基于优化算法的摩擦阻尼器参数设计新方法  

A New Method for Parameter Optimization of Friction Dampers Based on Optimization Algorithm

作　　者：常海林 李洁 潘常春 张菁 CHANG Hailin;LI Jie;PAN Changchun;ZHANG Jing(Central Research Institute of Building and Construction Co.,Ltd.,MCC Group,Beijing 100088,China;CSIC International Engineering Co.,Ltd.,Beijing 100121,China)

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]中国船舶重工集团国际工程有限公司,北京100121

出　　处：《工业建筑》2023年第8期154-160,共7页Industrial Construction

基　　金：中冶集团重大研发项目资助(YZJ2021181)。

摘　　要：以框架结构地震作用下的结构响应为约束条件,采用计算机辅助集成技术对布置摩擦阻尼器的框架结构抗震性能进行优化设计研究。使用ABAQUS软件分别对有无摩擦阻尼器的框架结构进行有限元分析,得到结构的各层位移及加速度响应。通过ISIGHT软件集成ABAQUS对摩擦阻尼器力学参数进行优化设计,以在布置同样数量的阻尼器情况下,得到最优的减震设计方案。研究结果表明:基于优化算法的摩擦阻尼器参数设计方法能有效地优化结构抗震设计,应用此流程可大大提高阻尼器参数自动优化设计在工程上应用的可操作性;分别采用单变量优化和多变量优化方法,优化计算结果显示结构顶层位移及加速度响应相比优化前得到显著降低。Taking the structural response of frame structures under earthquake as a constraint,the seismic performance of frame structures with friction dampers was optimized by computer-aided integration technology.Using ABAQUS software,a finite element analysis of frame structures with or without friction dampers was carried out to obtain the displacement and acceleration responses of each layer of the structure.ISIGHT software was integrated with ABAQUS to optimize the mechanical parameters of friction dampers,to obtain the optimal damping design scheme under the condition of deploying the same number of dampers.The results showed that the parameter design method of friction dampers based on an optimization algorithm could effectively optimize the seismic design of the structure,and the application of the process could greatly improve the operability of the automatic optimization design of damper parameters in engineering applications.Univariate optimization and multivariate optimization methods were used respectively,and the optimization results showed that the displacement and acceleration responses of the top layer of the structure were significantly reduced compared with those before optimization.

关 键 词：框架结构 地震响应 摩擦阻尼器 参数优化 

分 类 号：TU311.3[建筑科学—结构工程] TU375.4