Innovative all composite multi-pultrusion truss systems: FE modelling and behavioural issues

Omar, T. and Van Erp, G. and Aravinthan, T. and Key, P. (2007) Innovative all composite multi-pultrusion truss systems: FE modelling and behavioural issues. In: 1st Asia-Pacific Conference on FRP in Structures (APFIS 2007), 12-14 Dec 2007, Hong Kong, China.

Abstract

Trusses are successful structural forms that have been utilised, at extended scale, since the nineteenth century. Fibre composite materials are relatively new to civil engineering applications. The increased interest in using composites in civil applications can be attributed to advantages when compared to other construction materials that offset their higher costs. Using conventional approaches for truss systems in composite materials can undermine their efficiency. This is mainly due to the stress concentration at connections which usually governs the truss design. The all-composite multi-pultrusion truss (MPT) concept was developed in the Centre of Excellence of Engineered Fibre Composites; University of Southern Queensland, Australia. It combines the usage of pultrusions for the chord and vertical members with diaphragm-type bracing. Preliminary tests of few truss alternatives show good structural performance which includes high load carrying capacity, semi-ductile behaviour and ease of manufacturing. This paper presents the main behavioural issues of this innovative structural form based on the test results and the FE analysis that well predicted the buckling behaviour of the web.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 17 Aug 2012 00:41
Last Modified: 03 Jul 2013 01:16
Uncontrolled Keywords: FRP; truss; pultrusion
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/21654

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