구조용 데크플레이트를 사용한 연속 합성슬래브 시스템의 모멘트 재분배 및 소성회전능력

초록

The objective of this study is to evaluate the moment redistribution and plastic rotation of continuous one-way composite slabs reinforced with structural steel decking. A total of 8 two-span continuous slabs with fixed-ends were tested and compared with limit analysis approaches. Theoretical moment capacity and curvature for section subjected to positive or negative moment were calculated by section laminae method. Test results showed that flexural behavior and rotation were greatly influenced by the amount of top bar in negative moment region. Also, the welded wire fabric used as top bar in negative moment region could result in decreasing total load capacity of slabs due to impairing moment redistribution. The predictions, maximum load and plastic rotation capacity, obtained from proposed analysis method were in good agreement with the test results.

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