JP4975051B2 - Scaffold assembly and disassembly method - Google Patents

Description

  The present invention relates to a scaffold assembly and disassembly method.

  In a construction site, a scaffold formed by adjoining and stacking a plurality of scaffold units on the left and right and top and bottom along a building frame is used. Examples of the scaffold unit include a detachable connection type (wedge tight connection type) scaffold unit described in Patent Document 1, and a frame-type scaffold unit described in Patent Document 2.

  The removable connecting type scaffolding unit is a front connecting material that is provided above the tread of each column by connecting each of the horizontal member, the front connecting member, and the rear connecting member to the column via an attaching / detaching connecting portion. And the rear connecting material is a handrail. The removable connecting type scaffolding unit handles each material such as pillars, horizontal members, front connecting materials, and rear connecting materials as separate bodies, and there is no bulkiness during transportation and storage, and each material can be handled lightly and in a short time. It can be unitized, and it can also be unitized by absorbing deformation strain due to the use of each material. In addition, by adopting a long pillar, a scaffold such as two or three layers (for the second or third floor of a building) can be constructed with one scaffold unit.

  The frame-type scaffolding unit connects the corresponding columns of the front and back to each other so as to form a frame with a horizontal member, or the front columns are connected by the front connecting material, and the rear columns are connected by the rear connecting material, respectively. Connect together to form a frame. The frame type scaffold unit can construct a high-strength unit by connecting the opposing frames to each other in a fixed manner by bracing. However, since each material is handled as a frame from the beginning, the bulk during transportation and storage is large, the unitization work becomes heavy work, and the frame that caused the deformation strain cannot be used for unitization. There is an inconvenience.

JP-A-6-280382 JP2003-138742

  Scaffolding units such as detachable and connected scaffolding units and frame-type scaffolding units are lifted by a crane unit to lift the scaffolding unit united on the ground and improve the safety and productivity of scaffold assembly and disassembly at the construction site. It is supposed to be mounted on and connected to the already installed scaffolding unit, or the used scaffolding unit in the upper layer is removed from the lower scaffolding unit and suspended on the ground with a crane or the like.

  In the prior art, a suspension wire provided on a crane or the like is attached to a scaffold unit to lift and suspend them, and has the following problems.

  When suspending and attaching a detachable connection type scaffolding unit with a suspension wire provided on a crane or the like, for example, when multiple front and rear columns are provided in multiple rows (3 or more) in the left and right direction, the columns on both the left and right sides respectively If only the suspension wire is attached to the suspension wire, the middle pillar in the left-right direction will fall due to the wedge connection with the front / rear coupling material falling, or the front / rear coupling material where the middle pillar is wedge-coupled will sink greatly. As a result, it may hang down and cause wedge breakage or the like. On the other hand, when attaching all the pillars in the left-right direction to the suspension wire and suspending them on the front and rear sides, as many suspension wires as the number of columns are required.

  Basically, to attach and detach the pillars of the detachable coupling type scaffolding unit to the suspension wire, install attachments at the ends of multiple suspension wires and attach and remove the pillars individually to each attachment of the suspension wire. It is necessary to do this, and the attachment work of the suspension wire becomes complicated.

  When suspending a frame-type scaffolding unit with a suspension wire provided on a crane or the like, for example, when multiple columns (three or more columns) are provided in the left-right direction, only the columns on both the left and right sides of the front and rear are provided. If it is attached to a suspension wire and suspended, it may hang down so that the intermediate frame in the left-right direction sinks greatly, thereby causing deformation strain. On the other hand, when attaching all the pillars in the left-right direction to the suspension wire and suspending them on the front and rear sides, as many suspension wires as the number of columns are required.

  Basically, in order to attach and suspend the pillars of the frame type scaffolding unit to the suspension wires, attachments are provided at the ends of the plurality of suspension wires, and the attachments are individually attached to and detached from the attachments of the suspension wires. It is necessary and the installation work of the suspension wire becomes complicated.

  An object of the present invention is to suspend a scaffold unit safely, reliably, and easily with a suspension wire provided on a crane or the like.

