Parametric design of class 4 steel cross sections - A comparison between the reduced stress method and the effective width method
Typ
Examensarbete för masterexamen
Program
Publicerad
2021
Författare
Stening, Malin
Kronberg, Maurice
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Eurocode provides two different methods to design steel structures in cross section
class four which is the effective width method and the reduced stress method. The
first mentioned method is the most common method in Sweden and consists of a
rather time consuming calculation procedure. The second method results in a rather
conservative design. The aim with this thesis is to achieve a better understanding
of when and how to use either of the methods, and to achieve an effective design
process with the help of a developed design tool.
The thesis is conducted by a literature study about the two methods and the existing
studies of improved versions of the methods. The literature study is followed by a
parametric study where the methods are compared. The reduced stress method is
both calculated analytically and combined with the FE-programme Sofistik with its
geometry generated with Grasshopper, whereas the effective width method consists
of hand calculations.
Beskrivning
Ämne/nyckelord
structural engineering, bridge engineering, steel cross section class 4, parametric design, reduced stress method, effective width method