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張文元 張耀春
（哈爾濱工業(yè)大學(xué)土木工程學(xué)院  150090）

[提要] 采用雙重非線性有限元程序ANSYS5.7，分析了不同加載方式、軸向荷載、支撐長細(xì)比、支撐軸向剛度和橫梁剛度等因素對人字形和X形支撐的巨型鋼柱滯回性能的影響規(guī)律。為巨型鋼框架結(jié)構(gòu)中巨型鋼柱的設(shè)計(jì)提供了理論依據(jù)和合理建議。
[關(guān)鍵詞]  巨型鋼框架  巨型鋼柱 雙重非線性 滯回性能

Analysis of Influencing Factors to Spatial Hysteretic Behavior of Mega Steel Columns

Zhang Wenyuan, Zhang Yaochun
( School of Civil  Engineering,  Harbin  Institute of Technology, Harbin  150090, China)

Abstract: Using dual non-linearity FEM program ANASYS5.7, the  hysteretic behaviors of mega  steel  columns braced with inversed V shape bracings and X shape bracings are studied with some influencing factors, including loading modes, axial compression ratios, slenderness ratios of braces, axial  stiffness of braces, and stiffness of beams. Based on the research results, the theoretical basis and some reasonable suggestions are put forward in the engineering design of mega steel frames.
Keywords: mega steel frame; mega steel column; dual non-linearity; hysteretic behavior