Abstract
This research intended to improve jointing method of re-bars between PCa (precast) block and cast-in-place concrete especially for large structure, and experiments were conducted against bending moment and shear force. Main target of the improvement was put on reduction of the extruding length of re-bars from PCa block to cast-in-place side in order to raise productivity of PCa blocks as well as easiness of transportation from a PCa factory to construction sites. In our research, several new jointing methods other than the lapped joint were proposed and tested under action of the bending moment and shear force, and we found that a type with loop-shaped re-bars displayed approximately same load bearing capacity and deformation capability if compared with genuine specimen which had non-jointed re-bars.
