Development of Fire-proof Wooden Architectural Members and Their Prospect

摘要

In order to utilize planted forests that cover 27% of the county, it would be effective to replace non-wood buildings with wood ones, because there is little expectation for an increase in new detached wood houses in the near future. As many steel and reinforced concrete buildings are usually built in fire-prevention areas, it is required to develop fire-proof or quasi-fire-proof structural glulam meeting the Building Standards Law for wood buildings in fire-prevention areas. Recently, there has been an increase in research on development of fire-resistive structural glulam thanks to the high target of self-sufficiency ratio for wood, and the Promotion Law to utilize wood for public buildings. Therefore basic methods to provide fire-resistive performance, classification and characteristics of the methods, examples of completed buildings, and future subjects and prospects are reviewed.