北京某高层钢框架建筑消能减震设计

发布时间：2018-05-10 17:48

本文选题：消能减震 + 墙板式阻尼器　；参考：《建筑结构》2016年S1期

【摘要】：北京某高层钢结构住宅采用框架结构,结构纵横向布置墙板式阻尼器。采用等效支撑模型(PKPM)和弹簧模型(ETABS)对结构在多遇地震作用下的响应进行分析,采用弹簧模型(ETABS)对结构在罕遇地震作用下的结构响应进行分析。分析结果表明:1)等效支撑模型和弹簧模型可以较好地模拟墙板式阻尼器在结构中的作用;2)采用墙板式阻尼器后,结构在多遇地震下和罕遇地震作用下的抗震性能得到提高;3)多遇地震作用下,墙板式阻尼器为结构提供抗侧刚度,使结构的层间位移角满足规范要求,满足"小震不坏"的设计目标;4)罕遇地震作用下,结构的层间位移角满足规范要求,部分框架梁产生塑性铰,而框架柱始终保持弹性,能够达到"大震不倒"的设计目标;4)墙板式阻尼器在罕遇地震作用下屈服耗能,可为结构提供附加阻尼比。
[Abstract]:A high-rise steel structure residence in Beijing adopts frame structure and vertical and horizontal wall plate dampers. The equivalent support model (PKPM) and spring model (ETABS) are used to analyze the response of the structure under frequent earthquake, and the spring model (ETABS) is used to analyze the structural response of the structure under rare earthquake. The results show that the equivalent support model and spring model can simulate the effect of the wall plate damper in the structure. The seismic performance of structures under frequent and rare earthquakes has been improved. (3) under frequent earthquakes, the wall plate dampers provide lateral stiffness for the structures and make the interstory displacement angles of the structures meet the requirements of the specifications. Under the action of rare earthquakes, the interstory displacement angle of the structure meets the requirements of the code, and some frame beams produce plastic hinges, while the frame columns remain elastic. The wall plate damper can yield and consume energy under rare earthquake, which can provide the additional damping ratio for the structure.
【作者单位】：上海力岱结构工程技术有限公司;
【分类号】：TU973.31

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