An experimental study of the bond behavior of twisted steel bars embedded in mortar cylinders and in the joints of masonry wallettes

2022 ◽  
Vol 316 ◽  
pp. 125795
Author(s):  
Cristina Gentilini ◽  
Francesco Finelli ◽  
Christian Carloni
Keyword(s):  
Experimental Study ◽  
Bond Behavior ◽  
Steel Bars

Experimental Study on Measuring the Steel Stress via FBG Sensors

2014 ◽  
Vol 548-549 ◽  
pp. 663-667 ◽  
Author(s):  
Hong Wei Lin ◽  
Yu Xi Zhao
Keyword(s):  
Experimental Study ◽  
Bond Stress ◽  
Strain Gauges ◽  
Bond Behavior ◽  
Fbg Sensor ◽  
Pullout Tests ◽  
Steel Bar ◽  
Steel Bars ◽  
Fbg Sensors

Studying the bond stress-slip relationship between concrete and corroded steel bar by cutting the steel bars into two separate parts and attaching electric strain gauges in the slots is no longer suitable. To overcome the disadvantages of electric strain gauges in the measuring the stress of corroded steel bars, this paper introduced a new kind of FBG sensor measuring steel stress. By calibration tests, the proportion coefficient between variation of wavelength and steel strain was confirmed as 0.0012. The bond behavior between concrete and steel bar was also investigated by performing pullout tests on beam end specimens.

Experimental Study on Effects of Fatigue Loading History on Bond Behavior between Steel Bars and Concrete

2016 ◽  
Vol 711 ◽  
pp. 673-680 ◽  
Author(s):  
Zhiwen Ye ◽  
Wei Ping Zhang ◽  
You Hu ◽  
Xiang Lin Gu
Keyword(s):  
Experimental Study ◽  
Bond Strength ◽  
Fatigue Loading ◽  
Critical Value ◽  
Concrete Cover ◽  
Repeated Loading ◽  
Loading History ◽  
Bond Behavior ◽  
Pull Out ◽  
Steel Bars

This paper presents an experimental investigation on the influence of fatigue loading history on bond behavior between steel bars and concrete. Reinforced concrete specimens were subjected to fatigue loadings with different amplitudes and cycles before undergoing eccentric pull-out tests. Tests revealed that all specimens failed with the splitting of the concrete cover. With increased loading cycles, the concrete in front of transverse ribs usually becomes denser at the beginning. Meanwhile, the initial bond stiffness and the bond strength increased, while the slip corresponding to the peak bond stress decreases. With the further increase of loading cycles, the bond strength begins to decrease after it reaches a critical value. This study determined that for specimens subjected to repeated loading with a larger amplitude, fewer cycles are needed for the bond strength to go up to the critical bond strength.

Experimental study of bond between steel bars and hybrid fibers reinforced concrete

2021 ◽  
Vol 275 ◽  
pp. 122176
Author(s):  
Fernanda Martins Cavalcante de Melo ◽  
Anna Cristina Araújo de Jesus Cruz ◽  
Leonardo Dantas de Souza Netto ◽  
Marcos Antônio de Souza Simplício
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Hybrid Fibers ◽  
Steel Bars

Experimental study on mechanical properties of corroded stainless-clad bimetallic steel bars

2021 ◽  
Vol 287 ◽  
pp. 123019
Author(s):  
Jianmin Hua ◽  
Fei Wang ◽  
Lepeng Huang ◽  
Neng Wang ◽  
Xuanyi Xue
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Steel Bars

Experimental study on bond behavior of corroded rebars coated by anti-corrosive materials in polymer cement mortar

2021 ◽  
Vol 300 ◽  
pp. 124228
Author(s):  
Mohammad Ridduhan L. Natino ◽  
Yizhou Yang ◽  
Hikaru Nakamura ◽  
Taito Miura
Keyword(s):  
Experimental Study ◽  
Cement Mortar ◽  
Bond Behavior

Experimental study on bond behavior between FRP and concrete

2004 ◽  
Vol 18 (10) ◽  
pp. 745-752 ◽  
Author(s):  
Jianzhuang Xiao ◽  
Jie Li ◽  
Quanfan Zha
Keyword(s):  
Experimental Study ◽  
Bond Behavior
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