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- W4321381466 abstract "For the exposed steel anchor box cable–pylon anchorage structure, there is a good application prospect in urban bridges of medium and small span due to its good mechanical behavior, easy construction and beautiful overall appearance. This paper reveals the stress-transfer mechanism of the exposed steel anchor box cable–pylon anchorage structure through a segmental model test with a scaled-down ratio of 1:2, and focused on the effect of prestress in the pylon. Three calculation modes for the anchorage structure are proposed, and simplified calculation equations of the horizontal load distribution relationship and the vertical shear force of the stud are derived. The effects of various design parameters on the load distribution ratio, the pylon wall tension caused by shrinkage and the vertical shear force of the studs are discussed by using the simplified calculation equation. The research results show that the exposed steel anchor box cable–pylon anchorage structure has good applicability in medium and small span bridges. Prestress can significantly reduce the tensile stress of the pylon wall concrete, and improve its crack resistance. There is no significant difference between the results of the simplified calculation equations and the finite element calculation, and the simplified calculation equations meet the design requirement." @default.
- W4321381466 created "2023-02-21" @default.
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- W4321381466 date "2023-04-01" @default.
- W4321381466 modified "2023-10-16" @default.
- W4321381466 title "Analysis on the stress mechanism of the exposed steel anchor box composite cable–pylon anchorage structure" @default.
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- W4321381466 doi "https://doi.org/10.1016/j.engstruct.2023.115816" @default.
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