从牌坊倒塌事故看木结构建筑的防腐设计

Reflections on Anti-corrosion Design of Timberwork Building from the Memorial Arch Collapse Accident

深究木结构建筑因腐朽而倒塌事故的深层次原因,不难发现从原料、加工、设计、管理四个方面进行木结构防腐思考是有益的.结合对木结构建筑木腐菌致腐和虫蚁蛀蚀两方面基本原理的探讨,以及国内外大量古代木结构建筑遗存的事实,可知通过合理的设计能有效防止木结构建筑腐朽倒塌事故的发生.文章从选材与施工组织设计、排水设计、除湿设计和防白蚁设计四方面阐述了木结构防腐设计的基本思路.

To investigate the underlying reasons for the accident of the timberwork building＇s collapse for decay, we can easily find that it is helpful if we consider it from four aspects, namely, raw materials, processing, design and management. With the combination of the discussion of the basic principles of the rot of timberwork building for wood-decay fungi and the damage by insects, and the fact that a large number of ancient timberwork buildings still remain around the world today, it can be seen that through reasonable design, we can effectively prevent the accident of timberwork building collapse for decay from happening again. This paper proposes a basic train of thought in the following four aspects： material selection and construction organization design, drainage design, dehumidification design and termite prevention design.