bridges and structures directorate achievements: …

BRIDGES AND STRUCTURES DIRECTORATE ACHIEVEMENTS: Important Achievement of B & S Directorate during Last Seven Years

SN Broad Area of Achievement

Title of Achievement

Description of Achievement

Likely Benefits Current Status

of Implementation

Year 2014-15

1.

Throughput Enhancement

Design for DFC Loading (32.5t Axle Load)

Details of Deck Slab (M-30) of Composite Girder 12.2m Span (Straight track ) DFC Loading (32.5t Axle Load)

Standard design and drawing for IR Expeditious planning and

execution

Used for constructing standard bridges

on IR.

Design for 25t Loading 2008

Details of Deck Slab (M-30)

of Composite Girder 18.3m Span (Straight track & Curved track upto 4 degree) 25t Loading-2008


Barbed Wire fencing along the track, with provision of

Panel for future, on identified high speed routes.

Drawings in use

on Indian Railways.

Freight Throughput Freight

Throughput

Designs for 25t Loading 2008

Revised Design and Drawing of 6.1m Pre tensioned PSC Slab for “25t loading-2008”. Revised Design and Drawing

of 9.15m Post Tensioned PSC Slab for “25t loading-2008”.

Standard design and drawing for IR Expeditious

planning and

execution.

Drawings in use on Indian

Railways.


Design and Drawing of 30.5m open web girder (welded through type) for “25t loading-2008”.

Design and Drawing of 45.7m open web girder (welded through type) for “25t loading-2008”.

Standard design and drawing for IR Expeditious planning and execution.

Drawings in use on Indian Railways.

H-beam sleeper

Details of h-beam sleeper with switch expansion joint for bridges (BG) (for field trial only)

D.F.C. loading Residual camber for DFC loading (welded type) standard spans.

Cable passing Open Web Girder

Sketch drawing showing typical details of clamping arrangement for passing of service cable on open web girders.

Year 2015-16

2.



Double Box culvert suitable

for double line track curved up to 100. Segmental RCC box for RUB with foothpath with provision

of curtain and drop wall.

Standard design and drawing for IR Expeditious planning and execution

Used for constructing standard bridges on IR.

Throughput Designs for 25t Designs of RCC Abutments Standard design Used for





of Implementation

Enhancement Loading 2008

for 6.1m PSC Slab (2 Unit)

for seismic zone IV & V and severe environment conditions. (i) upto height 4m (ii) more than 4.0m and upto 6.0m height.

Revised designs of RCC Abutments for 9.15m PSC Post-tensioned slab for seismic zone IV & V and

severe environment conditions.

(i) upto height 4m (ii) more than 4.0m and upto 6.0m height.

and drawing for IR

Expeditious planning and execution .

constructing

standard bridges on IR.



Revision of drawings for RCC Single Box Culvert.

Standard design

and drawing for IR Expeditious planning and execution


Freight Throughput


Design and Drawing of 6.1m Post tensioned PSC Slab for “25t loading-2008”.

Design and Drawing of 12.2m U Girder Post

Tensioned for “25t loading-2008”. Design and Drawing of 18.3m U Girder Post Tensioned for “25t loading-

2008”.

Enhanced freight

throughput. Standard design and drawing for IR Expeditious

planning and execution.

Drawings in use on Indian Railways.

Freight

Throughput


Design and Drawing of 61.0m open web girder (welded through type) for

“25t loading-2008”. Design and Drawing of 76.2m open web girder

(welded through type) for “25t loading-2008”. Design and Drawing of

91.4m open web girder (welded through type) for “25t loading-2008”.

Enhanced freight throughput. Standard design

and drawing for IR Expeditious planning and execution.

Drawings in use

on Indian Railways.

Road over bridge

Revised Design and Drawing

of road over bridge bow string steel girder 48m clear span. Revised Design and Drawing of road over bridge bow string steel girder 36m clear

span. Revised Design and Drawing

of road over bridge bow string steel girder 42m clear span.





of Implementation


of road over bridge bow string steel girder 30m clear span. Revised Design and Drawing of road over bridge bow string steel girder 54m clear span.

Revised Design and Drawing of road over bridge bow string steel girder 60m clear span.

Year 2016-17

3.



RCC Pier (with ht 4 m) for 6.1m PSC slab for seismic

zone IV and V and severe environment conditions. Revised designs of RCC pier for 9.15 m PSC Post-tensioned slab for seismic zone IV & V and severe

environment conditions. (i) upto height 4m (ii) more than 4.0m and upto

6.0m height.

Standard design and drawing for IR

Expeditious planning and execution




Revision of drawings for RCC Single Box Culvert conforming to DFC Loading.

Standard design



Freight

Throughput

Designs for 25t

Loading 2008

Design and Drawing of 3.05m Post tensioned PSC

Slab for “25t loading-2008”. Design and Drawing of 3.66m Post tensioned PSC Slab for “25t loading-2008”. Design and Drawing of

9.15m (M60grade) Post tensioned PSC Slab for “25t

loading-2008”.

Enhanced freight throughput. Standard design and drawing for IR Expeditious


Drawings in use on Indian Railways

Freight Throughput

Road over bridge


of road over bridge bow string steel girder 72m clear span. Design and Drawing of Splicing arrangement for the bending of x-girder of bow

string arch girder.

Enhanced freight throughput. Standard design


Drawings in use

on Indian Railways

Road over bridge

NHAI(with special class loading of 385 ton)

Design and Drawing of Road

over bridge bow string steel girder 42m clear span for NHAI two lane one way (for





of Implementation

four lane)as per IRC-sp84-

2014(with special class loading of 385 ton) Design and Drawing of Road over bridge bow string steel girder 60m clear span for NHAI two lane one way (for four lane)as per IRC-sp84-

2014(with special class loading of 385 ton) Design and Drawing of Road over bridge bow string steel

girder 48m clear span for NHAI two lane one way (for

four lane)as per IRC-sp84-2014(with special class loading of 385 ton)

Year 2017-18

4. Throughput

Enhancement

As per Requirement of

Signal Directorate.

Drawing of Footing for Main Line Signal Post.


planning and execution


Railways.

Based on Southern

Rly.

Standard drawing for

Construction of RUB/SUBWAY using

combination of Cut and Push the Single Long Barrel RCC Box.

Standard design

and drawing for IR Expeditious

planning and execution

Used for constructing

standard bridges on IR.


Revised drawings of Double Box Culvert for straight track conforming to DFC Loading.

Standard design and drawing for IR Expeditious planning and execution


Freight Throughput


Design and Drawing of 4.57(M45grade) Post tensioned PSC Slab for “25t

loading-2008”. Design and Drawing of 12.2m(M60grade) Post

tensioned PSC U Slab for “25t loading-2008”

Enhanced freight throughput.




Freight Throughput

Road over bridge NHAI(with special class loading of 385 ton)

Design and Drawing of Road over bridge bow string steel girder 54m clear span for NHAI two lane one way (for

four lane)as per IRC-sp84-2014(with special class loading of 385 ton). Design and Drawing of Road over bridge bow string steel girder 72m clear span for

NHAI two lane one way (for

four lane)as per IRC-sp84-2014(with special class loading of 385 ton).

Enhanced freight throughput. Standard design and drawing for IR Expeditious planning and

execution.






of Implementation

Road over bridge

Design and Drawing of Road

over bridge bow string steel girder for zone-v 48m clear span. Design and Drawing of Road over bridge bow string steel girder for zone-v 60m clear span.

Design and Drawing of Road over bridge bow string steel girder for zone-v 72m clear span.

Design and Drawing of Road over bridge bow string steel

girder for zone-v 54m clear span.

Year 2018-19

Freight Throughput

Designs for DFC Loading

Design and Drawing of 12.2m Post tensioned PSC 4 I Girder for DFC loading

Standard design and drawing for IR Expeditious planning and execution.


