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(大連理工大學(xué)工程力學(xué)系工業(yè)裝備結(jié)構(gòu)分析國家重點(diǎn)實(shí)驗(yàn)室  116024)
【提要】  考慮鋼框架結(jié)構(gòu)的地震作用、結(jié)構(gòu)構(gòu)件面積、材料彈性模量、屈服強(qiáng)度、恒荷載和活荷載的隨機(jī)性,對(duì)結(jié)構(gòu)進(jìn)行不同水平加載模式下的靜力彈塑性(Pushover)分析,采用概率統(tǒng)計(jì)理論中的KS檢驗(yàn)法,對(duì)最大層間變形概率分布進(jìn)行了分析。結(jié)果表明,在給定地震烈度下基于Pushover分析的鋼框架最大層間變形服從極值Ⅱ型分布,而且不同水平加載模式對(duì)統(tǒng)計(jì)參數(shù)有一定的影響。
【關(guān)鍵詞】  鋼結(jié)構(gòu)  Pushover分析  抗震設(shè)計(jì)  概率分布  KS檢驗(yàn)
Statistical Properties of Maximum Story Drift of Seismic Steel Frames by Pushover Analysis/Li Gang(Department of Engineering Mechanics,State Key Laboratory of Structural Analysis of Industrial Equipment,Dalian University of Technology,Dalian 116024,China)
Abstract:The concept of performance based on seismic design has been recommended as one of the nonlinear analysis methods in the new Chinese seismic design code.The statistical properties of the maximum story drift of seismic steel frames  are presented by Pushover analysis using the KS test,considering the randomness of earthquake load,dead load,live load,steel elastic module, steel yield strength and structural member imensions.The results show that the probability distribution of the maximum story drift has the probability distribution of extreme value type Ⅱ,and different selection of lateral load pattern in Pushover analysis has some influence on their statistical parameters.
Keywords:steel structure; Pushover analysis; aseismic design; probability distributions; KS test