{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T16:33:38Z","timestamp":1758904418220},"reference-count":15,"publisher":"Vilnius Gediminas Technical University","issue":"4","content-domain":{"domain":["journals.vgtu.lt"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2017,12,21]]},"abstract":"<jats:p>In repairing and retrofitting processes of ancient riveted steel bridges is crucial to assess the structural state of old metals to guaranty structural safety. Metals under long-time operations (mild, rimmed low carbon steels &amp;lt;0.1% C, puddle irons) and cyclic loading present a tendency for degradation processes. The case-studies of this work are five metallic bridges existing in Portugal (Luiz I, Eiffel, Fao, Pinhao and Trezoi). This work presents the study of some characteristics of materials extracted from the five case-studies, such as: monotonic tensile strength, chemical composition, microstructures, hardness, notch toughness and fatigue crack propagation. In terms of monotonic tensile tests, the materials from Luiz I, Eiffel and Fao bridges are similar to puddle steel and the materials from Pinhao and Trezoi bridges are similar to mild steel. In terms of toughness only the material from the Pinhao bridge exhibits acceptable toughness properties, considering current design requirements. The materials from the other bridges exhibit relatively low toughness properties. The fatigue crack propagation data from the old Portuguese riveted steel bridges were correlated using the Paris\u2019s law and the possibility for a design crack growth rate was discussed.<\/jats:p>","DOI":"10.3846\/2029882x.2017.1414637","type":"journal-article","created":{"date-parts":[[2017,12,21]],"date-time":"2017-12-21T21:01:32Z","timestamp":1513890092000},"page":"214-225","update-policy":"http:\/\/dx.doi.org\/10.3846\/est_policy","source":"Crossref","is-referenced-by-count":3,"title":["MECHANICAL CHARACTERIZATION OF ANCIENT PORTUGUESE RIVETED BRIDGES STEELS"],"prefix":"10.3846","volume":"9","author":[{"given":"Patr\u00edcia","family":"RAPOSO","sequence":"first","affiliation":[{"name":"University of Porto"}]},{"given":"Jos\u00e9","family":"CORREIA","sequence":"additional","affiliation":[{"name":"University of Porto"}]},{"given":"Grzegorz","family":"LESIUK","sequence":"additional","affiliation":[{"name":"Wroclaw University of Science and Technology"}]},{"given":"Isabel","family":"VALENTE","sequence":"additional","affiliation":[{"name":"University of Minho"}]},{"given":"Ab\u00edlio","family":"DE JESUS","sequence":"additional","affiliation":[{"name":"University of Porto"}]},{"given":"Rui","family":"CAL\u00c7ADA","sequence":"additional","affiliation":[{"name":"University of Porto"}]}],"member":"2209","reference":[{"key":"CIT0003","volume-title":"Bridge maintenance, safety management, health monitoring and informatics (IABMAS \u201808)","author":"Correia J. 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