USE OF STRUCTURAL MONITORING FOR UP-DATING RELIABILITY ANALYSIS: APPLICATION ON PILE-SUPPORTED WHARVES

Abstract eng:
Optimization of the maintenance of existing structures requires accurate models for describing their real behavior. The structural monitoring of complex structures is actually the only way for reaching as close as possible their real in-service behavior. We present here a reliability analysis of pile-supported wharves whose containers cranes are submitted to extreme storm loading. The modeling of in-service behavior of these structures in conjunction with structural monitoring allows assessing the level of loading and provides more realistic models. A stochastic modeling takes into account the large scatter of measured quantities. It lets to identify main random fields influencing mechanical behavior. A decomposition on polynomial chaos of random identified fields and wind loading acting on a container crane is then selected. A performance criterion, based on wharf displacement and in line with the so-called ServiceLimit-States is suggested for reliability analysis.

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