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某些大型公共建筑进行抗震加固时由于建筑使用功能的要求难以采用传统加固方式,采用消能减震加固时,可能仅在部分楼层增设阻尼器。主要针对某框架结构的大型公共建筑仅在薄弱层增设黏滞阻尼器进行模型振动台试验,并对模型在地震作用下的地震响应及动力特性进行对比研究。试验结果表明,在薄弱层增设黏滞阻尼器可有效地控制、降低结构的地震反应。
Some of the large public buildings in the earthquake-resistant reinforcement due to the requirements of the use of the building function is difficult to use the traditional reinforcement method, the use of energy-saving damping reinforcement may be additional only in some of the damper. A large-scale public building mainly for a frame structure is provided with a viscous damper only in the weak layer to test the model shaking table, and the seismic response and dynamic characteristics of the model are compared under earthquake action. The experimental results show that adding a viscous damper in the weak layer can effectively control and reduce the seismic response of the structure.