An Experimental Study on the Structure Behavior of Deck Slabs in PSC Box Girder Bridges

프리스트레스트 콘크리트 박스거더 교량 바닥판의 구조거동에 관한 실험 연구

In this paper, an experimental study is carried out to find out structural behavior of upper slab in concrete box girder bridges. The major variables in the tests are the cross-section of upper slab including haunch dimensions. The strains of concrete and steel bars and the deflections of slabs are measured automatically during the tests. The test results indicate that the size of haunches has much influence on the structural behavior of box girders. The appropriate haunch dimensions are suggested from the present study.