JP2018084088A - Step floor support leg and step floor structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a step floor support leg and step floor structure using the step floor support leg having excellent productivity and workability and having excellent extensibility, the step floor support leg and step floor structure using the step floor support leg being used for laying a stepwise step floor to be provided at a classroom, hall, or the like.SOLUTION: A step floor support leg 2 for supporting respective substrate materials of an upper side tread face 14 and lower side tread face 14 of any riser part 13 of a step floor has a structure including: a post member 8 disposed and erected on a basic surface 1; a first sleeper support member 10, disposed on the upper part of the post member 8, for mounting and supporting a sleeper material 4 related to substrate formation of the upper side tread face 14; and a second sleeper support member 12, attached to the post member 8, for mounting and supporting a sleeper material 4 related to substrate formation of the lower side tread face 14.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a stepped floor support leg for laying a stepped stepped floor provided in a classroom, a hall, and the like, and a stepped floor structure using the same.

  Conventionally, for example, a floor assembling method described in Patent Document 1 is known for a stepped step floor. As shown in FIG. 11, first, a plurality of floor support legs 100 with different heights are arranged in a row on a floor slab, and a large pulling material 102 is inclined between the support legs 100. The joist member 104 is fixed in the orthogonal direction on the large pulling member 102, and the steel plate 106 is laid on the upper part to form an inclined surface. Then, the kick plate 108 and the side end plate 110 are attached to the inclined surface at a predetermined interval, and concrete is placed between the kick plates 108 to construct a staircase floor.

  In addition, the stepped floor structure described in Patent Document 2 relates to the stepped floor when a stadium or the like is provided with a stepped floor board and a raised floor board, and the height can be adjusted by attaching an adjustment bolt to the uppermost stepped board. A stepped floor unit is constructed, and each stepped floor unit is constructed in a parallel staircase shape along the receiving beam at the stepped floor construction position, and the stepped floor units are joined together to construct a stepped floor structure.

  Patent Document 3 describes a steel floor bundle, which has an installation plate, a receiving plate that receives a large pull, and a pipe member that is erected and fixed to the installation plate and the receiving plate. A female screw is formed on the inner peripheral surface, a male screw that is screwed with a female screw of both pipe members is provided at both ends, and a screw rod provided with an operation nut for rotational operation is provided in the middle.

JP 2000-309999 A JP 2000-230303 A JP 2003-138683 A

Now, in the floor assembly method described in Patent Document 1, each floor support leg is configured to support the large pulling material in an inclined manner when performing floor assembly in a staircase shape. Careful attention must be paid to balance, and since the stepped floor is made of concrete, there is a problem that transportation and construction become large.
Further, since the step floor structure of Patent Document 2 is a structure using a multi-stage step floor substrate, a receiving beam, or the like, there is a problem that the material becomes large and lacks workability, expandability, and the like.

  The steel floor bundle according to Patent Document 3 is a floor bundle that supports a large draw placed on a receiving plate that is arranged so that the height can be adjusted, and a height adjustment mechanism is provided at an intermediate portion of the floor bundle. . Such a floor bundle is a form that supports the large pull at one place of the receiving plate, and when placing the large pull at different heights, two types of floor bundles are prepared. There is a problem that the number of parts increases, and the number of floor bundles increases, which takes time.

  The present invention has been made to solve the above problems, and an object thereof is to provide a corrugated floor support leg that is excellent in productivity, workability, and extensibility, and a corrugated floor structure using the same. .

In order to solve the above technical problems, the corrugated floor support leg according to the present invention includes, as shown in FIGS. It is a corrugated floor support leg 2 that supports each base material of the tread surface 14, the column member 8 disposed on the foundation surface 1, and the upper tread surface disposed on the column member 8. The first pulling support member 10 for placing and supporting the large pulling material 4 related to the formation of the base 14 and the large pulling material 4 attached to the support member 8 and related to the base formation of the lower tread surface 14 And a second large pulling support member 12 mounted and supported.
Here, as the attachment position of the second pulling support member 12 to the support member 8, an appropriate position of the intermediate portion of the support member 8 (a portion between the vicinity of the upper part and the vicinity of the lower part) is selected. In addition, the second large pulling support member 12 is provided with, for example, a horizontal flat portion, and the large pulling material 4 is placed and fixed thereon.

In the corrugated floor support leg according to the present invention, the second large pull support member 12 includes a position adjuster 44 attached to the column member 8 and a receiver 46 formed integrally with the position adjuster 44. And the large pulling material 4 is placed on the receiving member 46.
Here, for example, the receiving tool 46 is formed integrally with the side portion of the position adjusting tool 44 or the like. Further, there are a form in which the two parts are joined and the position adjusting tool 44 and the receiving tool 46 are integrally formed, or one part of one part is used as the position adjusting tool 44 and the other part is used as the receiving tool 46.

According to the stepped floor support leg of the present invention, the position adjustment tool 44 of the second large pulling support member 12 has a rectangular cross-section, a cross-section C-shape, a cross-section L-shape or an inverted L-shape, or a flat plate shape. The structure has an insertion hole through which the column member 8 can be inserted or a notch into which the column member 8 can be inserted.
Here, in the above-mentioned C-shaped section, L-shaped section, or inverted L-shaped section, for example, an insertion hole portion is provided in a lateral portion, the support member 8 is inserted, and a support 46 is attached to the longitudinal portion. Further, in the case of a flat plate, the column member 8 is inserted with one part as the position adjusting tool 44 and the large pulling material 4 is placed as the receiving part 46 with the other part.

Further, the corrugated floor support leg according to the present invention is configured such that the position adjustment tool 44 of the second large pulling support member is formed by bending the upper plate portion 48 downward from the left and right portions of the upper plate portion 48, 50 and the lower plate portion 52 are formed in a rectangular cross section, and the insertion holes 54 and 56 or the column members 8 into which the column members 8 can be inserted can be inserted into the upper plate portion 48 and the lower plate portion 52, respectively. It is the structure which provided the notch parts 55 and 57.
In the corrugated floor support leg according to the present invention, tubular or groove-shaped reinforcing members 69 and 71 are fitted into the insertion hole portion or the notch portion of the position adjusting tool 44, and the reinforcing members 69 and 71 have the above-mentioned inside. In this configuration, the support member 8 is inserted.

According to the corrugated floor support leg of the present invention, the receiver 46 of the second large pull support member 12 has a U-shaped section, a rectangular section, a C-shaped section, an L-shaped section or an inverted L-shaped section, or a flat plate shape. It is the structure which makes | forms this shape.
Here, each of the receiving tools 46 has a vertical portion (or one end) joined to the position adjusting tool 44, and for example, those having a rectangular cross-section and a C-shaped cross-section are large in the upper plate portion or the like. The pulling material 4 is placed, and the cross-sectional L-shaped or inverted L-shaped and flat plate-shaped materials all have a large pulling material placed on the plane portion.
In addition, the receiving device 46 has a form in which it is integrally formed with the position adjusting tool 44, a form in which both are continuously formed, or the like.

