Improvement of the load capacity of the road overpass as a result of repairs after breakage caused by vehicle impacts

Damages of spans of the overpass caused by impact of underpassing vehicles are relatively frequent. Objects that use prefabricated load-bearing elements that are not designed for such impacts are particularly exposed. After impact, such structural elements suffer extensive damage that must be repair...

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Bibliographic Details
Published in:MATEC Web of Conferences 2019, Vol.284, p.1004
Main Authors: Miśkiewicz, Mikołaj, Bruski, Dawid, Chróścielewski, Jacek, Wilde, Krzysztof
Format: Article
Language:English
Subjects:
Breakage
Impact analysis
Impact damage
Impact strength
Load bearing elements
Maintenance
Numerical models
Prefabrication
Prestressing
Structural damage
Structural members
Tendons
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Summary:Damages of spans of the overpass caused by impact of underpassing vehicles are relatively frequent. Objects that use prefabricated load-bearing elements that are not designed for such impacts are particularly exposed. After impact, such structural elements suffer extensive damage that must be repaired. Taking advantages of this recovery actions it is worth to perform strengthening that will protect object against possible future impacts. In this study the influence of the structural strengthening of the damaged overpass on its strength parameters is investigated. For this purpose the advanced computational model was created. The numerical model includes the response of the reinforcement and prestressing tendons. This model enables precise description of damage caused due to the vehicle‘s impact and further analysis of re-impact of the strengthened structure.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201928401004