積層ゴムに作用する引張力の弾性ゴムワッシャーによる低減

概要

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To reduce tension force acting on base-isolators of laminated rubber bearing, a tension control device which can change tensile vertical stiffness of base-isolators is proposed. This tension control device is assembled by two laminated rubber bearings (which have 50% of thickness of rubber layer parts for ordinary rubber bearings used as base-isolators) piled-up and connected with elastic rubber washers and bolts. By operating tension load tests for elastic rubber washers, the effect of the tension control devise is investigated experimentally. Comparative load tests are executed for two types of piled-up double laminated rubber bearings with and without elastic rubber washer. By evaluating results of tension load tests for those two types of rubber bearings, it is assured that tensions and vertical deformations of rubber bearings can be effectively controlled by installing elastic rubber washers between two rubber bearings. Moreover, estimations of proposed tension device for practical use are operated and effectiveness of this control device are assured.
一般社団法人日本建築学会の論文
2000-03-20