（1 南昌大学设计研究院， 南昌 330047；  2 江西省建筑设计研究总院， 南昌 330046；

3 南昌大学建筑工程学院， 南昌 330031）

［摘要］底部边界约束对填充墙RC框架结构抗侧性能影响明显，考虑底部约束效应，合理计算填充墙框架结构侧移刚度及其水平抗力的设计方法亟待形成。采用ANSYS程序对3个单层单跨填充墙框架模型进行非线性仿真分析并与其试验结果对比验证之后，建立了3个单层单跨和3个两层单跨不同开洞率的填充墙框架结构模型，模拟分析了底部边界约束对填充墙RC框架结构抗侧性能的影响，得出了底部构件越刚，墙体所受约束更强，墙体受力区域及其传力路径越优，结构抗侧承载力及侧移刚度越大等结论。

［关键词］底部边界； 填充墙； RC框架结构； 抗侧性能； 非线性仿真分析

中图分类号：TU3754文献标识码：A文章编号：1002-848X(2017)01-0060-05

Nonlinear simulation analysis on influence of bottom boundary constraint on lateral resistance performance of RC frame structure with infilled wall

Zhao Wenlan1,  Zhong Yaxi2,  Jia Yigang1,  Yuan Zhijun3, Wu Guangyu1

（1 Design & Research Institute，Nanchang University, Nanchang 330047， China；

2 Jiangxi Province Architectural Design & Research General Institute，Nanchang 330046， China；

3 School of Civil Engineering and Architecture，Nanchang University, Nanchang 330031， China）

Abstract:The bottom boundary constraint has obvious influence on the lateral resistance performance of RC frame structure with infilled wall. Considering the effect of the bottom boundary constraint, the design method of reasonable calculating lateral stiffness and horizontal resistance of RC frame structure with infilled wall is urgently to be formed. After the nonlinear simulation analysis on 3 single-storey and single-span infilled wall RC frame structure test models by ANSYS and comparison with the test results, 3 single-storey and single-span as well as 3 two-storey and single-span infilled wall RC frame structure models with different opening rates were built for simulating and analyzing the influence of the bottom boundary constraint on the lateral resistance performance of RC frame structure with infilled wall. Analysis results  that the stronger the stiffness of the bottom component is, the more constrained the wall is, and the more reasonable the wall stress area and the force transmission path is, the greater the lateral resistance bearing capacity and lateral stiffness of the structure is were concluded.

Keywords:bottom boundary; infilled wall; RC frame structure; lateral resistance performance; nonlinear simulation analysis

*国家自然科学基金（51268044）。

作者简介：赵文兰，工程师，Email：449244781@qq.com。

通讯作者：贾益纲，教授，Email：jiayigang999@sina.com。