Assessment of web post buckling resistance in steel-concrete composite cellular beams

Author(s)

Vendramell Ferreira, Felipe Piana ^[1] ; Martins, Carlos Humberto ^[2] ; De Nardin, Silvana ^[1]

Affiliation

^[1] Univ Fed Sao Carlos, Km 235, Sao Carlos, SP - Brazil

^[2] Univ Estadual Maringa, Av Colombo 5790, Maringa, Parana - Brazil

• Document type: Journal article
• Source: THIN-WALLED STRUCTURES; v. 158, JAN 2021.
• Web of Science Citations: 0

Abstract

This paper aims to investigate the ultimate strength of steel-concrete composite cellular beams, considering the web post buckling. The numerical model is calibrated via experimental tests consolidated in the literature by geometrical non-linear analyses. Asymmetric and symmetric sections are investigated. For each section, the ratio of the web-post width to opening diameter, and opening diameter to the depth of the parent section are varied. The results are compared with analytical procedures. In the models, web post buckling and the Vierendeel mechanism were observed. The end post width affected the ultimate behavior of the concrete slab. The calculation procedures proved to be conservative. (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