Title:
Nonlinear Finite Element Analysis of Planar Reinforced Concrete Members Subjected to Fires
Author(s):
Zhaohui Huang and Andrew Platten
Publication:
Structural Journal
Volume:
94
Issue:
3
Appears on pages(s):
272-281
Keywords:
finite element method; fire resistance; reinforced concrete;
secant modulus; stiffness; strains; stresses; structural analysis;
DOI:
10.14359/479
Date:
5/1/1997
Abstract:
A nonlinear finite element procedure for predicting the structural behavior of planar-reinforced concrete members subjected to fire is described. The proposed procedure is based on an iterative, secant stiffness formulation. The complex features of structural behavior in fire conditions, such as thermal expansion, shrinkage, creep, cracking, or crushing, and change of material properties with temperature are considered. The spalling of concrete is excluded in this model. Predictions from the model proposed are compared against experimental results by previous researchers.