Integral Lifting Project of the Qifeng Bridge
Publication: Journal of Performance of Constructed Facilities
Volume 26, Issue 3
Abstract
To fulfill the navigation development plan of the Hu-Jia-Shen Channel located on the eastern coast of China, it is necessary to upgrade its width and clearance height. The Qifeng Bridge, an arch bridge over the channel, is required to be raised by 2.5 m using the integral lifting method. In this paper, the operation principles of the hydraulic jack system, the composition of the supporting structures, and the lifting process of the bridge are presented. To verify the proposed procedures adopted in this project, a 3-dimensional finite-element method (FEM) model, incorporating a bridge-capping beam of main span and a supporting girder, is established to analyze the contact behavior and stress distribution characteristics between the beam and supporting girder. The induced stresses in the superstructure and supporting structures are also monitored and analyzed.
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Acknowledgments
The first author would like to express sincere thanks to the engineers and project managers of Shanghai Evolution Building Shift Engineering Co., Ltd., who generously provided information on the lifting system and construction scheme. Additional thanks are also extended to the design engineers of Zhejiang Communications Survey and Design Co., Ltd., who provided the design drawings of the supporting structures and limiting devices.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 26 • Issue 3 • June 2012
Pages: 353 - 361
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Jul 27, 2010
Accepted: Feb 9, 2011
Published online: Feb 11, 2011
Published in print: Jun 1, 2012
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