在役钢筋混凝土肋拱桥荷载试验研究

Loading test research of in-service steel reinforced concrete rib-arch bridge

结合工程实例,对七星工业园闸边桥进行荷载试验,利用Midas程序建立了有限元分析模型,模拟了该桥的静载和动载受力性能,与实测数据分析对比,发现桥梁结构实际横向联系大于理论值,桥梁整体强度和刚度均满足设计规范;桥梁结构振动速度和冲击系数随着跑车速度提高而增加。

Combining with engineering example,the paper carries out loading test for Zhabian bridge in Qixing industrical park,establishes finite element analysis model with Mida program,simulates its static load and dynamic loading stress performance,and compares to actual measuring data,and finds out that: actual lateral linkage value of the bridge structure is greater than theoretical value;both its integral strength and rigidity meet design norms;the vibrating speed and impact coefficient of the bridge structure will increase with the sports car speed increasing.