| 混凝土受弯构件挠度与裂缝计算公式的可靠度分析 |
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| 引用本文： | 陈晓强,伋雨林.混凝土受弯构件挠度与裂缝计算公式的可靠度分析[J].华中科技大学学报(城市科学版),2004,21(2):84-87. |
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| 作者姓名： | 陈晓强 伋雨林 |
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| 作者单位： | 华中科技大学,土木工程与力学学院,湖北,武汉,430074 |
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| 摘 要： | 应用蒙特卡洛(Monte Carlo)法，按荷载效应的不同比值。对《混凝土结构设计规范》(GB50010-2001)中受弯构件的挠度、最大裂缝宽度计算公式进行可靠度分析。结果表明，《规范》公式的可靠性水平大体上可以接受．但对于承受恒载为主、变形不可逆的情况，公式的可靠性水平偏低，应适当提高．
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| 关 键 词： | 混凝土受弯构件 挠度 裂缝宽度 可靠度 可靠指标 蒙特卡洛法 |
| 文章编号： | 1672-7037(2004)02-0084-04 |
| 修稿时间： | 2004年2月23日 |
Reliability Analysis of the Formulae for Calculating Reinforced Concrete Flexural Members' Deflections and Maximum Crack Widths |
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| CHEN Xiao-qiangJI Yu-lin.Reliability Analysis of the Formulae for Calculating Reinforced Concrete Flexural Members'''' Deflections and Maximum Crack Widths[J].Journal of Huazhong University of Science and Technology,2004,21(2):84-87. |
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| Authors: | CHEN Xiao-qiangJI Yu-lin |
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| Affiliation: | CHEN Xiao-qiang~1JI Yu-lin~1 |
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| Abstract: | For reinforced concrete flexural members, the Code for Design of Concrete Structures (GB 50010-2001) gives formulae to calculate their deflections and maximum crack widths. The Monte Carlo simulation is used to analyze the reliability of these formulae, and the influence of different ratio of load is studied. The analytical results indicate that the reliability is acceptable in most situations, while it is lower if the load is dead load generally or the deformations are not reversible. So it is needed to raise the reliability level for the latter situation. |
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| Keywords: | reinforced concrete flexural member deflection crack width degree of reliability reliability target Monte Carlo simulation |
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