Yazar "Tankut, Tugrul" seçeneğine göre listele

Listeleniyor 1 - 5 / 5
  • [ X ]
    Öğe
    Experimental Study on Seismic Strengthening of Reinforced Concrete Frames by Precast Concrete Panels
    (Amer Concrete Inst, 2011) Baran, Mehmet; Tankut, Tugrul
    The purpose of this study is to investigate the behavior of reinforced concrete (RC)frames under cyclic loads strengthened by using precast concrete (PC) panels. The idea is to transform the existing hollow brick infills into strong and rigid infills by bonding relatively high-strength PC panels with a thin layer of epoxy mortar By this method, the seismic behavior of the frame is improved. For this purpose-one being reference-a total of 11 one-third scale, one-hay, two-story deficient RC frames were tested under reversed cyclic lateral loads. Six different panel types were used for strengthening purposes. It was observed that the strength, lateral stiffness, and energy dissipation capacity of strengthened frames were significantly improved.
  • Küçük Resim
    Öğe
    Flexural strengthening and repair of RC slabs by adding a new RC layer
    (Ernst & Sohn, 2016) Aykac, Sabahattin; Kalkan, Ilker; Tankut, Tugrul
    The present paper summarizes the findings of an experimental programme to investigate a strengthening/repair technique through the introduction of a new RC layer to an existing slab. Six RC slabs, composed of twelve cantilever and six interior spans, were tested under monotonic transverse loading. The behaviour of statically determinate cantilever spans and indeterminate interior spans was examined by comparing the test results of these specimens to the results of reference slabs, in which the existing and additional layers were cast monolithically. The influences of recovering the permanent slab deformation before repair and the spacing of the shear connectors between the existing and additional layers were investigated. The tests indicated that recovering the permanent deformations of a slab before repair substantially reduces its rigidity while having little influence on the ultimate load. Furthermore, debonding of the reinforcement was observed to considerably decrease the load capacities and rigidities of the slabs.
  • [ X ]
    Öğe
    Retrofit of Non-Ductile RC Frames with Precast Concrete (PC) Wall Panels
    (Multi-Science Publ Co Ltd, 2011) Baran, Mehmet; Tankut, Tugrul
    An economic, structurally effective and practically applicable strengthening method had been developed for reinforced concrete (RC) framed buildings. This study presents the test results on strengthening of deficient RC frames by using high strength precast concrete (PC) panels. The idea of the method is to convert the existing hollow brick infill wall into a load carrying system by bonding PC panels on to the plastered hollow brick infills. For this purpose, six (two reference and four strengthened) one-third scale, one bay, two storey deficient RC frames were tested under reversed-cyclic lateral loads. Test frames were designed and constructed with common deficiencies observed in practice. Panels having two different shapes were used as strengthening agencies. Test results showed that both strength and stiffness of the test frames were significantly improved by the introduction of PC panels. Experimental results were compared with the analytical approaches suggested by the authors.
  • Küçük Resim
    Öğe
    Seismic Strengthening with Precast Concrete Panels - Theoretical Approach
    (Turkish Chamber Civil Engineers, 2010) Baran, Mehmet; Canbay, Erdem; Tankut, Tugrul
    An economical, structurally effective and practically applicable seismic retrofitting technique has been developed on the basis of the principle of strengthening the existing hollow brick infill walls by using high strength precast concrete panels. The technique would not require evacuation of the building and would be applicable without causing much disturbance to the occupant. For this purpose, a total of eighteen reinforced concrete frames with hollow brick infill walls were tested under reversed cyclic lateral loading simulating earthquake. The specimens were strengthened by using six different types of precast concrete panels. In the present study, hollow brick infill walls strengthened by using high strength precast concrete panels were modeled once by means of equivalent diagonal struts and once as monolithic walls having an equivalent thickness. The experimental results were compared with the analytical results of the two approaches mentioned.
  • Küçük Resim
    Öğe
    Strengthening of deficient RC frames with high strength concrete panels: an experimental study
    (Techno-Press, 2011) Baran, Mehmet; Susoy, Melih; Tankut, Tugrul
    An economic, structurally effective and practically applicable strengthening technique was developed for reinforced concrete (RC) framed buildings. The idea of the technique is to convert the existing hollow brick infill wall into a load carrying system acting as a cast-in-place RC infill wall by bonding relatively thin high strength precast concrete PC panels to the plastered hollow brick infill. For this purpose, a total of eight one-third scale, one bay, one story frames were tested under reversed-cyclic lateral loads. Test frames were designed and constructed with common deficiencies observed in practice. Four different panel types were used for strengthening. Test results showed that both strength and stiffness of the frames were significantly improved by the introduction of PC panels. Experimental results were compared with the analytical approaches suggested by the authors.