Analysis and Computation Method of Prestressed Concrete Bridge in Construction Control

Abstract:

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Based on solving the problems of pre-camber of the prestressed concrete bridge in construction, the calculation principle of the bridge model constructed in each stage is studied, the relation between forward and backward analysis method is illustrated, and the influencing factors related to characteristics of pre-camber and each controlled point are analyzed. Considering the influencing factors such as the establishment of new elements, the stressing of reinforcement, the shrinkage and creep of concrete in construction, the calculation model is established in accordance with the characteristics of prestressed concrete bridge constructed in each stage. The deformation of each construction segment is calculated with the forward and backward analysis method respectively, so that the pre-camber of each cantilever construction segment is gotten,which is the basis of construction control.

Info:

Periodical:

Edited by:

Paul P. Lin and Chunliang Zhang

Pages:

867-875

DOI:

10.4028/www.scientific.net/AMM.105-107.867

Citation:

S. Tan et al., "Analysis and Computation Method of Prestressed Concrete Bridge in Construction Control", Applied Mechanics and Materials, Vols. 105-107, pp. 867-875, 2012

Online since:

September 2011

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Price:

$35.00

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