scholarly journals Cyclic loading test to clarify nonlinear behavior of an isolated bridge supported by high damping rubber bearings.

2001 ◽  
pp. 81-100
Author(s):  
Gaku SHOJI ◽  
Kazuhiko KAWASHIMA ◽  
Atsushi SAITO
Keyword(s):  
Cyclic Loading ◽  
Nonlinear Behavior ◽  
Loading Test ◽  
Cyclic Loading Test ◽  
High Damping Rubber Bearings ◽  
High Damping Rubber ◽  
Rubber Bearings ◽  
Isolated Bridge

Seismic response of isolated bridge with high damping rubber bearings

2019 ◽  
Vol 12 (1) ◽  
pp. 2-9 ◽  
Author(s):  
Yoshiaki Okui ◽  
Keisuke Nakamura ◽  
Takashi Sato ◽  
Takashi Imai
Keyword(s):  
Seismic Response ◽  
High Damping Rubber Bearings ◽  
High Damping Rubber ◽  
Rubber Bearings ◽  
Isolated Bridge

Hysteretic Restoring Force Characteristics of High Damping Rubber Bearings Under High Compressive Stress

2004 ◽  
Author(s):  
Yasuhiro Kasahara ◽  
Shigenobu Suzuki ◽  
Takashi Kikuchi
Keyword(s):  
Compressive Stress ◽  
Seismic Isolation ◽  
Damping Ratio ◽  
Loading Test ◽  
Restoring Force ◽  
Scaled Model ◽  
High Damping Rubber Bearings ◽  
High Damping Rubber ◽  
Rubber Bearings ◽  
Force Characteristics

Hysteretic restoring force characteristics — shear stiffness, equivalent damping ratio, and ultimate properties — of seismic isolation bearings are significantly affected by compressive stress. In this study, dependence of shear properties of high-damping rubber bearings (HDR) on the compressive stress σ and secondary shape factor S2 was studied by dynamic loading test with scaled-model and static loading test with full-scale isolators. The results highlighted the high compressive stress dependency on restoring force characteristics of HDR with the isolator of relatively small S2. It is concluded that large S2 is desired when isolators are designed for high compressive stress. The applicability of HDR under high compressive stress was experimentally verified.

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