| 低配筋轻骨料混凝土梁裂缝宽度的试验研究 |
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| 引用本文： | 唐兴荣.低配筋轻骨料混凝土梁裂缝宽度的试验研究[J].华中科技大学学报(城市科学版),2002,19(3):28-32. |
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| 作者姓名： | 唐兴荣 |
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| 作者单位： | 苏州科技学院,城市建设系,江苏,苏州,215011 |
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| 基金项目： | 《混凝土结构设计规范》课题“轻骨料混凝土结构性能综合研究”专题项目 |
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| 摘 要： | 在6根煤矸石混凝土梁和9根浮石混凝土梁试验的基础上,对低配筋轻骨料混凝土梁裂缝开展机理作了详细的分析.在试验结果和分析的基础上,提出了低配筋轻骨料混凝土梁裂缝开展宽度验算公式,并改进了纵向受拉钢筋的内力臂系数、钢筋应变不均匀系数的计算公式,使裂缝宽度的计算更为合理.
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| 关 键 词： | 轻骨料混凝土 低配筋 裂缝宽度 裂缝机理 |
| 文章编号： | 1000-5730(2002)03-0028-05 |
| 修稿时间： | 2002年4月15日 |
Experiment Study of Crack Width for Lowly Reinforced Light-weight Concrete Beams |
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| Experiment Study of Crack Width for Lowly Reinforced Light-weight Concrete Beams.Experiment Study of Crack Width for Lowly Reinforced Light-weight Concrete Beams[J].Journal of Huazhong University of Science and Technology,2002,19(3):28-32. |
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| Authors: | Experiment Study of Crack Width for Lowly Reinforced Light-weight Concrete Beams |
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| Abstract: | Based on experiment of 6 lowly reinforced colliery waste concrete beams and 9 lowly reinforced pumice concrete beams, the special crack patterns and cracking mechanism of lowly reinforced light weight concrete beams are analyzed in details. On the basis of experiment data, the formula to predict the crack width of lowly reinforced light weight concrete beams is proposed. The formula for the internal lever arm coefficient of tensile steel in cracking cross section and strain uneven coefficient of tensile steel are improved, which makes the calculation of crack width of lowly reinforced light weight concrete beams more reasonable. |
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| Keywords: | light weight concrete lowly reinforced crack width crack mechanism |
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