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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.)

Buckling and post-buckling analyses of composite cellular beams

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Ferreira, Felipe Piana Vendramell [1] ; Tsavdaridis, Konstantinos Daniel [2] ; Martins, Carlos Humberto [3] ; Nardin, Silvana De [1]
Total Authors: 4
[1] Univ Fed Sao Carlos, Dept Civil Engn, Km 235, Sao Carlos, SP - Brazil
[2] Univ Leeds, Sch Civil Engn, Fac Engn & Phys Sci, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire - England
[3] Univ Estadual Maringa, Dept Civil Engn, Av Colombo 5790, Maringa, Parana - Brazil
Total Affiliations: 3
Document type: Journal article
Source: COMPOSITE STRUCTURES; v. 262, APR 15 2021.
Web of Science Citations: 1

This paper aims to investigate the buckling and post-buckling analyses of composite cellular beams. For this, the numerical model is calibrated by experimental tests via post-buckling analysis. A parametric study is developed, considering six cross sections. For each section, the opening diameter and web post length are varied. Regarding the buckling analyses for the symmetrical sections, it was concluded that the end post is an important parameter in the strength of composite cellular beams that presents high web slenderness. The smaller the opening diameter, the greater the critical global shear. The variation in the height of the cellular beam had a little influence on larger diameters and web posts widths. Considering asymmetric sections, it was verified that the web post buckling did not happen for the first buckling mode. In this scenario, local web buckling of the upper tee was observed. With the height variation, there was an increase in the global shear. This is due to the fact that with the increase in height, the buckling mode was changed to the WPB, instead of local web buckling. Finally, there was a conservatism in the SCI P355 calculation recommendations, a factor that needs to be revised. (AU)

FAPESP's process: 18/22803-1 - Behavior of composite cellular beams formed by double-symmetrical steel i-profiles and precast concrete hollow-core slabs
Grantee:Felipe Piana Vendramell Ferreira
Support Opportunities: Scholarships in Brazil - Doctorate