STATIC AND DYNAMIC LOADING TEST OF A RAILWAY BRIDGE

A case study for assessing the strength of a recently mal constructed Iraqirailway bridge was carried out. The 48.5 m long Reinforced Concrete Bridge shows a Permanent deflection of more than 3 cm at its mid span panel. Responsible Authorities feared of the safety of this bridge and asked for Struct...

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Bibliographic Details
Published in:Acta Technica Corvininesis 2015-04, Vol.8 (2), p.145
Main Author: Darwish, Alaa M
Format: Article
Language:English
Subjects:
Bridges
Concrete
Construction
Load
Railroads
Reinforced concrete
Shear stress
Trains
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Summary:A case study for assessing the strength of a recently mal constructed Iraqirailway bridge was carried out. The 48.5 m long Reinforced Concrete Bridge shows a Permanent deflection of more than 3 cm at its mid span panel. Responsible Authorities feared of the safety of this bridge and asked for Structural engineering consultancy. The overall bridge elements; piers, bearings, super structure and materials strength have been verified in details, but in this paper the concentration will be focused at a novel method used to perform a loading test. The heaviest available locomotive-weighing 120 tons- was used to conduct the static and dynamic loading test. Surveying team was instructed to tabulate the levels of selected points before and after the passing of the testing locomotive and during its stoppage at certain positions. The bridge showed an acceptable performance under the actual loading of the mentioned locomotive and also it complied with the resisting requirements of the Cooper E-80 standard loading for railway bridges.
ISSN:2067-3809