Behaviour of Composite Beams Made Using High Strength Steel

Journal article


Shamass, R and Cashell, KA (2017). Behaviour of Composite Beams Made Using High Strength Steel. Structures. 12, pp. 88-101.
AuthorsShamass, R and Cashell, KA
Abstract

High strength steel (HSS), defined as material with a yield strength of between 460 and 700 N/mm2, is becoming increasingly popular in appropriate construction projects owing mainly to its excellent strength to weight ratio. The current paper is concerned with the use of high strength steels in steel-concrete composite beams, which is a relatively new application. In order to investigate the behaviour of these members, a finite element numerical model is developed and validated using available test data. The model represents composite beams made from HSS acting together with either solid or profiled concrete slabs. It accounts for the geometrical and material nonlinearity as well as the nonlinearity caused by the shear connectors. An extensive parametric study is conducted in order to assess the influence of the most salient parameters such as material properties, shear connection, distribution of shear connectors and beam geometry on the response, in terms of the bending capacity, stiffness, slip distribution and failure mode. The numerical results are compared with current design provisions and new reduction factors are proposed in order to obtain safe and economical design solutions.

KeywordsHigh strength steel; Composite beams; Numerical modelling; Profiled slabs; Eurocode 4
Year2017
JournalStructures
Journal citation12, pp. 88-101
PublisherLondon South Bank University
Digital Object Identifier (DOI)doi:10.1016/j.istruc.2017.08.005
Publication dates
Print24 Aug 2017
Publication process dates
Deposited31 Aug 2017
Accepted20 Aug 2017
Accepted author manuscript
License
CC BY-NC-ND 4.0
Permalink -

https://openresearch.lsbu.ac.uk/item/86y25

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