A numerical model of fully grouted bolts considering the tri-linear shear bond–slip model

2016 ◽  
Vol 54 ◽  
pp. 73-80 ◽  
Author(s):  
Shuqi Ma ◽  
Zhiye Zhao ◽  
Wen Nie ◽  
Yilin Gui
Keyword(s):  
Numerical Model ◽  
Slip Model ◽  
Bond Slip ◽  
Linear Shear ◽  
Grouted Bolts

A unified bond-slip model for the interface between FRP and steel

2021 ◽  
pp. 109380
Author(s):  
Cheng Jiang ◽  
Qian-Qian Yu ◽  
Xiang-Lin Gu
Keyword(s):  
Slip Model ◽  
Bond Slip

Numerical calculation of crack width in prestressed concrete beams with bond-slip effect

2019 ◽  
Vol 15 (2) ◽  
pp. 523-536
Author(s):  
Jinliang Liu ◽  
Yanmin Jia ◽  
Guanhua Zhang ◽  
Jiawei Wang
Keyword(s):  
Numerical Calculation ◽  
Numerical Model ◽  
Prestressed Concrete ◽  
Calculation Method ◽  
Crack Width ◽  
Calculation Model ◽  
Content Type ◽  
Bond Slip ◽  
Stress Calculation ◽  
Bonding Performance

Purpose The calculation of the crack width is necessary for the design of prestressed concrete (PC) members. The purpose of this paper is to develop a numerical model based on the bond-slip theory to calculate the crack width in PC beams. Design/methodology/approach Stress calculation method for common reinforcement after beam crack has occurred depends on the difference in the bonding performance between prestressed reinforcement and common reinforcement. A numerical calculation model for determining the crack width in PC beams is developed based on the bond-slip theory, and verified using experimental data. The calculation values obtained by the proposed numerical model and code formulas are compared, and the applicability of the numerical model is evaluated. Findings The theoretical analysis and experimental results verified that the crack width of PC members calculated based on the bond-slip theory in this study is reasonable. Furthermore, the stress calculation method for the common reinforcement is verified. Compared with the model calculation results obtained in this study, the results obtained from code formulas are more conservative. Originality/value The numerical calculation model for crack width proposed in this study can be used by engineers as a reference for calculating the crack width in PC beams to ensure the durability of the PC member.

scholarly journals Experimental Study on Bond-Slip Behavior of Bamboo Bolt-Modified Slurry Interface under Pull-Out Load

2018 ◽  
Vol 2018 ◽  
pp. 1-23 ◽  
Author(s):  
Wei Lu ◽  
Dong Zhao ◽  
Xiao-fei Mao ◽  
Yu Ai
Keyword(s):  
Axial Direction ◽  
Impact Factors ◽  
Slip Model ◽  
Distribution Law ◽  
Bond Slip ◽  
Pull Out ◽  
Control Interface ◽  
Bolt Diameter ◽  
Interface Bond

This paper presents an analysis of bamboo bolt-modified slurry interfaces based on 26 in situ axial pull-out tests intended to highlight the mechanical behavior of interface under a fracture mode. Three impact factors are analyzed: anchorage length, bolt diameter, and bolt hole diameter, using the same materials of bamboo and modified slurry. The result shows that the interface between the bamboo bolt and anchoring agent is the control interface of an anchorage system, and the local behavior of the interface involves four stages: elastic, soften, friction, and decoupling. Distribution law and change trend of slippage, stress, and strain of anchoring interface along with the axial direction of an anchor bolt were analyzed. The result shows that there is effective anchoring length limit in this kind of interface, and that the complete decoupling phenomenon should not be neglected. Through a comparative analysis of the existing bond-slip model and interface bond-slip curve, and considering the correspondence of the strain-slip curve and trilinear bond-slip model simultaneously, a modified trilinear bond-slip model has been proposed. The friction section of this model is limited, and shearing stress in the complete decoupling section is zero.

Crack Calculation of Beams Reinforced with FRP Bars Based on Linear Bond-Slip Model

2014 ◽  
Vol 919-921 ◽  
pp. 1377-1380
Author(s):  
Xiao Dong Li ◽  
Hao Chen Feng ◽  
Wei Ning Yuan
Keyword(s):  
Stress Distribution ◽  
Crack Width ◽  
Bond Stress ◽  
Distribution Model ◽  
Slip Model ◽  
Bond Slip ◽  
Frp Bars

This paper mainly gets a equation of crack width calculation. To get the result, the lineared bond-slip model between FRP bars and concrete is used, combining with the bond stress distribution model which is found by You Chunan. Finally, the value of this paper is compared with the value of ACI440.1R-06 and JSCE code, which prove the result is right.

A temperature-dependent bond-slip model for CFRP-to-steel joints

2019 ◽  
Vol 217 ◽  
pp. 186-205 ◽  
Author(s):  
Hugo C. Biscaia ◽  
Pedro Ribeiro
Keyword(s):  
Slip Model ◽  
Temperature Dependent ◽  
Bond Slip ◽  
Steel Joints

Bond slip model of FRP-to-concrete surfaces

2014 ◽  
Vol 1 (4) ◽  
pp. 332
Author(s):  
M.S. Mohd Amirul ◽  
M.R. Raizal Saifulnaz ◽  
N.A. Farah ◽  
S. Norazizi
Keyword(s):  
Slip Model ◽  
Bond Slip
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