521 仕口補強円弧型制振ばねダンパの開発 : 木造枠組のせん断試験および振動試験

概要

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The authors develop a circular arc shaped spring damper in order to keep soundness and reduce damage wooden structure when the earthquake is happened. The spring damper is composed of viscoelastic material which is sandwiched by two steel plates. It is able to strengthen stiffness by the steel plates, and give a damping by viscoelastic material. The damper is available for not only wood houses, also old structures such as castles and temples, since it can be attached easily. In this paper, in order to confirm effects of bearing wall and vibration reduction under earthquake, shear strength tests and seismic vibration tests using a real scale bearing wall are carried out. A test frame of the bearing wall has 2.73 m high and 1.8 m wide. The test frame is horizontally loaded by using an actuator, and force and deformation are measured. Shear strength of the bearing wall is estimated. Next the test frame is horizontally shaken by earthquake using a shaking table. The response accelerations and relative displacements are measured, and the effect of vibration reduction is confirmed experimentally. Finally, a feasibility study about the spring damper is confirmed.
一般社団法人日本機械学会の論文
2011-09-05