Optimal planning of retrofitting interventions on bridges in a highway network
| Autor: | Marcello Ciampoli, Giuliano Augusti, Dan M. Frangopol |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
dynamic programming
Engineering reliability business.industry Reliability (computer networking) Optimal resource allocation Psychological intervention Structural reliability Optimal planning deteriorating structures reinforced concrete Dynamic programming Transport engineering life-cycle bridges highway networks Intervention (law) Risk analysis (engineering) Retrofitting business Constraint (mathematics) Civil and Structural Engineering |
| Zdroj: | Engineering Structures. 20:933-939 |
| ISSN: | 0141-0296 |
| DOI: | 10.1016/s0141-0296(97)00186-7 |
| Popis: | The aim of the co-ordinated research effort initiated by the Authors consists in developing life-cycle reliability-based methodologies for the management and retrofitting of deteriorating structures and lifelines. As a first step, network systems with vulnerable nodes are considered. The object of this paper is the optimal planning of retrofitting interventions on bridges included in a highway network, taking into account their deterioration and the limitation of available economic resources. The procedure is illustrated with reference to a 10-node network. It is assumed that the resources available for retrofitting are not sufficient to guarantee the required structural reliability for all bridges throughout the design service life: thence the set of retrofitting interventions is sought that maximizes the network reliability (defined as the probability of maintaining connectivity) under a constraint on the total expenditure. The allocation is performed by means of a dynamic programming procedure. |
| Databáze: | OpenAIRE |
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