| 损伤理论在既有混凝土桥梁承载力研究中的应用 |
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| 引用本文： | 陈建英,唐华,唐小弟.损伤理论在既有混凝土桥梁承载力研究中的应用[J].中南林业科技大学学报,2007,27(4):76-80,89. |
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| 作者姓名： | 陈建英 唐华 唐小弟 |
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| 作者单位： | 中南林业科技大学土木建筑与力学学院 湖南长沙410004(陈建英，唐小弟)，湖南省交通设计院 湖南长沙410076(唐华) |
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| 基金项目： | 中南林业科技大学引进高层次人才资助项目 |
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| 摘 要： | 以一既有混凝土简支梁为研究对象,基于损伤力学理论方法,研究老化混凝土的力学性能,建立了老化混凝土本构模型.利用此本构模型,对既有混凝土简支试验梁进行了数值模拟,验证了基于损伤力学理论建立的混凝土本构模型的正确性.
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| 关 键 词： | 土建工程 钢筋混凝土桥梁 损伤力学 本构模型 有限元 |
| 文章编号： | 1673-923X（2007）04-0076-05 |
| 收稿时间： | 2007-03-13 |
| 修稿时间： | 2007-03-13 |
Application of Damage Mechanics to the Bearing Capacity of Existing Concrete Bridges |
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| CHEN Jian-ying,TANG Hua,TANG Xiao-di.Application of Damage Mechanics to the Bearing Capacity of Existing Concrete Bridges[J].Journal of Central South Forestry University,2007,27(4):76-80,89. |
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| Authors: | CHEN Jian-ying TANG Hua TANG Xiao-di |
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| Institution: | School of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, Hunan, China |
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| Abstract: | Using a method from Damage Mechanics and putting its engineering background on some existing simply-supported concrete beam,this paper researches the mechanical performance of the aging concrete and then achieves some aging concrete constitutive equations.By means of these equations,the paper analyzes the performance of this existing simply-supported beam with the method of numerical simulation.Results show that the constitutive equations based on Damage Mechanics are correct and justified. |
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| Keywords: | civil engineering concrete bridge damage mechanics FEM constitutive equations |
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