Ductility and failure mode of HSC and HSFRC tension stiffening members: a numerical investigation on singly reinforced beams

被引：1

作者：

Sangiorgio, Filippo ^{[1
]}

机构：

[1] AECOM Nord, Civil Infrastruct Dept, Stockholm, Sweden

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 15期

基金：

澳大利亚研究理事会;

关键词：

High-strength concrete; high-strength fiber reinforced concrete; reinforced concrete structures; cross-section ductility; failure mode; numerical simulation; MECHANICAL-PROPERTIES; STEEL FIBERS; RC BEAMS; CONCRETE; BEHAVIOR;

D O I：

10.1080/15376494.2022.2070307

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-Strength Concrete (HSC) tension stiffening members with high tensile strength of concrete may have a low or even absent cross-section ductility, which affects the risk of occurrence of brittle flexural failures. This paper investigates numerically the cause of this problem by comparing and analyzing the moment-curvature relationship of diverse cross-section samples and evaluates the alternative of replacing HSC with High-Strength Fiber Reinforced Concrete (HSFRC) to address it. To perform this task, it has been proposed an original approach to interpret the moment-curvature relationships in terms of non-effective curvature, reduction of ductility index and effective ductility.

引用

页码：3141 / 3155

页数：15

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