A quantitative risk-based maintenance strategy is developed in this paper for coastal reinforced concrete (RC) structures subjected to corrosive environment and hydrodynamic action. In the maintenance strategy, three types of maintenance, i.e., (i) superficial patching for corrosion-induced longitudinal surface cracking, (ii) major repair for concrete delamination and (in) overall structural strengthening for strength failure, are considered. Taking the time of maintenance due to cracking, delamination and failure as design variables, an optimization algorithm is formulated for the total cost of a coastal RC structure. The maintenance strategy provides a scientific and economic basis in decision-making with regard to (i) what type of maintenance is required and (ii) the timing of this maintenance. Finally, a numerical example is given for demonstrating the validity of the algorithm presented in this paper.
|Title of host publication||Structural Health Monitoring and Intelligent Infrastructure - Proceedings of the 2nd International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2005|
|Number of pages||5|
|Publication status||Published - 1 Jan 2006|
|Event|| Structural health monitoring and intelligent infrastructure : proceedings of the Second International Conference on Structural Health Monitoring of Intelligent Infrastructure - Shenzhen, China|
Duration: 16 Nov 2005 → 18 Nov 2005
|Conference||Structural health monitoring and intelligent infrastructure : proceedings of the Second International Conference on Structural Health Monitoring of Intelligent Infrastructure|
|Period||16/11/05 → 18/11/05|