Freight Throughput


Design and Drawing of 106.7m open web girder (welded through type) for

“25t loading-2008”.


planning and

execution.


Railways

Road over bridge NHAI three lane as per IRC: SP: 73-2015(with special

class loading of 385 ton)

Design and Drawing of Road over bridge bow string steel

girder 60m clear span for NHAI three lane (for four lane) as per IRC-sp73-2015(with special class loading of 385 ton).

Year 2019-20

Freight Throughput

Ballasted deck type OWGs for railway test track

Design & drawings of 30.5m,45.7m,61.0 m for test track of NWR

Standard design and drawing for test track

Drawings are in use on Indian Railways

Drawing No.CBS -0047, Typical Plan for Sacrificial shuttering arrangement for composite girder type

ROB.

Drawings RDSO/B-10283, RDSO/B-10283/1, RDSO/B-10283/2 RDSO/B-10283/3, RDSO/B- 10283/4,

RDSO/B-10283/5, RDSO/B-10283/6 & RDSO/B-10283/7 for 24.4 m post tensioned Girder for DFC loading have been issued in March 2020.

Year 2020-21

Freight

Throughput Road over bridge

Design & drawing of Road over bridge bow string steel girder 72.0m clear span for

NHAI three lane one way (with special class loading of 385 ton), Zone - V

Standard design and drawing for adoption over Indian Railways for six lane highways


Design and Drawing No. RDSO/B-10364, RDSO/B-10365, RDSO/B-10366, RDSO/B-10367, RDSO/B-10368 & RDSO/B-10369 issued for Pier, Pier Cap, Piles, Pile Cap, for Pier P1, P2, P3, P4, P5 & P6 respectively of Bridge No. 22 of Dedicated Test Track at NWR in June & July 2020.

Design and Drawing No. RDSO/B-10370 & RDSO/B-10371 issued for Abutment, Abutment Cap, Piles,

Pile Cap, for Abutment A1 & A2 of Bridge No. 22 of Dedicated Test Track at NWR in Aug.’2020.

Design and Drawing no. RDSO/B-10369/1 issued for pedestal of Pier P6 for Bridge No. 22 of Dedicated

Test Track at NWR in Dec.’2020.





of Implementation

Design and Drawing No. RDSO/B-10372 issued for Abutment, Abutment Cap, Piles, Pile Cap, for

Abutment A1 & A2 of Bridge No. 6 of Dedicated Test Track at NWR in Sept.’2020.

Plate Girders

SN Description Drawing no.

1 12.2 m Plate Girder- Welded Type (25t Loading 2008)

RDSO/B-16014/R1 Series

2. 24.4 m Plate Girder- Welded Type (25t Loading 2008)

RDSO/B-16016/R Series

Composite Girder

1. 12.2 m Composite Girder- Welded Type (25t Loading 2008)

RDSO/B-11752/R Series







Road Over Bridges(Details of POT- PTFE Bearing)

1 18 m (ROB) IRC-6 Loading Welded type RDSO/B-11756/6R1




Deck Slab

1

Details of deck slab for 5 Girder

arrangement for 18m, 24m, 30m and 36m Span ROB

RDSO/B-11771

Road Over Bridges (NHAI Configuration)

1. 18 m (NHAI ROB) IRC-6 Loading 2014

Welded Type RDSO/B-11772 Series

2. 24 m (NHAI ROB) IRC-6 Loading 2014 Welded Type

RDSO/B-11773 Series

3. 30 m (NHAI ROB) IRC-6 Loading 2014 Welded Type

RDSO/B-11774 Series

4. 36 m (NHAI ROB) IRC-6 Loading 2014

Welded Type RDSO/B-11775 Series

Temporary Arrangement

1. 26.8 m 25t Loading- Welded Type R. H Plate Girder

RDSO/B-11039R Series

2. 20.4 m 25t Loading- Welded Type Temporary Double I Plate Girder

RDSO/B-11041R Series

3. 26.8 m 25t Loading- Welded Type Temporary Double I Plate Girder

RDSO/B-11042 Series

4. Temporary box crib arrangement for support of relieving girder of length upto 26.8m for 25 t loading

RDSO/B-11043

Miscellaneous

1 Passing of service cable CBS-0039/R

2 Side pathway parallel to steel plate girder CBS-0042 Series

3 Typical plan of side pathway in standard composite girder

CBS-0046

4 Use of HSFG bolting in Railway bridges RDSO/B-11760/R1

Other Drawings

Design and drawings of POT-PTFE for 36m, 42m and 48m has been completed. Drawing for 36m (Drg. No. RDSO/B-10407/9), 42 m (Drg. No. RDSO/B-10408/9) and for 48m (Drg. No. RDSO/B-10406/9) have been uploaded on RDSO website.

Design and Drawing of POT-PTFE bearing for 30m (Drg No. RDSO/B-10409/10), 54m (Drg

No.10410/10) and 60m (Drg No. 10411/10) bow string arch girder for Road over Bridge has been completed and uploaded on RDSO web site.

Design and drawing of special channel sleeper for bridge No. 110 at Kanpur has been developed.

Joint note dated 25-02-2019 zero toe load fastening system for use in H-beam sleepers on girder bridges for vendor development sent to Railway Board.

DRAWING NO DETAIL ISSUE

RDSO/B-10424 to

10424/5

Stainless steel FOB 6m wide for span 25 -30m (for trial

only) 15-01-2021

RDSO/B-104246 to

10426/5

Stainless steel FOB 6m wide for span 20 -25m (for trial

only) 09-03-2021

RDSO/B-11754/R2 Revised 25t loading 2008 30.5m span Composite welded

girder ( upto 4 degree curve ) 16-06-2021

Rail Structure Interaction (RSI) Rail-Structure Interaction (RSI) Studies for Continuation of LWR on ballasted deck bridges:

B & S Dte. has done complete study in this subject

Software: LUSAS Bridge Plus and MIDAS advanced procured

Studies for RSI on 154 bridges using LUSAS Bridge Plus and MIDAS

Continuation of LWR on ballast less steel girders approved by Railway board recently. RDSO issued maintenance, anchorage and other instructions along with drawings in Dec. 2017.

Total No. of RSI Analysis:

2018 2019 2020 Up to June 2021

13 18 16 08

Guidelines Issued

Technical Guidelines for Box Pushing technique issued to Zonal railways.

Guidelines have been issued for use and pullout test of rag bolts to be used in tunnels for fixing Over Head Equipments. (July 2014).

Guidelines have been issued for “Cut n Cover” method for construction of Limited Height Subway.

(April 2015).

Guidelines have been issued for provision of OHE Mast for electrification at Pier/Abutment of new

and existing bridges along with typical design for OHE Mast foundation at pier of new bridge and different arrangement for provision of OHE Mast on existing bridges.(Oct. 2015)

Guidelines have been issued for “Planning of Important Bridges” for obtaining RDSO approval. (Nov. 2015)

Guidelines have been issued on “Methodology of Load Testing of Arch Bridges”, especially to check suitability of such bridges for 25t loading standards. (Revised in June 2017 vide BS :116R)

Guidelines have been issued on “Corrosion Protection of Concrete Structures”. (Revised in April

2018 vide BS: 88R)

Guidelines for Carrying out Rail-Structure Interaction for Railway Bridges (BS-114, Revision 2).

Development of guidelines for use of stud shears connection in composite construction in bridges

(BS-115).

Development of specification and Schedule of technical requirement for vendor approval of HSFG

bolting assembly with DTI washer.

Revision of guidelines for use of High Strength Friction Grip (HSFG) bolting assembly on bridges of Indian Railways (BS-111 Rev.-6).

