Title:
Analysis of Reinforced Concrete Shells for Transverse Shear and Torsion
Author(s):
Taira Yamamoto and Frank J. Vecchio
Publication:
Structural Journal
Volume:
98
Issue:
2
Appears on pages(s):
191-200
Keywords:
reinforced concrete; shear; tension; test.
DOI:
10.14359/10187
Date:
3/1/2001
Abstract:
Finite element formulations are presented for improved analysis of reinforced concrete shell structures critical in shear. The nonlinear methodology developed, based on the use of layered isoparametric finite elements, allows for explicit consideration of out-of-plane shear deformations. Cracked concrete is treated as an orthotropic nonlinear material in the context of smeared rotating cracks, and the tension softening model implemented uses a consistent average stress-strain approach based on fracture energy. The accuracy of the formulation is examined by investigating three different series of test specimens: simple beams, with and without shear reinforcement, subjected to transverse shear and flexure; hollow rectangular over- and under-reinforced beams subjected to torsion and flexure; and a scale model of an offshore structure subjected to hydrostatic pressure. Good agreement between predicted and observed response was found for all series of tests examined.