JP2001200632A - Construction method for temporary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a temporary structure capable of arranging a safety handrail frame prior to upper surrounding of a scaffold board and ensuring safety of assembly work on the scaffold board which is carried out at an elevated level. SOLUTION: In this temporary structure assembled by joining support columns 3 on which a flange with hole is fixed sequentially, connecting adjacent support columns 3 at a predetermined interval, and constructing the scaffold board, the support columns 3 are joined on the scaffold board at a lower story and the preceding handrail frame 7 is attached between joined support columns 3 prior to the construction of the scaffold board at an upper story, and the support columns 3 and the preceding handrail frame 7 are already positioned in upper surrounding of the scaffold board at the upper story when the works for joining the support columns 3 on the scaffold board at the upper story and mounting the preceding handrail frame 7 are done so as to safely perform assembly of the temporary structure on the scaffold boards at an elevated level.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a temporary structure that can be used for various purposes such as a temporary scaffold for construction work, a rolling tower, and an indoor scaffold.

[0002]

2. Description of the Related Art Conventionally, a temporary framed scaffold used for construction work of various buildings, civil engineering works, etc. is a gate-shaped or torii-shaped frame, a crossed brace and a scaffold plate, which are opposed to each other. Have a desired height and planar length by connecting the crossing braces and constructing a scaffold plate on the upper part of the opposing building frame, extending the building frame upward and adding it horizontally. Build a scaffold.

[0003]

By the way, in the above-described conventional method of constructing a frame scaffold, when performing an upward addition work on a scaffold plate erected between upper portions of opposing building frames,
There is nothing around the upper part of the scaffolding board, and as a result, safety measures cannot be taken for assembling work on the scaffolding board, which is a work at height, and there is a risk that an accident such as a crash may occur. There is. Therefore, an object of the present invention is to provide a temporary structure that can arrange a safety handrail frame in advance around the upper part of a scaffold plate and can ensure the safety of the assembling work on the scaffold plate, which is a work at a high place. It is to provide a construction method.

[0004]

In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a support having fixed flanges with holes at predetermined intervals in the vertical axis direction and capable of successively adding. At a predetermined interval, two adjacent columns are connected at a predetermined interval by coupling with a locking bracket that is slidably engaged with the column on the upper side and a handrail frame with a coupling bracket to the flange on the lower side. Using a connecting member for connection and a scaffold plate erected between the opposing connecting members, a pair of two columns connected by the connecting member are arranged in opposition, and a scaffold plate erected between the opposing connecting members. Above, first, the upper strut extension work is performed on the upper end of each of the above-mentioned struts, and then the handrail frame is faced between the extension struts opposed to both sides, and the locking metal fittings on both upper sides are respectively attached to the extension struts on both sides. In the engaged state, add Slide the handrail frame upward using the pillar as a guide, and at the pushed-up position, add the upper and lower joint fittings to the upper part of the support column and join it to the flange of the support column to perform the work of attaching the handrail frame, and build the scaffold plate on the upper additional support column A configuration is adopted in which a handrail frame is attached between the supporting pillars by adding the upper part in advance.

According to a second aspect of the present invention, there is provided a support having fixed flanges with holes at predetermined intervals in the vertical axis direction, which can be successively extended, a metal fitting to the flange on both upper sides and a flange on both lower ends. Bracing handrail frame, which has the function of changing the vertical height according to the change of the crossing angle of the diagonal material, and the two adjacent columns are connected at a predetermined interval by connecting with the flange Using a connecting member for, and a scaffold plate erected between the opposing connecting members, a pair of two columns connected by the connecting member are arranged in an opposing manner, and on a scaffold plate erected between the opposing connecting members. First, the upper strut is added to the upper end of each of the above-mentioned struts, and then the bracing handrail frame is made to face between the extending struts opposed to both sides. Connect the metal fittings on both sides Engage with the upper flange of the supporting column, and then, with the brace rail frame in a contracted state, connect the lower and both ends of the connecting brackets to the upper connecting column and connect it to the middle flange of the supporting column to perform the mounting work of the brace rail frame. Prior to erection of the scaffolding plate on the extension column, a configuration is adopted in which the upper hand extension frame is attached with a brace railing frame between the upper extension columns.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 11 show an assembled state of a temporary scaffold using a preceding handrail frame and constituent members used for the temporary scaffold. The basic constituent members of this temporary scaffold are shown in FIG. A jack base 1, a lower support 2 standing on the jack base 1, a support 3 connected to the lower support 2 and extending upward, and an intermediate support 4 sequentially extending the required length. As shown in FIGS. 5 to 7, a brace member 5 for connecting adjacent columns 2 to each other
, A scaffold plate 6 laid between the brace members 5, a preceding handrail frame 7 attached between the opposing columns 2, and a horizontal member 8 for connecting the opposing lower columns 2, the intermediate columns 4, and the like to each other.
Etc. are prepared.

