采用粘滞阻尼器的某口腔门诊楼消能减震设计

Energy Dissipation Design of a Dental Clinic Building with Viscous Dampers

某口腔门诊楼运用了粘滞阻尼器进行该门诊楼消能减震设计,该门诊楼位于云南省的某高烈度地区,在进行数值模拟建立原结构模型并添加粘滞阻尼器建立减震结构模型以及对采用了消能减震器的结构整体进行了分析时运用了PKPM和大型商业有限元分析软件SAP2000。在其分析之中包含了多遇地震与罕遇地震作用下结构的弹性分析与塑性分析。根据预期的水平地震力和位移控制要求及耗能参数,估算结构的附加刚度和附加阻尼比,选择合适的耗能减振器类型并配置在相应位置。运行分析之后提取分析结果进行对比得到:在遭遇不同的地震作用下,该结构由于添加了粘滞阻尼器从而具备良好的抗震性能,在地震作用下发挥了良好的耗能能力,保障了门诊楼主体结构的安全,达到了预期的目标。

A dental clinic building in a high-intensity area in Yunnan uses viscous dampers to design energy dissipation and vibration reduction.The PKPM and large commercial finite element analysis software are used in the numerical simulation to establish the original structure model and to add the viscous damper to establish the shock absorption structure model and to analyze the whole structure of the energy dissipation shock absorber SAP2000.The analysis includes the elastic analysis and plastic analysis of structures under the action of multiple earthquakes and rare earthquakes.According to the expected horizontal seismic force and displacement control requirements and energy dissipation parameters,the additional stiffness and additional damping ratio of the structure are estimated,and the appropriate type of energy dissipation shock absorber is selected and configured in the corresponding position.After operation analysis,the results of extraction and analysis are compared,finding that,under the action of different earthquakes,the structure has good seismic performance because of the addition of viscous dampers,and has played a good energy dissipation capacity under the action of earthquake.It ensures the safety of the main structure of outpatient building and achieves the expected goal.