| 钢筋混凝土受弯构件裂缝宽度计算方法的比较 |
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| 引用本文： | 李志华,赵勇,尚世仲. 钢筋混凝土受弯构件裂缝宽度计算方法的比较[J]. 四川建筑科学研究, 2007, 33(2): 11-14 |
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| 作者姓名： | 李志华 赵勇 尚世仲 |
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| 作者单位： | 同济大学,上海,200092;同济大学,上海,200092;同济大学,上海,200092 |
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| 摘 要： | 对国内外规范采用的裂缝宽度计算公式进行了比较分析。此外，根据国内外大量的受弯构件裂缝宽度试验数据，对这些裂缝宽度计算公式的精度进行了计算和比较研究。基于对比分析结果，结合大量的受弯构件裂缝宽度试验数据，对采用GB50010—2002《混凝土结构设计规范》的裂缝宽度计算模式，建议了受弯构件钢筋水平位置处及受拉表面裂缝宽度计算公式，该公式的计算结果与试验数据吻合较好。
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| 关 键 词： | 规范比较 裂缝宽度计算公式 精度 平均裂缝宽度 最大裂缝宽度 |
| 文章编号： | 1008-1933（2007）02-0011-04 |
| 修稿时间： | 2006-09-18 |
Comparison of crack width equations for reinforced concrete members with flexure |
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| LI Zhihua,ZHAO Yong,SHANG Shizhong. Comparison of crack width equations for reinforced concrete members with flexure[J]. Building Science Research of Sichuan, 2007, 33(2): 11-14 |
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| Authors: | LI Zhihua ZHAO Yong SHANG Shizhong |
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| Affiliation: | Tongji University, Shanghai 200092,China |
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| Abstract: | The comparison of the formulas for calculating crack width adopted in several codes is carried out in this paper. Then, a study on the accuracy of these formulas for calculating crack width is made on the basis of the existing test date obtained from flexural members. According to the results of the comparison, a new crack width equation is proposed on the basis of the calculation model on crack width adopted in China code GB50010 -2002. Use of that equation is supported by an evaluation of extensive test date obtained from flexural members. |
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| Keywords: | code comparison crack width equation accuracy average crack width maximum crack width |
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