shay murtag precast beams
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Prestressed Concrete Beams
Technical ManualEdition 2
Contents
Table of Contents:
Introduction
U-Beam pg 1-5
MY-Beam pg 6-8
MYE-Beam pg 9-11
Y-Beam pg 12-14
YE-Beam pg 15-17
T-Beam pg 18-20
TY-Beam pg 21-23
TYE-Beam pg 24-26
M-Beam pg 27-29
UM-Beam pg 30-32
Box-Beam pg 33-35
W-Beam pg 36-38
Bridge Designers Checklist/Design Notes pg 40-41
Interactive Table of Contents. Click a title to go directly to that section.Return to the Table of Contents by clicking on the page again.
Contents
970
80
0 -
16
00
Typical applications:Medium and long span bridges.
Advantages:Provides a ready made edge detail.Provides easy provision for services.Suitable for skewed deck which experience high torsion.
pg 1-5U-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
970
30
0 -
60
0
Typical applications:Short and Medium span bridges and commercial developments eg. railway under bridge.
Advantages:Provides a closely assembled soffit.No need for formwork.Ideal for short to medium spans that require rapid construction.
pg 6-8MY-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
970
30
0 -
60
0
Typical applications:Complimentary edge beam to the MY Beam.
Advantages:The increased section properties can be used for a solid infill deck to support parpet loading.Accomodate the installation of precast parapets to solid infill decks.
pg 9-11MYE-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
750
70
0 -
14
00
Typical applications:Medium and long span bridges andcommercial development.
Advantages:There is easy access to the undersideof the structure, as the beams are spaced apart.
pg 12-14Y-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
750
70
0 -
14
00
Typical applications:This is a complimentary edge beamto the ‘Y’ beam.
Advantages:The YE beam offers increased section properties to support parpet loading.Can be used for either a solid infill deck or beam and slab construction.
pg 15-17YE-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
Contents
495
38
0 -
81
5
Typical applications:Short and medium span bridges andcommercial developments.
Advantages:Design provides for a closely assembled soffit.There is no need for formwork.
pg 18-20T-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
750
40
0 -
90
0
Typical applications:Short and medium span bridges,commercial developments, jetties and marine decks.
Advantages:Provides a closely assembled soffit and there is less insitu concrete.No need for formwork.
pg 21-23TY-Beam (available with rebate)
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
970
72
0 -
13
60
Typical applications:Provides voided bridge deck for medium and long spanroad bridge construction.
Advantages:Closed soffit to underside ideal for pseudo-boxtype construction.
pg 27-29M-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
970
72
0 -
13
60
Typical applications:Complimentary edge beam to the ‘M’ beam.
Advantages:Provides a clean vertical face with a variety of finishesalong with a channel void for incorporation of services.
pg 30-32UM-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
750
40
0 -
90
0
Typical applications:This beam is a complimentary edge beam to the ‘TY’ beam.
Advantages:Can be used for a solid infill deck. The TYE beam offers increasedsection properties to support parpet loading.
pg 24-26TYE-Beam (available with rebate)
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38Span Range (in metres)
1510
80
0 -
23
00
Typical applications:Medium and long span bridges.
Advantages:Provides a ready made edge detail.Provides easy provision for services.Suitable for skewed deck which experience high torsion.
pg 36-38W-Beam
Span Range
(in metres)
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 38 39 40 41 42
Bridge Designers Checklist/Design Notes pg 40-41
495/750/970
70
0 -
80
0
Typical applications:Short to medium span bridges.Ideal for use over busy railway lines.
Advantages:Provides a quick, safeworking platform.
pg 33-35Box-Beam
Span Range (in metres) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
Contents
Introduction
For over forty years Shay Murtagh Precast has been to the forefront ofthe civil engineering industry. We are industry specialists in the design andmanufacture of precast pre-stressed concrete products and our productinclusions are to Utility, Rail, Infrastructure and Commercial markets.
We believe our business is bespoke. We value each project individually. Our working partners demand the highest quality in product, reliability in service and confidence in team. All of which we deliver categorically. That successful basis has led us to work on a wide range of projects throughout the UK and Ireland with leading Main Contractors and Clients.
This is Edition Two of our Technical Manual for Pre-Stressed Concrete Beams. The first editiongave you a basis to some of our product solutions. This second edition incorporates more detail in response to suggestions from you the users, namely greater detail of the cross sectional dimensions and available strand locations for most beam types and the addition of span tables for Box Beams and W Beams. The popular Bridge Designers checklist has also been expanded to include more information on bridge bearings, concrete grade, the design assumptions used as the basis for the span tables and a new section on rail applications. This is working tool which in conjunction with our technical team can bring value engineering solutions to your project.
Contact us on: Technical@shaymurtagh.co.uk or Tel: 0844 202 0263