The invention of claim 1 includes a plurality of front and rear columns, a horizontal member that connects the front and rear corresponding columns in pairs, a front connecting member that connects the front columns, and a rear column. In a method for assembling and disassembling a scaffold, a plurality of scaffold units each having a rear connecting material for connecting each other and a step board supported at a predetermined height position of each pillar are stacked in the vertical direction. A step of lifting or lowering the scaffold unit via a suspension beam that is arranged so as to cross all the columns before and after the unit and is stopped at least in the axial direction on each column, the scaffold unit comprising: Each of the horizontal member, the front connecting member, and the rear connecting member is connected to the pillar via the attaching / detaching connecting portion, and the attaching / detaching connection is made by a combination of a wedge receiver provided on the pillar and a wedge body provided on each member. Wedge-type scaffolding unit that constitutes the part, the hanging beam It is obtained so as to be fastened against the bottom of the wedge receiving each column.

  According to a second aspect of the present invention, in the first aspect of the present invention, the suspension beam further comprises a front suspension beam that is secured to all the pillars on the front side of the scaffold unit and a rear suspension beam that is secured to all the pillars on the rear side. It is what I did.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the scaffold unit connects the front and rear columns corresponding to each other so as to form a frame with a horizontal member, or the front columns are connected to each other. It is a frame-type scaffold unit in which the rear columns are integrally connected to each other so as to form a frame by the rear connecting material by the front connecting material .

(Claim 1)
(a) The scaffold unit is lifted or suspended via a suspension beam that is arranged so as to cross all the columns before and after the scaffold unit and is stopped at each column at least in the axial direction. Therefore, even if there are a large number of pillars before and after the scaffold unit, a suspension beam that crosses all the front and rear pillars is prepared without preparing a large number of suspension beams. By stopping at, the suspension beam can be easily attached to the scaffold unit and suspended.

  (b) By hanging the suspension beam directly on all the front and rear columns in the axial direction, the entire scaffold unit is suspended without being deformed so as to sag the intermediate columns and connecting materials. It is possible to suspend the scaffold unit safely and securely.

(c) The scaffold unit is of a detachable connection type in which each member of the horizontal member, the front connection member, and the rear connection member is connected to the column via the attachment / detachment connecting portion. Advantages of detachable connection type scaffolding units (pillars, horizontal members, front connection materials, rear connection materials, etc. are handled separately, and there is no bulkiness during transportation and storage, and each material is light and short. By adopting long pillars that can be unitized in time and can absorb deformation strain due to the use of each material, one scaffold unit can be used for 2 or 3 layers (2nd or 3rd floor of a building) While building a scaffold (such as a floor), the assembly and dismantling of scaffolds at the construction site can be performed by lifting / suspending a unit of these materials on the ground. Can be improved.

  Even if there are a large number of front and rear columns of the detachable connection type scaffold unit, it is possible to suspend the scaffold unit safely, reliably and simply by preparing a suspension beam that crosses all the front and rear columns.

(d) The detachable connection type scaffolding unit is a wedge binding type scaffolding unit that constitutes the detachable connection part by a combination of a wedge receiver provided on the pillar and a wedge body provided on each material, and the suspension beam is provided on each pillar. It is stopped by the lower part of the wedge holder. Therefore, the suspension beam can be easily attached to the scaffold unit by attaching suspension beams crossing all the front and rear pillars to the pillars and holding them to the lower portions of the wedge receivers of the pillars. In addition, since the entire detachable connection type scaffolding unit can be hung without being deformed, there is no possibility of breakage of the column wedge holder, the wedge body of each material, or the like.

(Claim 2)
(e) The suspension beam is composed of a front suspension beam that is fixed to all pillars on the front side of the scaffold unit and a rear suspension beam that is secured to all pillars on the rear side. Therefore, it is possible to suspend the scaffold unit safely, surely and simply by the above-described (a) and (b) using the front and rear suspension beams.
(Claim 3 )
(f) The scaffold unit connects the front and rear corresponding pillars integrally with each other so as to form a frame with a horizontal member, or the front pillars are connected by the front connecting member, and the rear pillars are connected by the rear connecting member. Each frame is a frame type that is integrally connected to form a frame. While enjoying the merits of frame type scaffolding units (high strength units can be constructed by connecting the opposing frames to each other in a fixed manner by bracing), those materials are unitized on the ground. / Can be suspended to improve the safety and productivity of assembly and dismantling of scaffolds at construction sites.

