北京大学体育馆弦支网壳预应力设计与施工技术  

DESIGN AND CONSTRUCTION OF CHORD-SUPPORTED PRE-STRESSED GRID SHELL OF PEKING UNIVERSITY GYMNASIUM

作　　者：庞京辉 刘健博 蒋千重 邓飞 路克宽[2] 

机构地区：[1]中建一局钢结构工程有限公司,北京100073 [2]北京建工集团有限责任公司,北京100055

出　　处：《建筑技术》2008年第3期226-230,共5页Architecture Technology

摘　　要：北京大学体育馆工程结构屋盖为复杂钢结构体系,其屋盖体系由圆钢管焊接组合成的中央刚性环、中央球壳、辐射桁架、拉索和支撑体系组成。预应力索桁架是本结构的主要承力构件,也是结构施工的重点、难点,通过制定张拉方式、施工仿真计算与分析以及施工监测,使预应力拉索设置合理,有效地增加结构的刚度、降低结构竖向变形。The roof of the gymnasium is a complex structure system composed of rigid central ring assembled with welded steel pipes, central spheric shell, radial truss, tensile cable and supporting system. The pre-stress cable truss is the main load-bearing structure and the focus of the construction. The establishment of pretensioning method, simulating calculation and monitoring of construction have rationalized the arrangement of pre-stress cable, strengthened the structural rigidity effectively, and reduced the vertical deformation of the structure.

关 键 词：奥运工程 北京大学体育馆 预应力 钢结构 

分 类 号：TU758[建筑科学—建筑技术科学]