Mechanical Analysis of the Anchorage Zone of Pylon for Xinjiang Cable-Stayed Bridge Based on Refined Finite Element Model

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Abstract:

The Pylon of Xinjiang Cable-Stayed Bridge has a special geometric form, of which the anchorage zone adopts the steel-concrete composite structure with built-in steel anchorage box. To investigate the mechanical behavior, the refined 3D finite element model has been established with the shear nails of steel anchorage box simulated. The stress conditions of steel anchorage box and concrete under prestressing bar and stayed cable forces have been then studied. The bearing proportion at the anchorage zone for the horizontal component of cable force has been calculated. Results indicate that the overall mechanical performance of the anchorage zone is excel, which can be a reference for designing of similar structure.

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172-176

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February 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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