City Research Online

Abstract

This paper investigates the end-post behaviour of cellular beams focusing on the failure mechanisms subject to shear adjacent to the connections. Three cellular beams were tested to failure in a companion paper and their behaviours were modelled and validated herein using Abaqus. The cellular beams were connected to the columns through a bolted end-plate at one end and a bolted fin-plate at the other end. Finite element (FE) analyses were carried out for end-posts with and without notches, and web openings with half infill plates for cases where the minimum end-post width requirements were not satisfied. It was found that the FE results were in good agreement with the test results while both gave significantly higher failure loads than the design predictions provided by BS EN 1993-1-13. A parametric study was carried out on each connection side and in total 160 end-post models were examined. It was concluded that the connection type not only affected the end-post shear resistance but also influenced the failure mode. It was shown that using a half infill plate at the first opening can greatly increase the end-post’s shear resistance.

Publication Type:	Article
Additional Information:	© 2025. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher Keywords:	Cellular beams; end-post; FE validation; local buckling; Vierendeel mechanism; notches and infill plates
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Departments:	School of Science & Technology School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

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