Comparison in compression performance of circular and square RCFT short columns
WEI Hua
ZHANG Zhen
WANG Hai-jun
Abstract：In order to study the compression performance of reinforced concrete-filled steel tube (RCFT) columns, the axial compression experiments were performed for 30 specimens including circular and square hollow steel tube columns, concrete filled steel tube (CFT) columns and RCFT columns.Under the condition that the cross section area of concrete, steel tube and reinforcement has a slight difference, the bearing capacity, deformation performance, synthetic effect and failure mode of circular and square column specimens were compared and analyzed.The results show that the circular CFT columns have higher bearing capacity, better deformation performance and more excellent compression performance than the square CFT columns.For the failure mode, the square CFT columns are superior to the circular CFT columns in the aspect of buckling deformation.
Keywords：compression performancereinforced concrete-filled steel tube columnconcrete filled steel tube columncross section areacompression testbearing capacityductility coefficientfailure mode
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 352-356 )