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Structural Engineering and Mechanics Volume 27, Number 2, September30 2007 , pages 223-241 DOI: https://doi.org/10.12989/sem.2007.27.2.223 |
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The effects of stirrups and the extents of regions used SFRC in exterior beam-column joints |
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Mustafa Gencoglu
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| Abstract | ||
| Seven full-scale exterior beam-column joints were produced and tested under reversible cyclic loads to determine. Two of these seven specimens were produced using ordinary reinforced concrete (RC). Steel Fiber Reinforced Concrete (SFRC) was placed in three different regions of the beams of the rest five specimens to determine the extent of the region where SFRC is the most effective. The extent of the region of SFRC was kept constant at the columns of all five specimens. Three of these five specimens which had one stirrup in the joint, were tested to evaluate the effect of the stirrup on the behavior of the beam-column joint together with SFRC. In production of the specimens with SFRC, all special requirements of the Turkish Earthquake Code related to the spacing of hoops were disregarded. Previous researches reported in the literature indicate that the fiber type, the volume content, and the aspect ratio of steel fibers affect the behavior of beam-column joints produced with SFRC. The results of the present investigation show that the behavior of exterior beam-column joints depends on the extent of the region where SFRC is used and the usage of stirrup in the joint, in addition to the parameters listed in the literature. | ||
| Key Words | ||
| beam-column joint; reversible cyclic loading; steel fiber; concrete, energy capacity; ductility; earthquake. | ||
| Address | ||
| Mustafa Gencoglu: Istanbul Technical University, Faculty of Civil Engineering, Division of Structural Engineering, 34469 Maslak, Istanbul, Turkey | ||