Finite Element Analysis of Shrinkage and Creep of Concrete Bridges

Shan Gao, Wenyuan Li, Zixi Guo, Lei Ren

School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610106, China

Abstract: With the continuous improvement of bridge construction technology in China, a large number of bridge projects emerge in an endless stream. Most of the building materials used in these projects are concrete. The shrinkage and creep of concrete have a certain influence on the quality of bridges. Because it is not easy to analyze the shrinkage and creep of concrete through the whole bridges, the finite element calculation is used to analyze the shrinkage and creep of concrete bridges. Based on the finite element analysis method, this paper designs specific calculation steps, and compares the calculation results with the values of ANSYS program, which shows that the finite element calculation and the ANSYS program have less error. At the same time, the finite element analysis method meets the design requirements of the pre-stressed concrete box girder with ballasted track, which verifies the rationality of the finite element analysis.

Keywords: Concrete; Creep; Bridge; Finite element