Full listing of Bridge Beams:
T-BeamsTY-BeamsMYE-Beams
MY-BeamsY-BeamsM-Beams
UM-BeamsU-BeamsYE-Beams
TYE-BeamsW BeamsBox Beams
1www.shaymurtagh.co.uk
TECHNICAL MANUAL
25
25
2525
40 245 40
360
165
270
210
40 245 40
970
920
16
0
25 3
0
Yc
x x
Y
Y
D
L1
L2
U-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffitType Depth
D
U1 800 479470 353.4 68.2 86.19 30.459 11.99 1195 520
U3 900 510460 398.4 84.39 106.27 42.335 12.76 1280 558
U5 1000 543840 444.8 102.49 127.91 56.898 13.60 1236 586
U7 1100 577220 491.7 121.93 150.83 74.168 14.43 1264 614
U8 1200 610600 539 142.68 174.99 94.315 15.27 1292 642
U9 1300 643980 586.5 164.69 200.36 117.51 16.10 1320 670
U10 1400 677360 634.3 187.93 226.9 143.91 16.93 1348 698
U11 1500 710740 682.2 212.4 254.6 173.69 17.77 1376 726
U12 1600 744120 730.4 238.07 283.45 207.03 18.60 1404 754
A
(kN/m)
L1 L2Yc Z t
mm 2
(mm x 10 )3 6
(mm)(mm)(mm) (mm)(mm x 10 )4 9
(mm x 10 )3 6
Zb I xx
Area Section ModulusSecond Moment
of Area Self weight/mTop of beamdimensions
U3 to U12 Beam Section Properties
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
U1
Metres 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
U3
U5
U7
U8
U9
U10
U11
U12
Blue = 2.0mc/c Yellow = 3.0mc/c *See Design Notes For Loading Assumptions pg 40-41Red = 2.5mc/c
U-Beam Span Table Shay Murtagh Precast
2 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U1 Beam Section Properties
x x
Y
Y
40
25
80
0
Yc
25
16
0
25
25
22525
363
32
L1
L2 225
210
274
166
2525 920
4025
30
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
U-Beam Typical Details Shay Murtagh Precast
SPAN 12M TO 35.5M
Typical Arrangement of DeckSection with Cantilever
U12@1600mmU11@1500mmU10@1400mmU9@1300mmU8@1200mmU7@1100mmU5@1000mmU3@900mmU1@800mm
200mm typical
Bridge Parapet Upstand
1500mm to 3000mmcentres
Insitu slabC32/40typically
25mm G.R.C.or 75mm permanent
formwork
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
U7 - Typical Anchorage of Lifting Hooks
90
60
45
15
60
20
Typical Section Through Bridge
PrestressedConcreteU-Beam
Threaded BarCast intoU-Beam
G.R.C.or75mmpermanentformworkpanels
1 No. 120 widex 120 deep
holes throughwebs at
abutment & pier ends270mm to centrelinefrom soffit
1 No. 120 widex 120 deep
holes throughwebs at
abutment & pier ends270mm to centrelinefrom soffit
1 No. 120 widex 120 deep
holes throughwebs at
abutment & pier ends270mm to centrelinefrom soffit
50mm Min. Bearing
Precast ConcreteCantilever Units200mm
InsituConcreteDeck Slab
100 x 60 RHSPrecast ConcreteCantilever Units
20
Precast ConcreteCantilevers Detail
Typical Section
InsituConcreteStitch
50mm Min. Bearing
100 x 60 RHS
200mm InsituConcrete DeckSlab
Threaded BarCast intoU-Beam
PrestressedConcreteBeam
Single crane liftingfor lifting both ends
Tandum crane liftingfor lifting both ends
Superstrandto be used for lifting
Superstrand tobe used for lifting
D-shackle to beused when liftingon siteCrosby shackle screw pin-209Nominal size 50mmWorking load limit=35 tonnes
Tandum crane lifting
Single crane lifting
Lift
ing
Slin
g
Lift
ing
Slin
g
11
00
91
5821
614
325 325
U7 SectionShowing Dwarf Wall
50mm Min. Bearing
U-Beam Typical Details Shay Murtagh Precast
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Arrangement of Deck Section with Cantilever
1500 to 3000
centres
200mm typical
200mm typical
Permanent Formwork
insitu slab C32/40 typically
Typical Arrangement of Deck Section with Cantilever(Increase in Formwork Depth)
Standard Section of PossibleReinforcement for U7 Beam
1500 to 3000mm
75
centres
insitu slab C32/40 typically
IncreasedFormworkThicknessBetweenBeams as
centres increase
U-Beam Typical Details Shay Murtagh Precast
U-Beam Possible Strand Positions
5www.shaymurtagh.co.uk
25
if F
orm
wo
rk s
pan
1
m7
5 if
Fo
rmw
ork
sp
an
1m
40 245 40
970
30
36
08
25
16
00
15
0
50
4 @ 1530
4 @ 1380
2 @ 1280 2 @ 12602 @ 1180
2 @ 11302 @ 1080
2 @ 10302 @ 980
2 @ 9302 @ 880
2 @ 8302 @ 780
2 @ 7302 @ 680
2 @ 6302 @ 580
2 @ 5302 @ 480
2 @ 340
2 @ 430
8 @ 21010 @ 16018 @ 11018 @ 60
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
7
TECHNICAL MANUAL
MY-Beam properties Shay Murtagh PrecastHeight ofcentroidabovesoffit
Distance tocentroid
from edgeof flangeType Depth
(mm)
D
MY1 300 170000 111.7 485 6.39 10.78 1.2033 4.25 360
MY2 350 188500 132.6 485 9.05 14.84 1.9681 4.71 380
MY3 400 208000 155.4 485 12.31 19.39 3.0123 5.20 400
MY4 450 228500 179.6 485 16.18 24.37 4.3753 5.71 420
MY5 500 250000 205 485 20.67 29.74 6.0972 6.25 440
MY6 550 272000 230.9 485 25.61 35.4 8.1425 6.80 440
MY7 600 294000 256.6 485 30.83 41.26 10.587 7.35 440
A
(kN/m)
WfYc Xc
mm 2
(mm x 10 ) (mm)(mm)(mm)3 6
(mm x 10 )3 6
(mm x 10 )4 9
Z1 Zb l xx
Area Section Modulus
SecondMomentof Area Self weight/m
Top of beamdimensions
485
125
970
30025
400
75
25
Y
xx
Y
YcWf
970
102 102
920
60
0
57 45 45 57
3 No @ 5503 No @ 5003 No @ 4503 No @ 4003 No @ 3503 No @ 3001 No @ 250
5 No @ 10517 No @ 60
Typical link arrangement and possible strand positions
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
SPAN 4M TO 19M
Cast in Services
Parapet unitwith variousformlinerfinishes available
Stone/brick finishcan be applied toinside face on request
Edge Beam & parapetbatched together in factory
985mm centres(typical)Insitu Concrete
Site Pour
TECHNICAL MANUAL
Typical MY deck section with parapets*Individual MY Beam Flanges can becurtailed to suit deck widths
MY7@600mmMY6@550mmMY5@500mmMY4@450mmMY3@400mmMY2@350mmMY1@300mm
MY1
Metres
MY2
MY3
MY4
MY5
MY6
MY7
Beams placed individually Beams batched and placed in pairs/triples *See Design Notes For Loading Assumptions pg 40-41
