Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges

70778-2
Recommendations for determining the carrying capacity and...

Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges

Format : Downloadable
Ed. no.1 , July 2018
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    This IRS is the evolution of UIC Leaflet 778-2 "Recommendations for determining the carrying capacity of existing metal structures", 1st edition, July 1986.

    The recommendations in this IRS are intended to be used for determining the load carrying capacity, serviceability and fatigue risks of existing wrought iron and steel bridges considering real traffic loading and the condition of the structure for:

    • Normal rail traffic on the standard track gauge European network for normal situations (persistent situations);
    • The assessment of normal types of metallic bridges made with wrought iron, early steels and more modern steels under normal rail traffic loading.

    This IRS does not cover the requirements for:

    • Steam engines (in particular the static loading and dynamic load effects due to lurching and hammer blow);
    • Special checks where there is a risk of excessive dynamic effects including resonance;
    • Cast iron parts of bridges;
    • Transient situations, e.g. operation of engineering trains and cranes on a rail bridge;
    • Accidental and seismic situations;
    • Some extreme weather situations, for example hydraulic actions due to floods.

    This IRS is not applicable to the design of new bridges. This IRS uses a more precise safety concept without allowances for future growth in the weight and speed of rail traffic that are included in the design requirements for new rail bridges.

    This IRS should not be used for assessing bridges less than 10 years old, except in exceptional circumstances where instructed by the Railway Infrastructure Manager.





    Author
    ISBN978-2-7461-2711-1
    Pages77

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