2026-04-17T05:27:13Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1116232025-07-17T01:09:40Zcom_2072_1033col_2072_452950

Performance assessment of embedded distributed optical fiber sensors in reinforced concrete structures Barrias, Antonio Jose de Sousa Casas Rius, Joan Ramon Villalba Herrero, Sergi Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures Structural health monitoring distributed optical fiber sensors structural health monitoring crack detection concrete structures Monitorització de salut estructural In this paper, an experiment where distributed optical fiber sensors (DOFS) were implemented in two small concrete beams subjected to a three-point load test is outlined. Here, an optical backscatter reflectometry based DOFS is implemented simultaneously embedded in the concrete (glued to the steel rebar) and attached to the outer surface of the concrete after its hardening. For comparison purposes, three electrical strain gauges are also used in the rebar. The main objectives with this experiment, is to analyze the feasibility of installation of DOFS directly on the rebar element of a reinforced concrete beam and compare the measured strain at rebar and surface of the concrete. Postprint (published version) 2017 Conference report Restricted access - publisher's policy International Association for Bridge and Structural Engineers (IABSE)