摘要
以武汉体育中心游泳馆屋顶网架结构为工程背景,研究设计了网架结构安全预警系统中的关键杆件工作状态实时安全度评定子系统。该系统采用基于结构体系可靠性理论的空间结构中各构件权系数的计算方法,得到了对结构可靠度影响较大的关键构件,并给出了工作状态安全度评定方法。通过实时监测关键杆件的应力,评判关键杆件应力预警等级,达到对该网架结构安全预警的目的。
Taken the natatorium＇ s roof space truss structure of Wuhan sports center as engineering background, the automatic assessment work status safety of structural key members sub-system is designed. Based on the reliability theory, the structural component weighting factors method of spatial structure is adopted. In the light of the method the key members are judged out. And a simplified method to evaluate the security of existing building structures is proposed. Based on data-acquisition from the strain gauges installed on the key members, the safe early-warning grade is identified and it successfully realized safe early-warning of the space latticed truss structure by informing the consumer timely.
出处
《华中科技大学学报（城市科学版）》
CAS
2010年第1期55-58,共4页
Journal of Huazhong University of Science and Technology
关键词
网架结构
安全预警系统
结构可靠度
关键杆件
space latticed truss structures
safe early-warning system
system reliability
key members
