| 種別 | Paper |
| 主題 | ANALYTICAL STUDY ON SHEAR RESISTANCE MECHANISMS OF RC BEAM-COLUMN JOINTS SUBJECTED TO SEISMIC FORCES |
| 副題 | |
| 筆頭著者 | Hiroshi NOGUCHI |
| 連名者1 | Kazuhiro WATANABE |
| 連名者2 | |
| 連名者3 | |
| 連名者4 | |
| 連名者5 | |
| キーワード | |
| 巻 | 9 |
| 号 | 2 |
| 先頭ページ | 717 |
| 末尾ページ | 722 |
| 年度 | 1987 |
| 要旨 | 1. INTRODUCTION There have been many active experimental studies for beam-column joints, but it is necessary to investigate the nonlinear behaviour of beam-column joints analytically in order to clarify the shear resistance mechanisms and develop a rational design method for beam-column joints. Therefore, in this study, the nonlinear behaviour of beam-column joints under reversed cyclic loading was analyzed by the FEM (1),(2),(3). An investigating approach in this study is shown in Fig. 1. Reflecting that previous finite element analysis have been used rather complementally for the investigation of test results, the change of stress flow in joint concrete is investigated from FEM analytical data in detail. Shear forces contributed by concrete and shear reinforcing bars are calculated from the FEM analytical data and they are compared with shear forces contributed by the corresponding components of the previous macro model. 9. CONCLUSIONS The nonlinear behaviour of reinforced concrete beam-column joints under reversed cyclic loading was analyzed by the FEM with the emphasis on the shear resistance mechanisms of a joint. The shear forces contributed by joint concrete could be estimated by the compressive strut mechanism model proposed by Park and Paulay considerably well. The truss model proposed by Park and Paulay was not in agreement with the contribution of joint reinforcing bars for the specimens without the middle longitudinal bars in the column. The further investigation is needed for the role of each component of the truss model. |
| PDFファイル名 | 009-01-2123.pdf |