2019
DOI: 10.1177/1369433219878854
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Optimizing the anchoring structure for a super large cable-net structure with improved fatigue resistance

Abstract: During its operation, the vast cable-net structure of China’s Five-hundred-meter Aperture Spherical radio Telescope is subject to super high stress amplitude (up to 500 MPa) that the current anchoring structure is unable to bear. As a solution to this problem, this article presents an optimized anchoring structure that includes a main anchor cup and an auxiliary anchor cup. Typically used to compose Five-hundred-meter Aperture Spherical radio Telescope’s cable-net structure, the S3-type cable is selected as th… Show more

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Cited by 5 publications
(6 citation statements)
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“…Its elastic modulus is 195GPa, Poisson's ratio is 0.3, yield stress is 1635.3MPa and standard strength is 1860MPa. The friction coefficient between epoxy iron sand and tendon is 0.3, and that between epoxy iron sand and anchor cup is 0.1 [28].…”
Section: Finite Element Analysismentioning
confidence: 99%
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“…Its elastic modulus is 195GPa, Poisson's ratio is 0.3, yield stress is 1635.3MPa and standard strength is 1860MPa. The friction coefficient between epoxy iron sand and tendon is 0.3, and that between epoxy iron sand and anchor cup is 0.1 [28].…”
Section: Finite Element Analysismentioning
confidence: 99%
“…The typical S3-cable of the FAST project was taken as an example where E = 36000 MPa, β = 5.7°, α1 = 4.1°, α2 = 3°, r1 = r3 = 33 mm, x0 = 106 mm, H = 225 mm, υ = 0.3, the maximum design value of the cable force = 312,480 N (40% of the cable force limit, to be safe) [28]. With these parameters, DF was calculated as 0.32 mm.…”
Section: Fig 13 Calculation Diagram Of Double-cone Cable Anchormentioning
confidence: 99%
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“…A magnetic flux sensor has favorable application prospects and is suitable for measuring a static cable force with a measurement accuracy of 3–8% [ 14 ]. Fiber Bragg grating intelligent strand cables and strain gauge-equipped intelligent steel strand cables [ 15 , 16 , 17 ] have not been promoted on a large scale, because it is difficult to paste fiber gratings and strain gauges on steel strands; moreover, the problem of detachment due to glue aging [ 18 ] also persists. The resistance strain gauge method uses foil-type strain gauges pasted on the steel wire in the cable body to measure the external force of the cable; the sensitive grid wire is deformed to change its resistance to output an electrical signal, and the cable force is obtained via data analysis and processing of the information recorded by the strain collector.…”
Section: Introductionmentioning
confidence: 99%