| 高强轻骨料混凝土梁裂缝和刚度的试验与分析 |
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| 引用本文： | 秦福华,邵永健,许佳修,蔡华.高强轻骨料混凝土梁裂缝和刚度的试验与分析[J].工业建筑,2006,36(8):82-85. |
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| 作者姓名： | 秦福华 邵永健 许佳修 蔡华 |
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| 作者单位： | 1. 中冶集团建筑研究总院,华东分院,上海,20940
2. 苏州科技学院,土木工程系,苏州,215011 |
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| 摘 要： | 在6根高强页岩陶粒混凝土梁和2根普通高强混凝土梁试验研究和相关分析的基础上,提出了高强页岩陶粒混凝土梁正截面承载力的计算方法。基于由试验数据分析得到的内力臂系数η的值和纵向受拉钢筋应变不均匀系数ψ的计算公式,提出了高强页岩陶粒混凝土梁的抗弯刚度、挠度和裂缝宽度的计算方法,供相关规程修订和工程实践参考。
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| 关 键 词： | 高强页岩陶粒混凝土梁 内力臂系数 受拉钢筋应变不均匀系数 正截面承载力 裂缝 刚度 |
| 收稿时间： | 2006-04-03 |
| 修稿时间： | 2006年4月3日 |
EXPERIMENTAL RESEARCH ON CRACKING AND RIGIDITY OF HIGH-STRENGTH LIGHT-WEIGHT AGGREGATE CONCRETE BEAMS |
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| Qin Fuhua,Shao Yongjian,Xu Jiaxiu,Cai Hua.EXPERIMENTAL RESEARCH ON CRACKING AND RIGIDITY OF HIGH-STRENGTH LIGHT-WEIGHT AGGREGATE CONCRETE BEAMS[J].Industrial Construction,2006,36(8):82-85. |
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| Authors: | Qin Fuhua Shao Yongjian Xu Jiaxiu Cai Hua |
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| Abstract: | Based on the experimental research of six high-strength shale ceramsite concrete beams and two normal density concrete beams,the calculation method of carrying capacity of normal section of high-strength shale ceramsite concrete beams was put forward.Based on the coefficient of internal force couple arm η and coefficient of non-uniform distribution of longitudinal bar strain ψ which were obtained from the experimental data,the calculation methods of bending rigidity of section,deflection and crack width of high-strength shale ceramsite concrete beams were put forward.The results may be referenced for revising relevant specifications and practical engineering. |
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| Keywords: | high-strength shale ceramsite concrete beams coefficient of internal force couple arm coefficient of nonuniform distribution of longitudinal bar strain carrying capacity of normal section cracking rigidity |
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