The Bearing Capacity of the Pre-Compressed Concrete Filled Steel Tube Columns

The article describes the accounting technique for concrete pressing and raised concrete deformation properties effect when calculating the bearing capacity of the pre-compressed concrete filled steel tube columns. Reliability of the received formulas and dependences is confirmed by experimental data. Due to the fact that the deformation properties of a concrete core in concrete filled steel tube columns significantly exceed the deformation properties of the uniaxial compressed concrete in similar designs, the possibility of high-tensile reinforcement effective use is provided.