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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。
Taking the unitary structure of station house and canopy in Taizhou Railway Station as the engineering background, the wind-induced vibration response of different loading methods is analyzed by using the frequency-domain calculation method of wind-induced buffeting. At the same time, different ways of handling the load Spectral crossover term, and analyze the effect of different treatment methods on wind-induced vibration response. For the Siamese structure composed of the structure with large difference in dynamic characteristics, the zonal synchronous pressure measurement data can be adopted for the load used in the response calculation. The cross term of the load spectrum used in the calculation of wind vibration response can only take the real part, The coherence function should be fitted with the real part of the load spectrum.