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sap2000 cable stay modeling

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sap2000 cable stay modeling

Text of sap2000 cable stay modeling

STRUCTURE PROJECT 2009 CABLE STAYED BRIDGE

2 SPANS 160 M FOR EACH

22 M WIDTH

PREPARED BYMOHAMED ELGOHARY MOHAMED

PYLONSHAPE A OR DELTA

CABLES

THE DECK

BEARINGS

MATERIAL ROPERTIES FOR THEDECK AND PYLONSCOCRETE STRENGTH C28 = 500Kg/cm2

MODULUS OF Elasticity =335 t /cm2 Poison ratio =0.2

Thermal coefficient =0.00001

Properties of stay cablesNominal diameter =15.7 mm

Nominal tensile strength(U.T.S) = 17.7 t/cm2 Nominal weight =1.18 kg/m Modulus of elasticity = 1950 t/cm2Allowable stress in (U.L.S) = 0.6 U.T.S

MODELLING AND ANALYSIS

BY SAP 2000

DEFINELANES VEHICLES VEHICLES CLASSESS BRIDGE RESPONSES

DEFINE

WIND LOAD

2 CASES FOR WIND LOAD 1- CASE DEAD LOAD + LIVE LOAD 1 KN /M2

2-CASE DEAD LOAD

2 KN /M2

LOAD COMBINATION FOR WIND LOAD

0.9(1.35D.L+ 1.35 VEHICLE+0.9 W.L)

DEFINEEARTHQUAKE LOAD CASE

LOAD COMBINATION FOR EQ

( D.L + 0.2 VEHICLE+1.0 EQ)

LOAD CASE OF

TORSION2 LANES -1 WAY OCCUPY

OTHER 2 LANES ARE EMPTY

LOAD CASE OF

TORSION2 OUTER LANES OCCUPY

OTHER LANES EMPTY

FINAL RESULTS

THE DECKMAX AXIAL FORCE = -107784.905 KN

MOMENTMAX +ve MOMENT=140513.3679 KN.M

MAX ve MOMENT = -130005.346 KN.M

TORSIONMAX TORSION =10965.1112 KN.M

SHEARMAX SHEAR = 12041.742

PYLONAXIAL FORCE = -194879.9 KN MAX M3 = -50303.4 KN.M

MAX M2 = 30673.5308 KN.M

CONNECT BEAMAXIAL FORCE = -8661.938 KN MAX M3 = 32051.158 KN.M

MAX M2 = 4008.7672 KN .M

THE DECK SECTION

PYLON SECTION AT TOP

PYLON SECTION AT BOTTOM

CONNECT BEAM SECTION

FINAL PRETENSION

FINAL DEFLECTION

FINAL AREA STEEL FOR CABLES

( * * )

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