First, the lower support 2 and the intermediate support 4 are formed using a short steel pipe having a predetermined diameter, and a small-diameter joint pipe 9 for connecting the support 3 is provided at the upper end. The holed flange 10 is fixed to
The intermediate support 4 is slightly longer than the lower support 2, and the flanges 10 are fixed at three upper and lower positions.

The column 3 is formed by using a steel pipe having a predetermined diameter. A small-diameter joint pipe 9 for connection is provided at an upper end, and a flange 10 with a hole is fixed at a position between an intermediate portion and an upper end. The connection between the joint pipe 9 and the lower support 2, the support 3 and the intermediate support 4 is made by connecting the fitting portions with a pin or by a known locking mechanism provided on the joint pipe 9. . Incidentally, the height of the support 3 is 1800 mm.

Next, FIG. 5A shows a first example of a brace member 5 for connecting the two columns 3 to each other, and fittings 11 to the flanges 10 of the columns 3 are attached to both ends. A horizontal pipe 12 made of a steel pipe for connecting the columns 3 erected on both sides, an upper end is fixed to the middle lower portion of the horizontal pipe 12 by welding, and an external fitting 13 for the column 3 is provided at a lower end. Diagonal material 1 provided between 12 and the support 3
4 and a vertical member 15 for fixing an end of the horizontal pipe 12 and a lower portion of the diagonal member 14.

FIG. 5 (B) shows a second example of the brace member 5, in which fittings 11 to the flanges 10 of the columns 3 are attached to both ends, and made of a steel pipe for connecting the columns 3 erected on both sides. A horizontal pipe 16 and two diagonal members 18 each having an upper end pivoted by a pin 17 in the middle of the horizontal pipe 16 and capable of being arranged in a C-shaped lower spread, the lower end of the diagonal member 18. , A fitting 11 for the lower flange 10 of the column 3 is attached.

The brace member 5 of the second example is configured such that when the connecting columns 3 on both sides are connected by the horizontal pipe 16, the connecting members 11 are fastened to the flange 10 located above the supporting columns 3. The condition is such that the coupling fitting 11 can be coupled to the intermediate flange 10, and when not in use, the horizontal pipe 16 can be folded low so that the diagonal member 18 follows the horizontal pipe 16.

In any of the examples, the brace member 5 has a connection interval between the columns 3 of 1800 mm and 120 mm, for example.
Three types, 0 mm and 900 mm, are prepared and can be selected according to the conditions for assembling the temporary scaffold.

The above-mentioned scaffold plate 6 is, as shown in FIG.
It has a well-known structure in which a pair of hooks 19 are provided at both ends,
It is to be installed between the horizontal pipes 12 and 16 of the brace member 5. This scaffold plate can be installed between the horizontal pipes 16 at an interval of 1800 mm, and the width is 1800 mm, 1200 m by a combination of a plurality of types.
Three types with different widths are prepared so as to correspond to three types of m and 900 mm.

FIG. 6 shows the preceding handrail frame 7, which is formed by bending a pipe downward in a U-shape and engaging the support column 3 at positions on both upper sides of a frame body 20 provided with a horizontal middle rail 20a in the middle. Locking metal fittings 21 and 22 detachable and vertically slidably engaged
Is fixed, and the lower ends of the frame 20 are connected to each other with a skirting board or a pipe 23.
It has a structure in which a connection fitting 11 for 0 is attached.

