Inelastic Behavior and Ductility Capacity of Reinforced Concrete Bridge Piers under Earthquake. II: Numerical Validation

Kim, Tae-Hoon; Lee, Kwang-Myong; Yoon, Chongyul; Shin, Hyun-Tae

doi:10.1061/(asce)0733-9445(2003)129:9(1208)

Cited by 13 publications

(5 citation statements)

References 2 publications

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“…The concrete-reinforcement bond interaction is considered in both the tension stiffening model for concrete and the model for reinforcement. An earlier study [18] demonstrated that the above-mentioned analysis model agreed reasonably with the experimental data. …”

Section: Methods Of Analysissupporting

confidence: 65%

Flexural and Shear Behaviors of Reinforced Alkali-Activated Slag Concrete Beams

Lee

Choi

Choo

et al. 2017

Advances in Materials Science and Engineering

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The material properties of cement-zero concrete using alkali-activators have been studied extensively as the latest response to reduce the CO 2 exhaust of the cement industry. However, it is also critical to evaluate the behavior of reinforced concrete beams made of alkali-activated slag (AAS) concrete in terms of flexure and shear to promote the applicability of AAS concrete as structural material. Accordingly, nine types of beam specimens with various ratios of tensile steel and stirrup were fabricated and subject to bending and shear tests. The results show that the flexural and shear behaviors of the reinforced AAS concrete members are practically similar to those made of normal concrete and indicate the applicability of the conventional design code given that the lower density of slag is considered. In addition, a framework using the elastic modulus and stress-strain relation from earlier research is adopted to carry out nonlinear finite element analysis reflecting the material properties of AAS concrete. The numerical results exhibit good agreement with the experimental results and demonstrate the validity of the analytical model.

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Section: Methods Of Analysissupporting

confidence: 65%

Flexural and Shear Behaviors of Reinforced Alkali-Activated Slag Concrete Beams

Lee

Choi

Choo

et al. 2017

Advances in Materials Science and Engineering

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“…The bond interaction between concrete and reinforcement is considered in both the tension stiffening model for concrete and the model for reinforcement. It has been demonstrated in an earlier study (Kim et al 2003b) that the abovementioned analysis model showed reasonable agreement with experimental data in assessing the seismic performance of NSC bridge columns.…”

Section: Methods Of Analysissupporting

confidence: 60%

“…Similar to the earlier study for NSC (Kim et al 2003b), the finite element mesh for analysis consisted of three different types of elements. The base stub and column were modeled with two-dimensional 8-node plane stress elements.…”

Section: Hsc Columns Subjected To a Flexure Dominant Loading Conditionmentioning

confidence: 99%

Inelastic Performance of High-Strength Concrete Bridge Columns under Earthquake Loads

Seong

Kim

et al. 2011

ACT

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Despite its importance in the seismic performance of an overall structure, our understanding of the ductility capacity of high-strength concrete (HSC) columns under various loading conditions is relatively limited compared to that of normal-strength concrete (NSC) columns. This study aims to evaluate the seismic performance of HSC columns through a numerical analysis approach. Based on the smeared crack concept, the analysis model consisted of material models for concrete and embedded reinforcement. The brittle behavior and smooth crack surfaces of HSC are some of its main drawbacks in engineering practice. In the proposed models, the shear retention mechanism along the crack surface correctly considered the smooth crack surfaces of HSC, and the confining effect of the column core was taken into account by modifying the concrete compressive model according to an appropriate confinement model for HSC. As part of the investigation, five large-scale HSC columns were constructed and tested under simulated seismic loading. The proposed numerical method was applied in predicting the seismic performance of various HSC columns tested in this research program and obtained from other research in the literature. The analytically predicted hysteretic behavior, ductility level, and failure mode of the columns showed reasonable agreement with experimental data.

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“…Kim et al [ 26 , 27 ] conducted a static test study on four precast segmental piers set up with shear connection structures and precast foundations. Kurama et al [ 28 ] studied the seismic construction of precast concrete wall slabs with energy dissipation devices embedded in longitudinal joints and transverse joints of the foundation connected with unbonded posttensioned prestressing bars, derived idealized trilinear base shear and top displacement display solutions under lateral loads, and proposed a seismic design method for shear walls of this system based on the current building seismic code.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Static Behavior of Precast Segmental Hollow Bridge Piers

Peng

Zhu

et al. 2022

Materials

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To investigate the static performance of precast segmental hollow piers, two precast segmental hollow pier specimens were designed for static loading tests on the top of piers. The finite element model of precast segmental hollow piers was established by the finite element software Abaqus and verified based on the test results. Based on the experimental and finite element models, three optimal design solutions were proposed, and the calculation results of each solution were analyzed. The results show that precast segmental hollow pier mechanical behavior is similar to that of cantilevered bending members. The specimens present brittle damage characteristics after the destruction of the structure at the bottom of the pier pressure edge as the axis of the rigid body rotation. Following the test loading process, the bonding between the segments is good, except for the pier bottom damage surface of the rest of the bonding surface, which has no relative displacement. The calculation results of the finite element model are in good agreement with the test results and can effectively predict the load–displacement response of precast piers. Three optimized design solutions are proposed. The finite element simulation proves all three optimized design solutions show better overall ductility than the original solution and can effectively improve the performance of segmental precast hollow piers.

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Inelastic Behavior and Ductility Capacity of Reinforced Concrete Bridge Piers under Earthquake. II: Numerical Validation

Cited by 13 publications

References 2 publications

Flexural and Shear Behaviors of Reinforced Alkali-Activated Slag Concrete Beams

Flexural and Shear Behaviors of Reinforced Alkali-Activated Slag Concrete Beams

Inelastic Performance of High-Strength Concrete Bridge Columns under Earthquake Loads

Experimental and Numerical Study of Static Behavior of Precast Segmental Hollow Bridge Piers

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