Nonlinear models for design of circular RC columns under ultimate and service states-Reference-Cited by-同舟云学术

Nonlinear models for design of circular RC columns under ultimate and service states

Published:2021 Issue: Volume: Page:
ISSN:
Container-title:IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure
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Author:

Barros Helena¹,Ferreira Carla¹,Figueiras Joaquim²,Pimentel Mário²

Affiliation:

1. Department of Civil Engineering, Faculty of Sciences and Technology University of Coimbra, Coimbra, Portugal / Institute for Systems Engineering and Computers at Coimbra (INESC Coimbra)

2. Department of Civil Engineering, Faculty of Engineering, University of Porto, Oporto, Portugal Institute of R&D in Structures and Construction

Abstract

<p>The present paper is dedicated to the ultimate and to the service design of circular reinforced concrete sections under axial load and bending moment, according to Eurocode 2 [1].</p><p>The objective of the present work is to develop design equations for circular reinforced concrete sections, solving the equilibrium equations by mathematic symbolic software. The concrete only supports compressive stresses and the steel can hold both tension and compression. The nonlinear equation of EC2 [1] is used for compressed concrete in the ultimate design. The steel is considered to have a linear elastic constitutive law up to the yield stress, followed by a plastic behaviour. The ultimate design condition is posed in terms of maximum strains for the most compressed concrete fibre or for the tensioned steel bar, permitting the definition of interaction abacuses, shown in the present paper.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference4 articles.

1. EN 1992-1-1; Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings. 2004.

2. Helena Barros, Joaquim Figueiras, Carla Ferreira e Mário Pimentel. Tabelas e ábacos de dimensionamento de secções de betão solicitadas à flexão e a esforços axiais segundo o Eurocódigo 2. FEUP Edições; 2020.

3. M.H.F.M. Barros, A. Barros, C. Ferreira. Closed form solution of optimal design of rectangular reinforced concrete sections. Engineering Computation. 2004; 21(7): 761-776.

4. Bonet, J. L. Barros, M. H. F. M. Romero, M. L. Comparative study of analytical and numerical algorithms for designing reinforced concrete sections under biaxial bending. Computers and Structures.2006; 84(31-32): 2184-2193.