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Load-displacement Characteristics and Bearing Capacity Prediction on Anti-floating Anchor of Screw-thread Steel Bars
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Huan-long DU1, 2, Zhong-sheng WANG2, Nan YAN1, 2, *, Cheng-lu LÜ3, Xiao-yu BAI1, Shi-xiang JIA2, Gan SUN1, Lei ZHU4, Peng WANG5
Science Technology and Engineering | 2025, 25(8) : 3382 - 3390
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Science Technology and Engineering | 2025, 25(8): 3382-3390
• Architectural Science •
Load-displacement Characteristics and Bearing Capacity Prediction on Anti-floating Anchor of Screw-thread Steel Bars
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Huan-long DU1, 2, Zhong-sheng WANG2, Nan YAN1, 2, *, Cheng-lu LÜ3, Xiao-yu BAI1, Shi-xiang JIA2, Gan SUN1, Lei ZHU4, Peng WANG5
Affiliations
  • 1 School of Civil Engineering Qingdao University of Technology Qingdao 266520 China
  • 2 Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources Qingdao 266000 China
  • 3 Qingdao Shiyun Construction Machinery Co., Ltd. Qingdao 266042 China
  • 4 Jinan Municipal Engineering Design and Research Institute (Group) Co., Ltd. Jinan 250003 China
  • 5 Jinan Energy Engineering Group Co., Ltd. Jinan 250000 China
Published: 2025-03-18 doi: 10.12404/j.issn.1671-1815.2401918
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Based on the field pull destructive test of 9 anti-floating anchor of screw-thread steel bars in a foundation pit anti-float project in Qingdao, the load-displacement characteristics of anti-floating anchor of screw-thread steel bars under different anchoring lengths were studied, and the bearing performance of anti-floating anchor of screw-thread steel bars was determined. The results show that the ultimate uplift bearing capacity of the anti-floating anchor of screw-thread steel bars with the same diameter is 681 kN for the 3.0 m and 3.5 m anchors anchored in medium-weathered granite, and 1 004 kN for the 4.0 m anchors anchored in medium-weathered granite. At the initial stage of loading, the displacement of anchor head increase linearly, and with the increase of load, the displacement of anchor head increase abruptly, all of which exceed 50 mm. The agreement between the hyperbolic function and the power function load-displacement curve model and the measured value is good when the load level is low, but is relatively poor when the failure is near, and the predicted ultimate tensile strength is much different from the measured value. The exponential function load-displacement curve model can predict the ultimate uplift bearing capacity of the test anchors with high accuracy and good agreement with the measured curve.

screw-thread steel bars  /  anti-floating anchor  /  ultimate uplift bearing capacity  /  load-displacement(Q-s) curve  /  function model
Huan-long DU, Zhong-sheng WANG, Nan YAN, Cheng-lu LÜ, Xiao-yu BAI, Shi-xiang JIA, Gan SUN, Lei ZHU, Peng WANG. Load-displacement Characteristics and Bearing Capacity Prediction on Anti-floating Anchor of Screw-thread Steel Bars[J]. Science Technology and Engineering, 2025 , 25 (8) : 3382 -3390 . DOI: 10.12404/j.issn.1671-1815.2401918
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Year 2025 volume 25 Issue 8
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Article Info
doi: 10.12404/j.issn.1671-1815.2401918
  • Receive Date：2024-03-18
  • Online Date：2025-07-29
  • Published：2025-03-18
Article Data
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History
  • Received：2024-03-18
  • Revised：2024-11-22
Funding
Affiliations
    1 School of Civil Engineering Qingdao University of Technology Qingdao 266520 China
    2 Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources Qingdao 266000 China
    3 Qingdao Shiyun Construction Machinery Co., Ltd. Qingdao 266042 China
    4 Jinan Municipal Engineering Design and Research Institute (Group) Co., Ltd. Jinan 250003 China
    5 Jinan Energy Engineering Group Co., Ltd. Jinan 250000 China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
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Number of
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Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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