Finite Element Analysis on Incremental Launching Construction for Steel Box Girder

Jie Dai; Jin Di; Feng Jiang Qin; Min Zhao; Wen Ru Lu

doi:10.4028/www.scientific.net/AMR.671-674.974

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 671-674Finite Element Analysis on Incremental Launching...

Finite Element Analysis on Incremental Launching Construction for Steel Box Girder

Abstract:

For steel box girder of cable-stayed bridge, which using incremental launching method, during the launching process, structural system and boundary conditions were changing, structure mechanical behaviors were complex. It was necessary to conduct a comprehensive analysis on internal force and deformation of the whole structure during the launching process. Took a cable-stayed bridge with single tower, double cable planes and steel box girder in China as an example; finite element software MIDAS Civil 2010 was used to establish a model for steel box girder, simulation analysis of the entire incremental launching process was carried out. Variation rules and envelopes of the internal force, stress, deformation and support reaction were obtained. The result showed that: the maximum value of positive bending moment after launching complete was 60% of the maximum value of positive bending moment during the launching process. The maximum value of negative bending moment after launching complete was 78% of the maximum value of negative bending moment during the launching process.

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Periodical:

Advanced Materials Research (Volumes 671-674)

Pages:

974-979

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.671-674.974

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Online since:

March 2013

Authors:

Jie Dai, Jin Di, Feng Jiang Qin, Min Zhao, Wen Ru Lu

Keywords:

Bridge Engineering, Finite Element Analysis (FEA), Incremental Launching Construction, Steel Box Girder

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