【摘要】 北京银泰中心钢结构主楼高249.5m,为改善其上部豪华公寓的舒适度,采用粘滞阻尼器对风荷载作用下的结构水平振动进行了控制设计。设计风荷载考虑了顺风向和横风向脉动风的作用,并以时程分析和能量分析相结合的方法进行了计算分析。另外,对阻尼器在改善结构抗震性能方面的作用也做了补充计算。结果表明,粘滞阻尼器的合理应用不仅能有效地降低主体结构的风振加速度,满足标准中对舒适度的要求,在缓解地震的不利作用方面也具有一定的效果。更多还原

【Abstract】 Beijing Yintai Center steel tower is 249.5m high.For improving the comfort of the luxury rooming houses on top of the building,viscous dampers(VD) are used to control wind-induced structural vibration.The vibration analysis spreads both in time-domain and energy-domain with computing structural response along and vertical wind.The earthquake-induced structural response is also computed.The results show that VD had obvious influence for wind-induced structural response and certain effect for earthquake-induced structural vibration.更多还原