Visual inspection in evaluation of bridge condition Given that visual inspection is vital when evaluating the condition of bridges, it plays a crucial role in planning the special maintenance works. At the beginning of 2012, a research was conducted in HAC (Croatian Highways) aiming to standardize evaluation of bridges. The bridge engineers had assessed a certain group of buildings, and their results were afterwards analysed using the mathematical statistics methods. The obtained results showed weaknesses in the existing evaluation system, and the conducted research created a base for improving aides for management, handbooks and procedures for bridge inspection.
Bridge condition forecasting for maintenance optimisation The bridge management system used on the national road network of the Republic of Croatia does not contain the deterioration forecasting model that could be used for planning future remedial activities. A database on the condition of bridge elements has nevertheless been compiled, containing numerical values of the degree of deterioration. Results obtained by analysing usability of three deterioration models are presented in the paper in order to estimate which one would be the most favourable for Croatian conditions. The model based on the Markov process was found to be the most appropriate.
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