Stress-strain curves for steel fiber-reinforced concrete in compression

Materia

Machado, Daiane Vitória Ramos¹  Danin, Alice Ribeiro¹  Araújo, Daniel de Lima¹  Borges, Vanessa Elizabeth dos Santos¹  Rodrigues, Paulo Fernando²  El Debs, Mounir Khalil³  Oliveira Júnior, Luiz Álvaro de³ 

[1]Federal University of Goiás

[2]Furnas Centrais Elétricas S. A.

[3]University of São Paulo

关键词: Steel fiber-reinforced concrete;    stress-strain curves;    compressive behavior.;   

DOI  :  10.1590/S1517-70762010000200025

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

This paper presents a study on the compressive behavior of steel fiber-reinforced concrete. In this study, an analytical model for stress-strain curve for steel fiber-reinforced concrete is derived for concretes with strengths of 40 MPa and 60 MPa at the age of 28 days. Those concretes were reinforced with steel fibers with hooked ends 35 mm long and with aspect ratio of 65. The analytical model was compared with some experimental stress-strain curves and with some models reported in technical literature. Also, the accuracy of the proposed stress-strain curve was evaluated by comparison of the area under stress-strain curve. The results showed good agreement between analytical and experimental data and the benefits of the using of fibers in the compressive behavior of concrete.

【 授权许可】

CC BY