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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Comparison of fundamental properties of new types of fiber-mesh-reinforced seismic isolators with conventional isolators
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Comparison of fundamental properties of new types of fiber-mesh-reinforced seismic isolators with conventional isolators

机译：新型纤维网增强型地震隔离器与常规隔离器的基本性能比较

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New types of fiber-reinforced rubber-based seismic isolators have been a research interest for a number of engineers in the past decade. These new types of isolators can have similar seismic performances compared with the conventional ones. In most of the previous researches, the fiber-reinforced rubber-based isolators is usually manufactured with placing fiber sheets between precut rubber layers with the use of a bonding agent. This research differs from the previous researches in terms of manufacturing process, use of fiber mesh instead of fiber sheets, and use of lead in the core for some of the bearings. The aim of this research is to provide comparisons in fundamental seismic response properties of the new type of fiber mesh reinforced isolators and conventional isolators. In this scope, four pairs of fiber mesh reinforced elastomeric bearings and four pairs of steel-reinforced elastomeric bearings are subjected to various levels of compression stresses and cyclic shear strains under constant vertical pressure. The tested types of isolators are fiber mesh reinforced elastomeric bearing, fiber mesh reinforced elastomeric bearing with lead core, steel-reinforced elastomeric bearings, and steel-reinforced elastomeric bearings with lead core. In this research, steel-reinforced bearings are called conventional isolators. The major advantage for fiber mesh reinforced bearings observed during the tests is that these isolators can develop a considerable low horizontal stiffness compared with the conventional isolators. The damping characteristics of the new and conventional types are similar to each other.
机译：在过去的十年中，新型纤维增强的橡胶基地震隔离器引起了许多工程师的研究兴趣。与传统的隔离器相比，这些新型的隔离器可以具有相似的抗震性能。在大多数先前的研究中，纤维增强的橡胶基隔离器通常是通过使用粘合剂将纤维片放在预切橡胶层之间来制造的。这项研究与以前的研究不同之处在于制造过程，使用纤维网代替纤维片以及在某些轴承的芯中使用铅。这项研究的目的是提供新型纤维网增强隔离器和常规隔离器的基本地震响应特性的比较。在此范围内，在恒定的垂直压力下，四对纤维网增强的弹性体轴承和四对钢增强的弹性体轴承承受各种水平的压缩应力和循环剪切应变。隔离器的测试类型为：纤维网增强弹性轴承，带引线芯的纤维网增强弹性轴承，钢增强弹性轴承和带引线芯的钢增强弹性轴承。在这项研究中，钢制轴承被称为常规隔离器。在测试过程中观察到的纤维网增强轴承的主要优点是，与传统的隔离器相比，这些隔离器可产生相当低的水平刚度。新型和传统类型的阻尼特性彼此相似。

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