Abstract
The punching shear behavior of slabs reinforced with high-strength steel reinforcement was studied and compared with that of slabs reinforced with conventional steel reinforcement. The high-strength steel selected for this research conforms to ASTM A1035-07. The influences of the flexural reinforcement ratio, concentrating the reinforcement in the immediate column region, and using steel fiber-reinforced concrete (SFRC) in the slab on the punching shear resistance, post-cracking stiffness, strain distribution, and crack control were investigated. In addition, the test results were compared with the predictions using various design codes. The use of high-strength steel reinforcement and SFRC increased the punching shear strength of slabs, and concentrating the top mat of flexural reinforcement showed beneficial effects on post-cracking stiffness, strain distribution, and crack control.
| Original language | English |
|---|---|
| Pages (from-to) | 468-475 |
| Number of pages | 8 |
| Journal | ACI Structural Journal |
| Volume | 107 |
| Issue number | 4 |
| Publication status | Published - 2010 Jul |
Keywords
- Cracking
- Fiber-reinforced concrete
- High-strength reinforcement
- Punching shear
- Slabs
- Stiffness
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction