JP2001226927A - Temporary guard fence and temporary guard-fence assembly construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of the assembly operation of a temporary guard fence, to solve the insufficient yards of the temporary guard fences on an execution field, and to prevent the damage of materials and to reduce transportation cost. SOLUTION: Foundation connecting members 9 are removed, other temporary guard fences 1 are hung up, only a desired number of the fences 1 are erected adjacently along the end section of a road, the fences are extended successively, continuous footings 4 are connected mutually by bolts 111 for joints and plates 112 for connection, anchor pins 121 are fixed to penetrate horizontal plates 6a and struck from upper sections and pierce the road, and the continuous footings 4 are fixed onto the road. Anchor pins 135 are inserted into the driving holes 133 of angles 131 and struck from upper sections to pierce the road and the continuous footings 4 are fixed to the road, the angles 131 and the continuous footings 4 are connected by bolts 134, support fixtures 501 are disposed to guard-rail mounting bolts 54, and blind net supports 502 can be housed in the internal spaces of the guard rail supports 51. Green blind nets (not shown) are mounted on the blind net supports 502.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary protection fence to be installed on a road or the like.

[0002]

2. Description of the Related Art Utility model registration No. 30 created by the present inventors.
In the invention shown in Japanese Patent No. 08876, the support 3 is detachably fitted to the long base 2, the guardrail 4 is detachably attached to the support 3, and the upper partition space 7 a of the base 2 is filled with concrete 11. Because they can be stacked in any direction, they save storage space and increase transport efficiency.

[0003]

However, the basics 2
Can be stacked, but the support 3 and the guardrail 4
There is a problem of taking up storage space. In particular, since construction is often performed in a narrow place on a road, it is required to secure a work space. In other words, since the materials are simply disassembled and collected separately for each material, labor for installation and storage is great. For example, the guardrail 4 must be placed in another place and transported one by one to assemble. Poor work efficiency. In particular, the location of the guardrail at the construction site is a problem. In addition, since it is for temporary use, the material moves rapidly and the pain is severe. That is, the temporary protection fence 1
Must be transported, assembled or disassembled frequently, which can damage the material, in particular the guardrail 4, during their work. If one truck cannot carry the temporary protection fence 1 of the specified weight, it must be carried many times, which increases the transportation cost. This is a problem, especially when it is a long distance to the construction site. In addition, temporary work of protective fences is often performed at night, and the work time is often limited by regulations of government agencies.
It is difficult to construct. That is, in the conventional one, the support 3 and the guardrail 4 must be transported and stored separately from the foundation 2, and the transportation efficiency and the assembly efficiency are still poor. Accordingly, it is an object of the present invention to improve the efficiency of assembling temporary protective fences, eliminate shortage of temporary protective fences at construction sites, prevent pain in materials, and reduce transportation costs.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the present inventor has focused on effectively utilizing the internal space of the foundation of a temporary guard fence for accommodating a guardrail. The invention comprises a temporary protection fence upper structure provided with a guardrail support and a guardrail, and an H-shaped section member, and the temporary protection fence upper structure is connected to the upper part thereof so as to be capable of falling down. A temporary protection fence comprising: a base; and an upper portion of the guardrail support is opened. Thereby, the above-mentioned problems can be solved.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary protection fence 1 according to an embodiment of the present invention will be described below with reference to FIGS. Temporary protective fence 1
Is an H-shaped section, and is a temporary long continuous foundation 4 (hereinafter, simply referred to as a continuous foundation 4) provided with a pivot member 2 (see FIG. 20) and a column fixing spacer 3 (see FIG. 4). When,
A temporary protection fence upper structure 5 that is pivotally mounted on the continuous foundation 4 by the pivot member 2 and can be fixed by the column fixing spacer 3. 1 and 2 show a completed assembly state, and FIGS. 10, 11 and 13 show a housed state. The temporary protection fence 1 is provided with a temporary protection, storage, transportation and the like.
The two states change from one to another. Hereinafter, each part will be described in detail.