After Bhuj (Gujrat) earthquake incidence, it was felt to review the provisions of earthquake in

design of bridges over Indian Railways. The detailed study was conducted and the guidelines were

issued jointly in collaboration with IIT, Kanpur. Further revised and modified guidelines were issued by RDSO through BS Report-118 in January 2015. With the experience gained over period of time and necessary deliberations in 82nd, 83rd and 84th BSC Meetings, IRS Code for Earthquake Resistant Design of Railway Bridges (Seismic Code) has been prepared and issued on

27.10.2017 for adoption on Indian Railways.

RDSO Guideline BS-130 is issued for fabrication inspection of RDSO Standard Spans composite I - Section Steel girder for ROB.

Guidelines for Load Testing of Bridges has been issued Jan.’2021.

Report of the Committee to examine and submit recommendations on waterlogging/ drainage problem in RUB/ Subways has been issued in April 2020.

Revised “Guideline on Type of Foundation for Railway Bridges, Report no. BS-127(R1)” has been issued in June 2021.

25t axle load operations over issued and circulated to Zonal Railways vide RDSO Letter No.

CBS/Golden/Q/Strength dated 08.08.2006

Technical inputs required for road map to operation of 25t axle load beyond 45kmph was issued

vide RDSO Letter No. CBS/25T Axle Load dated 10.12.2020

Follow-up action on the minutes of Railway Board meeting held on 10.12.2020 was sent to R.B vide Letter No. RDSO-BnSOEBS(SB-2)/19/2020-O/o ED/B n S/RDSO dated 23.06.2021

25t axle load operations over issued and circulated to Zonal Railways vide RDSO Letter No.

CBS/Golden/Q/Strength dated 08.03.2016

Technical inputs required for road map to operation of 25t axle load beyond 45kmph was issued

vide RDSO Letter No. CBS/25T Axle Load dated 10.12.2020

Follow-up action on the minutes of Railway Board meeting held on 10.12.2020 was sent to R.B vide Letter No. RDSO-BnSOEBS(SB-2)/19/2020-O/o ED/B n S/RDSO dated 23.06.2021

Guidelines on the Technology of 3-D Scanning of River Beds were issued to Zonal Railways in

May’2020. (BSC item No.1083) Proof Checking and Consultancy-

Bridge no. 111 40x40.7m at Jhoosi bridge of N.E. Railway near Allahabad: The proposal for

rebuilding the bridge was examined advised accordingly.

Procedural checking of design document of Sone Bridge No. 531 .

Problem in ballast-less track in tunnels. Team from RDSO (B&S and Track Directorate) visited the site, detailed technical report issued. Water ingress below base concrete need to be controlled. It was also suggested that ballast-less track designed by RDSO be tried in some length.

Minor Cracks in PSC Box Girders of Br No 695 in BRC division. Horizontal cracks observed at

junction of deck and girder and at location where cold joint formed due to casting of Girder in two stages. NDT testing was done by RDSO team, structurally it was found good. Quality control during construction was lacking. Railway was advised to do epoxy grouting/painting, keep bridge under observation and gradually relax the speed restriction, based on satisfactory performance of

remedial measures done.

Minor Cracks in PSC Box Girder- Br No 196 on Udhampur-Katra section:- Horizontal cracks observed at junction of deck and girder and at location where cold joint formed due to casting of Girder in two stages. NDT testing was done by RDSO team, structurally it was found good. Quality

control during construction was lacking. Railway was advised to do epoxy grouting/painting, keep

bridge under observation and gradually relax the speed restriction, based on satisfactory performance of remedial measures done.

PSC Box Girder Bridge 20X45.1 m span, based on RDSO Drg BA-10232 is being constructed by RVNL. They made a reference that some reinforcement details in the drawing are not clear. Based

on reference received, it was re-assessed and modified bar-bending schedule has been issued

CE/Con/E/NR, has forwarded a proposal for modifications of overall length of PSC Slab for 12.2m in accordance with requirement at site for bridge no 112 & bridge no 187 (in Lohta-Jangai section). Designs were accordingly, checked and modifications advised to Railway.

Chief Engineer/Construction, Central Railway advised that some cracks were observed (on side face in anchor zone) on post tensioned PSC Slab 9.15 m, during post tensioning operation. Similar cracks were also observed by RVNL (in Rewari-Manheru project). RDSO officials visited work sites of Central Railway and RVNL to study the problem. Though, there is no deficiency in design,

however, in field some problems are noticed.

Design has been revised. Some modifications have been made based on earlier issued drawing for

MBG loading. Revised drawing issued vide RDSO drg no. RDSO/B-10272/R dated 27.01.2015.

This drawing has been used by RVNL in Rewari-Manheru doubling project and found satisfactory

Southern Railway construction organization (Kochi) requested to suggest methodology for fixing of

Elastomeric Bearings in position where gap between Girder bottom and top of bearing is excessive. The matter was studied in detail based on earlier similar problems examined by RDSO, methods adopted on other organizations and instructions issued earlier in this regard. Based on these methodology for the rectification have been advised to Southern Railway vide CBS/DPC dated 13.03.2015.

RVNL requested RDSO to examine the suitability of PSC girder (as per RDSO drawing No. RDSO/B-

10270, suitable for c/c of piers as 26.2m) for c/c of piers upto 26.6m. The design was examined and found suitable with some changes, necessary modifications have been advised to RVNL vide RDSO’s letter No. CBS/DPC dated 27.05.2015.

Chief Project Manager-II/Bhubaneswar vide letter no. RVNL/BBS/HDS-PRDP/Railways/17/03/7091

dated 17.07.2015, forwarded design and drawings for 18.3m PSC slab suitable for 25t axle load and upto 2.5 degree curvature for in principle approval of RDSO. The designs and drawings have been scrutinized. There are certain clarifications required from RVNL/Consultant (involved in the design), RVNL has accordingly been advised vide letter No. CBS/DPS dated 14.08.2015.No

clarification has been received from RVNL yet.

As desired by CPM/RVNL/R, for clarification Alterations 1 A to 1 D has been issued in Drawing Nos: RDSO/B-10270/1 & RDSO/B-10270/4.

RVNL advised that cracks have been observed in span No. 4 & 6 of Bridge No. 557 (Spans

20x45.1m) PSC Box girder, span no 2 of Bridge No. 17 UP (3x30.5m) and Bridge 18 (1X30.5m) vide letter No. 2014/GCM/D/Misc.Corres dated 30.03.2015. RDSO Design and Testing team inspected these bridges. NDT testing have also been done report in this regard is under issue.

Detailed report in respect of Bridge 557, 17 and 18 have already been issued.

Chief Engineer (Const.)/MTP asked clarification on “cl.15.6.4 of IRS Concrete Bridge Code” for its applicability on circular short column subjected to Axial load and either bending about the major axis or biaxial bending. The matter was examined and clarification issued vide letter No.

CBS/Code/A&C dated 10.08.2015.

DMRC referred the issue of load to be applied in case of load testing of PSC Girders. The existing provisions of IRS-CBC were studied and clarification has been advised to all zonal Railways. This is

required for construction organizations also

One hanger (out of 24 hangers) of Span 19 has been broken on Third Godavari Bridge near Rajhamundry Station on SCR. Bridge site was visited on 05.08.2015 (accompanied to Adviser Bridges, Railway Board) and observations made have been advised to Railway vide letter No. CBS/MBSE/GB dated 13.08.2015.

In the incidence of sudden collapse of ballast retainer of Bridge No.54 between Ratlam-Godhra

major section (Limkheda-MangalMahudi block section) at KM 510/17-11.

On 7th June 2016 at around 06.00 hrs, The cantilever deck slab alongwith ballast retainer of

bridge No.54 on UP road at km 510/17-11 between Limkheda and MangalMahudi stations on GODHRA-RATLAM section of Western Railway collapsed. The site was inspected by ED/Structures and a joint report along with PCE /WR was prepared for further action.