  In addition, the corrugated floor support leg according to the present invention is configured such that the receiver 46 of the second large pull support member 12 is formed in a U-shaped cross section including a bottom plate portion 58 and left and right side plate portions 60, 60. In the vicinity of the upper portions of the both side plate portions 60, 60, holes 61, 61 to which the large pulling fixture 37 can be respectively attached are provided, and the extended portions of the center lines of the both hole portions 61, 61 are provided on the support member 8. The configuration is biased to the left or right side from the center line.

In addition, the stepped floor support leg according to the present invention has a structure in which a screw groove is formed in the support member 8 and the second extended support member 12 is attached to the support member 8 so that the height can be adjusted.
The corrugated floor support leg according to the present invention has a configuration in which the support column member 8 is fixedly erected on the upper portion of the support base 9 arranged on the base surface, or is erected so that the height can be adjusted.

  In the corrugated floor structure according to the present invention, any one of the corrugated floor support legs described above is arranged in the front-rear direction of the foundation surface, and the first large pulling support member 10 and the second corrugated floor support leg 2 of the arbitrary corrugated floor support leg 2 are arranged. The distance between the large pulling support member 12 is adjusted to the height at which the stepped floor is raised, and the height of the first large pulling support member 10 of the arbitrary stepped floor supporting leg 2 and the stepped floor support immediately thereafter are adjusted. The height of the second large pulling support member 12 of the leg 2 is adjusted to be the same, and the stepped floor support legs 2 having the same length are arranged in a row in the horizontal direction for each of the stepped floor support legs 2 and arranged in the horizontal direction. The large pulling material 4 is arranged between the first large pulling support members 10 and between the second large pulling support members 12 of the respective corrugated floor support legs 2, and these large pulling materials 4 are respectively connected to the first large pulling support members. 10 and the second pulling support member 12, and the pulling material 4 attached to the first pulling support member 10 of the optional corrugated floor support leg 2. A stepped floor 14 is formed by arranging a stepping material 6 between the upper portion of the large pulling material 4 attached to the second large pulling support member 12 of the stepped floor support leg 2 immediately after the portion. It is.

  According to the corrugated floor support leg according to the present invention, the strut member, the first pulling support member disposed on the upper portion and supporting the pulling material on the upper tread surface, and attached to the strut member, Since the structure having the second pulling support member for placing the large pulling material on the tread is adopted, the efficiency of work related to the construction of the corrugated floor can be improved, and the productivity and workability are excellent. Since the base of the upper and lower steps of the corrugated floor is formed by the corrugated floor support legs, the material is reduced and the economy is excellent.

  According to the corrugated floor support leg according to the present invention, the second pulling support member is configured to include the position adjusting tool attached to the support member and the support member of the pulling material, so that the pulling material is stable to the support member. And there is an effect that it is supported effectively.

According to the corrugated floor support leg according to the present invention, the position adjustment tool of the second large pull support member is formed in a rectangular cross section, and the upper plate portion and the lower plate portion are provided with the insertion hole portions of the column members, respectively. Therefore, there is an effect that it is easy to attach and hold the second large pull support member to the support member.
According to the corrugated floor support leg according to the present invention, since the cylindrical or groove-shaped reinforcing member is fitted into the insertion hole portion or the notch portion of the position adjusting tool and the column member is inserted, the position adjustment is performed. The insertion hole portion of the tool is reinforced, and there is an effect that the position adjustment tool can be firmly fixed to the support member.

  In addition, according to the corrugated floor support leg according to the present invention, the holes that can be attached to the large pulling fixtures are provided in the both side plate portions of the receiving device, respectively, and the extended portion of the center line of both hole portions is the center of the column member. Since the configuration is biased to the left or right side of the line, the large pulling material can be fixed easily and the workability is excellent.

  According to the corrugated floor structure according to the present invention, the space between the first large pulling support member and the second large pulling support member of the corrugated floor support leg is adjusted to the raised height of the corrugated floor, and the lateral large first Because a large pulling material is disposed between the pulling support members and between the second large pulling support members, and a step floor material is formed between the upper portions of these large pulling materials to form a stepped floor surface. In addition, since the corrugated floor can be completed by assembling the components mainly using screws, etc., the work can be done quickly and easily, and it is excellent in productivity and workability. In addition, it is possible to form a stepped floor that can be set appropriately on the basic surface of a classroom, hall, etc. The effect is excellent.

It is a figure which shows the side surface of a corrugated-floor support leg and corrugated-floor structure (part) according to embodiment. It is a figure which concerns on embodiment and shows the principal part of a corrugated-floor structure. It is a figure which shows the 2nd large drawing support member which concerns on embodiment. It is a figure which shows the position adjustment tool of a 2nd large drawing support member, (a) shows the example which provided the penetration hole part, (b) shows the example which provided the notch part. It is a figure which shows a 2nd large drawing support member, (a) shows the example (2 examples) which formed the notch part in the position adjustment tool, (b) removed by the position adjustment tool which formed the notch part. The example which provided the prevention plate is shown. It is a figure which shows the example which attached the reinforcement member to the position adjustment tool, (a) shows the example which inserted the reinforcement member in the insertion hole part, (b) shows the example which inserted the reinforcement member in the notch part. . It is a figure which shows the front of a corrugated-floor support leg and corrugated-floor structure (part) concerning embodiment. It is a figure which concerns on embodiment and shows the whole side surface of a corrugated-floor structure. It is related with another 2nd large drawing support member, (a) is a figure which shows the other example of a position adjustment tool, (b) shows the other example of a receiving tool. (A) shows an example in which a large pulling material is placed on a holder and fixed with a screw, and (b) shows a large pulling material placed on the receiving member, fixed with bolts and nuts. FIG. It is a figure which shows the floor assembly method concerning a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a corrugated floor support leg 2 and the like according to the embodiment. The corrugated floor structure 3 using the corrugated floor supporting legs 2 is constructed on the basic surface 1 in a classroom, a lecture room, a conference room, a movie theater, a theater, a hall, a concert hall, an event hall, and other public facilities. It can be used for staircases that can be used for passenger seats and seats.
The corrugated floor structure 3 includes a corrugated floor support leg 2, a large pulling material 4, a step floor material 6 (a joist material, a foot board), and the like.

The corrugated floor support leg 2 includes a column member 8, a support base 9, a first large pull support member 10, a second large pull support member 12, and the like, and is entirely made of steel.
The first large pulling support member 10 and the second large pulling support member 12 of the corrugated floor support leg 2 respectively form an upper tread surface 14 and a lower tread surface 14 of an arbitrary kicking portion 13 of the corrugated floor. Support the base material. These base materials include a large drawing material 4 and a floor material 6 that form the base structure of the corrugated floor.

