A model for predicting load-displacement hysteretic behavior of PVC-CFRP confined concrete column-ring beam interior joints under low cyclic loading

2021 ◽  
Vol 265 ◽  
pp. 113769
Author(s):  
Zekang Song ◽  
Feng Yu ◽  
Nannan Zhang ◽  
Yuan Fang
Keyword(s):  
Cyclic Loading ◽  
Hysteretic Behavior ◽  
Confined Concrete ◽  
Concrete Column ◽  
Low Cyclic Loading ◽  
Load Displacement

Experimental study on PVC-CFRP confined concrete columns under low cyclic loading

2018 ◽  
Vol 177 ◽  
pp. 287-302 ◽  
Author(s):  
Feng Yu ◽  
Guoshi Xu ◽  
Ditao Niu ◽  
Anchun Cheng ◽  
Ping Wu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Cyclic Loading ◽  
Concrete Columns ◽  
Confined Concrete ◽  
Low Cyclic Loading

Experimental Research on Hysteretic Behavior of L-Shaped Columns with HRB500 Reinforcement

2013 ◽  
Vol 275-277 ◽  
pp. 947-950
Author(s):  
Kun Liu ◽  
Jing Xian Tian ◽  
Yan Yan Li
Keyword(s):  
Energy Dissipation ◽  
Cyclic Loading ◽  
Experimental Research ◽  
Ultimate Load ◽  
Hysteretic Behavior ◽  
Energy Dissipation Capacity ◽  
Low Cyclic Loading ◽  
Damage Characteristic

Three L-shaped columns with HRB500 reinforcement were tested under low cyclic loading. The effect of stirrup ratios on damage characteristic, hysteretic characteristic, rigidity degradation and energy dissipation capacity was analyzed to research the hysteretic behavior of L-shaped columns with HRB500 reinforcement. The result shows that the damage characteristic and the hysteretic characteristic of L-shaped columns with HRB500 reinforcement are improved with the increase of stirrup ratios. The energy dissipation capacity of L-shaped column was also enhanced after ultimate load with the increase of stirrup ratios.

A Proposed Damage Model for RC Bridge Columns under Cyclic Loading

2001 ◽  
Vol 17 (2) ◽  
pp. 261-290 ◽  
Author(s):  
Riyadh A. Hindi ◽  
Robert G. Sexsmith
Keyword(s):  
Cyclic Loading ◽  
Low Cycle Fatigue ◽  
Damage Model ◽  
Damage Index ◽  
Bridge Columns ◽  
Hysteretic Behavior ◽  
Concrete Column ◽  
Cycle Fatigue ◽  
Proposed Model ◽  
Ultimate Displacement

This paper defines a damage index based on the predicted hysteretic behavior of a concrete column. The model yields a damage index at a point in the time history for the element, based on the predicted monotonic response from the point in time to failure. The model takes into account the parameters that describe the hysteretic behavior: stiffness degradation, strength deterioration, and ultimate displacement reduction. Therefore, the damage model is accumulative and it combines energy, ductility, and low-cycle fatigue. The model is based on the work needed to fail a reinforced concrete column monotonically after it experiences a cyclic loading. The model modifies the ultimate displacement that the column can achieve, due to low-cycle fatigue in the longitudinal reinforcement using the Coffin-Manson rule in combination with Miner's hypothesis. The proposed model is applied to bridge columns tested by others, and compared to existing damage indices. The proposed model gives a realistic prediction of damage throughout the loading cycles for several test specimens investigated.

Experimental Study on Seismic of High-Strength Spiral Stirrups Prefabricated Column Encased by Steel Plate Hoop and Bolt Reinforcement

2012 ◽  
Vol 594-597 ◽  
pp. 1675-1679
Author(s):  
Xian Chao Zheng ◽  
Qing Ning Li ◽  
Shu Bin Pan ◽  
Wei Shan Jiang
Keyword(s):  
Experimental Study ◽  
Cyclic Loading ◽  
Steel Plate ◽  
High Strength ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Compressive Loads ◽  
Seismic Property ◽  
Low Cyclic Loading ◽  
Bolt Reinforcement

The assembled monolithic compound spiral reinforced concrete column in this paper is a kind of concrete column reinforced by high-strength compound spiral stirrups and jointed by local steel tubular and bolt reinforcement. Experiments of four specimens under low cyclic loading and different axial compressive loads are carried out, and the result testifies that the anti-seismic property of these measures is not worse than the integral compound spiral hoop columns under the same load.

