浙江舟山大陆连岛工程H匝道静动载试验研究

Research on H ramp static and dynamic load tests of island link project in the mainland of Zhoushan Zhejiang

为了测试某互通立交匝道的整体受力性能,对该桥进行了静、动载试验,通过将理论计算和试验数据进行对比分析,对该桥的整体受力性能和承载能力进行了评价。试验结果表明:该桥在静载作用下各控制截面的应变和变形满足设计要求,在动载作用下的振动频率和振动阻尼比与理论计算结果吻合较好,该桥的强度、刚度和动力特性皆满足设计要求。

An experiment is conducted to test the overall mechanical properties of the flyover bridge under the static and dynamic load.Through the theoretical calculations and experimental data,an evaluation on the overall mechanical properties and bearing capacity is made in this paper.The result shows that in static test,the strain and deformation of each controlling section can meet the design requirement,and in the dynamic test,the vibration frequency and damping correspond with the theoretical calculation.Further more,the strength,stiffness and dynamic properties of the bridge are all qualified to the design requirement.