COLLAPSE BEHAVIOUR OF TRUSS WORK STEEL PLATFORMS

A brief description of likely damage conditions for offshore steel platforms is given. The theoretical basis for two finite element methods for nonlinear collapse analysis is presented, followed by a brief outline of the features of the system behaviour of trusswork platforms. Finally, results are presented for an experiment with a K-brace model, which has been tested to ultimate failure, along with theoretical analysis of simple 3-D systems and a realistic North Sea jacket platform. .