THE RELATIONSHIP OF BOX BEAM THEORIES TO BRIDGE DESIGN
METHODS OF ANALYZING A WIDE RANGE OF BOX STRUCTURES HAVE BEEN DEVELOPED WHICH GIVE A PHYSICAL UNDERSTANDING OF STRUCTURAL BEHAVIOR AND FACILITATE A SYNTHETIC APPROACH TO DESIGN. SEVERAL OF THESE METHODS ARE DESCRIBED IN THIS PAPER. COMPARISONS DEMONSTRATING THEIR ACCURACY FOR DESIGN ARE GIVEN FOR A SPINE BOX STRUCTURE UNDER TWISTING LOADS. IN PARTICULAR, THE EFFECT OF LOADS APPLIED TO CANTILEVER SYSTEMS IS DISCUSSED WITH NUMERICAL CONFIRMATION OF THE CONCLUSIONS. AN EXTENSION OF THE APPROACHES TO A SERIES OF BEAMS INTERCONNECTED BY A PLATE OR CROSS-GIRDER SYSTEM IS PRESENTED. MECHANISMS FOR REPRESENTING THE ESSENTIAL CHARACTERISTICS OF MULTI-CELL BOX BEAMS WITHOUT TRANSVERSE DIAPHRAGMS ARE DESCRIBED, WITH COMPARISONS OF STRESSES AND REACTIONS FOR A SKEW MULTI-CELL BOX. CURVED BOX BEAMS ARE DISCUSSED AND THE EFFECTS OF THIN WALLS ON THE PRIMARY BENDING MOMENTS MENTIONED. FINALLY THE USE OF FINITE ELEMENT METHODS FOR SOLVING COMPLEX BRIDGE STRUCTURES IS DISCUSSED. /AUTHOR/
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Authors:
- Richmond, B
- Publication Date: 1971
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 237-45
- Serial:
Subject/Index Terms
- TRT Terms: Analysis; Box girders; Bridges; Cantilevers; Cellular structures; Finite element method; Loads; Stresses; Structural analysis; Structural mechanics
- Uncontrolled Terms: Structural behavior
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00210169
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: TRIS
- Created Date: May 15 1973 12:00AM