As shown in FIGS. 5 and 20, the pivot member 2 has a first hole 20 and a pair of second holes 21 formed therein, and a predetermined distance D (FIG. 11) near a first vertical plate 6b described later. (See FIG. 3) and a fixing plate 22 which is provided upright in parallel with each other, and which is inserted through the first hole 20 and is provided with a guardrail support 51, a second vertical plate 6c and the fixing plate 22.
, In the short direction (perpendicular to the plane of the paper of FIG. 1), a nut 24 screwed to the long bolt 23, A pair of tubes 25 fixed to the lower part horizontally in the lateral direction and arranged so as to face the second hole 21 described above;
A pair of U bolts 26 (see FIG. 5) respectively inserted through
It is composed of a pair of nuts 27 screwed to the U bolt 26. The pivot members 2 are arranged at equal intervals on the continuous foundation 4 with an overall balance, but are not limited thereto. The length of the long bolt 23 is the guardrail support 51
And a margin is provided so that the guardrail support 51 can move in the short direction (the direction orthogonal to the long direction). The distance between the first vertical plate 6b and the fixed plate 22 is set to be equal to or larger than the width of the guard rail 52, and the guard rail 52 can be accommodated in the space between them. The mounting position of the long bolt 23 on the continuous foundation 4 is such that when the guardrail support 51 is lowered,
(Refer to FIG. 7). Further, in a state where the temporary protection fence upper structure 5 is folded down, both ends of the guardrail 52 slightly protrude from the accommodation space 7, and in a state where the temporary protection fence is upright, the guardrail 52 is displaced from the continuous foundation 4. This can be set appropriately.

[0007] Strut fixing spacer 3 shown in FIGS. 4 and 5
Is a vertical cross-section staircase, and a vertical plate 31
Are connected. The spacer 3 for fixing the support pillar has a pair of holes 32 and a pair of holes 33 formed therein. The U bolt 26 is inserted into the hole 32 and fixed with the nut 27, and the bolt 34 is inserted into the hole 33. Nut 35
It is to be fixed with. In addition, the mounting position, the number, the structure, and the like of the column fixing spacers 3 can be appropriately set. For example, the column fixing spacers 3 may be mounted not only on the front surface but also on the side surfaces.
Various implementations are possible, such as a structure in which the pillar fixing spacer 3 is fixed to the continuous foundation 4 with bolts 26 or the like.

As shown in FIGS. 2 and 3, the temporary protective fence upper structure 5 includes a guardrail support 51 and a guardrail 52.
And a bracket 53 and the like detachably attached to the guardrail support 51. That is, the guard rail mounting bolt 54 is horizontally inserted into the guard rail hole 52a and the bracket hole 53a (see FIG. 5), and the end of the guard rail mounting bolt 54 is connected to the nut 55.
It is fastened and fixed. Further, a bolt 56 is inserted through the hole 53 a of the bracket 53 and the pair of facing holes 59 of the guardrail column 51, and is detachably fixed by a nut 57. Thereby, the guardrail 5
2 is pivotally mounted on the guardrail support 51. That is, by loosening the bolt 56 and the nut 57,
Even if the guardrail support 51 pivots and falls, the guardrail 52 and the bracket 53 pivot while keeping the horizontal state, and can change the position in the vertical direction. The long bolt 23 penetrates through a pair of facing holes 58 (see FIG. 20) formed at the lower portion of the guardrail support 51, the holes 62 of the second vertical plate 6c, and the holes 20 (see FIG. 20) of the fixing plate 22. And can be fixed with a nut 24.

[0009] Further, as shown in FIG.
01 is provided on the guardrail mounting bolt 54 so that the blind net support 502 can be accommodated in the inner space of the guardrail support 51. A green blind net (not shown) is attached to the blind net support 502.

The continuous foundation 4 shown in FIG. 9 and FIG.
a, the first vertical plate 6b and the second vertical plate 6c are H-shaped steel members 6 which are welded or integrally formed to form an H-shape when viewed from the side and a horizontally-long rectangular shape when viewed from the front. A rectangular upper storage space 7a is formed in the upper region of the horizontal plate 6a and the upper half inner region of the first vertical plate 6b and the second vertical plate 6c, and the lower region of the horizontal plate 6a and the first A rectangular lower housing space 7b is formed in the lower half inner region of the vertical plate 6b and the second vertical plate 6c, and they have the same volume. In addition, continuous foundation 4
In order to prevent the load of the continuous foundation 4 from being directly applied to the guardrail 52 from above and below when the piles are piled up, the base connecting members 9 (see FIGS. 11 and 12) are provided and the continuous foundation 4 is vertically spaced. Therefore, this basic connecting member 9 is H
The support member also serves as the support member for the mold steel 6. As shown in FIG. 20, a hole 62 and a pair of holes 63 are formed in the second vertical plate 6c, so that the bolts 23 and the U bolts 26 can be penetrated and attached, respectively.

