Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load

Columns subjected to pure axial load rarely exist in practice. Reinforced concrete columns are usually subjected to combination of axial and lateral actions and deformations, caused by spatially‐complex loading patterns as during earthquakes causes lateral deflection that in turn affects the horiz...

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Main Authors: Rafaa Mahmood Abbas, Akram Ghulam Awazli
Format: Article
Language:English
Published: University of Baghdad 2017-02-01
Series:Journal of Engineering
Online Access:https://www.jcoeng.edu.iq/index.php/main/article/view/69/61
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author Rafaa Mahmood Abbas
Akram Ghulam Awazli
author_facet Rafaa Mahmood Abbas
Akram Ghulam Awazli
author_sort Rafaa Mahmood Abbas
collection DOAJ
description Columns subjected to pure axial load rarely exist in practice. Reinforced concrete columns are usually subjected to combination of axial and lateral actions and deformations, caused by spatially‐complex loading patterns as during earthquakes causes lateral deflection that in turn affects the horizontal stiffness. In this study, a numerical model was developed in threedimensional nonlinear finite element and then validated against experimental results reported in the literatures, to investigate the behavior of conventionally RC columns subjected to axial load and . lateral reversal cyclic loading. To achieve this goal, numerical analysis was conducted by using finite element program ABAQUS/Explicit. The variables considered in this study were axial load index, concrete compressive strength, column aspect ratio, longitudinal and transverse reinforcement ratios. According to numerical case studies, the results revealed that axial load index and longitudinal reinforcement ratio have the most impact on the column response. Also, increasing concrete compressive strength and reducing column aspect ratio resulted in increasing strength capacity of the column. Moreover, increasing lateral confinement by transverse reinforcement at the column ends increases the flexural strength of a flexure-controlled RC columns.
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spelling doaj.art-9295438385f640a0af761f8b8985728b2023-09-02T20:00:25ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392017-02-012322140Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral LoadRafaa Mahmood AbbasAkram Ghulam AwazliColumns subjected to pure axial load rarely exist in practice. Reinforced concrete columns are usually subjected to combination of axial and lateral actions and deformations, caused by spatially‐complex loading patterns as during earthquakes causes lateral deflection that in turn affects the horizontal stiffness. In this study, a numerical model was developed in threedimensional nonlinear finite element and then validated against experimental results reported in the literatures, to investigate the behavior of conventionally RC columns subjected to axial load and . lateral reversal cyclic loading. To achieve this goal, numerical analysis was conducted by using finite element program ABAQUS/Explicit. The variables considered in this study were axial load index, concrete compressive strength, column aspect ratio, longitudinal and transverse reinforcement ratios. According to numerical case studies, the results revealed that axial load index and longitudinal reinforcement ratio have the most impact on the column response. Also, increasing concrete compressive strength and reducing column aspect ratio resulted in increasing strength capacity of the column. Moreover, increasing lateral confinement by transverse reinforcement at the column ends increases the flexural strength of a flexure-controlled RC columns.https://www.jcoeng.edu.iq/index.php/main/article/view/69/61
spellingShingle Rafaa Mahmood Abbas
Akram Ghulam Awazli
Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
Journal of Engineering
title Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
title_full Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
title_fullStr Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
title_full_unstemmed Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
title_short Behavior of Reinforced Concrete Columns Subjected to Axial Load and Cyclic Lateral Load
title_sort behavior of reinforced concrete columns subjected to axial load and cyclic lateral load
url https://www.jcoeng.edu.iq/index.php/main/article/view/69/61
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