Analysis of acoustic emission cumulative signal strength of steel fibre reinforced concrete (SFRC) beams strengthened with carbon fibre reinforced polymer (CFRP)

2017 ◽  
Author(s):  
Z. Abdul Hakeem ◽  
M. N. Noorsuhada ◽  
I. Azmi ◽  
M. S. Noor Syafeekha ◽  
M. S. Soffian Noor
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Carbon Fibre ◽  
Steel Fibre ◽  
Signal Strength ◽  
Fibre Reinforced Concrete ◽  
Steel Fibre Reinforced Concrete ◽  
Reinforced Polymer ◽  
Carbon Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer

scholarly journals Seismic behaviour of precast sandwich wall panels of steel fibre reinforced concrete layers and fibre reinforced polymer connectors

2021 ◽  
Vol 237 ◽  
pp. 112149
Author(s):  
Rodrigo Lameiras ◽  
Joaquim A.O. Barros ◽  
Isabel B. Valente ◽  
Elisa Poletti ◽  
Matilde Azevedo ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Seismic Behaviour ◽  
Steel Fibre Reinforced Concrete ◽  
Reinforced Polymer ◽  
Wall Panels ◽  
Fibre Reinforced Polymer ◽  
Sandwich Wall

Hybrid simulation of a carbon fibre–reinforced polymer-strengthened continuous reinforced concrete girder bridge

2017 ◽  
Vol 20 (11) ◽  
pp. 1658-1670 ◽  
Author(s):  
Shizhu Tian ◽  
Hongxing Jia ◽  
Yuanzheng Lin
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fibre ◽  
Hybrid Simulation ◽  
Simulation System ◽  
Reinforced Polymer ◽  
Carbon Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Girder Bridge ◽  
Concrete Girder ◽  
Hybrid Simulations

The behaviour of bridge columns strengthened using carbon fibre–reinforced polymer composites has been studied extensively. However, few investigations have been conducted regarding the influence of carbon fibre–reinforced polymer-strengthened columns on the seismic behaviour of reinforced concrete continuous girder bridges. This article details the hybrid simulations of a continuous reinforced concrete girder bridge whose columns are strengthened by carbon fibre–reinforced polymer jackets. In the hybrid simulations, one ductile column is selected as the experimental element, which is represented by a 1/2.5-scale specimen, and the remaining bridge parts are simultaneously modelled in OpenSees (the Open System for Earthquake Engineering Simulation). After combining the experimental element and the numerical substructure, the hybrid analysis model is developed with the established hybrid simulation system. The displacements of the bridge and the lateral force–displacement response of the experimental element in hybrid simulation are obtained. Compared with the results of numerical simulation, the stability and accuracy of the established hybrid simulation system are demonstrated. Meanwhile, the comparative hybrid simulation results of the as-built bridge and the carbon fibre–reinforced polymer-strengthened bridge also prove the effectiveness of the carbon fibre–reinforced polymer jackets’ confinement in the continuous reinforced concrete girder bridge.

Strengthening with Prestressed CFRP Strips of Box Girders on the Chofu Bridge, Japan

2010 ◽  
pp. 21-34
Author(s):  
Masami Fujita ◽  
Terumitsu Takahashi ◽  
Kazuhiro Kuzume ◽  
Tamon Ueda ◽  
Akira Kobayashi
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fibre ◽  
Box Girders ◽  
Strip Method ◽  
Reinforced Polymer ◽  
Before And After ◽  
Carbon Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Load Tests ◽  
Cfrp Strip

<p>Reinforced concrete (RC) box girders of the Chofu Bridge had been strengthened using tensioned carbon fibre reinforced polymer (CFRP) strip method. Before and after the CFRP application, on-site load tests of the bridge were conducted using a 45 t weight vehicle.</p>

Acoustic Emission Signals of Pull-Off Test for Concrete Slab Strengthened with CFRP Using Various Surface Preparations

2019 ◽  
Vol 821 ◽  
pp. 479-485
Author(s):  
Md Nor Noorsuhada ◽  
Mat N. Soffian Noor ◽  
A.M. Siti Norfahanim ◽  
M.H. Mohd Hisbany ◽  
M. Norfaridah
Keyword(s):  
Acoustic Emission ◽  
Concrete Slab ◽  
Surface Preparation ◽  
Signal Strength ◽  
Acoustic Emission Technique ◽  
Normal Surface ◽  
Reinforced Polymer ◽  
Carbon Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Concrete Interface

This study investigates the acoustic emission signals of concrete slab strengthened with carbon fibre reinforced polymer (CFRP) under pull-off test. Three types of surface preparations were prepared namely without surface preparation, normal surface preparation and boring surface preparation. The slabs were then tested under pull-off test in conjunction with acoustic emission technique. The pull-off strength, acoustic signal strength, amplitude, duration and rise time were analysed and discussed. It was found that the boring surface preparation produced the highest pull-off strength compared to other surface preparations, indicating good bonding between the CFRP and the concrete interface. This study is useful in identifying the bonding between CFRP and concrete using acoustic emission technique.

Sign in / Sign up

Export Citation Format

Share Document