In the corrugated floor support leg 2, a column member 8 is erected on the upper portion of the support base 9, a first large pulling support member 10 is disposed on the upper portion of the column member 8, and a second large member is disposed on an intermediate portion of the column member 8. In this embodiment, the pulling support member 12 is attached.
The large pulling material 4 is attached to the first large pulling support member 10 and the second large pulling support member 12, respectively, and the upper portions of the stepped floor kicking portions 13 and the bases of the respective treads 14 of the lower step portions are formed. A stepped floor kicking portion 13 is formed at a portion between the first large pulling support member 10 and the second large pulling support member 12, and the distance between them is the height of the kicking up.

The support base 9 includes a flat holding portion 16, leg portions 17 and 17 formed obliquely downward from the left and right portions, and a fixing portion 18 formed horizontally outward from each leg portion 17. A holding hole 20 through which the support member 8 is inserted is provided at the center of the holding portion 16. It is also possible to adopt a form in which a screw groove is formed in the holding hole 20 and the support member 8 is screwed so as to be adjustable in height.
The fixing portion 18 of the support base 9 is fixed to the base surface 1 using a fastening tool such as an adhesive or a screw (concrete screw).

The column member 8 has a shape in which a screw groove is engraved on the entire columnar bar. The column member 8 is erected on the holding portion 16 of the support base 9 so that the height can be adjusted, using the nuts 22 and 23 and the washer 24.
A nut 22 is screwed in advance to the lower part of the column member 8, and a washer 24 is fitted to the lower side thereof. The lower part of the column member 8 is inserted into the holding hole 20 of the support base 9, and a nut 23 is screwed from below. Then, the holding portion 16 is sandwiched between these two nuts 22 and 23, and the support member 8 is fixed upright on the support base 9 in this state.

In addition, a nut can be fixed to the upper part or the lower part of the holding part 16 of the support base 9 by welding or the like, and the column member 8 can be screwed into the nut so that the height can be adjusted. Further, a unit type configuration in which the column member 8 is fixed to the support base 9 by direct welding or the like and standing is also possible.
Moreover, it can replace with the said support stand 9 and can also employ | adopt the form which fixed the support | pillar member 8 upright on the plate-shaped seating material. It is also possible to adopt a form in which the lower part of the column member 8 is directly embedded and fixed in the base surface 1 without using the support base 9 and is erected.

The first large pull support member 10 has a U-shaped receptacle 28 made up of a bottom plate portion 30 and left and right side plate portions 32. The receiving member 28 can place the large pulling material 4, but in addition, as long as the large pulling material 4 can be placed, such as a L-shaped cross section or a flat plate shape as the receiving member, Any shape can be adopted.
Further, a hole 34 is formed at the center of the bottom plate portion 30 of the first large pull support member 10, and the upper portion of the column member 8 can be inserted into the hole 34. And the nut 36 is being fixed to the lower part of the said baseplate part 30 at the same center position as the said hole 34 by welding.

In the receiving member 28 of the first pulling support member 10, holes 42 for attaching the pulling fixtures 37 are formed in the central portions near the upper portions of the left and right side plate portions 32.
As this large pulling fixture 37, what consists of a bolt 38 and a nut 40 is used, the shaft portion of this bolt 38 is inserted into each hole portion 42 of the left and right side plate portions 32, and the nut 40 is fastened from the outside. The large pulling material 4 in the receptacle 28 is fixed. Alternatively, a screw or the like may be screwed from the side plate portion 32 of the receiving tool 28 and further screwed into the side portion of the large pulling material 4 so that the large pulling material 4 is directly fixed to the receiving tool 28.

As shown in FIG. 3, the second pulling support member 12 has a position adjusting tool 44 and a receiving tool 46, and both of these steel materials are integrated by welding or the like.
As shown in FIG. 4A, the position adjuster 44 is a component having a rectangular section with a long vertical direction, which includes an upper plate portion 48, left and right side plate portions 50, and a lower plate portion 52. Here, the receiving tool 46 is fixed to the side plate portion 50 of the position adjusting tool 44.
An insertion hole portion 54 is formed at the center of the upper plate portion 48 of the position adjuster 44 and an insertion hole portion 56 is formed at the center of the lower plate portion 52. Can be inserted. The position adjuster 44 allows the column member 8 to be inserted into both the insertion holes 54 and 56, and in this state, the upper plate portion 48 and the lower plate portion 52 are fixed to the column member 8 using a nut or the like.

In addition to the position adjuster 44, as shown in FIG. 4B, cutout portions 55 and 57 can be provided instead of the both insertion hole portions. The notches 55 and 57 are formed from one side of each of the upper plate 48 and the lower plate 52 of the position adjusting tool 44 toward the center.
Here, the notches 55 and 57 have a predetermined width (from the center of each side of the upper plate 48 and the lower plate 52 on the side orthogonal to the side plate 50 to the center of each plate. The width is such that the column member 8 can be fitted, and the shape is notched.
In addition, the notches 55 and 57 can be formed on the side where the side plate portion 50 is formed (the side where the receiving tool 46 is not attached). In this case, the center portion of the side plate portion 50 is cut up and down by a predetermined width (width in which the support member 8 can be fitted), and the plates are directly removed from the center portions of the side portions of the upper plate portion 48 and the lower plate portion 52. It becomes the shape which notched the same width | variety toward the center part of the part.

In the position adjusting tool 44, the notches 55 and 57 are fitted into the support member 8, and the support member 8 is inserted into the notches 55 and 57 (rear part). In this state, a nut or the like is used. The upper plate portion 48 and the lower plate portion 52 are fixed to the column member 8. Also with respect to the position adjusting tool 44, the receiving tool 46 is fixed to the side plate portion 50.
When the position adjusting tool 44 (with the notches 55 and 57) is used, the second large pull support member 12 can be retrofitted, or can be easily replaced with another second large pull support member 12. . In this case, a nut or the like is screwed to the support member 8 in advance.

As shown in FIG. 5 (a), the notch of the position adjusting tool 44 has a notch 55, 57 and the like that are notched in one direction, and a shape that is bent at a right angle from one direction. There are notches 55a and 57a.
Further, as shown in FIG. 5B, when the notch portions 55, 55a and the like are provided in the position adjusting tool 44, it is preferable to use the detachment preventing plate 51. A concave engagement portion 53 is formed in the detachment prevention plate 51, and the engagement portion 53 is made to correspond to the notches 55, 55a and the like, and the support member 8 is sandwiched between them. The detachment prevention plate 51 is attached to the upper surface portion or the lower surface portion of the upper plate portion 48 (and / or the lower plate portion 52) provided with the notches 55, 55a and the like by using screws (or an adhesive) or the like. . By using the detachment prevention plate 51, the position adjusting tool 44 can be more firmly fixed to the column member 8.
Further, the side end portions of the side plate portions 50 of the position adjusting tool 44 can be slightly extended, and the extended portions can be bent inward to form the reinforcing pieces 49, 49, respectively. The strength of the position adjusting tool 44 is increased by the reinforcing piece 49.

