| Title |
Hysteretic Behavior of Exterior Column-Wide Beam Joint with Various Column Shape and Beam Depth |
| Authors |
Seo Soo-Yeon ; Yoon Seung-Joe ; Yoon Yong-Dae |
| Keywords |
Wide Beam-Column Joint ; Spandrel Beam ; Effective Width of Beam ; Column Width and Depth ; Beam Depth |
| Abstract |
In wide beam, how the effective width is decided is very important since the calculation of stiffness and strength of the beam is based on it. Several research works have been conducted by previous researcher to find the effective width of wide beam. And also New zealand code prescribes a formula to calculate it. However these didn't consider the effectiveness of spandrel beam in exterior joint, which affects the behavior of wide beam. In this study, therefore, an evaluation on seismic resistance capacity of the exterior column-wide beam joint with spandrel beam is performed. Five specimens are designed to have variable test parameters; that are column width, column depth and the beam depth. Cyclic loads are applied to the beam end of test specimen according to the test procedure suggested by ACI committee. Before the test, previous formula to calculate the effective of wide beam were reviewed and the strength of specimens was predicted by using these.
From the test, it was found that the ultimate strength of specimen linearly increased when the beam or column depth increased; the variation of column depth was more sensitive to the strength of specimens. The comparison result by using previous formula in predicting the strength of specimen shows that most close prediction can be possible when uses Wight's one. Other two formula codified in ACI or New zealand code underestimate test results. |