Nonstructural Partitions and Floor Vibration Serviceability
Nonstructural Partitions and Floor Vibration Serviceability
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DOI：
10.1061/(asce)ae.1943-5568.0000171
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发表时间：
2016-03-01
影响因子：
2
通讯作者：
Pavic, A.
中科院分区：
文献类型：
--
作者：
Devin, A.;Fanning, P. J.;Pavic, A.
非结构垂直隔断和覆层对地板系统的振动适用性有显着影响。创建一栋由钢-混凝土复合楼板系统组成的典型现代办公楼，以研究将非结构隔断集成到结构楼板系统中以减少步行激励引起的楼板振动的潜在有益效果。展示了该建筑的两种模型：一种代表具有开放式布局的完整建筑，另一种则以有益的模式添加了隔断，以增强地板的振动性能。添加非结构隔断成功地降低了步行激励引起的地板加速度，并帮助地板满足办公地板的振动适用性标准。还研究了垂直全高非结构隔断和覆层在楼层之间传递振动的潜力。在有限元 (FE) 模型上进行振动传递模拟，以量化通过结构框架和非结构垂直隔板和覆层的地板之间的振动传递。然后将结果与之前在爱尔兰都柏林真实的查尔斯学院大楼地板上记录的实验结果进行比较，该大楼具有相同类型的隔断但具有不同的结构框架。结论是，有限元模型和具有结构元件和全高隔断的现实建筑都有可能在两个相邻楼层之间传递显着水平的振动。本文提出的结果将引起地板系统振动适用性领域的设计工程师和研究人员的兴趣，因为它强调了非结构元件将地板振动响应降低到可接受水平的潜力，以及它们在地板之间传递振动的能力。 (C) 2015 年美国土木工程师学会。
Nonstructural vertical partitions and cladding can have a significant effect on the vibration serviceability of floor systems. A typical modern office building, consisting of steel-concrete composite floor systems, was created to investigate the potential beneficial effects of integrating nonstructural partitions into structural floor systems to reduce floor vibrations due to walking excitation. Two models of this building are presented: one to represent the completed building with an open-plan layout and another with partitions added in a beneficial pattern to enhance the floor's vibration performance. The addition of nonstructural partitions successfully reduced floor accelerations due to walking excitation and helped the floor to satisfy the vibration serviceability criterion for office floors. The potential of vertical full-height nonstructural partitions and cladding to transmit vibrations between floors was also investigated. A vibration transmission simulation was conducted on the finite-element (FE) model to quantify vibration transmission between floors through the structural frame and nonstructural vertical partitions and cladding. The results were then compared with experimental results previously recorded on the floors of a real-life Charles Institute Building in Dublin, Ireland, featuring the same type of partitions but with a different structural frame. It was concluded that both the FE model and the real-life building featuring structural elements and full-height partitions have the potential to transmit a significant level of vibrations between two adjacent floors. The results presented in this paper will be of interest to design engineers and researchers in the area of vibration serviceability of floor systems because it highlights the potential of nonstructural elements to reduce the floor vibration response to acceptable levels, as well as their ability to transmit vibrations between floors. (C) 2015 American Society of Civil Engineers.