

（1 广东省重工建筑设计院有限公司，广州 510308； 2 西安建筑科技大学土木工程学院，西安 710055）

［摘要］为了研究方钢管混凝土柱的粘结滑移性能，进行了9个不同长细比、宽厚比的方钢管混凝土柱的推出试验。通过测量荷载、加载端和固定端的钢管与混凝土滑移，并根据试验结果得出了典型P-s曲线，分析了影响方钢管混凝土粘结强度的主要因素，可对方钢管混凝土粘结滑移性能的进一步试验研究和理论分析提供参考。

［关键词］方钢管混凝土；粘结强度；推出试验

中图分类号：TU398.7文献标识码：A文章编号：1002-848X(2011)06-0068\|03

Experiment research on bond strength of concrete-filled square steel tubes

Ren Shaohua¹,  Zhao Hongtie²,  Xue Jianyang²(1 Guangzhou Zhonggong Architectural Design Institute Co., Ltd., Guangzhou 510308, China;2 School of Civil Engineering,  Xi’an University of Architecture & Technology,  Xi’an 710055, China)

Abstract:In order to study the bond-slip properties between square steel tubes and concrete, 9 push-out tests of concrete-filled square steel tubes (CFST) with different specification were carried out. In the push-out tests, the strains of square steel tubes and the local slip were both measured by experimental method, and the classic P-s curves of the experimental results were obtained, the factors of effect on the bond strength were also analyzed. It will be helpful for the further experimental researches on the bond-slip behaviors of CFST structures.

Keywords:concrete-filled square steel tubes; bond strength; push-out test

*国家自然科学基金资助项目（50478044）。

作者简介：任少华，硕士，Email:50409596@qq.com。

参考文献