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（1 廣東省重工建筑設(shè)計(jì)院有限公司，廣州 510308； 2 西安建筑科技大學(xué)土木工程學(xué)院，西安 710055）

［摘要］為了研究方鋼管混凝土柱的粘結(jié)滑移性能，進(jìn)行了9個(gè)不同長細(xì)比、寬厚比的方鋼管混凝土柱的推出試驗(yàn)。通過測量荷載、加載端和固定端的鋼管與混凝土滑移，并根據(jù)試驗(yàn)結(jié)果得出了典型P-s曲線，分析了影響方鋼管混凝土粘結(jié)強(qiáng)度的主要因素，可對方鋼管混凝土粘結(jié)滑移性能的進(jìn)一步試驗(yàn)研究和理論分析提供參考。

［關(guān)鍵詞］方鋼管混凝土；粘結(jié)強(qiáng)度；推出試驗(yàn)

中圖分類號：TU398.7文獻(xiàn)標(biāo)識碼：A文章編號：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

*國家自然科學(xué)基金資助項(xiàng)目（50478044）。

作者簡介：任少華，碩士，Email:50409596@qq.com。

參考文獻(xiàn)