| 混凝土保护层厚度对钢筋混凝土受弯构件裂缝宽度影响的试验研究 |
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| 引用本文： | 蓝宗建,张正,丁大钧.混凝土保护层厚度对钢筋混凝土受弯构件裂缝宽度影响的试验研究[J].云南工业大学学报,1991(1). |
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| 作者姓名： | 蓝宗建 张正 丁大钧 |
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| 作者单位： | 东南大学，云南工学院，东南大学 |
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| 摘 要： | 本文通过22根钢筋混凝土受弯构件的试验,探讨了混凝土保护层厚度对裂缝间距和裂缝宽度的影响。试验结果表明,裂缝间距和裂缝宽度随着混凝土保护层厚度的增大而增大。同时,本文在分析试验结果的基础上,对裂缝宽度计算的有关问题进行了更深入的研究,改进了纵向受拉钢筋应变不均匀系数的计算公式,使其更好地符合试验结果。
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| 关 键 词： | 受弯构件 保护层厚度 裂缝宽度 |
Experimental Study of Effectof Cover Thickness on Crack Width |
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| Authors: | Lan ZongJian |
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| Affiliation: | Lan ZongJian(Southeast University)Zhang Zheng(Yun Nan Institute of Technology)Ding DaJun(Southeast University) |
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| Abstract: | In this paper,according to the experimental results of 22 beams, we probe into the influence of concrete cover thickness on crack width and crack spacing.Experiment shows that crack spacing and crack width get big with increase of cover thickness,and on the basis of experimental results,we deeply study the calculational methods for crack width con- cerned,we also improve calculational formula for uneven coefficient of longitudinal tension bar strain,therefore,the calculational results can satisfactorily conform to experimental results. |
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| Keywords: | Flexural member of reinforced concrete Cover thickness Crack width |
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