Shear Strength and Behaviour of High Strength Fibrous Reinforced Concrete Deep Beams (HSFRCDB) With Shear Reinforcement
Abstract Twelve high strength fibrous reinforced concrete deep beams ( HSFRCDB ) were tested under two point loading . All the beams were reinforced with main steel reinforcement ratio ( p ) of about 2.4 percent to avoid flexural failure . The shear span - to - depth ratio ( a / d ) of the beams was...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Unviversity of Technology- Iraq
2005-05-01
|
| Series: | Engineering and Technology Journal |
| Online Access: | https://etj.uotechnology.edu.iq/article_182107_f38548c1dd832d9af586d9035942c8c1.pdf |
| Summary: | Abstract Twelve high strength fibrous reinforced concrete deep beams ( HSFRCDB ) were tested under two point loading . All the beams were reinforced with main steel reinforcement ratio ( p ) of about 2.4 percent to avoid flexural failure . The shear span - to - depth ratio ( a / d ) of the beams was about 2 and the volume fraction of the steel fibre was 0.5 percent . The beams were tested for different vertical stirrup nominal strength ( pfy ) , ranging from 0.15 to 4.44MPa , horizontal stirrup nominal strength ( Pfy ) , ranging from 0.4 to 3.63MPa and vertical and horizontal ( combination ) stirrup nominal strength ( pfy ) , ranging from 2.57 to 8.07MPa in addition to one beam without stirrups . Test results indicate that horizontal stirrups has little influence on the magnitude of the failure load . The test results of this investigation as well as those available in the literature ( 244 high and normal strength concrete deep beams with stirrups ) were compared with predictions based on the ( ACI , BS , Canadian and New Zealand Codes ) and works of other investigators ( Zustty , Siao and Sarsam ) and a Proposed Equation . The ACI , BS and Saio Equations are simultaneously conservative with relatively low COV values . The Proposed Equation has the lowest standard deviation , COV and conservative predictions . |
|---|---|
| ISSN: | 1681-6900 2412-0758 |