As shown in FIG. 11, when the temporary protective fences 1 are vertically stacked, the basic connecting member 9 is attached to the accommodation space 7 formed by the upper accommodation space 7a and the lower accommodation space 7b. The height (the vertical interval of the foundation) is adjusted so that the guardrail 52 is secured at a sufficient height and the load of the upper H-shaped steel member 6 is not applied to the guardrail 52. Temporary protective fences are provided at four locations. That is, FIG.
1 and 12 is a height adjusting member 92 made of a square plate and provided with a hole 91 (FIG. 12A).
Upper and lower connecting members 94 having holes 93a, 93b, which are formed of a square plate and connect the upper and lower H-shaped steel members 6 to each other.
(See FIG. 12 (b)), bolts / nuts 95 attached to the holes 91 and 93a and connecting the height adjusting member 92 and the vertical connecting member 94, and four positions corresponding to the holes 93a and 93b. The upper and lower connecting members 94 and the first vertical plate 6 are passed through holes 96 (see FIGS. 1 and 9) and holes 93b and 96, respectively.
b, bolts and nuts 97 for connecting the second vertical plate 6c. In addition, as a modified example, the lower part of the upper and lower connecting members 94 is welded to the upper part of the H-shaped steel material 6 in advance,
A structure in which the holes 93b and 96 are eliminated can also be adopted.

As shown in FIG. 2, a drain hole 10 is formed by perforating the horizontal plate 6a, and the upper housing space 7a and the lower housing space 7b communicate with each other so that rainwater can be discharged to the road. I have.

[0013] As shown in FIG.
9 is a continuous foundation 4 with the guardrail 52 removed.
This is applied when managing by stacking. The base connecting member 19 is provided with an upper and lower connecting member 192 formed of a square plate having a hole 191 formed therein. As shown in FIG. 13 (a), when the guard rail 52 is not attached to the guard rail support 51, the upper and lower connecting members 192 have the bolts and nuts 195 with the holes 191,
It is adapted to be attached to a hole 96 (see FIG. 1).

As shown in FIGS. 1 and 6, at the lower ends of the first vertical plate 6b and the second vertical plate 6c of the continuous foundation 4, four joint mounting holes 11 are formed at predetermined intervals. A bolt 111 is inserted in the lateral direction with a connecting plate 112 interposed therebetween, and is fixed by a nut 113. A hole (not shown) corresponding to the joint mounting hole 11 is formed in the connection plate 112.

As shown in FIGS. 7 (a) and 7 (b), two anchor driving holes 12 are drilled at two locations in the horizontal plate 6a of the continuous foundation 4, and an L-shaped anchor pin 121 is located upward. The continuous foundation 4 is fixed to the ground.

As shown in FIG. 1, the first vertical plate 6 of the continuous foundation 4
b, at two lower ends of the second vertical plate 6c, two angle mounting holes 13 are formed at predetermined intervals at four positions, and there are shown in FIG.
A bolt 134 (see FIG. 2) is passed through the mounting hole 132 of the angle 131 and the mounting hole 13 of the continuous foundation 4 shown in FIG. 2C and is fixed with a nut, and the anchor pin 135 is driven into the driving hole 133. By the angle 13
1 can be fixed to the ground. This is for protecting the pavement surface because the paving surface is easily damaged in summer when the temporary protection fence 1 has a large installation area.

As shown in FIG. 1B, the angle mounting hole 1
Between three, a plurality of (two) cutouts 14 for draining water are provided at the lower ends of the first vertical plate 6b and the second vertical plate 6c.

As shown in FIG. 1 (b), the first
At the upper ends of the vertical plate 6b and the second vertical plate 6c, a mounting hole 15 for a light with a solar cell is formed.

The accommodation state of the temporary protection fence 1 will be described with reference to FIG. (1) The U-bolt 26 and the nut 27 shown in FIG. 5 are released and removed, the spacer 3 for fixing the column is removed, and the guardrail column 51 is moved in the short direction (perpendicular to the longitudinal direction) with the guardrail 52 and the bracket 53 attached. Direction (see arrow in FIG. 20), the guardrail 52 is brought close to the continuous foundation 4, the bolts 56 and the nuts 57 are loosened, and the guardrail support 51 and the guardrail 52 are pivoted and lowered, as shown in FIG. The guardrail 52 is accommodated in the accommodation space of the continuous foundation 4. Then, the continuous foundation 4 is vertically stacked on another continuous foundation 4 similarly accommodated, and connected and supported by the foundation connecting member 9. Storage or transportation or the like is performed in the state shown in FIG. 11, whereby the storage space and transportation space can be significantly saved.

