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 
Number Of Pages : 25 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سمير عبدالله عاشور SAMIR A. ASHOURResearcher  
خالد محمود محمود KHALID M. MAHMOODResearcher  
فيصل فؤاد وفاFAISAL F. WAFAResearcher  

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