  Even if the number of pillars before and after the frame-type scaffolding unit is large, it is possible to suspend the scaffolding unit safely, surely, and simply by preparing a suspension beam that crosses all the pillars before and after.

FIG. 1 is an overall perspective view showing a construction state of the scaffold unit. FIG. 2 is a perspective view showing the construction process of the scaffold unit. FIG. 3 is a perspective view showing a suspension beam attached to the scaffold unit. FIG. 4 is a front view showing the pillar and the suspension beam of the scaffold unit. FIG. 5 is a perspective view showing a suspended state of the scaffold unit by a crane.

  The scaffold unit 10 shown in FIG. 1 includes a plurality of front (four in this embodiment) pillars 11A, a plurality of rear (four in this embodiment) pillars 11B, and corresponding front and rear pillars. 11A, 11B paired with the horizontal member 12, the front connecting member 13A connecting the front pillars 11A, the rear connecting member 13B connecting the rear pillars 11B, and the pillars 11A, 11B And a tread plate 14 supported at a predetermined height position. In the scaffold unit 10, the side far from the housing of the building where the scaffold unit 10 is used is the front side, and the side close to the housing is the rear side.

  The scaffold unit 10 of this embodiment is a detachable connection type, and each of the horizontal member 12, the front connection member 13 </ b> A, and the rear connection member 13 </ b> B is connected to the columns 11 </ b> A and 11 </ b> B via the attachment / detachment connection part 20. Thus, the front connecting member 13A and the rear connecting member 13B provided above the treads 14 of the pillars 11A and 11B are used as handrails 15 corresponding to the waist height of the operator. Two hooks 14 </ b> A provided at both end portions of the tread 14 are engaged with the adjacent horizontal members 12, 12.

  The detachable connection type scaffolding unit 10 of this embodiment is a wedge-tightening type, and includes two bag-shaped wedge receivers 21 and 21 provided on the front and back surfaces of the pillars 11A and 11B, and left and right side surfaces of the pillars 11A and 11B. The detachable connecting portion 20 is constituted by a combination of two bag-shaped wedge receivers 22 and 22 provided on the two sides and wedge bodies 23 provided at both ends of each material 12, 13 </ b> A and 13 </ b> B. In the present embodiment, the wedge receiver 21 is arranged on the lower side of the wedge receiver 22 so as to form a step. The wedge bodies 23, 23 at both ends of the horizontal member 12 are inserted into the opposite wedge receivers 21, 21 of the corresponding pillars 11 </ b> A, 11 </ b> B corresponding to the front and rear, and are pressed down to couple the wedges. The wedge bodies 23, 23 at both ends of the front connecting member 13A are inserted into the opposing wedge receivers 22, 22 of the adjacent front pillars 11A, 11A and pushed down to be wedge-coupled. The wedge bodies 23 and 23 at both ends of the rear connecting member 13B are inserted into the opposing wedge receivers 22 and 22 of the adjacent rear columns 11B and 11B and pushed down, thereby being wedge-coupled.

  Therefore, as shown in FIG. 2, the scaffold unit 10 is constructed as follows on the ground of the construction site.

  (1) The underbase 1 is installed on the ground, and the pipe jack 2 is seated on the underbase 1.

  (2) The lower end hollow part of each pillar 11A, 11B is inserted and supported by the pipe jack 2 on the underbase 1. The wedge bodies 23 at both ends of the horizontal member 12 are wedge-coupled to the wedge receivers 21 and 21 of the pillars 11A and 11B corresponding to the front and rear, and the front coupling member 13A is connected to the wedge receivers 22 of the adjacent pillars 11A and 11A on the front side. The wedge bodies 23 at both ends of the rear connection member 13B are wedge-coupled, and the wedge bodies 23 at both ends of the rear connecting member 13B are wedge-coupled to the wedge receivers 22 of the adjacent pillars 11B and 11B on the rear side. 12, hooks 14 </ b> A at both ends of the tread plate 14 are engaged.

  However, at the construction site, the scaffold unit 10 is constructed on the ground as described above, a plurality of scaffold units 10 are sequentially stacked in the vertical direction along the building frame, and the scaffold is assembled and then disassembled. That is, the scaffold unit 10 unitized on the ground is lifted by the crane 100 and mounted on and connected to the installed scaffold unit 10 on the lower layer side, or the used scaffold unit 10 on the lower layer is connected to the lower layer side scaffold. Remove from unit 10 and hang on the ground with crane 100. Hereinafter, a method for assembling and disassembling a scaffold using the scaffold unit 10 will be described.