MY-Beam Span Table Shay Murtagh Precast 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Anchorage of Lifting Hooks
Parpet to MY Beam Detail MY-Beam batched in pairs
Standard Batched MY Beam to MY Beam Detail
Standard section of
Typical Shear Reinforcement
for MY3 beam
Standard MY3
Beam Section
Typical Deck Section with Parapets Part Elevation
970
920
400
40
0
700 700
200
300
340
Ducted Services
Standard OPE spaced at 700mm c/cfor transverse reinforcement
Formliner Finish available tooutside of parapet faces
Finish tooutside ofparapet facesavailable
Stone/Brick cladding finishavailable to inside face
Ducted Services
Edge Beam &Parapet unitbatched togetherin factory
The width of the beam flangesmay be reduced to suit the
overall deck width
BIO Typical
In-SituConcrete Stitch
C32/40on site
MY-Beam Typical Details Shay Murtagh Precast
Strands to besplayed in beamto provideanchorage
D-shackle to beused when liftingon site“Crosby” shackle, screw Pin-209Nominal size 50mmWorking load limit-35 tonnes
Crane Lifting
Site Lifting
Formliner Finish availableto external face
Stone/Brickcladding finishavailable toinside face
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Lift
ing
Slin
g
Liftin
g Sli
ng
Tandum Crane Lifting
Single Crane Lifting
90
45
15
665
60
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
MYE-Beam properties Shay Murtagh PrecastHeight ofcentroidabovesoffit
Distance tocentroid
fromvertical faceType Depth
(mm)
D
MYE1 300 230200 136.0 399.1 10.77 12.99 1.7667 5.76 665
MYE2 350 263700 160.0 391.0 14.84 17.61 2.8186 6.59 675
MYE3 400 297700 184.6 385.2 19.58 22.85 4.2180 7.44 685
MYE4 450 332200 209.6 381.0 25.01 28.69 6.0128 8.31 695
MYE5 500 367200 234.9 378.0 31.12 35.13 8.2517 9.18 705
MYE6 550 402400 260.3 375.8 37.85 42.13 10.9660 10.06 705
MYE7 600 437700 285.6 373.9 42.12 49.65 14.1830 10.94 705
A
(kN/m)
WfYc Xc
mm 2
(mm x 10 ) (mm)(mm)(mm)3 6
(mm x 10 )3 6
(mm x 10 )4 9
Z1 Zb l xx
Area Section Modulus
SecondMomentof Area Self weight/m
Top of beamdimensions
Yc
Xc970
635
400 max
75
25
25
Y
Y
xx
Wf6
00
920970
102 102 102 102 1026 No @ 5506 No @ 5006 No @ 4506 No @ 4006 No @ 3506 No @ 3005 No @ 250
11 No @ 10517 No @ 60
Typical link arrangement and possible strand positions
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical MY & MYE Deck Section
SPAN 4m TO 19m
125mmtypical
insitu slab C32/40 typically
MYE7@600mmMYE6@550mmMYE5@500mmMYE4@450mmMYE3@400mmMYE2@350mmMYE1@300mm
MYE1
Metres
MYE2
MYE3
MYE4
MYE5
MYE6
MYE7
MYE-Beam Span Table Shay Murtagh Precast
Beams placed individually Beams batched and placed in pairs/triples *See Design Notes For Loading Assumptions pg 40-41
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
125mmtypical
700
40
0
25
01
25
25
25
25
75
25
2525
20290
3
285 685
970
700
200
infill slab C32/40 typically
Part Elevation (MYE Beam)
Typical Shear Links & Transverse
couplers/bars for MYE Beam
Standard MYE3
Beam Section
Couplers/BarsSpaced at 700mm c/c
Site Lifting
D-Shackle to beused when liftingon site“Crosby” Shackle, Screw Pin-209Nominal Size 50mmWorking Load Limit = 35 Tonnes
SuperstrandTo be used for lifting
Lift
ing
Slin
g
Liftin
g Sli
ng
Tandum Crane Lifting
Single Crane Lifting
90
45
15
665
60
Typical MY & MYE Deck Section (Deck slab & infill concrete)
Typical Anchorage of Lifting Hooks
MYE-Beam Typical Details Shay Murtagh Precast
B10 Typical
Couplers/Barsspaced at 700mm c/c
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Y-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffitType Depth
(mm x 10 )
D
Y1 700 310140 255 24.88 43.42 11.073 7.75 198
Y2 800 340830 298.4 35.07 58.96 17.593 8.52 227
Y3 900 374420 346.8 47.95 76.51 26.53 9.36 256
Y4 1000 410880 399.3 63.63 95.72 38.22 10.27 285
Y5 1100 450230 455.2 82.19 116.4 52.99 11.26 313
Y6 1200 492460 514 103.73 138.45 71.16 12.31 342
Y7 1300 537580 575 128.35 161.83 93.052 13.44 371
Y8 1400 585580 637.8 156.12 186.56 118.99 14.64 400
A
(kN/m)
WfYc Z t
3 mm
2 6(mm x 10 ) (mm)(mm)(mm)
3 6(mm x 10 )
4 9
Zb I xx
Area Section ModulusSecond Moment
of Area Self weight/mTop of beamdimensions
WfWf
Y8 @ 1400 mmY7 @ 1300 mmY6 @ 1200 mmY5 @ 1100 mmY4 @ 1000 mmY3 @ 900 mmY2 @ 800 mmY1 @ 700 mm
Y8 Wf = 400 mmY7 Wf = 371 mmY6 Wf = 342 mmY5 Wf = 313 mmY4 Wf = 285 mmY3 Wf = 256 mmY2 Wf = 227 mmY1 Wf = 198 mmx x
Y
Y
Yc
50
50
40 40
750 750
Y-Beam Section Properties
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
SPAN 12M TO 31M
Typical Deck Section
Y8@1400mm
Y7@1300mm
Y6@1200mm
Y5@1100mm
Y4@1000mm
Y3@900mm
Y2@800mm
Y1@700mm
See Span Tableabove centres1000-2000mm
Insitu slab C32/40 typically200mmtypical
Y1
Metres
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Blue = 1.0mc/c Red = 2mc/c
Y-Beam Span Table Shay Murtagh Precast
*See Design Notes For Loading Assumptions pg 40-41
3211 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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25mm G.R.C.permanent formworkif Formwork span 1m;75mm permanent Formworkif Formwork span 1m
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
centres
25 x 25 chamfers
50x50RebateTypical
insitu slab C32/40typically
Permanent Formwork(G.R.C. or Precast Concrete) Scabbled Finish
to beam end
200mm typical
Typical Deck Section Part Elevation (Beam End)
Standard Y6Beam Section
Standard Section ofTypical Shear Reinforcement
for Y6 Beam
Typical Strand Layoutfor Y6 Beam
50
71
0
12
00
12
00
10
0
400 min
16
0
11
0
60
10
00
10
0
R100R100
17
52
51
40
50
5
160
700
25 25
50320
100 50 50 75 50 5050 50 75 50 50 100
Typical Anchorage of Lifting Hooks
