High-Strength Concrete Structure Strengthened with CFRP: Experimental Study and Nonlinear FE Analysis

2011 ◽  
Vol 255-260 ◽  
pp. 3087-3090
Author(s):  
Hong Hai ◽  
Ying Hua Zhao ◽  
Li Ye Sun
Keyword(s):  
Experimental Study ◽  
Failure Mode ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Fe Analysis ◽  
Fiber Reinforced ◽  
Concrete Member ◽  
Strength Concrete ◽  
Nonlinear Fe Analysis

This paper deals with high-strength concrete structure with carbon fiber reinforced plastic (CFRP) strips bonded to the shear face. The first part deals with an experimental study. The fiber reinforced plastics strengthened concrete member test presents a failure mode with debonding of the external CFRP strips from the concrete member. The second part deals with a nonlinear FE analysis with LS-DYNA . Considering of the adhesive layer, explicit finite element is used for simulating the shear failure of CFRP-strengthened concrete, obtain the whole process of structure deformation development and describe the conformation and development of crack and the failure mode. The FE results are compared with the experimental results.

An experimental study of steel fiber-reinforced high-strength concrete slender columns under cyclic loading

2013 ◽  
Vol 57 ◽  
pp. 565-577 ◽  
Author(s):  
Karen E. Caballero-Morrison ◽  
J.L. Bonet ◽  
Juan Navarro-Gregori ◽  
Pedro Serna-Ros
Keyword(s):  
Experimental Study ◽  
Cyclic Loading ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
High Strength ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
Slender Columns

Experimental Research and Numerical Investigation of High-Strength Concrete Structure Strengthened with CFRP

2011 ◽  
Vol 374-377 ◽  
pp. 2363-2366
Author(s):  
Hong Hai ◽  
Fan Gu ◽  
Yan Sheng Song
Keyword(s):  
Concrete Structure ◽  
High Strength Concrete ◽  
Shear Failure ◽  
Adhesive Layer ◽  
High Strength ◽  
Experimental Result ◽  
Fiber Reinforced ◽  
Explicit Finite Element ◽  
Strength Concrete ◽  
Double Shear

The shear resistance at the interface between FRP sheet and concrete is a key problem for the application of fiber-reinforced plastic (FRP) plates, which has emerged as a popular method for the strengthening of reinforced concrete structures. The objective of this study is to discuss the interfacial shear ultimate bearing capacity of a high-strength concrete structure strengthened by carbon fiber-reinforced polymer composites under static loads. Considering the different strength of concretes, double-shear tests were conducted. Based on the test results, considering of the adhesive layer, explicit finite element is used for simulating the shear failure of CFRP-strengthened concrete, obtain the whole process of structure deformation development, describe the conformation and development of crack and the failure mode. The FE result coincides with the experimental result.

Experimental Study on the Max Crack Width of Steel Fiber Reinforced High-Strength Concrete Beams

2016 ◽  
Vol 851 ◽  
pp. 798-802
Author(s):  
Qiao Yan Guan ◽  
Juan Wang ◽  
Ming En Zhang
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Crack Width ◽  
Steel Fiber ◽  
Concrete Beams ◽  
Volume Fraction ◽  
High Strength ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
Maximum Crack

The effect of volume fraction of steel fiber and the strength of reinforcement on the maximum crack width of steel fiber reinforced high-strength concrete beams was analyzed based on experimental results. In addition, the formula to calculate the maximum crack width of steel fiber-reinforced high-strength concrete beams was established.

The Failure Mode and Anti-Crack Performance of the Steel Fiber Reinforced High Strength Concrete Four-Pile Cap

2011 ◽  
Vol 306-307 ◽  
pp. 927-933
Author(s):  
Dan Ying Gao ◽  
Hua Fan ◽  
Jie Lei
Keyword(s):  
Failure Mode ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
High Strength ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
Load Carrying ◽  
Pile Cap ◽  
Ultimate Load Carrying Capacity ◽  
Different Thickness

Based on the experiments on 4 specimens with the dimension of 700mm×700mm and different thickness, the failure mode and anti-crack performance of the steel fiber reinforced high strength concrete four-pile cap was studied. The results show that the steel fiber mixed in high strength concrete in four-pile cap enhances its cracking load, limits the propagation of crack obviously and raises the ductility greatly. It also indicates that the ultimate load-carrying capacity of four-pile cap can be improved significantly with the increase of effective thickness.

scholarly journals Experimental study on comparison of the plasticizer effect on PVA fiber reinforcement concrete

2021 ◽  
Vol 309 ◽  
pp. 01180
Author(s):  
K. Hemalatha ◽  
V Mallikarjuna Reddy ◽  
Guntupally Nikhil
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Split Tensile Strength ◽  
Strength Concrete ◽  
Different Types ◽  
Pva Fiber

A high-strength Concrete structure is what everyone tries to achieve through the project. So many studies are being studied with various types of fibers. In this paper, I have used PVA fibers with two different types of plasticizers. The main purpose of this study is to find the amount of plasticizer to be used and which is feasible to be used for different proportions of PVA fibers. We have casted 0.125%, 0.250%, 0.375%, and 0.50% of PVA fiber in the proportion of the weight of cement. We have also studied their compressive strength and split tensile strength. By which we have decided the optimum dosage of plasticizes to be used for the different proportions of PVA fiber.

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