EXPERIMENTAL STUDY ON LOAD-CARRYING CAPACITY OF NEW REBAR CONNECTION SYSTEM BETWEEN PRECAST CONCRETE MEMBERS

Abstract

 When precast concrete structure is constructed, it may be concerned that the joint work takes much time and causes structural weaknesses. Therefore, in this study, two types of new rebar connection systems between precast members were proposed. These connections have special tools attached in the tops of rebars which protrude from adjacent precast members, and the whole of these tools and around it are combined by high performance mortar after their members are connected. This paper described the load carrying capacities with proposed joints by experimental approaches, such as tension test for the specimen extracting a pair of connection, and static load test for the specimen with joints modeling precast road bridge deck slab. These results revealed that one of new connection systems had sufficient load bearing performance.