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Abstrakt

Timber bridges require often more frequent maintenance intervals than concrete and steel bridges. Continuous measurements can provide opportunities for better tools to put the maintenance activities at the right time. New technology provides better opportunities for continuous measurement and which provides more information and increased opportunities to influence the maintenance costs. This paper reports initial steps to find reliable and cost-effective measurement systems for health monitoring timber bridges. A timber bridge for pedestrians will to be built over the Skellefte River. The construction of this advanced bridge provides a unique opportunity to test, develop and evaluate methods for wooden structures. For verifying the structural design it is planned to use three different systems, triaxial accelerometers, fiber optic system and GPS-system. Comparisons between these systems will be done due to, accuracy, complexity, costs and reliability for long time use.

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