DESIGN OF STEEL BEARING PLATES
BASE PLATES FOR COLUMNS AND BEARING PLATES FOR BEAMS RESTING ON MASONRY ARE DETAILS ASSOCIATED WITH THE DESIGN OF ALL STEEL STRUCTURES. GIVEN THE LOAD AND ALLOWABLE BEARING PRESSURE, THE AREA OF THE PLATE IS EASILY COMPUTED. FROM THIS, THE OVERHANGING CANTILEVER SPAN CAN BE DETERMINED. IF THE YEILD POINT OF THE STEEL IS KNOWN, THE THICKNESS OF THE PLATE REQUIRED CAN BE DETERMINED BY PROCEDURES OUTLINED IN THE AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC) MANUAL. HOWEVER, DESIGN PROCEDURES PRESENTED IN THE AISC MANUAL ARE SILENT ON TWO QUESTIONS: NO LIMIT IS PLACED ON PLATE DEFLECTIONS, AND COLUMN BASE PLATES NEARLY THE SAME SIZE AS THE COLUMN CAN NOT BE PROPERLY DESIGNED FOR THICKNESS. A MATHEMATICAL ANALYSIS IS PRESENTED OF PLATE DEFLECTIONS AND MINIMUM COLUMN BASE PLATE THICKNESS. AN EQUATION IS DERIVED FOR THE MAXIMUM DEFLECTION AT THE MIDDLE OF THE FREE EDGE OF A PLATE WHICH IS FIXED ON THE OPPOSITE EDGE AND SUPPORTED ON THE OTHER TWO EDGES. AN ASSUMPTION MADE IN THE DERIVATION OF THIS EQUATION IS THAT THE PLATE IS NOT STRESSED BEYOND THE ELASTIC LIMIT. THE MINIMUM THICKNESSES COMPUTED ARE BASED ON ASSUMED UNIFORM BEARING PRESSURE.
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Supplemental Notes:
- Vol 7, No 2, PP 37-40, 2 FIG, 1 TAB, 3 REF
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Authors:
- Fling, R S
- Publication Date: 1970-4
Media Info
Subject/Index Terms
- TRT Terms: Bearings; Cantilevers; Deflection; Mathematical analysis; Steel plates; Structural design; Thickness; Yield point
- Old TRIS Terms: Thickness design
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00209232
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 17 1970 12:00AM