| ¼ö·Ï»çÇ× |
Çѱ¹´ë°ø°£°ÇÃà ³í¹®Áý , Vol. 26, No. 1 (Åë±Ç 103È£)(2026-03) |
| ÁÖÁ¦¾î |
; Reinforced concrete; Beam-column connection; Joint shear strength; Bi-directional loading; Modification factor |
| ¿ä¾à2 |
This study aims to refine the existing shear strength model for reinforced concrete(RC) beam?column connections by explicitly incorporating the bi-directional loading effect, which more accurately reflects the actual loading conditions of RC structures during earthquakes. A new database consisting of 21 RC beam?column connection specimens tested under simultaneous bi-directional loading was collected and analyzed to investigate the influence of key parameters on joint shear strength. The results revealed that the joint configuration and the presence of a slab are the primary factors governing the extent of bi-directional loading effect on joint shear strength. Based on these findings, a set of simple and practical modification factors was proposed to refine the existing joint shear strength model to account for bi-directional loading effect. The outcomes of this study provide a rational basis for incorporating bi-directional loading effect into the shear strength evaluation of RC beam?column connections. |