Cumulative Impact of Heavy Permit-Trucks on Steel Bridges

by Michel Bruneau, (M.ASCE), Univ of Ottawa, Ottawa, Canada,
Murat Dicleli, Univ of Ottawa, Ottawa, Canada,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

In many parts of North America, special permits are issued to heavy vehicles without considering their cumulative effect on steel bridge components. Such overloads may initiate crack propagation and therefore shorten the service life of bridges. Here, a fatigue-based methodology is developed to assess the reduction in service life of bridges due to heavy permit-trucks.

Subject Headings: Steel bridges | Bridge components | Bridge-vehicle interaction | Bridge tests | Service life | Fatigue tests | Fatigue life | North America

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