DEVELOPMENT OF LONG SPANNED BOX BEAM BASED ON POST - AND - BEAM CONSTRUCTION

Abstract

Long spanned box beams constructed by standard timber of Japanese conventional housing and sheathed with structural panels are useful to construct medium and large scale wooden structures, but creep deformation tend to increase compared to single lumber beams. Therefore it is important to reduce initial deflections. In this study, full-size bending tests of several types of box beams are conducted to evaluate their utility by analyzing initial deflections and fracture behavior.