Abstract
U radu je dan pregled mehanizama razaranja i ostecenja zidanih svođenih mostova, metoda ispitivanja za utvrđivanje svojstava postojecih konstrukcija te konzervativnih i sofisticiranih metoda ocjenjivanja. Na temelju analiza svođenih mostova malih raspona provedenih trima konzervativnim metodama ocjenjivanja i dodatnih razmatranja ucinaka pojacavanja i prilagodbe ovih mostova u njihovom vijeku trajanja suvremenim prometnim zahtjevima, razvijena je izvorna procedura preliminarnog ocjenjivanja koja sadržava tri osnovna koraka: prikupljanje podataka, ocjenjivanje svoda i ocjenjivanje kolnicke ploce.
Highlights
The existing masonry arch bridges were created in different periods, in different historical situations, and under different environmental circumstances
Adequate assessment of the load-carrying capacity of masonry arch bridges is a key to their continued service, and is aimed at ensuring that strengthening is used where and when needed only
Based on the presented example of a bridge built more than 100 years ago, we may notice that changes made to the masonry arch bridge due to present-day traffic demands may further limit its capacity
Summary
The existing masonry arch bridges were created in different periods, in different historical situations, and under different environmental circumstances. In order to accurately assess bridge condition, and to determine an appropriate repair and strengthening method, it is first of all necessary to identify deterioration mechanisms and understand the causes of damage that lead to decay of the structure as a whole or its individual parts. Such damage needs to be identified at the existing structure using adequate inspection methods by which structural properties affected by the damage may be established
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