D-Shackle to beused when liftingonm site‘Crosby’ shackle, screw Pin-209Nominal Size 50mmWorking Load Limit=35 Tonnes
Strands to besplayed in beamto provideanchorage
Tandum Crane Lifting
Single Crane Lifting
90
60
60
15
45
60
Tandum Crane Lifting Single Crane Lifting
Lift
ing
Slin
g
Liftin
g Sli
ng
Y-Beam Typical Details Shay Murtagh Precast
See Y-Beam Span Tablepage 13 for centres
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
YE-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffit
Distance tocentroid
fromvertical faceType Depth
(mm)
D
YE1 700 417260 315 309.5 44.43 54.31 17.106 10.43 434
YE2 800 470100 383.4 304.4 59.28 71.21 25.879 11.75 448
YE3 900 524400 413.4 300.9 76.61 90.18 37.278 13.11 463
YE4 1000 580130 464.6 298.7 96.45 111.15 51.641 14.50 477
YE5 1100 637300 518.8 297.5 118.85 134.13 69.318 15.93 492
YE6 1200 695920 569.8 297.1 143.36 159.1 90.659 17.40 506
YE7 1300 755880 623.6 297.3 171.55 186.08 116.04 18.90 521
YE8 1400 817480 678 298 201.98 215.1 145.83 20.44 535
A
(kN/m)
WfYc Xc
mm 2
(mm x 10 ) (mm)(mm)(mm)3 6
(mm x 10 )3 6
(mm x 10 )4 9
Z t Zb
Area
SecondMomentof Area Self weight/mSection Modulus
Top of Flange
YE8 @ 1400 mm
YE7 @ 1300 mm
YE6 @ 1200 mm
YE5 @ 1100 mm
YE4 @ 1000 mm
YE3 @ 900 mm
YE2 @ 800 mm
YE1 @ 700 mm
YE8 Wf = 535 mm
YE7 Wf = 521 mm
YE6 Wf = 506 mm
YE5 Wf = 492 mm
YE4 Wf = 477 mm
YE3 Wf = 463 mm
YE2 Wf = 448 mm
YE1 Wf = 434 mm x x
Y
Y
Yc
Xc
Wf Wf50
5050
25 25
700
15www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
SPAN 12M TO 31M
Typical Deck Arrangement
YE8@1400mm
YE7@1300mm
YE6@1200mm
YE5@1100mm
YE4@1000mm
YE3@900mm
YE2@800mm
YE1@700mm
See Span Tableabove for centres
Insitu slab C32/40 typically200mmtypical
Bridge Parapet
YE1
Metres
YE2
YE3
YE4
YE5
YE6
YE7
YE8
Blue = 1.0mc/c Red = 2mc/c
YE-Beam Span Table Shay Murtagh Precast
*See Design Notes For Loading Assumptions pg 40-41
11 323130292827262524232221201918171615141312
16 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
25mm G.R.C.permanent formworkif Formwork span 1m;75mm permanent Formworkif Formwork span 1m
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Anchorage of Lifting Hooks
Permanent Formwork(G.R.C. or Precast Concretedepending on beam centres)
centres(See Span Table)
insitu slab C32/40 typically200mm typical
Typical Deck Section
Standard Section of
Typical Shear reinforcement
for YE6 BeamStandard YE6
Beam Section
Typical Strand Layout
for YE6 Beam
53550
12
00
90
60
60
15
45
60
50
25
25 25
700
17
51
40
71
0
5
165
R100
85
25
Tandum Crane LiftingD-Shackle to beused when liftingon site‘Crosby’ shackle, screw Pin-209Nominal Size 50mmWorking Load Limit=35 Tonnes
Superstrandto be used for lifting
Single Crane Lifting
Lift
ing
Slin
g
Liftin
g Sli
ng
12
00
21
0
16
01
10
60
10
01
00
100 50 50 75 50 5050 50 75 50 50 100
90
0
50x50RebateTypical
Rebateavailable onexternalface
YE Beam Typical Details Shay Murtagh Precast
BridgeParapet
17www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
T-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffit
Locationof Centroid
frombeam edgeType Depth
D
T1 380 97385 139.2 247.5 5.11 8.84 1.2306 2.43
T2 420 105580 159.4 247.5 6.70 10.95 1.7462 2.64
T3 535 114160 196.1 247.5 9.57 16.35 3.2426 2.85
T4 575 122360 220.2 247.5 11.92 19.21 4.2290 3.06
T5 615 130560 243.7 247.5 14.30 21.79 5.3098 3.26
T6 655 138760 266.8 247.5 16.73 24.33 6.4921 3.47
T7 695 146960 289.6 247.5 19.20 26.87 7.7831 3.67
T8 735 155160 312.1 247.5 21.73 29.45 9.1896 3.88
T9 775 163360 334.3 247.5 24.32 32.06 10.7190 4.08
T10 815 171560 356.3 247.5 26.99 34.73 12.3770 4.29
A
(kN / m)
Y c
mm 2
(mm)
Xc
(mm)(mm) (mm x 10 )3 6
(mm x 10 )4 9
Z1
(mmx 10 )3 6
Zb Ixx
Area Section Modulus
SecondMomentof Area
Self weight per m
xx
Y
Y
Yc
Xc
T-Beam Section Properties
18 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
Typical Deck Section
125-150mm topping (typical)
Infill C32/40Typically
13 Joint 508mmCentres
TransverseReinforcement
TECHNICAL MANUAL
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T-Beam Span Table Shay Murtagh Precast
*See Design Notes For Loading Assumptions pg 40-41Beam Centres: 508mm
Metres 1 18171615141312111098765432
T10@815mmT9@775mmT8@735mmT7@696mmT6@655mmT5@615mmT4@575mmT3@535mm
T2@420mmT1@380mm
205
33
5 M
AX
50
90
50
5050
6
25495
25
105
90
24
05
07
52
54
0
SPAN 5M TO 17M
19www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Anchorage of Lifting Hooks
D-Shackle to beused when liftingon-site‘Crosby’ shackle, screw Pin-209Nominal Size 50mmWorking Load Limit=35 Tonnes
Superstrand to beused for liftingspecified characteristic
Lift
ing
Slin
g
Lift
ing
Slin
g
Standard T10
Beam Section
Part Elevation (Beam End)Typical Deck Section
60
60
90
15
45
Tandum Crane Lifting
25 x 25 chamfers
Single Crane Lifting
73
81
5
24
0
33
5
205
495
Standard Section of
Typical Reinforcement
for T10 Beam
610610 400 min
50
50
40
25
25
508 centres
TransverseReinforcement
Infill C32/40Typically
125-150mm insitu deck (typical) with infill concrete between beams
13 Joint
T Beam Typical Details Shay Murtagh Precast
20 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
40
Typical Strand Layout
for T10 Beam
Strands @ 45mm c/c
Stra
nd
s @
40
mm
c/c
72.5
102.5
45
15
0
58
min
65
Max
72
min
76
Max
OPE for TransverseReinforcement@ 610C/C
50
102.5
72.5
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
TY-Beam properties Shay Murtagh Precast
Section ModulusType Depth
D
TY1 400 188790 145.5 7.69 13.46 1.9581 4.72 217.5
TY2 450 200170 161.4 9.71 17.35 2.8011 5.00 237.7
TY3 500 212560 179.7 12.35 22 3.9538 5.31 258
TY4 550 225970 200.2 15.62 27.28 5.463 5.65 278.3
