点击下载文件：[论文]高层建筑结构风振时程分析软件的技术研究



高层建筑结构风振时程分析软件的技术研究
陈学伟1，韩小雷1，2，郑宜1，毛贵牛1
（1. 华南理工大学高层建筑结构研究所 广州 510640；2.华南理工大学亚热带建筑科学国家重点实验室 广州 510640）
摘  要：高层建筑风振舒适度已受到普遍关注，目前常采用的是规范的经验公式和风洞模型试验实测法。但随着结构体系的复杂化及采用附加阻尼器减振技术的日益广泛化，进行结构的风振时程分析是更为简单直接和准确的分析方法。本文采用自回归滤波法技术，考虑三维空间相关性，对具有随机性的脉动风荷载进行有效的模拟；通过编制软件生成风压时程数据并自动输出至结构有限元软件进行风振时程分析，为高层建筑的风振控制分析提供了可行的方法；最后，将该风动力荷载数值模拟技术与动力时程分析技术相结合进行算例分析验证，经过对比研究表明该风振时程分析方法可应用于工程分析与设计。
关键词：风振控制；风荷载时程；时程分析；自回归滤波法
中图分类号：TU97   文献标识码：A    文章编号：
The Research of Time-History Response Analysis of Tall Building Structure Under Wind-induced Vibration and Computer Program for Wind Time-History Load Simulation
Chen Xuewei1, Han Xiaolei1,2, Jack CHEANG1, Mao Guiniu1
(1.Tall Building Structure Research Institute, College of Architecture and Civil Engineering, South China University of Technology, Guangzhou 510640, China;
  2.State Key Laboratory of Subtropical Architecture Science, South China University of Technology, Guangzhou 510640, China)
Abstract：Wind-induced comfort problems of tall building have raised more and more attention, empirical formulas from design codes and wind tunnel experiment method are widely use nowadays. However, as the complicate structure systems and especially structures with viscous dampers are widely applied, wind load time-history analysis method is more precise. In this paper, auto-regressive method is used to simulate the random wind dynamic loads which considers 3D spatial correlation. The computer program is developed to produce wind load time-history and export to FEM program to carry out the time-history analysis under wind-induced vibration. The program provides feasible method for analysis of wind-induced vibration of tall building structure .The proposed method was applied in numerical simulation of several typical examples. The results verify the effectiveness of this simulation method in practical structural analysis.
Keywords：wind-induced vibration control; wind load time-history; time-history analysis; auto-regressive.