| 基于粘结滑移的衬砌裂缝宽度计算模型研究 |
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| 引用本文： | 贺欢.基于粘结滑移的衬砌裂缝宽度计算模型研究[J].长江科学院院报,2022,39(7):149-153. |
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| 作者姓名： | 贺欢 |
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| 作者单位： | 中国电建集团中南勘测设计研究院有限公司,长沙 410014 |
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| 摘 要： | 基于粘结滑移理论提出了一种“实体单元-影子节点-梁单元”的传力体系。以某一模型试验为例,将钢筋混凝土衬砌采用分离式建模并构建此传力体系。通过有限元计算求得受力钢筋的应力,结合规范的计算公式求出裂缝的最大宽度。与试验结果进行对比,验证了有限元建模运用此传力体系并结合规范公式计算最大裂缝宽度的可行性,可为同类工程最大裂缝宽度提供一种新的计算方法。
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| 关 键 词： | 钢筋混凝土衬砌 粘结滑移 传力体系 最大裂缝宽度 有限元 |
| 收稿时间： | 2021-04-03 |
| 修稿时间： | 2021-09-20 |
A Calculation Model for Lining Crack Width Based on Bond Slip |
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| HE Huan.A Calculation Model for Lining Crack Width Based on Bond Slip[J].Journal of Yangtze River Scientific Research Institute,2022,39(7):149-153. |
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| Authors: | HE Huan |
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| Affiliation: | Power China Zhongnan Engineering Corporation Limited,Changsha 410014,China |
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| Abstract: | On the basis of the bond-slip theory,a force transmission system of “solid element to shadow node and to beam element” is proposed and applied to the separated modelling of a reinforced concrete lining structure.The stress of the stressed steel bar is calculated by finite element method,and the maximum width of crack is obtained in association with the calculation formula specified in code.Compared with test results,the feasibility of calculating the maximum crack width of lining by using the force transfer system of finite element modeling in association with code formula is verified.The research offers a novel calculation method for the maximum crack width of similar projects. |
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| Keywords: | reinforced concrete lining bond slip force transmission system maximum crack width finite element |
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