JPH0813788A - Temporary structural body - Google Patents

Abstract

PURPOSE:To simply make a connection structure for posts, and enhance operating performance for construction and disassembly of the structure with respect to a temporary structural body constructed at a work site for building construction and civil engineering. CONSTITUTION:Each connection fitting 8 having pin insertion holes 7 for making horizontal connection is provided for the upper and lower ends of each post 2, and meanwhile, a connection fitting 19 is provided, which has an upper and a lower pin insertion hole 18 and 18 in response to a pin insertion hole 7 at the lower side post 2 and a pin insertion hole 7 at the upper side post 2. The respective posts 2 and 2 are made to act as a retainer by making horizontal connection 3, concurrently since one horizontal connection 3 allows the upper and lower posts 2 (four posts in total) to be connected therewith at its right and left end sections, structural strength can thereby be increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary structure constructed at a civil engineering / construction site such as a support structure for temporary support of a bridge.

[0002]

2. Description of the Related Art In a conventional structure constructed in civil engineering / construction sites, for example, a temporary support structure for bridges, columns which are erected at a plurality of points (for example, apexes of a rectangle). When connecting vertically, for example, the lower end of the upper strut is inserted into the joint protruding from the upper end of the lower strut, and the pin is inserted between the upper strut and the joint, or the joint is connected to the lower strut. A structure is adopted in which the pin is inserted over both the upper column and the joint, the pin is inserted over the lower column and the joint, and the pin is inserted over the upper column and the joint.

At the upper and lower ends of each pillar, a horizontal joint for connecting at the same height as an adjacent pillar and a brace for connecting diagonally are connected. At the connection point, a connection fitting having two upper and lower pin insertion holes is provided,
At both ends of the horizontal joint and at both ends of the brace, connecting fittings each having one pin insertion hole are provided.

[0004]

The columns of the conventional temporary structure are provided with connecting fittings each having only a lower end portion or upper and lower end portions having a pin hole for vertical connection and two pin insertion holes. Therefore, the configuration is complicated.

Further, when the temporary structure is extended upward, it is necessary to align the pin insertion hole of the joint with the pin insertion hole of the support pillar. However, the support pin is inserted with the pin insertion hole of the joint hidden by the support pillar. Since it is necessary to perform alignment while rotating, there is a problem that it is disadvantageous in improving workability of construction work.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a temporary structure which can simplify the structure for connecting the pillars and can improve the workability of construction and disassembly. It is what

[0007]

The temporary structure of the present invention comprises:
In a temporary structure provided with a plurality of columns and a horizontal connection and a brace that connects a plurality of columns arranged side by side, in order to achieve the above object, a pin insertion hole for horizontal connection connection is provided at the upper end and the lower end of the column. A connecting metal fitting is provided, and two upper and lower pin insertion holes corresponding to the pin insertion hole of the lower support pillar and the pin insertion hole of the upper support pillar, which are vertically connected to both ends of each horizontal joint, are provided. It is characterized in that a connecting metal fitting is provided.

[0008]

According to the above construction, as shown in FIG. 1, the pillars 2 are vertically connected to each other (in FIG. 1, a base jack 1 installed on the ground is shown instead of the lower pillar).
Is, for example, the lower end of the upper strut 2 is inserted into a joint 17 protruding from the upper end of the lower strut 2 (base jack 1), and the lower pin insertion hole 18 and the lower side of the connecting fitting 19 of the horizontal joint 3 are connected to each other. The lock pin 9 is inserted into the upper pin insertion hole 7 of the connecting fitting 8 provided at the upper end of the support pillar (base jack 1) of FIG. 1, and the upper pin insertion hole 18 of the connecting fitting 19 of the horizontal joint 3 and the upper support pillar 2 are connected. The lock pins 9 are inserted into the pin insertion holes 7 on the lower side of the connecting fittings 8 provided at the lower ends of the lock fittings 9 to be connected to each other.

Therefore, between the upper and lower struts 2 (or the struts 2 and the base jack 1) which have been conventionally required.
(Between) It is possible to omit the pin holes and the pins that are inserted in the radial direction to prevent mutual removal.

Further, according to the above construction, since one horizontal joint 3 is connected to the upper and lower columns 2 (a total of four columns) at both left and right ends thereof, the structural strength is improved. .

Further, in the present invention, when the lock pin 9 inserted into the pin insertion hole 7 of the support column 2 is rotatably supported and retractably supported in the pin insertion hole 7, an operator can lock the lock pin. 9 is not required to be carried around, which is advantageous in increasing the safety of the work for constructing the temporary structure, and since the lock pin 9 is pre-aligned with the pin insertion hole 7 of the connecting metal fitting 8 of the column 2, the column The post 2 and the horizontal joint 3 can be easily connected only by aligning the pin insertion hole 18 of the horizontal joint 3 with the pin insertion hole 7 of 2 and pushing in the lock pin 9.

