GFRP管钢筋混凝土偏压长柱的试验研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (2): 21-27.

GFRP管钢筋混凝土偏压长柱的试验研究

王宝立^1*, 辛庚华², 王清湘³

1.大连市建筑设计研究院有限公司,大连116021;
2.大连市城市设计研究院,大连116021;
3.大连理工大学海岸与近海工程国家重点实验室,大连116024

收稿日期:2014-06-11 出版日期:2015-02-28 发布日期:2021-09-14
作者简介:王宝立(1986-),男,硕士,工程师,主要从事结构设计及混合结构研究,dutwbl@gmail.com。

EXPERIMENTAL STUDY OF LONG REINFORCED CONCRETE-FILLED GFRP TUBES COLUMNS SUBJECTED TO ECCENTRIC LOAD

WANG Bao-li^1*, XIN Geng-hua², WANG Qing-xiang³

1. Dalian Architectural Design & Research Institute Co., Ltd., Dalian 116021,China;
2. Dalian Urban Academy of Design, Dalian 116021, China;
3. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

Received:2014-06-11 Online:2015-02-28 Published:2021-09-14

摘要/Abstract

摘要： 通过15个GFRP管钢筋混凝土长柱和1个无GFRP管约束的钢筋混凝土柱在偏心受压作用下的试验,研究了其破坏形态及力学性能,并分析了混凝土强度、长径比、偏心距等因素对柱力学性能的影响。试验结果表明,GFRP管的约束作用能有效提高柱的承载力及延性;随着混凝土强度的提高,GFRP管钢筋混凝土柱的承载力和刚度增大;随长径比和偏心距的增大,GFRP管对混凝土的约束效果降低,柱的承载力降低;平截面假定适用于GFRP管钢筋混凝土偏压长柱的计算。

关键词: GFRP管钢筋混凝土, 柱, 偏心受压, 承载力, 延性, 侧向挠度

Abstract: Fifteen long reinforced concrete-filled GFRP tubes columns and one RC column were tested under eccentric load to investigate the mechanical properties of reinforced concrete-filled GFRP tubes column. The failure shape and mechanical properties are studied, and factors such as concrete strength, ratio of length to diameter and eccentricity that affected mechanical properties of the columns are analyzed. Test results indicate that bearing capacity and ductility of the columns are enhanced effectively as a results of the confinement of GFRP tube. Bearing capacity and stiffness of the columns increase with elevation of concrete strength. The confinement of GFRP tube and the bearing capacity of the columns drop with the increasing of ratio of length to diameter and eccentricity. Plane-section assumption is applicable to calculation of long reinforced concrete-filled GFRP tubes columns subjected to eccentric load.

Key words: reinforced concrete-filled GFRP tubes, column, eccentric compression, bearing capacity, ductility, lateral deflation

中图分类号:

TB332

王宝立, 辛庚华, 王清湘. GFRP管钢筋混凝土偏压长柱的试验研究[J]. 复合材料科学与工程, 2015, 0(2): 21-27.

WANG Bao-li, XIN Geng-hua, WANG Qing-xiang. EXPERIMENTAL STUDY OF LONG REINFORCED CONCRETE-FILLED GFRP TUBES COLUMNS SUBJECTED TO ECCENTRIC LOAD[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(2): 21-27.

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