Effects of the Replacement Length of Concrete with ECC on the Cyclic Behavior of Reinforced Concrete Columns

Hyun, Jung-Hwan; Bang, Jae-Wook; Lee, Bang Yeon; Kim, Seong Su

doi:10.3390/ma14133542

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Before the specimen has yielded, the forcecontrolled mode is adopted, the increment is 10 kN, and each load is pushed and pulled once. After the specimens yields, the displacement-controlled method is used for loading, and the yield displacement (∆ y ) is used as the increment, and each displacement is repeated for three cycles [32]. When the load drops to 85% of the peak load, it indicates that the specimen has been damaged [33].…”

Section: Test Setup and Measurementsmentioning

confidence: 99%

Effects of Coal Gangue Coarse Aggregate on Seismic Behavior of Columns under Cyclic Loading

et al. 2022

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Coal gangue is the rock discharged from coal mining. Using coal gangue as coarse aggregate is one of the solutions for the sustainable development of construction engineering. Five one-half scaled coal gangue concrete (CGC) frame columns with different coal gangue coarse aggregate replacement ratios were designed, and the effect of coal gangue coarse aggregate on seismic behavior of columns under cyclic loading was studied. The test results show that the failure of coal gangue coarse aggregate under cyclic loading is the main reason for the reduction in hysteretic performance of CGC specimens. Compared with natural aggregate concrete (NAC) specimen, the hysteretic behavior, deformation performance, and energy consumption of CGC columns were reduced. However, the seismic performance of CGC specimens with higher replacement ratio was better than that of CGC specimens with a lower replacement ratio. Compared with NAC specimen, the ductility and total energy dissipation of CGC specimen with r = 100% were only reduced by 8.2% and 12.8%. In addition, the test results also found that the higher the replacement ratio, the greater the shear deformation of the specimen. It is recommended to appropriately increase the stirrup ratio of CGC specimens in seismic design.

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Section: Test Setup and Measurementsmentioning

confidence: 99%

Effects of Coal Gangue Coarse Aggregate on Seismic Behavior of Columns under Cyclic Loading

et al. 2022

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“…Especially, the ductility of concrete columns directly determines the safety of structures under horizontal seismic loads. Many researchers evaluated the ductility of concrete columns under horizontal seismic loads 5–10 . However, many influential parameters have critical effects on the ductility of concrete columns under horizontal seismic loads, such as the compressive strength of concrete, the yield strength, volumetric ratio, configurations of stirrups, longitudinal reinforcement ratio, axial compression ratio, shear‐span ratio, and so on.…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers evaluated the ductility of concrete columns under horizontal seismic loads. [5][6][7][8][9][10] However, many influential parameters have critical effects on the ductility of concrete columns under horizontal seismic loads, such as the compressive strength of concrete, the yield strength, volumetric ratio, configurations of stirrups, longitudinal reinforcement ratio, axial compression ratio, shear-span ratio, and so on. The relationships between the ductility of concrete columns and influential parameters are complicated and hard to be determined.…”

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confidence: 99%

Estimation of ductility of concrete columns under horizontal seismic load

Chang,

Hao,

Zheng

2023

Structural Concrete

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The ductility of concrete columns, which determined the deformability of concrete columns, was an important parameter in evaluating the safety of framework structures under horizontal seismic loads. In this paper, 231‐group test data for evaluating the ductility of concrete columns under seismic loads were collected to establish a reliable database. The effects of investigated parameters including the compressive strength of concrete, the lateral confinement of stirrups, the ratio and yield strength of longitudinal reinforcements, axial compression ratio, shear span ratio, and the ratio between gross area and confined concrete area on the ductility of concrete columns were analyzed. The accuracy of theoretical models for evaluating the ductility of confined concrete relied on the prediction performance for the plastic hinge length of the concrete column. The existing models for the plastic hinge length of concrete columns underestimated the test results, which should be re‐evaluated. The prediction models were developed to evaluate the ductility of concrete columns based on the parametric analysis, which had high prediction performance. In addition, the design ductility limited value of concrete columns under horizontal seismic loads was obtained.

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Seismic Behavior of SMA-Reinforced ECC Columns Under Different Axial Load Ratios

Khan

2023

Iran J Sci Technol Trans Civ Eng

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Effects of the Replacement Length of Concrete with ECC on the Cyclic Behavior of Reinforced Concrete Columns

Cited by 5 publications

References 14 publications

Effects of Coal Gangue Coarse Aggregate on Seismic Behavior of Columns under Cyclic Loading

Effects of Coal Gangue Coarse Aggregate on Seismic Behavior of Columns under Cyclic Loading

Estimation of ductility of concrete columns under horizontal seismic load

Seismic Behavior of SMA-Reinforced ECC Columns Under Different Axial Load Ratios

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