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分别按设防烈度为6度、7度、7度(0.15g)、8度和8度(0.30g)时规范最低要求设计了5个高层框架-剪力墙结构,作为分析实例,采用增量动力分析方法(IDA)初步研究了其在大震作用下的抗倒塌能力。得到以下结论:构件形成塑性铰或破坏的顺序符合概念设计思想,满足多道抗震设防的理念;框架-剪力墙结构具有明显的屈服点;符合规范要求的高层框架-剪力墙结构基本满足“大震不倒”的设防目标。
Five high-rise frame-shear wall structures were designed according to the minimum requirements of fortification intensity of 6 degrees, 7 degrees, 7 degrees (0.15g), 8 degrees and 8 degrees (0.30g) respectively. As an example, Dynamic analysis method (IDA) preliminary study of its anti-collapse under the action of a large earthquake. The following conclusions are obtained: the order of plastic hinges or destruction of components complies with the conceptual design concept and meets the concept of multiple seismic fortification; frame-shear wall structure has obvious yield point; the high-rise frame-shear wall structure meeting the requirements of the code is basically satisfied “Earthquake does not fall ” fortification target.