Design and analysis of full framing of arch ring in national highway reconstruction project

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Shi, Jing Xian^1 ; Chen, Cong Jia^2

Oxbridge College, Kunming University of Science and Technology, KunMing, Yunnan

650106, China^1

Sanjiang University, Nanjing, Jiangsu

210012, China^2

关键词: Analysis and calculations;    Bridge structure analysis;    Construction requirements;    Foundation bearing capacity;    Highway reconstruction projects;    Overall and local stabilities;    Reconstruction projects;    Specification requirement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062160/pdf
DOI  :  10.1088/1757-899X/392/6/062160

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper takes the support system of a 25m span arch bridge in the reconstruction project of Yunnan National Highway 323 in China as the analysis object. Based on the Midas Civil bridge structure analysis software, the space discrete model of scaffold is set up to simulate analysis and calculation. Firstly, checking intensity and stiffness of the pole, I-steel and distribution beam of wooden keel, anti sliding checking the bearing capacity of foundation and abutment, the foundation bearing capacity and abutment slip resistance calculation; then the buckling analysis is carried out on the overall and local stability of the brackets. The results show that the strength and stiffness of each member of the support system meet the specification requirements and have a certain safety margin; the foundation pad shall be properly enlarged on the basis of the original design to meet the requirements of the counterforce of the support; the overall and local stability of the support can meet the construction requirements.