000011145 001__ 11145
000011145 005__ 20141205155840.0
000011145 04107 $$aeng
000011145 046__ $$k2008-10-12
000011145 100__ $$aNateghi Elahi, Fariborz
000011145 24500 $$aExperimental Behavior of Brick-Infilled Concrete Frames Strengthed by CFRP with Improved Attaching Technique

000011145 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011145 260__ $$b
000011145 506__ $$arestricted
000011145 520__ $$2eng$$aDue to various deficiencies and inadequate lateral stiffness many reinforced concrete buildings are highly damaged or collapsed in Iran and throughout the world during the last major earthquakes. In this study, retrofitting of undamaged infilled reinforced concrete frames using Carbon fibre-reinforced polymer (CFRP) is discussed in detail. The main objective of the extensive experimental program is to reinforce the masonry infilled concrete frames, which are known to contribute to the seismic performance of the reinforced concrete structures significantly and to improve the behavior of such buildings to prevent total collapse. CFRP sheets are wrapped around the column to prevent the shear failure. CFRP sheets are attached to the masonry wall faces and anchor to the concrete frame to carry diagonal tension. The frame of the specimens is designed and detailed in accordance to the old codes. Four 1/2 scaled 1-story, 1-bay brick infilled concrete frame are tested; namely, a control specimen and three rehabilitated specimens. The specimens are tested under reversed cyclic quasidynamic load to the failure. Strength, stiffness, and story drifts of the test specimens are determined. The control specimen showed combined brittle column shear and corner crushing infill failure modes while the rehabilitated specimens showed a more ductile failure mode. This paper is to discuses specific design, test setup, analytical and theoretical background as well as improved results obtained during testing. Finally a series of recommendations is proposed for the actual use of CFRP's in the industry.

000011145 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011145 653__ $$aConcrete, Infilled Frame, CFRP, Masonry, retrofitting

000011145 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011145 720__ $$aNateghi Elahi, Fariborz$$iDehghani, Ayuob
000011145 8560_ $$ffischerc@itam.cas.cz
000011145 8564_ $$s787452$$uhttps://invenio.itam.cas.cz/record/11145/files/12-03-0029.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-03-0029.
000011145 962__ $$r9324
000011145 980__ $$aPAPER