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Recent developments in composite connections
Author(s) -
Demonceau JeanFrançois,
Jaspart JeanPierre,
Klinkhammer Ralf,
Oerder Ralf,
Weynand Klaus,
Labory Françoise,
Cajot LouisGuy
Publication year - 2008
Publication title -
steel construction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.443
H-Index - 8
eISSN - 1867-0539
pISSN - 1867-0520
DOI - 10.1002/stco.200890012
Subject(s) - structural engineering , eurocode , bending moment , composite number , stiffness , bending , bending stiffness , ductility (earth science) , beam (structure) , shear (geology) , engineering , materials science , composite material , creep
Eurocode 4 [1] suggests design rules for the evaluation of the mechanical properties of steel‐concrete beam‐to‐column composite joints (rotational stiffness, resistance and ductility). These rules cover situations where the joints are subjected to moments and shear forces, but in hogging regions only (negative bending moments). Recently, researches have been conducted on the behaviour of composite joints (Fig. 1) subjected to positive bending moments (called “sagging moments” in the following) and combined bending moments and axial loads; for instance, these loading situations may appear in composite sway frames under conventional loading and exceptional actions (impact, explosion …) leading to the loss of a structural column [2]. In the present paper, the Eurocode 4 design rules are extended to joints in sagging regions and to joints subjected to combined bending moments and axial loads and the proposed methods are validated through comparisons with experimental test results. An easy‐to‐use and freely available software for the design of composite joints according to the Eurocode 4 principles is also described.