scholarly journals Experimental Study on Seismic Behavior of High Strength Concrete Short Columns with High Axial Load Ratio

2015 ◽  
Author(s):  
Guojun Zhang ◽  
Benliang Liang ◽  
Boquan Liu
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Axial Load ◽  
Seismic Behavior ◽  
Load Ratio ◽  
High Strength ◽  
Strength Concrete ◽  
Short Columns ◽  
Axial Load Ratio

Behavior of High-Strength Concrete-Filled FRP Tube Columns under Simulated Seismic Loading: An Experimental Study

2013 ◽  
Vol 743 ◽  
pp. 39-44
Author(s):  
Yunita Idris ◽  
Togay Ozbakkloglu
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Axial Load ◽  
Seismic Behavior ◽  
High Strength ◽  
Seismic Loading ◽  
Load Level ◽  
Experimental Program ◽  
Strength Concrete ◽  
Frp Tube

This paper reports on part of an ongoing experimental program at The University of Adelaide on the seismic behavior of high-strength concrete (HSC)-filled fiber reinforced polymer (FRP) tubes (HSCFFTs). The results from three square concrete-filled FRP tube (CFFT) columns that were tested under combined constant axial compression and reversed-cyclic lateral loading are presented. The main parameters of the experimental study included the axial load level, concrete strength, and FRP tube corner radius. The results indicate that square HSCFFT columns are capable of developing very high inelastic deformation capacities under simulated seismic loading. The results also indicate that increasing the corner radius beyond a certain threshold value provides no increase in column lateral drift capacities. It was observed that column deformability decreased with an increase in axial load level (P/Po) and concrete compressive strength (fc). The results of the experimental program are presented together with a discussion on the influence of the main parameters on the seismic behavior of CFFT columns.

Yield Displacement Calculation Method of High-Strength Concrete Shear Wall

2013 ◽  
Vol 353-356 ◽  
pp. 3382-3386 ◽  
Author(s):  
Hua Jing Zhao ◽  
Xing Wen Liang ◽  
Can Song
Keyword(s):  
Cross Section ◽  
High Strength Concrete ◽  
Axial Load ◽  
Load Ratio ◽  
High Strength ◽  
Shear Wall ◽  
Strength Concrete ◽  
Axial Load Ratio ◽  
Yield Displacement ◽  
Calculation Results

Considering high compressive strength of high-strength concrete, it is assumed that concrete compressive stress of the cross-section compression zone is linear distribution when the cross-section of high-strength concrete shear wall reaches yield situation. Based on the plane section assumption, the yield curvature formula of shear wall section is obtained by using moment - curvature analysis method. The parameters effecting yield curvature of high-strength concrete shear wall are studied by using the yield curvature formula. The results show that longitudinal reinforced yield strain is the most influencing factor of the yield curvature in addition to axial load ratio. This paper presents yield curvature formula considering the impact of axial load ratio and boundary reinforcement yield stress through the regression analysis of calculation results. On this basis, the vertex yield displacement formula of high-strength concrete shear wall is proposed, and the calculation results of formula correspond to the vertex yield displacement experimental values of the 12 high-strength concrete cantilever wall well.

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