積層ゴムの大変形せん断履歴則

概要

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A hysteresis rule for horizontal restoring force characteristics of low-damping laminated rubber bearings was proposed. The hysteresis rule is a model that is composed of curve-representing formulas and can be known easily by intuition. It enables consideration of hardening and the shape of a hysteresis loop in the large deformation, and of the reduction of stiffness after large deformation. In order to verify the effectiveness of the hysteresis rule, large deformation load tests were conducted using laminated rubber bearings to compare the rule with the test results. As a result, it was confirmed that the hysteresis rule could satisfactorily represent the characteristics of the curves obtained by the tests regardless of the hardness of rubber. It was also found that the application of the hysteresis rule to the shear spring of an existing a macroscopic model could lead to good representation of cycles of horizontal restoring force and vertical displacement of a laminated rubber bearing under compressive axial force. It is concluded from the above that the hysteresis rule is highly accurate, and is fully practicable because it can be handled easily.
一般社団法人日本建築学会の論文
2001-03-20