CAN PLASTIC MODELS REPRESENT THE BUCKLING BEHAVIOR OF REINFORCED CONCRETE SHELLS?

A PREVIOUS STUDY OF THE BUCKLING OF A CYLINDRICAL SHELL ROOF IS NOTED WHEREIN PLASTIC MODELS DID NOT REPRODUCE WELL THE BUCKLING BEHAVIOR OF REINFORCED MORTAR SHELLS. IT WAS SHOWN FOR THIS CASE THAT THE BUCKLING LOAD OF THE REINFORCED MORTAR SHELLS WAS SIGNIFICANTLY INFLUENCED BY CRACKING DUE TO TRANSVERSE BENDING MOMENTS. AS A CONSEQUENCE THE PLASTIC MODELS, WHICH EXHIBITED ELASTIC BEHAVIOR, COULD NOT SIMULATE THE REINFORCED MORTAR MODELS. IN THIS PAPER THE RESULTS OF TESTS ON FOUR SPHERICAL DOMES, TWO MADE OF PLASTIC AND TWO OF REINFORCED MORTAR ARE PRESENTED. THE STATE OF STRESS PRIOR TO BUCKLING IN THE SPHERICAL SHELL CASE DOES NOT LEAD TO SIGNIFICANT CRACKING AS IN THE CYLINDRICAL SHELL STUDY. AS A CONSEQUENCE THE PLASTIC DOMES, WITHIN THE LIMITS TO WHICH THE TANGENT MODULUS OF ELASTICITY OF THE MORTAR COULD BE DEDUCED, DID QUALITATIVELY AND QUANTITATIVELY SIMULATE THE REINFORCED MORTAR DOMES. /ACI/

• Supplemental Notes:
  • No 24, TitlE NO SP 24-11
• Authors:
  • Litle, W A
  • Forcier, F J
  • Griggs, P H
• Publication Date: 1970

Media Info

• Serial:
  • Am Concrete Inst Special Pub

Subject/Index Terms

• TRT Terms: Bending moments; Buckling; Fracture mechanics; Modulus of elasticity; Mortar; Plastics; Reinforced concrete; Shells (Structural forms); Simulation; Structural models
• Uncontrolled Terms: Model tests
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209286
• Record Type: Publication
• Source Agency: Am Concrete Inst Journal & Proceedings
• Files: TRIS
• Created Date: Oct 5 1970 12:00AM