The leading handrail frame 7 is provided with the width of the frame body 20 and the locking fitting 2 so as to connect the columns at intervals of 1800 mm.
The mounting relationship between 1, 22, and the fitting 11 is set,
The height of the frame 20 is substantially equal to the distance between the intermediate flange 10 and the upper flange 10 of the column 3.

The joints 21 and 22 provided on both sides of the upper part of the frame 20 have different structures on the left and right.
As shown in FIGS. 6 (B) and 6 (C), a metal wire is used, and has a flat circular shape externally fitted to the column 3, and both ends of the inclined portion are vertically inclined when viewed from the front. The frame 20 is bent so as to be open at an interval so as to pass through the pipe for forming the frame 20, and is fixed to the end of an arm 24 projecting horizontally from the outer surface of the frame 20.

The other fitting 22 is shown in FIG.
As shown in (D) and (E), the support 3
And is fixed to the tip of an arm piece 25 projecting horizontally from the outer surface of the frame body 20.

In order to attach the upper part of the preceding handrail frame 7 to the opposing column 3, as shown in FIG. 8 (C), the preceding handrail frame 7 is moved so that one of the fittings 21 is horizontal. Opposite support column 3 holding the fitting 21 in a downwardly inclined shape.
In this position, first, one connecting fitting 21 is externally fitted to one of the columns 3 in this posture, and then, if the preceding handrail frame 7 is made horizontal, the other connecting metal 22 is detached from the other supporting column 3. As a result, as shown in FIG. 9A, it is possible to mount the leading handrail frame 7 between the columns 3 on the upper side, and the two fittings 21 and 22 are fitted to the columns 3 respectively. Therefore, the preceding handrail frame 7 can be slid up and down along the column 3.

FIG. 5C shows a horizontal member 8 for connecting the opposing lower support 2, intermediate support 4 and the like to each other. A connecting fitting 11 for a flange 10 is provided at both ends of a steel pipe having a predetermined length. Like the preceding handrail frame 7, there are prepared a structure in which the lower support 2 and the intermediate support 4 are connected at an interval of 1800 mm, and a structure in which the lower support 2 and the intermediate support 4 are connected at an interval of 1200 mm and 900 mm.

FIGS. 11 (A) to 11 (D) show the specific structure of the fitting 11 fixed to the lower support 2, the intermediate support 4, and the flange 10 of the support 3. FIG.

The joining fitting 11 includes a holder member 31 which is fixed horizontally to both lower sides of the preceding handrail frame 7, both ends of the horizontal member 8, and an end of the brace member 5, respectively;
The holder member 31 includes a combination of a flange 10 and a wedge member 32 for fastening the holder member 31 within the holder member 31. The holder member 31 is formed by bending and coupling a side wall that is bent rearward on both sides of a vertically elongated front wall 33. The rear ends of both side walls facing the ends of the horizontal pipe, the diagonal member, and the like are welded, and the upper and lower surfaces between the both side walls are openings 34 for inserting the wedge member 32.

The length of the holder member 31 in the front-rear direction is formed to be longer than the radial length of the portion of the flange 10 where the coupling hole 35 is provided.
A notch 36 is provided along the horizontal direction from the distal end portion so as to be fitted externally with respect to the thickness of the flange 10, and the notch 36 is formed so that the distal end wall 33 can be brought into contact with the outer periphery of the column 3. The depth is set. Notch 3 above
If the outer member 6 is inserted into the flange 10, the rotation of the holder member 31 and the horizontal pipe, diagonal member, and the like will be prevented.

The wedge member 32 includes a wedge portion 37 inserted from above into the coupling hole 35 of the flange 10, a horizontal portion 38 provided in the middle of the wedge portion 37, and a right angle from the tip of the horizontal portion 38. The wedge 37 has a narrow width toward the lower end, and the wedge 37 has a narrow width toward the lower end. The front edge which comes into contact with the inner surface of the front wall 33 is vertical, and the rear edge which comes into contact with the end of the coupling hole 35 is an inclined edge. The wedge portion 37 may have a straight shape other than the lower narrow shape as shown.

