Static Load Test Study on Long-span Continuous Rigid Frame Bridge with V-shaped Pier

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Zhang, Fei^1 ; Wang, Yan^1

College of Engineering, Fujian Jiangxia University, Fuzhou

350108, China^1

关键词: Continuous rigid frame bridges;    Deflection curves;    Efficacy coefficients;    Evaluation indicators;    Static characteristic;    Static load tests;    Theoretical values;    Vertical deformation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/4/042062/pdf
DOI  :  10.1088/1755-1315/295/4/042062

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Taking the main bridge of the shuidong bridge in Youxi country of Fujian province as background, this paper develops the static characteristic analysis and static load test study on long-span prestressed continuous rigid frame bridge with V-shaped pier. By the analysis and comparison between the measured data and FEA results, it evaluates the working condition of the bridge. The results show: Firstly,each evaluation indicator tested meets the requirements of "Test methods for large-span concrete bridges" Secondly, the strain efficacy coefficient of measured points in top plate of each control section is within 0.65∼0.74, and that of the measured points in bottom plate is within 0.64∼0.73, the residual strain of the measured points is less, therefore, the safety stock of the bridge is sufficient, and it is on the flexible working condition basically; Finally, the measured value and the theoretical value of deflection curves along the longitudinal bridge is compatible, the efficacy coefficient of vertical deformation is within 0.55∼0.85, and the severity of the practical structure is more.