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首页> 外文期刊>International journal of steel structures >Hysteretic Behavior of Rubber Bearing with Yielding Shear Devices
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Hysteretic Behavior of Rubber Bearing with Yielding Shear Devices

机译：橡胶轴承带剪切装置的滞后行为

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摘要

Using the perforated yielding shear plates as an energy dissipated device instead of lead core in rubber bearing is assessed in this paper. The advantage of this innovative isolator compared to lead rubber bearing is the ability of being replaced easily and its less displacement with high ability of energy dissipation. Three different isolators with perforated shear plates with hole cross-section of 15%, 18%, and 33% of cross-sectional of plate surface area are investigated. Three types of shear plates of 2, 3 and 4mm thicknesses made of two types of steel with different yield stress are assessed. By decreasing the shear plate thickness and increasing the number of the plate holes and selecting the shear plate with lower yield stress, the effective stiffness and the amount of energy dissipation and lateral force in the isolator are reduced. Changing shear plate thickness and number of holes do not affect the viscous damping, while increasing the plate yield stress increases viscous damping. Therefore the choice of the shear plate with appropriate thickness, number of holes and plate yield stress can lead to an isolator with acceptable behavior. The suggested isolator can achieve similar characteristics of lead rubber bearing at 50% shear strain and therefore its design basics should be defined differently rather than lead rubber bearing.
机译：本文评估使用作为能量耗散的装置而不是橡胶轴承中的铅芯的穿孔剪切板。与铅橡胶轴承相比，这种创新隔离器的优势是易于更换的能力，其较低的能量耗散能力较低。研究了具有15％，18％和33％的具有孔横截面的穿孔剪切板的三种不同的隔离器进行了研究。评估了由两种类型的钢制成的2,3和4mm厚度的三种剪切板进行评估。通过减小剪切板厚度并增加板孔的数量并选择具有较低屈服应力的剪切板，减少了隔离器中的有效刚度和能量耗散量和横向力。改变剪切板厚度和孔数不会影响粘性阻尼，同时增加板屈服应力增加粘性阻尼。因此，具有适当厚度的剪切板的选择，孔数量和板屈服应力可以导致具有可接受的行为的隔离器。建议的隔离器可以在50％剪切应变下实现铅橡胶轴承的相似特性，因此其设计基础应不同地定义而不是铅橡胶轴承。

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