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Engineered wood in cold climate: application to monitoring of a new Swedish suspension bridge
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0001-5872-2792
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0001-8404-7356
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-7076-9494
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-0560-9355
2013 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 639-640, p. 96-104Article in journal (Refereed) Published
Abstract [en]

Engineered wood is increasingly used in large structures in Europe, though little is known of its behavior in cold climate. This paper presents the structural health monitoring (SHM) system of a newly built suspension bridge with a deck of glulam timber as well as a bond stability study regarding cold climate performance of engineered wood. The bridge is located in Skellefteå in northern Sweden, and it connects two parts of the city situated on opposite shores of the Skellefteå river. In this ongoing study of the timber-bridge, a structural health monitoring system is employed to verify structural design and long-term performance. This 130m-span bridge is monitored using GNSS receivers, MEMS accelerometers, laser positioning systems, wireless moisture content sensors, strain gauges and weather stations. Data from the monitoring systems is analyzed regarding accuracy, complexity, costs and reliability for long time use. Engineered wood application in bridges, sports centers and timber buildings are discussed. Bond stability of glulam structures in cold climate is also examined in a range of experiments ranging from small glued wood joints to full size glulam bridge performance over time. From an engineered wood material point of view, the study is relevant to cold regions such as Scandinavia, Canada, Alaska, Russia, and the northern parts of China and Japan etc. The engineered wood constructions in these areas will be exposed to low temperature in a quite long period each year. The goal is to determine how engineered wood behaves when exposed to temperatures between 20 °C to -60 °C.

Place, publisher, year, edition, pages
2013. Vol. 639-640, p. 96-104
Keywords [en]
Civil engineering and architecture - Building engineering
Keywords [sv]
Träkonstruktioner, Kallt klimat, Samhällsbyggnadsteknik och arkitektur - Byggnadsteknik
National Category
Other Mechanical Engineering Infrastructure Engineering
Research subject
Wood Products Engineering; Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-27461DOI: 10.4028/www.scientific.net/AMR.639-640.96ISI: 000320199700007Scopus ID: 2-s2.0-84873148688Local ID: 0ebc0cb7-36c5-4113-8a8e-d1aeee80ca4dOAI: oai:DiVA.org:ltu-27461DiVA, id: diva2:1000645
Conference
International Conference on Advances of Civil Infrastructure Engineering : 15/09/2012 - 16/09/2012
Note
Validerad; 2013; 20121123 (elfgren); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Publisher's full textScopushttp://www.scientific.net/AMR.639-640.96

Authority records BETA

Wang, Xiaodong (Alice)Hagman, OlleBjörngrim, NiclasElfgren, Lennart

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