Skip floor structure

Abstract

This invention is to transmit the horizontal force between the general floor portion and skip floor efficiently, to avoid the damage to the boundary part between the skip floor structure and the general floor portion in the event of an earthquake or the like, and can heighten the degree of freedom in design by reducing restrictions on the building form.As a solution, skip floor structure of this invention has the bellyband beams (5) constructed at the same height level as the floor beams (1) above or below the outer peripheral floor beams (3) of skip floor (4).In addition, transmission beams (10) for transmitting horizontal force from the outer peripheral floor beams (3) to the bellyband beams (5) are interposed at key points between the outer peripheral floor beams (3) and the bellyband beams (5).

1 . A skip floor structure comprising:
 a bellyband beam constructed above or below an outer peripheral floor beam of a skip floor at the same height level as a floor beam of a general floor portion; and   transmission beams for transmitting horizontal force from the outer peripheral floor beam to the bellyband beam interposed at key points between the bellyband beam and the outer peripheral floor beam.   
     
     
         2 . The skip floor structure according to  claim 1 , wherein at least one of the transmission beams is disposed on each side of the skip floor. 
     
     
         3 . The skip floor structure according to  claim 2 , wherein the transmission beams are disposed directly below a bearing wall provided on the bellyband beam. 
     
     
         4 . The skip floor structure according to  claim 3 , wherein the transmission beams are joined to the outer peripheral floor beam and the bellyband beam using a tenon. 
     
     
         5 . The skip floor structure according to  claim 4 , wherein
 the bellyband beam is constructed above the outer peripheral beam,   a pair of opening columns are erected on the outer peripheral beam at a lacking portion where a part of the bellyband beam is lacking, and   the bellyband beam divided by a lack is coupled to the opening columns, so that an opening such as a window or an entrance door is provided between the opening columns.   
     
     
         6 . The skip floor structure according to  claim 5 , wherein at least one of the transmission beams is disposed on each of both sides of the lacking portion of the bellyband beam.