夹层橡胶隔震技术在砖混结构加层中的应用研究
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摘要
与直接加层结构相比,夹层橡胶垫隔震技术可使加层后的房屋调高抗震性能,降低结构的地震反应。在砌体结构加层连接部位安置橡胶垫耗能装置,利用时程分析方法对常规加层结构和有隔震装置的加层结构进行数值模拟计算,对比两种结构体系的加速度和位移,分析安放夹层橡胶垫耗能装置对降低砖混结构加层地震反应的可行性。与传统直接加层相比,夹层橡胶垫隔震技术能大幅度降低地震的不利影响。
Seismic isolation design of additional stories can increase the stories to the low building without dismantling the building. Comparing with adding stories directly,seismic isolation can decrease the seismic response,which make the new building have stronger resistance. The study of seismic resistant properties of building after adding stories will provide scientific evidence for adding stories to buildings. Routine additional stories structure and seismic isolation additional stories structure is calculated by time history method,which educe acceleration and displacement for the two structures and summarize the feasibility of that bestowing sandwich rubber cushion can decrease the seismic response of low brick masonry building. The responses of additional stories under different conditions are analyzed,from which the influence of fields to additional stories is obtained.
Seismic isolation design of additional stories can increase the stories to the low building without dismantling the building. Comparing with adding stories directly,seismic isolation can decrease the seismic response,which make the new building have stronger resistance. The study of seismic resistant properties of building after adding stories will provide scientific evidence for adding stories to buildings. Routine additional stories structure and seismic isolation additional stories structure is calculated by time history method,which educe acceleration and displacement for the two structures and summarize the feasibility of that bestowing sandwich rubber cushion can decrease the seismic response of low brick masonry building. The responses of additional stories under different conditions are analyzed,from which the influence of fields to additional stories is obtained.
引文
1李宏男,刘光磊,林立岩.采用摩擦垫层及阻尼器对外套加层结构体系的减振研究.地震工程与工程振动,2000;20(12):126—132
2段文松,孙润香.建筑结构隔震现状的探讨.吉林建筑工程学院学报,2002;19(4).Yao J TP.Concept of structural control.ASCF Struct Div,1972;98:1567—1574
3Praveen K M.Dynamic of seismic impacts in base-isolated buildings.Earthquake Engineering and Structural Dynamics,1997;26(8):797—813
4孙建刚,王振,袁朝庆.储罐隔震设计简化分析方法.地震工程与工程振动,2001;21(6):157—160
2段文松,孙润香.建筑结构隔震现状的探讨.吉林建筑工程学院学报,2002;19(4).Yao J TP.Concept of structural control.ASCF Struct Div,1972;98:1567—1574
3Praveen K M.Dynamic of seismic impacts in base-isolated buildings.Earthquake Engineering and Structural Dynamics,1997;26(8):797—813
4孙建刚,王振,袁朝庆.储罐隔震设计简化分析方法.地震工程与工程振动,2001;21(6):157—160
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