LOCAL BUCKLING IN THREE-DIMENSIONAL FRAMES: EXPERIMENTATION AND SIMPLIFIED ANALYSIS

Authors

  • MARIA EUGENIA MARANTE UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO
  • RICARDO ANTONIO PICON UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO
  • NESTOR GUERRERO UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO
  • JULIO FLóREZ-LóPEZ UNIVERSIDAD DE LOS ANDES

Keywords:

STEEL HOLLOW ELEMENTS, THREE-DIMENSIONAL STEEL STRUCTURES, NONLINEAR ANALYSIS, LOCAL BUCKLING, LUMPED DAMAGE MECHANICS

Abstract

BIDIRECTIONAL LOADING EXPERIMENT TESTS ARE CARRIED OUT TO EXAMINE THE BEHAVIOR OF THIN-WALLED CIRCULAR AND RECTANGULAR STEEL ELEMENTS AND A THREE-DIMENSIONAL FRAMED STRUCTURE. THE EXPERIMENTAL RESULTS WERE USED TO CONFIRM THE VALIDITY OF THE LUMPED DAMAGE MECHANICAL APPROACH TO MODEL THE POST-LOCAL BUCKLING STRUCTURAL BEHAVIOR. IN THIS APPROACH LOCAL BUCKLING IS LUMPED AT PLASTIC HINGES. THE DEGREE OF LOCAL BUCKLING IS REPRESENTED BY A VECTOR DAMAGE VARIABLE. IT IS DESCRIBED THE IMPLEMENTATION OF THE MODEL IN A FINITE ELEMENT PROGRAM.

Author Biographies

MARIA EUGENIA MARANTE, UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO

STRUCTURAL ENGINEERING DEPARTMENT

RICARDO ANTONIO PICON, UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO

STRUCTURAL ENGINEERING DEPARTMENT

NESTOR GUERRERO, UNIVERSIDAD CENTROCCIDENTAL LISANDRO ALVARADO

STRUCTURAL ENGINEERING DEPARTMENT

JULIO FLóREZ-LóPEZ, UNIVERSIDAD DE LOS ANDES

STRUCTURAL DEPARTMENT

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Published

2012-11-05

Issue

Vol. 9 No. 6 (2012)

Section

Articles

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