000009945 001__ 9945
000009945 005__ 20141205153209.0
000009945 04107 $$aeng
000009945 046__ $$k2008-10-12
000009945 100__ $$aErdil, Baris
000009945 24500 $$aBehaviour of CFRP Reinforced Low-Strength Concretes Subjected to Temperature Changes and Sustained Loads

000009945 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009945 260__ $$b
000009945 506__ $$arestricted
000009945 520__ $$2eng$$aAfter the catastrophic earthquakes in Turkey, it was realized that most of the concrete buildings at seismically active regions do not have adequate strength and ductility. In order to make those buildings survive during major earthquakes, they need to be seismically retrofitted. One alternative strengthening technique is the use of carbon fiber reinforced plastic (CFRP) wrapping technique. CFRP has a high tensile strength, a high modulus and is also light in weight and easy to handle. Although, CFRP applications are gaining popularity in seismic retrofitting, their long term behavior is still not very well known. While strengthening of the buildings with CFRP several layers of epoxy based adhesives are used. Those layers of materials as well as CFRP wrapped concrete may therefore be affected by different stress levels and environmental changes. In this study, the behavior of CFRP wrapped low strength (10 MPa) cylindrical concrete specimens (150x300 mm) are investigated when they are subjected to the compressive loads and temperature changes to determine the possible changes in strength and ductility. Sustained loads that are applied on cylinders are determined as the 40 % of their maximum strength. In addition to sustained loads, specimens are subjected to 200 temperature cycles, changing between -10°C to 50°C. In order to better understand the behavior of the CFRP wrapped concrete cylinders, specimens are divided in three groups. In each group mechanical characteristics are investigated to determine the effects of temperature changes, and sustained loads. This study presents the results of this ongoing project.

000009945 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009945 653__ $$aCFRP-strengthening, concrete, durability, long-term behavior, thermal effects

000009945 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009945 720__ $$aErdil, Baris$$iAkyuz, Ugurhan$$iYaman, I. Ozgur
000009945 8560_ $$ffischerc@itam.cas.cz
000009945 8564_ $$s955743$$uhttps://invenio.itam.cas.cz/record/9945/files/12-01-0021.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0021.
000009945 962__ $$r9324
000009945 980__ $$aPAPER