【摘要】 方钢管混凝土异形柱结构是一种新型结构,在汶川县映秀镇渔子溪村重建项目的 200余户住宅中得到应用。对此结构进行了较为全面的抗震性能分析,包括阵型分解反应谱分析、弹性时程分析和静力弹塑性分析,并将其静力弹塑性分析结果与单根方钢管混凝土柱结构的结果进行比较。分析发现,方钢管混凝土异形柱结构能够满足抗震要求,且在罕遇地震作用下的表现优于方钢管混凝土单柱结构。更多还原

【Abstract】 Special-shaped concrete filled square steel tubular(SCFT) structure,a new type of structure,was adopted in Wenchuan reconstruction project which includes 200 sets of houses.In order to study the seismic performance of SCFT,several analysis methods such as response spectrum analysis,linear time history analysis and push-over analysis were used.The common concrete filled square steel tubular(CFT) structure was also analyzed and their results were compared.The analysis results indicate that the SCFT structure can meet the seismic demand and its performance is better than that of CFT under rarely met earthquake.更多还原