Control Technology on Jacking Closure Construction of Liangjiang Great Bridge

Abstract:

Prestressed concrete continuous rigid frame bridge is widely used in bridge engineering. Its closure is one of very important working procedure in the bridge construction. In this paper, taking Liangjiang Great Bridge in Xinxu Highway as an example, the methods for determining the Jacking force and displacement are discussed. The implementation of the process and construction technology of closure jacking scheme is introduced in detail. Through the finite element simulation, the stress state of on the structural pusher is analyzed. And the maximum stress of the pier bottom and the displacement of the pier top are obtained. They can verify the feasibility of the scheme. Monitoring results from the site construction verify the safety of the scheme. The method has a certain reference value on jacking closure construction for the similar bridge.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 1430-1434
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.1430
• Online since: July 2014
• Authors: Hao Jie Zhang, Zi Qiang Peng, Bao Lai Li, Xiao Chun Fan*
• Keywords: Closure, Construction Control, Continuous Rigid Frame Bridge, Jacking Technology, Prestressed Concrete

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