HIGHWAY BRIDGE FLOORS-A SYMPOSIUM

LABORATORY RESEARCH ON CONCRETE BRIDGE FLOORS IS DISCUSSED COVERING TESTING OF SCALED MODELS UNDER VARIOUS LOADING CONDITIONS. A FEATURE COMMON TO ALL THE LARGE MODEL TESTS WAS THE STUDY OF THE BEHAVIOR OF SLABS IN BOTH THE UNCRACKED AND THE CRACKED CONDITIONS. THE BEHAVIOR OF THE STRUCTURE AT DESIGN LOADS WAS DETERMINED. A STUDY WAS CONDUCTED OF CONDITIONS AT OR NEAR FAILURE, IN WHICH LOADS REPRESENTING WHEEL LOADS WERE APPLIED AT CRITICAL SECTIONS OF THE SLAB TO PRODUCE FAILURE. RECOMMENDATIONS ARE PRESENTED FOR THE DESIGN OF THE SLAB AND THE I-BEAMS OF A HIGHWAY BRIDGE. CONSIDERATION IS GIVEN TO SIMPLE AND CONTINUOUS SPANS, RIGHT AND SKEW BRIDGES AND BRIDGES IN WHICH T-BEAM ACTION WAS OBTAINED BY THE USE OF EITHER SHEAR CONNECTORS OR CONCRETE BEAMS. THE BEHAVIOR OF THE SLAB AND STRINGER HAVING BEAMS IN THE DIRECTION OF TRAFFIC IS DISCUSSED. THE PRACTICAL SIGNIFICANCE OF THE DESIGN RECOMMENDATIONS IS DISCUSSED IN RELATION TO CURRENT PRACTICE AND SPECIFICATIONS. IT APPEARS TO BE A COORDINATED STEP IN DETERMINING THE THEORY TO BE APPLIED IN THE DESIGN OF COMPOSITE BRIDGES BASED ON TEST RESULTS. RESULTS ARE PRESENTED OF ANALYTICAL AND EXPERIMENTAL STUDIES OF COMPOSITE CONSTRUCTION FOR I-BEAM HIGHWAY BRIDGES. DESIGN PROBLEMS OF COMPOSITE BEAMS ARE DISCUSSED. TESTS OF SHEAR CONNECTORS, PARTICULARLY OF THE CHANNEL TYPE, ARE DESCRIBED. THE EFFECTS OF WIDTH OF CONNECTOR, THICKNESS OF CHANNEL WEB AND THE COMPRESSIVE STRENGTH OF THE CONCRETE IN THE SLAB WERE INVESTIGATED. A RECORD IS PRESENTED OF THE RESULTS AND ANALYSIS OF STEEL BEAM BRIDGES WITH CONCRETE DECKS.

  • Supplemental Notes:
    • Vol 114, PaPER NO 2381, PP 979-1045
  • Publication Date: 1949

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  • Accession Number: 00208517
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 10 1994 12:00AM