Strain penetration effect on cyclic response of corroded RC columns

2021 ◽  
Vol 243 ◽  
pp. 112653
Author(s):  
Hu Cheng ◽  
Hong-Nan Li ◽  
Fabio Biondini ◽  
Dong-Sheng Wang ◽  
Yun Zou
Keyword(s):  
Rc Columns ◽  
Cyclic Response ◽  
Penetration Effect ◽  
Strain Penetration

Cyclic response of rectangular RC columns retrofitted by hybrid FRP sheets

Structures ◽  
2020 ◽  
Vol 28 ◽  
pp. 697-712
Author(s):  
Dong-Hyeon Shin ◽  
Hyung-Joon Kim
Keyword(s):  
Rc Columns ◽  
Cyclic Response

Nonlinear Beam-Based Modeling of RC Columns Including the Effect of Reinforcing-Bar Buckling and Rupture

2018 ◽  
Vol 34 (3) ◽  
pp. 1289-1309 ◽  
Author(s):  
Sadik Can Girgin ◽  
Mohammadreza Moharrami ◽  
Ioannis Koutromanos
Keyword(s):  
Low Cycle Fatigue ◽  
Sensitivity Study ◽  
Cyclic Loads ◽  
Reinforcing Steel ◽  
Rc Columns ◽  
Inelastic Buckling ◽  
Modeling Approach ◽  
Strain Penetration ◽  
Bar Buckling ◽  
The Impact

This study presents a beam-based modeling approach for the analysis of reinforced concrete (RC) frame members under cyclic loads that can capture the effect of inelastic buckling and rupture of reinforcing steel bars. The approach uses force-based elements with a fiber-section model and a corotational formulation to account for the geometric nonlinearity effect on the response of columns. A recently proposed phenomenological uniaxial model for steel reinforcement, capable of simulating inelastic buckling and rupture due to low-cycle fatigue, is used for the reinforcing steel fibers. Numerical simulation models also account for strain penetration effects in the analyses. The modeling approach is validated with the results of experimental tests on RC columns under cyclic loads. A sensitivity study is also pursued to elucidate the impact of bar buckling and strain penetration on the analytical results.

Cyclic response of slender RC columns typical of precast industrial buildings

2008 ◽  
Vol 6 (3) ◽  
pp. 519-534 ◽  
Author(s):  
Matej Fischinger ◽  
Miha Kramar ◽  
Tatjana Isaković
Keyword(s):  
Rc Columns ◽  
Cyclic Response ◽  
Industrial Buildings

Lateral Bearing Capacity and Stiffness Calculation Method of SRC-RC Columns

2019 ◽  
Vol 23 (5) ◽  
pp. 2158-2174 ◽  
Author(s):  
He Zhang ◽  
Pingzhou Cao ◽  
Kai Wu ◽  
Chao Xu ◽  
Lijian Ren
Keyword(s):  
Bearing Capacity ◽  
Calculation Method ◽  
Rc Columns

scholarly journals Experimental Research on Reinforced Concrete Columns Strengthened with Steel Jacket and Concrete Infill

2021 ◽  
Vol 11 (9) ◽  
pp. 4043
Author(s):  
Aleksandar Landović ◽  
Miroslav Bešević
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Cross Section ◽  
Experimental Research ◽  
Failure Modes ◽  
Steel Tube ◽  
Rc Columns ◽  
Rc Column ◽  
Steel Jacket ◽  
Ductile Behavior

Experimental research on axially compressed columns made from reinforced concrete (RC) and RC columns strengthened with a steel jacket and additional fill concrete is presented in this paper. A premade squared cross-section RC column was placed inside a steel tube, and then the space between the column and the tube was filled with additional concrete. A total of fourteen stub axially compressed columns, including nine strengthened specimens and five plain reinforced concrete specimens, were experimentally tested. The main parameter that was varied in the experiment was the compressive strength of the filler concrete. Three different concrete compression strength classes were used. Test results showed that all three cross-section parts (the core column, the fill, and the steel jacket) worked together in the force-carrying process through all load levels, even if only the basic RC column was loaded. The strengthened columns exhibited pronounced ductile behavior compared to the plain RC columns. The influence of the test parameters on the axial compressive strength was investigated. In addition, the specimen failure modes, strain development, and load vs. deformation relations were registered. The applicability of three different design codes to predict the axial bearing capacity of the strengthened columns was also investigated.

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