大跨径斜拉桥静载试验研究

Study on Static Load Test of long-span Cable-stayed Bridge

以某双塔组合梁斜拉桥为工程背景,通过成桥静载试验和理论计算分析,对桥梁刚度和强度进行了研究。结果表明:主要测点的挠度和应变实测值小于理论计算值,桥梁刚度和强度均满足设计要求。

Based on the engineering background of a double-pylon composite beam cable-stayed bridge,the stiffness and strength of the bridge are studied through the static load test and theoretical calculation analysis of finished bridge.The results show that the measured values of deflection and strain of the main measurement points are smaller than the theoretical calculating values,and the stiffness and strength of the bridge all meet the design requirements.The study result can be referred for the design of the similar bridges and the test of the similar finished bridges.