Structural Behavior of Fiber-Reinforced Polymer-Autoclaved Aerated Concrete Panels

2007 ◽  
Vol 104 (6) ◽  
Keyword(s):  
Fiber Reinforced Polymer ◽  
Structural Behavior ◽  
Fiber Reinforced ◽  
Concrete Panels ◽  
Autoclaved Aerated Concrete ◽  
Reinforced Polymer ◽  
Aerated Concrete

Improving the impact resistance of concrete panels by glass fiber reinforced polymer sheets

2017 ◽  
Vol 8 (2) ◽  
pp. 304-320 ◽  
Author(s):  
Mohamed MA Abdel-Kader ◽  
Ahmed Fouda
Keyword(s):  
Glass Fiber ◽  
Plain Concrete ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Concrete Panels ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Polymer Sheets ◽  
The Impact

In this article, the response of 12 plain concrete specimens to an impact of hard projectiles was examined in an experimental study. The tests were planned with an aim to observe the influence of using glass fiber reinforced polymer sheets to strengthen plain concrete panels on the performance of concrete under this type of loading. The main findings show that strengthening plain concrete panels with glass fiber reinforced polymer sheets showed satisfactory performance under the impact load; the glass fiber reinforced polymer sheets can be used for strengthening or upgrading concrete structures to improve their resistance against impact. Also, the location of the glass fiber reinforced polymer sheet affects the front and rear face craters.

scholarly journals Numerical Study on Seismic Behavior of Underwater Bridge Columns Strengthened with Prestressed Precast Concrete Panels and Fiber-Reinforced Polymer Reinforcements

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Yu Tang ◽  
Gang Wu ◽  
Zeyang Sun
Keyword(s):  
Seismic Performance ◽  
Precast Concrete ◽  
Expansion Ratio ◽  
Bridge Columns ◽  
Modeling Method ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Residual Displacement ◽  
Concrete Panels ◽  
Reinforced Polymer

The seismic performance of the bridge column, such as pier or pile, is a time-dependent property which may decrease in resistance to the deterioration or natural hazards along the structure’s service life. The most effective strengthened method for degraded bridge columns is the jacketing method, which has been widely developed and investigated through numerous studies since the 1980s. This paper presented a modeling method, as well as a comprehensive parametric study, on seismic performance of bridge columns strengthened by a newly developed strengthening method with prestressed precast concrete panels and fiber-reinforced polymer reinforcements (PPCP-FRP). A modeling method of bridge columns strengthened with PPCP-FRP was first presented and validated with test results. The influence of design parameters, such as axial load ratio, equivalent FRP reinforcement ratio rate (EQFRR), expansion ratio, and shear span ratio of strengthened columns, were then further evaluated in terms of lateral load capacity, ductility, energy dissipation, lateral stiffness, and residual displacement of strengthened columns. The peak load of strengthened columns increases with the increasing of EQFRR due to the unique failure model of strengthened columns characterized by the fracture of FRP bars. The initial stiffness of strengthened columns increased by 300% with the increasing of expansion ratio by 45%, and a stable postyield stiffness stage was obtained by most strengthened columns in analysis. The residual displacement of strengthened columns decreases rapidly with the increasing of EQFRR, which indicated that a better repairability could be achieved by the strengthened column with a relatively high EQFRR.

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