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Volume 44 Issue S1
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GUO Nan, LU Fa, YANG Xiao-hui, MA Tian-zhong. Bearing characteristics and method of prefabricated for support structure frame-prestressed anchor cable[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 254-258. DOI: 10.11779/CJGE2022S1045
Citation: GUO Nan, LU Fa, YANG Xiao-hui, MA Tian-zhong. Bearing characteristics and method of prefabricated for support structure frame-prestressed anchor cable[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 254-258. DOI: 10.11779/CJGE2022S1045
shu

Bearing characteristics and method of prefabricated for support structure frame-prestressed anchor cable

  • 1.

    School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

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  • Received Date: September 24, 2022
  • Available Online: February 06, 2023
    Graphical Abstract
    • Abstract
  • The support structure of frame-prestressed anchor cable has limitations in the rapid emergency landslide reinforcement or slope support projects. At the same time, the existing support structure of variable cross-section prefabricated frame-prestressed anchor cable is prone to damage or uneven settlement. A new type of pre-stressed anchor cable support structure with equal cross-section fabricated frame is proposed. Through the numerical simulations, field monitoring tests and theoretical researches, the bearing characteristics and design methods of the structure are deeply studied. The results show that the new fabricated frame structure is mainly composed of prefabricated members and joints with equal section, and it has the advantages of convenient construction and high efficiency. The column stress of the structure is large and the beam stress is small. The strains of both of them increase with the increase of the height, but the strength of the structural node is low, especially the node on the column. With the increase of the additional loads on the structure, the bottom stress of the frame increases, the top stress decreases, and the overall strain of the frame increases linearly. According to the load-bearing characteristics and node deformation of the prefabricated frame structure, three design methods for the prefabricated frame structure are put forward, which can be applied to practical engineering design. The above researches may provide scientific basis for the design and construction of support structure of prefabricated frame-prestressed anchor cable.
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    • References (12)
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