Objective Through the development of several models, the system aims to bring practical and economic values to the analysis of structural safety in the offshore industry. The models can be used by engineers to demonstrate the effectiveness of a design, assess the strengths and weaknesses of a design, and aid the inspection process.Probabilistic modelling of environmental loads, pile foundations, tubular member behaviour, and fatigue/fracture behaviour of tubular joints; the development of efficient methods for performing global structural analysis; the development of improved methods for structural system reliability analysis and the development of methods for structural optimization under reliability constraints are incorporated in RASOS.A database has been set up for compiling and analysing inspection data, both for new projects and maintenance and repair of existing ones.RASOS may be used for code development and evaluation of partial safety factors; design or assessment of specific structures; inspection and repair decisions for existing structures; parametric studies and structural optimization.The aim of the project was to develop probability based design methods for use by the engineering profession in the offshore industry. The project has dealt with the development of methods and software for calculating the probability of failure of jacket type structures for a variety of member failure modes (plasticity, buckling, fatigue). The effect of redundancy of the structures can be investigated by calculating the combined probability of sequences of member (end) failures, either automatically or user specified. For plasticity limit states advanced Monte Carlo options are available. Particular aspects of the probabilistic analysis of offshore structures included: probabilistic modelling of environmental loads, pile foundations, tubular member behaviour and fatigue/fracture behaviour of tubular joints; development of efficient methods for performing global structural analysis; development of improved methods for structural system reliability analysis and development of methods for structural optimization under reliability constraints; and application of probabilistic methods in the fields of inspection, maintenance and repair. These objectives have been largely fulfilled and in some areas the developments have been more significant than was originally considered possible. In the case of inspection, maintenance and repair, a database system has been developed which can be used for compiling and analyzing inspection data. All the models and methods have been incorporated into a computer based reliability analysis system for offshore structures (RASOS). This is supported by extensive documentation comprising users' manuals, programmers' manuals and theoretical manuals. For use with RASOS a recommended set of models for random variables has been set up.THE PROJECT HAS THE GENERAL OBJECTIVE OF PROMOTING THE USE OF PROBABILISTIC MET HODS BY THE ENGINEERING PROFESSION AND SPECIFIC OBJECTIVES IN TERMS OF THE DEVE LOPMENT OF CERTAIN AREAS IN PROBABILISTIC ANALYSIS OF OFFSHORE STUCTURES. THESE SPECIFIC AREAS ARE: 1. MODELLING OF BASIC VARIABLES AND MEMBER FAILURE MECHANISMS 2. MODELLING OF THE BEHAVIOUR OF DAMAGED MEMBERS 3. METHODS TO CALCULATE THE OVERALL SYSTEM RELIABILITY 4. APPLICATION OF PROBABILISTIC METHODS IN THE FIELDS OF INSPECTION, MAINTENANC E AND REPAIR. THE PROJECT WILL RESULT IN OPERATIONAL COMPUTER PROGRAMMES FOR THE CALCULATION OF THE SYSTEM RELIABILITY AND A NUMBER OF REPORTS TO GUIDE THE USER IN VARIOUS CIRCUMSTANCES. Fields of science natural sciencescomputer and information sciencessoftwareengineering and technologycivil engineeringwater engineeringocean engineeringnatural sciencescomputer and information sciencesdatabases Programme(s) FP1-BRITE - Multiannual research and development programme (EEC) in the fields of basic technological research and the applications of new technologies (BRITE), 1985-1988 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE Address South kensington campus London United Kingdom See on map EU contribution € 0,00 Participants (10) Sort alphabetically Sort by EU Contribution Expand all Collapse all AALBORG UNIVERSITY Denmark EU contribution € 0,00 Address 57,frederic bajers vej 5 9220 Aalborg See on map Atkins Wootton Jeffreys Consultants Ltd United Kingdom EU contribution € 0,00 Address Woodcote grove ashley road KT18 5BW Epsom See on map BUREAU VERITAS S.A. France EU contribution € 0,00 Address Place des reflets 17 bis, paris la defense 2 92400 Courbevoie See on map Business Unit of TNO Built Environment and Geosciences Netherlands EU contribution € 0,00 Address Van mourik broekmanweg 6 2628 XE Delft See on map Links Website Opens in new window Centre Technique Industriel de la Construction Métallique France EU contribution € 0,00 Address Domaine de saint-paul 78470 Saint-rémy-ls-chevreuse See on map D'APPOLONIA SPA Italy EU contribution € 0,00 Address Via san nazaro 19 Genova See on map Links Website Opens in new window ELF Antar France France EU contribution € 0,00 Address 2 place de la coupole 92078 Paris la défense See on map IFREMER - INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER France EU contribution € 0,00 Address Rue jean-jacques rousseau 155, technopolis 40 92138 Issy les moulineaux See on map REGISTRO ITALIANO NAVALE Italy EU contribution € 0,00 Address Via del viminale, 43 00184 Roma See on map SNAMPROGETTI SPA Italy EU contribution € 0,00 Address Viale alcide de gasperi 16 20097 San donato milanese See on map
