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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Structural behavior of partially encased composite columns under axial loads

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Author(s):
Pereira, Margot F. [1] ; De Nardin, Silvana [2] ; El Debs, Ana L. H. C. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Struct Engn, Ave Trabalhador Saocarlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Civil Engn, Rodovia Washington Luis, Km 235 SP 310, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: STEEL AND COMPOSITE STRUCTURES; v. 20, n. 6, p. 1305-1322, APR 30 2016.
Web of Science Citations: 12
Abstract

This paper presents the results of experimental and numerical model analyses on partially encased composite columns under concentric loads. The main objective of this study is to evaluate the influence of replacing the conventional longitudinal and transverse steel bars by welded wire mesh on the structural behavior of these members under concentric loads. To achieve these goals experimental tests on four specimens of partially encased composite columns submitted to axial loading were performed and the results were promising in terms of replacing the traditional reinforcement by steel meshes. In addition, a numerical FE model was developed using the software DIANA (R) with FX+. The experimental results were used to validate the numerical model. Satisfactory agreement between experimental and numerical results was observed in both capacity and deformability of the composite columns. Despite of the simplifying assumptions of perfect bond between steel and concrete, the numerical model adequately represented the columns behavior. A finite element parametric study was performed and parameters including thickness of the steel profile and the concrete and steel strengths were evaluated. The parametrical study results found no significant changes in the partially encased columns behavior due to variations of the steel profile thickness or yield strength. However, significant changes in the post peak behavior were observed when using high strength concrete and these results suggest a change in the failure mode. (AU)

FAPESP's process: 14/12694-0 - Structural behavior of partially encased composite columns subjected to flexural loading
Grantee:Margot Fabiana Pereira Milani
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/07885-5 - Experimental and numerical analysis of steel-concrete composite columns
Grantee:Margot Fabiana Pereira Milani
Support Opportunities: Scholarships in Brazil - Master