SHEAR RESISTANCE OF MRPC LIGHTWEIGHT CONCRETE BEAMS WITHOUT STIRRUPS

• Main Authors: Wissam Kadhim AlSaraj, Layth Abedalbari AlJaberi, Hayam Yousuf Alhamdani
• Format: Article
• Language: Arabic
• Published: Mustansiriyah University/College of Engineering 2019-11-01
• Series: Journal of Engineering and Sustainable Development
• Subjects: shear capacity; reactive powder concrete; lightweight concrete; rectangular beams; diagonal cracking load; ultimate shear load
• Online Access: http://www.jeasd.org/images/issue_5/1.pdf
• ISSN: 2520-0917; 2520-0925

Shear behavior of (9) modified reactive powder lightweight concrete beams (MRPLWC) beams without web reinforcement under two point loading system, are studied. A number of variables are used to show their effects on the diagonal cracking load and ultimate shear load. Those variables are: volume fraction of fiber (Vf), ratio of longitudinal reinforcement (ρ) and the ratio of the shear span to the effective depth (a/d). The test results show that the shear strength increased by increasing the volume fraction and the ratio of longitudinal reinforcement, while a reduction in shear capacity is noticed by increasing the ratio of shear span to effective depth (a/d).