Ultimate load and deflection behaviour of cellular beams.
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Date
2001
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Abstract
Cellular beams were developed in 1987 and are an adaptation of castellated beams
having many of the same advantages and disadvantages. There are no published results
of tests on cellular beams and there is only one recognised method of analysis and
design.
Full scale destructive tests were carried out for this investigation on eight cellular
beams. Beams loaded at midspan and at the third points were tested. Failure load,
failure mode and deflections were obtained for each beam.
The existing analysis method as well as three new methods for both ultimate load
behaviour and deflections were checked against the experimental results. The existing
method of analysis was found to be over-conservative in predicting failure loads and
inaccurate in predicting deflections. The analysis method which best predicted the
failure loads and modes was the design chart which was developed for this
investigation. The theoretical method which best predicted the deflection was the
Vierendeel method which was also developed for this investigation.
Description
Thesis (M.Sc.Eng.)-University of Natal, Durban, 2001.
Keywords
Structural engineering., Girders., Theses--Civil engineering.