Interface Slip Behavior of Composite Prestressed Concrete Beams

Abstract

The report deals with the interface shear strength and slip behavior of post tensioned concrete composite beams. The interface between the two composite elements was positioned on teh centroidal axis of the composite cross section. Eleven simply supported beams with 8-foot spans were statically loaded to failure. The effect of interface roughness and web reinforcement on relative slip between the composite elements was studied. Web reinforcement crossing the interface and roughness of interface decreased the rate of relative slip and allowed increased magnitudes of slip before failure. Interface roughness and web steel improved the integrity, strength, and energy-absorption capacity of the composite beams. The ultimate interface shear resistances determined from the tests were higher than those recommended by the ACI code.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1971
Accession Number
AD0722667

Entities

People

  • G. E. Warren
  • S. B. Nosseir

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Compressive Strength
  • Concrete
  • Construction
  • Diameters
  • Engineering
  • Failure Mode And Effect Analysis
  • Load Cells
  • Materials Processing
  • Mechanical Working
  • Modulus Of Elasticity
  • Payload
  • Prestressed Concrete
  • Reinforced Concrete
  • Shear Strength
  • Strain Gages
  • Test Equipment
  • Yield Strength

Readers

  • Database Systems and Applications
  • Pavement Materials Engineering.
  • Structural Dynamics.