Flexural behavior of RC beams with regular square or circular web openings

被引：54
|
作者：
Aykac, Bengi [1 ]
Kalkan, Ilker [2 ]
Aykac, Sabahattin [1 ]
Egriboz, Yusuf Emre [3 ]
机构：
[1] Gazi Univ, Dept Civil Engn, Fac Engn, TR-06570 Ankara, Turkey
[2] Kirikkale Univ, Fac Engn, Dept Civil Engn, TR-71450 Kirikkale, Turkey
[3] ERS Construct Co, Kiev, Ukraine
来源：
ENGINEERING STRUCTURES | 2013年 / 56卷
关键词：
Web opening; Web reinforcement; Diagonal reinforcement; Reinforced concrete beam with openings; Vierendeel truss; REINFORCED-CONCRETE BEAMS; DEEP BEAMS; STRENGTH; DESIGN; TESTS;
D O I：
10.1016/j.engstruct.2013.08.043
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a study aimed at investigating the influence of multiple web openings along the length of an RC beam on its flexural behavior. A total of nine rectangular beams were tested. Diagonal reinforcement around openings effectively prevented premature failure of some specimens due to Vierendeel action, the expected failure mode according to bending moment-axial force interaction diagrams. Longitudinal rebars and full-depth stirrups adjacent to openings and short stirrups in the chords prevented beam-type and frame-type shear failures. The length of the plastic failure mechanism increased in the presence of multiple openings compared to beams with a single opening. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2165 / 2174
页数：10
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