In addition to the rectangular cross-section in which the side plate portions are formed on the left and right as the position adjusting tool 44, one of these side plate portions (the side not connected to the receiving tool 46) and / or the upper plate portion or the lower plate portion. A shape lacking one is also possible.
In addition, as the position adjusting tool 44, there are a shape such as a C-shaped section, a L-shaped (or inverted L-shaped) shape, a U-shaped (or inverted U-shaped) shape, a flat plate shape, etc. Any shape can be adopted as long as it is provided with an insertion hole portion through which the column member 8 can be inserted or a notch portion into which the column member 8 can be inserted, and a portion where the receiving member 46 is connected.

Here, as the position adjuster 44, the C-shaped cross section has, for example, a shape in which one side plate portion having a rectangular cross section is missing, and in this case, the upper plate portion and the lower plate portion respectively. An insertion hole portion or the like is provided to insert the support column member 8 and the receiving member 46 is joined to the other side plate portion.
In addition, in the L-shaped (or inverted L-shaped) and U-shaped (or inverted U-shaped) sections, an insertion hole portion is provided in a lateral portion, and the receiving member 46 is joined to the longitudinal portion. The flat plate is formed to have a plate thickness, and a position closer to one side is used as a position adjusting tool, and an insertion hole is provided here to insert the column member 8, and a large pulling material is placed as a receiving tool on the other side. You may make it do.

  Further, in order to strengthen the fixing to the support member 8, for example, a position adjuster 44 is not hollow between the insertion holes, but is solid (filled) and has a solid shape (such as a rectangular parallelepiped). You can also In the case of this position adjuster 44, in order to insert the column member 8, a vertically extending through hole is provided in a rectangular parallelepiped material or the like, the column member 8 is inserted, and the receiving member 46 is fixed to the wall surface. The through hole may be provided with a thread groove formed on the inner periphery thereof, and the support member 8 may be screwed therein.

Further, as shown in FIG. 6A, the position adjusting tool 44 may be provided with a reinforcing member 69 so as to surround the column member 8. The reinforcing member 69 is made of a tubular (for example, cylindrical) steel material. The reinforcing member 69 has an inner diameter or the like larger (slightly) than the outer diameter of the column member 8 so that the column member 8 can be inserted through the inside.
The reinforcing member 69 is attached to the insertion holes 54 and 56 of the position adjustment tool 44 (having a larger inner diameter than when the column member 8 is directly inserted), and the reinforcement member 69 is connected to the insertion hole 54 of the upper plate portion 48 of the position adjustment tool 44. The lower plate portion 52 is inserted through and inserted between the insertion hole portions 56. Then, the reinforcing member 69 and the vicinity of the insertion hole portion 54 of the upper plate portion 48 and the vicinity of the insertion hole portion 56 of the lower plate portion 52 are fixed by welding, adhesion, or the like, respectively.
The insertion holes 54 and 56 of the position adjusting tool 44 can be reinforced by the reinforcing member 69, and the position adjusting tool 44 can be firmly fixed to the column member 8.

Further, as shown in FIG. 6B, in the case where the notch portions 55 and 57 are provided as the position adjuster 44, the groove-shaped reinforcing member 71 having a U-shaped cross section or a semicircle is provided on both sides. Fit and fit between the notches. Also in this case, the reinforcing member 71 and the vicinity of the notch portion 55 of the upper plate portion 48 and the vicinity of the notch portion 57 of the lower plate portion 52 are fixed by welding or the like. The position adjuster 44 is disposed in a state in which the groove-shaped portion of the reinforcing member 71 is fitted to the support member 8 and the support member 8 is inserted through the groove.
The reinforcing members 69 and 71 may be provided only in one of the upper and lower insertion hole portions and only in one of the notch portions. Further, by using the detachment preventing plate 51 together with the reinforcing members 69 and 71, the position adjusting tool 44 can be firmly fixed to the column member 8.

The receiver 46 is a U-shaped part including a bottom plate portion 58 and left and right side plate portions 60. In the vicinity of the upper portions of the left and right side plate portions 60 of the receptacle 46, hole portions 61 for attaching the large pull fixture 37 are formed. In addition, as the receiving device 46, each has a horizontally flat portion such as a rectangular cross-section, a cross-section C-shape, a cross-section L-shape (or inverted L-shape), a flat plate shape, etc. Any shape can be adopted as long as it is possible.
Here, each of the receiving tools 46 joins a vertical portion (or one end) or the like to the position adjusting tool 44. Further, as the receiving device 46, for example, a large cross-sectional material having a rectangular cross section is placed on the upper plate portion or the like, and a C-shaped cross section is, for example, a part of one side plate portion having a rectangular cross section. There is a chipped shape, and in this case as well, a large pulling material is placed on the upper plate or the like. In the L-shaped cross section and the flat plate shape, the large pulling material is placed on the horizontal plane portion.

The position adjuster 44 and the receiver 46 are integrated by joining the side plate portion 50 of the position adjuster 44 and the side plate portion 60 of the receiver 46 by welding or the like.
Normally, the receiving tool 46 is integrally formed on the side portion of the position adjusting tool 44, but in addition to this, the upper part (or the vicinity of the upper part) or the lower part (or the vicinity of the lower part) of the position adjusting tool 44, The support 46 can be attached using an auxiliary material (rib material or the like).
The position adjusting tool 44 and the receiving tool 46 as the second large pulling support member 12 are an insertion hole part through which the column member 8 can be inserted or a notch part into which the post member 8 can be inserted, and a receiver on which the large pulling material 4 can be placed. For example, in the case of a steel material having a cross-sectional L-shape, a cross-section R-shape, a cross-section C-shape, a plate-like shape, etc., it may be constituted by a single member.
Here, the L-shaped cross section is provided with a through-hole in the vertical part and the column member 8 is inserted therethrough, and the L-shaped cross section is provided with an insertion hole part at a position closer to the column. The member 8 is inserted, and the large pulling material is placed on the upper plate portion near the other side. In the case of a C-shaped cross section, for example, in a shape in which a part of one side plate portion having a cross-sectionally R-shaped shape is missing, the column member 8 is inserted in the same manner as in the above-mentioned cross-sectionally R-shaped, Place the material.

