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Performance evaluation of HSC beams with low flexural reinforcement
Author
Source
Housing and Building National Research Center Journal
Issue
Vol. 9, Issue 1 (30 Apr. 2013), pp.49-59, 11 p.
Publisher
Housing and Building National Research Center
Publication Date
2013-04-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Topics
Abstract EN
The main objective of the current research is to establish experimental data for minimum flexural reinforcement, qmin, of high strength concrete (HSC) rectangular beams.
Nine full-scale singly reinforced beams with flexural reinforcement ratios varying from 50% to 100% of the minimum limit specified by the ACI 363R-35were tested in flexure.
Concrete compressive strengths of 52, 73 and 96.5 MPa were used.
The test results including crack patterns, deflections and strains in the tensile flexural steel bars show that a 25% reduction of the ACI 363R-35 limit for the qmin would result in a satisfactory flexural beam behavior with a reserve flexural parameter (Py,/Pcr)P 1.29 and a displacement ductility index kD > 5 for all concrete grades which may lead to good savings in the amount of the flexural reinforcement.
Also, it was noted that the displacement ductility index kD increased as the concrete compressive strength increased for the same ratio (q/qmin) up to 75 MPa and then decreases as fcu increases.
For the same concrete compressive strength with low values of flexural reinforcement ratio, q, the displacement ductility index kD increased as q increased.
The experimental results of this study were compared with the limits specified by available codes and researches
American Psychological Association (APA)
al-Raqib, T. M.. 2013. Performance evaluation of HSC beams with low flexural reinforcement. Housing and Building National Research Center Journal،Vol. 9, no. 1, pp.49-59.
https://search.emarefa.net/detail/BIM-374856
Modern Language Association (MLA)
al-Raqib, T. M.. Performance evaluation of HSC beams with low flexural reinforcement. Housing and Building National Research Center Journal Vol. 9, no. 1 (2013), pp.49-59.
https://search.emarefa.net/detail/BIM-374856
American Medical Association (AMA)
al-Raqib, T. M.. Performance evaluation of HSC beams with low flexural reinforcement. Housing and Building National Research Center Journal. 2013. Vol. 9, no. 1, pp.49-59.
https://search.emarefa.net/detail/BIM-374856
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 58-59
Record ID
BIM-374856