(2) Vehicle 20 with crane shown in FIG.
Crane 21 of cargo handling vehicle with temporary protection fence loading device such as 0
0 and the temporary protective fence 1 is loaded. Alternatively, they may be stacked and connected on the bed of the automobile 200 with a crane. In addition, 220 is a pile driver.

(3) In such a state, the temporary protection fence 1 is transported to the installation site. It is to be noted that, by way of example, FIGS.
As shown in FIG. 6, the weight of the temporary protective fence 1 is 1 ton for one block, 7 rows in 4 rows and 28 tons in total. The storage state in FIG. 13 is a case where the guardrail is a supplied product, and may be assembled from FIG.

A method of assembling the temporary protection fence using the temporary protection fence 1 of the present embodiment will be described. The temporary protection fence 1 is installed on the road as follows. (1) At the construction site, remove the foundation connecting member 9 and
0, the temporary protective fence 1 is lowered from the crane-equipped vehicle 200 to the temporary protective fence installation location (FIGS. 17 (a) and 18).
(A)).

(2) The guardrail support 51 is connected to the long bolt 23
Is pivoted on the fulcrum to bring it upright, and the guardrail 52 and the bracket 53 are pivoted about the bolt 56 and moved upward. The guardrail support 51 and the guardrail 52 are advanced in the lateral direction (see the arrow direction in FIG. 20). As shown in FIG. 5, the guard rail 52 is fixed to the guard rail support 52 by tightening the bolt 56 and the nut 57. Next, the column fixing spacer 3 is attached, the U bolt 26 is inserted through the hole 21, the pipe 25, and the hole 63, and the nut 27 is inserted.
And the bolt 34 is inserted into the hole 63 and fixed with the nut 35, thereby connecting the guardrail support 51 and the continuous foundation 4 in an orthogonal state (FIGS. 17 (b) and 18 (b)).
reference).

(3) The base connecting member 9 is detached, another temporary protective fence 1 is lifted, and a desired number of adjacent protective fences 1 are successively extended along the end of the road.

(4) The continuous foundations 4 are connected to each other by the joint bolt 111 and the connection plate 112 (see FIG. 6).

(5) The anchor pin 121 is passed through the horizontal plate 6a and hit from above to stab the road, thereby fixing the continuous foundation 4 to the road (see FIG. 7A).

(6) Insert the anchor pin 135 into the angle 131
8 (see FIG. 8 (c)) and stab from the top to pierce the road to fix the continuous foundation 4 to the road.
The angle 131 and the continuous foundation 4 are connected by 34 (see FIG. 2).

(7) The blind net support 502 and the support fixture 501 are inserted into the guard rail support 51 and fixed (see FIG. 21), and a blind net (not shown) is stretched on the blind net support 502. With the above, the installation work is completed.

The temporary protective fence 1 can be dismantled by performing the reverse procedure. After demolition work, the temporary protection fence 1
Is loaded into a car, transported to a storage place, lowered and stored as it is, or moved to another temporary place, and the temporary work is performed again.

As described above, according to this embodiment, the continuous foundation 4 and the temporary protective fence upper structure 5 are stored, transported,
Through assembly and disassembly, they can always be placed close together, preventing material from being scattered here and there. That is, during storage or transportation, the temporary protection fence upper structure 5 can be accommodated in the space of the continuous foundation 4, and the number of storage locations for the temporary protection fence upper structure 5 can be reduced. Further, there is no need to distribute the continuous foundation 4 and the temporary protective fence upper structure 5 everywhere, so that the on-site assembling / disassembling work becomes very easy, and the number of assembling / disassembling steps can be significantly reduced. Further, in the assembly of the temporary protection fence 1 at the site, since the material can be directly placed at the installation place, the storage place is almost unnecessary. Since the guardrail 52 can be accommodated inside the continuous foundation 4, the moving distance of the guardrail 52 is significantly reduced, the labor for transportation is reduced, and no damage is caused. Therefore, the mounting operation is very simple, the efficiency of the assembling work of the temporary protection fence 1 is improved, the shortage of the temporary protection fence 1 at the construction site is eliminated, the material is prevented from being damaged, and the transportation cost is reduced. be able to. Further, since the temporary protective fence 1 can be loaded to the full capacity of the truck, the freight cost is reduced by reducing the number of times of transportation.
Furthermore, since the continuous foundation 4 is used, there is no possibility that objects are scattered on the road from the construction site, and the safety is excellent.