Pins 40 and 41 for retaining are fixed to the upper end of the wedge portion 37 and the lower end of the rod-shaped portion 39, and the wedge portion 37 of the wedge member 32 inserted into the holder member 31 is connected to the hole 3 for connection.
5, the upper end of the wedge portion 37 projects from the upper surface of the holder member 31, and the lower end of the rod portion 39 projects downward from the lower surface of the holder member 31.

A locking step 42 is provided on the inner edge of the rod 39, and the locking step 42 is
1 and the lower horizontal rail 43, as shown in FIG.
The wedge portion 37 of the wedge member 32 can be held at a position where it does not interfere with the flange 10, and the notch 36 of the holder member 31 can be inserted into the flange 10 regardless of the wedge member 32.

When the holder member 31 is inserted into the flange 10, the inner edge of the rod-shaped portion 39 comes into contact with the flange 10, so that the locking step portion 42 comes off from the lower horizontal rail 43, and the wedge member 32 has its own weight. After dropping, the wedge portion 37 falls into the coupling hole 35, and as shown in FIG. 11C, the wedge portion 37 fixes the flange 10 and the holder member 31 in a state in which the front wall 33 is pressed against the column 3 or the like. Will do.

Next, a method of constructing a scaffold using the preceding handrail frame will be described.

First, as shown in FIGS. 8 (A) and 8 (B), jack bases 1 are arranged at four positions on the floor surface, and a lower support 2 is connected on the jack base 1, and four lower supports are provided. 2 are connected to each other in a frame shape by a horizontal member 8 by fastening a connection fitting 11 to a flange 10.
9C, the intermediate flanges 10 of the adjacent columns 3 are joined by a horizontal pipe 12 of the brace member 5 on one pair of two opposing surfaces of the columns 3 standing upright.

Further, the leading handrail frame 7 faces between the two pillars 3 which are located on the opposite side to the building and are opposed to each other.
As shown in (C), one of the joints 21 is horizontal.
The leading handrail frame 7 is held in an inclined shape in which the one connecting metal fitting 21 is lowered. First, in this posture, one connecting metal fitting 21 is fitted onto one of the columns 3, and then the preceding handrail frame 7 is horizontally moved. In this case, the other connecting metal fitting 22 is externally fitted to the other column 3, and the two connecting metal fittings 21, 22 are externally fitted to the column 3, respectively, as shown in FIG. The handrail frame 7 can be slid up and down along the column 3, and the
The position of the joints 11 provided at both lower ends of the support column 3 with respect to the intermediate flange 10 can be easily adjusted, and if the joints 11 are fastened to the intermediate flange 10,
The preceding handrail frame 7 can be attached between the columns 3, and thereafter, the scaffold plate 6 is erected between the horizontal pipes 12 of the brace members 5.

The construction of the scaffold is carried out on the scaffold plate 6,
At the upper end of each support 3, the intermediate flange 10 is attached to the brace member 5 at two sides of the support 3 at the two ends of the support 3.
And the mounting of the preceding handrail frame 7 between the opposing columns 3 is sequentially repeated upward.

At this time, the columns 3 stand upright at the four corners above the scaffold plate 6, and the preceding handrail frame 7 is located above the scaffold plate 6 between the opposing columns 3. Thereby, the replenishment work on the scaffold plate 6, which is a work at a high place, can be performed safely.

Also, the operation of erecting the column 3 and connecting it with the brace members 5, attaching the preceding handrail frame 7 between the columns 3, and erection of the scaffold plate 6 between the brace members 5 are described below. By repeating in the direction, the scaffold can be assembled as shown in FIGS.

Next, FIGS. 12 to 15 show the assembled state and constituent members of a temporary scaffold using the brace railing frame 51. The basic constituent members of this temporary scaffold are the above-described preceding handrail frame. In the case of a temporary scaffold using the handrail 7, the same is true except that a bracing handrail frame 51 is used instead of the preceding handrail frame 7.

