Farzampour Alireza
Department of Permitting, Inspections and Enforcement, Washington, DC 20774, USA.
Materials (Basel). 2022 Jan 21;15(3):805. doi: 10.3390/ma15030805.
To resist the imposed lateral forces on the structures, hysteric dampers are developed from steel plates and strategically implemented within various structural applications. Structural shear dampers have recently been used to alleviate damage, while remaining members remain intact and undamaged. The practical use of the innovative dampers in structural applications is investigated in this study. For this purpose, the design methodology for a set of innovative shear dampers is initially elaborated, for which the dampers are designed considering the governing shear and flexural ductile limit states, while the brittle buckling limit state is prevented. Subsequently, the finite element modeling methodology is verified and compared to laboratory tests for computationally analyzing various shapes of the shear damper in structural applications. Three major general prototype structures are established, and shear dampers are designed to be incorporated in prototype applications. For each of the proposed applications, at least six different shapes of shear dampers are designed and subsequently compared with conventional systems. The results determined that the use of innovative shear dampers could effectively reduce demand forces on the boundary elements by more than 40% on average, while the strength and the stiffness alter within margin of difference less than 5%.
为了抵抗施加在结构上的侧向力，滞回阻尼器由钢板制成，并在各种结构应用中进行策略性安装。结构剪切阻尼器最近被用于减轻损伤，而其余构件保持完好无损。本研究对创新阻尼器在结构应用中的实际应用进行了调查。为此，首先阐述了一组创新剪切阻尼器的设计方法，在设计阻尼器时考虑了主导的剪切和弯曲延性极限状态，同时防止脆性屈曲极限状态。随后，对有限元建模方法进行了验证，并与实验室测试进行了比较，以通过计算分析结构应用中各种形状的剪切阻尼器。建立了三个主要的通用原型结构，并设计了剪切阻尼器以纳入原型应用中。对于每个提议的应用，至少设计六种不同形状的剪切阻尼器，随后与传统系统进行比较。结果表明，使用创新剪切阻尼器可以有效降低边界构件上的需求力，平均降低幅度超过40%，而强度和刚度的变化幅度在小于5%的差异范围内。