A rib member 62 having a right triangle shape is provided at the lower part of the receiving tool 46 to reinforce the fixing with the position adjusting tool 44. The rib member 62 has a shape in which the oblique sides of two pieces of a right triangle shape (long side portion, a short side portion orthogonal to this and the oblique side portion) arranged in parallel with each other are connected by a narrow plate piece. It is.
The rib member 62 has a long side portion fixed (welded) to the bottom plate portion 58 of the receiver 46 and a short side portion fixed (welded) to the side plate portion 50 of the position adjuster 44.
Note that the shape of the rib material is not limited to a right triangle shape, and various shapes such as a square shape and a rectangular parallelepiped shape can be adopted, and the shape, size, and number of installed rib materials depend on the desired reinforcing strength. Are appropriately selected.

In addition, as shown in FIG. 7, the lateral width of the side plate portion 50 of the position adjusting tool 44 of the second large pulling support member 12 and the lateral width of the side plate portion 60 of the receiving tool 46 are set to be approximately the same here. Then, the center part of the side plate part 60 of the receiving tool 46 is slightly deviated laterally with respect to the center part of the side plate part 50 of the position adjusting tool 44 (here, moved to the left in the figure), and both are fixed. doing.
In addition, the receiving tool 46 is disposed on the upper side with respect to the position adjusting tool 44 so that the hole 61 of the side plate portion 60 is positioned above the upper plate portion 48 of the position adjusting tool 44. Further, the hole portions 61, 61 of the side plate portions 60, 60 of the receptacle 46 are respectively in the same direction as the direction in which the receptacle 46 is moved from the central portion near the upper portion of the side plate portion 60 (leftward in the figure). It is formed at a position that is biased.

  This is because the large pulling material 4 is placed on the receiving member 46 of the second large pulling support member 12, and the bolts 38 of the large pulling fixture 37 are inserted into both hole portions 61, 61 of the receiving member 46. This is in consideration of workability when fastening. That is, the column member 8 and the nut 64 for fixing the position adjusting tool 44 and the like interfere with the attachment and fastening of the bolt 38 or the nut 40, so that the center positions of both the holes 61 and 61 of the receiving member 46 are set to the column member 8. It is slightly shifted (biased) from (core).

Further, in addition to the method of biasing the position of the receiver 46 with respect to the position adjuster 44, the size (vertical and horizontal) of the side plate portion 60 and the like of the receiver 46 is increased to attach the large pull fixture 37. And the position of the hole 61 that does not interfere with the fastening can be determined relatively freely.
In addition, the both side plate portions 60 of the receiving member 46 of the second large pulling support member 12 are extended above the large pulling material 4 so as to be squeezed inward above the large pulling material 4 (to narrow the interval). In this case, the attachment of the large pull fixture 37 does not get in the way. In this case, the position of the receiving tool 46 with respect to the position adjusting tool 44 or the position of the hole 61 of the receiving tool 46 can be determined relatively freely.

The position adjusting tool 44 and the receiving tool 46 of the second large pulling support member 12 are integrally fixed by welding or the like, but they are also fixed integrally by bolts (and nuts) or the like. It is also possible to do.
Further, the position adjusting tool 44 of the second large pull support member 12 has a shape in which a receiver 46 integral therewith can be attached to an intermediate position of the column member 8, and the receiver 46 mounts the large pull material 4. Any shape can be adopted as long as it is possible.

Here, the large pulling material 4 attached to the first large pulling support member 10 has an upper surface portion 45, left and right side surface portions 47, and a lower piece portion 43 formed inwardly from the lower portions of the respective side surface portions. A long steel material having a C-shaped cross section with an opening is used.
The large pulling material 4 has a square cross section. Alternatively, a square steel having a square cross section and no opening, or a square cross section (longitudinal or laterally long) may be used. Furthermore, as the large pulling material 4, it is possible to use steel materials having a C-shaped cross section (side portions and the like are open), H-shaped steel, cross-sectional hat-shaped steel, and the like.

The second pulling support member 12 may be of the same shape as the pulling material 4 attached to the first pulling support member 10 or may be a pulling material 4 having a different shape. Good.
In particular, when using a C-shaped steel material having a square cross section or an opening at the lower portion as the large pulling material 4 to be placed on the receiving member 46 of the second large pulling support member 12, it is particularly long (the longer side is longer). It is also effective to use one having a cross-sectional shape (longer than the horizontal side). In this case, since the center of the load from the large pulling material 4 is relatively close to the support member 8, the balance of the support by the corrugated floor support legs 2 is good.

Next, a method for assembling the corrugated floor support leg 2 will be described.
Here, first, the second large pulling support member 12 is attached to an intermediate portion of the support member 8 (below the first large pulling support member 10 and between the first large pulling support member 10 and the support base 9). The strut member 8 is inserted from the insertion hole portion 54 of the position adjustment tool 44 of the second large pulling support member 12 to the insertion hole portion 56 of the lower plate portion 52, and the second large pulling support member is inserted in the middle portion of the strut member 8. 12 is inserted.
Then, a nut 64 is screwed into the upper side of the upper plate portion 48 of the position adjusting tool 44 and the nut 64 is screwed, and a nut 66 is fastened from the lower side of the lower plate portion 52 with the washer 63 interposed therebetween. In the state where 44 is sandwiched from the upper and lower parts, the second pulling support member 12 is attached and fixed to the column member 8 so that the height can be adjusted.

At this time, a hollow plate washer member 67 is fitted between the lower plate portion 52 of the position adjusting tool 44 and the washer 63 (nut 66). The washer member 67 is made of steel and has the same size as the lower plate portion 52, and supports the position adjustment tool 44 in a wide area to reinforce and strengthen the support by the nut 66.
By adjusting the nuts 64 and 66, the second large pulling support member 12 can be arranged in the middle portion of the column member 8 so that the height can be adjusted, and is attached to a predetermined position of the column member 8. Specifically, the second large pulling support member 12 is attached to the corresponding position of the support column member 8 at a position substantially lower than the first large pulling support member 10 by a height above the kick.
Even when the position adjusting tool 44 is provided with the reinforcing member 69, the column member 8 is inserted into the reinforcing member 69, and the position adjusting tool 44 is attached to the column member 8 in the same manner as described above.
In addition, since the position adjusting tool 44 provided with the notch portion 55 can be retrofitted, the position adjusting tool 44 is fitted into the column member 8 at an appropriate time, and the nuts 64, 66, etc. Use to fix.

  Subsequently, the vicinity of the lower portion of the column member 8 is attached to the holding portion 16 of the support base 9. At this time, the lower portion of the column member 8 is inserted into the holding hole 20 of the support base 9, the nut 22 and the washer 24 are used from above the holding portion 16, and the nut 23 is used from below to fasten the column member 8. 9 is fixed upright.

