@article{(Open Science Index):https://publications.waset.org/pdf/10008528, title = {Evaluation for Punching Shear Strength of Slab-Column Connections with Ultra High Performance Fiber-Reinforced Concrete Overlay}, author = {H. S. Youm and S. G. Hong}, country = {}, institution = {}, abstract = {This paper presents the test results on 5 slab-column connection specimens with Ultra High Performance Fiber-Reinforced Concrete (UHPFRC) overlay including 1 control specimen to investigate retrofitting effect of UHPFRC overlay on the punching shear capacity. The test parameters were the thickness of the UHPFRC overlay and the amount of steel re-bars in it. All specimens failed in punching shear mode with abrupt failure aspect. The test results showed that by adding a thin layer of UHPFRC over the Reinforced Concrete (RC) substrates, considerable increases in global punching shear resistance up to 82% and structural rigidity were achieved. Furthermore, based on the cracking patterns the composite systems appeared to be governed by two failure modes: 1) diagonal shear failure in RC section and 2) debonding failure at the interface. }, journal = {International Journal of Structural and Construction Engineering}, volume = {12}, number = {1}, year = {2018}, pages = {56 - 61}, ee = {https://publications.waset.org/pdf/10008528}, url = {https://publications.waset.org/vol/133}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 133, 2018}, }