Historic timber roofs modelling: prosthesis and resin repairs

• Autorzy: Descamps T. , Avez C. , Carpentier O. , Antczak E. , Jeong G.Y.

Identyfikatory

DOI

10.17425/WK47ROOFS

Warianty tytułu

PL

Modele zabytkowych dachów drewnianych: protezy i naprawy z wykorzystaniem żywic

• Języki publikacji: PL

Abstrakty

PL

Obowiązujące standardy i normy koncentrują się na współczesnych połączeniach kołkowych i zazwyczaj nie zawierają zbyt wielu wytycznych dla projektantów wykorzystujących tradycyjne połączenia. Skuteczna naprawa elementów drewnianych wymaga złożonych i interdyscyplinarnych działań, uważnych badań i realizacji. W obszarze odnowy historycznych budynków inżynierowie pracują na dawnych konstrukcjach, zbudowanych ze źle zachowanych elementów drewnianych, połączonych różnymi tzw. „tradycyjnymi złączami’. Połączenia odgrywają kluczową rolę w pracy konstrukcji starych drewnianych obiektów. Konieczne jest przeprowadzenie dalszych badań w tym obszarze, aby wypracować rzetelne specyfikacje dla projektantów, protokół procedur naprawczych oraz rekomendacje dla przyszłych interwencji renowacyjnych lub wzmacniających. Zabytkowe dachy drewniane odgrywają istotną rolę z punktu widzenia historycznego i estetycznego oraz wymagają dogłębnego zrozumienia oryginalnie zastosowanych zasad i technik, w celu wybrania właściwej strategii naprawczej. Podczas renowacji belki za pomocą protezy konieczne jest zaprojektowanie ciągłego połączenia pomiędzy protezą a zdrową częścią starej belki drewnianej. Połączenia takie wykonuje się najczęściej z wykorzystaniem wklejanych prętów. Artykuł opisuje badania przeprowadzone w celu opracowania Modelu Elementów Skończonych, który będzie w stanie prognozować pracę i zachowanie, np. wytrzymałość oraz sztywność wklejanych prętów wykorzystywanych w złączach ciągłych.

EN

Current standards mainly focus on modern dowel type joints and usually provide little guidance to designers regarding traditional joints. An effective timber repair needs a complex interdisciplinary work with careful investigation and execution. In the field of restoration of patrimonial buildings, engineers have to work with old structures made of badly preserved timber elements connected by particular connections known as “traditional connections”. The joints play a major role in the structural behaviour of the old timber frames. Further studies in the area are deemed necessary to establish a reliable design specification, the protocol of the repair procedure, and recommendations for the future rehabilitation or strengthening interventions. Patrimonial timber roofs are of considerable historic and aesthetic significance, and demand a thorough understanding of the principles and techniques involved to choose a suitable repair strategy. When restoring a beam with a prosthesis, a continuity joint between the prosthesis and the sound parts of the existing timber beams has to be designed. Those connections are most of the time made with glued-in rods. This paper presents a research carried out to develop a FE model which may predict the behaviour, e.g. the strength and the stiffness, of glued-in rods used for continuity joints.

Słowa kluczowe

PL

naprawa z wykorzystaniem żywicy; połączenie półsztywne; ocena

EN

resin; repair; semi-rigid connection; assessment

• Wydawca: Zarząd Główny Stowarzyszenia Konserwatorów Zabytków
• Czasopismo: Wiadomości Konserwatorskie
• Rocznik: 2016
• Tom: Nr 47
• Strony: 52--60
• Opis fizyczny: Bibliogr. 45 poz., rys., tab.

Twórcy

autor

Descamps T.

• University of Mons, Department of Civil Engineering

autor

Avez C.

• University of Mons, Department of Civil Engineering

autor

Carpentier O.

• University of Artois, Laboratoire de Génie Civil et Géo-environement, Béthune, France

autor

Antczak E.

• University of Artois, Laboratoire de Génie Civil et Géo-environement, Béthune, France

autor

Jeong G.Y.

• Chonnam National University, Dept. of Wood Science and Engineering, Gwangju, South Korea

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