Tarek Sayed Mustafa Mohamed
Professor
Experimental, Numerical, and Analytical Investigation of the Reinforced Concrete Hidden and Wide Beams
International Journal of Concrete Structures and Materials • 2024
Publication Information
Authors
Ahmed A. Mahmoud, Belal K. El Gani, Tarek S. Mustafa, and Ahmed N. M. Khater
Keywords
Hidden and wide beams, Flexural behavior, Experimental study, Analytical study, Numerical analysis,
ANSYS program
Journal
International Journal of Concrete Structures and Materials
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
18-73
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
This research presents an experimental, analytical, and numerical study to predict the fexural behavior of reinforced
concrete hidden and wide beams embedded in slabs. The experimentally studied parameters of testing eight
specimens include beam depth, beam width, and beam eccentricity from the column. The obtained test results
were compared to the predictions of fnite element analysis using the ANSYS program. A numerical parametric study
was conducted by the ANSYS program to explore other parameters afecting the ultimate fexural strength of beams.
The studied parameters encompass concrete compressive strength, steel reinforcement strength, bottom reinforcement ratio, top-to-bottom reinforcement ratio, and web reinforcement ratio. The results revealed that an increase
in beam depth led to higher ultimate load and secant stifness, along with a decrease in defection. The increase
in beam width signifcantly afected beam depth, resulting in increased ultimate load and secant stifness and a slight
decrease in defection. The increase in beam eccentricity from the column resulted in a decrease in ultimate load
and secant stifness while increasing the defection. Comparisons between experimental and numerical results were
made against calculations based on the ECP 203-2017 and ACI 318-19 codes, and the comparison yielded satisfactory
results
concrete hidden and wide beams embedded in slabs. The experimentally studied parameters of testing eight
specimens include beam depth, beam width, and beam eccentricity from the column. The obtained test results
were compared to the predictions of fnite element analysis using the ANSYS program. A numerical parametric study
was conducted by the ANSYS program to explore other parameters afecting the ultimate fexural strength of beams.
The studied parameters encompass concrete compressive strength, steel reinforcement strength, bottom reinforcement ratio, top-to-bottom reinforcement ratio, and web reinforcement ratio. The results revealed that an increase
in beam depth led to higher ultimate load and secant stifness, along with a decrease in defection. The increase
in beam width signifcantly afected beam depth, resulting in increased ultimate load and secant stifness and a slight
decrease in defection. The increase in beam eccentricity from the column resulted in a decrease in ultimate load
and secant stifness while increasing the defection. Comparisons between experimental and numerical results were
made against calculations based on the ECP 203-2017 and ACI 318-19 codes, and the comparison yielded satisfactory
results