We studied and developed 9 meters to 12 meters span wooden king-post trusses and others using circulated timber and pre-cut system for framework of wooden house, which can be adapted in low rise buildings such as school buildings and so on. Upon developing, we had conducted full-scale static loading test and grasped the characteristics of those. In 2015, a revised edition of JIS A 3301-2015 (Design standards for wooden construction of school buildings), adopting these trusses, was released.
