Title:
Structural Analysis and Rehabilitation of Reinforced Concrete Shells
Author(s):
Claudio Borri, Andrea Chiarugi, and Paolo Foraboschi
Publication:
Structural Journal
Volume:
92
Issue:
2
Appears on pages(s):
139-148
Keywords:
buckling; finite element method; models; nonlinear programming; reinforced concrete; shells (structural forms); Structural Research
DOI:
10.14359/1142
Date:
3/1/1995
Abstract:
This paper presents a structural analysis process and rehabilitation approach for damaged, pneumatically formed reinforced concrete (RC) shells. The process was applied to a seriously damaged, large-span, slender shell. Special nonlinear finite element modeling was used with doubly curved and multilayer elements. Security conditions of the reference shell, including buckling collapse and damage time evolution, were analyzed; the shell exhibited unsafe behavior. The rehabilitation approach is explained. Predictions of the model were compared with experimental in situ tests. Good agreement between the predicted and observed values was obtained.