Experimental Study on Correlation between Crack Width and Depth of Reinforced Concrete Beams

张菊辉; 李粤; 王伟

doi:10.13409/j.cnki.jdpme.2018.03.009

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Experimental Study on Correlation between Crack Width and Depth of Reinforced Concrete Beams

更新时间：2025-12-11

- Experimental Study on Correlation between Crack Width and Depth of Reinforced Concrete Beams
- Vol. 38, Issue 3, Pages: 465-471(2018)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2018.03.009
  CLC： U375.1
- Published：2018
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[1]张菊辉,李粤,王伟.钢筋混凝土梁裂缝宽度与裂缝深度的相关性试验研究[J].防灾减灾工程学报,2018,38(03):465-471.

张菊辉, 李粤, 王伟. Experimental Study on Correlation between Crack Width and Depth of Reinforced Concrete Beams[J]. 2018, 38(3): 465-471.
[1]张菊辉,李粤,王伟.钢筋混凝土梁裂缝宽度与裂缝深度的相关性试验研究[J].防灾减灾工程学报,2018,38(03):465-471. DOI： 10.13409/j.cnki.jdpme.2018.03.009.

张菊辉, 李粤, 王伟. Experimental Study on Correlation between Crack Width and Depth of Reinforced Concrete Beams[J]. 2018, 38(3): 465-471. DOI： 10.13409/j.cnki.jdpme.2018.03.009.

摘要

裂缝的出现极大地降低梁的使用寿命。裂缝宽度和裂缝深度作为裂缝的两个主要参数

目前对前者的研究相对成熟

而后者的研究甚少。通过对8根钢筋混凝土梁的静力加载试验

研究由荷载引起的结构裂缝宽度与深度的相关性发展形态

并考虑混凝土强度、保护层厚度和钢筋直径对裂缝特征的影响。结果表明:混凝土梁裂缝宽度的发展主要与钢筋配筋率有关;梁的开裂荷载与混凝土的劈裂抗拉强度有一定关系;裂缝宽度与深度的相关性大致呈三段式的发展

并拟合二者的曲线。

Abstract

The emergence of cracks will significantly reduce the service life of beama.Crack width and depth are two main parameters of cracks

but the studies of the former is relatively mature and the latter is rare.In this paper

static loading tests were conducted on eight samples of reinforced concrete beams and the correlation betweenthewidth and depth of cracks due to the loads was studied.The influence of the concrete strength

the concrete cover thickness and the rebar diameter on the crack characteristics was investigated.The experimental results indicate that the development of the crack width in concrete beams is mainly related to the reinforcement ratio of steel bars.The splitting tensile strength has a certain impact on the cracking load.The correlation curve between crack width and depth is fitted

which has three stages.

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references

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