Simulation for the Truck-bridge Impact

Simulate the truck-bridge impact and discuss the damage inside the bridge due to impact.

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Nonlinear finite element simulation for the impact between over-high truck and bridge-superstructure Proc. 7th Int. Conf. Shock & Impact Loads on Structures, 2007 Download
Computer Simulation for the Impact between Over-high Truck and Composite Viaduct Computer and Communications, 2007 Download
Impact Simulation for Over-high Truck and viaduct based on High Precision Nonlinear Finite Element Analysis Journal of Shijiazhuang Railway Institute, 2007 Download

Nonlinear finite element simulation for the impact between over-high truck and bridge-superstructure
Proc. 7th Int. Conf. Shock & Impact Loads on Structures, Oct. 17-19, 2007, Beijing, China, 387-394
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Abstract: According to statistic data supplied by relative departments, about half of the bridge-superstructures in Beijing have been impacted by over-high trucks. And over 20% of the bridge-superstructure failures in Beijing are due to over-high trucksĄŻ impact. Hence it is an important problem that needs to be studied for the safety of the traffic system. Current researches on the impacts between vehicles and structures are mostly focused on ship-bridge pier, car-bridge pier and car-barrier impact. The works on the impact between over-high truck and bridge-superstructure is lacked. This paper presents the nonlinear finite element (FE) simulation for the impact between over-high truck and bridge-superstructure. Besides the nonlinearity of geometry, material and contact, a more accurate reinforced concrete model with FE package of MSC.MARC is adopted in the FE model to give a more realistic simulation for the bridge girders. The whole impact process is simulated and the damages in truck and bridge-superstructures are discussed.
Keywords: Bridge, Over-high truck, Impact, Simulation, Nonlinear

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Computer Simulation for the Impact between Over-high Truck and Composite Viaduct
Computer and Communications, 25(3), 2007, 65-69.

Abstract: Accidents of impact between over-high trucks and viaducts happen frequently. 20% of failures of viaducts in Beijing are because of over-high trucks impact. Detailed study on the mechanism of truck-viaduct impact is important to assess the damage of impact to the viaducts. Due to the difficulties of experimental research on this problem, computer simulation has obviously advantages. The steel-concrete composite bridge has been widely used in bridges because it can fully take the advantages of the two materials. But due to the thin thickness of steel plate at the bottom of the bridge, when the steel tension zone is damaged by impact, the safety of the whole structure will be seriously threatened. So the truck impact for composite viaducts should be considered. This paper presents the high precision simulation for the truck- composite viaduct impact based on high performance nonlinear finite element analysis. The computational results show that the impact may result in serious damage to the bridges and protective equipment should be given for composite bridges.
Key words: Composite structure, viaduct, impact, nonlinear, finite element

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Impact Simulation for Over-high Truck and viaduct based on High Precision Nonlinear Finite Element Analysis
Journal of Shijiazhuang Railway Institute, 20(1), 2007, 29-34.

Abstract: Accidents of impact between over-high trucks and viaducts happen frequently. Detailed study on the mechanism of truck-viaduct impact is important to setup the computational method of impact. This paper presents the high precision simulation for the truck-viaduct impact based on high performance nonlinear finite element analysis. And the influence of truck speed to the damage of the bridge is discussed. The computational results can be used for the further studies on truck-viaduct impact problem.
Key words: Impact, viaduct, truck, simulation, nonlinear

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