The Filler Application of Light Weight Aggregate Concrete in Double-Curved Arch Bridge Reinforcement

Abstract:

The basic principle of arch bridge design is high level concord of 5 points between arch axial line and the pressure line. Taking lightweight aggregate concrete as arch crown filler, the casting area is divided into arch spandrel area and arch crown area. Through adjusting filler weight density, the arch axial line and pressure line can be adjusted to decrease the difference between them. The force condition of main arch bridge gets improved. The method can reinforce double-curved arch bridge together with increasing section method. It is seen that the property of arch ring masonry material got a full play. Bridge durability and comfort degree improved significantly.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1626-1629
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1626
• Online since: May 2012
• Authors: Yun Zhang, Bei Li
• Keywords: Arch Axial Line, Double-Curved Arch Bridge, Lightweight Aggregate Concrete, Pressure Line, Reinforcement

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