Although the present embodiment has been described above, it is obvious that various embodiments in which the present invention is appropriately changed or added can be implemented without departing from the spirit of the present invention. The guardrail support 51 and the guardrail 52 are both moved in the short direction. However, as another example, the guardrail support 51 is fixed to the continuous foundation 4 so as not to move in the short direction, and a spacer (not shown). ) Can be attached to and detached from the bolt 56, and the gap between the bracket 53 and the guard rail support 51 or a spacer (not shown) can be attached to and detached from the bolt 54 so that the gap between the bracket 53 and the guard rail 52 can be appropriately adjusted. A structure that achieves a similar function, such as making it possible to move only in the short direction, may be used. Furthermore, although both the guardrail support 51 and the guardrail 52 are moved in the short direction, the guardrail support 51 and the guardrail 52 may be simply pivoted without this.

[0032]

According to the first aspect of the present invention, the internal space of the temporary long continuous foundation can be effectively used as a storage space for a guardrail upper structure such as a guardrail, and the temporary protection fence can be installed. A structure can be provided which can significantly improve efficiency, transportation cost, and installation space on site.

[Brief description of the drawings]

FIG. 1A is a plan view of a temporary protection fence of this embodiment in a temporary state (assembly completed state), and FIG. 1B is a front view thereof.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

3A is an enlarged front view of the same, and FIG. 3B is an enlarged front view of a guardrail.

FIG. 4 is a perspective view of a temporary protection fence of the present embodiment.

FIG. 5 is an exploded perspective view of the same.

FIG. 6 is a sectional view taken along the line IV-IV in FIG. 1 (b).

7A is a sectional view taken along the line VII-VII of FIG. 1B, and FIG. 7B is a front view of the anchor pin.

8A is a front view of the angle, FIG. 8B is a right side view of the same, FIG. 8C is a sectional view of the same, and FIG. 8D is a front view of the anchor pin.

FIG. 9A is a plan view of a temporary long continuous foundation for temporary protection fences of the present embodiment, and FIG. 9B is a front view of the same.

10A is a side view showing a state where the temporary protection fence is housed, and FIG. 10B is a plan view thereof.

FIG. 11 is a partially enlarged side view showing a state where the temporary protection fence of this embodiment is housed.

12A is a front view of a height adjusting member, and FIG. 12B is a front view of an upper and lower connecting member.

FIG. 13A is a side view of a temporary long continuous foundation in another housed state, and FIG. 13B is a front view of an upper and lower connecting member.

FIG. 14 is a front view showing a state where the temporary protection fence of this embodiment is housed.

FIG. 15 is a side view of the same.

FIG. 16 is a plan view of the same.

17A is a construction view showing a state where a temporary protection fence is moved from a vehicle with a crane to a construction site, and FIG. 17B is a construction view showing a state where the temporary protection fence is assembled.

FIG. 18A is a front view showing the temporary protective fence upper structure before assembly, and FIG. 18B is a side view showing the temporary protective fence upper structure after assembly.

FIG. 19 is a perspective view showing a state in which the temporary protection fence upper structure is folded down.

FIG. 20 is an enlarged perspective view showing a state in which the temporary protection fence upper structure is folded down.

FIG. 21 is a perspective view of the vicinity of a support fixture.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Temporary protective fence, 2 ... Pivot member, 20 ... 1st hole, 21 ... 2nd hole, 22 ... Fixing plate, 23 ...
・ Long bolt, 24 ・ ・ ・ Nut, 25 ・ ・ ・ Tube, 26 ・
..U bolts, 27 nuts, 3 columns for fixing columns, 4 ... long continuous foundations for temporary construction, 5 ... superstructures for temporary protection fences, 51 ... guard rail columns, 52
..Guardrails, 53 ... brackets, 54 ...
Guardrail mounting bolt, 55 ... nut, 56 ...
-Bolt, 57-Nut 6-H-shaped steel, 6a-Horizontal plate, 6b-First vertical plate, 6c-Second vertical plate, 7a-Upper storage space, 7
b: Lower accommodation space, 8: Upper surface, 9: Basic connecting member

Claims (1)

[Claims] 1. A temporary temporary fence upper structure including a guardrail support and a guardrail, and a temporary long fence comprising an H-shaped section member, the temporary protective fence upper structure being connected to the upper part thereof so as to be capable of falling. A temporary protection fence comprising: a continuous foundation; and an upper portion of the guardrail support is opened.