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Incorporation of the size effect and other factors in strength design of concrete fastenings, in the context of the CEB Design Guide



Title: Incorporation of the size effect and other factors in strength design of concrete fastenings, in the context of the CEB Design Guide
Author(s): V.I. Yagust, D.Z. Yankelevsky
Paper category : conference
Book title: International Symposium on Connections between Steel and Concrete
Editor(s): R. Eligehausen
Print-ISBN: 2-912143-25-X
e-ISBN: 2351580346
Publisher: RILEM Publications SARL
Publication year: 2001
Pages: 300 - 309
Total Pages: 10
Nb references: 22
Language: English


Abstract: The paper shows that the method adopted in the CEB Design Guide (hereinafter "DG") [1] for strength design of fastening in concrete - overlooks a number of important factors.
In strength design for cone failure or local blow-out failure of the concrete, in distinction to DG allowance should be made for the size effect which - as know - determines the transition from the pseudoplastic to the brittle mode with increase of the height of the failure cone. The errors resulting from this omission are estimated.
Allowance is also obligatory for the critical stress intensity factor K1c , which should replace the square root of concrete compressive strength resorted to in DG. It is shown that use of the latter for different concretes also makes for errors.
On the basis of experimental data, formulas incorporating the two factors were obtained for different element geometries - including the case (not discussed in DG) of a flat element loaded in its plane of symmetry.
The above circumstances should be taken into consideration in revising the Guide.


Online publication: 2009-12-31
Publication type : full_text
Public price (Euros): 0.00