| 基于集中损伤力学的钢筋混凝土框架结构非线性分析 |
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| 引用本文： | 喻磊,姚谦峰,张荫. 基于集中损伤力学的钢筋混凝土框架结构非线性分析[J]. 西安建筑科技大学学报(自然科学版), 2006, 38(4): 518-522 |
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| 作者姓名： | 喻磊 姚谦峰 张荫 |
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| 作者单位： | 西安建筑科技大学土木工程学院,陕西,西安,710055 |
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| 基金项目： | 国家十五科技攻关项目资助(2002BA806B05)，陕西省重点试验室项目资助(O2JS28) |
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| 摘 要： | 连续体模型适用于一些相对简单的结构,对于许多工程结构分析来说,连续介质力学并没有提供适宜的理论框架.介绍了采用集中损伤力学方法进行钢筋混凝土框架结构非线性分析的基本框架.该方法可用于描述混凝土开裂导致构件刚度退化等不可逆过程.对于构件端部的非弹性铰,使用了半耦合的损伤函数与屈服函数.通过编制的非线性有限元程序分别对反复荷载作用下梁柱节点及两构件框架结构的受力性能进行数值模拟,计算结果与试验数据吻合较好.
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| 关 键 词： | 集中损伤力学 集中耗散假设 损伤函数 钢筋混凝土框架 非线性分析 |
| 文章编号： | 1006-7930（2006）04-0518-05 |
| 收稿时间： | 2006-03-24 |
| 修稿时间： | 2006-03-24 |
Nonlinear analysis of reinforced concrete frames based on lumped damage mechanics |
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| YU Lei,YAO Qian-feng,ZHANG Yin. Nonlinear analysis of reinforced concrete frames based on lumped damage mechanics[J]. Journal of Xi'an University of Architecture & Technology, 2006, 38(4): 518-522 |
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| Authors: | YU Lei YAO Qian-feng ZHANG Yin |
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| Abstract: | Continuum models can be used for relatively simple structures.In many real engineering applications,continuum mechanics do as not provide a suitable theoretical framework.A general framework for the nonlinear analysis of reinforced concrete frames based on lumped damage mechanics is presented in this paper.It can be used for describing concrete cracking process which induces structural member stiffness degradation.Half-coupling damage and yield functions are adopted for non-elastic hinges at the ends of structural members.With developed nonlinear finite element program,the model is evaluated with numerical simulation of the beam-column joint and two member frame specimens under reversible loading.There is good agreement between the calculating results and the measured records. |
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| Keywords: | lumped damage mechanics lumped dissipation hypothesis damage function reinforced concrete frame nonlinear analysis |
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