scholarly journals Finite Element Analysis on Cracking Resistances of Recycled Aggregate Concrete Beams with Hybrid Fibers

2018 ◽  
Vol 423 ◽  
pp. 012121
Author(s):  
Jiajun Tang ◽  
Changchun Pei
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Concrete Beams ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Hybrid Fibers ◽  
Element Analysis ◽  
Aggregate Concrete

Microstructure and Finite Element Analysis of Recycled Aggregate Concrete

2013 ◽  
Vol 357-360 ◽  
pp. 1383-1388 ◽  
Author(s):  
Hai Feng Yang ◽  
Zhi Heng Deng ◽  
Yue Feng Hu
Keyword(s):  
Finite Element ◽  
Transition Zone ◽  
Weak Link ◽  
Recycled Aggregate Concrete ◽  
Interfacial Structure ◽  
Recycled Aggregate ◽  
Element Analysis ◽  
Aggregate Concrete ◽  
Finite Element Software ◽  
Structure And Microstructure

In order to study the mechanistic differences between recycled aggregate concrete (RAC)and normal aggregate concrete(NAC), the magnifier and scanning electron microscope were used to observe the meso-interfacial structure and microstructure of interfacial transition zone morphology of the RAC respectively, and analysed differences between RAC and NAC; Secondly, the finite element software ABAQUS was used to simulation the simplified model of RAC. The above analysis results show that, there existe a transition zone in the interface, the aggregate-new mortar interface as well as the new-old mortar interface has been obvious cracks before loading, this part is the weak link of RAC ;After loading, the crack occurs first in the old interface, then appeared at the new interface, and then develop to the old mortar, finally, there formed a through crack.

Study on Recycled Aggregate Concrete Frame Joints with Method of Nonlinear Finite Element

2009 ◽  
Vol 417-418 ◽  
pp. 745-748
Author(s):  
Jian Zhuang Xiao ◽  
M.M. Tawana ◽  
Xiao Hui Zhu
Keyword(s):  
Finite Element ◽  
Seismic Behavior ◽  
Low Frequency ◽  
Nonlinear Finite Element ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Displacement Curve ◽  
Element Analysis ◽  
Aggregate Concrete ◽  
Concrete Frame

With the achievements made in the research of mechanical properties for recycled aggregate concrete, this paper adopts the method of nonlinear finite element to analyze the seismic behavior of frame joints. The frame joints are made of recycled aggregate concrete. It also takes into account the bond behavior between steel bars and recycled aggregate concrete in the core area of the joints, and the force-displacement curve of the joints is calculated. Nonlinear finite element analysis shows that the results of the calculations are in accordance with the test results. It is concluded in this paper that, built models with nonlinear finite element method can be applied in simulating exactly the same seismic behavior of frame joints under low frequency reversed lateral loading.

Experimental Study on Seismic Behavior of Recycled Aggregate Concrete Torsion Beams with ABAQUS

2014 ◽  
Vol 1079-1080 ◽  
pp. 220-225
Author(s):  
Jia Li Fu ◽  
Bing Kang Liu ◽  
Jun Wei Ma ◽  
Hui Zhou
Keyword(s):  
Experimental Study ◽  
Finite Element ◽  
Seismic Behavior ◽  
Coarse Aggregate ◽  
Concrete Beams ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Normal Concrete ◽  
Aggregate Concrete ◽  
Finite Element Software

The torsional capacity oftwo recycled aggregate concrete (RAC) beams with 100% recycled coarse aggregate(RCA) and two normal concrete beams subjected to monotonic torsion was investigatedby the finite element software ABAQUS, and the simulated results were comparedwith the experimental results. The investigation shows that recycled aggregateconcrete torsional members have good seismic behavior. The simulated resultsagree well with experimental ones. It can be reference for actual engineering.

Finite Element Analysis of Reinforced Concrete Beams with Exterior FRP Shell

2011 ◽  
Vol 243-249 ◽  
pp. 1461-1465
Author(s):  
Chuan Min Zhang ◽  
Chao He Chen ◽  
Ye Fan Chen
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Test Results ◽  
Contact Interface ◽  
Accurate Calculation ◽  
Element Analysis

The paper makes an analysis of the reinforced concrete beams with exterior FRP Shell in Finite Element, and compares it with the test results. The results show that, by means of this model, mechanical properties of reinforced concrete beams with exterior FRP shell can be predicted better. However, the larger the load, the larger deviation between calculated values and test values. Hence, if more accurate calculation is required, issues of contact interface between the reinforced concrete beams and the FRP shell should be taken into consideration.

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