  That is, according to the scaffold assembly and disassembly method of the present invention, as shown in FIGS. 1 and 3, the suspension beam 30 is arranged extending in the left-right direction so as to cross all the pillars 11A and 11B before and after the scaffold unit 10. It is assumed that the step of lifting or hanging the scaffold unit 10 is provided. At this time, the suspension beam 30 is stopped at least in the axial direction on the pillars 11A and 11B, and the suspension beam 30 on which the upward lifting force acts on the crane 100 is engaged with the pillars 11A and 11B in the axial direction. The suspension force can be transmitted to the entire scaffold unit 10 through 11A and 11B.

  In this embodiment, the suspended beer 30 includes a front suspension beam 31 (specifically, two front suspension beams that are attached to the front and rear surfaces of the pillar 11A and are paired with each other). 31, 31) and a rear suspension beam 32 (specifically, two rear suspension beams 32 attached to the front and rear surfaces of the pillar 11B to be paired with the rear pillar 11B on the rear side of the scaffold unit 10). 32). As shown in FIGS. 1, 3, and 4, the front suspension beams 31, 31 made of two L-shaped steels sandwich the entire column 11 </ b> A from both sides of the back, and one end side of the front suspension beams 31 (two on the left side) Between the front suspension beams 31 and 31 by bolts 33 and nuts 34 inserted into the webs of the front suspension beams 31 on the other end side (between the two right pillars 11A). The entire pillar 11A is clamped. Further, as shown in FIGS. 1, 3, and 4, the rear suspension beams 32, 32 made of two L-shaped steels sandwich the entire column 11B from both sides of the back, and one end side of these rear suspension beams 32. At the other end (between the two right pillars 11B) (between the two left pillars 11B) and the bolts 33 and nuts 34 inserted into the webs of the rear suspension beams 32, the rear suspension beams are provided. The entire pillar 11B is sandwiched between 32 and 32.

  Further, the front suspension beams 31 are stopped by the respective pillars 11A in the axial direction by applying the flanges to the lower portions of the wedge receivers 21 provided on the front and back surfaces of the respective pillars 11A. Further, the rear suspension beams 32 are stopped on the respective pillars 11B in the axial direction by applying their flanges to the lower portions of the wedge receivers 21 provided on the front and rear surfaces of the respective pillars 11B. Note that a suspension ring 37 of a suspension wire 36 is detachably connected to two positions on both ends of each front suspension beam 31 and each rear suspension beam 32 via eyebolts 35 provided on the flanges. Yes.

  Accordingly, when the scaffold is assembled and disassembled, the scaffold unit 10 is suspended by the crane 100 as follows.

  (1) After constructing the scaffold unit 10 on the ground, an operator standing on the uppermost tread 14 causes the front suspension beams 31 and 31 to traverse all the pillars 11A of the scaffold unit 10 and the wedges of the pillars 11A. Axes are attached to the lower portions of the receivers 21 in the axial direction, and the rear suspension beams 32 and 32 are traversed across all the pillars 11B of the scaffold unit 10 while being axially attached to the lower parts of the wedge receivers 21 of the respective pillars 11B. Attach and fix with.

  (2) The suspension wire 36 of each front suspension beam 31 and the suspension wire 36 of each rear suspension beam 32 are hung on the hook 101 of the crane 100. The entire scaffold unit 10 is lifted by the crane 100 via the suspension beams 31 and 32 (FIG. 5). The lower end hollow portions of the pillars 11A and 11B of the scaffold unit 10 lifted by the crane 100 are inserted into the upper end tenons of the pillars 11A and 11B of the scaffold unit 10 already installed on the lower layer side of the scaffold, and the scaffold unit 10 is placed on the lower side scaffold unit. Mount on 10 and connect to assemble scaffolding. Each suspension beam 31, 32 is removed from the scaffold unit 10.

  (3) The front hanging beam 31 and the rear hanging beam 32 are attached to the used scaffold unit 10 in the upper layer of the scaffold in the same manner as in the above (1).

