配置SMA的预应力自复位混合钢框架抗震性能研究OA北大核心CSTPCD
Seismic performance of prestressed self-centring hybrid steel frames equipped with SMA
为提升钢框架结构的抗震性能,将配置形状记忆合金(SMA)的预应力自复位混合节点引入钢框架结构.基于已有试验数据,采用有限元分析软件OpenSees建立能准确模拟节点滞回性能的简化模型.在此基础上,进一步建立考虑预应力索和SMA螺栓断裂失效的钢框架模型.通过静力推覆分析、非线性时程分析和易损性分析对配置SMA的预应力自复位混合钢框架的抗震性能进行评估.分析结果表明:混合钢框架结构呈现出三折线旗帜形滞回特征,并具有优良的自复位性能;相较于仅配置预应力…查看全部>>
To enhance the seismic performance of steel frame structures,prestressed self-centring hybrid connections(SCHC)equipped with SMA were introduced into self-centring hybrid steel frames(SCHF).A simplified numerical model to simulate the hysteretic behaviour of the SCHC was developed based on the physical test data.Validated modelling techniques were employed to develop codified frame structures,considering the fracture behaviour of prestressed cables and…查看全部>>
张还阳;周绪红;柯珂;贺修樟
重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045
土木建筑
自复位混合钢框架形状记忆合金材料-结构一体化易损性分析非线性谱分析抗震性能
self-centring hybrid steel frameshape memory alloymaterial-structure integrationfragility analysesnonlinear spectral analysesseismic performance
《建筑结构学报》 2024 (8)
34-43,10
国家自然科学基金项目(52178111,51890902).
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