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86. Bending design of arbitrarily shaped steel fibre reinforced concrete sections using optimisation methods



Title: 86. Bending design of arbitrarily shaped steel fibre reinforced concrete sections using optimisation methods
Author(s): P. Mark, M. Strack
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 965 - 974
Total Pages: 10
Nb references: 12
Language: English


Abstract: The governing equations of the bending design of arbitrarily shaped steel fibre reinforced concrete sections are formulated in the form of an optimisation problem in order to calculate the minimum required bar reinforcements at given positions in the sections. Stress-strain-relations derived from the (sigma)-(epsilon)-design method model load-bearing effects of steel fibres. The optimisation problem is numerically solved using a Generalized Reduced Gradient algorithm and numerical integrations to determine the sectional forces of the resistance. The method is applied to the designs of slabs and girders. Therefore, stress-strain-relations recommended by the RILEM TC 162-TDF and an alternative, simplified approach are assumed.


Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00