| Title | Dynamic And Failure Properties of High Damping Rubber Bearing Under High Axial Stress |
| Authors | Ishizuka, Hidetake; Murota, Nobuo; Fukumori, Takeshi |
| Publication | Seismic, Shock, and Vibration Isolation, PVP-Vol.319, 1995 |
| Objectives | To test the dynamic and failure properties of high-damping rubber bearings with applied axial pressures over 11.75 MPa and compare the performace criteria with the conventional pressures of 6.4 MPa. |
| Abstract | Seismic isolation bearings have been used under axial stresses less than 100(kgf/cm^2) for many years. If higher axial loads can be applied, however, a larger period shift will be achieved and the size of the isolation devices may be reduced resulting in a cost reduction of the bearing. This paper describes experimental studies of dynamic and failure properties of high damping rubber bearings (HDR) under axial stress of over 120(kgf/cm^2) compared with the conventional stress of 65(kgf/cm^2). The results show that HDR continues to have stable performance under high axial stress with high shear strain. It indicates that high axial stress over 100(kgf/cm^2) is within the capability of the HDR isolation bearing. |
