CREEP DEFLECTION OF REINFORCED CONCRETE BEAMS

A PROCEDURE IS OUTLINED FOR PREDICTING THE TIME-DEPENDENT DEFLECTION OF STATICALLY DETERMINATE, SINGLY REINFORCED CONCRETE BEAMS SUBJECTED EITHER TO LONG-TERM SUBSTAINED LOAD OR TO REPEATED CYCLES OF SUSTAINED LOAD. CREEP BEHAVIOR OF PLAIN CONCRETE IS REPRESENTED BY MEANS OF A LINEAR VISCOELASTIC MODE. NUMERICAL SOLUTIONS ARE OBTAINED FOR THE RESULTING SYSTEM OF EQUILIBRUIM EQUATIONS; GRAPHS GIVING PEAK VALUES OF DEFLECTION, NEUTRAL AXIS LOCATION, AND CONCRETE AND STEEL STRESSES ARE PRESENTED. THE TIME HISTORY OF EACH VARIABLE IS FITTED WITH AN EXPONENTIAL, AND NOMOGRAPHS ARE GIVEN TO DEFINE THE VALUES OF THE EXPONENTS. A PROCEDURE IS PRESENTED FOR USING THIS DATA TO COMPUTE THE RESPONSE OF BEAMS SUBJECTED TO CYCLES OF SUSTAINED LOAD. /AUTHOR/

• Supplemental Notes:
  • Ol 96, No ST12, PROC PAPER 7768, PP 2625-2638, 8 FIG,
• Authors:
  • Miller, C A
  • Guralnick, S A
• Publication Date: 1970-12

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Concrete; Creep; Deflection; Loads; Numerical analysis; Reinforced concrete; Statically determinate frames; Steel; Stresses; Structural engineering; Time dependence
• Uncontrolled Terms: Concrete beams; Reinforced concrete beams
• Old TRIS Terms: Statically determinate structure; Time dependent functions
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209373
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 1971 12:00AM