Design of reinforced and unreinforced timber beams under uncertainties

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Uncertainty in the strength of natural material, such as timber, is considerably higher than man-made construction materials which are produced through controlled and precise manufacturing processes. Adopting a classical deterministic design approach, designer usually employs high factor of safety to incorporate this material strength uncertainty in design; an approach that can lead to overdesigned structures with unpredictable performance. This paper, firstly, presents the evaluation of the performance of classical design method against nondeterministic design technique. The nondeterministic design is carried out with Monte Carlo technique in order to estimate failure rates corresponding to the adopted factors of safety utilised in the classical design. It is shown that increase in factor of safety does not necessarily yield a reliable design. Secondly, two methods of reinforcement, namely, Fibre Reinforced Polymers (FRP) and Steel Reinforced Polymers (SRP), are investigated in this study. The uncertainty in the strength of reinforced timber is also quantified and modelled. It is shown that reinforcement of timber has a two-fold effect on its strength, namely, enhanced strength and reduced uncertainties, directly leading to reduction in the overall cost of the structure.
Original languageEnglish
Title of host publicationThe Twelfth International Conference on Computational Structures Technology
Place of Publication Naples, Italy
Publication statusPublished - 2 Sep 2014
EventThe Twelfth International Conference on Computational Structures Technology - Naples, Italy
Duration: 2 Sep 20145 Sep 2014
http://www.civil-comp.com/conf/cstect2014/cst2014.htm

Conference

ConferenceThe Twelfth International Conference on Computational Structures Technology
Abbreviated titleCST2014
CountryItaly
CityNaples
Period2/09/145/09/14
Internet address

Fingerprint

Timber
Polymers
Fiber reinforced materials
Uncertainty
Reinforcement
Steel
Costs

Cite this

Corradi, M., Maheri, A., & Osofero, A. I. (2014). Design of reinforced and unreinforced timber beams under uncertainties. In The Twelfth International Conference on Computational Structures Technology Naples, Italy.

Design of reinforced and unreinforced timber beams under uncertainties. / Corradi, Marco ; Maheri, Alireza; Osofero, Adelaja Israel.

The Twelfth International Conference on Computational Structures Technology. Naples, Italy, 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Corradi, M, Maheri, A & Osofero, AI 2014, Design of reinforced and unreinforced timber beams under uncertainties. in The Twelfth International Conference on Computational Structures Technology. Naples, Italy, The Twelfth International Conference on Computational Structures Technology, Naples, Italy, 2/09/14.
Corradi M, Maheri A, Osofero AI. Design of reinforced and unreinforced timber beams under uncertainties. In The Twelfth International Conference on Computational Structures Technology. Naples, Italy. 2014
Corradi, Marco ; Maheri, Alireza ; Osofero, Adelaja Israel. / Design of reinforced and unreinforced timber beams under uncertainties. The Twelfth International Conference on Computational Structures Technology. Naples, Italy, 2014.
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