Finally, the first pulling support member 10 is attached to the upper portion of the support member 8. First, a nut 68 is screwed in the vicinity of the upper portion of the column member 8, a washer 63 is interposed in the upper portion thereof, and the upper end portion of the column member 8 is attached to the nut 36 fixed to the lower portion of the first large pull support member 10. Screw in. At this time, the upper end portion of the support member 8 can pass through the hole portion 34 of the receiver 28 at the top of the nut 36 and can enter the interior of the receiver 28.
As a result, the height of the column member 8 can be adjusted with respect to the support base 9 and the height position of the second large pull support member 12 with respect to the column member 8 can be freely adjusted. The height of the first large pulling support member 10 with respect to the support member 8 can also be adjusted.

When the stepped floor support leg 2 receives a load from the large pulling material 4 by the support 46 of the second large pulling support member 12, the center of the load is biased from the center of the column member 8 toward the support 46. ing. Further, the center of the first pulling support member 10 is made to coincide with the center of the support member 8, so that the pulling material 4 is supported at the center of the support member 8 without being biased.
In this case, in a corrugated floor or the like where a considerable load is expected to be applied to both the first large pulling support member 10 and the second large pulling support member 12, for example, in order to balance the support of the corrugated floor support legs 2, It is also possible to dispose the center position of the first large pull support member 10 so as to be deviated from the center of the column member 8 to the side opposite to the position where the receiving member 46 of the second large pull support member 12 is disposed.

In other words, the support 46 of the second pulling support member 12 is arranged on the right side in the drawing (FIG. 1 and the like) with respect to the column member 8. The center supporting the material) is deviated to the left side in the figure with respect to the support member 8 (eccentric).
Specifically, a hole 34 or the like formed in the center portion of the bottom plate portion 30 of the first large pull support member 10 is formed at a position to the right of the bottom plate portion 30 (in the drawing), and the column member 8 is formed at this position. Support.
Thereby, the load from the first large pull support member 10 and the second large pull support member 12 (receiving tool 46) applied to the corrugated floor support leg 2 is distributed to both sides (left and right in the figure) of the column member 8, The support balance of the corrugated floor support leg 2 is improved.
In addition, in order to balance the support of the corrugated floor support leg 2, diagonal members are arranged from the column member 8 of the corrugated floor support leg 2 to the front of the foundation surface 1 to reinforce the fixing of the corrugated floor support leg 2. May be.
Normally, by placing and attaching the flooring material 6 (the joists 74 and the footboard 76) to each step of the corrugated floor, the lateral movement of the corrugated floor supporting leg 2 is automatically stopped, and the corrugated floor supporting leg 2 is It will be fixed and support balance will be taken.

Otherwise, the same member as the second large pulling support member 12 is used instead of the first large pulling support member 10 in the upper stage. That is, another second large pulling support member 12 is disposed in the vicinity of the upper end of the column member 8, and the receiving member 46 is disposed on the side where the receiving member 46 of the second large pulling supporting member 12 in the lower step is disposed (see FIG. 1 on the right side in FIG. 1 and the left side in FIG.
Thereby, the load from each 2nd large drawing support member 12 (receiving tool 46) which forms the upper step part and lower step part added to the corrugated floor support leg 2 is disperse | distributed to the both sides (right and left in FIG. 1) of the support | pillar member 8. The support balance of the corrugated floor support leg 2 is improved.

Moreover, when making the floor support leg 2 into a unit type that matches the size according to the height, it is not necessary to adjust the height. For this reason, the column member 8 is formed of a simple rod-shaped member (without a screw groove), and the column member and the support base 9, the first large pull support member 10, and the second large pull support member 12 are respectively A fixed form by welding or the like is also possible.
Further, the height of the position adjusting tool 44 can be adjusted to the column member 8 without using a nut by, for example, engraving screw grooves in the insertion holes 54 and 56 of the position adjusting tool 44 of the second large pulling support member 12. It can be screwed as possible. Further, only the insertion hole portion 54 of the upper plate portion 48 is provided with a thread groove, and the nut 66 is used only at the lower portion of the insertion hole portion 56 of the lower plate portion 52, and the position adjusting tool 44 is screwed to the column member 8. You can also

Next, construction and the like of the corrugated floor structure 3 using the corrugated floor support legs 2 will be described.
Here, the corrugated floor of the corrugated floor structure 3 is constructed on the basic surface 1 of a building (educational facility or the like). This step floor is constructed, for example, from the middle part of the foundation surface 1 in the front-rear direction to the entire rear part.
In many cases, the base surface 1 is flat, but even if the base surface 1 is inclined due to the use of sloping ground or the like, there is no problem by adjusting the height of the corrugated floor support legs 2 or the like. Can be built.

In construction, first, as shown in FIG. 8, a plurality of stepped floor support legs 2 are arranged in the front-rear direction of the foundation surface 1. The interval between the corrugated floor support legs 2 is determined based on the size of the tread surface 14 or the like. The corrugated floor supporting leg 2 uses a corrugated floor supporting leg 2 that is higher in length as it goes rearward.
An intermediate floor support leg 70 having a normal shape is arranged at the center between the corrugated floor support legs 2 to reinforce the center part of the tread surface 14. The intermediate floor support leg 70 has a shape in which a bolt material is erected on a support base, and a support for a large pull support member is attached to only the upper end portion of the bolt material so that the height can be adjusted.
The length of the large pulling support member of the intermediate floor support leg 70 is the height of the first large pulling support member 10 of the immediately preceding (same step) stepped floor supporting leg 2 (this is the second height of the immediately following stepped floor supporting leg 2). The same as the height of the large pull support member 12).
If a normal floor support leg having the same height as this is disposed near the rear wall of the rearmost stepped floor support leg 2, the uppermost tread surface 14 of the stepped floor can be formed.

Further, in the lateral direction of the base surface 1, the corrugated floor support legs 2 having the same length are arranged in a row at a predetermined interval. The distance between the horizontal corrugated floor support legs 2 is adjusted according to the load applied to the tread surface 14 or the like. The intermediate floor support leg 70 is also arranged in the same manner and the interval is adjusted.
The corrugated floor support leg 2 fixes the fixing portion 18 of the support base 9 to the base surface 1. At this time, if an elastic plate 19 made of rubber or the like is interposed between the base surface 1 and the fixing portion 18, the adhesion is good and the fixing is stabilized and the squeaking noise is prevented. Similarly, the intermediate floor support leg 70 is fixed to the base surface 1.

  Then, the height of the first large pulling support member 10 of the front corrugated floor support leg 2 and the height of the second large pulling support member 12 of the corrugated floor support leg 2 immediately after that are adjusted to be the same. Moreover, the space | interval (difference of both heights) of the 1st large pull support member 10 and the 2nd large pull support member 12 of each corrugated floor support leg 2 is adjusted to the height of the kick-up of the corrugated floor. The height of each of the rear corrugated floor support legs 2 is adjusted in the same manner.

