Bond quality survey of loaded rc beams with cfrp

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  • Frontiers Full Scale Reinforced Concrete Beam-Column

    This paper presents the results of an experimental campaign performed at the Laboratory of Materials and Structural Testing of the University of Salerno (Italy) in order to investigate the seismic performance of reinforced concrete (RC) beam-column joints strengthened with steel reinforced polymer (SRP) systems. With the aim to represent typical façade frames beam-column subassemblies ...

  • Bonding techniques for flexural strengthening of R.C.

    Bonding techniques for flexural strengthening of R.C. beams using CFRP laminates Author links open overlay panel Alaa Morsy a El Tony Mahmoud b 1 Show more ...

  • The Experiment Analysis of Bonding Performance

    To investigate the bonding performance of near-surface mounted (NSM) carbon fiber-reinforced polymer (CFRP) technique under different curing temperatures, a total of five test specimens strengthened with NSM CFRP strip were tested by direct pull-out methods.

  • A study of full-field debond behaviour and durability of

    Helmerich R, Maierhofer C, Röllig M, Arndt R, Vielhaber J. Bond quality survey of loaded RC beams with CFRP-plate repair using impulse-thermography. In: Proceedings of the third international conference on bridge maintenance, safety and management; 2006

  • Analytical and experimental study on repair effectiveness

    Free Online Library: Analytical and experimental study on repair effectiveness of CFRP sheets for RC beams.(Carbon Fibre Reinforced Polymer, Report) by "Journal of Civil Engineering and Management"; Engineering and manufacturing Concrete beams

  • Strength and Ductility of Concrete Beams Reinforced with Carbon

    Recently, Naaman et al. (2001, 1999) reported on a series of tests of RC beams strengthened in flexure or shear with carbon FRP and loaded under static or cyclic loads, at room or low temperatures. The test parameters included the amounts of

  • An The Vinh - SAHC: Structural Analysis of Monuments and

    v Tãm t¾t (Abstract) Gia c êng kÕt cÊu bª t«ng cèt thÐp b»ng sîi Cacbon tæng hîp ngµy nay trë thµnh mét ph ¬ng ph¸p ® îc ¸p dông réng r·I trªn thÕ giíi. Lý do chÝnh khiÐn sîi Cabon tæng hîp ®uîc ¸p dông réng r·I lµ do tÝnh kh thi trong viÖc ®¹t ® îc sù gia c ¬ng h ...

  • Effects of Gradually Anchored Prestressed CFRP Strips

    Garden and Hollaway 1998 used prestressed CFRP strips to strengthen RC beams of 1.0 and 4.5 m span with prestress levels ranging from 25 to 50% of the strip strength. Relatively little work has been carried out on the strengthening of internally prestressed

  • Strengthening of concrete structures with FRP sheets and

    Read "Strengthening of concrete structures with FRP sheets and plates, Structural Survey" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • FRP confinement of wall-like reinforced concrete columns

    The paper investigates FRP confinement of wall-like reinforced concrete columns in a systematic way, by examining a number of parameters not addressed before: the effectiveness of different types of anchors, the role of different cross section aspect ratios (3 and ...

  • Flexural Behaviour of Concrete Beams Reinforced With

    It was also found that the strut-and-tie method more accurately predicts the shear strength of steel-reinforced concrete short beams than it does for similar CFRP-reinforced beams and, thus, needs ...

  • BEHAVIOUR OF RC BEAMS PRESTRESSED WITH CFRP

    BEHAVIOUR OF RC BEAMS PRESTRESSED WITH CFRP LAMINATES SUBJECTED TO CYCLIC LOADING Wit Derkowski, Mateusz Surma Cracow University of Technology, Krakow, 31-155, Poland Abstract The strengthening of reinforced concrete structures is

  • Flexural behavior of preloaded reinforced concrete

    This study focuses on evaluating flexural behavior of preloaded reinforced concrete beams (RC) strengthened with pre-tensioned (prestressed) carbon fiber reinforced polymer (CFRP) laminates. A technique for tensioning and application of pre-tensioned CFRP ...

  • Bond behaviour of substandard splices in RC beams

    Highlights Bond splitting is studied by testing RC beams with substandard lap spliced bars. Steel stirrups or CFRP confinement, concrete cover and bar size were investigated. CFRP confinement enhances the lap bond strength by up to 65% over unconfined

  • Johannes Vielhaber Fachhochschule Potsdam, Potsdam

    Quality assurance for CFRP-plate-strengthening of RC-beams using impulse-thermography Conference Paper Mar 2007 Rosemarie Helmerich Mathias Röllig Christiane Maierhofer ...

