Confinement model for concrete in circular and square FRP-concrete-steel double-skin composite columns

被引：53

作者：

Ozbakkaloglu, Togay ^{[1
]}

Fanggi, Butje Alfonsius Louk ^{[1
]}

Zheng, Junai ^{[1
]}

机构：

[1] Univ Adelaide, Sch Civil Environm & Min Engn, Adelaide, SA 5005, Australia

来源：

MATERIALS & DESIGN | 2016年 / 96卷

关键词：

Fiber-reinforced polymer (FRP); Concrete; High-strength concrete (HSC); Composite columns; Confinement; Stress-strain relations; TUBULAR COLUMNS; COMPRESSIVE BEHAVIOR; FLEXURAL BEHAVIOR; PERFORMANCE; TUBE; RETROFIT; HOLLOW; PLAIN; HSC;

D O I：

10.1016/j.matdes.2016.02.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a new design-oriented model for predicting the ultimate failure conditions of concrete in fiber-reinforced polymer (FRP)-concrete-steel double-skin tubular columns (DSTCs). An experimental test database consisting of all the axial compression test results for DSTCs available in the published literature is presented and used to assess the performance of four existing models to predict the compressive strength and ultimate axial strain of concrete in DSTCs. A new concrete confinement model that incorporates the failure mode of the inner steel tube is proposed. Both the strength and strain predictions of the proposed model are in close agreement with test results to an accuracy better than the existing models. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：458 / 469

页数：12

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