Post and beam structure at a multi-height opening portion

Abstract

An opening portion ( 2 ) having a height of two stories or more is provided in an exterior wall that faces a multi-height space. At least one wind-resistant post ( 3 ) is composed of a glued laminated timber, and has a cross-section in which a long axis dimension thereof is at least twice as long as a short axis dimension thereof. The wind-resistant post ( 3 ) is disposed upright and extends continuously through upper and lower floors, with a long axis direction of the cross-section being orthogonal to an opening plane. This wind-resistant post ( 3 ) exerts a high resistance against wind pressure acting on the opening portion, thereby achieving a post and beam structure that adds excellent spaciousness and visual appeal to the opening portion.

1 . A post and beam structure at a multi-height opening portion, the opening portion having a height of two stories or more and being provided in an exterior wall that faces a multi-height space,
 the post and beam structure comprising at least one wind-resistant post that is composed of a glued laminated timber and that has a cross-section in which a long axis dimension thereof is at least twice as long as a short axis dimension thereof,   wherein the wind-resistant post is disposed upright and extends continuously through upper and lower floors, with a long axis direction of the cross-section being orthogonal to an opening plane, and the wind-resistant post serves to resist wind pressure acting on the opening plane.   
     
     
         2 . The post and beam structure at the multi-height opening portion according to  claim 1 ,
 wherein the at least one wind-resistant post comprises a plurality of wind-resistant posts that are disposed upright in the opening plane including both sides of the opening portion,   wherein the wind-resistant posts are linked with each other at suitable middle-height positions thereof, by at least one post connecting member that extends horizontally.   
     
     
         3 . The post and beam structure at the multi-height opening portion according to  claim 1 ,
 wherein a post base of the wind-resistant post is directly fixed on a foundation via a suitable post base fitting.   
     
     
         4 . The post and beam structure at the multi-height opening portion according to  claim 1 ,
 wherein a post head of the wind-resistant post is directly fixed on a pole plate, or on a similar beam member at an uppermost part of a post-and-beam building frame via a suitable post-to-beam fitting.