Mechanical Performances of Transverse Rib Bar During Pull-Out Test

Wang, Shuren; Xiao, Huang; Zou, Zhengsheng; Cao, Cong; Wang, Y H; Wang, Z L

doi:10.1142/s1758825119500480

Cited by 28 publications

(9 citation statements)

References 19 publications

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“…11, the stress distribution of the anchor bolt on two wall waists was asymmetric, the right anchor bolt was significantly greater than that of the left one. The stress distribution of the anchor bolt was characterized by "small at ends and large in the middle" [23,24]. The maximum stress of the anchor bolt on the right wall waist was located at 1.0 m from the hole at the 15th day, 3.0 m at the 20th to the 25th day.…”

Section: Stress Of Anchor Boltsmentioning

confidence: 98%

Study on the Deformation Mechanism of a Soft Rock Tunnel

Yang¹,

Shen²,

Pan³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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The large deformation of soft rock tunnel is one of the key problems to be overcome in the tunnel construction stage. In the present study, the deformation mechanism of a representative tunnel and some related countermeasures are investigated using field tests and engineering geological analysis. Owing to the scarce performances of methods based on other criteria such as small pipe spacing, anchor bolt length and steel frame spacing, a new support scheme is implemented and optimized. Results show that shear failure and bedding sliding are produced under high horizontal stress conditions. The low strength of the surrounding rock results in the uneven convergence of both sides of the tunnel. With the aforementioned new support scheme, however, most of such problems can be mitigated leading to good stability properties and ensuing economic advantages.

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Section: Stress Of Anchor Boltsmentioning

confidence: 98%

Study on the Deformation Mechanism of a Soft Rock Tunnel

Yang¹,

Shen²,

Pan³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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show abstract

“…Within the limitations of experimental research method, test conditions, and specimen quantity, few studies have investigated the seismic behavior of new composite components [15][16]. Since finite element analysis is a common method for in-depth and systematic analysis, Xu et al simulated the seismic behavior of an S-RACFST column and found that the column exhibited satisfactory seismic behavior [17].…”

Section: State Of the Artmentioning

confidence: 99%

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Zhang¹,

Wang²,

Gao³

2019

JESTR

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To investigate the seismic behavior of recycled aggregate concrete-filled circular steel tube (C-RACFST), twenty-three full-scale specimens were tested by changing the design parameters. Seismic behavior indices, such as hysteresis curve, skeleton curve, ductility coefficient, and energy dissipation capacity were analyzed and the influence rules of design parameters on seismic behavior index were revealed. Results show that it is feasible to apply C-RACFST to the actual load-bearing structure based on the seismic behavior index requirements. With the increase of the steel ratio, the hysteresis curve become plumper, and the peak-bearing capacity and displacement ductility coefficient increase. With the increase of the axial compression ratio, the peak-bearing capacity and ductility decrease and the energy dissipation coefficient of each specimen increases gradually under the same cycle displacement. The conclusions obtained in the study are of reference value to direct the similar engineering.

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“…Si-Larbi et al carried out experimental on many large-scale beams strengthened by well-known reinforcement techniques, such as externally bonded CFRP plate and the NSM technique, which were compared to the proposed new strengthening material through four-point bending tests [16]. These studies have shown that the reinforcement technology prestressed FRP can improve reinforcement performance and have good reinforcement effect, especially good crack resistance performance [17][18]. But the prestressed FRP needs special anchor, and the FRP has a low shear strength and high cost in raw material.…”

Section: State Of the Artmentioning

confidence: 99%

Performance of Concrete Beam Strengthened with Prestressed Sprial Steel Wires

Ding¹,

Zhang²,

Zhang³

2019

JESTR

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In view of the defects and limitations of the existing reinforcement methods, it is necessary to put forward a reinforcement method with better interfacial bond performance, more convenient construction and economical reinforcement. A new reinforcement technique with prestressed spiral steel wires was presented, and one control beam, three strengthened beams under monotonic loading were tested. Under the same initial prestressing level, the amount of reinforcement and different groove sizes, the flexural capacity, load-deflection relationship, crack and deformation of reinforced concrete beams were systematically investigated. Results show that the reinforcement technique can significantly improve the first-crack load, steel-yielding load, ultimate load of the beams, and improve the service performance of the strengthened beams. The high performance of the spiral steel wires is allowed for better utilization. The conclusions obtained in the study are of important reference value to direct the similar engineering practice.

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Mechanical Performances of Transverse Rib Bar During Pull-Out Test

Cited by 28 publications

References 19 publications

Study on the Deformation Mechanism of a Soft Rock Tunnel

Study on the Deformation Mechanism of a Soft Rock Tunnel

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Performance of Concrete Beam Strengthened with Prestressed Sprial Steel Wires

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