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Title |
An Experimental Study on the Girder-Abutment Connection for the Steel-Concrete Composite Rigid-Frame Bridge Integrated with PS Bars
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Authors |
이상윤 ; 안영수 ; 오민호 ; 정지승 ; 양성돈 |
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Keywords |
교대 일체식 교량 ; 강합성 라멘교 ; 접합부 ; 프리스트레스 ; 실물모형실험 ; integral bridge ; steel-concrete composite rigid-frame bridge ; connection ; prestress ; real-scaled experimental test |
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Abstract |
Steel-concrete composite rigid-frame bridge is a type of integral bridge having advantages in bridge maintenance and structural efficiency from eliminating expansion joints and bridge supports, the main problems in bridge maintenance. The typical steel-concrete composite rigid-frame bridge has the girder-abutment connection where a part of its steel girder is embedded in abutment for integrity. However, the detail of typical girder-abutment connection is complex and increases the construction cost, especially when a part of steel girder is embedded. Recently, a new type of bridge was proposed to compensate for the disadvantages of complex details and cost increase. The compensation are expected to improve efficiency of construction by simplifying the construction detail of the girder-abutment connection. In this study, a static load test has been carried out to examine the behavior of the girder-abutment connection using real-scale specimens. The results of the test showed that the girder-abutment connection of proposed girder bridge has sufficient flexural capacity and rebars to control concrete crack should be placed on the top of abutment.
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