Designing Moment-resisting Connection for Disassembly for Implementation in Precast Reinforced Concrete Buildings

Abstract

This dissertation proposed a feasible DfD (Design for Disassembly) moment-resisting (MR) connection for implementation in residential high-rise apartment blocks in Singapore. The proposed DfD M-R connection was studied and the findings reported in this dissertation based on the experimental investigation and numerical study carried out. The proposed DfD connection was shown to possess significant moment resistance based on theoretical calculations and preliminary numerical analysis. A three-phase full scale experimental test programme was conducted to investigate the structural performance of the proposed DfD M-R connection. In general the proposed DfD connections were found to be capable of providing significant moment resistance as well as good ductility when subjected to four-point-bending load and reverse cyclic load. Finite element analysis was also performed to study the performance of the proposed DfD M-R connection when used as part of a typical RC frame.