Engineering Mechanics

Proceedings Vol. 21 (2015)

ENGINEERING MECHANICS 2015

Copyright © 2015 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

I. Brych, M. Sýkora
pages 34 - 35, full text

The paper focuses on the assessment of cast-iron columns in industrial heritage structures. For cast-iron structures it is difficult to verify metallurgical composition and processing technology, which directly affect the geometry of cross-sections. The crucial issue of reliability of cast-iron structures is their brittle fracture in tension at higher slenderness ratios. The load carrying capacity of columns is determined by their stability and cast-iron strengths in compression and tension. Outcomes of several computational methods, including the procedure recommended in ČSN ISO 13822, are compared with extensive experimental data and model uncertainty is identified. Unknown input parameters for the model proposed by Rondal and Rassmussen [1] that fits best to the data are then validated. The validated model is in a good agreement with experimental data and provides conservative estimates of load carrying capacity. The study provides suggestions to complete the calculation of buckling coefficient contained in ČSN ISO 13822.

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