000019645 001__ 19645
000019645 005__ 20170118182330.0
000019645 04107 $$aeng
000019645 046__ $$k2017-01-09
000019645 100__ $$aAvşar, Özgür
000019645 24500 $$aAn Experimental Study of RC Columns With Captive Column Shear Failure Repaired By Cfrp

000019645 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019645 260__ $$b
000019645 506__ $$arestricted
000019645 520__ $$2eng$$aSeismic response of a RC (reinforced concrete) bare frame, a similar frame with partial infills causing captive column defect and repair of the damaged specimen with CFRPs (Carbon Fiber Reinforced Polymer) are investigated in this study. This study mainly aims to investigate the effectiveness of the repair scheme with CFRPs in terms of response quantities such as strength, ductility, dissipated energy and stiffness degradation. Therefore, two 1/3 scale, one bay, one story RC (Reinforced Concrete) frames, which have certain deficiencies resulting from low strength concrete and plain round bar were designed to represent the existing Turkish building stock. Bare frame, which is also reference specimen of this test series, was constructed without infilled wall. On the other hand, the captive column failure described in Turkish Earthquake Code 2007 (TEC 2007) is expected in the second specimen built with partially infilled wall. Severe damage was observed with the concentration of shear cracks in the columns of the specimen built with partially infilled wall. Then, the damaged members were repaired by CFRPs. Damaged RC columns were wrapped by CFRP sheets both in the longitudinal and transverse direction. Repaired specimen was retested to identify how effective the CFRP wrapping is in repairing the shear damage of captive columns. Reversed cyclic lateral displacement under combined effect of axial load was applied to the top of the column. After testing the specimens, flexural cracks were dominated the overall response of the bare frame. A brittle shear failure in the column top ends was observed in the specimen with partially infilled wall. It is found that the former capacity of the damaged specimen was recovered by the applied repair scheme.

000019645 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019645 653__ $$aRC Frames; Captive-column defect; CFRP; Repair

000019645 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019645 720__ $$aAvşar, Özgür$$iTunaboyu, Onur
000019645 8560_ $$ffischerc@itam.cas.cz
000019645 8564_ $$s553950$$uhttps://invenio.itam.cas.cz/record/19645/files/4084.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4084.
000019645 962__ $$r16048
000019645 980__ $$aPAPER