荷载作用下超高层建筑结构风荷载响应仿真  

Simulation of Wind Load Response of Super Tall Building Structures under Load Action

作　　者：白硕[1] 赵利军 赵娜 孟秋燕[1] BAI Shuo;ZHAO Li-jun;ZHAO Na;MENG Qiu-yan(Hebei Polytechnic Institute,Civil Engineering College,Shijiazhuang Hebei 050091,China;Hebei University of Technology,School of Civil Engineering,Tianjin 300401,China)

机构地区：[1]河北工程技术学院土木工程学院,河北石家庄050091 [2]河北工业大学土木工程学院,天津300401

出　　处：《计算机仿真》2024年第9期243-246,391,共5页Computer Simulation

基　　金：河北省高等学校科学技术研究项目(ZC2023075)。

摘　　要：与一般建筑不同,随着高度的增加,超高层建筑结构本身的基本自振周期和柔度增加,阻尼比降低,在荷载作用下会产生一定的位移变化。为了提高超高层建筑结构的稳定性和安全性,提出荷载作用下超高层建筑结构风荷载响应分析方法。基于随机振动理论,建立超高层建筑异形结构在风荷载作用下的运动方程,分析结构位移变化情况;通过静力风效应和动力风效应对建筑异形结构的风效应展开分析;根据分析结果,采用荷载反向识别算法结合离散卡尔曼滤波理论完成建筑结构风荷载响应分析。仿真结果表明,所提方法可准确获得超高层建筑异形结构的湍流度、风速时程、风中心轨迹相关信息,说明该方法的风荷载响应仿真分析结果精度较高。Different from ordinary buildings,with the increase of height,the basic natural vibration period and flexibility of the structure of super high-rise buildings increase,while the damping ratio decreases.In order to improve the stability and safety of the structure of super high-rise buildings,this paper proposed a method of analyzing wind load response.Based on random vibration theory,a motion equation of irregular structure under wind load in super high-rise buildings was established,and then structural displacement change was analyzed.Moreover,the wind effect of the building's irregular structure was analyzed through static wind effects and dynamic wind effects.According to the analysis results,the wind load response analysis of the building structure was completed using the load reverse recognition algorithm and discrete Kalman filter theory.Simulation results show that the proposed method can accurately obtain the turbulence degree,wind speed time series,and wind center trajectory of the irregular structure of super high-rise buildings,indicating that the accuracy of the simulation analysis result of wind load response is high.

关 键 词：超高层建筑 随机振动理论 风效应 离散卡尔曼滤波理论 风荷载响应 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]