RESEARCH ON OPTIMAL CLOSURE PROCESS OF CONTINUOUS RIGID FRAME BRIDGE

Wei LI

School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing, CHINA

Abstract: The closure process of the continuous rigid frame bridge influences the bearing capacity and displacement of structures after completion. In this article, the effects of different closure processes on bridge internal forces and displacements have been researched by analyzing the three-span continuous rigid bridge with the finite element analysis software. And to the continuous rigid frame bridge with unequal height piers, the changing differences of its internal forces and displacements have been compared in terms of applying the same joint scheme. Ultimately, the optimal joint scheme of continuous rigid frame bridge with equal and unequal height piers at closure construction has been obtained.

Keywords: Continuous Rigid Frame Bridge; Closure Process; Internal Force and Displacement