Dynamic Load on Continuous Multi-Lane Bridge Deck From Moving Vehicles

Zhu, Xinqun; Law, S.S.

doi:10.1006/jsvi.2001.3996

Cited by 89 publications

(74 citation statements)

References 16 publications

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“…The frequencies obtained by [27] and used herein are in general very close to those obtained by the Rayleigh-Ritz method [16,17]. The difference may be due to the effect of intermodal coupling neglected in the Rayleigh-Ritz method, which affects the frequencies of the combined bending-torsion-flexion modes.…”

Section: Isotropic Bridge Decksupporting

confidence: 60%

“…2); this is similar to that used by Marchesiello et al [16] and Zhu and Law [17]. To determine the interaction forces of the vehicle/bridge deck, one must establish for each contact point between the bridge deck and the vehicle the displacements of the end of the springs and dashpots that are used to model the tires (Fig.…”

Section: Vehicle Modelingmentioning

confidence: 99%

“…The algorithm of resolution is the same of that used in reference [17]. Its implementation contains two loops (Fig.…”

Section: Resolution Algorithmmentioning

confidence: 99%

“…The bridge deck is modeled as an orthotropic, three-span plate. The truck is modeled by the H20-44 model, with seven DOF [16,17]. The road surface roughness is modeled by a random function characterized by a PSD and spectral roughness coefficient.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic amplification of a multi-span, continuous orthotropic bridge deck under vehicular movement

Rezaiguia

Ouelaa

Laefer

et al. 2015

Engineering Structures

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__________________________________________________________________________The response of a multi-span, continuous orthotropic bridge deck during truck loading is investigated to better understand the dynamic interaction between moving vehicles and highway bridge decks. The present study is based on a recently published, semi-analytical approach for free vibration in which the modal superposition method incorporates intermodal coupling. Herein, the bridge deck is modeled as a jointless, multi-span, orthotropic plate, and the vehicle is modeled as a dynamic, multi-body system. The road surface roughness randomness is modeled as a normal, stationary, random process described by its PSD. The coupled equations of the motion vehicle/bridge deck are solved by Newmark's method. An iterative process in each time step is performed to find the equilibrium between the bridge deck and vehicle tires using an uncoupled algorithm previously developed by other authors.Two numerical application examples are presented: an isotropic and an orthotropic, threespan bridge deck both crossed by an AASHTO-based vehicle model. In example one, the intermodal coupling affects the dynamic deflection of bridge deck but only slightly. Example two demonstrates that the loading mode and the vehicle speed have a significant influence on the Dynamic Amplification Factor. However, the most important parameter to affect the 2 dynamic vehicle/bridge deck interaction force is the road's surface roughness, as has been shown for other bridge types under various load conditions. Key-words:

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Section: Isotropic Bridge Decksupporting

confidence: 60%

Section: Vehicle Modelingmentioning

confidence: 99%

“…The algorithm of resolution is the same of that used in reference [17]. Its implementation contains two loops (Fig.…”

Section: Resolution Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamic amplification of a multi-span, continuous orthotropic bridge deck under vehicular movement

Rezaiguia

Ouelaa

Laefer

et al. 2015

Engineering Structures

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“…It is necessary to solve both subsystems while ensuring compatibility at the contact points (i.e., displacements of the bridge and the vehicle being the same at the contact point of the wheel with the roadway) (González, 2010). Several approaches on implementing VBI simulations are available in the literature (Green et al 1995, Wang et al 1996, Yang and Fonder 1996, Green and Cebon 1997, Zhu and Law 2002, Yang and Lin 1995, Henchi et al 1998, Yang et al 2004b, Kim et al, 2005 This paper uses the iterative approach described by Cebon 1994, Green andCebon 1997) to ensure compatibility between the two sub-systems. This approach has shown good agreement with other techniques available to model the interaction between the vehicle and the bridge (González, 2010).…”

Section: A(t) + C V(t) + K Y(t) = F(t)mentioning

confidence: 99%

A bridge-monitoring tool based on bridge and vehicle accelerations

Hester

González

2014

Structure and Infrastructure Engineering

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Previous research on damage detection based on the response of a structure to a moving load has reported decay in accuracy with increasing load speed. Using a 3-D vehicle-bridge interaction model, this paper shows that the area under the filtered acceleration response of the bridge increases with increasing damage, even at highway load speeds. Once a datum reading is established, the area under subsequent readings can be monitored and compared to the base line reading, if an increase is observed it may indicate the presence of damage. The sensitivity of the proposed approach to road roughness and noise is tested in several damage scenarios.The possibility of identifying damage in the bridge, by analysing the acceleration response of the vehicle traversing it is also investigated. While vehicle acceleration is shown to be more sensitive to road roughness and noise and therefore less reliable than direct bridge measurements, damage is successfully identified in favourable scenarios.

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A simple finite element model for vibration analyses induced by moving vehicles

Lin

Hsueh

et al. 2006

Int. J. Numer. Meth. Engng.

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SUMMARYThis study developed a simple finite element method combining the moving wheel element, springdamper element, lumped mass and rigid link effect to simulate complicated vehicles. The advantages of this vehicle model are (1) the dynamic matrix equation is symmetric, (2) the theory and formulations are very simple and can be added to a standard dynamic finite element codes easily and (3) very complicated vehicle models can be assembled using the proposed elements as simple as the traditional finite element method. The Fryba's solution of a simply supported beam subjected to a moving twoaxle system was analysed to validate this finite element model. For a number of numerical simulations, the two solutions are almost identical, which means that the proposed finite element model of moving vehicles is considerably accurate. Field measurements were also used to validate this vehicle model through a very complicated finite element analysis, which indicates that the current moving vehicle model can be used to simulate complex problem with acceptable accuracy.

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Dynamic Load on Continuous Multi-Lane Bridge Deck From Moving Vehicles

Cited by 89 publications

References 16 publications

Dynamic amplification of a multi-span, continuous orthotropic bridge deck under vehicular movement

Dynamic amplification of a multi-span, continuous orthotropic bridge deck under vehicular movement

A bridge-monitoring tool based on bridge and vehicle accelerations

A simple finite element model for vibration analyses induced by moving vehicles

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