Structural health monitoring of degrading concrete beams in a laboratory environment
2006 (engelsk)Inngår i: Composites in Civil Engineering: CICE 2006 / [ed] Amir Mirmiran, Antonio Nanni, International Institute for FRP in Construction (IIFC) , 2006, s. 335-338Konferansepaper, Publicerat paper (Annet vitenskapelig)
Abstract [en]
Much effort has been invested separately on degradation, repair and upgrading of concrete structures. However, few holistic studies including laboratory testing have been performed on the entire cycle during a structures life. Reinforced concrete is the most widely used building material in the world. Normally the life of concrete structures is very long. However, concrete structures possess one drawback; at least in severe environments, the steel reinforcement may corrode. The effects can clearly be seen when the steel reinforcement is attacked by chlorides. The reduced steel cross-section area and loss of bond strength between steel and concrete will lead to increased deformations, cracking and premature ultimate load, thus affecting both the serviceability limit state (SLS) and the ultimate limit state (ULS). Procedures to repair and upgrade the damaged structure are used to increase the structural performance. They follow the structural member of time, a SHM (Structural Health Monitoring) approach is adapted to this project. By applying SHM to a degrading structure it assures that it will keep up to current standards by continuous monitoring, analysing, evaluation and eventually also retrofitting.
sted, utgiver, år, opplag, sider
International Institute for FRP in Construction (IIFC) , 2006. s. 335-338
Emneord [en]
Structural Health Monitoring (SHM), degradation, corrosion, chloride, curvature, stiffness, life cycle
HSV kategori
Forskningsprogram
Byggkonstruktion; Konstruktionsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-80210Scopus ID: 2-s2.0-85085863595OAI: oai:DiVA.org:ltu-80210DiVA, id: diva2:1453502
Konferanse
Third International Conference on Composites in Civil Engineering (CICE 2006), 13-15 December, 2006, Miami, Florida, USA
Merknad
ISBN för värdpublikation: 0-615-13586-2
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