Impact coefficient and reliability of mid-span continuous beam bridge under action of extra heavy vehicle with low speed

Lundbäck, Bo; You-zhi, Wang; Hu, Peng; Yuan, Quan

doi:10.1007/s11771-015-2668-6

Cited by 14 publications

(7 citation statements)

References 1 publication

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“…Due to isolation effects of vehicle suspension system, effective spatial frequency interval (i.e., ( , )) has significant effects on vehicle vibration and is calculated using (13). Equation 12is solved by trigonometric series method as shown in (14) and (15).…”

Section: Deck Roughnessmentioning

confidence: 99%

“…Ding et al (2009) [12] explored the relationship between deck roughness and dynamic load coefficient through evolutionary spectral method. Liu et al (2015) [13] and Jiang et al (2011) [14] emphasized the influence of speed and deck roughness on dynamic load testing. Huang et al (2011) [15] showed that fundamental frequency and impact coefficient have close correlation in dynamic load testing.…”

Section: Introductionmentioning

confidence: 99%

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A Rapid Detection Method for Bridges Based on Impact Coefficient of Standard Bumping

Liu

Zhang

Wang³

2018

Mathematical Problems in Engineering

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The evaluation method of load transfer efficiency using falling weight deflectometer is unworkable in remote mountain areas and transportation difficult region. Therefore, a novation method of load transfer efficiency evaluation is proposed using the index of amplitude ratio. Finite element method is applied to study the influence of dowel bar parameters (diameter, length, spacing, and elastic modulus) and pavement structures parameters (thickness and modulus) on load transfer efficiency, frequency, and the ratio of amplitude. Results of finite element model show that the effects of dowel bar and pavement structure parameters on load transfer efficiency and the ratio of amplitude are similar. The load transfer efficiency, frequency, and the ratio of amplitude enhance with the increase of dowel bar diameter, length, and elastic modulus and the decrease of dowel bar spacing. The subgrade modulus has more significant influence on the load transfer efficiency, frequency, and the ratio of amplitude than other pavement parameters. Polynomial function method is utilized to established load transfer mode between deflection-based load transfer efficiency and the ratio of amplitude. The feasibility and reliability of new method is verified by static and dynamic load test. All results are helpful for the development of highway engineering and airport engineering.

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Section: Deck Roughnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Rapid Detection Method for Bridges Based on Impact Coefficient of Standard Bumping

Liu

Zhang

Wang³

2018

Mathematical Problems in Engineering

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“…There are a number of studies on train-truck interaction problem by using the finite element adaptation, and the studies [9,10] have suggested some solutions of train-truck interaction using FEM. For predicting vehicle induced local responses of a skewed girder bridge [11], and for impact coefficient of mid-span continuous beam bridges interaction due to passage of heavy duty trucks and trains over flexible structures such as bridges [12] have investigated the interaction of heavy-vehicles with structures. Using a half car model, [13] has studied the passenger comfort considering a vehicle moving on a flexible structure with constant velocities.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of Flexible Structures Under The Influence of Moving Multiple Vehicles

Koç

Esen

Eroğlu

et al. 2018

El-Cezeri Fen Ve Mühendislik Dergisi

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In this study, the parameters affecting the dynamic behavior of flexible structures under the influence of multiple vehicle passages are examined in detail. The flexible structure considered in the study is considered as a bridge girder with simple supported boundary conditions which modelled according to Euler-Bernoulli thin beam theory. The equations of motion of the bridge beam in contact with the vehicle passing over the bridge were obtained by using the Lagrange equation after the kinetic and potential energies of the system were obtained. The second-order differential equations representing the motion of the system are transformed from the first-order state space matrix representation to the first-order state using the state variables specified in the study. The system of differential equations is then solved with high accuracy using a special program prepared in the MATLAB commercial software using the Runge-Kutta algorithm from the fourth degree in the time domain.

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“…Some more accurate tools of engineering calculations of the dynamic interaction using FEM have been proposed by (Esen, 2011(Esen, , 2015(Esen, , 2013Kahya, 2012) . Using analytical methods for simple cases neglecting damping effects and assuming uniform beam cross sections (Esmailzadeh and Jalili, 2003;Liu et al, 2015;Wyss et al, 2011) have studied the subject in terms of vehicle structure interaction problems. Using a two-axle half car model, (Lou, 2005) has studied the wheel -rail interaction and dynamics of a railway bridge.…”

Section: Introductionmentioning

confidence: 99%

“…This method can be applied to predict the desired output parameters when the database of the problem represents all relationships. ANN have been used in different engineering applications such as mechanical vibrations (Koide et al, 2014;Lagaros and Papadrakakis, 2012;Liu et al, 2015;Martínez-Martínez et al, 2015;Perez-Ramirez et al, 2016) rail rolling processing (Altınkaya et al, 2014), creep modelling (Düğenci et al, 2015), steel projectile penetration depth (Hosseini and Dalvand, 2014) and internal combustion engines to estimate some important parameters of fuels on emissions (Cay, 2013;Czarnigowski, 2010). The uses of ANN in the field of defence systems have recently begun to increase.…”

Section: Introductionmentioning

confidence: 99%

Tip Deflection Determination of a Barrel for the Effect of an Accelerating Projectile Before Firing Using Finite Element and Artificial Neural Network Combined Algorithm

Koç

Esen

Çay

2016

Lat. Am. j. solids struct.

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For realistic applications, design and control engineers have limited modelling options in dealing with some vibration problems that hold many nonlinearity such as non-uniform geometry, variable velocity loadings, indefinite damping cases, etc. For these reasons numerous time consuming experimental studies at high costs must be done for determining the actual behaviour such nonlinear systems. However, using advantages of multiple computational methods like Finite Element Method (FEM) together with an Artificial Intelligence (ANN), many complicated engineering problems can be handled and solved to some extent. This study, proposes a new collective method to deal with the nonlinear vibrations of the barrels in order to fulfil accurate shooting expectancy. Using known analytical methods, in practical, to determine dynamic behaviour of the barrel beam is not possible for all conditions of firing that include numerous varieties of ammunition for different purposes, and each projectile of different ammunition has different mass and exit velocity. In order to cover all cases this study proposes a new method that combines a precise FEM with ANN, and can be used for determining the exact dynamic behaviour of a barrel for some cases and then for precisely predicting the behaviour for all other possible cases of firing. In this study, the whole nonlinear behaviour of an antiaircraft barrel were obtained with 3.5% accuracy errors by ANN trained by FEM using calculated analysis results of ammunitions for a particular range. The proposed FEM-ANN combined method can be very useful for design and control engineers in design and control of barrels in order to compensate the effect of nonlinear vibrations of a barrel for achieving a higher shooting accuracy; and can reduce high-cost experimental works.

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Impact coefficient and reliability of mid-span continuous beam bridge under action of extra heavy vehicle with low speed

Cited by 14 publications

References 1 publication

A Rapid Detection Method for Bridges Based on Impact Coefficient of Standard Bumping

A Rapid Detection Method for Bridges Based on Impact Coefficient of Standard Bumping

Dynamic Analysis of Flexible Structures Under The Influence of Moving Multiple Vehicles

Tip Deflection Determination of a Barrel for the Effect of an Accelerating Projectile Before Firing Using Finite Element and Artificial Neural Network Combined Algorithm

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