| RC框架弹塑性位移的解构规则与构件的目标侧移角 |
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| 引用本文： | 罗文斌, 钱稼茹. RC框架弹塑性位移的解构规则与构件的目标侧移角[J]. 工程力学, 2003, 20(5): 32-36. |
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| 作者姓名： | 罗文斌 钱稼茹 |
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| 作者单位： | 清华大学土木工程系, 北京, 100084 |
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| 基金项目： | 国家自然科学基金重大项目(59895410) |
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| 摘 要： | 研究了RC框架在弹塑性状态下层间位移与构件变形之间的关系。引入塑性变形分布因子作为参数,建立了框架节的塑性变形分布因子与位移延性系数、强柱系数之间的关系,即χ-μδ-ηc关系;在此基础上,提出了RC框架弹塑性位移的解构规则,可用于求解构件的目标侧移角,从而实现了基于位移设计的关键一步。
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| 关 键 词： | 结构工程 抗震 理论与分析 基于位移的设计 RC框架节 位移解构 目标侧移角 |
| 文章编号： | 1000-4750(2003)05-0032-05 |
| 收稿时间： | 2002-04-22 |
| 修稿时间： | 2002-05-31 |
RULES OF ELASTOPLASTIC DRIFT DECOMPOSITION OF RC FRAMES AND THE TARGET DRIFT OF MEMBERS |
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| LUO Wen-bin, QIAN Jia-ru. RULES OF ELASTOPLASTIC DRIFT DECOMPOSITION OF RC FRAMES AND THE TARGET DRIFT OF MEMBERS[J]. Engineering Mechanics, 2003, 20(5): 32-36. |
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| Authors: | LUO Wen-bin QIAN Jia-ru |
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| Affiliation: | Tsinghua University, Beijing 100084, China |
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| Abstract: | Relations between the elastoplastic inter-story drift of frame and the deformation of members are studied. Introducing the plastic deformation distribution factor cas a parameter, the relations among c, displacement ductility ratio dm and column overstrength factor ch, namely chmcd-- equations, are presented. Furthermore, the rules of drift decomposition are developed. By decomposing the drift demand, the target deformability of beams and columns are determined, which is a key step of the displacement-based design. |
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| Keywords: | structure engineering earthquake resistance theoritical analysis displacement-based design RC frame drift decomposition target deformability |
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