  (4) The suspension wire 36 of each front suspension beam 31 and the suspension wire 36 of each rear suspension beam 32 are hung on the hook 101 of the crane 100, and the scaffold unit 10 is connected by the crane 100 via the suspension beams 31 and 32. The whole is lifted off from the lower layer side scaffold unit 10, the scaffold unit 10 is suspended on the ground, and the scaffold is disassembled. Each suspension beam 31, 32 is removed from the scaffold unit 10.

According to the present embodiment, the following operational effects can be obtained.
(a) The scaffold unit 10 is arranged via the suspension beam 30 (31, 32) arranged so as to cross all the pillars 11A, 11B before and after the scaffold unit 10 and stopped at least in the axial direction by the pillars 11A, 11B. 10 is lifted or hung. Therefore, even if the number of the pillars 11A and 11B before and after the scaffold unit 10 is large, the suspension beam 30 crossing all the pillars 11A and 11B before and after without preparing a large number of suspension beams 30 (31, 32). (31, 32) is prepared, and the suspension beam 30 (31, 32) is simply attached to the scaffold unit 10 by stopping the suspension beam 30 (31, 32) at least on the pillars 11A, 11B in the axial direction. Can be hung.

  (b) By hanging the suspension beam 30 (31, 32) directly on all the front and rear columns 11A, 11B in the axial direction, the intermediate beams 11A, 11B, the connecting members 13A, 13B and the like are suspended. The entire scaffold unit 10 can be hung without being deformed without being lowered, and the scaffold unit 10 can be hung safely and reliably.

  (c) The suspension beam 30 (31, 32) includes a front suspension beam 31 that is secured to the entire pillar 11A on the front side of the scaffold unit 10 and a rear suspension beam 32 that is secured to the rear pillar 11B. Therefore, the scaffold unit 10 can be safely, reliably, and easily suspended by the above-described (a) and (b) using the front and rear suspension beams 31 and 32.

  (d) The scaffold unit 10 is formed by connecting the respective members of the horizontal member 12, the front connecting member 13A, and the rear connecting member 13B to the pillars 11A and 11B via the attachment / detachment connecting part 20, and each pillar 11A, The front connecting member 13 </ b> A and the rear connecting member 13 </ b> B provided above the 11 </ b> B tread 14 are made to be a detachable connecting type as a handrail 15. Advantages of the detachable connection type scaffolding unit 10 (the pillar, the horizontal member 12, the front connecting member 13A, the rear connecting member 13B, etc. are handled separately, and there is no bulk at the time of transportation and storage. It can be unitized in a short time with light work, and can absorb the deformation strain due to the use of each material, and can be unitized. By adopting a long column, one scaffold unit 10 can be used for two or three layers (building Assembling and dismantling the scaffolding at the construction site by hoisting / suspending the unitized materials on the ground Safety and productivity can be improved.

  An operator who attaches and detaches the suspension beam 30 (31, 32) on the tread 14 of the detachable coupling type scaffold unit 10 can also ensure safety of work by the handrail 15 provided at the waist height.

  Even if the number of the front and rear columns 11A and 11B of the detachable linkage type scaffolding unit 10 is large, the scaffold unit 10 can be mounted only by preparing the suspension beam 30 (31, 32) crossing all the front and rear columns 11A and 11B. It can be hung safely, reliably and easily.

  (e) A wedge-coupled scaffold unit 10 in which the detachable coupling-type scaffold unit 10 constitutes the detachable coupling part 20 by a combination of wedge receivers 21 and 22 provided on the pillars 11A and 11B and a wedge body 23 provided on each material. The suspension beam 30 (31, 32) is held against the lower portion of the wedge receiver 21 of each column 11A, 11B. Therefore, the suspension beam 30 (31, 32) crossing all the front and rear pillars 11A, 11B is attached to the pillars, and is attached to the lower part of the wedge receiver 21 of each pillar 11A, 11B, so that the suspension beam 30 ( 31, 32) can be easily attached to the scaffold unit 10. In addition, since the entire detachable connection type scaffolding unit 10 can be hung without being deformed, there is no possibility that the wedge receivers 21 and 22 of the pillars 11A and 11B, the wedge bodies 23 of each material, and the like will be broken.

