Experimental study on a new precast post-tensioned concrete beam column connection system
The objectives of this study were to investigate the hysteresis characteristics, shear transferring capacity, damage state and possibility to disassemble the precast unbonded post-tensioned connections with and without shear bracket under the simultaneous cyclic load and large gravity load. Three half-scale specimens of precast unbonded post-tensioned exterior beam-column connection of large span frame was proposed and tested. The test results of the specimen without shear bracket showed excessive beam slip, resulted in large residual deformation,while the specimens with shear bracket that have the amount of prestressed steel 50% less than that of the specimen without shear bracket expressed very good performance with very small residual deformation, almost no slip, minor damage to the beam and column elements, and easy to disassemble even after experienced the story drift up to 6% drift.
Precast concrete Post-tensioned Exterior beam column connection Shear friction.
Do Tien THINH Koichi KUSUNOKI Akira TASAI
Department of Architecture, Yokohama National University, Yokohama, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）