Space truss structure surface slab assembly

Abstract

An apex rhombus is delimited over the center point of a square, which is delimited by plotting four nadir rhombuses on the same plane, and each of the nadir rhombuses and the apex rhombus are jointed to form a group of pyramidal surfaces equipped with four planar slopes having substantially the same height in a pyramidal form. Two pyramidal surface slabs are assembled, each composed of pyramidal surfaces around one pyramidal surface, each sharing one nadir rhombus, adjacent each other, and arranged in a grid pattern at an equal pitch in plural directions. The pyramidal surfaces arranged in a grid pattern are each displaced by one-half pitch in a specific direction, such that the apex rhombus of one of the pyramidal surface comes in contact with the nadir rhombus of the other pyramidal surface, whereby the two pyramidal surfaces are placed one on the other.

1 . A space truss structure surface slab assembly comprising two opposing pyramidal surface slabs joined together, wherein each of said two pyramidal surface slabs comprises:
 an apex rhombus delimited over the center point of a polygon delimited by plotting a plurality of nadir rhombuses on one and the same plane, each of said nadir rhombuses and the apex rhombus being jointed to form a group of pyramidal surfaces equipped with a plurality of planar slopes and having substantially the same height in a triangular pyramid, said pyramidal surfaces being arranged in a grid pattern at an equal pitch in two or three directions,   wherein the apex rhombus of one pyramidal surface slab and the apex rhombus of the other pyramidal surface slab opposed thereto are integrally jointed by bonding or welding whereby a space truss structure assembly is formed.   
   
   
       2 . The space truss structure surface slab assembly according to  claim 1 , wherein at least one pyramidal surface slab is made of sheet metal. 
   
   
       3 . The space truss structure surface slab assembly according to  claim 2 , wherein the at least one pyramidal surface slab is produced by pressing a steel slab. 
   
   
       4 . The space truss structure surface slab assembly according to  claim 1 , wherein at least one pyramidal surface slab is made of a thin wooden plate or plywood. 
   
   
       5 . The space truss structure surface slab assembly according to  claim 1 , wherein each of said nadir rhombuses and said apex rhombuses is formed like a spearhead providing a sharp-edged angle. 
   
   
       6 . The space truss structure surface slab assembly according to  claim 1 , wherein a planar surface plate is laminated outside each of the two pyramidal surface slabs so that the space truss structure assembly is sandwiched between them. 
   
   
       7 . The space truss structure surface slab assembly according to  claim 6 , wherein a thin building material including calcium silicate board is used as the planar surface plate. 
   
   
       8 . A space truss structure surface slab assembly comprising two opposing pyramidal surface slabs joined together, wherein each of said two pyramidal surface slabs comprises:
 an apex rhombus delimited over the center point of a triangle or a square which is delimited by plotting three, four or six nadir rhombuses on one and the same plane, each of said nadir rhombuses and said apex rhombus being jointed to form a group of pyramidal surfaces equipped with three, four or six planar slopes and having substantially the same height in a pyramidal form, said pyramidal surfaces being arranged in a grid pattern at an equal pitch in two or three directions,   wherein the apex rhombus of one pyramidal surface slab and the apex rhombus of the other pyramidal surface slab opposed thereto are integrally jointed by bonding or welding whereby a space truss structure assembly is formed.   
   
   
       9 . The space truss structure surface slab assembly according to  claim 8 , wherein at least one pyramidal surface slab is made of sheet metal. 
   
   
       10 . The space truss structure surface slab assembly according to  claim 9 , wherein the at least one pyramidal surface slab is produced by pressing a steel slab. 
   
   
       11 . The space truss structure surface slab assembly according to  claim 8 , wherein at least one pyramidal surface slab is made of a thin wooden plate or plywood. 
   
   
       12 . The space truss structure surface slab assembly according to  claim 8 , wherein each of said nadir rhombuses and said apex rhombuses is formed like a spearhead providing a sharp-edged angle. 
   
   
       13 . The space truss structure surface slab assembly according to  claim 8 , wherein a planar surface plate is laminated outside each of the two pyramidal surface slabs so that the space truss structure assembly is sandwiched between them. 
   
   
       14 . The space truss structure surface slab assembly according to  claim 13 , wherein a thin building material including calcium silicate board is used as the planar surface plate. 
   
   
       15 . A space truss structure surface slab assembly comprising two opposing pyramidal surface slabs joined together, wherein each of said two pyramidal surface slabs comprises:
 an apex rhombus delimited over the center point of a polygon delimited by plotting a plurality of nadir rhombuses on one and the same plane, each of said nadir rhombuses and the apex rhombus being jointed to form a group of pyramidal surfaces equipped with a plurality of planar slopes and having substantially the same height in a triangular pyramid, said pyramidal surfaces being arranged in a grid pattern at an equal pitch in two or three directions,   wherein the apex rhombus of one pyramidal surface slab and the apex rhombus of the other pyramidal surface slab opposed thereto are integrally jointed by bonding or welding whereby a space truss structure assembly is formed.   
   
   
       16 . The space truss structure surface slab assembly according to  claim 15 , wherein at least one pyramidal surface slab is made of sheet metal. 
   
   
       17 . The space truss structure surface slab assembly according to  claim 16 , wherein the at least one pyramidal surface slab is produced by pressing a steel slab. 
   
   
       18 . The space truss structure surface slab assembly according to  claim 17 , wherein at least one pyramidal surface slab is made of a thin wooden plate or plywood. 
   
   
       19 . The space truss structure surface slab assembly according to  claim 17 , wherein each of said nadir rhombuses and said apex rhombuses is formed like a spearhead providing a sharp-edged angle. 
   
   
       20 . The space truss structure surface slab assembly according to  claim 17 , wherein a planar surface plate is laminated outside each of the two pyramidal surface slabs so that the space truss structure assembly is sandwiched between them. 
   
   
       21 . The space truss structure surface slab assembly according to  claim 20 , wherein a thin building material including calcium silicate board is used as the planar surface plate.