ABSTRACT
As a natural organic material, wood has been widely used in traditional residential buildings since ancient times because of its advantages of easy resource regeneration, environmental protection and good thermal insulation. However, in the wood structure of residential buildings at high altitude in Ganzi Tibetan Autonomous Prefecture, Sichuan Province, due to the influence of climate, humanities, biology, physics, chemistry and other factors, the wood properties have changed, resulting in the cracking, decay, insect-eating, mildew and other problems that threaten the structural safety of residential buildings, thus affecting the durability of the wood structure. This study takes Muya residential building in Shade Town, Kangding City as the research object, and through on-the-spot investigation of the present situation of local residential buildings, finds out the problems existing in the wood structure during its long-term use. At last, the influence of local climate, hydrology, geology and other characteristics of Shade Town on wood structure in residential buildings is summarized, and preventive protection strategies such as moisture-proof, moth-proof and fire-proof in existing wood structure of residential buildings are preliminarily put forward, which provides scientific basis for preventive protection of traditional wood structure buildings and even new wood structure buildings.