纵筋率对无腹筋约束梁抗剪性能影响的研究

李立仁; 蒋传星; 支运芳

doi:10.11835/j.issn.1674-4764.2008.01.014

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纵筋率对无腹筋约束梁抗剪性能影响的研究

更新时间：2023-11-28

- 纵筋率对无腹筋约束梁抗剪性能影响的研究
- Effect of Longitudinal Reinforcement Rate on Shear Behavior of Beams without Web Reinforcement Restriction
- 土木与环境工程学报（中英文） 2008年30卷第1期页码：49-53
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- DOI：10.11835/j.issn.1674-4764.2008.01.014
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- 纸质出版：2008
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李立仁, 蒋传星, 支运芳. 纵筋率对无腹筋约束梁抗剪性能影响的研究[J]. 土木与环境工程学报（中英文）, 2008,30(1):49-53.

LI Li-ren, JIANG Chuan-xing, ZHI Yun-fang. Effect of Longitudinal Reinforcement Rate on Shear Behavior of Beams without Web Reinforcement Restriction[J]. Journal of Civil and Environmental Engineering, 2008, 30(1): 49-53.
李立仁, 蒋传星, 支运芳. 纵筋率对无腹筋约束梁抗剪性能影响的研究[J]. 土木与环境工程学报（中英文）, 2008,30(1):49-53. DOI： 10.11835/j.issn.1674-4764.2008.01.014.

LI Li-ren, JIANG Chuan-xing, ZHI Yun-fang. Effect of Longitudinal Reinforcement Rate on Shear Behavior of Beams without Web Reinforcement Restriction[J]. Journal of Civil and Environmental Engineering, 2008, 30(1): 49-53. DOI： 10.11835/j.issn.1674-4764.2008.01.014.

摘要

各国规范在以往的对钢筋混凝土梁斜截面抗剪承载力性能的试验研究中

研究都是按较高纵筋率来进行

建立在这种纵筋率较高的梁的受剪性能试验数据基础上的规范抗剪设计方法可能偏差较大。而本文按较低纵筋率来研究梁的抗剪性能。试验表明

不同纵筋率对梁的抗剪性能和裂缝发展状况有重要影响

规范公式用于小纵筋率无腹筋约束梁受剪设计时可能偏不安全。

Abstract

Previous researches on shear behavior of inclined sections in reinforced concrete beams used to be carried out on a comparatively high longitudinal reinforcement ratio in the codes of various countries.However

the shear design methods based on the data obtained from these researches may have distinguished deviations.This paper studies the shear behavior on a comparatively low longitudinal reinforcement ratio.Research has indicated that different longitudinal reinforcement ratios have significant impact on the shear behavior and the development of cracks in the beams

and the shear design equation in the code applied to beams without wed reinforcement restrained maybe not safe enough.

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