NDLI: Creep behavior of precast segmental box girder bridge

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Creep behavior of precast segmental box girder bridge

Content Provider	Scilit
Author	Xihua, Dai Liangfang, Liu Rong, Xian
Copyright Year	2017
Description	Journal: Iop Conference Series: Earth and Environmental Science The concrete creep effect is more obvious when the box girder is assembled by segment. It is necessary to consider the influence of the loading value of the section at different time and the different age of concrete at different stages. In this paper, ACI209R-92, CEB-FIP MC90 and B3 and other concrete creep models are compared. The results show that the B3 model has many factors to consider and the calculation accuracy is high. Secondly, this paper discusses the influence of the segmental construction technology on the creep calculation, and puts forward the characteristics of the stress analysis of the segmental box girder. Finally, on the basis of the B3 model of concrete creep, the Midas software is used to establish the calculation model of segmental box girder, and the internal force and deformation of the box girder are calculated. The results show that the internal force and deformation of the box girder is too large due to the poor integrity of the segmental assembling process, which will seriously affect the normal service performance.
Related Links	http://iopscience.iop.org/article/10.1088/1755-1315/81/1/012138/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/81/1/012138
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	1
Volume Number	81
Language	English
Publisher	IOP Publishing
Publisher Date	2017-08-04
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Civil Engineering Concrete Creep Box Girder Segmental Box
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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