| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 265874 | Engineering Structures | 2016 | 12 Pages |
•Roof wide and conventional beam-column joints were investigated under cyclic loads.•Both of the specimens had almost equal energy dissipation capacity.•In wide or conventional beam, bottom bars showed better bond behavior than top bars.•Roof wide beam-column joint performed quite well in carrying lateral loads.•Joint shear requirements can be relaxed for roof wide beam-column joints.
Performance of RC interior beam-column joints at roof level is defined as the area needing research by ACI 352R-02. Because of a lack of research data on performance of this type of joints, two half scale interior beam-column connections with discontinuous column were designed in accordance with ACI 318-11 and ACI 352R-02 provisions. One of the specimens had wide beams and the other had conventional beams to compare their behavior. These specimens were tested under quasi-static cyclic loading. It became clear by the experiments that roof wide beam-column joint had lower strength compared to that of roof conventional beam-column joint. Both of the specimens had almost equal energy dissipation capacity. The conventional beam-column joint reached its expected capacity but wide beam-column joint did not reach its capacity. Moreover, wide beam-column joint had sufficient joint shear strength unlike conventional one. Therefore, joint shear requirements could be relaxed for roof wide beam-column joint. This relaxation must be reapproved by more tests to be advisable for design purposes.
