Pre-requisite: 70470
Pre-requisite: 64613
Engineers are often called upon to design complex structures. The design process includes an analysis phase in which stress - resultants or stresses are determined using accepted structural principles. These days the analysis of all but simple structures is carried out with the aid of computer programmes. These programmes must be used with understanding, particularly in regard to the limitations of the theory being used, modelling techniques and verification/interpretation of the results. This unit builds upon the material presented in Engineering Statics and Structural Design I. It introduces the classical slope - deflection relationships for prismatic members, develops the moment distribution method and applies it to continuous beams and simple frames. The strength and stiffness behaviour of isolated compression members is also studied further. A first order linear elastic method for the analysis of two dimensional rigid jointed frames is developed, using the stiffness matrix method. This method is then extended to account for geometric second order effects and is used to examine the elastic buckling of complete frames. Steel frame collapse due to the formation of plastic hinges is also studied using traditional theorems of plastic collapse and by adapting a suitable piece wise linear elastic analysis. The unit concludes with an introduction to the analysis of elastic continua using the finite element method including bar, beam and plane stress element development.