Abstract
Based on full-scale sectional model experiment for cable pylon anchorage zone of cable-stayed bridge, this research tested the friction factor and deviation factor of the duct. The reason that tension elongation of loop prestressing tendon exceeded the provision of ±6% in specification was analyzed systematically. A correctional calculation formula was proposed, with quantitative analysis for influencing factors of tension elongation. The formula shows good applicability in practical engineering and has reference value for similar loop prestressing tendon.
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