The calibration rationale for combination factors dead load, snow and wind loads in design of steel structures with DSTU-N B EN 1990
Abstract: The article deals with calibration rationale for safety factors and combinations for dead load, wind and snow loads. The problem of combination of constant load and couple of temporary loads has been represented. The evaluation model of characteristics of temporary loads, the models of snow and wind loads and their combinations, which based on working results of V. A. Pshinski, have been given. The existing rules of effects combinations during calculation of constructions according to the first group of extreme limit state have been given. Calibration values of safety factors and combinations has been carried out involving probabilistic methods for reliability analysis of structures taking into account stochastic properties of external influences. It has been found out that the first-order definable attitude to the loads combinations, which is used in Ukraine national construction regulation «Loads and influence», lead to lower estimation of reliability index, in spite of higher value of combination factor. The ways of solution according to guarantee of reliability indexes of constructions within the ambit of regulatory documents, have been suggested.
Keywords: variable loads, stochastic process, coefficient combinations, safety factor.
Pages: 81-98.
For citation: Makhinko, A. V.; Makhinko, N. A. The calibration rationale for combination factors dead load, snow and wind loads in design of steel structures with DSTU-N B EN 1990. – Text : electronic. – In: Metal Constructions. – 2015. – Vol. 21, N 2. – Р. 81-98. – URL: https://donnasa.ru/publish_house/journals/mk/2015-2/03_makhinko_makhinko.pdf (date of access: 21.11.2024). – ISSN 1993-3517.
Vol. 21, N 2 (2015)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture