Development of dynamic impact factor for performance evaluation of existing multi-girder concrete bridges

2010 ◽  
Vol 32 (1) ◽  
pp. 21-31 ◽  
Author(s):  
Lu Deng ◽  
C.S. Cai
Keyword(s):  
Performance Evaluation ◽  
Impact Factor ◽  
Concrete Bridges ◽  
Dynamic Impact ◽  
Dynamic Impact Factor

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 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.

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

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

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

scholarly journals Experimental Dynamic Impact Factor Assessment of Railway Bridges through a Radar Interferometer

2019 ◽  
Vol 11 (19) ◽  
pp. 2207 ◽  
Author(s):  
Massimiliano Pieraccini ◽  
Lapo Miccinesi ◽  
Ali Abdorazzagh Nejad ◽  
Azadeh Naderi Nejad Fard
Keyword(s):  
Impact Factor ◽  
State Of The Art ◽  
Bridge Engineering ◽  
Reliable Measurement ◽  
Dynamic Impact ◽  
Northern Iran ◽  
Railway Bridges ◽  
Remote Sensor ◽  
Field Assessment ◽  
Dynamic Impact Factor

The dynamic impact factor (IM) is a widely accepted parameter to account for the effect of vehicles on bridges. An accurate evaluation of this IM is of paramount importance in bridge engineering, both for designing safe and economical new bridges, and for the assessment of the existing ones. At the state of the art, the current procedure for the experimental assessment of the IM of a bridge relies upon the deployment of a sensor network. The aim of this article is to propose the use of a remote sensor, the interferometric radar, for assessing the IM without the deployment of any sensor on the bridge, with evident advantages in terms of cost, time and safety of the workers. Two different case studies of bridges in Northern Iran are reported. In both cases the interferometric radar has been demonstrated an effective and reliable measurement equipment for this kind of in-field assessment.

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