Board vide letter no. 2016/24/CE-III/BR/Jogighopa Bridge dated 07.06.2016 advised RDSO to

inspect Jogighopa bridge on Guwahati – Bongaigaon section of NFR regarding structural deficiencies in the Narayan Setu on Brahamputra River. RDSO team inspected the bridge during June 2016 and a detailed report was submitted to Board. Board has asked NFR to take action as

per the report submitted by RDSO.

Chief Engineer (C) MTP desired some clarification on 18.3 m PSC-I girder drawing no. RDSO/B-

10273 vide letter no. MT/W/R/BSU/40/CA/Pt. I dated 01.01.2016. The queries regarding reinforcements and sheathing duct etc were examined and replied vide letter no. CBS/DPC dated 07.01.2016.

South Central Railway requested to examine the suitability of 12.2m PSC slab (Drg. No. RDSO/B-

10271) for skew condition and centre to centre of pier 14570 mm/14580 mm with a skew angle of 18.5 degree. This matter was examined and replied vide CBS/DPS dated 10.06.2016

Construction Organization of Central Railway has taken up works of Instrumentation in association

with IIT/Roorkee. As requested by Central Railway, RDSO officials visited the site in 2nd week of July 2016 to see the instrumentation regarding measurement of stresses in PSC girders

Clarification regarding non suitability of 12.2 m PSC slab vide RDSO/B-10271 for curved alignment upto 4o given to M/s KRCL along with advice to refer RDSO Drawing No. RDSO/B-10265 for curved

alignment upto 2.50.

Light weight 9.15m span PSC slab has been designed. Railway Board vide letter no. 2017/10/CE-III/BR/PSC Slab, dated 20.06.2017 has directed for replacement of Steel girders up to 9.15 m span by PSC Slabs

Clarification regarding dispensation of provision of uniform bedding layer of cement and cast iron

borings in 1:1 proportion underneath PSC Slabs over properly designed bed blocks of adequate strength given to WR on 22.08.2017.

Examination of cracks in PSC I Girder (RDSO/B-10262) has been done in Dausa-Deedwana section and Load Testing as per IRS CBC has been advised.

Checking of design and drawing of 44.5 m span Steel composite girder ROB NHAI configuration in State of Andhra Pradesh.

Primary Scrutiny of design and drawing of 50 m span steel composite Semi through girder ROB

submitted by S. Rly.

Checking suitability of Bridges for design & drawing of plate girders and composite girder for running 25 t loading-2008@ 100kmph on DFC routes & 25t Identified routes.

Checking of bridge no. 251 up of Northern Railway 60.96 m OWG for replacing trough has been done.

Checking of channel sleeper for extension piece for RVNL.

Checking of end bracket for 76.2m span OWG for RVNL of bridge at Kalpi in NCR.

Necessary guidance and clarification given to N.F. Railway on various issues including camber for

Bridge No. 409 Kachhla Bridge.

Necessary guidelines also issued to all zonal railways on Camber of prestressed open web girder.

Checking of 45.7m open web girder of W.C. Railway for CC+8+2 loading has been done.

Development of sketch for maintaining spacing of channel sleeper 680mm c/c for bridge no. 262

of N. Railway.

Dispensation for fabrication of 45.7m & 30.5m span as per old RDSO drawing given to Manmad workshop, Central Railway.

Checking of design & drawing of Road over bridge bow string girder span 45.5m for E.C.Rly.


Checking of design & drawing of Road over bridge bow string girder span 51.34m for S.W.Rly.




Checking of design & drawing of Road over bridge bow string girder span 75.5m for N.Rly.








Checking of design & drawing of Road over bridge bow string girder span 51.2m for N.F.Rly.

Checking of design & drawing of Road over bridge Truss type span 115.0m for N.Rly


Checking of design & drawing of Road over bridge bow string girder span 63.0m for N.F.Rly.

Checking of design & drawing of Road over bridge Truss type span 89.89m for E.Rly.

Measures taken to achieve Economy in Design

Revision of Provisions related to crack width in IRS-Concrete Bridge Code (CBC):- The provisions regarding crack width were very stringent nearly 80% additional reinforcement were required to be provided, to comply the instructions as compared to reinforcement required for moment/load

considerations.

With revision in crack width requirements (issued in Dec 2014) there will be saving of Crores of Rupees on year to year basis. (BMRC projected saving of Rs 2.5 cr per km of Metro construction).

Deletion of para 14.9 and 15.9.9 of IRS-CBC having provisions regarding Shrinkage and

Temperature reinforcement in contradiction to distribution reinforcement. Nearly 2-3 tonne additional reinforcement were required to be provided to follow these provisions in each RCC Box (for two line). These being redundant have been deleted. RCC Box designs have been modified.

A&C 5 to IRS-CBC (reprint 2014) dated 13.06.2017 issued. Clause 16.4.4.4.5 modified and

maximum spacing of shear stirrups in PSC increased as per reference code i.e. BS: 5400. This will

reduce congestion of shear links as well as quantity of shear reinforcement in PSC.

Newly designed PSC U slab for 12.2 m span weighs only 89t against existing PSC slab of 163t,

requires about 30% less height above bed block level, economical, replaceable with Plate Girders & shall facilitate continuation of LWR on Bridges.

Additional forces are to be considered for bridges in curved track. Generally bridges are planned in

straight alignment. To achieve economy, separate designs have been issued for twin RCC box i.e. for straight and curved alignment. Updation of Codes & Manuals

Various modifications proposed or carried out in codes and manuals with due deliberations are as under-

IRS-Concrete Bridge Code-

Re-print of Indian Railway Standard Concrete Bridge Code (IRS-CBC) (incorporating 13 A&C) – Indian Railway Standards “Code of Practice for Plain, Reinforced and Pre-stressed concrete for General Bridge Construction”, (Concrete Bridge Code) was issued in year 1997. Thereafter, 13 correction slips were issued. Many clauses were modified by A&C 1 and 12, itself. Some clauses were modified by more than one A&C. Therefore, up in July 2014 and the

IRS-CBC code reprinted in September 2014. Soft copy in PDF format uploaded on RDSO intranet site i.e. 10.100.2.19. The following corrections slips have been issued/ proposed –

A&C-1 to IRS-CBC (reprint 2014) dated 16.12.2014 issued. Provision of crack width in IRS-CBC

were examined in relation with provisions in other codes. Existing provisions were considered too stringent and accordingly, modified.

A&C 2 to IRS-CBC (reprint 2014) dated 14.01.2015 issued. Clause 5.4.7 of IRS-CBC. Provision of coating for concrete bridges re-introduced.

A&C 3 to IRS-CBC (reprint 2014) dated 20.01.2015 issued. Clause 4.5.1, 14.9, 15.9.4.1, 15.9.4.2 & 15.9.9 of IRS-CBC pertains to use Fe-500 grade or higher grade steel for reinforcement.

A&C 4 to IRS-CBC (reprint 2014) dated 15.11.2016 issued. Clause 14.9, 14.9.1 & 15.9.9

pertaining to provision of shrinkage and temperature reinforcement deleted.

A&C 5 to IRS-CBC (reprint 2014) dated 13.06.2017 issued. Clause 16.4.4.4.5 modified and maximum spacing of shear stirrups in PSC increased as per reference code i.e. BS: 5400.

A&C 6 to IRS-CBC (reprint 2014) dated 27.07.2017 issued. Clause 7.1.5 modified and use of Stainless Steel Reinforcement as per IS 16651:2017 permitted in unavoidable circumstances/extreme cases.

A&C 7 to IRS-CBC (reprint 2014) dated 26.06.2018 issued regarding addition of stainless steel

reinforcement also as a type of reinforcement & deletion of provision for application of cement slurry coating to the reinforcement.

A&C No. 8 to IRS CBC (reprint 2014) dated 23.05.2019 issued regarding HDPE sheathing, stress-

strain curve, Lever arm formula, unit of Relative Profile Vol., Heading of Table B-1and B-2 & figure B1-2.

