A DISCRETE-ELEMENT METHOD OF ANALYSIS FOR ORTHOGONAL SLAB AND GRID BRIDGE FLOOR SYSTEMS

A METHOD IS PRESENTED FOR THE DISCRETE-ELEMENT ANALYSIS OF ISOTROPIC OR ORTHOTROPIC SLABS AND PLATES ON ELASTIC SUPPORTS. AN INTEGRAL GRID-BEAM SYSTEM CAN ALSO BE INCLUDED WHICH MAKES IT ESPECIALLY USEFUL FOR HIGHWAY BRIDGE STRUCTURES. OTHER STRUCTURES SUCH AS HIGHWAY AND AIRFIELD PAVEMENTS ON ELASTIC FOUNDATIONS, FLAT OR HAUNCHED BUILDING SLABS, TWO-WAY MAT FOUNDATIONS, STIFFENED PLATES, OR ANG GRID-TYPE SUBASSEMBLAGE OF MORE COMPLEX STRUCTURES CAN ALSO BE INVESTIGATED. THE DEVELOPED COMPUTER PROGRAM ALLOWS FOR THE FREE VARIATION OF STIFFNESSES, SUPPORTS, AND LOADS. IN-PLANE AXIAL THRUSTS, IF THEIR DISTRIBUTION IS KNOWN, ARE INCLUDED AND COUPLED WITH THE STIFFNESSES OF THE SRUCTURE. INPUTS TO THE PROGRAM MAY BE RETAINED AND USED FOR A SERIES OF PROBLEMS FOR THE CONVENIENCE OF THE USER. SEVERAL PLOTTED OUTPUT OPTIONS ARE AVAILABLE INCLUDING A THREE-DIMENSIONAL DISPLAY OF THE EXAGGERATED DEFLECTED SHAPE OF THE STRUCTURE. FOUR EXAMPLE PROBLEMS ARE PRESENTED OF A TYPICAL HIGHWAY BRIDGE PRESENTLY IN USE BY THE TEXAS HIGHWAY DEPARTMENT. THE PROBLEMS INCLUDE AND DISCUSS MOST OF THE BRIEF INPUT CALCULATIONS AND ASSUMPTIONS NECESSARY.

  • Supplemental Notes:
    • RESEARCH NO 3-5-63-56
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  USA  78712

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701
  • Authors:
    • Panak, J J
    • Matlock, H
  • Publication Date: 1972-5

Media Info

  • Pagination: 170 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00205395
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: No 56-25 Res Rpt
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: May 7 1973 12:00AM