Effect of Stirrup Ratio on Seismic Behavior of Cross-Shaped Columns with HRB500 Reinforcement

2012 ◽  
Vol 166-169 ◽  
pp. 2605-2608
Author(s):  
Yan Yan Li ◽  
Xian Rong ◽  
Jian Xin Zhang
Keyword(s):  
Cyclic Loading ◽  
Great Improvement ◽  
Seismic Behavior ◽  
Displacement Ductility ◽  
Accumulated Damage ◽  
Hysteretic Performance ◽  
Result Show ◽  
Low Cyclic Loading ◽  
Load Displacement ◽  
Damage Characteristic

Three cross-shaped columns were tested under low cyclic loading in order to research the effect of stirrup ratio on seismic behavior of cross-shaped columns with HRB500 reinforcement. The damage characteristic, hysteretic curve, load, displacement, ductility and accumulated damage were analyzed. The result show the damage characteristic is improved, the hysteretic performance has great improvement and the ductility of cross-shaped columns is enhanced with the increase of volume stirrup ratio. Besides, the degree of accumulated damage of specially shaped columns with HRB500 reinforcement can also be lighten.

Research of Assembled Monolithic Compound Spiral Reinforced Concrete Column Encased by Steel Plate Hoop and Jointed by Bolts

2012 ◽  
Vol 724 ◽  
pp. 255-258
Author(s):  
Jin Li ◽  
Xiao Jie Li ◽  
Qing Ning Li ◽  
Wei Shan Jiang ◽  
Yi Hui Ying
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Steel Plate ◽  
High Strength ◽  
Concrete Columns ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Compressive Loads ◽  
Seismic Property ◽  
Low Cyclic Loading

The assembled monolithic compound spiral reinforced concrete column in this paper is consisted of two concrete columns reinforced by high-strength compound spiral hoop and jointed by encased steel and bolts. Experiments of four specimens under low cyclic loading and different axial compressive loads are carried out, and the result testifies that the anti-seismic property of this measure is not worse than the integral compound spiral hoop columns under the same load.

scholarly journals A Finite Element Study on Compressive Resistance Degradation of Square and Circular Steel Braces under Axial Cyclic Loading

2021 ◽  
Vol 11 (13) ◽  
pp. 6094
Author(s):  
Hubdar Hussain ◽  
Xiangyu Gao ◽  
Anqi Shi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Loading ◽  
Slenderness Ratio ◽  
Hysteretic Behavior ◽  
Element Analysis ◽  
Section Shape ◽  
Axial Cyclic Loading ◽  
Global Buckling ◽  
Parametric Studies

In this study, detailed finite element analysis was conducted to examine the seismic performance of square and circular hollow steel braces under axial cyclic loading. Finite element models of braces were constructed using ABAQUS finite element analysis (FEA) software and validated with experimental results from previous papers to expand the specimen’s matrix. The influences of cross-section shape, slenderness ratio, and width/diameter-to-thickness ratio on hysteretic behavior and compressive-tensile strength degradation were studied. Simulation results of parametric studies show that both square and circular hollow braces have a better cyclic performance with smaller slenderness and width/diameter-to-thickness ratios, and their compressive-tensile resistances ratio significantly decreases from cycle to cycle after the occurrence of the global buckling of braces.

scholarly journals ANALYSIS OF A CANTILEVER COLUMN SUBJECTED TO CYCLIC LOADING

2020 ◽  
Vol 1 (2) ◽  
pp. 38-39
Author(s):  
Tran Tuan Nam
Keyword(s):  
Cyclic Loading ◽  
Local Buckling ◽  
Hysteretic Behavior ◽  
Steel Columns ◽  
Buckling Behavior ◽  
Column Wall ◽  
Component Test ◽  
Element Approach ◽  
Hinge Zone ◽  
Analytical Result

In a seismic incident, the structural steel columns are commonly damaged with local buckling formulation at either the top or bottom ends. This study analyzes and simulates the hysteretic behavior of a hollow square steel column under cyclic loading by adopting the fiber-element approach. This method discretizes the hinge zone into a series of fibers and considers buckling behavior of those fibers along the column wall. The analytical result was achieved in good agreement with the component test.

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