Experimental Study on Seismic Performance of Full Precast Shear Wall-Frame Structures

Ma, Junwei; Jinlong, Pan; Yin, Wanyun; Liu, Shou-cheng

doi:10.12783/dteees/eesd2017/12001

Cited by 5 publications

(8 citation statements)

References 2 publications

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“…Meanwhile, PC walls, in the form of large-diameter and large-spacing rebars or uniformly reinforced rebars, are reported [ 14 , 31 ], and the technologies can ensure easy and economical installation, and thus enhance the assembly speed and effective construction. Furthermore, many researchers also proposed the novel idea of fully precast concrete wall panel structural systems to realize the industrial manufacture and rapid construction for PC structures [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. These structural systems included monolithic precast concrete round-hole wall panel structures [ 33 , 34 , 35 ], precast concrete (PC) frame-shear wall structures [ 36 ], and assembled large-plate structures [ 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, many researchers also proposed the novel idea of fully precast concrete wall panel structural systems to realize the industrial manufacture and rapid construction for PC structures [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. These structural systems included monolithic precast concrete round-hole wall panel structures [ 33 , 34 , 35 ], precast concrete (PC) frame-shear wall structures [ 36 ], and assembled large-plate structures [ 37 , 38 , 39 ]. It was suggested that the longitudinal bars of the side column should be connected by steel grouted sleeve connectors, and the results illustrated that these PC wall panel structural systems exhibit good seismic performances.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on Seismic Behavior of PC Walls with Alveolar-Type Horizontal Joint under Pseudo-Static Loading

Cheng

Luo

Cheng³

et al. 2022

Materials

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There are many horizontal joints on precast concrete (PC) wall panel structures, which certainly has a significant impact on the seismic behavior of structures. This paper proposes a novel alveolar-type horizontal joint, which has advantages of convenient and rapid assembly. Six precast concrete wall specimens with alveolar-type joints were designed and constructed, and they were weakly connected by spliced rebars anchored into grouted sleeves to meet the requirements of structural performance. The pseudo-static loading tests on these specimens were conducted to investigate the effects of influencing factors, such as the axial compression ratio, the thickness of wall (interface contact area), and the addition of a vertical grouted sleeve connection at the horizontal joint, on the seismic performance of PC walls. Analyses and comparisons were conducted in terms of the cracking propagation pattern, failure modes, force–displacement hysteretic curves, skeleton curves, bearing capacity, ductility factors, and energy dissipation of PC walls. It was concluded that the axial compression ratio and adding grouted sleeve connection had a significant influence on the cracking mode of PC walls, whereas the impact of the wall thickness was slight. The shear capacity and energy dissipation capacity of specimen dramatically enhanced by increasing the axial compression ratio or adding grouted sleeve connection. The PC wall exhibits good ductility after adding the vertical grouted sleeve connection at a horizontal joint. However, the ductility factor increases firstly and then decreases in the enhancement of the axial compression ratio. The reduction in wall thickness has remarkable impacts on the shear strength and energy dissipation capacity of specimens, but the influences on ductility were not significant. The prediction method for calculating the shear capacity of PC walls with alveolar-type horizontal joints was proposed based on the experimental data, and these calculated results are in good agreement with the experimental results.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Study on Seismic Behavior of PC Walls with Alveolar-Type Horizontal Joint under Pseudo-Static Loading

Cheng

Luo

Cheng³

et al. 2022

Materials

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“…When the wall and column are small in a single-storey building, the wall, column and beam can also be prefabricated into a unit, and then assembled directly in a similar way to the frame and shear wall structure. Research has shown that this method can also be achieved satisfactory effects (Mo,et al[23], Ma, et al [24]).…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Mechanical Properties of Concrete-Filled Steel Tube (Cfst) Key-Connected Prefabricated Wall and Column

