Exploring the Cable-Stayed Bridge with Shifting the Cable Arrangement at Deck Level

Cable stayed bridges are becoming a more and more viable option for lengthy spans with the development of computer-based optimisation techniques. Additionally, because they are suspended structures, they can be constructed with ease in locations where it would be challenging to provide several foundations or piers. The pre-tensioning forces of the cables on Sikkim’s Akkar Bridge have been determined through this investigation. CSiBridge software is the programme utilised for the investigation. A analysis of the bridge’s several parameters concludes this work. The parametric analysis looks at the deck moment, the bridge’s span-wise reaction, the height of the pylon, and the length of the span in relation to the girder thickness. Also investigated is the impact of superstructure modifications on substructure. Due to a lack of resources, particularly steel, cable stayed bridges were initially created in Germany in the years following World War II. The effective introduction of cable stayed bridges is made feasible by the development of welding processes, advancements in structural analysis, the use of high strength steel, orthotropic type decking, and the previously noted shortage of steel in the years following World War II. Cable stayed bridges were extremely statically indeterminate structures. Electronic computers were essential in determining the precise solution to these extremely indeterminate systems and in analysing the cable stayed bridge. The software CSi Bridge is used to perform the analysis. Three distinct models of cable-stayed bridges have been constructed, each taking into account identical cable configurations under varying situations. Since the cables are arranged on the deck at various angles and attachment locations, their effects may be thoroughly investigated. IRC Class 70R Vehicle load was taken into consideration when taking live loads in accordance with IRC: 6-2017.