A bridge is a structure that crosses over a river, bay, or other obstruction, permitting the smooth and safe passage of vehicles, trains, and pedestrians. Bridge construction today has achieved a worldwide level of importance. Bridges are the key elements in any road network. Use of concrete girder is gaining popularity in railway bridge engineering because of its better stability, serviceability, economy, aesthetic appearance and structural efficiency. The structural behavior of box girder is

more »

... omplicated, which is difficult to analyze in its actual conditions by conventional methods. In this project a simply supported Box Girder Bridge made of pre stressed concrete is analyzed for moving loads following different standards and specifications. The Ethiopian Government has constructed Addis Ababa light rail transit (AALRT) project and also has started the construction of national railway project for different corridors of the country is under construction with CREC (China Railway Engineering Company) and another foreign (international) contractors. The railway bridge commonly contains two types of tracks which are ballasted and slab track. This project principally emphases on the superstructure of bridge supporting track rails attached to the bridge to support trains. Thus, this project has attempted to develop the Micro soft Excel program to analyze and design the Pre-stressed Concrete (PSC) Girder Railway Bridge for any span length