RECENT RESEARCH ON COMPOSITE BEAMS FOR BRIDGES AND BUILDINGS

COMPOSITE STEEL-CONCRETE BRIDGES HAVING CONTINUOUS STEEL BEAMS AND CONCRETE DECKS BUT DISCONTINUOUS SHEAR CONNECTION ARE COMMONLY USED IN THE U.S.A. FOR OVERPASS STRUCTURES. FULL-SEAL LABORATORY TESTS SHOWING PREMATURE CONNECTOR FAILURES DUE TO FATIGUE RESULTED IN RECENT MODIFICATIONS OF THE AASHO STANDARD SPECIFICATIONS FOR HIGHWAY BRIDGES. CURRENT RESEARCH IS INVESTIGATING BOTH CONTINUOUS AND DISCONTINUOUS SHEAR CONNECTION WITH RESPECT TO SATISFACTORY BEHAVIOUR FOR STATIC AND FATIGUE LOADING. COMPOSITE STEEL-CONCRETE FLOOR SYSTEMS ARE FREQUENTLY USED IN HIGH-RISE APARTMENT AND OFFICE BUILDINGS. THEY NOT ONLY PROVIDE AN EFFICIENT MEANS OF SUPPORTING GRAVITY LOADS BUT CAN SIGNIFICANTLY INCREASE BUILDING STABILITY AND REDUCE DRIFT UNDER COMBINED GRAVITY AND LATERAL LOADS. CURRENT RESEARCH IS INBESTIGATING UNBRACED MULTI-STOREY FRAMES WITH CONTINUOUS COMPOSITE BEAMS.

  • Authors:
    • Daniels, J H
  • Publication Date: 1972-10

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Filing Info

  • Accession Number: 00209986
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 15 1974 12:00AM