CLC number: U445.467
On-line Access: 2020-04-10
Received: 2019-07-09
Revision Accepted: 2020-01-03
Crosschecked: 2020-03-18
Cited: 0
Clicked: 3815
Jin-feng Wang, Tian-mei Wu, Jiang-tao Zhang, Hua-wei Xiang, Rong-qiao Xu. Refined analysis and construction parameter calculation for full-span erection of the continuous steel box girder bridge with long cantilevers[J]. Journal of Zhejiang University Science A, 2020, 21(4): 268-279.
@article{title="Refined analysis and construction parameter calculation for full-span erection of the continuous steel box girder bridge with long cantilevers",
author="Jin-feng Wang, Tian-mei Wu, Jiang-tao Zhang, Hua-wei Xiang, Rong-qiao Xu",
journal="Journal of Zhejiang University Science A",
volume="21",
number="4",
pages="268-279",
year="2020",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900322"
}
%0 Journal Article
%T Refined analysis and construction parameter calculation for full-span erection of the continuous steel box girder bridge with long cantilevers
%A Jin-feng Wang
%A Tian-mei Wu
%A Jiang-tao Zhang
%A Hua-wei Xiang
%A Rong-qiao Xu
%J Journal of Zhejiang University SCIENCE A
%V 21
%N 4
%P 268-279
%@ 1673-565X
%D 2020
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900322
TY - JOUR
T1 - Refined analysis and construction parameter calculation for full-span erection of the continuous steel box girder bridge with long cantilevers
A1 - Jin-feng Wang
A1 - Tian-mei Wu
A1 - Jiang-tao Zhang
A1 - Hua-wei Xiang
A1 - Rong-qiao Xu
J0 - Journal of Zhejiang University Science A
VL - 21
IS - 4
SP - 268
EP - 279
%@ 1673-565X
Y1 - 2020
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1900322
Abstract: To accurately control the full-span erection of continuous steel box girder bridges with complex cross-sections and long cantilevers, both the augmented finite element method (A-FEM) and the degenerated plate elements are adopted in this paper. The entire construction process is simulated by the A-FEM with the mesh-separation-based approximation technique, while the degenerated plate elements are constructed based on 3D isoparametric elements, making it suitable for analysis of a thin-walled structure. This method significantly improves computational efficiency by avoiding numerous degrees of freedom (DoFs) when analyzing complex structures. With characteristics of the full-span erection technology, the end-face angle of adjacent girder segments, the preset distance of girder segments from the design position, and the temperature difference are selected as control parameters, and they are calculated through the structural response of each construction stage. Engineering practice shows that the calculation accuracy of A-FEM is verified by field-measured results. It can be applied rapidly and effectively to evaluate the matching state of girder segments and the stress state of bearings as well as the thermal effect during full-span erection.
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