A&C No. 9 to IRS CBC (reprint 2014) dated 08.07.2021 issued regarding Coatings for Concrete.

Item 1060 regarding Use of Corrosion Resistant Reinforcement was delivered in 84th BSC. The committee recommended that existing provisions are enough. Only in extremes & coastal areas (upto 30 km from coastal areas) & unavoidable circumstances Stainless Steel Reinforcement bars may be used.

IRS Steel Bridge Code

IRS Steel Bridge Code - Code of Practice for the Design of Steel or Wrought Iron Bridges Carrying Rail, Road or pedestrian Traffic, Adopted-1941. Revised-1962, Reprinted-2017 (Incorporating A&C

Slip No.1 to 21)

A&C slip no. 22 issued on 25.09.2019 regarding clause no. heading of clause 7.1 to be changed and existing clause 7.1.1 to be replaced by new clause 7.1.1. Seismic Code

Indian railway standard code for earthquake resistant design of railway bridges (seismic code)

adopted-2017

IRS Seismic Code adopted in 2017, Revised in 2020 & issued.

Arch Bridge Code

A&C 8 to Arch Bridge Code dated 28.01.2015 issued for Clause 5.3.3 pertaining to Arch Load Testing. With issue of this A&C, Arches of smaller spans (between 1m to 4.5m) have also been covered under this.

A&C Slip No. 9 to Indian Railway Arch Bridge Code regarding replacement of phrases “Distressed Bridge”, “IS 1911” by ORN 1 or 2” and “IS 875 (Part 1)” respectively and modification in Permissible Stresses in Masonry/Concrete Arches has been issued Nov.’2019. Bridge Rule

Third reprinted in 2014 (Incorporating A&C Slip upto 46)

A&C slip No.47 issued on 22.06.2017 regarding LWR/CWR.

A&C slip No.48 issued on 22.06.2017 regarding provision for design of sub structure for impact

loads from vehicles underneath.

A&C slip No.49 issued on 26.12.2017 regarding modification of clause no. 2.12 - Forces and effects due to earthquake. Bridge Sub-Structure & Foundation Code

Second Revision in 2013

A&C slip no. 1 issued on 17.04.2014 regarding minimum clearance for bridge from water level of design discharge.

A&C slip no. 2 issued on 20.10.2016 regarding deletion of clause no. 7.5.3.

A&C slip no. 3 issued on 22.06.2017 regarding modification of existing clause no. 4.5.9.

A&C slip no. 4 issued on 11.08.2017 regarding clause no. 4.9.2 & 4.9.3.

A&C slip no. 5 issued on 04.10.2019 regarding clause no. 5.12.3, 5.16.2.2 & 5.16.2.3.

A&C slip no. 6 issued on 04.11.2019 regarding inserting of new clause/modification of existing

clause no.1.2, 1.5I(f), 5.12.1,5.12.2(a)(b)(c), 5.12.3,5.12.5 to 5.12.8 & 5.16.2.7(b).

A&C slip no. 7 issued on 11.11.2019 regarding replacement of existing clause no. 5.10.

A&C slip no. 8 issued on 11.11.2019 regarding modification of para 3.1 of Appendix V.

A&C Slip No. 9 to IRS Code of Practice for the Design of Sub-Structures and Foundations of

Bridges regarding Practice of Design Loads for Buildings & Structures and Unit Weight of Building Materials has been issued in July 2020 Welded Bridge Code

A&C slip no. 1 issued on 15.02.2015 regarding inspection and testing of welded joints.

A&C slip no. 2 issued on 11.07.2018 regarding inspection of steel bridge girder. Fabrication And Eraction Of Steel Girder Bridges And Locomotives Turntables Fabrication Specifications

Reprinted in 2018 (Incorporating A&C Slip upto 4)

A&C slip no. 5 issued on 30.08.2013 regarding revision of paint specification, finishing coats and quality grade designation.

A&C slip no. 6 issued on 02.01.2014 regarding high strength friction grip bolts.

A&C slip no. 7 issued on 02.05.2014 regarding paras 39.2.2, 39.2.3 & 39.2.4.

A&C slip no. 8 issued on 27.08.2014 regarding oiling, painting & metalizing paras.

A&C slip no. 9 issued on 16.01.2015 regarding HFSG bolts.

A&C slip no. 10 issued on 22.03.2016 regarding HFSG bolts.

A&C slip no. 11 issued on 07.05.2019 regarding change in provision to HFSG bolts

Indian Railway Bridge Manual

A&C Slip No. 37 to IRBM regarding “Inspection Performa for PSC/Composite Girders.” has been issued Oct.’2019. Specifications

S.No. Specification Detail Date of Issue

1 Doc No. BS-S-7.5.3.1-5 Specification for HSFG bolting assemblies with direct tension indicator washers -3(a) 21.12.2018

2 Doc No. BS-S-7.5.3.1-8 Specification for Non-Electrolytically Applied Zinc Flake Coatings for HSFG Bolting Assemblies -3(d)

04.12.2019

3 Doc No BS-S-7.5.3.1-9 Specification for Higher-Strength Martensitic Stainless Steel for Bridge and Associated

Structural Applications -3( e) 17.12.2020

Miscellaneous Works

Signal gantry work ( for Trial only)

Stainless steel ROB ( 36 m span for Trial only)

Guideline for ROB checking.

Guideline for TCAS tower checking. B & S REPORTS

S.No. Report No. Title Month & Year

1 BS-102

GUIDELINES FOR INSPECTION &

MAINTENANCE OF BRIDGE BEARINGS (Revision 1)

June, 2015

2 BS-105 GUIDELINES ON PIPE LINE CROSSINGS

UNDER RAILWAY TRACK with A&C upto 7

October -2009/ May-2013/ April-2014/April-

2017/Nov2017

3 BS-106 BROAD GUIDELINES FOR INSTRUMENTATION OF BRIDGES FOR RUNNING HIGHER AXLE

LOADS (Revision 1)

April, 2010/ Dec 2016

4 BS-110 (R) Guidelines on Fabrication of Steel Girders for Construction/Field Engineers (Revision 1) with Addendum & Corrigendum

Dec-2011/July - 2017

5 BS-111 Guidelines for Use of High Strength Friction Grip (HSFG) Bolting assemblies on Bridges on Indian Railways (Revision - 6)

June-2012/ May-2019

6 BS-117 Scour Depth estimation, counter measures & monitoring at bridge crossing. Guide for engineers.( Revision 1)

June -2013/2015

7 BS-112 Guidelines for Planning of Road Over Bridges May-14

8 BS-113 Guidelines for Providing Arrangements for Bridge Inspection

Nov-14

9 BS-118 RDSO Guidelines on Seismic Design of Railway Bridges (Revision 1)

January-2015/Nov.-2015

10 BS -119 Guidelines for carrying out Rail-Structure Interaction Studies for Metro systems (Revision 2)

Jan-15

11 BS-120

RDSO Guidelines for Construction of Limited

Height Subway (LHS) by Cut and Cover Method

Apr-15

12 BS-121

Guidelines for Provisions of OHE MAST for Electrification at New and Existing Bridge Pier/Abutment A&C no 1 to Report no. BS-121 on Guidelines for Provisions of OHE MAST for Electrification

at New & existing bridge Pier/Abutment.

Oct-15 July-2020

13 BS-114 Guidelines for Carrying out Rail-Structure

Interaction for Railway Bridges (Revision 2)

November -2015 /

August 2016

14 BS-122 Guidelines of RDSO approval of Planning and

DBR for Important Bridges Nov-15

15 BS-115 Guidelines for Composite Construction including Stud Shear Connectors (Revision 1)

Dec -2015 / April 2016

16 BS-116 R Load Testing of Arch Bridges Jun-17

17 BS-123 Guidelines for checking suitability of existing sub-structure of bridges for 25T-2008 Loading

Aug-17

18 BS-124 Construction of Bogibeel, Rail-Cum-Road Bridge over River Brahmaputra on N.F.Railway

Nov-17

19 BS-125 Method statement for fabrication of 45.7m through type open web girder for 25t loading drawing no. B-17181 series

Jun-18

20 BS-126 Guidelines for continuation of LWR/CWR over

ballasted deck bridges on Indian Railways Jul-18

21 BS-127 Guidelines on type of foundations for Railway Bridges

May-19

22 BS-128 Guidelines for carrying out loads deflection tests of plate, open web and composite

girders.

