CREEP AND SHRINKAGE OF CONCRETE AND THEIR INFLUENCE ON STRUCTURAL BEHAVIOR-A REVIEW OF METHODS OF ANALYSIS

A REVIEW IS MADE OF SIMPLE METHODS OF ANALYZING THE EFFECTS OF THE CREEP AND SHRINKAGE OF CONCRETE IN STRUCTURAL MEMBERS. THE CASES CONSIDERED INCLUDE PRESTRESSED AND REINFORCED CONCRETE, CRACKED AND UNCRACKED, UNDER MOMENT AND DIRECT LOAD. IT IS SHOWN THAT THE USE OF AN EFFECTIVE MODULUS GIVES ACCEPTABLE RESULTS FOR THE TIME- DEPENDENT CHANGES OF STRESS AND DEFORMATION SO LONG AS THE APPLIED LOADS DO NOT VARY VERY GREATLY. THE RATE OF CREEP METHOD IS OF WIDER APPLICABILITY BUT ITS USE NECESSITATES ADDITIONAL COMPUTATION. THE PROPORTION AND POSITION OF THE REINFORCEMENT, AND THE INITIAL DISTRIBUTION OF STRESS IN THE CONCRETE ARE SHOWN TO HAVE AN IMPORTANT INFLUENCE ON THE LONG-TERM DEFORMATIONS. THE EFFECTS OF SHRINKAGE CAN BE OF THE SAME ORDER OF MAGNITUDE AS THOSE OF APPLIED LOADS. THE LONG-TERM BEHAVIOR UNDER A NON-UNIFORM STATE OF TEMPERATURE IS ALSO DISCUSSED. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14665123
• Supplemental Notes:
  • Vol 48, No 7, PP 283-292
• Authors:
  • Illston, J M
  • England, L
• Publication Date: 1970-7

Media Info

• Serial:
  • Structural Engineer
  • Publisher: Institution of Structural Engineers
  • ISSN: 1466-5123

Subject/Index Terms

• TRT Terms: Analysis; Concrete; Concrete structures; Cracking; Creep; Deformation; Engineering moments; Load factor; Prestressed concrete; Reinforced concrete; Shrinkage; Stresses; Structural analysis; Structural mechanics; Temperature
• Uncontrolled Terms: Concrete cracking; Structural behavior
• Old TRIS Terms: Concrete creep; Moments; Stress conditions
• Subject Areas: Construction; Highways; Materials;

Filing Info

• Accession Number: 00213819
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 1971 12:00AM