METHODOLOGICAL ASPECTS OF ASSESSING THE STEEL FRAMES RELIABILITY
DOI:
https://doi.org/10.26906/znp.2019.53.1892Keywords:
reliability, failure mechanism,, steel frames, calculationAbstract
The article highlights the proposed algorithm for evaluating the reliability of steel frames. In particular, it is possible to analyze the reliability of the most likely failure mechanism. Separate assumptions that determine the sequence of application of
the limit equilibrium method are presented. A method for determining the reliability of statically indeterminate steel frames
in the plastic stage is presented. This method provides an opportunity to determine the probable mechanism of destruction.
The ultimate equilibrium method is used to calculate the forces at the final stage of destruction. In the work, the real mechanism of destruction is understood as a mechanism for which the work of external forces to create it is the least. It is revealed
that the real mechanism of destruction is approaching the beam or floor elementary mechanism.
References
DBN V.1.2-14:2018. (2018). System to ensure the reliability and safety of construction sites. General principles for ensuring the reliability and structural safety of buildings
and structures. Kiev: Ministry of Regional Development of Ukraine, Ukrarhbudinform.
Cardozo, F.S., Rasmusen, K.S.F. & Zhang, H. (2019). System reliability-based criteria for the design of steel storage rack frames by advanced analysis: Part I – Statistical
characterisation of system strength. Thin-Walled Structures, 141, 713-724. https://doi.org/10.1016/j.tws.2019.03.006
Cardozo, F.S., Rasmusen, K.S.F., Zhang, H. (2019). System reliability-based criteria for the design of steel storage rack frames by advanced analysis: Part II – Reliability
analysis and design applications. Thin-Walled Structures, 141, 725-739. https://doi.org/10.1016/j.tws.2019.03.021
Duan, H.J., Zhao, J.C., Song, Z.S. (2011). Effects of Initial Imperfection of Bolted End-plate Connections in the Reliability of Steel Portal Frames. Procedia Engineering, 14, 2164-2171. https://doi.org/10.1016/j.proeng.2011.07.272
Li, J., Li, G. (2004). Reliability-based integrated design of steel portal frames with tapered members. Structural Safety, 26 (2), 221-239.
https://doi.org/10.1016/j.strusafe.2003.02.001
Han, Q., Li, X., Liu M., Spencer Jr. B. F. (2019). Performance analysis and macromodel simulation of steel frame
structures with beam-column joints using cast steel stiffeners for progressive collapse prevention. Thin-Walled Structures, 140, 404-415. https://doi.org/10.1016/j.tws.2019.03.050
Kiakojouri, F., De Biagi, V., B. Chiaia, Reza Sheidaii, M. (2020). Progressive collapse of framed building structures: Current knowledge and future prospects. Engineering
Structures, 26. https://doi.org/10.1016/j.engstruct.2019.110061
Trisolini, M., Lewis, H.G., Colombo, C. (2018). Demisability and survivability sensitivity to design-for-demise techniques. Acta Astronautica, 145, 357-384.
