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建筑物中设置耗能阻尼器能有效地耗散地震能量,降低结构的地震作用,避免或减小主体结构的损伤。金属阻尼器和黏滞阻尼器对地震作用下的结构具有较好的减震效果,在国内外项目中得到了广泛应用。基于工程实例,对在结构中设置单一阻尼器和同时设置位移相关型和非线性速度相关型阻尼器的两种不同的消能减震方案进行反应谱和动力时程分析,通过对附加阻尼比、层间位移角、层剪力、阻尼器抗震性能等参数的对比,比较各方案的减震效果,并提出相关的设计要点,为消能减震设计提供有益的参考。
Setting energy-dissipating dampers in buildings can effectively dissipate the seismic energy, reduce the seismic effect of the structure and avoid or reduce the damage of the main structure. Metal dampers and viscous dampers have good damping effect on structures under earthquake action and are widely used in projects both at home and abroad. Based on the engineering examples, the response spectra and dynamic time-history analysis of two different energy-dissipative damping solutions with a single damper and a set of displacement-dependent and non-linear velocity-related dampers in the structure are performed. , The displacement angle between layers, the layer shear force and the seismic performance of the damper are compared. The damping effects of each scheme are compared and the relevant design points are put forward to provide useful references for energy dissipation and damping design.