王先铁1,2，刘立达1，周超3，高娅静1，贾贵强1，李婷婷1

（1 西安建筑科技大学土木工程学院， 西安 710055； 2 重庆大学土木工程学院， 重庆  400045；

3 中冶京诚工程技术有限公司， 北京 100176）

［摘要］进行了一榀1/3比例单跨两层方钢管混凝土框架-中间开洞薄钢板剪力墙的低周反复荷载试验，研究了钢板剪力墙中间开洞对方钢管混凝土框架-薄钢板剪力墙抗震性能的影响。利用有限元软件ABAQUS对方钢管混凝土框架-中间开洞薄钢板剪力墙进行了数值分析，研究了钢板剪力墙开洞位置、洞口宽度比、钢板剪力墙厚度以及加劲肋等对其力学性能的影响。结果表明：开洞位置的变化对结构影响很小；增大钢板剪力墙洞口宽度比降低了结构的承载能力和初始刚度；增大钢板剪力墙厚度提高了结构的承载能力和初始刚度；通过在洞口周边设置加劲肋，减小了钢板剪力墙的高厚比，减弱了钢板剪力墙对竖向边缘构件的影响。

［关键词］方钢管混凝土框架； 薄钢板剪力墙； 中间开洞； 开洞宽度比； 力学性能

中图分类号：TU398文献标识码：A文章编号：1002-848X(2016)02-0043-06

Mechanical behavior study of the concrete-filled square steel tube frame-thin

steel plate shear wall with middle openings

Wang Xiantie1,2， Liu Lida1， Zhou Chao3， Gao Yajing1， Jia Guiqiang1， Li Tingting1

（1 School of Civil Engineering， Xi′an University of Architecture & Technology， Xi′an 710055， China；

2 School of Civil Engineering， Chongqing University， Chongqing 400045， China；

3 Capital Engineering & Research Incorporation Ltd.， Beijing 100176， China）

Abstract:The low cyclic loading experiment was conducted for a 1/3 scale one-bay two-story concrete-filled square steel tube frame-thin steel plate shear wall with middle openings. The influence of middle opening of steel plate shear wall on the seismic behavior was investigated for the concrete-filled square steel tube frame-thin steel plate shear wall. The nonlinear numerical analysis of the concrete-filled square steel tube frame-steel plate shear wall with middle openings by using the finite element software ABAQUS. The influence of different parameters on the mechanical properties were analyzed, including the location of the steel plate shear wall opening, the ratio of opening width to the steel plate shear wall width, the thickness of infill plates and stiffening ribs. The analytical results show that the location of the opening has little influence on the mechanical behavior of the structure. The stiffness and strength of the structure decrease with the increase of the ratio of the opening width to the steel plate shear wall width. The increase of the infill plates′ thickness enhances the bearing capacity and the initial stiffness of the structure. Setting the stiffening ribs around the openings decreases the width-to-thickness ratio of infill plates and declines the influence of the steel plate shear wall on the vertical boundary member.

Keywords:concrete-filled square steel tube frame; thin steel plate shear wall; middle opening; the ratio of the opening width to the steel plate shear wall width; mechanical behavior

*国家自然科学基金项目（51108369），住房与城乡建设部科学技术项目（2014-K2-007），陕西省科技新星科研项目（2013KJXX-54）。

作者简介：王先铁，博士，教授，Email：wangxiantie@163.com。