【摘要】 广州市档案馆新馆档案库房采用钢筋混凝土框架(局部无梁楼盖)+耗能支撑结构体系,结构设计使用年限为100年,建筑抗震设防类别为乙类,抗震等级为二级。引入基于性能的抗震设计方法,利用快速非线性时程分析方法对结构进行计算。结果表明,通过增设粘滞耗能支撑可以明显地降低结构的加速度、位移和内力反应,大大提高结构的抗震安全储备。在增加很少土建投资的情况下,可实现大震不屈服的性能目标。更多还原

【Abstract】 Guangzhou Archive’s structural system is a reinforced concrete frame with energy dissipated braces(partial girderless floor system).Design working life is 100 years,earthquake fortification belongs to B,earthquake-resistant grade is Grade Ⅱ.Performance-based seismic design concept is introduced by using fast nonlinear time history analysis method.Calculation results show that structure responses of the accelerations,displacements and internal forces are comparatively reduced by adding the viscous damper braces.The structure can obtain the IO target under rare earthquake by slightly increasing the investment.更多还原