incheon bridge project - iowa state university · 2014-11-25 · approach bridge design check –...
TRANSCRIPT
![Page 1: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/1.jpg)
Incheon Bridge ProjectASCE Structural Engineering Conference - Iowa
10 November 2014
Andrew Yeoward – Global Director of Bridge Engineering, CH2M HILL
![Page 2: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/2.jpg)
Contents
• Introduction to the Project
• Construction
• Role of the Contractors Checking Engineer (CCE)
• Conclusions
![Page 3: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/3.jpg)
Introduction to Project
![Page 4: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/4.jpg)
Project Location
Incheon
![Page 5: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/5.jpg)
Project Location
Project Location
![Page 6: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/6.jpg)
Project Details
Cable Stayed Bridge
• 1480m total length
• 800m main span
• 74m high navigation
clearance
Approach Bridges
• 1778m total length
• 145m span lengths
Low Level Viaduct
• 8400m total length
• 50m span lengths
Crossing length 12.3 km
![Page 7: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/7.jpg)
Project Details
Project Statistics
– Total construction cost of €1.1 billion
– 52 month construction period
– Completion date of October 2009
Contractors Checking Engineer (CCE) Role
– CH2M HILL – Arup – Dasan JV
– CH2M HILL lead consultant
– Period of service March 2005 to December 2009
![Page 8: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/8.jpg)
Project OrganisationIBC – 51% AMEC and 49% the
City of Incheon Joint VentureSCJV – Samsung, Daelim, Daewoo,
Hanjin, Hanwha, Kumho and GS
Korean Expressway
Corporation (KEC)
AMEC
(Project
Management)
Incheon Bridge
Company Ltd
(Concessionaire)
Samsung
Construction
Joint Venture
(SCJV)
(Design and
Build Contractor)
Contractors
DesignersSeoyeong-Chodai-Cowi
Design Supervisor
(DS)Yooshin-Mott MacDonald
Construction
Supervisor (CS)Yooshin
Contractors
Checking
Engineer
CH2M HILL (lead)
Arup
Dasan
Contractual Relationship
Line of Communication
![Page 9: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/9.jpg)
Construction
![Page 10: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/10.jpg)
Site construction work area activities
![Page 11: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/11.jpg)
Project Location
Construction work area
![Page 12: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/12.jpg)
Site Construction Yard
Reinforcement storage
cutting and bending
Approach Bridge deck
precast segment
fabrication
50m viaduct deck
precasting shed
(1 unit every 2 days)
50m viaduct deck storage
and loading area
Approach Bridge pier-
head segment
precasting
CSB pylon precast
cross-beams
Prefabricated pile
reinforcement cage
storage
Site offices and staff
accommodation
Concrete batching
plant
![Page 13: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/13.jpg)
• Pile reinforcement cages
fabricated in 12m lengths
• Link reinforcement rolled onto
the pile cage
• Up to 3.0m diameter piles
• Accurate assembly allows the
used of threaded couplers to
join cages
Pile Cage Prefabrication
![Page 14: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/14.jpg)
Balanced Cantilever Deck Segments
• Short bed match casting
![Page 15: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/15.jpg)
Viaduct Deck Spans (50m)
• Target 1 span every 2 days
• 3 stage fabrication
• Reinforcement stage 1
• Internal formwork + complete reinforcement
• External formwork + stressing + concreting
• Longitudinally and transversely pre-tensioned
• 1400t each
![Page 16: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/16.jpg)
Construction activities on site
![Page 17: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/17.jpg)
Deep Water Piles
• Piles constructed in up to 25m
deep water
• Permanent steel casing to rock
level
• Pile diameters between 1.8m and
3.0m
![Page 18: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/18.jpg)
Shallow Water Piles
• 2km long steel temporary access
trestle
• Driven steel piles
• Access for construction of piles
and cross beams
![Page 19: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/19.jpg)
Pilecaps
• Pilecap precast formwork up to 1650t
lifted using 3000t floating crane
• Precast formwork sealed onto steel
pile casings - dry working area for
fabrication of pilecap reinforcement
• Temporary pilecap working enclosure
(upto 70mx25m in plan)
![Page 20: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/20.jpg)
Pilecaps
• Temporary enclosure for pilecap
concreting and curing
• Low level viaducts consist of pile bent
and in-situ cross beam below deck
level
![Page 21: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/21.jpg)
Viaduct Deck
• 1500t viaduct deck units
brought out to deep water
using 3000t floating crane
• Loaded onto multi-wheel
carrier
• Multi-wheel carrier moves
deck unit out to launching
girder operating in shallow
water area inaccessible to
floating crane
• Units lifted onto bearings
using launching gantry
![Page 22: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/22.jpg)
Viaduct Deck
![Page 23: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/23.jpg)
Viaduct Deck Construction
![Page 24: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/24.jpg)
Viaduct Deck
![Page 25: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/25.jpg)
Approach Bridge Balanced Cantilevers
• Precast pier head segments erected using
3000t floating crane
• Precast deck segments lifted from barges
using derrick cranes erected on the
cantilever
![Page 26: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/26.jpg)
Approach Bridge Balanced Cantilevers
![Page 27: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/27.jpg)
Approach Bridge Balanced Cantilevers
![Page 28: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/28.jpg)
