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基于屈服机制的减震设计研究

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消能减震设计可以调整某些结构的屈服机制,提升结构的抗震性能,减震设计方案是进行结构减震设计的关键,研究结构的屈服机制并由此确定结构的减震设计方案十分必要.以河北省某医院住院楼为例,运用非线性静力推覆方法,分析了该结构的构件屈服顺序,判定出了屈服机制和薄弱环节,并由此确定了减震设计方案.对减震结构和非减震结构的抗震性能进行了对比分析,结果表明:基于屈服机制的减震设计方法能快速确定结构消能减震装置的布设位置,使结构屈服机制符合预期;结合基于位移的设计方法,以层间位移角作为控制目标可以确定阻尼器的性能参数.
Study on seismic reduction design based on yield mechanism
Energy-dissipated design can adjust the yield mechanism and improve the seismic performance of structures.The seismic reduction design scheme is the key to seismic reduction design of structures.It's necessary to study the yield mechanism and thus determine the seismic reduction design scheme of structures.The inpatient building structure of a hospital in Hebei Province was taken as an example.By using the nonlinear static pushover method,the yield sequence of members in the structures was analyzed,and the yield mechanism and weak links were determined.The seismic reduction design scheme was determined.The seismic performance of the damping structure and the non-damping structure were compared and analyzed.The results show that the seismic reduction design method based on the yield mechanism can quickly determine the installation position of the energy dissipation devices,so that the yield mechanism of the structure is consistent with expectations.Combined with displacement-based design method,the performance parameters of the damper can be determined by taking storey drift angle as a control target.

seismic performanceyield mechanismpushover analysisseismic reduction design schemeenergy dissipation device

范夕森、柏一航、孙明、陈亮

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山东建筑大学土木工程学院,山东 济南 250101

山东建筑大学建筑结构加固改造与地下空间工程教育部重点实验室,山东 济南 250101

山东省建筑设计研究院有限公司,山东 济南 250001

抗震性能 屈服机制 推覆分析 减震设计方案 消能减震装置

国家重点研发计划项目

2022YFF0608903

2024

四川建筑科学研究
四川省建筑科学研究院

四川建筑科学研究

影响因子:0.422
ISSN:1008-1933
年,卷(期):2024.50(3)
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