A CONCRETE CREEP, SHRINKAGE, AND CRACKING LAW FOR FRAME STRUCTURES

A MATHEMATICAL MODEL IS DEVELOPED TO EMULATE THE STRAIN- STRESS AND FRACTURE BEHAVIOR OF CONCRETE IN A PLANAR STRUCTURAL FRAME. THE STRAIN-STRESS AND FRACTURE LAW IS FORMULATED TO ACCOUNT FOR CREEP, SHRINKAGE, AND CRACKING IN THE CONCRETE. A LINEAR RELATION IN INTEGRAL EQUATION FORM IS USED TO RELATE STRESS TO CREEP STRAIN. A STEP-FORWARD INTEGRATION TECHNIQUE IS DEVISED TO EVALUATE THE INTEGRAL EQUATION. THREE EXAMPLES ARE STUDIED TO DEMONSTRATE THE ACCURACY OF THE INTEGRATION METHOD. AN ADDITIONAL EXAMPLE IS PRESENTED TO SHOW THE NEED FOR A LAW WHICH ACCOUNTS FOR CREEP, SHRINKAGE, AND CRACKING IN THE CONCRETE. /ACIJP/

• Supplemental Notes:
  • Vol 66, No 10, PP 847-848
• Authors:
  • SELNA, L G
• Publication Date: 1969-10

Media Info

• Serial:
  • Am Concrete Inst Journal & Proceedings

Subject/Index Terms

• TRT Terms: Concrete; Concrete structures; Cracking; Creep; Deformation curve; Framed structures; Integrated systems; Mathematical models; Shrinkage
• Uncontrolled Terms: Concrete cracking; Integration
• Old TRIS Terms: Concrete creep
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213447
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 9 1970 12:00AM