Temperature Stress Study on the Arch Bridge Strengthening based on Midascivil Solid Element

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Li, Zilong^1 ; Yang, Jianming^1 ; Kang, Fulong^2 ; Yi, Lingzhi^1

College of Civil Engineering, University of South China, Hengyang, China^1

Dongguan Branch, Shenzhen Municipal Design and Research Institute Co. Ltd, Dongguan, China^2

关键词: Bridge strengthening;    Contact interface;    Engineering fields;    Linear expansion coefficient;    Simulation analysis;    Solid element model;    System temperature;    Temperature stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062066/pdf
DOI  :  10.1088/1757-899X/392/6/062066

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

When using Midas/civil solid element modeling analysis arch bridge strengthening by enlarging section method, found system temperature change stress is too large, serious discrepancies with the actual project. The main reason is that: It is difficult to consider the effect of bonded rebar in the strengthening scheme by simulation analysis; Due to the different linear expansion coefficient, the new and old materials lead to the mutual restraint strain at the contact interface. At present, there is a large temperature stress in the structure of mixed masonry (pouring) of many different materials in the Chinese engineering field when the structure is simulated by the solid element, which need further research and solution in the future.