| 摘要 |
PROBLEM TO BE SOLVED: To provide a seismic damping mechanism which improves the energy absorbing efficiency of a seismic damper by positively forming a plastic hinge by partially changing materials at a portion of a supporting pier to which the seismic damper is fixed. SOLUTION: The seismic damping mechanism 1 has a seismic damper 30 fixed to the supporting pier 2 of a structure, which seismic damper has viscoelastic body layers sandwiched between a plurality of alternately arranged steel strips or rectangular steel strips. The steel strips are projected from the viscoelastic body layers in the longitudinal direction. In the seismic damping mechanism 1, a portion between a capital 4 and a pedestal portion 5 of the supporting pier 2 is composed of steel having a very low yield point. COPYRIGHT: (C)2004,JPO |
