eprintid: 1976
rev_number: 6
eprint_status: archive
userid: 56
dir: disk0/00/00/19/76
datestamp: 2013-11-29 13:33:31
lastmod: 2014-10-09 09:20:25
status_changed: 2013-11-29 13:33:31
type: article
metadata_visibility: show
creators_name: Carpinteri, Alberto
creators_name: Corrado, Mauro
creators_name: Mancini, Giuseppe
creators_name: Paggi, Marco
creators_id: 
creators_id: 
creators_id: 
creators_id: marco.paggi@imtlucca.it
title: Size-scale effects on plastic rotational capacity of reinforced concrete beams
ispublished: pub
subjects: TJ
divisions: CSA
full_text_status: none
keywords: code provisions; cohesive crack model; ductility; finite element method; nonlinear analysis; plastic rotation; reinforced concrete; size effect
abstract: A complete numerical algorithm that assumes a strain localization in concrete, both in tension and compression, is proposed for modeling cracking and crushing growths during the loading process of reinforced concrete beams in bending. With this algorithm based on nonlinear fracture mechanics models, it is possible to investigate the effects of the main mechanical and geometrical parameters on the rotational capacity with particular regard to the reinforcement percentage and the element size. A comparison with experimental results demonstrates the effectiveness of the proposed approach for a wide range of reinforcement percentages and beam depths. The obtained results show that the prescriptions concerning the admissible plastic rotations provided by the existing design formulas are not conservative in the case of large structural sizes. To overcome such a drawback, a new design diagram is proposed for practical purposes.
date: 2009
date_type: published
publication: Structural Journal
volume: 106
number: 6
publisher: American Concrete Institute
pagerange: 887-896
refereed: TRUE
issn: 0889-3241
official_url: http://www.concrete.org/PUBS/JOURNALS/AbstractDetails.asp?SearchID=882228&date=anytime&phrasewords=Size-scale+effects&aftermonth=1&afterday=1&afteryear=2009&beforemonth=1&beforeday=1&beforeyear=2013&searchmonth=1&searchday=1&searchyear=2013&ID=51663190
citation:   Carpinteri, Alberto and Corrado, Mauro and Mancini, Giuseppe and Paggi, Marco  Size-scale effects on plastic rotational capacity of reinforced concrete beams.  Structural Journal, 106 (6).  pp. 887-896.  ISSN 0889-3241      (2009)