大跨幕墙抗震性能分析方法探讨  

Discussion on Seismic Performance Analysis Methodology of Large Span Architectural Curtain Walls

作　　者：卢文胜[1] 黄宝锋[2] 曹丽娜[2] 曹文清[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]同济大学土木工程学院,上海200092

出　　处：《结构工程师》2014年第2期97-103,共7页Structural Engineers

摘　　要：分析大跨幕墙结构特性及其抗震薄弱环节,对高层建筑大跨幕墙结构和幕墙-钢结构体系的加速度反应和位移反应特征进行了分析和探讨,指出减小地震反应采取的措施;建议采用楼层加速度反应谱和相对位移幅值谱对大跨幕墙进行地震作用分析;建立大跨幕墙抗震性能指标体系,指导大跨幕墙结构抗震设计与试验分析;提出大跨幕墙结构的抗震概念设计。Large span architectural curtain walls and corresponding member fragility in earthquakes are studied. Characteristics of curtain wall-steel structure system in high-rise buildings are analyzed and discussed. It is found that necessary measures should be utilized to reduce the earthquake responses. The floor spectra including acceleration amplification coefficient factor spectra and the relative displacement spectra should be considered in the analysis of large spanned curtain walls. The relative seismic indices and the enveloping response spectra are proposed to guide seismic design and seismic testing of large spanned curtain walls. It is recommended that the conception design and structural detail should be enhanced to prove the security of large spanned architectural curtain walls under the strong earthquake actions.

关 键 词：大跨幕墙 抗震性能 加速度反应谱 相对位移幅值谱 概念设计 

分 类 号：TU399[建筑科学—结构工程] TU352.11