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首页> 外文会议>World conference on earthquake engineering;WCEE >THE TENSILE TESTS OF NATURAL RUBBER BEARINGS FOCUSEDON THE EFFECT OF THE STEEL FLANGE PLATES
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THE TENSILE TESTS OF NATURAL RUBBER BEARINGS FOCUSEDON THE EFFECT OF THE STEEL FLANGE PLATES

机译：天然橡胶轴承的拉伸试验对钢翼缘板的影响

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摘要

This paper presents the experimental results from the tensile loading of laminated rubber bearings that areused for the base-isolated buildings. The tensile tests are carried out to understand the mechanicalcharacteristics of Natural Rubber Bearings (NRB) under tensile stress up to –1N/mm2 as the usual designlimit. The vertical and horizontal characteristics are investigated as to the effect of flange plate thicknessand the scale effect. These characteristics are evaluated by the tensile-compressive tests under constantshear strain and the shear tests under constant tensile stress or strain. For the effect of flange platethickness, the flanges with different thickness are used for 500mm in diameter of NRB. For the scaleeffect, NRB with a diameter of 500mm and 1000mm of the same shape factors are used. From the testsresults, it is found that the tensile stiffness is sensitive to the flange plate thickness, the shear stiffnessunder tensile stress –1N/mm2 is not influenced by neither the tensile condition nor flange plate thicknessand the scale effect in small tensile region is small.
机译：本文介绍了用于基础隔震建筑物的层压橡胶轴承的拉伸载荷的实验结果。进行拉伸试验是为了了解天然橡胶轴承（NRB）在高达–1N / mm2的拉伸应力（通常的设计极限）下的机械特性。研究了凸缘板厚度和比例效应的垂直和水平特性。这些特性通过在恒定剪切应变下的拉伸压缩试验和在恒定拉伸应力或应变下的剪切试验进行评估。为了达到法兰厚度的目的，在NRB的直径为500mm的情况下使用不同厚度的法兰。对于缩放效果，使用具有相同形状因子的直径为500mm和1000mm的NRB。从试验结果可以看出，拉伸刚度对翼缘板的厚度敏感，在拉伸应力–1N / mm2下的剪切刚度不受拉伸条件和翼缘板厚度的影响，在小拉伸区域的尺度效应很小。

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