TY5 600 240390 222.7 19.54 33.1 7.373 6.01 298.6
TY6 650 255830 247 24.14 39.38 9.7266 6.40 318.9
TY7 700 272280 272.9 29.42 46.04 12.565 6.81 339.2
TY8 750 289740 300.2 35.41 53.06 15.926 7.24 359.4
TY9 800 308220 328.6 42.11 60.4 19.851 7.71 379.7
TY10 850 327710 358.2 49.56 68.05 24.375 8.19 400.1
TY11 900 348220 388.6 57.76 76.01 29.539 8.71 420
A Wf
(mm)
Yc
mm 2
(mm)
Zt
(mm) (mm x 10 )3 6
(mm x 10 )3 6
Zb
(mmx 10 )4 9
I xx
(kN/m)
AreaSecond Moment
of Area
Height ofCentroid
above Soffit Self-Weight Top of Flange
x x
Y
Y
Yc
Wf
TY-Beam Section Properties
21www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
SPAN 4.5M TO 17.5M
TECHNICAL MANUAL
Typical Deck Arrangement
TY11@900TY10@850TY9@800TY8@750TY7@700TY6@650TY5@600TY4@550TY3@500TY2@450TY1@400
125 topping(typical)
See Section Properties
Infill C32/40typically
TransverseReinforcement
765 centres (typical)
Infill Concrete
TransverseReinforcement
TY1
TY2
TY3
TY4
TY5
TY6
TY7
TY8
TY9
TY10
TY11
TY-Beam Span Table Shay Murtagh Precast
*See Design Notes For Loading Assumptions pg 40-41Beam Centres: 765mm
1Metres 1918171615141312111098765432
Wf
22 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
58
0
90
0
40
40
40
40
180 60
OPE for TransverseReinforcement@ 610mm Centres
15
40 50 44 56 50 45 7575 45 50 56 44 50 40
15
180
60
50
420
80
13
5
5
25
25
11
0
10
5
D-Shackle to beused when liftingon-site‘Crosby’ shackle, screw Pin-209Nominal Size 50mmWorking Load Limit=35 Tonnes
Superstrand to beused for liftingspecified characteristic
Lift
ing
Slin
g
Lift
ing
Slin
g
60
90
15
45
60Tandum Crane Lifting
Rebate Optional
Single Crane Lifting
Typical Anchorage of Lifting Hooks
Standard TY11
Beam Section
Typical Strand
Layout for
TY11 Beam
Standard Section of
Typical Shear Reinforcement
For TY11 Beam
Part Elevation (Beam End)Typical Deck Section
Stra
nd
s @
50
mm
c/c
400 min
280
185
285
610610
TransverseReinforcement
Infill C32/40mmTypically
125mm topping (typical)
15 Joint 765 Centres
TY-Beam Typical Details Shay Murtagh Precast
750
23www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
x x
Y
Y
Yc
Xc
Wf
TYE-Beam properties Shay Murtagh Precast
Section ModulusType Depth
D
TYE1 400 244080 179.2 317.3 14.23 17.54 3.142 6.10 483.7
TYE2 450 268520 201.6 310.6 18.07 22.28 4.4905 6.71 493.9
TYE3 500 293470 224.8 305.4 22.54 27.6 6.2035 7.34 504
TYE4 550 318920 248.8 301.4 27.62 33.45 8.3207 7.97 514.2
TYE5 600 344880 273.3 298.2 33.31 39.81 10.882 8.62 524.3
TYE6 650 371350 298.4 295.8 39.62 46.68 13.929 9.28 534.4
TYE7 700 398330 323.9 294.1 46.54 54.04 17.503 9.96 544.6
TYE8 750 425810 349.8 292.8 54.09 61.88 21.646 10.65 554.7
TYE9 800 453800 376 292 62.27 70.21 20.401 11.35 564.9
TYE10 850 482290 402.6 291.6 71.1 79.03 31.814 12.06 575
TYE11 900 511300 429.4 291.5 80.59 88.33 37.928 12.78 585
A
(mm)
WfYc
mm 2
(mm)
Xc
(mm)
Zt
(mm) (mm x 10 )3 6
Zb
(mmx 10 )4 9
1xx
(kN/m)
AreaSecond Moment
of Area Self-Weight
Height ofCentroid
above Soffit
Distance tocentroid
fromvertical face
Top of Flange
TYE-Beam Section Properties
24 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
TYE11@900TYE10@850TYE9@800TYE8@750TYE7@700TYE@650TYE5@600TYE4@550TYE3@500TYE2@450TYE1@400
Typical Deck Arrangement
125-150mmtopping(typical)
Bridge Parapet
Infill C32/40typically
765
centres
SPAN 4.5M TO 17.5M
5 6 7 8 9 10 11 12 13 14 15 16 17 18 191Metres
TYE1
TYE2
TYE3
TYE4
TYE5
TYE6
TYE7
TYE8
TYE9
TYE10
2 3 4
TYE-Beam Span Table Shay Murtagh Precast
TYE11
*See Design Notes For Loading Assumptions pg 40-41Beam Centres: 765mm
25www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Deck Section
Standard TYE11
Beam Section
Standard Section of
Typical Shear Reinforcement
for TYE11 beam
Typical Anchorage of Lifting Hooks
Typical Strand
Layout for
TYE11 beam
Part Elevation (Beam End)
Centres765mm(Typical)
600 centres 400 min
585
468
518
750
90
0
58
08
01
10
25
10
5
90
0
700
6565
15 15
585
150
60 60
135
750
87
56
05
0
TransverseReinforcement
InfillC32/40typically
125 topping(typical)
Stra
nd
s @
40
mm
c/c
Stra
nd
s @
50
mm
c/c
Strands @ 45-50mm c/c
D-Shackle to beused when liftingon-site‘Crosby’ shackle, screw Pin-209Nominal Size 50mmWorking Load Limit=35 Tonnes
Superstrand to beused for lifting
Tandum Crane Lifting
Lift
ing
Slin
g
Liftin
g Sl
ing
Single Crane Lifting
60
90
60
45
60
15
TYE-Beam Typical Details Shay Murtagh Precast
2626 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
M-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffitType Depth
D A
(kN/m)
Yc
mm 2
(mm x 10 )(mm)(mm)3 6
(mm x 10 )3 6
Z t Zb
Area Section Modulus Self weight/m
M2 720 314600 266 35.37 60.36 7.87
M3 800 346600 310 46.6 73.65 8.67
M4 880 378600 354 58.37 86.73 9.47
M5 960 353000 357 58.92 99.52 8.83
M6 1040 384999 410 74.94 115.15 9.63
M7 1120 417000 460 90.95 130.49 10.43
M8 1200 391399 455 86.87 142.23 9.79
M9 1280 423399 513 107.45 160.66 10.59
M10 1360 455399 569 127.97 177.9 11.39
xx
y
y
Yc
M-Beam Section Properties
27www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Deck Arrangement
SPAN 16M TO 29M
M10 @ 1360
M9 @ 1280
M8 @ 1200
M7 @ 1120
M6 @ 1040
M5 @ 960
M4 @ 880
M3 @ 800
M2 @ 720
200mmtypical
Centres (See span table)
Insitu slab C32/40 typically
G.R.C. PermanentFormwork
Metres 3012 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
M2
M3
M4
M5
M6
M7
M8
M9
M10
M-Beam Span Table Shay Murtagh Precast
*See Design Notes For Loading Assumptions pg 40-41Beam Centres: 1000mm
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Tandum Crane Lifting
Superstrand to be usedfor lifting
D-Shackle to beused when lifting on site.‘Crosby’ shackle. Screw Pin-209Nominal Size 50mmWorking load limit = 35 tonnes
