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123456789_123456789_1123456789Cable-stayed Bridge Software 

Model Examples
ICDAS YouTube Channel   ICDAS CSB 2024.00R

Geometry Model 
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Cable-stayed Bridge
Model Examples



Model description



Input



BIM model



Analysis model



Landscape model

 

 

 

ICDAS Basis of Design



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Danube River Bridge design proposal using Civil Structures


This example applies ICDAS CSB 2016.00 for Civil Structures Option 2 combined with ICDAS family Option 1. Remark:

 

- Pylon and cables has been automated from ‘ICDAS_Generic_3D_Pier.rfa’ then loaded into project file (Option1)

 

- Massive concrete slab deck (streamlined) has been used as a fast test for customization of family file

  ‘ICDAS_Profile_2D_Deck.rfa’ automated from ICDAS CSB.

 

- Streamlined steel girder deck can be modify in Revit manually (from the above 2D Profile family file), then customize in

  Revit Civil Structures for 3D deck (not shown below)

 

 

- Concrete box girder deck can also be inputted in ICDAS CSB Excel BRIDGE sheet, then customize in Revit Civil Structures

  for 3D deck (not shown below). 



The bridge is crossing the Danube River connecting Braila and Smardan in Romania. The bridge site is as shown below.


Figure: Corridors for the bridge overpass and the Danube river underpass, AutoCAD Civil 3D.





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Figure: Longitudinal profile slope of 0.60%


Proposal for the corridors are designed in Civil 3D as a need of input for Revit Bridge. The final corridors can be easily

updated in Revit for all drawing details. The Civil 3D working steps and link to Revit are outlined in details in registered

licence CSB 2016.00R. It includes also guidelines for automatic creations of the deck, pylon, pier and abutment in ICDAS

families. Some of the basis rules of geometry for these elements are outlined in Geometry model  and Analysis model. 

 

The width of the Danube river at the bridge location is about 600m which perfectly fits to the cable stayed bridge,

having the spans 150+302+150m.

 


Automatic models creation allows us to test appearances of the cable stayed bridges for varying shapes of the pylons.

By changing eccentricities input for the pylon legs on top and at the bottom, one will get three different looks for the

same bridge as shown below (dimension are given in mm).


Figure: A-Pylon (EccTop, EccBot) =(4000, 16100). Harp cables system h5=6300.

 


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Figure V-Pylon (EccTop, EccBot) =(20600, 10600). Harp cables system h5=6300.



  
Figure H-Pylon (EccTop, EccBot) =(13000, 13000). Harp cables system h5=6300.


The 
next three bridges show the same shapes of the pylons as the above three, but the cables are arranged in 
a semi-fan system 
with vertical spacing h5=3000mm at the pylons.


  
Figure: A-Pylon (EccTop, EccBot) =(4000, 16100). Semi-Fan cables system h5=3000.



   
Figure
 V-Pylon (EccTop, EccBot) =(20600, 10600). Semi-Fan cables system h5=3000.


  
Figure
 H-Pylon (EccTop, EccBot) =(13000, 13000). Semi-Fan cables system h5=3000.

Also cross sections of the pylons, piers, foundations and cables can be changed fast as well. They are automated in *Generic_3DPier.rfa and loaded into the bridge model.


Changing the spans length is in Bridge Definition of Civil Structure. 

The spans length must be inputted in Excel STL sheet accordingly for the LusasCSB.cmd file.


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Updated 20-06-2018
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123456789_123456789_1123456789ICDAS  •  Hans Erik Nielsens Vej 3  •  DK-3650 Ølstykke  •   E-mail: th@icdas.dk   •  Tel.: +45 60 53 83 79  •  CVR no.: 34436169 
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