The Transverse Stress Analysis of Prestressed Concrete Bridge

Abstract:

For the prestressed concrete girder with broad bottom slab such as box girder or trough girder, if the girder has no transverse prestressing, longitudinal cracks are probably appeared. The reason is that the concrete of bottom slab is subjected to longitudinal prestressing and transverse bending, in the biaxial stress condition of tension and compression. What’s more, the longitudinal cracks are more harmful. But there is no specific regulation in the Professional Standard of the People’s Republic of China JTG D62-2004 and TB10002.3-2005, and for the parallel codes in other countries, they are also considered uncompleted, but useful for reference. To ensure the use of bridge the codes should make a definite regulation.