（1天津大学建筑工程学院，天津 300072；2天津大学建筑设计研究院，天津 300072）

[摘要] 在汶川渔子溪村灾后重建工程中，采用了方钢管混凝土组合异形柱结构体系。利用MIDAS/Gen软件对其进行建模分析，分析了结构在各种工况下的静力特性，从结构的自振周期、异形柱连接板应力、柱底反力、外肋环板节点承载力等方面初步验证了设计的合理性。对结构的建造方法进行了简单介绍，说明异形柱和外肋环板节点施工快捷方便。

[关键词] 汶川灾后重建;方钢管混凝土异形柱;静力特性;外肋环板节点

Design of special-shaped column composed of concrete-filled square steel tubes （SCFST） structure in Wenchuan

Chen Zhihua^1, Chen Jun ¹,Yan Xiangyu²,Yu Yong²,Yu Jinghai²

(1 Institute of civil engineering, Tianjin University, Tianjin 300072, China; 2Tianjin University Research Institute of Architectural Design, Tianjin 300072, China）

Abstract: Special-shaped concrete filled square steel tubular ( SCFST) structure was adopted in Wenchuan reconstruction project. The static characteristics of the SCFST structure was studied based on the MIDAS software. The natural vibration period, the stress of special-shaped column batten plate and the reaction force at the column base were analyzed which could verify the rationality of the design. The construction method of structure was introduced briefly which could show the easy construction of SCFST and the vertical stiffener joint.

Keywords: Wenchuan reconstruction project; special-shaped concrete filled square steel tube; static characteristics; vertical stiffener joint.