摘要
研究框-剪结构采用位移型阻尼器的消能减震设计方法。基于性能曲线法,确定结构各层阻尼参数初始值,建立结构楼层附加阻尼力中心的概念,利用最优控制理论,确定附加阻尼力中心最优位置。首先,对结构各层阻尼参数初始值,进行一次消能参数的分配并分组。然后,基于智能算法,在结构竖向各楼层进行消能参数的二次分配和优化。最终,实现了不规则框-剪结构在满足结果抗震性能目标的前提下,消能参数最大限度的优化。该方法适用于位移型阻尼器在其它类型不规则结构体系结构中的消能减震设计和优化。
The purpose of this study is to investigate the design method for energy dissipation and seismic reduction of frame-shear wall structures with displacement based dampers.Based on the performance curve method,the initial value of damping parameters of each layer of the structure is determined,the concept of additional damping force center of the structure floor is established,and the optimal position of the additional damping force center is determined by using the optimal control theory.Firstly,the initial values of the damping parameters of each layer of the structure are assigned and grouped once.Then,according to the intelligent algorithm,the secondary distribution and optimization of energy dissipation parameters are carried out on each vertical floor of the structure.Finally,the energy dissipation parameters of the irregular frame shear structure are optimized to the maximum extent under the premise of meeting the seismic performance goals of the result.This method is suitable for the design and optimization of energy dissipation and vibration absorption of displacement damper in other types of irregular structure architecture.
作者
乌兰
WU Lan(Nanjing Architectural Design&Research Institute Limited Liability Company,Nanjing 210016)
出处
《福建建筑》
2024年第4期61-65,共5页
Fujian Architecture & Construction
关键词
位移型
框-剪结构
优化设计
Displacement-based
Frame-shear structure
Optimal design
