SLENDER PRESTRESSED CONCRETE COLUMNS

THE INSTABILITY OF LONG PRESTRESSED CONCRETE COLUMNS IS INVESTIGATED BOTH EXPERIMENTALLY AND THEORETICALLY. TESTS ON 36 SLENDER ECCENTRICALLY LOADED HINGED, AXIALLY PRESTRESSED CONCRETE COLUMNS ARE DESCRIBED AND CONDUCTED TO DETERMINE THE BEHAVIOR OF THE COLUMNS IN THE FULL RANGE OF LOADING, INCLUDING POST-BUCKLING. THE VARIABLES INVESTIGATED ARE ECCENTRICITY, SLENDERNESS, AND PRESTRESS, EACH AT THREE LEVELS. A COMPUTER-ORIENTED THEORY OF NONLINEAR INSTABILITY IS PRESENTED, BASED ON THE COTANGENCY CRITERIA AND USING A FINITE ELEMENT APPROACH. GOOD AGREEMENT IS SHOWN BETWEEN EXPERIMENTAL AND THEORETICAL LOADS AND DEFORMATIONS, BOTH BEFORE AND IN THE POST-BUCKLING REGION. THE EFFECTS OF SLENDERNESS, ECCENTRICITY AND PRESTRESS ARE DISCUSSED. FUTURE RESEARCH NEEDS ARE INDICATED. /ASCE/

• Supplemental Notes:
  • Vol 94, No ST 4, PP 875-904, 17 FIG, 4 TAB, 28 REF, 2 APP
• Authors:
  • Aroni, S
• Publication Date: 1968-4

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Buckling; Columns; Computers; Deformation; Eccentricity; Loads; Nonlinear systems; Prestressed concrete; Stability (Mechanics); Structural engineering; Theory; Thinness
• Uncontrolled Terms: Experimental data; Loading; Slenderness ratio
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208455
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 22 1994 12:00AM