Seismic Performance of Bridge Piers Constructed with PP-ECC at Potential Plastic Hinge Regions

Jia, Yating; Zhao, Renda; Li, Fuhai; Zhou, Zhidong; Wang, Yongbao; Zhan, Yulin; Shi, Xianming

doi:10.3390/ma13081865

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…After the correction, the calculation cost of the constitutive model of concrete is low, the convergence performance is good, and the calculation results are more accurate. The constitutive equation of the Scott-Kent-Park model is equation (1).…”

Section: Constitutive Model Of Ordinary Concretementioning

confidence: 99%

Impact Analysis of Section Seismic Capacity in Potential Plastic Hinge Zone of Engineered Cementitious Composite Based on OpenSees

Yuan,

Jiang,

Feng

et al. 2024

J. Phys.: Conf. Ser.

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In this paper, OpenSees is used to analyze the moment-curvature (M-φ) curves of the bottom cross section of 4×40m continuous girder piers under the same reinforcing conditions, which are completely made of C40 concrete, partially made of Engineered Cementitious Composite material concrete(ECC) outsourced concrete, and completely made of ECC concrete, and then evaluate its seismic performance. Meanwhile, the yield curvature and ultimate curvature changes of the abutment section under different axial compression ratios are investigated. The results show that the yield curvature and ultimate curvature of ECC are larger than those of ordinary concrete, and the deformation capacity of ECC is stronger under the same axial force. The results also show that the yield moment and yield curvature of the section gradually increase with the increase of axial compression ratio, and the curvature ductility of the section deteriorates.

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Section: Constitutive Model Of Ordinary Concretementioning

confidence: 99%

Impact Analysis of Section Seismic Capacity in Potential Plastic Hinge Zone of Engineered Cementitious Composite Based on OpenSees

Yuan,

Jiang,

Feng

et al. 2024

J. Phys.: Conf. Ser.

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“…The reinforcement stirrup ratio, axial compression ratio, and height of the PP-ECC at plastic hinge region are considered factors to better understand their influences on the seismic performance of bridge piers. In a related study, the lateral load-displacement hysteretic curves, loading resistance capacity, ductility, stiffness degradation, energy dissipation, and equivalent viscous damping ratio have been studied [29]. As continued in this study, the observed phenomena, moment-curvature relationships, and reinforcement behaviors during the test are analyzed and reported.…”

Section: Introductionmentioning

confidence: 99%

Moment-Curvature Behavior of PP-ECC Bridge Piers under Reversed Cyclic Lateral Loading: An Experimental Study

Jia

Lai

et al. 2020

Applied Sciences

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In the study, the moment–curvature relations of bridge piers constructed with polypropylene-fiber-reinforced engineered cementitious composite (PP-ECC) and reinforced concrete (RC) at the potential plastic hinge regions were performed experimentally. The bridge pier specimens were subjected to a combination of constant axial vertical loading and reversed cyclic lateral loading. The test variables include the reinforcement stirrup ratio, axial compression ratio, and height of the PP-ECC regions. Strain gauges were installed at the plastic hinge regions to determine the curvature. PP-ECC and RC bridge piers presented similar shapes of moment–curvature hysteretic curve. Regardless of the concrete type for the pier, the maximum moment and curvature were located near the bottom of the pier, which was consistent with the observed failure patterns. As greater peak moments and larger areas of hysteretic curves were observed for PP-ECC piers, this indicated that the use of PP-ECC at the potential plastic hinge regions significantly improved the deformation capacity and damage tolerance of bridge piers. Regarding the design variables, it was found that the axial loading ratio has a negative effect on enhancing the rotation capacity and plastic deformability, while the height of the PP-ECC portion and the amount of reinforcement stirrups displayed the opposite trend. Moreover, the contribution of stirrups in PP-ECC piers was more significant than that of RC ones.

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“…erefore, concrete-filled steel tube (CFST) piers [9][10][11][12], fiber-reinforced concrete (FRC) piers [13][14][15][16], and other engineered cementitious composite (ECC) piers [17][18][19] have also been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

Seismic Behavior of RC Bridge Piers Locally Replaced with SFRC‐FA Subjected to Torsion Combined with Axial Compression

Wang

Wan

et al. 2021

Advances in Materials Science and Engineering

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Under complex seismic forces, the failure characteristics of the plastic hinge region at the bottom of the pier column and the methods improving the ductility have attracted extensive attention. In this study, steel fiber-reinforced concrete with fine aggregate (SFRC-FA) was applied to locally replace the conventional concrete in the potential plastic hinge region at the bottom of the pier column. Five SFRC-FA pier column specimens with different stirrup ratios and different replacement lengths and one conventional reinforced concrete pier column specimen were produced. Using the seismic behavior tests under the combined bending-shear-torsion-axial force, the failure mode, torsional bearing capacity, energy dissipation, and the torsional plastic hinges of the pier columns were investigated. In addition, an equation for calculating the torsional bearing capacity of the new composite pier columns was proposed. The results showed that (1) compared with the reinforced concrete pier column, the plastic hinge was shifted from the bottom of the pier column to the middle of the height of the pier column due to the application of SFRC-FA at the bottom of the pier column, which improved the torsional bearing capacity; (2) the effect of reducing the stirrup ratio of the SFRC-FA replacement region on the torsional bearing capacity, cracking mode, energy dissipation, and ductility was not obvious; (3) the accuracy of the new equation based on the space truss model proposed in this article was verified by comparison with the experiments of this study and other researches.

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Seismic Performance of Bridge Piers Constructed with PP-ECC at Potential Plastic Hinge Regions

Cited by 8 publications

References 18 publications

Impact Analysis of Section Seismic Capacity in Potential Plastic Hinge Zone of Engineered Cementitious Composite Based on OpenSees

Impact Analysis of Section Seismic Capacity in Potential Plastic Hinge Zone of Engineered Cementitious Composite Based on OpenSees

Moment-Curvature Behavior of PP-ECC Bridge Piers under Reversed Cyclic Lateral Loading: An Experimental Study

Seismic Behavior of RC Bridge Piers Locally Replaced with SFRC‐FA Subjected to Torsion Combined with Axial Compression

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