Single Crane Lifting
Lift
ing
Slin
g
Liftin
g Sl
ing
90
45
60
15
2 No @ 12802 No @ 12302 No @ 11802 No @ 11302 No @ 10802 No @ 1030
2 No @ 9302 No @ 8802 No @ 8302 No @ 7802 No @ 7302 No @ 6802 No @ 6302 No @ 5802 No @ 5302 No @ 4802 No @ 4302 No @ 3802 No @ 330
200mm typical
400minCentres
1000mm30 Joint
50 50 50 75 50 50 50 109109 50 50 50 75 50 50 50
175 17550
50
60
50
400 50
50
50
60
76
0
13
60
80
50
25 25970
160
320
315
80
10
13
52
5
20
0
300
160
120
Insitu slab C32/40 typically
G.R.C. Permanent Formwork Scabbled Finishto beam end
60
M-Beam Typical Details Shay Murtagh Precast
Typical Anchorage of Lifting Hooks
Standard M10Beam Section
Typical Deck Section Part Elevation (Beam end)
Standard Section ofTypical reinforcement
for M10 beam
Typical strandlayout forM10 beam
4 No @ 16014 No @ 11015 No @ 60
29www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
UM-Beam properties Shay Murtagh Precast Height ofcentroidabovesoffitType Depth
D A
(kN/m)
Yc
mm 2
(mm x 10 )(mm)(mm)3 6
(mm x 10 ) (mm)3 6
Z t Zb c
Area Section Modulus Self weight/m
X
Distance of centroidfrom vertical face
UM2 720 361767 261.5 32.73 57.38 9.05 437
UM3 800 387049 293 40.51 70.1 9.68 434
UM4 880 412144 325 49.03 83.73 10.31 431
UM5 960 437053 358 58.31 98.06 10.93 428
UM6 1040 461775 392 68.34 112.98 11.3 426
UM7 1120 486311 426 79.01 128.71 12.14 424
UM8 1200 510660 460 90.28 145.24 12.77 422
UM9 1280 534823 494.5 102.21 162.24 13.77 420
UM10 1360 558800 529 114.71 180.21 13.97 419
y
y
xx
Yc
Xc
UM10 1360UM9 1280UM8 1200UM7 1120UM6 1040UM5 960UM4 850UM3 800UM3 720
UM-Beam Section Properties
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U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
www.shaymurtagh.co.uk
*See Design Notes For Loading Assumptions pg 40-41
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
200mm Typical
400 min
Insitu slab C32/40 typically
G.R.C. Permanent Formwork Scabbled Finish to Beam End
Centres (see span table)
60
90
45
60
15
Tandum crane lifting Single crane lifting
D-shackle to beused when liftingon siteCrosby shackle screw pin-209Nominal size 50mmWorking load limit=35 tonnes
Superstrandto be usedfor lifting
Lift
ing
Slin
g
Lift
ing
Slin
g
Typical Deck Section Part Elevation (Beam end)
Standard Section ofTypical Shear Reinforcement
for UM9 beam
Possible StrandLayout forUM9 beam
Standard UM9beam Section
25
80
25 25
25
80
25
40
80
80
135
440
310
920
970
65
25
50
50
12
80
12
05
95
0
25 25
101 101468
UM-Beam Typical Details Shay Murtagh Precast
B12 20
53
53
96 98
98
58
58
2No@1050
2No@1000
2No@680
2No@630
2No @160
16No@110
17No@60
135 45 50 50 50 50 50 50 75 50 50 50 50 50 50 50 65
32 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
Typical Anchorage of Lifting Hooks
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Box-Beam properties 495mm Wide Shay Murtagh Precast
DepthType
D A Yc Z t
(kN/m)
Zb
(mm) (mm) (mm )2
(mm x 10 )3 6
(mm x 10 )3 6
AreaHeight of centroid
above soffitSection Modulus Self weight / m
SD1(1) 300
SD2(1) 400
SD3(1) 500
SD4(1) 600
SD5(1) 700
SD6(1) 800
127625
168125
208625
249125
289625
330125
145
194
244
294
343
393
6.33
11.23
17.5
25.11
34.08
44.4
6.79
11.9
18.38
26.2
33.38
45.91
3.19
4.2
5.22
6.23
7.24
8.25
Box-Beam properties 750mm Wide Shay Murtagh Precast
DepthType
D A Yc Z t
(kN/m)
Zb
(mm) (mm) (mm )2
(mm x 10 )3 6
(mm x 10 )3 6
AreaHeight of centroid
above soffitSection Modulus Self weight / m
SD1(2) 300
SD2(2) 400
SD3(2) 500
SD4(2) 600
SD5(2) 700
SD6(2) 800
204125
270125
336125
402125
468125
534125
147
196
246
296
346
396
10.17
18.05
28.13
40.43
54.92
71.62
10.62
18.71
29
41.5
56.21
73.11
5.1
6.75
8.4
10.05
11.7
13.35
Box-Beam properties 970mm Wide Shay Murtagh Precast
DepthType
D A Yc Z t
(kN/m)
Zb
(mm) (mm) (mm )2
(mm x 10 )3 6
(mm x 10 )3 6
AreaHeight of centroid
above soffitSection Modulus Self weight / m
SD1(3) 300
SD2(3) 400
SD3(3) 500
SD4(3) 600
SD5(3) 700
SD6(3) 800
270125
358125
446125
534125
622125
710125
148
197
247
297
347
397
13.47
23.92
37.3
53.63
72.9
95.09
13.92
24.58
38.17
54.7
74.17
96.58
6.75
8.95
11.15
13.35
15.55
17.75
33www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Box-Beam Typical Details Shay Murtagh Precast
34 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
Typical Deck Arrangement
Typical Deck Section
SPAN 3M TO 22.5M
125mm typical
Bridge Parapet
495, 750, or 970 preferred
30
0m
m t
o 8
00
mm
(mad
e t
o c
ust
om
ers
pre
fere
nce
)
35
30
45
25 50 C/C
25
Strands @ 210mm
Strands @ 160mm
Strands @ 110mm
Strands @ 60mm
30
0m
m t
o 8
00
mm
(mad
e t
o c
ust
om
ers
pre
fere
nce
)
495, 750, OR 970 preferred
Insitu slab C32/40 typically
20 Joint(Typical)
50
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
300
Depth
400
500
600
700
800
Blue = 495mm wide Yellow = 970mm wide *See Design Notes For Loading Assumptions pg 40-41Red = 750mm wide
Box Beam Span Table Shay Murtagh Precast 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
TECHNICAL MANUAL
35www.shaymurtagh.co.uk
Typical Section ofShear Reinforcement
for Box Beam
60
Typical Lifting Arrangements
Single crane lifting
4 No. 10.0T orGreater CapstansRecessed 40mm Min.into top of each unit
Lift
ing
Slin
g
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
De
pe
nd
en
t o
n S
ect
ion
60
138
170
60
15101450
VW
EBS
F
Yc
x x
Y
Y
Applies to Beams W16 to W19
75
L3L2
L1
Applies to Beams W1 to W15
W-Beam properties Shay Murtagh Precast
Type Depth
L1 L2 L3 Web S F V mm 2
(mm x 10 )(mm)(mm)3
(mm x 10 )4 96
Yc Z t Zb 1xx
(kN/m)Section
W1
W3
W5
W7
W8
W9
W10
W11
W12
W13
W14
W15