Approach Bridge Balanced Cantilevers
![Page 29: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/29.jpg)
Approach Bridge Balanced Cantilevers
![Page 30: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/30.jpg)
Approach Bridge Balanced Cantilevers
![Page 31: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/31.jpg)
Approach Bridge Balanced Cantilevers
![Page 32: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/32.jpg)
Approach Bridge Balanced Cantilevers
![Page 33: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/33.jpg)
Approach Bridge Balanced Cantilevers
![Page 34: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/34.jpg)
Approach Bridge Balanced Cantilevers
![Page 35: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/35.jpg)
Cable Stayed Bridge80m
tie-down span
260m
back span 800m
Main span
• 225m high pylons
erected using self
climbing jump formwork
• Backspan erected with
80m long large segments
supported on temporary
piers
• Mainspan cantilevered out
in 15m segments
80m
tie-down span
260m
back span
![Page 36: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/36.jpg)
Pylon Construction
• Precast, post tensioned
crossbeams
• In-situ connection to pylon
legs
![Page 37: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/37.jpg)
Pylon Construction
![Page 38: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/38.jpg)
Deck Construction - Side Spans
![Page 39: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/39.jpg)
Deck Construction - Main Span
![Page 40: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/40.jpg)
Deck Construction - Main Span
![Page 41: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/41.jpg)
![Page 42: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/42.jpg)
Contractor’s checking engineer
![Page 43: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/43.jpg)
Role of the Contractor’s Checking Engineer
INPUTS
Independent Design Check of the Permanent Works
Independent Design Review of the Temporary Works
Review Technical Notes produced by others
Provide Technical Assistance to the Contractor
DELIVERABLES
Design Check Certificates (DCC) for permanent works
Design Review Certificates (DRC) for temporary works
Design Review Certificates (DRC) for technical reports
![Page 44: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/44.jpg)
Role of the Contractor’s Checking Engineer
Design Standards
2 key documents
• Project Performance Requirements (PPR)
- Written by the Ministry of Construction and Transportation
• Concessionaire’s Supplementary Requirements (CSR)
- Written by Incheon Bridge Company Ltd (IBC)
AASHTO LRFD (3rd Edition) & Korean Bridge Design Standards
– Interpretation of LRFD required – new document
• CCE produced many Technical Notes
– Design Manual produced by SCJV
![Page 45: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/45.jpg)
Role of the Contractor’s Checking Engineer
Cable Stayed Bridge Design Check
– 1480m long with 800m main span
– 33.4m wide steel orthotropic deck
– Pylon – reinforced concrete hollow section in diamond configuration
– Design tools – TDV RM2000, Oasys GSA, LARSA
– Fast track design & check – 12 weeks to start of piling
– Interaction with the Designer – agree loads before detailing re-bar
– Wind buffeting analysis, response spectrum seismic analysis
![Page 46: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/46.jpg)
Role of the Contractor’s Checking Engineer
Approach Bridge Design Check
– 145m long spans by balanced cantilever construction
– Built in pier tops – no bearings apart from end spans
– Design tools – LARSA, stage construction & time dependent effects
– REPUTE – non-linear analysis of pile groups in multiple soil strata
– Camber curves checked for casting yard segment alignment
– Sub-structure certified for construction before deck checked
Low Level Viaduct Design Check
– 50m spans built by the span-by-span method
– pre-tensioned 1400 tonne units erected by floating crane
– Majority of sub-structure on pile bents
– Represented the majority of the crossing
![Page 47: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/47.jpg)
Role of the Contractor’s Checking Engineer
Temporary Works
– Major Temporary Works (MTW)
• 2km long temporary jetty
• temporary back span piers for the CSB
• temporary struts to prop the inclined pylon legs
• self-launching overhead gantry for the viaduct
– Temporary Works (TW)
– Method Statements (MS)
– Independent design check for MTW’s
– Independent design review for TW’s and MS’s
![Page 48: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/48.jpg)
Role of the Contractor’s Checking Engineer
Technical Reports for Review
– Probabilistic Seismic Hazard Assessment
– Oceanographic Investigations
– Ground Investigations
– Pile Load Tests
– Wind Tunnel Testing
– Ship Impact Protection Test Programme and Results
– Scour Test Report
![Page 49: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/49.jpg)
Role of the Contractor’s Checking Engineer
• 16,700 drawings reviewed
• 140 ‘Design’ and ‘For Construction’ check certificates issued
• 149 review certificates issued
• 40 technical notes issued
![Page 50: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/50.jpg)
Role of the Contractor’s Checking Engineer
• Independent professional verification of design
• Wide ranging international input to design process
• Co-location advantageous
• ‘Fast-track’ partial certification
![Page 51: Incheon Bridge Project - Iowa State University · 2014-11-25 · Approach Bridge Design Check – 145m long spans by balanced cantilever construction – Built in pier tops –no](https://reader030.vdocuments.us/reader030/viewer/2022040606/5eb3747e84630d032b76c154/html5/thumbnails/51.jpg)
Incheon Bridge ProjectASCE Structural Engineering Conference - Iowa
10 November 2014
Andrew Yeoward – Global Director of Bridge Engineering, CH2M HILL