Fatigue assessment procedure for metal bridge decks
Journal Title: Roads and Bridges - Drogi i Mosty - Year 2012, Vol 11, Issue 1
Abstract
Deck slabs are the most vulnerable elements of bridges. In case of metal decks (steel, aluminium) the frequently observed damage is due to fatigue cracks. Therefore a fatigue assessment procedure is important in design of new bridges and also in evaluation of existing ones. In both cases the reliable fatigue assessment can be decisive for estimated service life of a bridge. The main steps of the fatigue assessment procedure according to Eurocodes have been described in the paper. This procedure is based on safe life design method coupled with nominal stress convention. The procedure application for fatigue assessment of an aluminium bridge deck has been also presented. On the basis of FEM calculation and fatigue assessment according to Eurocodes the factors determining the fatigue life of a metal deck have been established and evaluated. This example can be easily used for such kind of assessment for an arbitrary metal deck.
Authors and Affiliations
Tomasz Siwowski
Keywords
Related Articles
- EP ID EP69441
- DOI -
- Views 109
- Downloads 0
Ocena właściwości ochronnych względem stali zbrojeniowej betonów na cementach zawierających popioły wapienne
W artykule przedstawiono badania właściwości ochronnych betonu wykonanego na cementach zawierających lotne popioły wapienne. Badania prowadzone metodami elektrochemicznymi miały na celu określenie podatności korozyjnej...
Comparative analysis of strains and durability of asphalt pavement of perpetual and standard type
This paper analyses the key strains and fatigue performance of the following types of road pavements using fatigue cracking and subgrade rutting as the evaluation criteria: conventional asphalt pavement and pavement stru...
Changes of a radius of curvature of a soil-steel shell bridge during construction
The paper concerns soil-steel bridge structures with a circular-shaped top of a shell cross-section, made of corrugated steel plates. During backfilling, the shell uplifts in the crown, and narrows in the corners. On the...
Analysis of time intervals distribution between vehicles on the roadway around central island of small roundabouts
A model of distribution of the time intervals between the vehicles on a roundabout envelope, that is applied to perform the calculations of the traffic conditions and the capacities of small roundabouts, has a significan...
Stiffness of layered shells in soil-steel bridge structures
In the case of construction of a maximum span soil-steel bridge structure, the cover plate, in the form of a circumferential shell, mounted on the base shell, is used. The bolted connection of the cover plate is flexible...