基于Midas Civil的钢结构人行天桥荷载试验和承载力评价  

Load Test and Bearing Capacity Evaluation of Steel Structure Pedestrian Overcrossing Based on Midas Civil

作　　者：陈新祥 刘欣 吕美忠 CHEN Xinxiang;LIU Xin;LV Meizhong(Guangdong Jianye Testing Technology Co.,Ltd.,Dongguan 523000,Guangdong,China;Foshan Highway and Bridge Engineering Monitoring Station Co.,Ltd.,Foshan 528000,Guangdong,China)

机构地区：[1]广东建业检测技术有限公司,广东东莞523000 [2]佛山市公路桥梁工程监测站有限公司,广东佛山528000

出　　处：《工程技术研究》2024年第12期1-5,共5页Engineering and Technological Research

摘　　要：文章基于Midas Civil有限元数值分析模型,采用等效弯矩原理施加荷载,对东莞市虎门镇黄河时装城路段的钢结构人行天桥进行荷载试验检测,测试结构重要受力部位的应力应变情况和变形分布规律,并将试验测试数据与理论分析数据进行对比,结果表明:该钢结构人行天桥的应力应变和刚度均满足规范要求,验证了桥梁的极限承载能力状态和正常使用极限状态良好。Based on the Midas Civil finite element numerical analysis model,the load test on the steel structure pedestrian overcrossing in the section of the Huanghe Fashion City in Humen Town,Dongguan City is carried out by putting load according to the principle of equivalent bending moment.The stress and strain situation and deformation distribution law of the important load-bearing parts of the structure are tested,and the test data are compared with the theoretical analysis data.The results show that the stress,strain and stiffness of the steel structure pedestrian overcrossing meet the requirements of the specification,which verifies that the ultimate bearing capacity state and serviceability limit state of the bridge are good.

关 键 词：钢结构人行天桥 有限元模型 等效荷载 荷载试验 承载力评价 

分 类 号：TU398.7[建筑科学—结构工程]