Review on Design of Railway Bridge from Dockyard to CST

This paper presents the proposal of constructing a new prestressed railway bridge from Dockyard railway station to CST railway station. The proposed bridge will help divert two platforms of harbour line to a new location in CSTM station area and the existing two harbour platforms will be used to facilitate the construction of 5th and 6th line of central railway. The commuters of the central line have a really hard time while commuting as most of the trains are overcrowded. Hence, the government has proposed an expansion of two extra lines for central line passengers. However, this could not be implemented due to space problems for the route. If the existing harbour lines are shifted to a new location, it could open up new alternatives for future expansion for both the lines. The proposed bridge will be a prestressed continuous bridge with pile foundation. The bridge will have a total span of around 3000m. Prestressed bridges require only one line of bearing, reducing the width of pier which helps in reduction of flow obstruction. They require less expansion joints hence reducing the cost of the bridge. This paper also includes study of various research papers about the structural behavior of prestressed railway bridges to loads, exposure, materials, etc. The analysis and modeling of the bridge will be done by STAAD Pro.