Comparison of working stress and limit state design in the design of space frames

The purpose of this project is to compare the application of the working stress and the plastic design methods in the design of steel space frames. To introduce the subject, the structural concepts associated with space frames will be introduced. Then an approximate method for determining the forces in the members is discussed. This is followed by a discussion of the working stress and plastic or limit state design methodologies and the application of their respective formulas. Finally, an actual space frame is designed by the working stress method and the plastic design method, and the results compared.