Estimation and mitigation of vibrations in reinforced concrete solid slabs

体育场馆、健身房、有氧舞蹈工作室、迪斯科舞厅、购物中心和机场航站楼走廊都承受着使用者在停留在一个位置或穿过建筑物时产生的重大动载荷(人为诱发的振动)。此外，靠近地面列车和地铁的结构也会受到地面列车和地铁诱发的振动。尽管如此，现有的设计规范和标准主要关注通过满足强度要求来避免结构失效，而通过满足有限程度的适用性要求来处理过度振动。因此，出现了适用性问题，需要进行昂贵的改建或修订建筑法规。需要一种有效的减振系统来将建筑物楼层的振动降低到可接受的水平。目前的研究将涉及西方大学(UWO)的研究人员和咨询公司Valcuttics Canada Ltd.(VCL)的工程师之间的合作。研究的主要目的是建立一个数值模型来模拟钢筋混凝土实心板在不同振源激励下的振动性能，并评估不同的几何参数(如厚度、面内尺寸)和隔震系统的性能对板的振动性能的影响。该数值模型将使用其他商业软件和VCL公司提供的现场测量进行验证。这项研究将帮助VCL扩大结构振动领域，并引入替代系统和策略，以减轻包括医院、学校、零售区和舞蹈工作室在内的各种新建建筑的振动。

Sports stadiums, gymnasiums, aerobic dance studios, discotheques, shopping malls and airport terminal corridors are all subjected to significant dynamic loads (human-induced vibration) produced by occupants either while remaining in one location or traversing the structure. Also, structures located near surface trains and subways are subjected to surface train and subway-induced vibrations. Despite these facts, available design codes and standards are primarily concerned with avoiding structural failure by satisfying strength requirements, while they deal with excessive vibrations by satisfying a limited degree of serviceability requirements. Thus serviceability problems arises which require costly remodeling or revision of building regulations. An efficient vibration mitigation system is needed to reduce vibrations in buildings' floors to acceptable levels. The current study will involve collaboration between researchers at Western University (UWO) and engineers from the consulting firm Valcoustics Canada Ltd. (VCL). The main objective of the study is to develop a numerical model to simulate reinforced concrete solid slabs under different sources of vibration excitation and to assess the effect of different geometric parameters (e.g. thickness, in-plane dimensions) and properties of the isolation system on the vibration performance of the slab. The numerical model will be validated with other commercial software and with field measurements that will be provided by the firm VCL. This study will assist VCL to expand in the structural vibration field and to introduce alternative systems and strategies to mitigate vibration in a wide range of newly built structures including hospitals, schools, retail areas, and dance studios.