Oct-19

23 BS-111(Rev.6) Guidelines for use of High Strength Friction Grio(HSFG) bridge on Indian Railways(Revision 6)

May-2019

24. BS-127(R1) Guidelines on type of foundations for Railway Bridges

June-2020

25. BS-129

Guidelines for 4D(BrIM) based inspection of Indian Railway bridges using 3D bridge information model & unmanned aerial system (Drone).

May-2021

26. BS-130 RDSO guidelines for fabrication Inspection of RDSO Standards Spans- Composite I-Section Steel girders for road over bridges(ROBs)

June-2021

Web-based application for approval of GAD’s of ROB’s.

Web based application for online monitoring/approval of GAD of Road over Bridges, being constructed by NHAI or other State Highway/Government agencies was developed. Data required for planning of ROB/GAD and Joint Procedure Order, Check list for preparation of GAD, Guidelines for preparation of GAD’s, Typical GAD and standard design of various spans have been prepared and provided to Railway Board

Creation of Database of Designs done by Railways for PSC or Concrete Bridges including ROB’s (other than RDSO drawings)- Details were collected from Railways and PSU’s in regard to especially designed superstructures

(other than RDSO standard spans) pertaining to Railway Bridges, ROB and RUBs for different loading standards. Total 449 different span designs have accordingly been compiled. Railways have been advised accordingly, to take reference, if the same are required on

their system. Testing/Activities performed during 2014-2019 (AS ON JUNE 2019)

SR. NO.

DATE DESCRIPTION REPORT

NO.

2014-15

1 May 2014 Non destructive testing of Bridge no. 695, near

Memadabad, Baroda Division, Western Railway BST-23

2 JUL- 2014 Report on non destructive testing of Bridge no. 196, Katra –Udhampur Northern Railway.

BST-24

2015-16

3 MAR-2015 Instrumentation on bridge no.116 over river Chambal,Jhansi Division, North Central Railway

BST-19B

4 MAY - 2015 Report on non destructive testing of Bridge no. 557,

Cuttack-Barang Section, East Coast Railway BST – 25

5 JUN- 2015 Report on non destructive testing of Bridge no. 17, Ghantikal– Chutang Garh Section, East Coast Railway

BST – 26R

6 JUN - 2015 Report on non destructive testing of Bridge no. 18 Ghantikal– Chutang Garh Section, East Coast Railway

BST – 27

7 JUN- 2015

Report on non destructive testing of Bridge no. 19 Ghantikal– Chutang Garh Section, East Coast Railway

BST – 28

8 AUG - 2015 Instrumentation report on stresses induced in members of 30.5 m open web girder during trail assembly.

BST- 29

9 OCT - 2015 Report on non destructive testing of bridge no. 325 near Titlagarh, Sambalpur division, East Coast Railway

BST- 30

10 MAR- 2016 Non destructive testing of retaining wall of rub at

RDSO Manak nagar, lucknow

BST- 31

2016-17

11 MAY - 2016

Report on non destructive testing of Bridge no. 332 near

Balasore, Kharagpur division, South Eastern Railway

BST- 32

12 NOV - 2016

Instrumentation on rail cum road Bridge no. 7 over river ganga near patna, East Central Railway

BST- 33

2017-18

13 APR - 2017 Non destructive testing on pier no. - p0/6 & p0/7 near Amausi airport

BST- 34

14 MAY - 2017 Vibration testing on Mawaiya bridge, Northern railway,

Lucknow

BST- 35

15 JUL- 2017 Non destructive testing of bridge no. 7 (near Kota), in Bina - Kota doubling project of WCR.

BST- 36

16 AUG-2017 Instrumentation on bridge no. 132 near Rampur hat, Eastern railway

BST- 37

17 AUG-2017 Non destructive testing of bridge no.34 (near Kota), in Bina - Kota doubling project of WCR.

BST- 38

2018-19

18 JAN2018 TO JUN2018

Compressive strength test of 51 no. Paver blocks provided by TEN/RDSO

Testing for TEN/ RDSO

19 FEB 2018 Static and impact load test of 6 nos. Of sleepers recommended by track design Dte. And supplied by M/s APPL industries ltd. Pune

Referred by Track Design Dte.

20 JUN- 2018

Static and impact load test of 6 nos. Of sleepers recommended by track design dte. And supplied by m/s calstar sponge ltd. Kolkata

Referred by Track Design Dte.

21 JUL- 2018 Guidelines for continuation of LWR/CWR over ballasted deck bridges on Indian Railways.

BS-126

22 JUL- 2018 Non destructive testing on bridge no. 51 in NKE-RXL gauge conversion project of ECR.

BST-39

23 JUL- 2018 Non destructive testing on bridge no. 52a in NKE-RXL

gauge conversion project of ECR. BST-40

24 JUL--2018 Compressive strength test of 06 no. Bricks provided by TEN/RDSO

Testing for TEN/ RDSO

25 AUG-2018 Instrumentation scheme on Bogibeel rail-road bridge over river Brahmaputra NF Railway

26 AUG-2018 Comparison of experimental and theoretical natural frequency of simply supported beam ( under project vibrational analysis of bridges )

27 SEPT- 2018 NDT on Noney Bridge No. 164 near Imphal NF Railway BST-41

28 DEC- 2018 Instrumentation guidelines for 160 kmph sectional

speed on bridges. BST-42

29 JAN-2019 Instrumentation scheme for structural health monitoring bridge no. 44 in Jiribam-Imphal Section.

30 FEB- 2019 Scrutiny and observations of drone survey report of Br

no. 73 Up, 73 DN, 75 UP, 75 DN & 624 WR

31 FEB- 2019 Scrutiny and observations of drone survey report of Br no. 159 SECR

32 FEB- 2019 Scrutiny and observations of drone survey report of Br no.47,7,16a &17 ECR

33 FEB- 2019 Scrutiny and observations of drone survey report of Br

no.163, 88, 80 &17 NR

34 FEB- 2019 Scrutiny and observations of drone survey report of 18 UP &18 DN ER

35 FEB- 2019 Scrutiny and observations of drone survey report of 952 UP and 952 DN and 766/1 of WCR

36 MAR- 2019 Instrumentation scheme of bridge no.78,89,115,196 of Bairabi-Sairang, Section, Mizoram of NFR

37 MAR-2019

Static and impact load test of 6 nos.of

sleepers recommended by Track Design Dte. And supplied by m/s ked sati iron & steel pvt ltd, Kolkata.

