Historical domes versus wood preservation methods
Barbara Misztal
barbara.misztal@pwr.edu.plFaculty of Architecture; Wroclaw University of Science and Technology; (Poland)
Abstract
The paper collates various solutions of the structural systems of historical domes made from solid wood by arranging them into a typological series including domes of a span from several up to 67.0 metres of the horizontal projection’s diameter. Many of them were destroyed in fires or out of human ignorance. Preservation methods, in which modern materials and technologies appear, determine the wood durability in a construction. Through using the analogy of wood structure to fibrous composites, the reduction in the carrying capacity of compressed wooden bars due to a damage of parenchymatous cells (as a visco-elastic matrix) in consequence of having applied improper preservation methods and preparations was discussed. The selection criterion of thermo-insulating materials embedded in a close vicinity of wood was formulated. The materials of a constant coefficient within the range of natural variations of the moisture content of ceilings and roofs were recommended. The materials of full, not absorbable fibres, such as rock wool and glass wool, do not meet this criterion.
Keywords:
domes from solid wood, fibrous composites, thermo-insulating materialsReferences
[2] Kozakiewicz P., Matejak M., Klimat a drewno zabytkowe, Wydawnictwo SGGW, Warszawa 2002.
[3] Godet Jean-Denis, Atlas drewna, MULTICO Oficyna Wydawnicza. Warszawa 2008
[4] Bednarek Z., Kaliszek-Wietecka A., Wytrzymałość drewna impregnowanego ogniochronnym środkiem solnymmetodą próżniowo- ciśnieniową. 50 – ta Jubileuszowa Konferencja Naukowa Komitetu Inżynierii Lądowej i Wodnej PAN i Komitetu Nauki PZTIB „Krynica 2004” 12-17 września 2004 roku.
[5]Kowal Z. Nośność krytyczna słupów drewnianych jako kompozytów włóknistych. Sympozjum- Drewno
i Materiały Drewnopochodne w Konstrukcjach Budowlanych, Śzczecin-Międzyzdroje,05-06 września.
[6] Ugolik A., Ekofiber,
[7] Tarkowski S., Krajewski J. A., Materiały izolacyjne zawierające sztuczne włókna mineralne - zagrożenia, [w:] Bezpieczeństwo Pracy. Nauka i praktyka, 3/2002, Instytut Medycyny Pracy im. prof. Jerzego Nofera, s. 16-20.
Authors
Barbara Misztalbarbara.misztal@pwr.edu.pl
Faculty of Architecture; Wroclaw University of Science and Technology; Poland
Statistics
Abstract views: 247PDF downloads: 289
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.
