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机构地区:[1]同济大学土木工程学院建筑工程系,上海200092
出 处:《结构工程师》2009年第6期144-149,共6页Structural Engineers
基 金:光华同济土木基金资助
摘 要:大跨度预应力混凝土及钢-混凝土组合楼盖在体育建筑、大跨空间结构及高层建筑中的使用日趋广泛。由于大跨楼盖阻尼小、基频低,在使用者日常活动作用下会产生竖向振动,超过一定限度时会影响建筑的舒适度。因此,大跨度楼盖竖向振动舒适度设计与分析方法日益受到重视。本文综述了大跨度楼盖竖向振动舒适度问题、国内外设计规范以及控制标准,讨论了存在的问题及今后的研究方向。Long-span floors, such as post-tensioned floors and steel-concrete composite floors, are widely used in stadium, long-span space structures and high-rise buildings to meet the requirements for open space. Due to its potential low damping and low fundamental vibration frequency, the long-span floor system is subject to floor vibration induced by human activity. It may cause vibration serviceability problem when the vibration amplitude is beyond certain limitation. As a result, the vibration serviceability becomes the dominant factor for design of long span floor. This paper reviews some research and design criteria of vibration serviceability for long-span floors and discusses some existing problems combined with some research interests in future.
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