Communications - Scientific Letters of the University of Zilina 2022, 24(1):D37-D45 | DOI: 10.26552/com.C.2022.1.D37-D45

Dynamic Response of a Road Bridge Subjected to Passing a Heavy Vehicle over a Standard Irregularity - Numerical Modelling and Experimental Testing

Milan Moravčík
Faculty of Civil Engineering, University of Zilina, Zilina, Slovakia

The paper presents an analysis of an actual problem related to dynamic effects to road bridges due to travelling a heavy vehicle over the bridge. Numerical simulations of the dynamic response are applied on a fictitious simple beam of the length Lb = 52 m with an artificial irregularity at mid-span, corresponding to a characteristic span L(b5) = 52 m of the ten-span continuous box girder bridge. A heavy four-axle truck mv = 32 t is used for dynamic excitation, travelling over the bridge at passing speed of 70 km / h. The obtained results are compared to results of the experimentally tested ten-span continuous pre-stressed reinforced concrete girder bridge at the same speed.

Keywords: dynamic bridge deflection, moving vehicle load, modal superposition, numerical simulation, dynamic testing
Grants and funding:

Presented result were obtained with the support of project VEGA No. 12/0045/19, Slovak Republic.

Received: May 5, 2021; Accepted: June 21, 2021; Prepublished online: October 27, 2021; Published: January 1, 2022  Show citation

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Moravčík, M. (2022). Dynamic Response of a Road Bridge Subjected to Passing a Heavy Vehicle over a Standard Irregularity - Numerical Modelling and Experimental Testing. Communications - Scientific Letters of the University of Zilina, 24(1), D37-45. doi: 10.26552/com.C.2022.1.D37-D45
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