  • Review of Anchorage Systems for Externally Bonded FRP

    Kotynia, R. (2005). Debonding failures of RC beams strengthened with externally bonded strips. In Proceedings of the International Symposium on Bond Behaviour of FRP in Structures (BBFS 2005). Hong Kong: International Institute for FRP in Construction, 79

  • Shear strengthening of reinforced concrete beams with Hybrid

    Shear strengthening of reinforced concrete beams with Hybrid Composite Plates (HCP) technique: Experimental research and analytical model Hadi Baghi1, Joaquim A. O. Barros2, Fatmir Menkulasi3 1 Post-doc, Civil Engineering and Construction Engineering Technology, Louisiana Tech

  • Bond Strength of FRP Laminates to Concrete: State-of-the-Art

    the same for different plate stiffness and bond lengths, supporting Fanning and Kellys results. From bond strength pull tests (Figure 1), the in-itial stress distribution was found to be quadratic with peak values occurring near the loaded end.

  • Bond-slip Model for HB-FRP Systems Bonded to

    In order to present the bond-slip model for HB-FRP systems,HB-FRP shear effect was divided into two parts:concrete wedge friction and dowel action of nails.The concrete failure mode under steel fasteners was assumed as wedge slip,the stress of wedge body was ...

  • MICROWAVE NDE OF RC BEAMS STRENGTHENED WITH CFRP

    MICROWAVE NDE OF RC BEAMS STRENGTHENED WITH CFRP LAMINATES CONTAINING SURFACE DEFECTS AND TESTED UNDER CYCLIC LOADING M. Ekenel1, V. Stephen2, J. J. Myers1, R. Zoughi2 1 Center of Infrastructure Engineering Studies (CIES), Department of Civil Engineering, University of Missouri ...

  • DISCUSSION ON THE FAILURE MECHANISM OF RC BEAMS STRENTHENED IN SHEAR BY EXTERNALLY BONDED CFRP

    DISCUSSION ON THE FAILURE MECHANISM OF RC BEAMS STRENTHENED IN SHEAR BY EXTERNALLY BONDED CFRP SHEETS A. Li, T. Assih, and Y. Delmas, Laboratory of Mechanics, Materials and Structures University of Reims Champagne Ardenne ...

  • A State-of-the-Art Review on Debonding Failures of FRP

    Beams 2 and 3 had one layer of CFRP, while Beams 4 and 5 had two layers of CFRP with staggered termination points. Beam 2 had a thin stiff resin layer, Beam 3 had a thicker flexible bond layer, Beam 4 had a thick flexible inner layer with a thin stiff outside layer, and Beam 5 had two thick flexible layers of CFRP.

  • Flexural behavior of continuous RC beams strengthened

    The main contribution of this paper is; Studying the flexural behavior of strengthened continuous RC beams using CFRP Sheets experimentally, Studying analytically the behavior of the strengthened beams under a wide range of different parameters by using FE

  • Flexural behavior of preloaded reinforced concrete beams

    This study focuses on evaluating flexural behavior of preloaded reinforced concrete beams (RC) strengthened with pre-tensioned (prestressed) carbon fiber reinforced polymer (CFRP) laminates. A technique for tensioning and application of pre-tensioned CFRP ...

  • Experimental and Numerical Study on Behavior of Externally

    strengthened with CFRP sheets. For flexural strengthening of RC beams, total eight beams were cast and tested over an effective span of 600 mm up to failure under static loads. Seven beams were strengthened with bonded CFRP fabric in single layer which are

  • Experimental and Numerical Study on Behavior of Externally Bonded RC Beams

    strengthened with CFRP sheets. For flexural strengthening of RC beams, total eight beams were cast and tested over an effective span of 600 mm up to failure under static loads. Seven beams were strengthened with bonded CFRP fabric in single layer which are

  • Quakewrap - Technical Papers and Reports on FRP

    Behavior Of Concrete Beams Strengthened With CFRP And Loaded In Fatigue During The Strengthening Process, Anders Carolin,Arvid Hejll,Björn. Täljsten, 2002 Behavior of FRP-Confined Concrete, Ching Au, 2001 Behavior of RC Beams Strengthened with