경량콘크리트를 사용한 프리캐스트 바닥판에서 스터드 전단열결재의 전단강도

Shear Strength of Stud Shear Connectors in Precast Concrete Deck using Lightweight Concrete

In order to evaluate the shear strength of stud connectors in composite bridges using lightweight concrete decks, static push-out tests were performed. Sixteen push-out specimens were tested during this investigation. The test program consisted of two groups according to deck type, one is cast-in-place(CIP) concrete deck, the other is precast concrete deck. The experimental parameters were concrete compressive strength and bedding layer thickness. Based on the experimental results, the ultimate shear strength and the stiffness of shear connectors in lightweight concrete decks are assessed.