Aluminium Bridges under Fire Conditions: Structural Behaviour

Due to a number of advantages, aluminium is used in the attachment units mullion and transom systems for decorative panels translucent fillings, as well bridge structures. Despite its has low melting point does not have fire resistance performances required by regulatory documents under conditions. Therefore, this article aimed at studying behaviour structures high temperatures. To achieve objective, we analysed most commonly construction—the systems, with different protections against fire, columns orthotropic decks construction. In order assess selected conditions, developed methods temperature distributions detail. Using methods, tests been carried out. Based on received experimental data, conditions measures increase Such include using hollow profiles ensure air exchange cold sections structure, applying dedicated cooling agents cool structure removing heat atmosphere thermal barriers so protect We found that enhance 1.5 times. The use air-permeable increases 3 times from rating profile higher than without profiles. obtained results can be effective basis design principles increasing given are applicable other types structures, also protection. Increasing enables expansion scope their applications.