| Title |
Evaluation on Tension Stiffening and Cracking Behavior of Ultra-High Performance Concrete Members with Strands |
| Authors |
Park, Min-Kook ; Han, Sun-Jin ; Kim, Kang Su |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.5.125 |
| Keywords |
ultra-high performance concrete ; tensile behavior ; strain hardening ; cracking behavior ; crack spacing |
| Abstract |
Ultra-high performance concrete (UHPC) has high compressive and tensile strengths due to the particle packing, and its ductile behavior can
be ensured by utilizing steel fibers. However, since the UHPC members exhibit different characteristics of crack behavior and tensile
behavior from normal concrete, the tension stiffening and cracking characteristics of the UHPC should be accurately modeled for the design
and analysis of the UHPC members. In this study, uniaxial tension tests was conducted on the UHPC members with strands, where the test
variables were diameter and reinforcing ratio of strands. Detailed analyses were also conducted to identify the tensile characteristics and
crack behavior of the UHPC members. By comparing the test results with current code provisions and other models proposed by existing
researchers, their applicability for estimation of crack behavior of the UHPC members was examined. |