消能减震技术在某公共建筑改造加固中的应用

本文以某公共建筑改造工程为背景，针对改造过程中存在的大量梁、柱承载力不足，且主控参数超限等问题，提出了在框架结构中适当位置增设黏滞阻尼器的加固方案，使改造后的结构形成消能减震体系，减小地震作用。采用有限元软件分析了加固方案下结构在多遇和罕遇地震作用下的时程反应，研究了消能减震效果。结果表明，经加固改造后，各主控参数均可满足现行规范要求，大幅度提高了罕遇地震作用下结构抗震性能；通过合理设置黏滞阻尼器，减小了地震作用，大幅度缩小了梁、柱加固范围。

Application of Energy Dissipation Technology in Reconstruction and Reinforcement of A Public Building

In the process of implementing a public building renovation project, many problems are found: a large number of beam and column with insufficient bearing capacity the main control parameters exceed the limit and other problems. Therefore, a reinforcement scheme is proposed to add a viscosity damper in the appropriate position in the modified frame structure, so that the modified structure can form an energy dissipation and shock absorption system and reduce the seismic effect. In this paper, the finite element software is used to analyze the time-course response of the structure under the reinforcement scheme under the action of frequent and rare earthquakes, and the effect of energy dissipation and shock absorption is studied. The research results show that after reinforcement and transformation, each main control parameter can meet the requirements of the current specification, and greatly improve the seismic performance of the structure under the action of rare earthquakes, and through the reasonable setting of viscous dampers, the seismic effect can be reduced effectively, and the reinforcement range of beams and columns can be reduced greatly.