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Faculty of Engineering
Document Details
Document Type
:
Article In Journal
Document Title
:
Service Load Deflections of High-Strength Fiber Reinforced Concrete Beams
انحرافات العوارض الخرسانية المسلحة ذات المقاومة العالية والمقواة بالألياف المعدنية بفعل أحمال التشغيل
Subject
:
Civil Engineering
Document Language
:
English
Abstract
:
Test results of eighteen beams of high-strength concrete of 85 MPa (12,300 psi) compressive strength are presented to study the influence of steel fibers and longitudinal tension and compression reinforcements on their immediate and long-term deflections. The results show that the addition of fibers in singly reinforced beams reduces immediate and long-term deflections. For beams with compression bars and fibers, the excessive amount of two reinforcements may have an unfavorable effect on the long-term deflections. The beams having the ACI Code’s minimum longitudinal tension reinforcement showed much higher time-dependent deflection to immediate deflection ratio, when compared with that of the beams having about 50 percent of the balanced tension reinforcement. The theoretical method presented in the paper for predicting deflections considers the effect of steel fibers on material and section properties. The computed values for the tested beams and those of a parametric study indicate that the influence of steel fibers in increasing the moment of inertia of cracked transformed sections is most pronounced in beams having small amount of longitudinal tension reinforcement.
ISSN
:
1319-1047
Journal Name
:
Engineering Sciences Journal
Volume
:
12
Issue Number
:
2
Publishing Year
:
1420 AH
2000 AD
Article Type
:
Article
Added Date
:
Thursday, February 4, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
سمير عبدالله عاشور
ASHOUR, SAMIR ABDULLAH
Investigator
Doctorate
Files
File Name
Type
Description
25085.pdf
pdf
Service Load Deflections of High-Strength Fiber Reinforced Concrete Beams
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