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Cable-stayed bridge during construction


Cable-stayed Bridge
Model Examples



Model description



Input



BIM model



Analysis model



Landscape model



ICDAS Basis of Design



Workflow of Software



Additional features



Rendering, Animation &
Vitural Reality
  


Case Study and 
Research




 


























 

Cable forces convergence at deadload

The Table and Figure below shows the cable axial force Fx compared to the initial input, where

 

T : Initial tensions of the cables from the Excel file (linear assumption)

SFac : Factor multiplied on T for the side span cable input

MFac : Factor multiplied on T for the main span cable input

SFx : Cable axial Fx converged from the nonlinear analysis in the side span

MFx : Cable axial Fx converged from the nonlinear analysis in the main span


SRatio = SFx/T

MRatio = MFx/T

 


150+302+150 

Figure: Ratio of the cable force Fx to the initial tension T

 

It seems that the estimated SFac yields the SRatio closed to 1.00 in the side span, i.e. the converged cable forces are
closed to the assumed T. In the main span the deviation is up to 12% at the cable no. 7. By increasing the ratio MFac
a better MRatio will be obtained. Note that a good estimation of SFac and MFac will faster the convergence significantly.

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ICDAS   •    Hans Erik Nielsens Vej 3   •    DK-3650 Ølstykke   •    E-mail: th@icdas.dk    •   Tel.: +45 20 20 33 78   •   CVR no.: 34436169 
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