Seismic Performance of Reinforced Concrete Beam to Concrete-Filled Steel Tubular Columns Joints

In this paper, eight reinforced concrete (RC) beam to concrete-filled steel tubular (CFST) column joints enclosed by rebars were tested under reversal horizontal displacement with constant axial load in order to study their seismic behavior. The test parameters are axial load level and the section type of CFST column. In this study, the failure model, hysteretic characteristic, ductility and energy dissipation were investigated. The results indicated that the anti-earthquake abilities of all joints satisfied with the demand on the code.

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Reinforced concrete beams on yielding supports with thrust under dynamic load

Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel nogo universiteta JOURNAL of Construction and Architecture ◽

10.31675/1607-1859-2021-23-6-143-156 ◽

2021 ◽

Vol 23 (6) ◽

pp. 143-156

Author(s):

O. G. O.G. Kumpyak ◽

D. R. Galyautdinov

Keyword(s):

Reinforced Concrete ◽

Crack Resistance ◽

Dynamic Load ◽

Concrete Beam ◽

Energy Intensity ◽

Concrete Beams ◽

Horizontal Displacement ◽

Reinforced Concrete Beam ◽

Reinforced Concrete Beams ◽

Positive Effect

Reinforced concrete beam with limited horizontal displacement on yielding supports under dynamic loading require considering the thrust response. The thrust presence significantly increases the beam strength and crack resistance. The use of yielding supports increases their energy intensity. The purpose of the paper is the experimental study of using yielding supports under the dynamic load conditions. The experimental results concern the reinforced concrete beam with yielding supports with a thrust under the dynamic load. The paper shows the effect from yielding supports on the strength, deformability, and crack resistance of reinforced concrete beams. The obtained results indicate to a positive effect form the use of yielding supports of the beam under the dynamic load.

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Experimental and Numerical Investigation on Reinforced Concrete Beam-Column Joints

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.351-352.1450 ◽

2013 ◽

Vol 351-352 ◽

pp. 1450-1453

Author(s):

Xiao Yong Wu ◽

Yang Zhou Li

Keyword(s):

Reinforced Concrete ◽

Axial Load ◽

Concrete Beam ◽

Load Ratio ◽

Lateral Force ◽

Reinforced Concrete Beam ◽

Static Test ◽

Axial Load Ratio ◽

Source Program ◽

The Relationship

The elasto-plastic analysis of reinforced concrete square columns was introduced to study the relationship between lateral force and curvature by using the open source program OpenSees. A pseudo static test on the inverted "T" shape reinforced concrete square column was conducted for the comparative analysis. The results indicated that the lateral force calculated by program agree with experimental data with an axial load ratio of 0.33. The calculated yield lateral force was 29.7 kN, the error was lower than 7% compared with experimental results. In addition, the cross-section curvature were obtained, which were difficult to obtain through the traditional experimental study, the calculated yield curvature was 1.825×10-5. The calculated results with different axial load ratios were presented in this paper, which showed that both the yield lateral force and curvature of reinforced concrete square columns were increased with low axial load ratio, and at the same time it could reduce some experimental work by using computer simulation.

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Experimental Behaviour of Self-Consolidating Concrete (SCC) Filled Hollow Structural Steel (HSS) Columns Subjected to Cyclic Loadings

Advances in Structural Engineering ◽

10.1260/136943305774858007 ◽

2005 ◽

Vol 8 (5) ◽

pp. 497-512 ◽

Cited By ~ 5

Author(s):

Lin-Hai Han ◽

Jing-Tuan You ◽

Xiao-Kang Lin

Keyword(s):

Structural Steel ◽

Axial Load ◽

Load Level ◽

Axial Loads ◽

Normal Concrete ◽

Self Consolidating Concrete ◽

Flexural Loading ◽

Test Parameters ◽

Constant Axial Load ◽

Very High

The present paper is an attempt to study the cyclic behaviours of self-consolidating concrete (SCC) filled hollow structural steel (HSS) columns. The test parameters include the sectional types, the strength of concrete and steel and the axial load level ( n). Eighteen self-consolidating concrete filled hollow structural steel (SCCHSS) column specimens, including 10 specimens with circular sections and 8 specimens with square sections were tested under constant axial load and cyclically increasing flexural loading. It was found that, in general, SCCHSS columns exhibit very high levels of energy dissipation and ductility, particularly when subjected to high axial loads. The features of SCCHSS columns under constant axial load and cyclically increasing flexural loading are similar to those of normal concrete-filled HSS columns. Comparisons are made with predicted column strengths and flexural stiffness using the existing codes such as AIJ-1997, AISC-LRFD-1994, BS5400–1979 and EC4–1994.

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