Comparison of main models for size effect on shear strength of reinforced and prestressed concrete beams

被引：38

作者：

Yu, Qiang ^{[1
]}

Le, Jia-Liang ^{[2
]}

Hubler, Mija H. ^{[3
,4
]}

Wendner, Roman ^{[5
,6
]}

Cusatis, Gianluca ^{[7
]}

Bazant, Zdenek P. ^{[7
]}

机构：

[1] Univ Pittsburgh, Dept Civil & Environm Engn, Benedum Hall, Pittsburgh, PA 15261 USA

[2] Univ Minnesota, Dept Civil Engn, 500 Pillsbury Dr, Minneapolis, MN 55455 USA

[3] Univ Colorado, Campus Box 428, Boulder, CO 80309 USA

[4] Univ Colorado, Dept Civil Environm & Architectural Engn, Campus Box 428, Boulder, CO 80309 USA

[5] Univ Nat Resources & Life Sci BOKU, Christian Doppler Lab LiCRoFast, Dept Civil Engn & Nat Hazards, Vienna, Austria

[6] Univ Nat Resources & Life Sci BOKU, Inst Struct Engn, Dept Civil Engn & Nat Hazards, Vienna, Austria

[7] Northwestern Univ, CEE Dept, 2145 Sheridan Rd, Evanston, IL 60208 USA

来源：

STRUCTURAL CONCRETE | 2016年 / 17卷 / 05期

基金：

美国国家科学基金会;

关键词：

shear strength; size effect; reinforced concrete; fracture energy; multivariate database; STIRRUPS; FAILURE;

D O I：

10.1002/suco.201500126

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a critical comparison of the existing code provisions for the shear strength of concrete beams. The comparison is based on the computerized filtering-out of the in-evitable statistical bias from the available multivariate database on shear strength, on an examination of the predicted size effects on shear strength and their underlying hypotheses and on the results of recent high-fidelity numerical simulations of shear failure. In addition to examining the existing models, the present comparison also provides several key considerations for testing the scientific soundness of any model of shear failure in concrete beams, which is necessary for future revisions to the design code provisions.

引用

页码：778 / 789

页数：12

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