On the contrary, as shown in FIG. 4, even if the pin 20 having the above-mentioned function is provided on the connecting fitting 19 of the horizontal joint 3, the same operation as described above can be obtained. Therefore, in any of the above cases, in this case, it is not necessary for the worker to carry the lock pin 9 (20) at the time of construction / disassembly, which is advantageous in improving safety and workability.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary structure according to an embodiment of the present invention will be described in detail with reference to the drawings.

In the temporary structure according to the embodiment of the present invention shown in the perspective view of FIG. 3, four base jacks 1 are arranged at each vertex of a substantially square in a plan view, and each base jack 1
4 columns are formed by sequentially connecting the columns 2 to the upper side, and are adjacent to the connecting surface between the base jack 1 and the columns 2 and the connecting faces of the columns 2 at positions corresponding to the sides of the square. While connecting the base jacks 1 in the street, or the columns 2 with the horizontal joints 3, the middle portion of each horizontal joint 3 and the lower end of each of the base jacks 1 or the columns 2 are connected with the expansion braces 4 or the fixed length braces 6. The horizontal braces 5 connect the base jacks 1 or the columns 2 located diagonally to each other in the square.

As shown in the perspective view of FIG. 2, at the upper end of the base jack 1, two upper and lower two pin insertion holes 7 for horizontal connection and brace connection are provided in four directions at 90 ° intervals. A connecting metal fitting 8 having a U-shaped cross section is provided, and each locking metal fitting 8 is rotatably supported by a lock pin 9 which is inserted into a pin insertion hole 7 of each port. To be done.

Two circumferential grooves 10 are formed in each lock pin 9 at an appropriate distance in the axial direction thereof, and
A vertical groove 11 orthogonal to both circumferential grooves 10 is formed, and a locking pin 13 fixedly supported on one surface of each coupling fitting 8 via a ring 12 is inserted into the vertical groove 11 to lock the lock pin 9.
Is allowed to move back and forth between the insertion position where the pin is inserted into the pin insertion hole 7 and the retracted position where the pin is inserted from the pin insertion hole 7. In addition, by rotating the lock pin 9 around its axis at the insertion position or the withdrawal position and selectively pushing the locking pin 13 into one of the circumferential grooves 10, the lock pin 9 is inserted or withdrawn. It can be held in position.

Each lock pin 9 is provided with a handle 14 for facilitating its operation. Further, a flange-like connecting plate 16 which projects in the horizontal direction is fixed to the lower side of the connecting fitting 8, and a pin insertion hole for connecting the horizontal brace 5 (see FIG. 3) to the connecting plate 16. Have 15.

As shown in the exploded front view of FIG.
At the lower end of the base jack 1 and the connecting metal fitting 8 upside down
Also, the connection plate 16 is fixed, and the connection fitting 8 and the connection plate 16 are fixed to the upper ends of the columns 2 in the same manner as the base jack 1. However, the connecting plate 16 at either the upper end or the lower end of each column 2 may be omitted.

Further, the base jack 1 and each support 2
A joint 17 is provided at the upper end of the so as to project upward from the upper end. As shown in FIG. 1, a plate-like connecting fitting having two upper and lower pin insertion holes 18 corresponding to the upper and lower columns 2 or the respective pin insertion holes 7 of the base jack 1 at both ends of each horizontal joint 3. 19 is provided, and after the lock pin 9 is positioned at the retracted position, the pin insertion hole 18 on the lower side of the connecting fitting 19 is inserted into the base jack 1.
The horizontal joint 3 is connected to the base jack 1 by aligning with the pin insertion hole 7 on the upper side of the connection fitting 8 and pushing the lock pin 9 into the insertion position.

After that, the lock pin 9 on the lower side of the connecting fitting 8 at the lower end of the column 2 is positioned at the retracted position, and then the lower end of the column 2 is inserted into the joint 17 and the column 2
The position of the connecting metal fitting 8 is aligned with the position of the connecting metal fitting 19 of the horizontal joint 3, and the upper part of the connecting metal fitting 19 of the horizontal joint 3 is inserted into the connecting metal fitting 8 of the support column 2.

Here, it is important to note that the connecting metal fitting 8 of the support pillar 2 and the connecting metal fitting 19 of the horizontal joint 3 are both visible, so that the alignment of the support pillar 2 around the axis is both the connecting metal fittings 8, 19. Can be done very easily and quickly by
This significantly improves the workability in constructing the temporary structure.