As shown in FIG. 14, the brace railing frame 51 is composed of a combination of a horizontal pipe 52 and two diagonal members 53.
Wedge-shaped insertion piece 5 to be inserted into the coupling hole 35
4 and the diagonal member mounting piece 55 is fixed downward with an interval provided at a position closer to the inside than the insertion piece 54, and each of the diagonal member 53 is fixed to a lock member 57 pivotally secured to the diagonal member mounting piece 55 by a pin 56. The upper ends are fixed, and the fittings 11 to the flanges 10 are attached to the lower ends of the two oblique members 53, and the two oblique members 5
An annular body 5 using a string, a track, a wire, etc. at the intersection of 3
8 is held.

Therefore, if the lower end of the two diagonal members 53 is gripped and operated so that the intersection angle of the two diagonal members 53 changes, the vertical position of the horizontal pipe 52 changes, and the annular pipe 52 which fits loosely at the intersection part. By moving the body 58, the intersection angle between the two oblique members 53 can be changed.

The lock member 54 and the diagonal member 53 rotate integrally, as shown in FIG. 14 (C), grip the lower ends of the diagonal members 53 and form an angle such that the diagonal members 53 intersect at the lower ends. Then, the locking member 57 rotates to a position away from the insertion piece 54 to enable the insertion piece 54 to be inserted into the hole 35 of the flange 10 and, as shown in FIG. The locking member 57 moves closer to the insertion piece 54 and engages with the lower surface of the flange 10 in a state where the insertion piece 54 is inserted into the hole 35 of the flange 10. This locks the insertion piece 54 so that it does not come out of the hole 35 of the flange 10.

The interval at which the struts 3 of the bracing handrail frame 51 are joined is set to 1800 mm, similarly to the preceding handrail frame 7, and the horizontal pipe 52 is installed on the upper flange 10 of the strut 3. The lower end fitting 11 can be connected to the intermediate flange 10.

The method of constructing a scaffold using the brace railing frame 51 is similar to that of the scaffold using the preceding handrail frame 7 in that the brace railing frame 51 is used instead of the preceding handrail frame 7. After the support columns 3 are added, the handrail frame 51 is provided between the added support columns 3.
15A, first, as shown in FIG. 15 (A), if the lower ends of the two oblique members 53 are brought close to each other to move the intersection of the two oblique members 53 downward, the horizontal pipe 52 is in a raised state in which it rises. Then, the insertion pieces 54 at both ends of the raised horizontal pipe 52 are inserted into the holes 35 of the upper flange 10 of the support 3, and the horizontal pipe 52 is erected between the upper flanges 10 of the support 3, and then, as shown in FIG. As described above, one of the diagonal members 53 is rotated upward, and the coupling metal 11 provided at the lower end thereof is coupled to the intermediate flange 10 of the column 3, and thereafter, the other diagonal member 53 is rotated upward and If the connecting metal 11 provided at the lower end is connected to the intermediate flange 10 of the column 3, as shown in FIG. 15C, the bracing handrail frame 51 can be attached between the columns 3 prior to the installation of the scaffold plate 6. I can do it.

As described above, even if the upper flange 10 of the column 3 is located at a position where the hand of the operator cannot reach, the lower ends of the both slant members 53 are grasped by making the bracing handrail frame 51 vertically long. A horizontal pipe 52 can be erected between the upper flanges 10 in this state, and a brace railing frame 51 is attached before the erection of the scaffolding plate 6, so that a support pillar 3 and brace rail frame 5
1 is located, and safety of the replenishment work can be ensured.

In any of the scaffolds described above, the dismantling operation is carried out on the upper-floor scaffold plate 6 such that the support 3 and the preceding handrail frame 7 or the bracing handrail frame 51 remain on the upper part of the working scaffold plate 6. The removal, the removal of the brace member 5, the removal of the preceding handrail frame 7 or the brace handrail frame 51, and the removal of the column 3 may be shifted downward.

