Analytical observability method for the structural system identification of wide-flange box girder bridges with the effect of shear lag

2021 ◽  
Vol 131 ◽  
pp. 103879
Author(s):  
Yuan Sun ◽  
Yaren Xu ◽  
José Antonio Lozano-Galant ◽  
Xiaoming Wang ◽  
José Turmo
Keyword(s):  
System Identification ◽  
Structural System ◽  
Shear Lag ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Structural System Identification

scholarly journals The shear-lag effect of composite box girder bridges with corrugated steel webs and trusses

2019 ◽  
Vol 181 ◽  
pp. 617-628 ◽  
Author(s):  
Yiyan Chen ◽  
Jucan Dong ◽  
Tianhua Xu ◽  
Yufeng Xiao ◽  
Ruijuan Jiang ◽  
...  
Keyword(s):  
Shear Lag ◽  
Shear Lag Effect ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Lag Effect

Analysis of Effection of the Prestressing Force on Shear Lag in Curved Box Girder

2010 ◽  
Vol 150-151 ◽  
pp. 1022-1025
Author(s):  
Yu Hong Zhang ◽  
Jian Shun Zhang
Keyword(s):  
Impact Factors ◽  
Shear Lag ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Prestressing Force ◽  
Structural Force ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
The Impact

The impact on curved box girder bridges due to applying prestressing force have been analyzed using finite element method. This paper presents the results of an experimental investigation and analytical studies. Based on the model experiment, the results and conclusions of shear lag in curved box girder with prestressing force are presented that prestressing force has changed shear lag distribution. The prestressing force action on box girder shall be considered comprehensively, structural force shall be analyzed accurately, optimize prestressing tendons shall be set rationally which would make force more rationally. The results highlighted that the impact factors of a curved box girder bridge have been observed to be generally very high, while those of the other responses are also relatively higher than that of corresponding straight box girder bridge.

scholarly journals Estimation of The Shear-Lag Effect of Composite Box Girder Bridges With Corrugated Steel Webs

2018 ◽  
Vol 08 (04) ◽  
Author(s):  
Ruijuan Jiang ◽  
Qiming Wu ◽  
Yufeng Xiao ◽  
Manlin Peng ◽  
Tianhua Xu
Keyword(s):  
Shear Lag ◽  
Shear Lag Effect ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Lag Effect

Effect of Shear Lag on the Long-Term Performance of Long-Span PC Box Girder Bridge

2011 ◽  
Vol 255-260 ◽  
pp. 1290-1294 ◽  
Author(s):  
Yan Wei Niu
Keyword(s):  
Prestressed Concrete ◽  
Three Dimensional ◽  
3D Analysis ◽  
Shear Lag ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Long Span ◽  
Girder Bridge

The analysis and mechanism of excessive long-term deflection of long-span prestressed concrete (PC) box girder bridges is concentrated recently. However, because of the lack of computing method, three dimensional (3D) analysis of PC continuous bridge especially including long-term shear lag effect is hard to analyze. According to this, a 3D creep analysis method for long-span PC bridges is illustrated in this paper first. The shear lag analysis of loads, prestress and their combination effect is carried out respectively. Based on this, the effect of shear lag to the long-term deflection of mid-span and whole-shape of the bridge is demonstrated. At the end, the different of computing between analysis with or without considering shear lag is discussed and some suggestion is proposed.

Shear Lag in Box Girder Bridges

2002 ◽  
Vol 7 (5) ◽  
pp. 308-313 ◽  
Author(s):  
Q. Z. Luo ◽  
Q. S. Li ◽  
J. Tang
Keyword(s):  
Shear Lag ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges
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