Enevoldsen, I.

Kirkegaard, Poul Henning

Nielsen, Søren R. K.

English

Vibration of a bridge structure due to the passage of vehicles is an important consideration in the design of bridges. Further, a common problem in bridge engineering practice in these years is the upgrading of minor highway bridges (=5-20 m) to carry heavier loads partly due to a tendency of heavier trucks moving at larger speeds, and partly because the authorities want to permit transportation of special heavy goods at a larger part of the road net. These needs will in many cases cause the strengthening of the bridges becomes necessary. In order to keep the expenses of such strengthening projects at a minimum, it is necessary to perform accurate estimates of the dynamic amplification factor (defined as the dynamic load effect divided by the static load effect from the vehicles), so this quantity is neither over- nor underestimated. The principal aims of the present report are to present the results obtained using the numerical models given in details in "Heavy Vehicles on Minor Highway Bridges : dynamic modelling of vehicles and bridges". The models are established using a ordinary vehicle which consists of a 48 t Scania with a 3 axle tractor and a 3 axle trailer, joined in a flexible hinge. Each axle is suspended on two elastic supports modelling the wheels.<br/

    Aalborg UniversitetHeavy Vehicles on Minor Highway Bridgescalculation of dynamic impact factors from selected crossing scenariosKirkegaard, Poul Henning; Nielsen, Søren R. K.; Enevoldsen, I.Publication date:1997Document VersionPublisher's PDF, also known as Version of recordLink to publication from Aalborg UniversityCitation for published version (APA):Kirkegaard, P. H., Nielsen, S. R. K., & Enevoldsen, I. (1997). Heavy Vehicles on Minor Highway Bridges:calculation of dynamic impact factors from selected crossing scenarios. Dept. of Building Technology andStructural Engineering. Structural Reliability Theory Vol. R9722 No. 172General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: December 27, 2020

Heavy Vehicles on Minor Highway Bridges:calculation of dynamic impact factors from selected crossing scenarios

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Heavy Vehicles on Minor Highway Bridges:calculation of dynamic impact factors from selected crossing scenarios

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