Joint Design in Composite Columns/Steel Beam Structuresby Joseph P. Colaco, CBM Engineers, Houston, United States,
Abstract: The use of a composite building system, utilizing a composite exterior column and a concrete spandrel beam system, proposed by Dr. Fazlur Khan in 1967, is recalled. In the last 25 years, the field was extended to include: composite formed super-columns with Vierendeel steel girder frames; composite shear walls with a steel frame; steel girder link between composite shear walls and composite frames; concrete filled steel tubes with steel girders; composite super-columns with steel diagonal bracing. The article discusses the research into the fundamental behavior of connections between the composite vertical elements and steel beams and/or diagonal braces.
Subject Headings: Steel columns | Composite structures | Steel frames | Composite columns | Steel beams | Composite beams | Cold-formed steel | Steel structures
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