Effects of Random Road Roughness on Dynamic Impact Factor of Multi-span Super T Girder Bridge with Link Slab due to Moving Vehicles

2019 ◽  
pp. 99-104
Author(s):  
Xuan-Toan Nguyen ◽  
Duy-Thao Nguyen
Keyword(s):  
Impact Factor ◽  
Dynamic Impact ◽  
Road Roughness ◽  
Moving Vehicles ◽  
Girder Bridge ◽  
Dynamic Impact Factor

scholarly journals Dynamic Impact Factor Determination of an Existing Pre-stressed Concrete I-Girder Bridge Using Vehicle-Bridge Interaction Modelling

2021 ◽  
Vol 10 (3) ◽  
pp. 163-176
Author(s):  
Shuvrodeb Adhikary ◽  
Shohel Rana ◽  
Jerin Tasnim ◽  
Nazrul Islam
Keyword(s):  
Impact Factor ◽  
Dynamic Model ◽  
Superposition Method ◽  
Dynamic Impact ◽  
Mode Superposition Method ◽  
Road Roughness ◽  
Girder Bridge ◽  
Dynamic Impact Factor ◽  
Interaction Problem

The dynamic Impact Factor (IM) of a bridge is influenced by many factors, including Vehicle-Bridge Interaction (VBI), vehicle speed and road roughness. This paper represents the dynamic effects of moving vehicles and the determination of IM of an existing Pre-stressed concrete I-girder bridge utilizing VBI modeling. Evaluation of the IM is expected to provide valuable information for condition assessment and management of the existing bridge. The interaction problem between the vehicle and the bridge includes a dynamic model for the bridge structure subsystem, a dynamic model for the vehicle subsystem, interaction constraints, road roughness modelling and numerical solution techniques for the dynamic systems. The Half-car model is utilized for modelling of the vehicle dynamics and the bridge dynamic model is idealized according to Finite Element Method (FEM). Then FEM along with the mode superposition method are utilized for determining the Equation of Motion (EOM) for the bridge subsystem. D’Alembert’s principle is used for developing EOM for the vehicle subsystem. The interaction between vehicle vibration and bridge vibration is established through the contact forces between the wheels and the bridge by employing the compatibility relationship between the contact points and by applying the static equilibrium condition. Lastly, Newmark’s-β method is used for solving the coupled mathematical model of the vehicle and bridge interaction problem to determine the responses of the two sub-systems. The whole procedure is then performed for different vehicle speeds and various bridge deck surface roughness conditions to determine the dynamic impact on the existing I-girder bridge named Teesta Bridge located in Bangladesh.

Effects of Random Road Roughness on Dynamic Impact Factor of Cable-Stayed Bridge Subjected to Moving Vehicle

2021 ◽  
pp. 147-156
Author(s):  
Xuan-Toan Nguyen ◽  
Duy-Thao Nguyen ◽  
Van-Duc Tran ◽  
Thi-Kim-Loan Nguyen
Keyword(s):  
Impact Factor ◽  
Dynamic Impact ◽  
Moving Vehicle ◽  
Cable Stayed Bridge ◽  
Road Roughness ◽  
Dynamic Impact Factor

Vibration and Dynamic Impact Factor Analysis of the Steel Truss Bridges Subjected to Moving Vehicles

2021 ◽  
pp. 522-536
Author(s):  
Toan Nguyen-Xuan ◽  
Loan Nguyen-Thi-Kim ◽  
Thao Nguyen-Duy ◽  
Duc Tran-Van
Keyword(s):  
Factor Analysis ◽  
Impact Factor ◽  
Dynamic Impact ◽  
Truss Bridges ◽  
Moving Vehicles ◽  
Steel Truss ◽  
Dynamic Impact Factor ◽  
Steel Truss Bridges

Investigation of Dynamic Impact Factor of Metal Multipipe Culvert under Shallow Cover

2021 ◽  
Author(s):  
Issam Khoury ◽  
Husam H. Hussein ◽  
Shad M. Sargand ◽  
Fouad T. Al Rikabi
Keyword(s):  
Impact Factor ◽  
Dynamic Impact ◽  
Dynamic Impact Factor

scholarly journals Determination of dynamic impact factor for continuous girder bridge due to vehicle braking force by finite element method and experimental

2017 ◽  
Vol 39 (2) ◽  
pp. 149-164
Author(s):  
Nguyen Xuan Toan ◽  
Tran Van Duc
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Impact Factors ◽  
Dynamic Impact ◽  
Bending Vibration ◽  
Continuous Girder Bridge ◽  
Reaction Forces ◽  
Girder Bridge ◽  
Dynamic Impact Factor ◽  
Element Method

In this study, the finite element method (FEM) is used to investigate the dynamic response of continuous girder bridge due to moving three-axle vehicle . Vertical reaction forces of axles that change with time make bending vibration of girder significantly  increase. The braking in the first span is able to create response in other spans. In addition, the dynamic impact factors are investigated by both FEM and experiment for Hoa Xuan bridge. The results of this study provide an improved understanding of the bridge dynamic behavior and can be used as additional references for bridge codes by practicing engineers.

Investigation on the dynamic impact factor of a concrete filled steel tube butterfly arch bridge

2021 ◽  
pp. 113614
Author(s):  
Shiqiang Qin ◽  
Jiacheng Feng ◽  
Yun-Lai Zhou ◽  
Chao Li ◽  
Xuejin Huo ◽  
...  
Keyword(s):  
Impact Factor ◽  
Steel Tube ◽  
Dynamic Impact ◽  
Arch Bridge ◽  
Concrete Filled Steel Tube ◽  
Dynamic Impact Factor

Design on Dynamic Performance of Highway Bridges to Moving Vehicular Loads

2013 ◽  
Vol 574 ◽  
pp. 43-51 ◽  
Author(s):  
Qing Fei Gao ◽  
Zong Lin Wang ◽  
Bin Qiang Guo ◽  
Hao Ran Bu ◽  
Wei Xiong
Keyword(s):  
Finite Element ◽  
Dynamic Performance ◽  
Highway Bridges ◽  
Design Codes ◽  
Dynamic Impact ◽  
Finite Element Program ◽  
Moving Vehicles ◽  
Element Program ◽  
Deflection Limit ◽  
Dynamic Impact Factor

Based on the survey of existing highway bridges, there are a large number of flaws induced by moving vehicles. The most important cause of this phenomenon is the lack of design codes on dynamic performance of highway bridges to moving vehicular loads. The existing theory of vehicle-bridge interaction is reviewed. Then the home-code program VBCVA combined with finite element program ANSYS is introduced to analyze the problem of vehicle-bridge interaction. Also, the existing design indexes of dynamic performance are discussed, such as dynamic impact factor, deflection limit, and acceleration. On the basis of above theory and program, the framework of design on dynamic performance of highway bridges to moving vehicular loads is proposed.

Influence of Roadway Irregularities on Dynamic Impact Factor of Bridges

2000 ◽  
Vol 16 (20) ◽  
pp. 388-395
Author(s):  
Young Suk PARK ◽  
Dong Ku SHIN ◽  
Tae Ju CHUNG ◽  
Wontae LEE
Keyword(s):  
Impact Factor ◽  
Dynamic Impact ◽  
Dynamic Impact Factor
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