프리캐스트 프리스트레스트 콘크리트 중공슬래브 교량의 분절거동 = Behavior of Segments in Precast Prestressed Concrete Hollow Slab Bridges

다국어 초록 (Multilingual Abstract)

Precast construction method for prestressed concrete bridge is increasingly used than the cast-in place construction method due to the effectiveness of construction and quality control. In the precast bridge construction, the behavior of connections between segments which are connected by shear keys is very important. The so-called precast prestressed concrete hollow slab bridge is one of the segmental bridges which can be a long span, so that the structural behavior of joints of adjacent segment should be evaluated by the experiment. In this study, small scaled beam tests were carried out to determine the joint shear key shape and the restraint stress by prestressing.
From the test results, it was found that the joint key shape and the restraint stress affect the behavior of segments and the segments which has ratio of the height to the width of shear key 1/3, possess maximum shear resistance.