Shear Resistance of Haunched and Non-Prismatic Reinforced Concrete Beams

Document Type : Original Article

Authors

1 Civil Engineering, Faculty of Engineering, Shebin Elkom, Menoufia, Egypt

2 Civil Engineering Department, Faculty of Engineering, Menoufia University, Egypt

3 M.Sc. Student at Civil Engineer, Faculty of Engineering, Menoufia University

Abstract

This research is focusing on investigating the influence of tapered and curvature angles on the shear strength of concrete beams. Specifically, the study examined the effect of varying angles in the lower chord and the impact of increasing stirrups on the shear behavior of beams. Seven concrete beams were designed for experimental investigation. One beam was a prismatic with the same cross section along the span, while four beams had different inclination angles of the beam soffit with variable cross section dimensions. The remaining two beams had different stirrup arrangements. All beams were tested under four-point loading and were designed to fail in shear. Additionally, a finite element analysis using ABAQUS 6.14 was conducted to compare the obtained results. The results of the experiments demonstrated a clear link between reducing tapered angles in haunched beams and the enhancement of shear capability. The beams with smaller tapered angles exhibited improved shear strength compared to those with larger angles. Similarly, the incorporation of additional stirrups resulted in an enhancement of the shear capability. The finite element analysis demonstrated a strong correlation in forecasting failure mechanisms with experimental specimens.

Keywords

ERJ. Engineering Research Journal
Volume 48, Issue 1
Issued on 1/1/2025 in 4 Parts: Part (1): Mechanical Engineering, Part (2): Civil Engineering, Part (3): Basic Engineering Sciences and Part (4): Architectural Engineering.
January 2025
Pages 63-77

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