FIGS. 16 to 21 show some examples of the temporary structure which can be constructed by basically using the above-mentioned respective constituent materials of the temporary scaffold and combining and using other members. Is shown.

FIG. 16 shows a rolling tower, in which a lower column 2 and a column 3 are successively added on wheels 61,
Two adjacent lower struts 2 are joined by a horizontal member or a brace member, and the joined two struts 3 are arranged so as to face each other at a predetermined interval, and a leading handrail frame 7 is provided between the opposed struts 3. At the same time, a scaffold is provided between the horizontal members and the brace members of the opposing columns 3, and a stair 62 is provided between the upper and lower scaffolds.

As shown in the drawing, when the adjacent scaffolding plate and the preceding handrail frame 7 are arranged so as to have a step, the distance between the upper and lower scaffolding plates becomes shorter, and the stairs 62 can be shortened.

FIG. 17 shows a shoring method, in which columns formed by adding a lower support 2 on a jack base 1 are sequentially connected with a horizontal member 8 to assemble into a frame shape, and a scaffold plate is erected on a necessary portion. At the same time, the structure is reinforced with a diagonal member 63 and a support member 65 such as a large pulley 64 is attached to the upper end of the pillar.

FIG. 18 shows an indoor scaffold, in which pillars formed by adding a lower support 2 on a jack base 1 are sequentially joined by horizontal members 8 to assemble them into a frame shape, and a scaffold plate is erected on the upper surface. It has a structure formed by.

FIG. 19 shows a safety passage, in which a column formed by adding a lower column 2 on a jack base 1 and a column 3 are used in combination, and the columns and the columns are joined by a horizontal member 8. , A scaffold plate 6 is erected between the horizontal members 8 and a handrail frame 7 is provided between the columns 3 and the columns 3 and between the columns 3.
And a required portion is reinforced with a diagonal member 63.

FIGS. 20 and 21 show a veranda bridge combined with a temporary scaffold. A pillar formed by adding a telescopic strut 66 and a lower strut 2 on a veranda of a building is erected, and these two struts are horizontally mounted. At the same time, the pillar and the support 3 of the temporary scaffold are connected by a horizontal member 8, and the horizontal member 8
A scaffold plate 6 is erected between the scaffold plates 6 and a stair 62 is extended between the scaffold plate 6 and the floor of the veranda.

As described above, each component of the temporary scaffold described above can be used for various purposes as a component of various temporary structures.

[0050]

As described above, according to the present invention, a temporary structure in which pillars with perforated flanges are successively added, adjacent pillars are connected at predetermined intervals, and a scaffold plate is erected to assemble the temporary structure. In the product, the extension of the support on the scaffold board on the lower floor and the installation of the leading handrail frame or the bracing handrail frame between the added supports were performed prior to the erection of the upper floor scaffold board, A safety handrail frame can be placed ahead of the top of the scaffold,
When performing the work of adding a support on the upper floor scaffolding plate or installing the leading handrail frame or bracing handrail frame, the support pillar and the preceding handrail frame or bracing handrail frame are already located around the upper part of the upper floor scaffolding plate. Therefore, the safety of the assembling work on the scaffold plate, which is to be performed at a high place, can be secured by the support pillar and the preceding handrail frame or the bracing handrail frame, so that the temporary structure can be safely assembled. Become.

Further, a column, which is a constituent member of the temporary structure,
The leading handrail frame or the bracing handrail frame has versatility, and it is possible to construct various temporary structures by combining with existing members, and it is possible to construct various temporary structures by multipurpose use of the constituent members. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing an assembled state of a temporary scaffold using a preceding handrail frame.

FIG. 2 is a side view of the above.

FIG. 3 is a side view using the brace member of the second example in the above.

FIGS. 4A to 4C are front views showing different examples of columns, and FIG. 4D is a front view of a jack base;

FIG. 5A is a front view of the brace member of the first example,
(B) is a front view of the brace member of the second example, and (C) is a front view of a horizontal member.

