Numerical simulation and ultimate deformation model of FRP-plated RC beams using H-type end anchorage

2021 ◽  
Vol 305 ◽  
pp. 124314
Author(s):  
Debo Zhao ◽  
Zenghui Ye ◽  
Yingwu Zhou ◽  
Xiaoqing Zhou ◽  
Lili Sui
Keyword(s):  
Numerical Simulation ◽  
Deformation Model ◽  
Rc Beams ◽  
Ultimate Deformation

Numerical simulation of shear-strengthened RC beams

2013 ◽  
Vol 46 ◽  
pp. 359-374 ◽  
Author(s):  
Denise Ferreira ◽  
Jesús Bairán ◽  
Antonio Marí
Keyword(s):  
Numerical Simulation ◽  
Rc Beams

scholarly journals Performance of Concrete Beams Reinforced with Various Ratios of Hybrid GFRP/Steel Bars

2020 ◽  
Vol 6 (9) ◽  
pp. 1652-1669
Author(s):  
Phan Duy Nguyen ◽  
Vu Hiep Dang ◽  
Ngoc Anh Vu
Keyword(s):  
Failure Modes ◽  
Concrete Beams ◽  
Peak Load ◽  
Flexural Behavior ◽  
Experimental Program ◽  
Deformation Model ◽  
Rc Beams ◽  
Linear Deformation ◽  
Crack Patterns ◽  
Steel Bars

This paper aims to study the flexural behavior of concrete beams reinforced with hybrid combinations of GFRP/steel bars. To this purpose an experimental program was carried out on four concrete beams reinforced with Glass Fiber Reinforced Polymer (GFRP) and twelve hybrid GFRP/steel Reinforced Concrete (RC) beams. Flexural behavior of the tested beams such as stages of response, failure modes, crack patterns, stiffness, toughness and ductility were analyzed. The experimental results showed that depending on GFRP/steel reinforcement configurations, the behavior of hybrid GFRP/steel RC beams undergoes three or four stages, namely: pre-cracking stage; after concrete cracking and before steel yielding; post-yield stage of the steel bar until peak load and failure stage. Totally six failure modes of hybrid RC beams are reported depending on reinforcement rations and configuration. The effect of reinforcement configuration and ratio of GFRP to steel (ρg) on the crack patterns, stiffness, ductility and toughness of hybrid RC beams are significant. Based on the non-linear deformation model, an analytical model has been developed and validated to determine the steel yielding moment and ultimate moment of hybrid GFRP/steel RC beams. It could be seen that the experimental values were in good agreement with the predicted values.

Numerical Simulation for Failure Modes of Reinforced Concrete Beams under Blast Loading

2010 ◽  
Vol 163-167 ◽  
pp. 1359-1363
Author(s):  
Xiu Hua Zhang ◽  
Yan Yan Wu ◽  
Jun Wang
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Failure Modes ◽  
Kinematic Hardening ◽  
Blast Loading ◽  
Material Model ◽  
Reinforced Concrete Beams ◽  
Dynamic Responses ◽  
Rc Beams ◽  
Tnt Equivalent

The reinforced concrete (RC) beams have three failure modes using large-scale finite element procedure LS-DYNA to simulate dynamic responses and failure modes of RC beams under blast loading. Holmquist-Johnson-Cook material model was used in concrete, the damage and strain rate effects were considered the kinematic hardening plasticity material model was used in reinforcing bars. With different rebar ratios and charges of weight TNT equivalent and stand-off distance were investigated and discussed. The numerical simulation can predict responses and flexure, flexure-shear and direct shear of the RC beams under different blast loading. The influence of the several factors have been identified and provided a theoretical basis for blast resistant design and retrofitting of the RC beam.

Research on Mechanical Behavior of Reinforced RC Beams Strengthened with Anti-Arch Method

2011 ◽  
Vol 94-96 ◽  
pp. 1395-1401
Author(s):  
Dai Guo Chen ◽  
Yong Yao ◽  
Yong Jun Deng
Keyword(s):  
Numerical Simulation ◽  
Mechanical Property ◽  
Carrying Capacity ◽  
Crack Width ◽  
Concrete Beams ◽  
High Strength ◽  
Reinforced Concrete Beams ◽  
Rc Beam ◽  
Rc Beams

We analyze the mechanical property of strengthening RC beam by using the method of arch pasting with carbon fiber and directly pasting CFRP through numerical simulation and model test. It explains that strengthening RC girder by using the method of arch can solve the influence of beam's loading by the second time which exists in the method of pasting CFRP in strengthening reinforced concrete beams and it can improve the girder's load when it cracks and the carrying capacity; decreasing the deflection deformation and crack width and gap when the girder carries load; It can make the most use of the character of carbon fiber's high strength. The results play very important role of guiding to engineering.

scholarly journals The Resistance of Ship Web Girders in Collision and Grounding

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Zhenguo Gao ◽  
Song Yang ◽  
Zhiqiang Hu
Keyword(s):  
Numerical Simulation ◽  
Analytical Method ◽  
Previous Experiment ◽  
Deformation Model ◽  
Deformation Characteristics ◽  
Concentrated Load ◽  
Reliable Assessment ◽  
Comparison Results ◽  
Simulation Based ◽  
Simulation Results

Ship web girders play an important role in ship structure performance during collision and grounding accidents. The behavior of web girders subjected to in-plane concentrated load is investigated by numerical simulation and theoretical analysis in this paper. A numerical simulation based on previous experiment is conducted to give insight to the deformation mechanism of crushing web girders. Some new important deformation characteristics are observed through the simulation results. A new theoretical deformation model is proposed featured with these deformation characteristics, and a simplified analytical method for predicting the instantaneous and mean resistances of crushing web girders is proposed. The proposed method is verified by two previous experiments and a series of numerical simulations. The agreement between the solutions by the proposed method and the experiment results is good. The comparison results between the proposed analytical method and numerical simulation results are satisfactory for most cases. The proposed analytical method will contribute to the establishment of an efficient method for fast and reliable assessment of the outcome of ship accidental collisions and grounding events.

Numerical simulation of the shear capacity of bolted side-plated RC beams

2018 ◽  
Vol 171 ◽  
pp. 373-384 ◽  
Author(s):  
L.Z. Li ◽  
Z.L. Wu ◽  
J.T. Yu ◽  
X. Wang ◽  
J.X. Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Shear Capacity ◽  
Rc Beams
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