H-beam and method for constructing concrete form using h-beam and non-metallic sheathing board

Abstract

Disclosed are an H-beam and a method for constructing a concrete form using the H-beam and non-metallic sheathing board. An H-beam includes a middle support part interposed between two adjacent sheathing boards so that lateral surfaces of edge portions of the two adjacent sheathing boards respectively contact both lateral surfaces of the middle support part and are supported by the middle support part, and edge connection parts bent perpendicular from both side end portions of the middle support part and extending forward and backward in a longitudinal direction in order to cover front and rear surfaces of the edge portions of the sheathing boards and support the same. Accordingly, connection of the sheathing boards can be achieved rapidly and easily, construction processes are simplified, and work time is remarkably reduced. As a result, work efficiency is improved.

What is claimed is: 
     
         1 . An H-beam configured to connect edge portions of a plurality of sheathing boards spaced a certain distance apart from each other in a width direction to form a space therebetween to receive concrete poured therein and consecutively arranged in a longitudinal direction while standing upright so as to extend the sheathing boards straight, the H-beam comprising:
 a middle support part interposed between two adjacent sheathing boards so that lateral surfaces of the edge portions of the two adjacent sheathing boards respectively contact both lateral surfaces of the middle support part and are supported by the middle support part; and   edge connection parts bent perpendicular from both side end portions of the middle support part and extending forward and backward in the longitudinal direction in order to cover front and rear surfaces of the edge portions of the sheathing boards and support the same,   wherein, with respect to a flat tie arranged perpendicular to the edge portions of the sheathing boards across a pair of sheathing boards spaced apart from each other in the width direction, the middle support part is formed with a tie receiving groove to receive the flat tie inserted therein,   the flat tie arranged across the sheathing boards in the width direction is provided in plural, and   with respect to a tie slit formed at a concave recess of the sheathing board, which one of the flat ties penetrates, each of the edge connection parts has a cut portion cut away from a distal end portion thereof corresponding to the tie slit, so that the flat tie penetrates the cut portion.   
     
     
         2 . The H-beam according to  claim 1 , wherein, with respect to a concave recess formed at the edge portion of the sheathing board covered by the edge connection parts so as to allow the edge connection parts to be positioned on the same plane as front and rear surfaces of the sheathing board,
 the edge connection parts have an interval in the width direction, the interval being equal to a thickness of the edge portion of the sheathing board.   
     
     
         3 . The H-beam according to  claim 1 , wherein, with respect to slanted surfaces formed at front and rear corners of the edge portion of the sheathing board contacting the middle support part,
 the H-beam has slanted surfaces corresponding to the slanted surfaces of the sheathing board, the slanted surfaces of the H-beam being formed at corners at which the middle support part and the edge connection parts adjoin.   
     
     
         4 . The H-beam according to  claim 1 , wherein, with respect to a through-hole formed at the edge portion of the sheathing board and an additional securing pin fitted through the through-hole,
 the edge connection parts opposing each other in the width direction are formed with pin holes aligned in the width direction so that, in the state in which the pin holes are aligned with the through-hole of the edge portion of the sheathing board interposed between the edge connection parts, the securing pin is fitted through the pin holes and the through-hole in order to secure the sheathing board to the edge connection parts.   
     
     
         5 . The H-beam according to  claim 1 , wherein the cut portion has an opened top so as not to interrupt upward movement of the flat tie when cutting end portions of the flat tie penetrating the tie slit of the sheathing board by shaking the end portions of the flat tie up and down after pouring concrete, and a support step formed at a bottom thereof to support a bottom surface of the flat tie. 
     
     
         6 . The H-beam according to  claim 1 , wherein the edge connection parts have slanted guide surfaces formed at inner corners of distal end portions thereof so as to guide the edge portion of the sheathing board to be smoothly fitted into a space between the edge connection parts. 
     
     
         7 . An H-beam configured to connect edge portions of sheathing boards for slabs disposed horizontally on a top of sheathing boards for upright walls so as to extend the sheathing boards horizontally and to connect the sheathing boards to layers of wood disposed beneath the sheathing boards and held up by supports, the H-beam comprising:
 a middle support part interposed between two adjacent sheathing boards so that lateral surfaces of the edge portions of the two adjacent sheathing boards respectively contact both lateral surfaces of the middle support part and are supported by the middle support part;   edge connection parts bent perpendicular from top and bottom portions of the middle support part and extending forward and backward in a longitudinal direction in order to cover top and bottom surfaces of the edge portions of the sheathing boards and support the same; and   a nail hole formed vertically through the middle support part, through which an additional nail is driven into the layers of wood disposed beneath the H-beam from a hitting space,   wherein, with respect to a through-hole formed at the edge portion of the sheathing board and an additional securing pin fitted through the through-hole,   the edge connection parts opposing each other in the width direction are formed with pin holes aligned in the width direction so that, in the state in which the pin holes are aligned with the through-hole of the edge portion of the sheathing board interposed between the edge connection parts, the securing pin is fitted through the pin holes and the through-hole in order to secure the sheathing board to the edge connection parts.   
     
     
         8 . A method for constructing a concrete form using an H-beam comprising:
 preparing H-beams for connecting sheathing boards for upright walls, each of the H-beams including a middle support part interposed between two adjacent sheathing boards so that lateral surfaces of edge portions of the two adjacent sheathing boards respectively contact both lateral surfaces of the middle support part and are supported by the middle support part, and edge connection parts bent perpendicular from both side end portions of the middle support part and extending forward and backward in a longitudinal direction in order to cover front and rear surfaces of the edge portions of the sheathing boards and support the same, wherein, with respect to a flat tie arranged perpendicular to the edge portions of the sheathing boards across a pair of sheathing boards spaced apart from each other in a width direction, the middle support part is formed with a tie receiving groove to receive the flat tie inserted therein, the flat tie arranged across the sheathing boards in the width direction is provided in plural, and, with respect to a tie slit formed at a concave recess of the sheathing board, which one of the flat ties penetrates, each of the edge connection parts has a cut portion cut away from a distal end portion thereof corresponding to the tie slit, so that the flat tie penetrates the cut portion;   arranging a plurality of sheathing boards to be spaced a certain distance apart from each other in the width direction and extend in the longitudinal direction while standing upright;   connecting the sheathing boards using the H-beams such that edge portions of each two adjacent sheathing boards extending in the longitudinal direction are inserted into a space between edge connection parts of the H-beams; and   fitting flat ties through the sheathing boards arranged in the width direction so as to maintain a predetermined interval in the width direction between the sheathing boards.   
     
     
         9 . The method according to  claim 8 , further comprising:
 preparing H-beams for connecting sheathing boards for slabs;   connecting edge portions of each two adjacent sheathing boards for slabs disposed horizontally on a top of the sheathing boards for upright walls using the H-beams for slabs so as to extend the sheathing boards horizontally; and   securing layers of wood disposed beneath the sheathing boards and held up by supports and the H-beams for slabs to each other by nails.