一体化通信基站风振响应及风振计算研究  

Calculation and Analysis on Wind-induced Vibration Response of Integrated Communication Base Station

作　　者：史国富 屠海明 Shi Guofu;Tu Haiming(Architectural Design&Research Institute of Tongji University (Group) Co.Ltd.,Shanghai 200092,China)

机构地区：[1]同济大学建筑设计研究院集团(有限)公司,上海200092

出　　处：《特种结构》2020年第2期108-112,共5页Special Structures

摘　　要：一体化通信基站由于高、柔特性,其控制设计荷载为风荷载,结构体系外形变化较大,采用规范风振系数方式近似考虑风振影响存在一定的偏差。本文通过采用Davenport风谱,考虑不同高度处脉动风空间相关性,采用谐波合成法对风荷载进行模拟。对一典型一体化通信基站进行时程分析,采用惯性力法(IWL)得到该结构体系各高度处的风振系数,并将风振响应分析值与基于荷载规范的两种近似法进行了比较分析,验证了顶部悬臂法的可靠性。Due to its high and flexible characteristics,the control design load of the integrated communication base station is wind load.Because of large shape change,there are some defects to consider the influence of wind-induced vibration by adopting the wind-induced vibration coefficient of load code.In this paper,Davenport wind spectrum was adopted to simulate nature wind by WAWS method considering spatial correlation of stochastic wind at different heights.Based on the time-history analysis of a typical integrated communication base station,the wind-induced vibration coefficients at corresponding heights of the structure were obtained by using the inertial wind load method(IWL).The wind-induced vibration response analysis values were compared with that calculated by the approximate method based on load code,and the results verifiedthe reliability of the top cantilever method.

关 键 词：一体化通信基站 风荷载模拟 时程分析 风振系数 

分 类 号：TU312.1[建筑科学—结构工程]