2020

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The prefabricated structures have the advantages of high construction speed, energy efficiency, environmental friendliness, and low labor demand. At present, the connection of fabricated concrete structural components mainly relies on connecting the stressed steel bars of the prefabricated components using a variety of methods, and then casting concrete or grout at the joints. This requires a large quantity of wet work, and most studies on this topic focused on frame structures and shear wall structures. The research on frame-shear wall structures is still rare. To fill this gap, a new type of connecting prefabricated shear wall and prefabricated frame column in the assembled frame-shear structure by using concrete-filled steel tubs (CFST) keys is proposed with experimental study. This paper analyzes the differences in the mechanical properties and the failure modes of three kinds of structures , i.e. the wall and column connected by CFST keys, the wall and column connected by the CFST keys with concrete block placed between t hem, and the wall and column connected by the cast-in-place method. This paper also investigates the mechanical properties and failure modes of the first kind of structure when the failure of shear wall is caused by the CFST keys. The test results show tha t the CFST keys with the reinforced concrete block placed between them are superior to the cast-in-place structures in terms of wall-column connection mode, and the bearing capacity and ductility of the structure, while sharing similar initial stiffness of the structure.The CFST keys connection mode shows engineering feasibility and good seismic performance. When designing this type of connection, the strength of the CFST keys should be moderately controlled. If the strength level is too high, the shear resistance of the overall structure will decrease.

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“…Precast concrete frame structure (PCFS) is composed of precast concrete beams, precast concrete columns, and precast concrete dry connections, and all the components are assembled directly at location after processing in the factories [4]. However, the rotational stiffness, connection strength, and hysteretic behavior of precast concrete dry connection may perform poorly, so the ductility, lateral stiffness, and seismic performance of PCFS were obviously reduced [5]. e seismic performance and seismic resilience capacity of PCFS should be further improved so as to satisfy higher requirements.…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance Evaluation of Precast Concrete Beam‐to‐Shear Link Composite Connection with Bending Moment and Shear Force Separate Method

Guo

Xiong³

et al. 2020

Advances in Civil Engineering

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A new type of prefabricated reinforced concrete-Y-shaped eccentrically steel brace structure (PRC-Y-ESBS) is developed by combining the mechanical property of prefabricated reinforced concrete frame and Y-shaped eccentrically steel brace, so the seismic performance and seismic resilience capacity of prefabricated reinforced concrete frame can be effectively improved. In the PRC-Y-ESBS, the precast concrete beam-to-shear link composite connection should have enough bearing capacity and resilience capacity under the shear force and bending moment, so the damage can be restricted in shear links. In this paper, an innovative precast concrete beam-to-shear link composite connection (PCB-SLCC) with bending moment and shear force separate method is proposed. Four different types of shear connectors are analyzed in detail by using the verified numerical method, and the shear capacity and failure mode of shear connectors can be obtained. Then, the innovative PCB-SLCCs with the reasonable shear connector considering different influencing parameters are also studied in detail. The results indicate that the shear connectors and high-strength bolts are still in elastic state at ultimate load, and little damage has occurred in the concrete between the embedded plate and precast concrete frame, while the PCB-SLCC has enough bearing capacity at the ultimate stage. In addition, this study also clearly identifies that high-strength bolts can only bear the bending moment, and the shear force is only carried by shear connectors, so the bending moment and shear force of the innovative PCB-SLCC with high bearing capacity, ease of installation, and seismic resilience capacity can be apparently separated.

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Experimental Study on Seismic Performance of Full Precast Shear Wall-Frame Structures

Cited by 5 publications

References 2 publications

Experimental Study on Seismic Behavior of PC Walls with Alveolar-Type Horizontal Joint under Pseudo-Static Loading

Experimental Study on Seismic Behavior of PC Walls with Alveolar-Type Horizontal Joint under Pseudo-Static Loading

An Experimental Study on Mechanical Properties of Concrete-Filled Steel Tube (Cfst) Key-Connected Prefabricated Wall and Column

Seismic Performance Evaluation of Precast Concrete Beam‐to‐Shear Link Composite Connection with Bending Moment and Shear Force Separate Method

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