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Wpływ kształtu powierzchniowego kotew wklejanych na ich nośność

Tomaszewicz Dariusz, Baryłka Adam

Materiały Budowlane

2020

nr 6

52--53

Nośność na wyrywanie wkrętów mocowanych w cienkim podłożu

Gosowski B., Gosowski M., Lorkowski P.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

2011

z. 58, nr 1

115-122

The work is about experimental investigations on screw connections used for the light insulated roof, constructed from a trapezoidal sheet on Z-purlins and the insulation core covered by an upper trapezoidal sheet. The tests on pull-out failure load for screws fixed in the thin-walled elements, with thickness less from 2 mm, have been conducted to define the causes of the roof failure of a new erected hall, in with the covering was broken away of the large area due to wind suction. Four different connections that were used in the roof structure and executed from two kinds of self-drilling screws, were examined. The static relationship load-displacement of the connections are apparently non-linear, which considerable elastic and plastic strains. Thus, the obtained results showed the necessity of the screws' pull-out failure load determining can not be based on the destruction but on serviceability limit state.