Polisztirolbetonba ágyazott hidegen alakított acél viselkedésének numerikus vizsgálata külpontos nyomás esetén
Numerical Investigations on Polystyrene Aggregate Concrete Encased Cold Formed Steel Elements Subjected to Eccentric Compression
Keywords:
cold-formed steel, polystyrene aggregate concrete (PAC), eccentric compression, FEM, axial-bending interaction, /, hidegen alakított acél, polisztirolbeton, külpontos nyomás, végeselem-módszer, nyomás–hajlítás interakcióAbstract
This paper investigates the structural behaviour of polystyrene aggregate concrete encased cold-formed steel sections subjected to eccentric compression through detailed finite element modelling. A comprehensive parametric study was conducted to evaluate the effect of different parameters on the load-bearing capacity, such as load eccentricity, core steel thickness, and yield strength. As a result, a predictive equation was derived based on FEM outcomes to estimate load reduction compared to a centric case based on normalized load eccentricity.
Kivonat
A cikk a polisztirol adalékos betonba burkolt, hidegen alakított acélszelvények külpontos nyomás hatására bekövetkező szerkezeti viselkedését vizsgálja fejlett végeselem-modell segítségével. Átfogó paramétervizsgálatot végeztünk annak érdekében, hogy értékeljük a különböző tényezők – például a teher külpontossága, az acél vastagsága és a folyáshatár – hatását a teherbírásra. Ennek eredményeként a modell eredményei alapján egy közelítő egyenlet került meghatározásra, amely a normalizált teher külpontossága alapján becsli a teherbírás központos esethez képesti csökkenését.
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