総説
30年を経過した建築免震用積層ゴムの性能および材料特性
キーワード:
Seismic Isolation Building,
Rubber Bearing,
Aging,
Horizontal Stiffness,
Vertical Stiffness,
Creep
2020 年 93 巻 1 号 p. 3-9
詳細
2020 年 93 巻 1 号 p. 3-9
Performance of laminated natural rubber bearing used for 30 years in seismic isolation building was evaluated. Horizontal stiffness increased by 14.6% and vertical stiffness increased by 5.9% for 30 years. It was confirmed from rubber physical property tests that change in physical properties with age remained within a limited range from the surface of the laminated rubber bearing. Moreover, these results were compared with other research results, and the validity of the rate of change in performance of laminated rubber bearing was verified.
