北京大学体育馆钢屋盖施工模拟与监测  

Simulation and monitoring for the construction of the steel roof of the Peking University Gymnasium

作　　者：钱稼茹[1] 张微敬[2] 赵作周[1] 潘鹏[1] 仲丛利 蒋千重 

机构地区：[1]清华大学,北京100084 [2]北京工业大学,北京100124 [3]中建一局钢结构工程有限公司,北京100073

出　　处：《土木工程学报》2009年第9期13-20,共8页China Civil Engineering Journal

基　　金：北京市自然科学基金重点项目(8041002);北京市2008工程指挥部奥运工程资助项目

摘　　要：对北京大学体育馆钢屋盖进行施工模拟与包括施工监测的健康监测。采用有限元软件ANSYS对钢屋盖施工过程进行模拟分析;健康监测以监测钢结构构件的应力、索力和结构的位移为主。监测结果表明屋盖结构是安全的;在拉索预应力张拉方案调整后,精细的有限元施工过程模拟分析为该工程刚性环的成功卸载提供理论依据;模拟分析理论值与实测数据吻合较好,表明钢屋盖结构预应力施工过程的有限元模拟分析计算模型和方法的正确性。该工作和研究成果对保证北京大学体育馆钢结构屋盖在使用过程中的安全是重要的评估指标,同时对以后相关工程的设计与施工也有重要的参考价值。Construction simulation and health monitoring of the steel roof of Peking University Gymnasium was conducted. Analytical simulation of the construction process of the steel roof was carried out by using the finite element software ANSYS. Health monitoring mainly involved measurements of strains of members, forces of steel cables and displacements of joints. The measurement data indicated the health monitoring is successful and the roof structure is safe. Numerical simulation provided theoretical support for the unloading process of the rigid ring of the steel roof after adjustment of the tension scheme of the pre-stressed cables. The theoretical values and the measured data are in good agreement, which validates the modelling and the method.

关 键 词：北京大学体育馆 预应力张拉过程 施工模拟 健康监测 

分 类 号：TU393.3[建筑科学—结构工程]