2018-19

38 APR-2019 Non destructive testing on washing pit at Mau JN. of NER

BST-43

39 MAY-2019 Compressive strength of 22 no of pavers block provided by for office of Town Engineer/Civil works

Report sent to concern Departmant

40 MAY-2019 Analysis of measurement of deflection and frequency spectrum of bridge no. 249,31,yamuna bridge, NR

41 MAY-2019 Longitudinal force analysis and sorting instrumentation report for DIR/BS-II

42 JUN-2019 Scrutiny & observation of drone survey report of Bridge no 13CCR & 17ER

43 JULY-2019 Analysis on experimental investigation of evaluation of

LF in PG bridge no. 514 (span5),SERC

44 AUG-2019 Scrutiny of instrumentation scheme for composite girder

bridge and bowstring bridge submitted by MS Set Ponint Technologies,Greece( local vendor Banket bihari Engg LLP)

45 SEP-2019 Functional requirements for automatic camber

measurement system for yamuna bridge Delhi

46 SEP-2019 Scrutiny & observations of Drone survey report of bridge no 531 ECR

47 DEC-2019 Scrutiny & observation of Drone survey report of bridge no. 0 NFR

48 JAN-2020 Testing scheme for composite girder & Bow string girder bridges

49 FEB-2020 Guidelines for testing of Railway bridge using drone BS-129

2020-21

50 MAY-2020 Scrutiny & observations of Drone survey report of

bridge no 40,73 of NFR

51 AUG0-2020 Testing of bridge no 97A,JJP-TMA gauge conversion project of ECR

52 AUG-2020 Testing of bridge no 102,JJP-TMA gauge conversion project of ECR

53 JUN-2020 Testing of bridge no 97A 7 102 JJP-TMA gauge conversion project of ECR

54 JUL-2020 Compressive strength test of 24 no. concrete cores extracted from Br. No. 97A ECR

55 NOV-2020

Scrutiny/Analysis of SERC report on comparative evaluation of international codes on dispersion of LF in railway bridges under project analysis & management of longitudinal forces on bridges.

56 DEC-2020

Scrutiny/Analysis of SERC report on review of existing

IRS provisions for dispersion of LF in railway bridges under project analysis & management of longitudinal forces on bridges.

57 JAN-2021

Scrutiny/Analysis of SERC report on plate girder bridge no. 514 span 7 & 9 between Abbur & Melpatti in Chennai division,SR under project analysis &

management of longitudinal forces on bridges

58 JAN-2021

Scrutiny/Analysis of SERC report on prestressed concrete bridge no. 515 between MAU-RU, chennai

division,SR under project analysis & management of longitudinal forces on bridges

59 JAN-2021 Non Destructive testing on Br. No. 163 between PFM-PRG, NR

60 MAR-2021 Guidelines for ROB/Lalkhadan (Truss-superstructure) for

SEC Railway

Total Speed Certificate Issued in last 5 years = 632 nos. , Reports = 124 nos. INSPECTION

Open web girders fabricated by Railway Workshops and welded girders, fabricated by Railway

Workshops as well as trades, are inspected by RDSO.

The year wise position of inspection of open web and welded girder since year 2014, is given below:

Year Open Web Girders (t)

Plate Girder (t)

Bow String Girder

Total

2013-2014 20875 6187 - 27062

2014-2015 18987 6627 - 25614

2015-2016 25690 4747 - 30437

2016-2017 24109 8098 - 32207

2017-2018 28403 12240 - 40643

2018-2019 35621 17218 - 52839

2019-2020 33567 18277 - 51844

2020-2021 33023.5 18827 15211 67061.5

B&F Units Works

Check list for preparation of Geometric Arrangement of Drawing of Railway Bridges.

Guidelines on types of foundations.

General requirement of Under Water Inspection with RORV technology. List of DBR’s of Metro Rail Projects scrutinized in B&S Dte RDSO-

SN Name of Metro Type of DBR Status Remarks

1. Rapid Metrorail Gurgaon Ltd Viaduct Approved Vide RB’s letter no. 2012/proj/Rapid

Metro/2/4 date 31.10.2012

2. Hyderabad Metro Rail Project Viaduct Approved Vide RB’s letter no. 2012/proj/HMR/30/4 date

11.01.2013

3. Chennai Metro Phase-I Viaduct Approved Vide RB’s letter no. 2012/proj/Chennai/30/6 date

22.01.2013

4. Bangalore Metro Phase-I Viaduct Approved Vide RB’s letter no. 2010/proj/Bangalore/Misc dated 23.09.2013

5. Jaipur Metro viaduct Approved Vide RB’s letter no. 2010/proj/Bangalore/Misc. date 23.09.2013 / 05.09.2013

6. Mumbai Metro One Private Ltd. (MMOPL)

Viaduct Approved Vide RB’s letter no. 2011/proj/BB/30/5/SoD date 03.01.2014

7. Kochi Metro Viaduct Approved Vide RB’s letter no. 2013/proj/DBR/Kochi/2/7 date

29.04.2015

8. DMRC Phase- III Viaduct Approved Vide RB’s letter no. 2013/proj/DMRC/DBR/2/10 date 24.11.2015

9. BMRCL Phase-II Viaduct Approved Vide RB’s letter no. 2014/proj/DBR/BNC/2/10 date 01.05.2015

10. LMRC Viaduct Approved Vide RB’s letter no. 2014/proj/DBR/2/11 date 15.09.2015

11. Ahmedabad Metro (MEGA) Viaduct Approved Vide RB’s letter no. 2014/proj/DBR/BNC/2/710 date 28.08.2015

12. Navi Mumbai Viaduct Approved

Vide RB’s letter no.

2016/proj/MMRP/DBR/2/4 date 07.03.2016

13. Nagpur Metro Viaduct Approved Vide RB’s letter no. 2015/proj/Nagpur/DBR/2/8 date 28.06.2016

14. Bangalore Metro Phase-I UG Bored Tunnel

Approved Vide RB’s letter no. 2015/proj/Bangalore/Misc dated 04.04.2016

15. Chennai Metro Phase-I Bored Tunnel Approved Vide RB’s letter no. 2017/proj/CMRL/DBR/2/1 date 10.03.2017

16. Nagpur Metro Elevated Station

Approved Vide RB’s letter no. 2015/proj/Nagpur/DBR/2/8 dated 05.04.2017

17. Noida Metro Viaduct Approved Vide RB’s letter no. 2016/proj/DBR/Noida/2/10 date 07.09.2017

18. Bangalore Metro Phase-II Viaduct Approved Vide RB’s letter no.

SN Name of Metro Type of DBR Status Remarks

(A&B) 2017/proj/BMRCL/DBR/2/2 dated 06.11.2017

19. Kolkata Metro East West Corridor

Viaduct Approved Vide RB’s letter no. 2018/Proj/KMRCL/DBR/30/10 dated 20.08.2018

20. NCRTC (Delhi-Meerut Corridor)

Viaduct Approved

Vide RB’s letter no. 2018/proj/NCRTC/DBR/30/5 dated 22.06.2018

21. Scrutiny of Design Basis Report for Bored Tunnel of Jaipur Metro Rail Corporation Limited (JMRCL) done and remarks sent to UTHS Directorate on 10.10.2018 and this DBR is approved by Railway Board vide letter no. 2011/Proj./Jaipur/2/1 dated 20.06.2019.

22. Scrutiny of Design Basis Report for Viaduct of Mumbai Metro Rail Project of MMRDA done and remarks sent to UTHS Directorate on 08.08.2018 and this DBR is approved by Railway Board vide letter no. 2018/proj/MMRDA/DBR/30/13 dated 13.08.2019.

23. Scrutiny of Design Basis Report for Viaduct of Pune Metro Rail Project done and remarks sent to UTHS Directorate on 27.05.2019 and this DBR is approved by Railway Board vide letter no. 2019/Proj/MAHA-Metro/PUNE/DBR/30/11 dated 26.08.2019.

24. Scrutiny of Design Basis Report for Viaduct of Kanpur Metro Rail Project Of LMRC done and remarks sent to UTHS Directorate on 11.09.2019 and this DBR is approved by Railway Board vide letter no. 2019/Proj/KANPUR/DBR/30/21 dated 03.10.2019.

25.

Scrutiny of Design Basis Report for Bored Tunnel of Kolkata Metro Rail Corporation Ltd (KMRCL) for East – West Metro Corridor done and remarks sent to UTHS Directorate on 29.11.2019 and this DBR is approved by Railway Board vide letter no. 2018/Proj/KMRCL/DBR/30/10 dated 06.02.2020

26. Guidelines on the Technology of 3-D Scanning of River Beds were issued to Zonal Railways in May’2020. (BSC item No.1083)

27. Scrutiny of Design Basis Report for Elevated Stations of NCRTC done and remarks sent to UTHS Directorate on 23.04.2020 and this DBR is approved by Railway Board vide letter no. 2018/proj/NCRTC/DBR/30/5 dated 29.05.2020.

