Proceedings of the Earthquake Engineering Society of Korea Conference (한국지진공학회:학술대회논문집)
- 1998.10a
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- Pages.136-143
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- 1998
The Design Criteria of Elastomeric Bearing for Highway Bridges
교량용 탄성받침의 설계압축응력에 대한 고찰
Abstract
Elastomeric bearing is used as one of the most useful way for isolation structures, because the horizontal stiffness is much lower than the vertical stiffness. The quality of Elastomeric bearing depends on the vulcanization procedure to manufacture, which produces the elasticity of the rubber from the compound of rubber and sulphur. The durability of Elastomeric bearing is affected by the deterioration due to ozone and ultra-violet attack. but the durability during the design life of bridges can be assured by the sufficient size of the bearing in spite of the deterioration in surface. In the design criteria of Elastomeric bearing, the stability of the bearings is evaluated by shear strain due to compression, lateral displacement, and rotation. The question how soft rubber can sustain heavy structure is now able to be solved by Ultimate capacity test of Laminated elastomeric Bearings, which results 1,200kg/
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