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钢支撑及框架-中心支撑双重抗侧力体系研究现状、不足及改进

, PP. 67-75

Keywords: 钢支撑,双重抗侧力体系,有限元方法,低周疲劳,地震响应

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Abstract:

本文在总结钢支撑滞回性能及高层双重抗侧力体系研究现状的基础上,分析了现象学、物理学及有限元3种钢支撑模拟方法的优缺点,并针对现有支撑模拟方法及支撑疲劳累积损伤研究的不足提出了可行的改进方法。分析了框架-中心支撑双重体系研究中若干关键性问题之后,指出了我国《高层民用建筑钢结构技术规程》(JGJ99-98)等有关规范中关于双重体系设计相关条款存在的分歧及不足,并提出了通过双重结构体系在罕遇地震下的反应特性模拟分析来统一认识的建议。

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