000009240 001__ 9240
000009240 005__ 20141204092421.0
000009240 04107 $$aeng
000009240 046__ $$k12/05/2014
000009240 100__ $$aVokáč, M.
000009240 24500 $$aMeasurement of strains in concrete by interferometric fibre optic sensors

000009240 24630 $$n18.$$pEngineering Mechanics 2012
000009240 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009240 506__ $$arestricted
000009240 520__ $$2eng$$aIn recent years, fiber-optic technology appeared in measurement technology and sensors. The great advantage of fiber-optic technology is lifespan and measurement which is not influenced by electromagnetic fields. Therefore, the large cable length can be used. For the same rea sons, the optic fibers are used in computer networks. A number of physical principles can be used for measuring. In the case of measuring strains in the concrete, a relatively simple and economically favorable principle of low-coherence interferometer can be used. These i nterferometric extensometers were used to measure strains in the pre-stressed concrete railway sleepers st ored in the laboratory. Thus, effects of creep and shrinkage of concrete were monitored. The experiment was supplemented by tests on the accompanying specimens, i.e., the concrete strength, modulus of elasticity and sh rinkage and creep measurements. Experimentally obtained data was compared with standard assumptions for the design of concrete structures EN 1992-1-1.

000009240 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009240 653__ $$afiber-optic sensor, concrete, strain, shrinkage, creep

000009240 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009240 720__ $$aJiroutová, D.$$iVokáč, M.$$iBouška, P.
000009240 8560_ $$ffischerc@itam.cas.cz
000009240 8564_ $$s700811$$uhttps://invenio.itam.cas.cz/record/9240/files/205_Vokac_M-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 205).
000009240 962__ $$r8924
000009240 980__ $$aPAPER