高烈度区某高层住宅建筑的隔震设计
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摘要
为解决弱轴抗侧刚度不足的问题和降低地震作用对我国抗震设防高烈度区的某高层住宅建筑的影响,对其进行了隔震设计。结果表明:隔震设计能满足该结构抗震性能设计目标及《建筑抗震设计规范》(GB 50011—2010)的规定,隔震设计降低了抗震设防烈度以进行上部结构后抗震设计,从而实现降低工程造价的经济性要求;隔震支座竖向承压能力、竖向受拉能力、弹性复位能力、水平变形能力等是确保隔震设计有效性的重要指标;隔震层偏心率是考量隔震支座布置合理性的一个重要指标,通过控制隔震层偏心率,可实现减小上部结构扭转效应的目的。
Considering the lack of lateral stiffness of weak axis and the need to reduce the effect that the earthquake action on a tall residential building in high intensity region in China,seismic isolation design is carried out of. The results show that the seismic isolation design of the structure can satisfy performance-based seismic design goals of the structure and meet the requirements of Code for seismic design of buildings( GB 50011—2010). Seismic isolation design reduces seismic intensity of the upper structure to design,which reduces the cost. Capacity of bearing,tensile,elastic reset and horizontal deformation of isolation bearings are important indexes to ensure the validity of isolation design. Isolation layer eccentricity is an important index to evaluate rationality of isolation bearings layouts,and torsion effects of upper structure can be reduced by controlling the eccentricity of isolation layer.
Considering the lack of lateral stiffness of weak axis and the need to reduce the effect that the earthquake action on a tall residential building in high intensity region in China,seismic isolation design is carried out of. The results show that the seismic isolation design of the structure can satisfy performance-based seismic design goals of the structure and meet the requirements of Code for seismic design of buildings( GB 50011—2010). Seismic isolation design reduces seismic intensity of the upper structure to design,which reduces the cost. Capacity of bearing,tensile,elastic reset and horizontal deformation of isolation bearings are important indexes to ensure the validity of isolation design. Isolation layer eccentricity is an important index to evaluate rationality of isolation bearings layouts,and torsion effects of upper structure can be reduced by controlling the eccentricity of isolation layer.
引文
[1]周福霖.工程结构减震控制[M].北京:地震出版社,1996.
[2]胡聿贤.地震工程学[M].北京:地震出版社,2006.
[3]王亚勇,王言诃.汶川大地震建筑震害启示[J].建筑结构,2008,38(7):1-6.
[4]张敏政.从汶川地震看抗震设防和抗震设计[J].土木工程学报,2009,42(5):21-24.
[5]周颖,吕西林.智利地震钢筋混凝土高层建筑震害对我国高层结构设计的启示[J].建筑结构学报,2011,32(5):17-23.
[6]周锡元,俞瑞芳.建筑结构抗震设计方法的新进展[J].建筑结构,2006,36(IS):25-33.
[7]刘文光,何文福,霍达,等.隔震结构设计加速度反应谱的取值研究[J].振动与冲击,2010,29(4):181-187.
[8]曹加良,施卫星,汪洋,等.我国抗震规范谱及谱阻尼折减系数研究[J].建筑结构学报,2011,32(9):34-43.
[9]CECS 126∶2001叠层橡胶支座隔震技术规程[S].北京:中国工程标准化协会,2001.
[10]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[2]胡聿贤.地震工程学[M].北京:地震出版社,2006.
[3]王亚勇,王言诃.汶川大地震建筑震害启示[J].建筑结构,2008,38(7):1-6.
[4]张敏政.从汶川地震看抗震设防和抗震设计[J].土木工程学报,2009,42(5):21-24.
[5]周颖,吕西林.智利地震钢筋混凝土高层建筑震害对我国高层结构设计的启示[J].建筑结构学报,2011,32(5):17-23.
[6]周锡元,俞瑞芳.建筑结构抗震设计方法的新进展[J].建筑结构,2006,36(IS):25-33.
[7]刘文光,何文福,霍达,等.隔震结构设计加速度反应谱的取值研究[J].振动与冲击,2010,29(4):181-187.
[8]曹加良,施卫星,汪洋,等.我国抗震规范谱及谱阻尼折减系数研究[J].建筑结构学报,2011,32(9):34-43.
[9]CECS 126∶2001叠层橡胶支座隔震技术规程[S].北京:中国工程标准化协会,2001.
[10]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
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