6A is a front view of a preceding handrail frame, FIG. 6B is an enlarged plan view showing one of the fittings provided on the same, FIG. 6C is a front view of the same, FIG. 6D is another view provided on the same. An enlarged plan view showing a coupling fitting, and FIG.

FIGS. 7A to 7C are plan views of scaffolds having different widths.

FIGS. 8A to 8C are explanatory diagrams showing a process of constructing a temporary scaffold.

FIGS. 9A to 9C are explanatory diagrams showing a process of constructing a temporary scaffold.

FIGS. 10A and 10B are explanatory diagrams showing a process of constructing a temporary scaffold.

11A is a longitudinal sectional front view of a coupling fitting, FIG. 11B is a longitudinal sectional front view showing a state in the middle of coupling to the flange, FIG. 11C is a longitudinal sectional front view showing the coupling state, and FIG. Top view of the connected state

FIG. 12 is a front view showing an assembled state of a temporary scaffold using a brace railing frame;

FIG. 13 is a side view of the above.

14A is a front view of a brace railing frame, FIG. 14B is an enlarged front view showing an opening posture of a lock member in the same, FIG.
(C) is an enlarged front view showing the engagement posture of the lock member in the above.

FIGS. 15A to 15C are front views showing changes in the posture of a brace railing frame;

FIG. 16 is a front view showing a rolling tower assembled as a temporary structure.

FIG. 17 is a front view showing the shoring assembled as a temporary structure.

FIG. 18 is a front view showing an indoor scaffold assembled as a temporary structure.

19A is a front view showing a safety passage assembled as a temporary structure, and FIG. 19B is a side view of the same.

FIG. 20A is a front view showing a veranda bridge assembled as a temporary structure.

FIG. 21 is a side view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jack base 2 Lower support 3 Support 4 Intermediate support 5 Brace member 6 Scaffolding board 7 Prior handrail frame 8 Horizontal material 51 Brace handrail frame

Claims (2)

[Claims] 1. A strut having fixed flanges with holes at predetermined intervals in the vertical axis direction and capable of successively extending, a locking metal fitting on both upper sides so as to be vertically slidable with the pillar, and a flange on both lower sides. Using a handrail frame with a connecting bracket attached to it, a connecting member for connecting two adjacent columns at a predetermined interval by connecting with a flange, and a scaffold plate spanning between the opposing connecting members. A pair of two columns joined by a coupling member are arranged in opposition, and on a scaffold plate erected between the opposed coupling members, first, a work of adding a higher-order column to the upper end of each column is performed, and then With the handrail frame facing between the extension pillars facing the both sides, the upper and lower latches are engaged with the extension pillars on both sides, respectively. Lower at push-up position Attach the handrail frame by connecting the joining brackets on both sides to the upper part of the support flange, and then attach the handrail frame.
A method of constructing a temporary structure, characterized in that a handrail frame is attached between the upper reinforced pillars prior to erection of the scaffold plate on the upper reinforced pillars. 2. A flange having holes fixed thereto at predetermined intervals in the vertical axis direction, and a pillar which can be successively extended, a metal fitting to the flange on both upper sides, and a metal fitting to the flange on both lower sides. Brace railing frame with the function of changing the height dimension up and down by changing the intersection angle of the diagonal,
Using a joining member for joining two adjacent columns at a predetermined interval by coupling with a flange, and a scaffold plate erected between the opposed joining members, a pair of two columns joined by the joining member is used. On a scaffolding plate arranged in an opposed manner and erected between the joining members opposed to each other, first, an upper strut is added to the upper end of each of the above-mentioned struts, and then, a bracing handrail frame is provided between the extending struts opposed to both sides. With the brace railing frame extended vertically, the upper and lower locking brackets are engaged with the upper flanges of both extension pillars, respectively, and then the brace railing frame is contracted and the lower part is lowered. Attach the bracing handrail frame between the upper reinforced pillars before installing the scaffold plate on the upper reinforced pillar by attaching the connecting metal fittings on both ends to the upper flange of the upper joint and connecting to the middle flange of the column. Method for constructing a temporary structure, characterized in that.