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Abstract:
The material properties and mechanical properties of low stiffness rubber bearings are systemically performed both in test and in theory in our research. There are two types of low stiffness rubber bearings, natural rubber bearings (NRB) and lead plug rubber bearings (LPRB), total 18 specifications and 30 large diameter specimens are tested for grasping various properties. The characteristics of low stiffness rubber bearings include fundamental properties such as vertical stiffness, horizontal stiffness and damping; extreme properties such as buckling, extreme compressive stress and maximum shear strain; various dependence such as compressive stress, shear strain and temperature; duration properties of aging and creeping. In this paper, various dependence of compressive stress, shear strain and temperature are studied for both NRB and LPRB, and aging, creep are tested too to grasp the properties of low stiffness rubber bearings. A modified formula for temperature and a modified stiffness and yield load table are provided in the end of the paper for analyzing the earthquake response.
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Journal of Earthquake Engineering and Engineering Vibration
ISSN: 1000-1301
Year: 2002
Issue: 6
Volume: 22
Page: 115-121
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 5
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