Out-of-Plane Flexural Behavior of Reinforced Masonry Walls Strengthened With Near-Surface-Mounted Fiber-Reinforced Polymer

2018 ◽  
Vol 115 (4) ◽  
Author(s):  
Zuhair Al-Jaberi ◽  
John J. Myers ◽  
Mohamed A. ElGawady
Keyword(s):  
Fiber Reinforced Polymer ◽  
Flexural Behavior ◽  
Masonry Walls ◽  
Fiber Reinforced ◽  
Near Surface ◽  
Reinforced Polymer ◽  
Reinforced Masonry ◽  
Out Of Plane ◽  
Near Surface Mounted

Experimental Study on Flexural Behavior of Damaged Concrete Beams Strengthened with NSM-CFRP Strips

2012 ◽  
Vol 256-259 ◽  
pp. 1012-1016
Author(s):  
Gu Sheng Tong ◽  
Yong Xiang Wang ◽  
Qiu Lan Wu ◽  
Yong Sheng Liu
Keyword(s):  
Failure Modes ◽  
Fiber Reinforced Polymer ◽  
Flexural Behavior ◽  
Rc Beams ◽  
Near Surface ◽  
Damage Level ◽  
Reinforced Polymer ◽  
Near Surface Mounted ◽  
Strengthen Effect ◽  
Capacity Loading

In order to investigate the strengthen effect of different embedment lengths of the NSM strip on different damage levels. A series of tests were conducted on damaged reinforced concrete (RC) beams in flexure strengthened with near surface mounted (NSM) carbon- fiber-reinforced polymer (CFRP) strips, and initial cracking load, ultimate capacity, loading-deflection curves, and failure modes are examined and analyzed in the paper. The results showed that not only the initial cracking loads and ultimate capacities of the beams are significantly increased，but also the flexural stiffness of the beams in the yield and ultimate behavior stages are improved by using NSM-CFRP strips. The strengthen effect on lower damage level RC beams has no obvious difference with that on non-damaged RC beams. Anchoring of the strip end can increase the ultimate load capacities and decrease the ductility of RC beams. Debonding was found to be the primary failure mode in all cases.

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