Confinement Effectiveness of CFRP in Axial Members under Various Loading Conditions

Date

2013-07-17

Author

ERDİL, BARIŞ
Akyüz, Uğurhan
Yaman, İsmail Özgür

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

225
views

0
downloads

In this study, parameters affecting the mechanical properties of FRP-confined cylindrical and prismatic concrete columns were studied via experimental data, which were collected after an extensive literature review. The parameters were summarized as unconfined concrete strength, FRP thickness, cylinder diameter, overlap length of FRP, sustained stress level, heating-cooling effect and corner radius in prismatic specimens. Considering these parameters the confinement effectiveness is established analytically in the light of ultimate strength values obtained from the test results available in the literature. No steel reinforcement is taken into account because the main aim is to capture the behavior of FRP-confinement only. The analytical results revealed that unconfined concrete strength, FRP thickness, cross-sectional dimension of the specimen are the main parameters controlling the confinement effectiveness in cylindrical specimens. In addition to these parameters corner radius and sustained stress level are found to be significant in prismatic specimens.

Subject Keywords

CFRP, Confinement, Concrete, Column, Strength

URI

https://hdl.handle.net/11511/44716

Collections

Department of Civil Engineering, Book / Book chapter

Suggestions

OpenMETU
Core

Joint shear strength prediction for reinforced concrete beam-to-column connections Unal, Mehmet; Burak Bakır, Burcu (2012-02-10) In this analytical study numerous prior experimental studies on reinforced concrete beam-to-column connections subjected to cyclic loading are investigated and a database of geometric properties, material strengths, configuration details and test results of subassemblies is established. Considering previous experimental research and employing statistical correlation method, parameters affecting joint shear capacity are determined. Afterwards, an equation to predict the joint shear strength is formed based o...
Numerical investigation of coupled heat and mass transfer inside the adsorbent bed of an adsorption cooling unit Solmus, Ismail; Rees, D. Andrew S.; Yamali, Cemil; Baker, Derek Keıth; KAFTANOĞLU, BİLGİN (2012-05-01) In this study, the influence of several design parameters on the transient distributions of temperature, pressure and amount adsorbed in the radial direction of a cylindrical adsorbent bed of an adsorption cooling unit using silica gel/water have been investigated numerically. For this purpose, a transient one-dimensional local thermal non-equilibrium model that accounts for both internal and external mass transfer resistances has been developed using the local volume averaging method. For the conditions in...
Design Principles for the Acceptor Units in Donor-Acceptor Conjugated Polymers Haciefendioglu, Tugba; Yıldırım, Erol (2022-10-01) More than 50 different acceptor units from the experimental literature have been modeled, analyzed, and compared by using the computationally extracted data from the density functional theory (DFT) perspective for tetramer structures in the form of (D-B-A-B)4 (D, donor; A, acceptor; B, bridge) with fixed donor and bridge units. Comparison of dihedral angle between acceptor, donor, and bridge units, bond order, and hyperpolarizability reveals that these three structural properties have a dominant effect on t...
Local Structure and Chemistry in Marginal Forming Alloys Ulucan, Tolga Han; Kalay, Eren; Department of Metallurgical and Materials Engineering (2020-9) In this thesis structural and corresponding mechanical properties of marginal metallic glass-forming alloys were studied. Al90Tb10 system exhibits unique devitrification features due to their exceptional primary crystallization products of Al nanocrystals with populations reaching up to 1024 m−3 . A full agreement on how this abnormal nucleation event occurs is still lacking. Our previous studies on Al-RE (RE: rareearth element) have shown that two different amorphous precursors prepared using melt-sp...
Dynamic mechanical analysis of provisional resin materials reinforced by metal oxides Korkmaz, T; Doan, A; Usanmaz, Ali (2005-01-01) In this study, several provisional resin materials were investigated by dynamic mechanical analysis (DMA). The materials were autopolymerized PMMA and PEMA, light cured PMMA. Autopolymerized PMMA has the highest T-g (131 degrees C) compared to that of the autopolymerized PEMA (102 degrees C) and light cured PMMA (120 degrees C). The storage moduli for autopolymerized PMMA, autopolymerized PEMA and light cured PMMA are 2.9, 1.8 and 2.3 GPa, respectively. The loss moduli of the same resins are 330, 300 and 35...

Citation Formats

B. ERDİL, U. Akyüz, and İ. Ö. Yaman, Confinement Effectiveness of CFRP in Axial Members under Various Loading Conditions. 2013.