| 種別 | paper |
| 主題 | Seismic Behavior of Precast Beam-Column Joints with Eccentricity |
| 副題 | |
| 筆頭著者 | Juan J. Castro（University of Tsukuba） |
| 連名者1 | Teruaki Yamaguchi（Kabuki Construction） |
| 連名者2 | Hiroshi Imai（University of Tsukuba） |
| 連名者3 | |
| 連名者4 | |
| 連名者5 | |
| キーワード | |
| 巻 | 16 |
| 号 | 2 |
| 先頭ページ | 829 |
| 末尾ページ | 834 |
| 年度 | 1994 |
| 要旨 | 1. INTRODUCTION A new concept was proposed to joint precast concrete members for frame-type structures. Here the precast concrete members are jointed at the end of the members through concrete cast in-situ at the beam-column joint, and the bar connections are located at the middle of precast members where the stresses due to seismic forces are small. The frame type buildings, due to architectural characteristics, present sometimes difficult configurations, that make the axes of the beams have eccentricity with respect to the column axes. Some studies on beam-column joints with eccentricities have been carried out in the past, specially on beam-column joints with wider columns and deeper beams with one side eccentricity. Also the seismic behavior of interior beam-column joints with various geometrical configurations was studied. In all cases they were carried out for monolithic reinforced concrete specimens. The present research was carried out to investigate the influence of the eccentricity on the seismic behavior of precast concrete beam-column joints. Also the effective width of the beam-column joint that contributes to resist the shear stress, and the contribution of the lateral reinforcement of beam column joints with supplementary cross ties were studied. 4. CONCLUSIONS From the test results the following conclusions can be drawn: 1)For the grade of eccentricity given to the specimens, the hysteretic curves showed no influence in the case of opposite side eccentricity. 2)For specimens with one side eccentricity, there was no further influence of the eccentricity, however as much as the column section was increased the average width value produced an overestimation of the effective joint width. 3)Independent of the eccentricity all the legs of the hoops of beam-column joints in both, the loading and the perpendicular, directions proved to be effective to resist the joint shear stress. |
| PDFファイル名 | 016-01-2138.pdf |