W16
W17
W18
W19
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
572360
606880
641400
692030
726550
761070
812400
846920
881440
933470
975150
1016060
1057970
1102680
1150190
1200500
305.3
345.9
387.5
440.2
484.2
528.7
585.2
631.3
677.6
736.7
790.6
844.3
898.6
954.5
1011.8
1070.5
71.88
89.54
108.76
136.21
159.46
184.11
219.51
248.01
277.84
321.13
362.63
405.7
451.09
499.74
551.68
606.97
116.46
143.43
171.88
204.15
235.73
268.56
305.62
341.33
378.23
419.9
462.97
507.3
552.89
599.75
647.82
697.1
35.556
49.614
66.61
89.871
114.14
142
178.85
215.46
256.28
309.34
366.03
428.3
496.83
572.45
655.49
746.26
14.31
15.17
16.00
17.30
18.16
19.03
20.31
21.17
22.04
23.34
24.38
25.40
26.45
27.57
28.75
30.01
1704.4
1732.4
1760.4
1788.4
1816.4
1844.4
1872.4
1900.4
1928.4
1956.4
1984.4
2012.4
2040.4
2068.4
2096.4
2124.4
203.2
203.2
203.2
210.2
210.2
210.2
217.2
217.2
217.2
224.2
238.2
252.2
266.2
280.2
294.2
308.2
1058
1086
1114
1128
1156
1184
1198
1226
1254
1268
1268
1268
1268
1268
1268
1268
100
200
300
350
450
550
600
700
800
850
950
1050
1050
1050
1050
1050
220
220
220
220
220
220
220
220
220
220
248
276
276
276
276
276
70
70
70
120
120
120
170
170
170
220
192
164
136
108
80
52
-
-
-
-
-
-
-
-
-
-
-
-
128
256
384
512
Area
Section ModulusSelf weightApproximate
DimensionsBeam Top
36 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
82.0 275 210 160
150
6060
75
De
pe
nd
en
t o
n S
ect
ion
L2 L3
L1
x x
Y
Y
251510
FS
WEB
25
Yc
82.0
138
170
150
210 160275
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
TECHNICAL MANUAL
Typical Anchorage of Lifting Hooks
Typical Section Through Bridge
D-shackle to beused when liftingon siteCrosby shackle screw pin-209Nominal size 50mmWorking load limit=35 tonnes
W-Beam Typical Details Shay Murtagh Precast
37www.shaymurtagh.co.uk
Precast ConcreteCantilevers Detail
Typical Section
60mm Min. Bearing
Precast ConcreteCantilever Units 100 x 60 RHS
200mm InsituConcrete DeckSlab
Threaded BarCast intoW-Beam
PrestressedConcreteW-Beam
75
75
20
0
Single crane liftingfor lifting both ends
Tandum crane liftingfor lifting both ends
Superstrandto be used for lifting
Superstrand tobe used for lifting
45
15
60
Tandum crane lifting
Single crane lifting
Lift
ing
Slin
g
Lift
ing
Slin
g
90
60
G.R.C.Panels
PrestressedConcreteW-Beam
100mm x 100mmsquare holes
through webs atspecified C/C
spacing
100mm x 100mmsquare holes
through webs atspecified C/C
spacing
100mm x 100mmsquare holes
through webs atspecified C/C
spacing
60mm Min. Bearing
Precast ConcreteCantilever Units
100 x 60 RHS Insitu ConcreteDeck Slab
PrestressedConcrete W-Beam
75mmPermanentFormwork
Threaded Bar Castinto W-Beam
200mm InsituConcreteDeck Slab
100 60 RHS Precast ConcreteCantilever Units
60mm Min. Bearing
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
38 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
TECHNICAL MANUAL
W-beam Typical Links and Possible Strand Positions
W-Beam Typical Details Shay Murtagh Precast
90 90
B12-02B12-01
B10-03B10-04
32
40
23
00
41
24890
31
3030
90248
4 No @ 2230
4 No @ 2130
4 No @ 2030
2 No @ 1880 2 No @ 1865
2 No @ 17802 No @ 17302 No @ 16802 No @ 16302 No @ 15802 No @ 15302 No @ 14802 No @ 14302 No @ 13802 No @ 13302 No @ 12802 No @ 12302 No @ 11802 No @ 11302 No @ 10802 No @ 10302 No @ 9802 No @ 9302 No @ 8802 No @ 8302 No @ 7802 No @ 7302 No @ 6802 No @ 6302 No @ 5802 No @ 5302 No @ 4802 No @ 4302 No @ 3802 No @ 340
8 No @ 21010 No @ 16028 No @ 11026 No @ 60
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
Precast Concrete
Precast Concrete
Precast Concrete = Strong + Durable + Versatile
These are the widely known characteristics and benefits of concrete. However precast concrete has much more to offer due to innovative, perfected and proven designs and efficient and perfected production methods.
These developments have led to time and money savings through
• Reduction of initial construction costs• Lower level of maintenance requirements• Quick and easy installation• No on-site delays due to curing
Why choose precast concrete?
• Rapid and efficient build• Lowest whole life costs• Increased accuracy and quality of finish• Low maintenance costs • Large span capabilities• Durability, strength and versatility• High resistance to noise transmission• Excellent thermal capacity• Inherent fire resistance• Buildability• Environmentally friendly
39www.shaymurtagh.co.uk
BEARINGSAs a general rule the edge of the bearing closest to the abutment should be detailed a minimum of 150mm from the end of the beam.
Prestressed concrete bridge beams can be used with any type of bridge bearings. However, elastomeric strip bearings and both plain and laminated elastomeric pad bearings are most commonly used for both temporary and permanent support requirements.
The connection between the bearing and the beam is a function of the type of bearing employed and any required inserts into the beam soffit can be easily accommodated. An epoxy mortar bed or similar is frequently specified for elastomeric pad bearings.
Due consideration must be given to the stability of the beams during construction for the type and width of bearing selected.
CAMBERDue to the properties of prestressed concrete units upward camber will be present. As our standard beams are cast on flatbases, built in cambers cannot normally be accommodated.
CAST IN ITEMSCast in items can be included providing that they do not project through the sides or soffit of our standard mouldage.Care should be taken to ensure that any cast in items do not conflict with reinforcement or prestressing strand locations.
