Original scientific paper

Numerical investigation of semi-rigid column bases with hysteresis characteristics

Péter Iványi ; Pollack Mihály Faculty of Engineering and Information Technology, University of Pécs, Pécs, Boszorkány u 2, 7624, Hungary

Abstract

The results of numerical experiments on dynamic response of a steel column, with a concentrated mass on the top are presented. The column is fixed in the base subjected to a triangular pulse force. Preisach hysteresis model was applied to investigate the dynamic behaviour of the steel column. In the solution of the non-linear dynamic equation of the motion the fix-point technique is inserted to the time marching iteration. The column base is modelled with a rotational spring of hysteresis characteristics. The top concentrated mass and the base rotation stiffness (hard, medium and soft hysteretic spring) were varied. The results are discussed based on the deflection (displacement) of the free end of the column in 10 s time period.

Keywords

deflection; fix-point technique structural dynamics; non-linear dynamic equation; Preisach model; response

Hrčak ID:

97485

URI

https://hrcak.srce.hr/97485

Publication date:

22.2.2013.

Article data in other languages: croatian

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