系杆拱桥吊杆初张拉索力的计算研究

Calculation of Tensioned Cable Force in the Beginning of Tied Arch Boom

为研究系杆拱桥的吊杆在初张拉中的受力状态,用MIDAS建立全施工过程三维杆系模型,计算在张拉中各吊杆受力状态;张拉完成后用索力仪测出吊杆的受力,对比分析结构的受力状态。论文提出施工技术措施,给出理论计算值,优化结构体系受力状态。

To study tension of Tied Arch Bridge a boom at the beginning of the stress state,use MIDAS to establish three-dimensional model of the whole construction process Bars.Calculate tension stress state of each boom.Then use cable force in post-tensioning complete instrument measured the force boom,and comparative analysis of the stress state structures.In this paper,construction technical measures,given the theoretical value,optimize the structure of the system state by force.