Design Optimization of Steel Anchor Beam in Cable-Pylon Composite Anchor Structure

Abstract:

Because the stress concentration usually appears in the plate corner or discontinuity zone, it is necessary to optimize design for local plate of steel anchor beam bearing huge cable force. Based on 3D elaborate finite-element method, the stress distribution of steel anchor beam of cable-pylon composite anchor structure was analyzed. The results showed that the steel anchor beam of cable-pylon composite anchorage structure was safe and reliable, the application of the vertical stiffened plate of the side plate in anchor box and the middle diaphragm efficiently improved the force state of the steel anchor beam, on the other hand the stress conditions of the concrete pylon was more ideal when the steel anchor beam was within the boundary condition of one end of anchor beam fixed and the other end with sliding support.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1374-1377
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1374
• Online since: January 2014
• Authors: Min Zhao, Wen Ru Lu, Lin Ma
• Keywords: Bridge Engineering, Cable-Pylon Composite Anchor Structure, Cable-Stayed Bridge, Design Optimization, Steel Anchor Beam

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