预应力钢筋混凝土箱梁桥开裂机理及控制研究

Study on Cracking Mechanism and Control of Prestressed Reinforced Concrete Box Girder Bridge

从影响箱梁桥开裂的多重因素出发,借助Abaqus建立相应的有限元模型,并分别从三种不同的工况条件探讨关键截面开裂的机理。随后以此为基础从腹板、底板两个方面提出了相应的控制措施。

Starting from the multiple factors affecting the cracking of box girder bridges,this paper establishes the corresponding finite element model with the help of Abaqus,and discusses the cracking mechanism of key sections from three different working conditions.Then,based on this,the corresponding control measures are put forward from the two aspects of web and bottom plate.