Historically, timber, as a main construction material has been applied in the field of construction, timber structure is building in the middle part of a very large proportion, but the wood will happen after a long time after the use of decayed, cracking, crispy and other diseases, result in loss of structure strength and buckling problems of influence continue to use, has quite a number of ancient architecture of China is a wooden structure, at the same time many wooden structure has important historical significance and research value, at the...