The Influence of Biological Factors on the Health of Timber Structures on 11^th to 14^th Century AD in Yazd

Abstract:

One of the main reasons for the decline and exhaustion of wood materials in old buildings is biological factors. In Yazd According to the position of buildings in hot and dry desert climate and the use of wood as an integral part of the building structure, This factors of damage to obvious and hidden that could threaten the stability of buildings. With respect to this, the several period laboratory and field research to identify the species and damage caused by biological agents work on timber structures Which mainly on 11 to 14 century AD buildings of Yazd damage has Was performed. In order to identify malicious insects, so far three type of Borer beetles the scientific name of the family Buprestidae Pseudocastalia aegyptiaca and Xylopertha reflexicauda and family Bostrichus capucinus Bostrychidae and three termite species with scientific names Anacanthotermes vagans (Hagen) family of Hodotermitidae, Amitermes sp. and Microcerotermes sp. The family Trmytyda has been identified in Yazd. The damage that these insects create many factors such as type of wood density, moisture content of wood depends on environmental conditions and location of the attack. According to climate of Yazd and construction technology, most of the structural damage, such as domes, arches and brick walls to show. These damages brought down the long-term structural strength and the instability in natural factors such as earthquakes, the structural imbalances and collapse of the buildings.Therefore the pathology of Integral component on timber structures brick in assessing the health and stability of structure in a desert climate of Yazd is very important and necessary. In this paper, by introducing the use of timber in 11th century to 14 century adobe structures in Yazd to review and evaluate the damage caused by the destruction timber structures Monuments By biological agents are paid.

• Periodical: Advanced Materials Research (Volume 778)
• Pages: 19-25
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.778.19
• Online since: September 2013
• Authors: Sasha Riahi Moghaddam, Sepideh Poormohamadi, Marziyeh Saffar, Faezeh Esfahanipour
• Keywords: Health Building, Termite, Timber Structure, Wood Borer Beetle, Yazd

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