Conformity assessment of two orthotropic steel deck bridges in Bulgaria according to present requirements | Zendy

Lazar Georgiev | Zendy; Stoyan Ivanov | Zendy

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Conformity assessment of two orthotropic steel deck bridges in Bulgaria according to present requirements

Author(s) -

Lazar Georgiev,

Stoyan Ivanov

Publication year - 2020

Publication title -

iop conference series materials science and engineering

Language(s) - English

Resource type - Journals

eISSN - 1757-899X

pISSN - 1757-8981

DOI - 10.1088/1757-899x/951/1/012013

Subject(s) - deck , orthotropic material , structural engineering , girder , bridge (graph theory) , eurocode , span (engineering) , engineering , superstructure , finite element method , medicine

Two orthotropic steel deck (OSD) bridges along “Hemus” highway in Republic of Bulgaria are discussed in the paper. They are built at 1985 and are in exploitation over 30 years up to present times. The first of the bridge superstructures is with closed section trapezoidal longitudinal ribs of the OSD and steel plated main girders with 72,45 m span. The second bridge superstructure is with open type section longitudinal ribs of the OSD and steel box main girder with 162m span. Visual inspection and some measurements are performed for evaluation of the overall condition of these bridges. It must be mention that the traffic has considerably increased. Some checks for fatigue for the second bridge are performed in accordance with Eurocode. The condition in respect to fatigue behaviour in accordance with the used structural details in the OSD and the prescriptions of the present design standards is analysed and discussed.

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