Torsional Strength Prediction of RC Hybrid Deep T-Beam with an Opening using Softened Truss Model
Abstract: This paper presents
an analytical study to predict the torsional behavior of reinforced concrete
(RC) hybrid deep T-beam with opening and to compare to the experimental
results. The RC hybrid deep T-beam was cast with normal weight concrete web and
light weight concrete flanges. Based on the Softened Truss Model and Bredt’s
theory, a new equation was derived and proposed to show the relationship
between compression strut of light weight concrete and normal weight concrete.
Based on the experimental results of cracking angles and curvature equation of
light weight concrete and normal weight concrete, a new equation was also
proposed to show the relationship between strain diagram of light weight concrete
and normal weight concrete. The analytical results show that the prediction of
maximum torque capacity of the beams are close to the experimental results,
except the prediction of twist angle which are larger than the experimental
results.
Author: Lisantono, A., Besari,
M., Suhud, R.
Journal Code: jptsipilgg130009
