Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2008.06a
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- Pages.1729-1734
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- 2008
Characteristics and Replacement of Separated Spherical Bridge Bearings
분리형 스페리칼 교량받침의 특징 및 교체실험
- Published : 2008.06.12
Abstract
This study developed a new separated shperical bridge bearing that can be used for replacement of existing bridge bearings without crushing bearing-concrete. The separated spherical bearing have the upper and lower sole plate connected by bolts to the upper plate under bridge-girders and the lower plate on bearing-concrete. The targets of the separated spherical bearing are the maximum 3 mm of up-lifting height during replacement and the maximum required time of 30 minutes. Four separated spherical bearings are manufactured and replaced the existing bearings of a railway bridge in service and the replacing tests was performed. The number of the tests is two and the target of maximum 3 mm and 30 minutes was satisfied.
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