Cyclic behavior of hollow-core precast shear walls subjected to different axial loads

Yanna, Li; Li, Zhenbao; Tang, Zhenyun; Liangyu, Xu; Wang, Wei; Yang, Xiaohong; Youfan, Chen

doi:10.1016/j.engstruct.2022.115343

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…It should be noted that existing joint designs for PRCHW structures need further improvement to reduce material use during construction. For example, the length of reserved holes is currently designed to be equal to the entire height of the wall panel, 6,20,[22][23][24] resulting in unnecessary postconcrete casting. Besides, careful consideration is needed for the connection reinforcement of vertical joints.…”

Section: Introductionmentioning

confidence: 99%

“…To gain a deeper understanding of the behavior of PRCSWS consisting of PRCHW, finite element (FE) analysis is often conducted. 22,[31][32][33] Some studies [34][35][36][37][38][39] have investigated the tensile behavior of individual joints based on refined FE models that reproduced the main geometric characteristics. However, modeling the complex configuration of vertical joints inside shear wall components presents a challenge.…”

Section: Introductionmentioning

confidence: 99%

“…However, there is limited literature available on the failure mechanism of vertical joints in PRCHW structures due to the complex joint configuration that induces unknown stress transfer through vertical joints. To gain a deeper understanding of the behavior of PRCSWS consisting of PRCHW, finite element (FE) analysis is often conducted 22,31–33 . Some studies 34–39 have investigated the tensile behavior of individual joints based on refined FE models that reproduced the main geometric characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Seismic performance and parametric study of precast reinforced concrete Shear Wall structure with indirect‐lapping joints

Wang,

Zhao,

et al. 2024

Structural Concrete

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Precast reinforced concrete (RC) shear wall structures (PRCSWS) are widely adopted by high‐rise buildings owing to their attractive advantages such as high construction quality and seismic resistance. A novel vertical joint for PRCSWS was proposed, featured by the indirect lap between connection cages and vertical distributed bars of the wall panel. The feasibility of this joint was verified by pseudo‐static experiments on precast shear wall specimens with different joint designs and a referential cast‐in‐place (CIP) specimen. To gain more insights into the failure mechanism of the PRCSWS with different joint designs, non‐linear finite element (FE) models were established and analyzed for the numerical study. The simulation showed good agreement with the experimental result regarding the load‐drift curves, cracking patterns, and failure modes, exhibiting a flexural‐shear failure with corner concrete crushing. The investigation into the failure patterns of four specimens indicated that anchorage deterioration of interfaces inside the joints was induced by cyclic tension, leading to both reductions in ductility and energy dissipation. This effect was more obvious when the connection cages (a design parameter) were less and more concentrated. The parametric study revealed that increasing the anchorage length of connection cage in wall panel and additional confinement reinforcements surrounding the reserved ducts could reduce the relative slip on the interfaces and enhance the anchorage of connection cages, which could further improve the seismic performance of PRCSWS.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Seismic performance and parametric study of precast reinforced concrete Shear Wall structure with indirect‐lapping joints

Wang,

Zhao,

et al. 2024

Structural Concrete

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“…However, if the core of such is filled, it can also be used as a load-bearing wall [19]. Many scholars [20][21][22][23] have conducted relevant research in this regard and have found that although hollow-core RC walls have good ductility and energy dissipation capacities, the bearing capacity of these wall panels in seismic activity and compression is poor.…”

Section: Introductionmentioning

confidence: 99%

Simplified Analytical Methods for Prefabricated Concrete Wall Panel Building System with Alveolar-Type Joints

et al. 2023

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This paper presents a type of prefabricated concrete wall panel building system with novel flexible alveolar-type joints, which has the advantages of fast assembly and controllable quality. Seven alveolar-type joint specimens were designed and fabricated to investigate the influence of the axial compression ratio, the size of the joint (in the interface contact area), and the strength of the mortar on the joints’ performance. The shear–slip constitutive model of the alveolar-type joints was established on this basis. The accuracy of the constitutive model was verified by comparing two full-scale loading tests with the exact finite element analysis model of ABAQUS. A finite element model of a multi-story apartment building was established by using the aforementioned shear–slip constitutive model; thus, the simplified analysis method for the prefabricated concrete wall panel building structure with alveolar-type joints was proposed. It was concluded that increasing the axial compression ratio, mortar strength, and size of the joints could increase the shear-bearing capacity by different degrees and that the 50 mm depth joint could increase the capacity by 18.6%. The proposed shear–slip constitutive model simulated the interface mechanism well by comparing the test results. Furthermore, the simplified analytical methods of the integral structure were in good agreement with the FEA results.

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Quasi-static tests of squat reinforced concrete shear walls with openings

Zheng

Zhou

et al. 2023

Engineering Structures

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Cyclic behavior of hollow-core precast shear walls subjected to different axial loads

Cited by 8 publications

References 28 publications

Seismic performance and parametric study of precast reinforced concrete Shear Wall structure with indirect‐lapping joints

Seismic performance and parametric study of precast reinforced concrete Shear Wall structure with indirect‐lapping joints

Simplified Analytical Methods for Prefabricated Concrete Wall Panel Building System with Alveolar-Type Joints

Quasi-static tests of squat reinforced concrete shear walls with openings

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