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首页> 外文期刊>International journal of steel structures >Dynamic Analysis of a Steel Floor System with Dry Slabs Subjected to Vibrations Due to Human Walking
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Dynamic Analysis of a Steel Floor System with Dry Slabs Subjected to Vibrations Due to Human Walking

机译：用人散步引起的振动钢板系统的动态分析

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摘要

One of the contemporary architecture trends is the design of structural elements that cover longer clearances to provide flexibility in the architecture of buildings. The technological and constructive evolutions in civil engineering assure the feasibility of such trends due to the use of structural elements with increased slenderness and reduced weight, such as steel structures that utilize dry slabs. However, structures of this type present greater susceptibility to the vibrations related to human activities. Hence, this study aims to evaluate, from the human comfort point of view, the dynamic behavior of an existing steel floor system with composite structural panels, subjected to vibrations due to human walking. To obtain the dynamic responses, the present study employs: (1) simplified procedures of the AISC and SCI design guidelines and (2) modal and transient analyses performed to a numerical model developed using the ANSYS software. The dynamic responses were compared with human comfort criteria prescribed by design guides, ISO 10137:2007 and the Brazilian standards. The influence of the value taken for structural damping and effect of more than one walking individual simultaneously on the structure may be evaluated through numerical results. It was concluded that the simplified procedures underestimate the dynamic responses of the floor system under study.
机译：其中一个现代建筑趋势是结构元素的设计，覆盖了更长的间隙，以在建筑物的建筑中提供灵活性。土木工程技术和建设性的演变确保了由于使用结构元素而增加的细长性和减轻重量，例如利用干韧带的钢结构，所以这种趋势的可行性。然而，这种类型的结构对与人类活动有关的振动具有更大的易感性。因此，本研究旨在从人类的舒适性观点来评估现有钢地板系统的动态行为，其具有复合结构板，由于人行道而受到振动。为了获得动态响应，本研究采用：（1）AISC和SCI设计指南的简化程序和（2）对使用ANSYS软件开发的数值模型进行的模态和瞬态分析。将动态响应与设计指南规定的人类舒适标准进行比较，ISO 10137：2007和巴西标准。可以通过数值结果评估结构阻尼和结构阻尼的价值的影响和多于一个行走的个体的影响。结论是，简化的程序低估了在研究下的地板系统的动态响应。

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