Study of the Effects of Non-Structural Building Elements and Human-Structure Interaction on the Dynamic Behavior of Floors Subjected to Human Movements

非结构建筑构件和人-结构相互作用对受人类运动影响的地板动态行为的研究Mehdi Setareh和Thomas M.MurrayPROJECT SUMARY近年来，随着更高强度材料的发展，加上更高效的施工技术、更准确的计算机辅助结构分析和设计、新的设计方法，以及建筑师越来越多地使用大跨度结构，导致许多地板容易因行走、跳跃、舞蹈和类似活动而产生恼人的地板振动。尽管在过去的30年里已经对这个问题进行了研究，但问题地板已经变得越来越常见。这些问题主要是由于缺乏对楼板动力参数的准确定义，这反过来又导致各种设计指南的实测值和预测值之间的相关性很差，特别是有限元分析。在以往的研究中主要忽略了两个主要问题，即非结构元素的影响和居住者与结构相互作用对楼盖体系的影响。大多数非结构建筑构件是由非工程师(主要是建筑师)设计和详细设计的。不幸的是，建筑师们缺乏对这个问题的认识。拟议的研究项目意在解决上述问题。弗吉尼亚理工大学研究中心将建造一个两层结构，作为代表分析激励的一系列动态测试的全尺寸测试模型。据估计，测试设施的建造将在项目开始之日起的头18个月内完成。在这项为期两年的研究工作的剩余时间里，将进行一项简短的试验性研究，以考虑非结构元素和人-结构相互作用的影响。该项目的更广泛影响是：首先，测试结构将成为研究地板振动的永久中心。有兴趣开发新产品以解决这一问题的行业将能够使用该设施来测试他们的产品。这将是建筑与城市研究学院和弗吉尼亚理工大学工程学院之间的合作努力。建筑学和土木工程专业的学生将可以使用这个设施进行他们的研究项目，并帮助他们了解这个问题的不同方面。督学将把这项研究的成果纳入他们的建筑学和土木工程课程。将尽一切努力让学生加入代表不足的群体和少数民族参与这项研究。此外，本科生将通过NSF-REU计划包括在内。

Study of the Effects of Non-Structural Building Elements and Human-Structure Interaction on the Dynamic Behavior of Floors Subjected to Human MovementsMehdi Setareh, and Thomas M. MurrayPROJECT SUMMARYRecent advances in the development of higher strength materials coupled with more efficient construction techniques, more accurate computer-assisted structural analysis and design, new design methods, and more common use of long-span structures by architects have resulted in many floors that are susceptible to annoying floor vibrations due to walking, jumping, dancing, and similar activities.Even though this problem has been studied during the past thirty years, problem floors have become an increasingly common occurrence. These problems are mainly due to a lack of accurate definition of the dynamic parameters of floors, which in turn have caused poor correlations between the levels of measured and predicted vibrations by various design guides and particularly finite element analyses. Two major issues that have been mainly ignored in previous research are the effects of non-structural elements and the effects of the interaction of occupants and structure on the floor system. Most non-structural building elements are designed and detailed by non-engineers, mainly architects. Unfortunately, there is a lack of awareness of this problem among architects. The proposed research project intends to address the above problems. A two-story structure will be constructed at the Virginia Tech Research Center to act as a full-scale test model for a series of dynamic tests representative of the analytical excitations. It is estimated that the construction of the testing facility will be completed within the first eighteen months from the project starting date. A short pilot study to consider the effects of the non-structural elements and human-structure interactions will be conducted during the remainder of this two-year research effort.The broader impacts of this project are: First, the test structure will be a permanent center for the study of floor vibrations. Industries interested in the development of new products to address this problem will be able to use the facility to test their products. This will be a collaborative effort between the College of Architecture and Urban Studies and the College of Engineering of Virginia Tech. Students in the architecture and civil engineering programs will have access to this facility for their research projects, and help them understand the different aspects of this problem. The PIs will incorporate the results of this research into their architecture and civil engineering courses. All efforts will be made to involve students in the under-represented groups and minorities in this research. In addition, undergraduate students will be included through the NSF-REU program.