Strain monitoring in a reinforced concrete slab sustaining service loads by distributed Brillouin fibre optic sensors

• DOI: 10.1139/l10-080
• Publication Date: 2010-10-04T10:57:35Z
• Authors: Beatriz Martín-Pérez; Amre Deif; Bruno Cousin; Chunshu Zhang; Xiaoyi Bao; Wenhai Li
• Keywords: Slab; Strain gauge; Brillouin zone; Service life; Ductility (Earth science)

Reinforced concrete (RC) structures deteriorate and as a result crack due to extreme loading (or) environmental conditions. Damage accumulation such adversely affects the structure’s durability properties, impairing its service life. The intensity of cracking in an RC structure is usually regarded key criterion toward damage assessment repair intervention. This paper presents results experimental program which strains small-scale slab sustaining in-service loads were monitored by traditional electrical strain gauges distributed Brillouin fibre optic sensors attempt detect formation. A comparison these measurements with classical bending theory also presented. show that can capture both tensile compressive concrete; however, accuracy their dependent on proper installation length over are be measured.