MATEC Web Conf.
Volume 107, 2017Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2017
|Number of page(s)||7|
|Published online||24 May 2017|
Regression equations for circular CFST columns carrying capacity evaluation
Ukrainian State University of Railway Transport, Structural Mechanics and Hydraulics Department, Feuerbach sq. 7, 61050 Kharkiv, Ukraine
* Corresponding author: email@example.com
Within the last decades, a considerable amount of experimental studies have been carried out by numerous researchers across the world with the purpose to study the carrying capacity of concrete-filled steel tubular (CFST) columns and evaluation of their stressed-strained state. The array of the obtained results have allowed designing a mathematical model to determine the maximum carrying capacity value of such constructions using the methods of mathematical statistics. The authors obtained three types of regression equations for short and long circular CFST columns with different geometrical and physical properties under axial compression. Statistical quality of the obtained models was verified by both regression equation quality in general and statistical significance of the equation parameters. The comparison of the obtained carrying capacity values with the results calculated by Eurocode 4 and AIJ methodologies allows making a conclusion on the sufficient calculation accuracy of the designed mathematical models.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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