MODIFICATION OF THE ACI RECTANGULAR STRESS BLACK FOR HIGH-STRENGTH CONCRETE

Authors
IBRAHIM HHH MACGREGOR JG
Citation
Hhh. Ibrahim et Jg. Macgregor, MODIFICATION OF THE ACI RECTANGULAR STRESS BLACK FOR HIGH-STRENGTH CONCRETE, ACI structural journal, 94(1), 1997, pp. 40-48
Citations number
27
Categorie Soggetti
Construcion & Building Technology","Material Science
Journal title
ACI structural journal → ACNP
ISSN journal
08893241
Volume
94
Issue
1
Year of publication
1997
Pages
40 - 48
Database
ISI
SICI code
0889-3241(1997)94:1<40:MOTARS>2.0.ZU;2-U
Abstract
Most concrete codes do not explicitly cover concrete with strengths ab ove 50-60 MPa (7000 to 9000 psi). Compression stress blocks from three current codes that do allow design for high-strength concrete (HCS) s ections are presented. Comparisons of test data from the literature to strengths calculated using the current ACI rectangular stress block i ndicate it is not conservative for high strength concrete column secti ons failing in compression. New equations for the parameters that defi ne the ACI rectangular stress block are suggested and compared to test s.