（1 东南大学土木工程学院， 南京 210018； 2 东南大学建筑设计研究院有限公司， 南京 210018)

［摘要］选取自振频率与峰值加速度双控标准，对新型楼盖进行人行荷载下的舒适度试验，分析了各行连接件、步频、人群规模、行走路线、人行荷载布置方式等因素对楼盖竖向振动的影响，结果表明：跨中连接件对楼盖振动的影响大于其他位置的连接件；步频及人群规模越大，振动响应越大；最不利的行走路线是沿横板向行走并通过低阶振型中心；最不利的布载方式是常规板双侧布置人群荷载。5种因素对楼盖的影响程度由大到小依次为：各行连接件、步频、人行荷载布置方式、行走路线、人群规模。选取最不利情况对楼盖进行了舒适度分析，结果表明该楼盖满足舒适度要求。

［关键词］预制; 装配式; 新型楼盖; 人行荷载; 峰值加速度; 舒适度

中图分类号：TU375.2       文献标识码：A       文章编号：1002-848X(2014)13-0019-05

Experimental study on comfort under pedestrian loads of the  new type of precast assembly floor

Sun Chongfang1, Liang Shuting1, Zhu Xiaojun2

（1 School of Civil Engineering, Southeast University, Nanjing 210018, China; 2 Architectural Design and Research Institute Ltd., Southeast University, Nanjing 210018, China）

Abstract: Natural frequency and peak acceleration are selected as comfort evaluation criteria. Comfort test on the new type of floor diaphragm under the pedestrian load was conducted. Connections of each row, stride frequency, population scale, walking route and arrangement of pedestrian load which influenced the floor vertical vibration were analyzed. The result indicates that: the influence of connections in middle span is larger than those in other location; the larger stride frequency and population scale, the greater the vibration response; the most unfavorable walking route is walking along the transverse seam direction and through the lower-order modal center; the most unfavorable layout of load is bilateral arrangement of pedestrian load on conventional plate. The influencing sequence from big to small in five factors is various row connectors, frequency of walking, crowd loads arrangement, walking route, population size. Comfort analysis of new floor was carried out by selecting the most unfavorable situation. The result indicates that the floor meets the comfort requirement.

Keywords: precast; assembly; new type of floor; pedestrian load; peak acceleration; comfort

*国家自然科学基金项目（51208181），国家“十二五”科技支撑计划项目（2011BAJ10B08）。

作者简介：孙崇芳，博士，Email:654499641@qq.com。

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