A floor support leg 72 having a low height is disposed in front of the foremost corrugated floor support leg 2. This is because the front side of the corrugated floor has a low floor height, making it difficult to use the corrugated floor support legs 2. The floor support leg 72 has a shape in which a bolt material is erected on a support base, and a support for a large pull support member is attached to only the upper end portion of the bolt material so that the height can be adjusted.
The height of the floor support leg 72 is adjusted to be the same as the height of the second large pull support member 12 of the foremost floor support leg 2. Then, an intermediate floor support leg 70 having the same height as the floor support leg 72 is disposed at an intermediate portion between the corrugated floor support leg 2 and the floor support leg 72.

Further, a floor support leg 72 having a height lower than the floor support leg 72 disposed in front of the floor support leg 72 is disposed. A floor support leg 72 having the same height is also disposed in front of the floor support leg 72. An intermediate floor support leg 70 having the same height as the floor support leg 72 is also arranged in the middle part of both floor support legs 72. In addition, in the lateral direction of each floor support leg 72, floor support legs 72 having the same length are arranged in a line at a predetermined interval.
The distance between the horizontal floor support legs 2 and the distance between the floor support legs 72 are adjusted according to the load, for example, 50 to 200 cm. Further, the interval between the intermediate floor support legs 70 in the horizontal direction is similarly adjusted.

Then, as shown in FIG. 7, the large pulling material 4 is disposed between the first large pulling support members 10 and between the second large pulling support members 12 of the corrugated floor support legs 2 disposed in the respective lateral directions. The large pulling material 4 is placed on the receiving members 28 and 46 of the first and second large pulling support members. Similarly, the large pulling material 4 is also placed between the supports of the intermediate floor support legs 70 arranged in the lateral direction.
At this time, an elastic plate material 73 made of rubber or the like may be interposed between the inner sides (lower part, left and right side parts) of the receivers 28, 46, etc. Sound and the like can be prevented. In addition, a large pulling fixture 37 is fastened to the upper portion of each receiving tool to sandwich the large pulling material 4 and the large pulling material 4 is fixed to the receiving tool.

Next, as a base of the tread surface 14 of each step of the stepped floor, the stepped floor material 6 is disposed on the front and rear large pulling members 4 supported at the same height by the stepped floor support legs 2 and the like. Here, the joist material 74 and the footboard 76 are used as the floor material 6 of the corrugated floor.
As the joist material 74, a long steel material having a hat-shaped cross section including an upper surface portion 78, both side surface portions 79, and left and right flange portions 80 is used. In addition, as the joist material 74, H steel, square steel, or the like can be used.
As the tread board 76, for example, a board material such as plywood can be used. Here, a softwood plywood having a thickness of 12 mm is formed into a rectangular shape or the like. Similarly, a board material such as plywood is also used for the kick plate 82.

The joist material 74 is laid between the large pulling material 4 at the front end and the large pulling material 4 at the rear end of each step, and is arranged in a direction orthogonal to each large pulling material 4.
The joists 74 are similarly arranged at predetermined intervals in the horizontal direction of each step. This interval may be determined in consideration of the load on the tread surface 14, the strength of the tread plate 76, and the like, for example, an interval of 20 to 100 cm. The joist member 74 is fixed to the upper surface portion 45 of the large pulling member 4 by using a fastener such as a screw (self-drilling screw or the like) for the flange portion 80.

Then, a tread plate 76 is laid on the top of each joist member 74 to form the stepped surface 14 of the stepped floor. Here, two footboards 76 are laid on top of each other. The footboard 76 is fixed to the upper surface portion 78 of the joist member 74 using screws or the like.
Thus, the base of the tread surface 14 of the upper step portion of the step floor is formed by the first large pull support member 10 of the step floor support leg 2, and the base of the tread surface 14 is formed on the lower step portion of the second step pull support member 12. Form. The interval between the upper and lower treads 14 is the height of the kick-up.
When the tread plate 76 is formed of a relatively strong board material, the tread plate 76 is directly disposed on the upper surface portion 45 of each large pulling material 4 without using the joist material 74 to form the tread surface 14. It is also possible.

In addition, a kick plate 82 is disposed on the kick section 13 of each step floor to form a kick surface.
At this time, the kick fixing bracket 84 is attached to the end portion of the joist member 74 disposed on the upper side of the step floor. The kick-in fixture 84 is made of metal (light metal or the like) or synthetic resin, and has a rectangular fixed plate portion 86, side piece portions 87 and 87 bent laterally from the left and right portions of the fixed plate portion 86, and a fixed plate. It has a contact piece 88 extending downward from the portion 86.
The kick-fixing metal fitting 84 has both side pieces 87 and 87 fitted to the outside of both side face portions 79 at the end of the joist member 74, and screws or the like are screwed from the respective side piece portions 87 to both side face portions 79 of the joist member 74. To fix.

On the other hand, on the lower side of the step floor, a fixing member 90 made of a bar material such as a wooden square member is disposed laterally in the vicinity of the end portion of the step plate 76 and fixed to the step plate 76 with screws, an adhesive or the like. In addition, since there is no step board 76 in the lowermost part of the corrugated floor, the fixing material 90 is arranged and fixed directly on the foundation surface 1.
When the kick plate 82 is arranged vertically, the front side portion of the lower stage fixing member 90 is positioned directly below the fixing plate portion 86 of the kick fixing bracket 84 attached to the upper joist member 74.
Then, as the kick plate 82, a long material having a width that is the height of the kick-up is disposed in the kick portion 13. The kick plate 82 is fixed to the fixing plate portion 86 of the kick fixing bracket 84 by using a screw 92 (self-drilling screw or the like) near the upper portion, and the lower portion is fixed to the fixing member 90 side by using the screw 92. Attach the unit fixedly.

After the stepping plate 76 and the kick plate 82 are laid on the entire step floor, a sheet-like surface material is laid on the surface of each step plate 76 and the kick plate 82 with an adhesive or the like to finish the whole.
As described above, the corrugated floor of the corrugated floor structure 3 using the corrugated floor support legs 2 is constructed on the basic surface 1 of a classroom or the like. Then, a desk, a chair, a chair for a passenger seat, and the like are installed on each tread surface 14 of the corrugated floor structure 3 as necessary.

Therefore, according to the above embodiment, since the base of each tread of the upper and lower steps of the step floor is formed with one step floor support leg, the material is reduced and the economy is excellent. Since the work related to construction is easy, the efficiency of the work can be improved and the productivity and workability are excellent.
In addition, when constructing a corrugated floor structure using the corrugated floor support legs, it is possible to complete the corrugated floor by assembling each member mainly using screws or the like on site, so that the work can be performed quickly and easily. It is excellent in productivity and workability, and a stepped floor structure that can be set as appropriate, such as the size of the tread surface and the height of the kick, can be formed on the basic surface of classrooms, halls, etc. There is an effect that the degree of freedom of the structure is high and the extensibility is excellent.

