Seismic behavior of steel fiber-reinforced high-strength concrete mid-rise shear walls with high-strength steel rebar

2021 ◽  
pp. 102462
Author(s):  
Jianwei Zhang ◽  
Juan Liu ◽  
Xiangyu Li ◽  
Wanlin Cao
Keyword(s):  
High Strength Steel ◽  
High Strength Concrete ◽  
Seismic Behavior ◽  
Steel Fiber ◽  
Shear Walls ◽  
High Strength ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
Steel Rebar

scholarly journals Seismic Behavior Analysis of Damaged Steel Fiber-Reinforced High-Strength Concrete Frame Joints Strengthened by FRP

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Wang Tingyan ◽  
Zhou Yun ◽  
Zhang Junwei
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
High Strength Concrete ◽  
Seismic Behavior ◽  
Steel Fiber ◽  
High Strength ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
Concrete Frame ◽  
Capacity Degradation

In this paper, the seismic behavior of fiber-reinforced polymer (FRP) strengthened and unstrengthened steel fiber-reinforced high-strength concrete frame joints under low cyclic loading was tested. Then, the nonlinear finite element program was used to simulate the seismic behavior of FRP strengthened and unstrengthened steel fiber-reinforced high-strength concrete frame joints under low cyclic repeated load. The influence of FRP bond direction on the seismic behavior of steel fiber-reinforced high-strength concrete frame joints was studied. Through the comparison of the test values and numerical simulation values of the hysteretic curve, skeleton curve, energy dissipation capacity, displacement ductility, bearing capacity degradation, stiffness degradation, and other performance indexes of frame joints, the rule was obtained. The results showed that the 45° bonding direction of carbon fiber cloth is better than the 0° bonding direction, and the digital simulation results are in good agreement with the test results. Therefore, the constitutive model, element, end constraint, and loading method used in the finite element numerical simulation of this paper were reasonable, which can provide reference for the similar research in the future.

Calculation Method of Crack Width of Steel Fiber Reinforced High-Strength Concrete Beams under Fatigue Load

2012 ◽  
Vol 238 ◽  
pp. 190-195
Author(s):  
Dan Ying Gao ◽  
Ming Zhang
Keyword(s):  
Fatigue Crack ◽  
Calculation Method ◽  
High Strength Concrete ◽  
Crack Width ◽  
Steel Fiber ◽  
Concrete Beams ◽  
High Strength ◽  
Fiber Reinforced ◽  
Fatigue Load ◽  
Strength Concrete

Based on the fatigue test, 8 steel fiber reinforced high-strength concrete beams are studied, the influencing factors of crack width are discussed in the paper, and the calculation method of crack width under fatigue load is investigated. Based on the analysis of test results, the formulas are put forward. The results show that adding steel fiber into the high-strength concrete beams can prevent the development of the fatigue crack, fatigue crack widths are decreased by 26.0%~121.0% and the calculated values have good agreement with test date.

J Integral of Steel Fiber Reinforced High Strength Concrete

2012 ◽  
Vol 476-478 ◽  
pp. 1568-1571
Author(s):  
Ting Yi Zhang ◽  
Guang He Zheng ◽  
Ping Wang ◽  
Kai Zhang ◽  
Huai Sen Cai
Keyword(s):  
High Strength Concrete ◽  
Fiber Volume Fraction ◽  
Steel Fiber ◽  
Volume Fraction ◽  
High Strength ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Three Point Bending ◽  
Strength Concrete

Through the three-point bending test on the specimens of steel fiber reinforced high strength concrete (SFHSC), the effects of influencing factors including water-cement ratio (W/C) and the fiber volume fraction (ρf) upon the critical value(JC) of J integral were studied. The results show that the variation tendencies of JC are different under different factors. JC meets the linear statistical relation with W/C, ρf, respectively.

Sign in / Sign up

Export Citation Format

Share Document