  The scaffold unit to which the present invention is applied includes a plurality of front and rear columns, a horizontal member that connects the front and rear corresponding columns in pairs, and a front connecting member that connects the front columns. A scaffold unit comprising a rear connecting member for connecting the rear pillars and a step board supported at a predetermined height position of each pillar, and the corresponding pillars on the front and rear sides are supported by a horizontal member. A frame-type scaffolding unit (for example, specially connected to form a frame, or by integrally connecting the front columns to each other with a front coupling material and the rear columns to each other with a rear coupling material. It may be a scaffold unit A) described in Kai 2003-138742. When the present invention is applied to a method of assembling and disassembling a scaffold composed of a frame-type scaffold unit, the advantages of the frame-type scaffold unit (a high-strength unit can be constructed by fixedly connecting the opposing frames to each other by struts. ) Can be lifted / suspended by unitizing these materials on the ground to improve the safety and productivity of assembling and dismantling the scaffolding at the construction site.

  Even if the number of pillars before and after the frame-type scaffolding unit is large, it is possible to suspend the scaffolding unit safely, surely, and simply by preparing a suspension beam that crosses all the pillars before and after.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. For example, the suspension beam provided in the scaffold unit 10 may be a single beam that is commonly applied to the front and rear columns 11A and 11B. Further, when the suspension beam 30 is divided into the front and rear suspension beams 31 and 32, the suspension beams 31 and 32 are drilled on the outer side surfaces of the front and rear columns 11A and 11B (surfaces facing the outside of the scaffold unit 10). One thing may be sufficient. When the single suspension beam 30, 31, 32 is employed in the scaffold unit 10, these suspension beams 30, 31, 32 are attached to the pillars 11A, 11B using, for example, U bolts.

  In the scaffold unit 10, the means for stopping the suspension beams 30, 31, 32 on the pillars 11 </ b> A, 11 </ b> B at least in the axial direction is not limited to the wedge receiver in the wedge-tightened scaffold unit, but substantially the suspension beams 30, 31, Any material can be used as long as it can fix 32 to the pillars 11A and 11B at least in the axial direction.

  The present invention connects a plurality of front and rear columns, a horizontal member that connects the front and rear corresponding columns in pairs, a front connecting member that connects the front columns, and a rear column. In a method for assembling and disassembling a scaffold in which a plurality of scaffold units each having a rear connecting member and a step board supported at a predetermined height position of each pillar are stacked in the vertical direction, before and after the scaffold unit The scaffold unit is lifted or suspended via a suspension beam that is arranged so as to cross all of the pillars and is fixed to each pillar at least in the axial direction. According to the present invention, the scaffold unit can be safely, reliably, and easily suspended with a crane or the like.

DESCRIPTION OF SYMBOLS 10 Scaffolding unit 11A, 11B Pillar 12 Horizontal member 13A 13B Connecting material 14 Tread 15 Handrail 20 Detachable connecting part 21, 22 Wedge holder 23 Wedge body 30 Hanging beam 31 Front hanging beam 32 Rear hanging beam

Claims (3)

A plurality of front and rear columns, a horizontal member that connects the corresponding front and rear columns in pairs, a front connecting material that connects the front columns, and a rear connecting material that connects the rear columns And a method for assembling and disassembling a scaffold in which a plurality of scaffold units each having a footboard supported at a predetermined height position of each pillar are stacked in the vertical direction,
A step of lifting or lowering the scaffold unit via a suspension beam that is arranged so as to cross all the columns before and after the scaffold unit and is stopped at least in the axial direction on each column ;
The scaffold unit is configured such that each of the horizontal member, the front connecting member, and the rear connecting member is connected to the pillar via an attaching / detaching connecting portion, a wedge receiver provided on the pillar, and a wedge body provided on each member. A wedge-tightening type scaffolding unit that constitutes the detachable connecting portion by a combination;
A method for assembling and disassembling a scaffold, wherein the suspension beam is held against a lower portion of a wedge receiver of each pillar .   The method of assembling and disassembling a scaffold according to claim 1, wherein the suspension beam comprises a front suspension beam that is secured to all the pillars on the front side of the scaffold unit and a rear suspension beam that is secured to all the pillars on the rear side.   The scaffold unit integrally connects the front and rear corresponding columns so as to form a frame with a horizontal member, or the front columns are framed by the front coupling material, and the rear columns are framed by the rear coupling material, respectively. The method of assembling and disassembling a scaffold according to claim 1 or 2, wherein the scaffold is a frame-type scaffold unit that is integrally connected so as to form a frame.

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