In addition, as another form, the second large pulling support member 12 of the corrugated floor support leg 2 can adopt the following form and can obtain the same effect.
For example, the corrugated floor support leg 2 shown in FIG. 9A is an example in which the position adjustment tool 44 of the second large pulling support member 12 has a C-shaped cross section and a part of the side plate portion is missing. It is. The position adjuster 44 has a shape in which insertion holes 54 and 56 are provided in the upper plate portion 48 and the lower plate portion 52, respectively, the support column member 8 is inserted, and the receiving member 46 is joined to the side plate portion 50.
The corrugated floor support leg 2 shown in FIG. 9B is an example using a reverse L-shaped cross section as the receiver 46 of the second large pull support member 12. The second large pulling support member 12 joins (fixes, etc.) the vertical fixing portion 94 of the receiving member 46 to the side plate portion 50 of the position adjusting tool 44, and the large pulling material 4 on the upper portion of the horizontal mounting portion 95. (Cross-section hat shape) is placed, and the flange portion of the large pulling material 4 is fixed using screws 96 or the like.

10 (a) and 10 (b) is a structure in which a position adjusting tool 44 and a receiving tool 46 are continuously integrated as the second large pulling support member 12. The second large pulling support member 12 is composed of a single part having a square cross-section (horizontally long), and is provided with insertion holes 54 and 56 at one side (left side in the figure). The member 8 is inserted, and the large pulling material 4 is placed on the upper part of the upper plate portion 97 near the other side (rightward in the drawing). Here, the part provided with the insertion holes 54 and 56 (C-shaped cross section) corresponds to the position adjusting tool 44, and the part where the large pulling material 4 is placed (C-shaped cross section, but in the opposite direction). Corresponds to the receptacle 46.
The second large pulling support member 12 shown in FIG. 10 (a) has a large pulling material 4 (having a cross-sectional hat shape) placed on the upper plate portion 97 of the receiving portion 46 and is large using a screw 96 or the like. The flange portion of the pulling material 4 is fixed.
Further, the second large pulling support member 12 shown in FIG. 10B has the large pulling material 4 (cross-shaped square shape) placed on the upper plate portion 97 of the receiving portion 46, and the upper and lower portions of the corresponding portion. A hole is formed in the upper plate portion 97 of the through-hole and the receiving portion 46 at the same location, and a bolt 98 is inserted from above the large pulling material 4 so as to protrude below the upper plate portion 97 of the receiving portion 46, This is a shape in which the nut 99 is fastened and the large pulling material 4 is fixed to the receiving tool 46.

DESCRIPTION OF SYMBOLS 1 Base surface 2 Corrugated floor support leg 3 Corrugated floor structure 4 Large pulling material 6 Stepping material 8 Supporting member 9 Support stand 10 First large pulling support member 12 Second large pulling support member 13 Kicking part 14 Tread surface 44 Position adjustment Tool 46 Receiving tool 48 Upper plate portion 50 Side plate portion 52 Lower plate portion 54, 56 Insertion hole portion 69, 71 Reinforcing member

Claims (10)

A corrugated floor support leg for supporting each of the base material of the upper tread surface and the lower tread surface of an arbitrary kicking portion of the corrugated floor,
A strut member that is placed and erected on the foundation surface;
A first large pulling support member that is disposed on an upper portion of the support member and places and supports the large pulling material related to the base formation of the upper tread surface;
A stepped floor support leg, comprising: a second large pulling support member that is attached to the support member and mounts and supports the large pulling material related to the base formation of the lower tread surface.   The second large pulling support member has a position adjusting tool attached to the column member and a receiver integrally formed with the position adjusting tool, and the large pulling material is placed on the receiving tool. The corrugated floor support leg according to claim 1.   The position adjustment tool for the second large pulling support member has a rectangular cross section, a C cross section, an L cross section or an inverted L shape, or a flat plate shape, and an insertion hole or a post through which the post member can be inserted. The corrugated floor support leg according to claim 2, wherein the member has a cutout portion into which the member can be fitted.   The position adjustment tool for the second large pulling support member is formed into a rectangular cross section including an upper plate portion, side plate portions bent downward from left and right portions of the upper plate portion, and a lower plate portion, and the upper plate The corrugated floor support leg according to claim 2, wherein a notch portion into which the insertion hole portion or the column member into which the column member can be inserted is provided in each of the upper portion and the lower plate portion.   5. A cylindrical or groove-shaped reinforcing member is fitted in the insertion hole or notch of the position adjuster, and the support member is inserted into the reinforcing member. The corrugated floor support leg described in 1.   The receiving member of the second large pulling support member has a U-shaped cross section, a rectangular cross section, a C cross section, a L cross section or an inverted L shape, or a flat plate shape. The corrugated floor support leg in any one of thru | or 5.   The receiver of the second pulling support member is formed in a U-shaped cross section consisting of a bottom plate part and left and right side plate parts, and a pulling fixture can be attached in the vicinity of the upper part of both side plate parts of the receiver. The corrugated floor support according to any one of claims 2 to 5, wherein a hole is provided, and an extended portion of a center line of both the holes is biased to the left or the right from the center line of the support member. leg.   The step support leg according to any one of claims 1 to 7, wherein a screw groove is formed in the support member, and the second pulling support member is attached to the support member so that the height thereof can be adjusted. .   The stepped floor according to any one of claims 1 to 8, wherein the supporting column member is fixedly erected on the upper surface of the support base disposed on the foundation surface or is erected so that the height can be adjusted. Support leg. The stepped floor support leg according to any one of claims 1 to 9 is disposed in the front-rear direction of the foundation surface,
The interval between the first large pulling support member and the second large pulling support member of any of the above-mentioned corrugated floor support legs is adjusted to the raised height of the corrugated floor, Adjusting the height of the pulling support member and the height of the second large pulling support member of the stepped floor support leg immediately after that,
For each of the above-mentioned corrugated floor support legs, the corrugated floor support legs of the same length are arranged in a row in the lateral direction, and between the first large pulling support members of each of the corrugated floor support legs arranged in the lateral direction and the second large pulling support A large pulling material is disposed between the members, and these large pulling materials are respectively attached to the first large pulling support member and the second large pulling support member,
Between the upper part of the large pulling material attached to the first large pulling support member of the optional corrugated floor support leg and the upper part of the large pulling material attached to the second large pulling support member of the corrugated floor support leg immediately thereafter, A corrugated floor structure in which the floor surface of the corrugated floor is formed by arranging the floor material.

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