CONCRETEThe use of cementitious materials other than RHPC may require a longer curing period prior to detensioning and therefore areto be avoided. Our standard concrete mixes have been designed to attain a transfer strength of C40/50 and a 28 day strengthof C50/60. Other concrete strengths can be considered.
Higher grade concrete is significantly beneficial for most bridge beam designs and can be used in beams manufactured byShay Murtagh with negligible cost implications.
DEBONDINGIt is common practice to debond varying lengths at the ends of a number of strands in order to pass the stresslimit checks at the beam ends. Debonding is typically achieved by inserting the relevant length of strand into a duct. Debonding is inexpensive and a simple procedure from a manufacturing perspective. Debonding more than fourstrands at any single point should be avoided. If large numbers of strands require debonding, it is recommended to doso at multiple debonding points spaced at 500mm or 1000mm gaps.
ENDSSkews up to 45 can normally be incorporated within our standard manufacturing procedures. The acute cornerwill be blocked out above 24 to minimise the risk of spalling. At the beam ends chamfers are provided across the soffitto prevent spalling on detensioning. Scarfed ends and solid end blocks should be avoided where possible. Where dowelslots are specified, account should be taken of the implications of reinforcement and cover detailing.
FINISHESTop finish will be as cast with the side and soffit finishes to the DTp Highway Specification or Eurocodes. Colour variationsoccur between our units and any site in-situ works.
LIFTINGOur standard lifting methods are shown, however methods vary due to beam properties.
LENGTHSThe overall beam lengths should be specified. Small variations in length should be avoided.
REINFORCEMENTLinks are tied to the prestressing strand using stainless steel tying wire as standard. Links must be dimensioned to take accountof strand positions and link diameters when considering cover requirements. For skewed beams links should be detailed square tothe beam centreline and skewed only at the beam ends. Two piece links of different diameters and/or centres should be avoided.To avoid displacement of reinforcement in complex cages during casting it may be necessary to use tack welding. Reinforcementprojecting through the sides and soffit should be avoided and reinforcement couplers should be considered as an alternative.Reinforcement projecting from the beam end should be straight where possible. Special stop ends/couplers may be provided toaccommodate a bob on the projecting bar.
STACKING BEARERSStacking bearers are generally located at 500mm from the beam end.
STRANDOur preferred strand size and type is 15.7mm diameter 7-wire super strands with nominal tensile strength of 1860 N/mmand relaxation class 2. Strands are typically prestressed to 209kN per strand. Debonding techniques can be used.
BRIDGE DESIGNER’S CHECKLIST: DESIGN NOTES
40 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
BRIDGE DESIGNER’S CHECKLIST: DESIGN NOTES
TESTINGOur high standards of quality control make routine load testing unnecessary.
TOLERANCESTolerances should be to either DTp Highways Specification or the Eurocodes.
WEB OPENINGSWeb holes are provided at standard centres as indicated in the details for each beam type.The centres of the first web holes should be at least 400mm from the beam end to avoid the risk of horizontal splitting.
WEIGHTThe weight of the beams used for handling and erection purposes is carefully calculated on a case by case basis, so the client can be economical with crane hire.
ASSUMPTIONS AND DESIGN CRITERIA USED FOR THE SPAN TABLES
The Eurocodes are used in conjunction with the relevant UK or Irish National Annexes Road vehicle live loading is applied using load models LM1, LM2 and the applicable range of LM3 vehicles (SV vehicles only). 150mm average surfacing thickness is assumed (unit weight = 23kN/m ) Grade C40/50 concrete used for the beams, grade C32/40 assumed for the in-situ concrete (Class N cement for both) Exposure Classes XC3/4 and XD1 assumed in conjunction with a 120 design life requirement. Total beam lengths are assumed to be at least 600mm greater than the span length.
The upper limits given in the span tables are necessarily based upon conservative bridge types and conditions. The maximum spans can likely be increased significantly if any of the following are relevant:
- Continuous multiple span bridges- Integral bridges- Wider bridges accomodating three or more notional lanes and/or wide footpaths- Exposure classes XD and XS do not need to be considered
If any of the above conditions are applicable, contact the Shay Murtagh technical department at technical@shaymurtagh.ie to determine the likely increase in maximum span above what is listed in the span tables.
RAIL APPLICATIONS
The span tables provided are not applicable for rail loading. Please contact the Shay Murtagh technical department for assistance with selecting the most suitable type and size of beam for a given span and structural characteristics. Please indicate the following details:
- Number and length of individual spans.- Indicate the use of full flexural continuity between spans and/or the use of integral connections between the superstructure and the abutments if applicable.- Depth of ballast above the deck.- Type of rail loading to be considered (Typically LM71).
Prestressed concrete beams are ideal for the rapid installation of bridge decks required for limited railway possessions. Shay Murtagh has developed a variety of details to eliminate the need for falsework and to minimize or eliminate formwork requirements for such structures. Please contact the Shay Murtagh technical department to determine how these details may be tailored to a specific rail bridge. Shay Murtagh has considerable experience in determining the optimal construction sequence for such structures and encourages the designer to contact the technical department for any desired assistance.
41www.shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
Shay Murtagh Precast Concrete is a BSI Registered Company. The Quality System fullycomplies with the requirements of BS EN ISO 9001:2000.
Additional Technical Information:
For additional information on Beam Section Properties, Strand Layout, Design Calculations,Drawings & Installation Advice, please contact:
IRL Enquiries:
UK Tel: 0844 202 0263UK Fax: 0844 888 5263Email: technical@shaymurtagh.co.uk
BRIDGE DESIGNER’S CHECKLIST: DESIGN NOTES
Although Shay Murtagh Precast Limited does its best to ensure that any advice, recommendations or information it may give is accurate, no liability or responsibility of any kind (including liability for negligence) is accepted by Shay Murtagh Precast Limited, its staff or agents. Claims and statements made by Shay Murtagh Precast Limited regarding its products refer to those which have been properly handled on site. Shay Murtagh Precast Limited cannot accept any liability or responsibility of any kind including liability for negligence for problems caused by the acts or omissions of third parties or by poor site practices.
42 UK Tel: 0844 202 0263 UK Fax: 0844 888 5263 Email: technical@shaymurtagh.co.uk
U-Beam MY-Beam MYE-Beam Y-Beam YE-Beam T-Beam TY-Beam TYE-Beam M-Beam UM-Beam Box-Beam W-Beam Design Notes
CONSTRUCTION
INDUSTRY FEDER
ATION
Shay Murtagh LimitedRaharney, MullingarCo. Westmeath, Ireland.IR Tel: 044 9374108/9374149IR Fax: 044 9374552Website: www.shaymurtagh.ieEmail: sales@shaymurtagh.ie
UK Tel: 0844 202 0263Website: www.shaymurtagh.co.ukEmail: sales@shaymurtagh.co.uk
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