摘要
为了研究高烈度区高层剪力墙结构住宅采用隔震设计的技术经济性,对某剪力墙结构采用隔震设计前后进行了较为全面的分析比较。多遇地震作用下,分别对隔震结构与非隔震结构的底部剪力和层间位移角进行验算。罕遇地震作用下,对隔震结构与非隔震结构的耗能性能、层间位移角、剪力墙变形角以及连梁变形角等进行对比分析,考察结构的损伤情况。在此基础上,探讨了隔震结构与非隔震结构材料用量、工程造价与设防烈度的关系。分析结果表明,采用隔震设计后,结构的地震总剪力与倾覆力矩均可降低2/3左右,多遇地震作用下的最大层间位移角可减小40%以上,罕遇地震作用下的最大层间位移角可减小50%以上;设置黏滞阻尼器对于减小隔震层的最大位移作用显著;剪力墙基本处于弹性状态,连梁的损伤程度大大降低。8度（0.3g）设防时,隔震结构钢筋和混凝土的用量均明显少于非隔震结构,工程造价低于非隔震结构。
In order to study the technical economy of high-rise shear wall structural dwelling houses adopting seismically isolation design in high-intensity seismic areas,comprehensive comparisons were made for a shear wall structure before and after using seismically isolation design. The bottom shear forces and inter-story drift angles of the seismically isolated and the non-isolated structures under frequent earthquakes were checked respectively. For seismically isolated and non-isolated structures,the energy dissipation performance,inter-story drift angles,deformation angles of shear walls and deformation angles of coupling beams under rare earthquakes were compared and analyzed to study structural damage conditions. On this basis,the relationship between the amount of materials used,engineering cost and fortification intensity in both seismically isolation and non-isolation structures was discussed. The analysis results show that the total seismic shear force and overturning moment of the structure can be reduced about two-thirds by the seismically isolation design; the maximum inter-story drift angle can be reduced more than 40% and 50% under frequent earthquake and rare earthquake respectively;the maximum displacement of the seismically isolation floor can be reduced significantly by setting viscous dampers; shear walls are basically in elastic state,and the damage degree of coupling beams is reduced greatly. For region with 8 degree fortification intensity（ 0. 3 g）,the seismically isolated structure has significantly less amount of rebar and concrete used and lower engineering cost than those of the non-isolated structure.
作者
范重
裴雨晨
赵红
王义华
杨苏
Fan Zhong;Pei Yuchen;Zhao Hong;Wang Yihua;Yang Su(China Architecture Design ＆ Research Group, Beijing 100044, China;School of Civil Engineering and Transportation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China)
出处
《建筑结构》
CSCD
北大核心
2018年第9期1-8,18,共9页
Building Structure
基金
中国建设科技集团科技创新基金项目(Z2016J05)
关键词
剪力墙
隔震
罕遇地震
结构损伤
工程造价
shear wall
seismic isolation
rare earthquake
structural damage
engineering cost
