共 3 条
Crack elongation and its width of large depth reinforced concrete beams
被引：0
作者：
管俊峰
[1
,2
]
赵顺波
[1
,2
]
黄承逵
[1
]
机构：
[1] School of Civil and Hydraulic Engineering,Dalian University of Technology
[2] School of Civil Engineering and Communication,North China Institute of Water Conservancy and Hydroelectric Power
关键词：
reinforced concrete;
beam;
large depth of normal section;
crack elongation;
average crack spacing;
ratio of crack width;
D O I：
暂无
中图分类号：
TU375.1 [梁];
学科分类号：
081304 ;
081402 ;
摘要：
In order to meet the requirement of structural inspection,the crack spacing and crack width at various heights in the tensile zone of six large depth reinforced concrete beams were measured under several loading levels of serviceability state.The effects of the depth of normal section beams on the crack spacing and crack width were analyzed,and the modified model is proposed for calculating the average crack spacing by thinking about the depth of normal section,the reinforcement arrangement and the effective reinforcement ratio.The relationships of crack widths at any position in the tensile zone and at the reinforcement level on the side surface of beam were studied.By theoretical and statistical analysis,a method is proposed to calculate the ratios of crack widths between any position and the reinforcement level on the side surface of large depth reinforced concrete beams.
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页码：631 / 635
页数：5
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