Title:
Response of Reinforced Concrete Shell Elements Subjected to In-Plane and Out-of-Plane Shear
Author(s):
Giorgio T. Proestos, Evan C. Bentz, and Michael P. Collins
Publication:
Structural Journal
Volume:
121
Issue:
2
Appears on pages(s):
165-180
Keywords:
axial stress; experiments; interaction diagrams; moments; shear; shells; three-dimensional; torsion
DOI:
10.14359/51740252
Date:
3/1/2024
Abstract:
This paper investigates the response of reinforced concrete shell
elements subjected to all eight stress resultants (in-plane shear, two
out-of-plane shears, torsion, two axial loads, and two moments).
Twelve new experiments subjected to different combinations of
in-plane and out-of-plane loads are presented. The experiments
examine the influence of varying quantities of transverse shear
reinforcement and concrete strengths. The paper also presents a
new nonlinear, high-powered, macro finite element model called
Shell II. The Shell II method is a three-layered model based on
the equations of the Modified Compression Field Theory and is
capable of predicting the full three-dimensional load-deformation
response of shell elements subjected to combined loads. Shell II
is also used to examine the experimental results in the context of
in-plane versus out-of-plane shear-stress interaction diagrams. The
results highlight the importance of considering combined loading
in predicting the response of shells in three dimensions.