文献类型：期刊文献

中文题名：基于BIM技术的超高层钢结构振动控制仿真

英文题名：Study on Vibration Control of Super High Rise Steel Structure in Zhengzhou Based on Multi Dimension BIM

作者：张静[1];周美玉[1]

机构：[1]华东理工大学艺术设计与传媒学院

年份：2019

卷号：36

期号：11

起止页码：211

中文期刊名：计算机仿真

外文期刊名：Computer Simulation

收录：CSTPCD;;北大核心:【北大核心2017】；

语种：中文

中文关键词：超高层钢结构;地震响应分析;振动控制

外文关键词：Super high-rise steel structure;Seismic response analysis;Vibration control

摘要：社会经济的进步与工程技术的发展,使人们对建筑工程结构的抗振抗灾控制方法的研究越来越重视。以超高层钢结构为研究对象,提出一种基于BIM技术的结构振动控制方法。首先,在BIM建筑信息管理体系中,对地震作用下的钢结构体系进行分析,利用线性多自由度地震响应分析法,从时域范围内对结构体系的相对地面加速度、位移向量进行求解计算后获取该体系的等效刚度矩阵,从频域范围内考虑以上因素的影响并给出结构体系的能量指标;再据此利用HHT变换理论可获得非线性地震波激励特性,运用变刚度控制系统使被控制结构在时间间隔采样区间范围内,依据控制规律使刚度值进行实时变换,令被控制结构在采样范围内离开共振状态,从而达到结构振动控制的目的。实验证明,利用文中振动控制方法可达到超高层建筑物防震减灾的目标。
This paper focuses on a method to control the structural vibration of super high-rise steel structure. In the BIM building information management system, the steel structure system under earthquake action was analyzed. Then, the linear multi-degree-of-freedom seismic response analysis method was used to calculate the relative acceleration to ground and the displacement vector of structural system from the time domain, so that the equivalent stiffness matrix of this system was obtained. After that, the influence of above factors was considered from the frequency domain and the energy indexes of structural system were given. Furthermore, HHT transform theory was used to obtain the nonlinear seismic wave excitation characteristics. Meanwhile, the variable stiffness control system was used to keep the controlled structure within the time interval sampling range. According to the control law, the stiffness value could be transformed in real time, so that the controlled structure went away from the resonance state within the sampling range, and thus achieving the structural vibration control. Simulation results prove that the proposed vibration control method can achieve the goal of earthquake prevention and disaster reduction of super high-rise buildings.