SEISMIC PERFORMANCE OF STEEL-ENCASED COMPOSITE COLUMNS

This technical paper describes an experimental investigation in which composite columns were subjected to simulated seismic loading conditions. Eight two-thirds scale specimens were tested, each consisting of a structural steel shape encased in reinforced concrete. Researchers studied the following parameters: 1) degree of concrete confinement required to achieve adequate ductility under cyclic loading, 2) effectiveness of flange shear studs for enhancing flexural stiffness and strength, 3) concrete compressive strength, and 4) the shear resistance mechanism of the composite column. The encased composite columns performed well; cyclic strength and ductility is enhanced when buckling of the longitudinal reinforcement is prevented. Further, the encased column provided the primary resistance to transverse shear during overloading.

Language

  • English

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Filing Info

  • Accession Number: 00666036
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 21 1994 12:00AM