Experimental investigation on seismic behavior of the precast shear wall systems with different connection methods under the coupling action of axial tension and cyclic horizontal load

Yang, Jun; Wang, Yingqian; Xu, Xiaochun; Fang, Youzhen; Sun, Bin

doi:10.1016/j.istruc.2023.105152

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…In line with the comprehensive research objectives, this study utilizes the pseudo-static test method to conduct relevant experimental research. This study conducted pseudo-static tests on the specimens under constant axial Yang et al have investigated the seismic performance of the novel precast shear wall system subjected to the coupling action of cyclic horizontal load and axial pressure or axial tension [10,30]. According to the test results, the connections in the novel precast shear wall system exhibited high reliability, demonstrating significantly superior performance compared to monolithic cast-in-place connections.…”

Section: Introductionmentioning

confidence: 99%

“…Angle steel connectors were used to improve the shear resistance of the horizontal joints between the precast reinforced concrete shear wall and the foundation, as well as to provide temporary support for specimen positioning and installation. The research team has previously conducted a comprehensive investigation into the seismic performance of this new precast shear wall system with an angle steel connector under axial tension and compression [10,30]. The findings indicated that this new precast shear wall system with an angle steel connector demonstrated superior seismic performance compared to traditional lap-jointed prefabricated concrete shear walls, grouting sleeveconnected prefabricated concrete shear walls, and monolithic cast-in-place shear walls.…”

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confidence: 99%

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Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

Sun,

Zhang,

Yang

et al. 2023

Materials

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Construction industrialization addresses various challenges in the traditional construction industry, enabling building structures to conserve resources and enhance energy efficiency while reducing emissions. Precast shear walls involve the factory-based production of components, followed by transportation to a construction site for assembly. The method of connecting these components is crucial for precast concrete shear wall systems. Common connection methods include lap-spliced connections, post-tensioned connections, welded connections, bolted connections, and sleeve connections. However, challenges such as construction precision and technology proficiency have limited their application. In response, a novel precast concrete shear wall system utilizing angle steel connectors has been proposed. These angle steel connectors enhance the shear resistance of horizontal joints between precast concrete shear walls and the foundation, providing provisional support for specimen positioning and installation. Presently, the seismic performance of this innovative precast shear wall system under the combined actions of cyclic horizontal loads and axial pressure or tension has been extensively investigated. In practical engineering applications, precast concrete shear wall systems are often accompanied by infill walls. However, there is limited research on the seismic performance of precast concrete shear wall systems with infill walls. To address this gap, this study designed and fabricated two novel precast concrete shear walls with different infill wall constructions. One specimen featured an infill wall composed of a single wall panel, while the other had an infill wall consisting of two panels. Pseudo-static tests were conducted on both specimens under constant axial compression. Subsequently, the seismic performance and force mechanism of the two specimens were compared with the novel precast concrete shear walls without infill walls. The test results demonstrated that the specimen with two infill wall panels exhibited superior overall performance compared to the one with a single continuous infill wall panel. Furthermore, it was observed that, during the loading process, the edge columns of specimens with infill walls provided the majority of the increased load-bearing capacity, while the infill walls made a limited contribution to the overall load-bearing capacity of the structures.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

Sun,

Zhang,

Yang

et al. 2023

Materials

Self Cite

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Design and Analysis of a Novel Prefabricated Foundation for Substation Buildings

Tian,

Li,

Wan

2024

Buildings

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In recent years, prefabricated components have been widely used in the construction of substation superstructures, while cast-in-place foundations remain the primary method for substation foundations. This paper presents and evaluates a novel prefabricated foundation design aimed at enhancing construction efficiency and load-bearing performance. The foundation features a modular design, with each module weighing only half that of a cast-in-place foundation of the same size, significantly improving construction convenience and transportation efficiency. The load-bearing performance of the foundation was validated through static load tests and finite element modeling. The results indicate that the foundation demonstrates excellent ductility, with flexural failure as the primary mode, characterized by multiple cracks across the mid-span and complete yielding of longitudinal reinforcing steels. Further parametric analysis shows that increasing the plate thickness ratio (λ) improves the ultimate bearing capacity of the foundation significantly. Additionally, enlarging the cross-sectional size of the shear key or increasing the strength of the wet joint material enhances overall structural synergy, reduces local deformation, and improves load distribution efficiency. Overall, the sensitivity order of factors influencing the bearing capacity of the new prefabricated foundation is plate thickness ratio (λ) > wet joint strength > shear key cross-sectional size.

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Experimental investigation on seismic behavior of the precast shear wall systems with different connection methods under the coupling action of axial tension and cyclic horizontal load

Cited by 2 publications

References 21 publications

Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

Design and Analysis of a Novel Prefabricated Foundation for Substation Buildings

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