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Buckling of
circular CFDST slender columns with compliant interfaces:
exact solution
Simon Schnabl and Bojan Čas |
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Vol. 15 (2020), No. 4, 499–509
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Abstract |
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The paper presents a new mathematical model and its exact solution for the buckling analysis of circular CFDST slender columns with compliant interfaces between the steel tubes and sandwiched concrete. The exact critical buckling loads are calculated for the first time. The results are compared to the experimental results and good agreement is obtained. A parametric study is also performed to investigate the effects of different parameters on buckling loads. It is shown that buckling loads can be significantly affected by the finite interface compliance. |
Keywords
buckling, double-skin, debonding, column, exact
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Milestones
Received: 2 March 2020
Revised: 15 June 2020
Accepted: 23 July 2020
Published: 19 October 2020
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Authors |
| Simon Schnabl | |
| Faculty of Civil and Geodetic
Engineering University of Ljubljana 1000 Ljubljana Slovenia |
Faculty of Chemistry and Chemical
Technology University of Ljubljana 1000 Ljubljana Slovenia |
| Bojan Čas | |
| Faculty of Civil and Geodetic
Engineering University of Ljubljana 1000 Ljubljana Slovenia |
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