Free vibration analysis and shape optimization of box girder bridges in straight and curved planform

2001 ◽  
Author(s):  
N Taysi
Keyword(s):  
Free Vibration ◽  
Shape Optimization ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges

Free Vibration Analysis of Curved Thin‐Walled Girder Bridges

1992 ◽  
Vol 118 (10) ◽  
pp. 2890-2910 ◽  
Author(s):  
Chang‐Huan Kou ◽  
Steven E. Benzley ◽  
Jian‐Yuan Huang ◽  
D. Allan Firmage
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Girder Bridges ◽  
Thin Walled

Free vibration behaviour of thin-walled concrete box-girder bridge using Perspex sheet experimental model

2021 ◽  
Vol 2 (106) ◽  
pp. 56-76
Author(s):  
V. Verma ◽  
K. Nallasivam
Keyword(s):  
Finite Element ◽  
Free Vibration ◽  
Curved Bridges ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Thin Walled ◽  
Concrete Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

Purpose: Curved box-girder bridges offers an excellent solution to the problems associated with traffic congestion. However, owing to their complex geometry, they are subjected to shear lag, torsional warping and cross-sectional distortion, which must be assessed in their study and design. Furthermore, the dynamic behaviour of curved bridges adds to the complexity of the issue, emphasizing the importance of studying free vibration. The purpose of this study is to numerically model the concrete curved box-girder bridge considering torsional warping, distortion and distortional warping effects and to identify key parameters that influence the free vibration response of the box-girder bridge by validating it with experimental and analytical studies. Design/methodology/approach: The concrete bridge is numerically modelled by means of computationally effective thin-walled box-beam finite elements that consider torsional warping, distortion and distortional warping, which are prominent features of thinwalled box-girders. The free vibration analysis of the concrete curved box-girder bridge is performed by developing a finite element based MATLAB program. Findings: The identification of critical parameters that influence the free vibration behaviour of curved thin-walled concrete box-girder bridges is one of the main findings of the study. Each parameter and its effect has been extensively discussed. Research limitations/implications: The study limits for the preliminary design phase of thin-walled box-girder bridge decks, where a complete three-dimensional finite element analysis is unnecessary. The current approach can be extended to future research using a different method, such as finite element grilling technique on multi-span curved bridges having unequal span.

Free vibration analysis of horizontally curved steel I-girder bridges

2005 ◽  
Vol 43 (4) ◽  
pp. 679-699 ◽  
Author(s):  
Ki-Young Yoon ◽  
Young-Jong Kang ◽  
Young-Joon Choi ◽  
Nam-Hoi Park
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Horizontally Curved ◽  
Girder Bridges ◽  
Curved Steel
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