Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wind uplift strength of trapezoidal steel cladding with closely spaced ribs
When crest-fixed thin trapezoidal steel cladding with closely spaced ribs is subjected to wind uplift/suction forces, local dimpling or pull-through failures occur prematurely at their screw connections because of the large stress concentrations in the cladding under the screw heads. Currently, the design of crest-fixed profiled steel cladding is mainly based on time consuming and expensive laboratory tests due to the lack of adequate design rules. In this research, a shell finite element model of crest-fixed trapezoidal steel cladding with closely spaced ribs was developed and validated using experimental results. The finite element model included a recently developed splitting criterion and other advanced features including geometric imperfections, buckling effects, contact modelling and hyperelastic behaviour of neoprene washers, and was used in a detailed parametric study to develop suitable design formulae for local failures. This paper presents the details of the finite element analyses, large scale experiments and their results including the new wind uplift design strength formulae for trapezoidal steel cladding with closely spaced ribs. The new design formulae can be used to achieve both safe and optimised solutions.
Wind uplift strength of trapezoidal steel cladding with closely spaced ribs
When crest-fixed thin trapezoidal steel cladding with closely spaced ribs is subjected to wind uplift/suction forces, local dimpling or pull-through failures occur prematurely at their screw connections because of the large stress concentrations in the cladding under the screw heads. Currently, the design of crest-fixed profiled steel cladding is mainly based on time consuming and expensive laboratory tests due to the lack of adequate design rules. In this research, a shell finite element model of crest-fixed trapezoidal steel cladding with closely spaced ribs was developed and validated using experimental results. The finite element model included a recently developed splitting criterion and other advanced features including geometric imperfections, buckling effects, contact modelling and hyperelastic behaviour of neoprene washers, and was used in a detailed parametric study to develop suitable design formulae for local failures. This paper presents the details of the finite element analyses, large scale experiments and their results including the new wind uplift design strength formulae for trapezoidal steel cladding with closely spaced ribs. The new design formulae can be used to achieve both safe and optimised solutions.
Wind uplift strength of trapezoidal steel cladding with closely spaced ribs
Windauftrieb an trapezförmigen Stahl-Abdeckungen mit Rippen in geringem Abstand
Mahaarachchi, Dhammika (Autor:in) / Mahendran, Mahen (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 97 ; 140-150
2009
11 Seiten, 23 Quellen
Aufsatz (Zeitschrift)
Englisch
Knicken , Finite-Elemente-Methode , Dach , Stahl , mechanische Spannungsverteilung , Laborversuch , Schraubverbindung , Dachverkleidung (Bauwerk) , Befestigungsvorrichtung , Wind (Meteorologie) , Auftrieb , Unterdruck , Modellsimulation , Versuchsergebnis , elastisches Verbindungselement , Neopren , geometrische Form
Wind uplift strength of trapezoidal steel cladding with closely spaced ribs
| Online Contents | 2009
Wind uplift strength of trapezoidal steel cladding with closely spaced ribs
| Online Contents | 2009
Uplift steel pile foundation with continuous trapezoidal rib plates
| Europäisches Patentamt | 2022
Effects of Fluctuating Wind Uplift Loading on the Pull-out Strength of Steel Cladding Systems
| British Library Conference Proceedings | 2001
Estimation of Compressive Strength of Trapezoidal-Shaped Ribs in Orthotropic Decks
| British Library Conference Proceedings | 2008