Comparison between Eurocode 2, ACI 209R-92 and Gardner&Lockman Models in Creep Analysis of Composite Steel-Concrete Section-Reference-Cited by-同舟云学术

Comparison between Eurocode 2, ACI 209R-92 and Gardner&Lockman Models in Creep Analysis of Composite Steel-Concrete Section

Published:2014 Issue: Volume: Page:
ISSN:2221-3783
Container-title:IABSE Reports
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Author:

Partov Doncho,Kantchev Vesselin

Abstract

<p> The paper presents analysis of the stress-strain behaviour and deflections changes due to creep in statically determinate composite steel-concrete beam according to EUROCODE 2, ACI209R-92 and Gardner&Lockman models. The mathematical model involves the equation of equilibrium, compatibility and constitutive relationship, i.e. an elastic law for the steel part and an integral-type creep law of Boltzmann – Volterra for the concrete part considering the above mentioned models. On the basis of the theory of the viscoelastic body of Maslov-Arutyunian–Trost-Zerna-Bažant for determining the redistribution of stresses in beam section between concrete plate and steel beam with respect to time “t”, two independent Volterra integral equations of the second kind have been derived. Numerical method based on linear approximation of the singular kernel function in the integral equation is presented. Example with the model proposed is investigated.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference5 articles.

1. ACI 2092R-08, "Guide for Modelling and Calculating Shrinkage and Creep in Harden Concrete", May 2008, (under revision by ACI Committee 209).

2. PARTOV D., and KANTCHEV V., "Time-dependent analysis of composite steel-concrete beams using integral equation of Volterra, according EUROCODE-4", Engineering Mechanics, Vol. 16, No 5, 2009, pp. 367-392.

3. PARTOV D., and KANTCHEV V., "Level of creep sensitivity in composite steel-concrete beams, according to ACI 209R-92 model, comparison with EUROCODE-4(CEB MC90-99)", Engineering Mechanics, Vol. 18, No. 2, 2011, pp. 91-116.

4. PARTOV D., and KANTCHEV V., "Numerical analysis of composite steel-concrete section using integral equation of Volterra", Centr. Eur. J. Eng., Vol. 1, 2011, No.3, pp. 316-331.

5. Gardner and Lockman Model in Creep Analysis of Composite Steel-Concrete Sections;ACI Structural Journal