On the Stability Capacity of Steel Tube Filled with Steel-Reinforced Concrete Column Subject to Axial Compression

Abstract:

Steel tube filled with steel-reinforced concrete (STSRC) is a new kind of heavy load column, which made by inserting steel skeletons into the steel tube, then injecting the concrete to the tube. In order to study the combined column’s stability subject to axial compression, we use energy method and numerical methods analysis derives the formula of stability coefficient in which slenderness ratio as the main parameters. Using the 1/1000 column length as the initial deflection of the STSRC columns by FORTUNE calculation program, stability coefficient is produced through comparison and analysis between calculated results from quantile regression and that from ordinary least square regression respectively. According to the computer results and energy method, the formula for calculating the axial stability bearing capacity of STSRC was established. A good agreement between the calculation results and testing results illustrates, which is feasible to using the calculating formula to calculate the bearing capacity of STSRC

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 3177-3181
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.3177
• Online since: March 2012
• Authors: Xiao Liu, Lei Zhao
• Keywords: Axial Compression, Slenderness Ratio, Stability Coefficient, Steel Tube Filled with Steel-Reinforced Concrete

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