大跨度空间结构安全预警评估技术研究  

Safety assessment and early warning technology in long-span spatial structures

作　　者：罗尧治[1] 苑佳谦[1] 

机构地区：[1]浙江大学空间结构研究中心,浙江杭州310058

出　　处：《空间结构》2011年第3期61-68,共8页Spatial Structures

基　　金：国家863项目(2007AA04Z441)

摘　　要：基于大跨度空间结构安全问题的重大意义,在对影响其安全的各因素特点进行充分分析的基础上,将层次分析法引入到空间结构的安全预警评估中.根据空间结构的自身特点及所处环境的复杂性,提出了适用于空间结构预警评估指标体系的构建方法;结合模糊综合评判和模式识别理论,建立起完整的安全预警评估流程;并通过某钢结构工程的典型实例进行了定量化分析评价.通过对空间结构预警指标体系和评估方法的初步研究和探索,为在实际工程中建立更为科学合理的预警评估模型提供了思路,对改进传统评估方法的不足具有重要意义.Based on great meanings of the structural safety problem in long-span spatial structures,the analytic hie-rarchy process（AHP） was introduced into safety assessment and early warning procedure for spatial structures after full consideration of the mass safety influence factors.According to the characteristics and complicated surrounding environment of the structures,the constitutional method for assessment index system which could be applied in spatial structures was given.Combining with the methods of fuzzy comprehensive evaluation and pattern recognition theory,a complete process for safety assessment and early warning was established.Then the quantitative analysis was conducted through a typical steel structure project.The preliminary study provided insight into how scientific assess-ment models could be constructed,which was of great significance to improving traditional evaluation methods.

关 键 词：空间结构 预警评估 层次分析法 指标体系 模糊评价 

分 类 号：TU393.3[建筑科学—结构工程]