摘要
以台州火车站站房与雨棚的连体结构为工程背景,采用风致抖振响应频域计算方法,分析不同荷载加载方式的风振响应;同时根据常用相干函数表现形式采用不同的方式处理荷载谱交叉项,并分析不同处理方式对风振响应的影响。对于由动力特性差别较大的结构组成的连体结构,响应计算所用荷载可以采用分区同步测压数据;用于风振响应计算的荷载谱交叉项可以只取其实部,反映测点风压间的相干函数应采用荷载谱实部计算拟合。
Based on connected-structures of Taizhou railway station-passenger station and canopy,Wind-induced buffeting response is calculated by difference loading methods in frequency domain.It deals with cross terms of load spectrum according to their correlated functions and researches on the influence of different methods according to structure responses.For the response calculating of connected-structures composed of parts with different dynamic characteristics,load can be obtained by data of partitioned simultaneous multi-pressure measurement; real part of cross terms of load spectra can be used in calculating,and fitted to coherence function of pressure points reasonably.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第1期135-138,157,共5页
Journal of Wuhan University of Technology
基金
国家自然基金重大研究计划资助项目(90715023)
关键词
风振响应
相干函数
连体结构
频域法
荷载谱交叉项
wind-induced responses
coherence function
connected-structures
frequency-domain method
cross terms of load spectra
