Ks. Chen et Sk. Zhang, SEMI-PROBABILISTIC METHOD FOR EVALUATING SYSTEM REDUNDANCY OF EXISTING OFFSHORE STRUCTURES, Ocean engineering, 23(6), 1996, pp. 455-464
Various forms of recently appeared concepts of structure system redund
ancy are studied. A new measure for existing structure redundancy is p
roposed. By introducing the concept of structure system failure at the
mechanism level and the concept of equivalent reliability index, the
evaluation of safety criteria for existing offshore structures is deve
loped. By employing the method presented in this paper, system redunda
ncy has been evaluated for some numerical examples and satisfactory re
sults have been drawn.