Finite Element Analysis of Axially Loaded RPC Filled Circular Steel Tube Columns

Abstract:

Further research on constitutive model of RPC (Reactive Powder Concrete) restrained by steel tube under axial compression is analyzed based on the research on concrete-filled steel tube and RPC-filled steel tube at home and abroad. Finite element analysis on RPC-filled steel tube stub columns under axial compression is conducted with ABAQUS to analyze the confinement index, core concrete strength and contact property on ultimate bearing capacity of RPC restrained by steel tube. As the confinement index and the core concrete strength increasing, the bearing capacity of RPC restrained by steel tube increases. The model with frictionless contact form has greater bearing capacity, but the ductility decreases.

• Periodical: Advanced Materials Research (Volume 815)
• Pages: 256-261
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.815.256
• Online since: October 2013
• Authors: Zhan Hui Li, Zhi Gang Yan, Jun Yang, Hua Luo
• Keywords: Concrete-Filled Steel Tube (CFST), Confinement Index, Finite Element Analysis (FEA), Reactive Powder Concrete

References

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[2] Han linhai: Concrete-filled Steel Tubular Structures from Theory to Practice (Science Press, Beijing 2004). (in Chinese).

[3] Yao Liangyun: Researches on Behavior of Eccentrically Load Stub Column and Axially Compressed Slender Column with RPC Filled Circular Steel Tube (Fuzhou University, Fuzhou 2004). (in Chinese).

[4] Yang Wusheng: Researches on Mechanical Property and Ultimate Bearing Capacity of RPC Filled Circular Steel Tube Column (Hunan University, Hunan 2003). (in Chinese).