Time and Cost Comparison of PSC Superstructure with RCC for River Bridge

Bridges are the key component of the highway infrastructure supporting transport system of India. The design of river bridges are mainly depend on the navigational flow, available waterway, velocity of water current etc. Executions of such bridges is always a challenging job. Though the engineers feel the foundation of River Bridge is critical, the construction of superstructure is also not easy. It depends on various site constraints like land available for construction, resources available, water intensity etc. . The superstructure type shall be selected considering the river flow and suitability of execution as well as durability of the structure. The use of advance construction methods will help for faster completion of the projects reducing overall cost and time of project. The proper selection of superstructure will help to complete the bridge as per schedule which finally saves cost of the project. In the present study, two superstructure types (RCC/PSC) are studied to review its suitability for bridge having span length of 21.50m. The cost and time component for both types are evaluated to work out the economical option for superstructure. It is observed that the RCC T Beam is the economical superstructure type in construction point of view but it is having some limitations for durability of structure.