U字型プレキャスト部材を用い材端で全数縦重ね継手した梁部材に関する実験的研究

概要

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For the purpose of comprehending the performance and the bond characteristics of reinforced concrete beam with all lapped splices in beam depth way at the critical region using U-shaped precast beam with longitudinal and transverse reinforcing steel bars, the authors performed cyclic loading tests for beams subjected to bending moment and shear force. In this case, the splicing reinforcing steel bars passed through beam-column joint are put on top of bottom bars(vertical splicing). As the result, it is clarified that 1) length of yield region was 1/2 of beam depth, 2) stress of main bar at end of lapped splice was evaluated by assuming the truss mechanism under the truss angle 45°, 3) the bond splitting strength of vertical splicing was evaluated by considering vertical binding force required to transmit bond force of splicing bar on the basis of assuming the truss mechanism and using the past evaluation of bond splitting strength.
社団法人日本建築学会の論文
2004-03-30