ABSTRACT
This design is of the same section about the PingYuan Street~SuoLong Monastery 11 free way contracts to local farmland Road 1 (K0+288.50) Prestressed Concrete t-shaped supported beam bridge design.
The bridge belongs to the prestressed concreted structuer which is a simple supported beam bridge.The span arrangement is (4×20)m.The superstructure is variable T shaped supported beam bridge.The height of the girder on the support is1.33m,and the height of the middle is 1.33m too.The pier is gravity pier. The abutment is gravity abutment.
This essay focuses on the design and calculation process of the bridge.Firstly,compare and choose a best scheme from several bridge types;and make an overall structure design of the main span.Secondly perform the calculation of the internal force and reinforcing bar on the superstructure.Thirdly,check the intensity,stress and deflection.Finally,check the substructure..
The main points of the design are as the follows.
1.The comparison of several bridge types;
2.The arrangement of the bridge types;
3.The units partition of the structute;
4.The calculation of the internal force of dead load;
5.The calculation of the internal force of movable load;
6.The combination of every kind of load;
7.The arrangement of prestressed reinforcing bar;
8.The calculation of the prestressed loss;
9.The check of the section intensity;
10.The check of the section stress and deflection;
11.The check the substructure.