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Title |
A Study on the Characteristics of Bridge Bearings Behavior by Finite Element Analysis and Model Test
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Authors |
이재욱 ; 정희영 ; 오주 ; 박진영 ; 김씨동 |
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Keywords |
진동 ; 유한요소해석 ; 축소모형 ; 스페리컬받침 ; 탄성받침 ; Vibration ; Finite element analysis ; Scale-downed model ; Spherical bearing ; Elastomeric bearing |
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Abstract |
The increased vibration level of the railway bridge could make significant noise and, also, cause structural damages such as fatigue cracks. Related to these subjects, a spherical elastomeric bridge bearing, which is layered by hemispherical rubber and steel plates, was investigated in terms of its vibration performance. Several different shape factors could be considered by changing the curvature of hemispherical surface and size in rubber and steel plate thicknesses in the manufacturing stage. The performance of the spherical elastomeric bearing for the reduction in vibration was compared with that of the conventional bearing by performing vibration experiments on a scale-downed model. The rubber material characteristics and spherical shape are found to be important parameters in reducing the bridge vibration.
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