scholarly journals Flexural behaviour of RC beams strengthened with prestressed steel wire ropes polymer mortar composite

2021 ◽  
Author(s):  
Zhan-Qiang Liu ◽  
Zi-Xiong Guo ◽  
Yong Ye
Keyword(s):  
Steel Wire ◽  
Rc Beams ◽  
Flexural Behaviour ◽  
Wire Ropes ◽  
Polymer Mortar

Analysis the Flexural Properties of RC Beams Strengthened by High Strength Steel Wire Mesh and Polymer Mortar Using the Finite Element

2013 ◽  
Vol 444-445 ◽  
pp. 1067-1071
Author(s):  
Li Ping Sun ◽  
Zheng Liu ◽  
Yan Zi Liu
Keyword(s):  
High Strength Steel ◽  
Steel Wire ◽  
High Strength ◽  
Wire Mesh ◽  
Flexural Properties ◽  
Rc Beams ◽  
Reinforced Beams ◽  
Practical Engineering ◽  
Polymer Mortar ◽  
Steel Wire Mesh

The high strength steel wire mesh and polymer mortar reinforcement technology has the advantages of high strength, high temperature resistance,corrosion,resistant, etc. In this paper,we analysis the flexural properties of RC beams strengthened by it using ANSYS.To bear the same moment in the same area of the reinforcement steel strand, and then get effect of different span and different reinforcement methods (comparative beam, direct reinforced beams,and secondary load of reinforced beams) on flexural load-carrying capacity and deflection, then compare and analysis,and draws the conclusion which can provide reference for practical engineering.

Research on Shearing Performance of RC Beams Strengthened with Steel Wire-Polymer Mortar

2012 ◽  
Vol 166-169 ◽  
pp. 1702-1708 ◽  
Author(s):  
Chi Yun Zhao ◽  
Shi Min Huang ◽  
Qiu Lai Yao ◽  
Ya Jing Chen
Keyword(s):  
Steel Wire ◽  
Composite Model ◽  
Rc Beams ◽  
Test Results ◽  
Ultimate Capacity ◽  
Ansys Analysis ◽  
Steel Bars ◽  
Polymer Mortar ◽  
Analysis Models ◽  
Good Agreement

This paper presents the results of the experimental investigation on the shearing performance of beams strengthened with steel wire-polymer mortar. The numerical results by finite element method are compared with experimental results. A total of three rectangular doubly RC beams were constructed, strengthened and tested to failure. A new convenient method to measure elongation of steel wire was proposed. Two models, named separated model and composite model respectively in software ANSYS, are used to analyze the beams. In separated model, strains of longitudinal steel bars and stirrups are in good agreement with the test results, and strains of longitudinal steel bars by composite model are also in good agreement with the test results, while stirrups strains are not, but both of steel wire deformations obtained by ANSYS analysis models are slightly different with tests results. Strengthened beams increased ultimate capacity, delayed the crack occurs and crack development. More closer and disorder cracks distribute in the strengthened beams than the unstrengthened beam. Cracks in beams by ANSYS analysis models, comparing with test results, are not very obvious.

Flexural Behavior of Reinforced Concrete Beams Strengthened with Steel Wire Mesh and Polymer Mortar

2011 ◽  
Vol 250-253 ◽  
pp. 1717-1722
Author(s):  
Yuan Pan
Keyword(s):  
Reinforced Concrete ◽  
Steel Wire ◽  
Reinforced Concrete Beams ◽  
Wire Mesh ◽  
Bending Test ◽  
New Technique ◽  
Flexural Behaviour ◽  
External Reinforcement ◽  
Polymer Mortar ◽  
Steel Wire Mesh

The application of steel wire mesh and polymer mortar composites to the surface of reinforced concrete (RC) members as external reinforcement is a promising and recent new technique for strengthening and rehabilitating damaged concrete elements. This new technique has many advantages of resistance to fire, corrosion, ageing, and rapid construction speed. Test results indicated that the overall flexural behaviour of strengthened beam can be divided into three stages: precracking stage, cracking stage, and failure stage. Furthermore, a moment deflection model is developed based on the assumption of plane sections remains plane under load. The flexural behaviour of the strengthened specimens subjected to a four-point bending test was addressed by using transformed section approach. The suggested model was verified using the test data of 6 strengthened beams, and good agreement between experiment and prediction values is achieved.

Experimental Research for Flexibility Properties of RC Beams Strengthened with Steel Wire-Polymer Mortar

2012 ◽  
Vol 238 ◽  
pp. 185-189
Author(s):  
Chi Yun Zhao ◽  
Shi Min Huang ◽  
Qiu Lai Yao ◽  
Ya Jing Chen
Keyword(s):  
Experimental Investigation ◽  
Steel Wire ◽  
Accurate Method ◽  
Rc Beams ◽  
Interfacial Bond ◽  
Interfacial Bond Strength ◽  
Flexural Performance ◽  
Steel Wires ◽  
Bonding Effect ◽  
Polymer Mortar

This paper presents the results of the experimental investigation on the flexural performance of beams strengthened with steel wire-polymer mortar. A total of five rectangular doubly RC beams were constructed and tested to failure. The test variables were numbers of reinforcement layers and configuration. A new accurate method to measure elongation of steel wire was proposed. Then the interfacial bond strength between concrete and polymer mortar was tested. The failures of the specimens were all bending failures and polymer mortar layer debonded from beam was not occurred. Only a few wires were pulled off in failure. The polymer mortar and concrete has a better bonding effect. Steel wires play the more effective tensile roles of themselves. After strengthened, the RC beams improve their bending bearing capacity and bending stiffness, delay the cracks occur and crack development.

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