某排演中心观众厅双向预应力钢桁架屋盖设计与施工监测技术  

Design and Construction Monitoring Technology for Bidirectional Prestressing Steel Truss Roofs of a Rehearsal Center Building

作　　者：张宇鹏[1] 

机构地区：[1]北京市建筑工程研究院有限责任公司,北京100039

出　　处：《施工技术》2013年第20期14-16,共3页Construction Technology

摘　　要：某排演中心剧场属大型剧场建筑,其观众厅屋盖平面尺寸为30m×32m,荷载较大,设计为双向预应力钢结构桁架体系。介绍了对该结构体系的计算分析与节点设计,并确定了施工张拉顺序,对施工过程进行仿真分析,为制定施工方案提供理论依据。将光栅传感技术与预应力技术相结合,对预应力钢绞线拉索进行全寿命的准分布式应力监测,为预应力钢结构工作状态评估提供了重要依据。The auditorium roof of a rehearsal center is 30m ~ 32m with big loads, which is designed bidirectional prestressing steel truss system. Through simulation and joints design to this structure system, the tensioning sequence was assured and this supplied theoretical reference for construction scheme. Furthermore, the grating sensing technology and prestressing technology were combined to monitor the full life quasi-distributed stresses of the prestressed strand cable, which supplied data for prestressed steel structure work assessment.

关 键 词：钢结构 桁架 预应力 仿真分析 预应力损失 监测 

分 类 号：TU323.4[建筑科学—结构工程]