Bond Strength of Lap Splices in FRP and TRM Confined Concrete: Behavior and Design

2013 ◽  
pp. 203-219
Author(s):  
Dionysios Bournas ◽  
Thanasis Triantafillou
Keyword(s):  
Bond Strength ◽  
Confined Concrete ◽  
Lap Splices

A study on the bond strength of tension lap splices in self compacting concrete

2009 ◽  
Vol 43 (8) ◽  
pp. 1113-1121 ◽  
Author(s):  
K. Pandurangan ◽  
S. Kothandaraman ◽  
D. Sreedaran
Keyword(s):  
Bond Strength ◽  
Self Compacting Concrete ◽  
Lap Splices

Role of casting position on bond strength of confined tension lap splices in silica fume concrete

2000 ◽  
Vol 33 (9) ◽  
pp. 584-593 ◽  
Author(s):  
B. S. Hamad ◽  
Z. S. Seferian
Keyword(s):  
Bond Strength ◽  
Silica Fume ◽  
Lap Splices

scholarly journals Effectiveness of Various Techniques Using FRP for the Strengthening of R. C. Beams with Tension Lap Splices

2019 ◽  
pp. 1-18
Author(s):  
Mohamed H. Makhlouf
Keyword(s):  
Bond Strength ◽  
Cross Section ◽  
Epoxy Adhesive ◽  
Experimental Program ◽  
Near Surface ◽  
Lap Splices ◽  
Lap Splice ◽  
Flexural Performance ◽  
Externally Bonded ◽  
Near Surface Mounted

This paper presents an experimental program conducted to investigate the flexural performance of RC beams with tension reinforcement lap splice strengthened using externally bonded FRP different techniques in splice region. The specimens were reinforced on the tension side with four deformed bars spliced at mid span. The tested beams are of 3200 mm total length and 250*120 mm cross section, tested in positive bending. The considered parameters were splice length, type of FRP (glass or carbon), strengthening techniques in splice region (externally confine strips around cross section, Near Surface Mounted technique "NSM" stirrups, externally bonded sheets or bars on the tension face, number of GFRP strips layers (one layer, two layers, and three layers), and shape of NSM stirrups (Box or U shape). No additional anchorage mechanism or bonding methodology was applied for the FRP strips on the concrete except the epoxy adhesive. The effect of these factors on the failure of modes, the ultimate load, the bond strength and that the ductility were investigated. The results indicated that all applied strengthening techniques were efficient in improving the bond strength of the lap splices, the ductility, and the load-deflection behavior of the tested beams, especially when strips were installed over the splice region. This study approved that NSM technique gave more prominent simplicity of employ.

scholarly journals Prediction of Analytical Bond Strength of Lap Splices in Tension

2016 ◽  
Author(s):  
Appa Rao Gangolu ◽  
Priyanka Reddy S. ◽  
Eligehausen Rolf
Keyword(s):  
Bond Strength ◽  
Lap Splices

scholarly journals Bond strength of short lap splices in RC beams confined with steel stirrups or external CFRP

2013 ◽  
Vol 48 (1-2) ◽  
pp. 277-293 ◽  
Author(s):  
Reyes Garcia ◽  
Yasser Helal ◽  
Kypros Pilakoutas ◽  
Maurizio Guadagnini
Keyword(s):  
Bond Strength ◽  
Rc Beams ◽  
Lap Splices

scholarly journals Experimental Research on Bond Behavior Between GFRP Bars and Stirrups-Confined Concrete

2019 ◽  
Vol 9 (7) ◽  
pp. 1340 ◽  
Author(s):  
Kui Gao ◽  
Zhao Li ◽  
Jiarui Zhang ◽  
Jianwei Tu ◽  
Xinping Li
Keyword(s):  
Bond Strength ◽  
Concrete Strength ◽  
Surface Characteristics ◽  
Confined Concrete ◽  
Bond Behavior ◽  
Gfrp Bars ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Gfrp Bar ◽  
Pullout Failure

This paper presents the results of a series of pullout tests that were performed on Glass-fiber-reinforced polymer (GFRP) bars embedded in concrete, while providing a detailed report on the influence of various variables that impinge upon bond behavior, such as the surface characteristics and diameter of the bars, concrete strength, as well as the confined effect of stirrups. The Bertero-Popov-Eligehausen (BPE) and Cosenza-Manfredi-Realfonzo (CMR) models analyzed the bond stress (τ)–slip (s) relationship between GFRP bar and stirrups-confined concrete. The tests results indicate that when the bond failure interface only occurs on the surface of a GFRP bar, the bond strength is not dependent upon the concrete strength. Moreover, the results indicate that in comparison to specimens without stirrups, their stirrup-containing counterparts are more prone to pullout failure with greater ductility and higher bond strength and corresponding slip. The BPE and CMR models are able to investigate the τ-s relationship between GFRP bars and the stirrups-confined concrete with accuracy. With the experimental data, the specific parameters in the models classified by surface characteristics have been suggested.

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