Revitalization of the historic road steel viaduct / Mariusz Maślak, Marek Pańtak, Mariusz Hebda, Bogusław Jarek // W: Meždunarodna Naučna Konferenciâ Po Opazvane Na Nedvižimoto Kulturno Nasledstvo ... więcej

Revitalization of the historic road steel viaduct / Mariusz Maślak, Marek Pańtak, Mariusz Hebda, Bogusław Jarek // W: Meždunarodna Naučna Konferenciâ Po Opazvane Na Nedvižimoto Kulturno Nasledstvo BANI'2022, 21-23 noemvri 2022 : dokladi = International Scientific Conference "Preservation Of Cultural Heritage" BASA' 2022, 21-23 november 2022 : proceedings [Dokument elektroniczny] / red. Nikolaj Tuleškov, Dončo Partov ; Bʺlgarska Akademiâ Na Naukite i Izkustvata. Naučen Institut po Arhitektura, Stroitelstvo i Gradoustrojstvo. – Sofiâ : Bʺlgarska akademiâ na naukite i izkustvata, 2023. – (Meždunarodna naučna konferenciâ po opazvane na nedvižimoto kulturno nasledstvo BANI' = International Scientific Conference Preservation of Cultural Heritage BASA', ISSN 2815-3650). – S. 169-183 : fot., mapy, rys. – Tryb dostępu: http://www.mosty.pk.edu.pl/BANI_2022.pdf. – Bibliogr. 8 poz., Abstr.

The results of the technical condition inventory related to the steel road viaduct located along the Polish national road DK88 in Silesia and used under load for several dozen years are presented and discussed ... więcej

The results of the technical condition inventory related to the steel road viaduct located along the Polish national road DK88 in Silesia and used under load for several dozen years are presented and discussed in detail. The high level of wear of the basic structural elements was indicated, qualifying the tested object to an emergency condition. The numerically verified actual load capacity of the existing structure revealed in many elements significant overloads conditioned by a high degree of corrosion damage identified in situ. They resulted in above-standard deflections of the girders and also displacements of the supports. The values of such deformations and such observed imperfections clearly exceeded those that are acceptable in this type of objects. The proposed revitalization plan, which has so far been partially implemented in practice, is discussed in detail. In particular, the focus is on the design of the strengthening of the outermost beams, the refurbishment and rectification of the bearings as well as the repair of abutments and expansion joints. The proposed method of reconstruction, relief and strengthening of the existing deck is presented as well. In addition, the method of renovation of an incomplete drainage system carried out on the site is shown in detail. Separate attention is paid to the anti-corrosion protection implemented in the renovated structure. It concerned both the elements in use so far, only subject to the renovation, and also the quite new elements, inserted into the superstructure to strengthen it.