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简支梁桥单板传统的计算方法是铰接法,即假设各片梁之间的连结是通过只传递竖向剪力而不传递弯矩的铰连结的,实际上单板桥梁受力更为复杂些。为了研究铰缝破坏的特点及根源,本文将针对8m跨径的简支梁桥进行静力分析,对应不同的计算方法建立不同的有限元模型,尽量准确地模拟实桥的工作状态,分析铰缝失效形成单板受力的病因,以便更好的整治和预防单板受力病害。
The traditional calculation method of single-girder bridge veneer is the hinge method, that is, the connection between the girders is assumed to be achieved by transmitting only the vertical shear force without the hinge moment of the bending moment. In fact, the single-girder bridge is more stressed More complex. In order to study the characteristics and causes of the joint failure, this paper will analyze the static analysis of the 8 m-span simply supported girder bridge, establish different finite element models according to different calculation methods, simulate the working condition of the actual bridge as accurately as possible, Failure to form the cause of the veneer stress in order to better remediation and prevention veneer disease.