Critical Loading Events for the Assessment of Medium Span Bridges

Colin C. Caprani; S.A. Grave; E.J. O'Brien; A.J. O'Connor

doi:10.21427/d7vr6t

Critical Loading Events for the Assessment of Medium Span Bridges

Colin C. Caprani, S.A. Grave, E.J. O'Brien, A.J. O'Connor

Technological University Dublin

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper describes the simulation of free-flowing traffic across bridges to predict the characteristic values for bridge load effects such as bending moment and shear force. The results of these simulations are then used to demonstrate that, in predicting the characteristic extreme load effects to which a bridge may be subjected, it is not sufficient to solely model one-or two-truck presence events. It is shown that loading events involving three or more trucks may need be included in the model for short to medium spans. The critical loading events for a particular load effect are strongly dependent on the span and the shape of the influence line.

Original language	English
Number of pages	11
DOIs	https://doi.org/10.21427/d7vr6t
Publication status	Published - 2002
Event	6th International Conference on Computational Structures Technology - Stirling, United Kingdom Duration: 1 Jan 2002 → …

Conference

Conference	6th International Conference on Computational Structures Technology
Country/Territory	United Kingdom
City	Stirling
Period	1/01/02 → …

Keywords

simulation
free-flowing traffic
bridges
characteristic values
bridge load effects
bending moment
shear force
extreme load effects
loading events
span
influence line

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10.21427/d7vr6tLicence: CC BY-NC-SA

Cite this

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AU - Caprani, Colin C.

AU - Grave, S.A.

AU - O'Brien, E.J.

AU - O'Connor, A.J.

PY - 2002

Y1 - 2002

N2 - This paper describes the simulation of free-flowing traffic across bridges to predict the characteristic values for bridge load effects such as bending moment and shear force. The results of these simulations are then used to demonstrate that, in predicting the characteristic extreme load effects to which a bridge may be subjected, it is not sufficient to solely model one-or two-truck presence events. It is shown that loading events involving three or more trucks may need be included in the model for short to medium spans. The critical loading events for a particular load effect are strongly dependent on the span and the shape of the influence line.

AB - This paper describes the simulation of free-flowing traffic across bridges to predict the characteristic values for bridge load effects such as bending moment and shear force. The results of these simulations are then used to demonstrate that, in predicting the characteristic extreme load effects to which a bridge may be subjected, it is not sufficient to solely model one-or two-truck presence events. It is shown that loading events involving three or more trucks may need be included in the model for short to medium spans. The critical loading events for a particular load effect are strongly dependent on the span and the shape of the influence line.

KW - simulation

KW - free-flowing traffic

KW - bridges

KW - characteristic values

KW - bridge load effects

KW - bending moment

KW - shear force

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KW - span

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ER -

Critical Loading Events for the Assessment of Medium Span Bridges

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Keywords

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