28. Scrutiny of Design Basis Report for Bored Tunnels of NCRTC done and remarks sent to UTHS Directorate on 03.07.2020 and this DBR is approved by Railway Board vide letter no. 2020/proj/NCRTC/DBR/UG/30/3 dated 30.07.2020.

List of Model DBR’s drafted

SN Type of DBR Status Remarks

1. Viaduct Approved Vide RB’s letter no. 2015/proj/Model/DBR/2/2 dated 15.01.2018

2. Elevated Station Approved Vide RB’s letter no. 2015/proj/Model/DBR/2/2 dated 21.06.2016

3. Bored Tunnel Approved Vide RB’s letter no. 2015/proj/Nagpur DBR/2/2 dated 05.04.2017

EOI for Ballastless Track on viaduct/tunnels on Indian Railway: For developing a list of System Providers for Ballastless Track on Viaduct/ Tunnels on Indian Railways, Railway Board has advised to call EOI.

DBR of Important Bridges Approved

SN Rly. Date of

Approval Br.

No./River Proposed Span arrangement

Section

Span

Approved

Remarks

1 WCR 9/10/201

4

766/1,Narm

ada

1x18.30+14x45.70m,

U-type PSC&OWG

Budni-Hoshangab

ad,

Same as

proposed

Narmada bridge on 3rd line.

Span arrangement is

similar to DN line bridge at a distance of 25m.

SN Rly. Date of

Approval Br.


Section Span

Approved

Remarks

2 NFR 1/28/2015

40/Teesta 20x45.70m,OWG

New Jalpaiguri-New Coochbehar

Same as proposed

New bridge for

doubling project at 40m downstream of existing rail bridge with similar span arrangement.

3 NFR 4/13/201

5 116/Torsa 9x45.72m OWG

New Jalpaiguri-

New Coochbehar

Same as

proposed

New bridge for doubling project. Span

arrangement is

similar to the existing DN line bridge at 30m.

4 SCR 5/29/2015

361/Ashna 3x18.30m+7x24.40m PSC

MUE-PBN Same as proposed

New bridge doubling work at 25m downstream of existing bridge with similar span

arrangement.

5 SCR 9/21/2015

340/Purna 2x17.33m+11x17.8m PSC

MUE-PBN Same as proposed

New bridge doubling work at

25m downstream of

existing bridge with similar span arrangement.

6 SCR 10/8/2015

223/Kundu 9x30.5 OWG Nandyal-Yerraguntla

11x18.30 PSC

Bridge for new line and waterway was kept considering highway bridge

in upstream.

7 WCR 3/10/2016

55/Kalisindh 7x45.7m,OWG RAJ-Parvati Same as proposed

In connection with construction of

New BG Rail line

8 NCR 3/11/2016

1275/2,Yamuna

10x76.2m,OWG Bhimsen-Jhansi at Kalpi

Same as proposed

New bridge for doubling project.

Span arrangement is similar to the existing DN line bridge.

9 WCR 4/13/2016

Tawa River Bridge

8X61.m,OWG Sontalai-Bagratawa

same as proposed

New bridge for doubling project. Old bridge is 610m in the upstream.

10 SCR 6/27/201

6

725/1, Purna

river 7X45.7 OWG

Akola-

Kkandwa

Same as

proposed

New bridge in 20m downstream of

MG bridge with

same configurations

SN Rly. Date of

Approval Br.


Section Span

Approved

Remarks

11 NER/ RVNL

11/4/2016

Ganga /GCT 2x43.5+11x85.0,OWG(Rail cum Road Bridge)

Gazipur-Tarighat

Same as proposed

New line rail

cum road (2BG rail and 3 lane road) bridge at 45m upstream of existing road bridge. Span arrange is same

as road bridge. TAC was constituted by RVNL for this.

12 NR/ RVNL

11/22/2016

Rishikesh 10.x30.5, composite girder

Rishikesh-Karnaprayag

12X24.4, composite Girder

This bridge is for new line, initially proposed with span arrangement of 10X30.5m which

was revised on economical consideration as12X24.4m.

13 WCR 12/23/20

16 98/Sone 16x45.7 OWG mOWG Rewa-Sidhi

Same as

proposed

This bridge is for new line across Sone river at 12.5km

downstream and 11 km upstream

of existing road bridge.

14 ECoR 12/29/20

16 343/Tel river

20x30.5m composite

girder

Vizianagara

m-Titalgarh

Same as

proposed

In connection

with 3rd line with similar span arrangement of UP line(50m downstream) and DN line(20m downstream)

line bridges.

15 NR/ RVNL

1/30/2019

09/Alaknanda

15X30.5m non-standard Composite girder

Rishikesh-Karanprayag

As Proposed

Bridge for new line project.

Non-standard girder was approve on the basis of Site specific spectrum study.

16 NER/ RVNL

Compliance awaited

111/ Ganga

24X76.2m Non standard OWG accommodating two BG tracks

Jhusi-Daraganj

As Proposed

The bridge is planned for double line in between two

existing bridges in Upstream and Downstream 350m apart. The

alignment of proposed bridge is oblique and

span

SN Rly. Date of

Approval Br.


Section Span

Approved

Remarks

arrangement is

dissimilar w.r.t. both the bridges. RDSO has accepted the DBR on 17/01/2019

subjected to compliance of the suggestion to conduct

model study of the river and

two separate standard OWG for UP and DN lines.

17 NR/

RVNL

Under

scrutiny

08/Alaknand

a

3X90m Non-standard

OWG

Rishikesh-Karanprayag

As

Proposed

Bridge for new line project with Non-standard girder. DBR is under scrutiny.

18 Approval of Design Basis Report of Important Br. No 08 (3X90m) over River Alaknanda approved in connection with Rishikesh - Karanprayag new BG Rail line project, Northern Railway (June’2019).

19 Approval of Design Basis Report of main bridge of Rampur-Dumra-Tal-Rajendrapul Addition Bridge and south end approach for doubling (Oct’2019)

20 Approval of Design Basis Report of five important Railway Bridges approved in c/w Bhanupali-Bilaspur-Beri new B.G. Rail line, Northern Railway (Nov’2019).

21 Approval of Design Basis Report of Important Bridge No. 340 across Farakka Feeder Canal

approved. (Dec’2019).

22

DBR of Bridge No. 111 (Jhusi Bridge) of Varanasi Division of NER was approved by RDSO with observations vide RDSO letter No. CBS/DBR/NER/RVNL/Imp. Bridge no. 111 dated

17.01.2019. The matter was subsequently discussed in Railway Board and Railway Board, decided that fresh meeting of TAG for the bridge should be held having two more members as CPD(BW)-NER and ED/B&S-RDSO and TAG recommendations covering all issues should be submitted to Board for approval. The DBR has been scrutinized and it is found that the pertinent recommendations of TAG have been incorporated in the DBR. Further RDSO considers some modifications as necessary. In order to save the time, corrections have been made at RDSO itself and sent to RB on dated 26.02.2021. Further Railway Board advised NER

vide letter dated 07.07.2021 that DBR may be approved by CAO/C/NER.

23 Design Basis Report of Ganga Rail Bridge (Bridge No. 06) in connection with 125 km long Broad-Gauge New Rail Link between Rishikesh – Karanprayag, Northern Railway was

scrutinized and approval communicated to NR. (Dec’ 2020)

24 Design Basis Report of Important Railway Bridge No.15 (Gauchar Bridge) between Rishikesh – Karanprayag, Northern Railway was scrutinizedand approval communicated to NR. (Dec’ 2020)

bridges and structures directorate achievements: …

Documents