With this position adjustment, the connecting fitting 8 of the support 2
After inserting the upper part of the connecting fitting 19 of the horizontal joint 3 into the above, the lower lock pin 9 of the connecting fitting 8 at the lower end of the column 2 is moved to the insertion position, and the horizontal joint 3 and the base jack 1
And the column 2 are connected.

In the same manner, it is possible to further extend the support pillar 2 in the upper layer to the support pillar 2. However, by preliminarily holding the lock pin 9 in the connecting metal fitting 8 arranged on the support pillar 2 in this manner, for example, This eliminates the need for an operator to carry the lock pin 9, which is advantageous in improving safety, especially in high places.

Further, it is not necessary for an operator to take out the lock pin 9 from the bag and insert it into the connecting fittings 8 and 19, and the lock pin 9 can be easily operated by rotating and pushing. Since it can be inserted into the connecting fittings 8 and 19, workability is remarkably improved.

Further, one horizontal joint 3 is provided at each of the left and right ends of the lower support column 2 and the upper support column 2, or as shown, the base jack 1 and the support column 2 connected to the upper portion thereof (total). Since it is connected to the four columns or the base jack 1), the structural strength is improved.

Of course, it is not necessary to form a pin insertion hole through which a pin for connecting these is inserted in the base jack 1, the support 2 or the joint 17 fixed to these, and the pin insertion hole can be omitted. Due to
The structures of the base jack 1 and the column 2 can be simplified and their strength can be increased.

In this embodiment, the stretch brace 4 or the brace 6 and the horizontal joint 3, the stretch brace 4 and the lower portion of the base jack 1, the fixed length brace 6 and the lower portion of the support column 2, the connecting plate 16 and the horizontal brace 5 are respectively provided. Pin or bolt
The nuts are connected using a nut, but since these connecting structures are not directly related to the present invention, a detailed description thereof will be omitted here.

The procedure for adding the support 2 upward is not limited to the above procedure. For example, the lower end of the support 2 is first inserted into the joint 17 of the base jack 1, and the connecting metal fittings 8 for both are connected.
After aligning the
Alternatively, the lock pin 9 may be used to connect the base jack 1, the column 2, and the horizontal joint 3 to each other. In this case, the connection metal fittings 8 of the base jack 1 and the connection metal fittings 8 of the support columns 2 are aligned, but this alignment can also be done by visually observing both the connection metal fittings 8, so that it is easy to perform the same operation as described above. And it can be done quickly.

Further, since it is not necessary to remove the lock pin 9 from the connecting fitting 8 during the dismantling work and to collect it, the workability and safety of the dismantling work can be improved. In the embodiment shown in FIGS. 1 to 3, the connecting bracket 8 having a U-shaped cross section is arranged on the side of the supporting column 2, while the connecting bracket 8 having a U-shape is provided at both ends of the horizontal joint 3. Although the matching plate-shaped connecting fittings 19 are arranged, the arrangement may be reversed.

That is, FIG. 4 is a perspective view of an essential part of another embodiment according to the present invention. In the configuration shown in FIG. 4, the connecting metal fittings 8 provided on the columns 2 in the above-described embodiment are connected horizontally. On the other hand, the plate-like connecting fittings 19 provided at both ends of the horizontal joint 3 are fixed to the ends of the support 2, and project at equal intervals at four positions around the circumference of the support column 2. The temporary structure can be constructed by the same work procedure.

Further, FIG. 5 is a perspective view of another embodiment according to the present invention. In this embodiment, instead of the lock pin 9, a wedge 91 is arranged on the connecting fitting 8 of the column 2, and By strongly pushing the wedge 91 over the pin insertion hole 7 of the connecting fitting 8 and the pin insertion hole 18 of the connecting fitting 19 of the horizontal joint 3, the support column 2 and the horizontal joint 3 are connected. A protrusion 91a is provided at the tip of the wedge 91, and the wedge 91 is connected to the connecting fitting 8 at the standby position.
I try to prevent it from falling off more.

[0032]

As described above, according to the present invention, the upper and lower struts are connected to each other via the horizontal connecting metal fittings, and in the past, the joint for connecting the upper and lower struts and the upper and lower end portions of the struts are connected. By omitting the pin hole formed in one or both of them, the structure of the support pillar can be simplified and the strength of the support pillar can be increased.

When connecting the upper and lower struts, it is necessary to align the positions of the upper stanchion fittings with respect to the lower stanchion and the horizontal connecting fittings about the axis.
This positioning can be performed easily and quickly by visually observing both the horizontal connecting metal fitting and the upper supporting metal fitting, so that workability can be improved.

Furthermore, since the upper and lower columns are directly connected to the horizontal joint, the connection strength between the horizontal joint and the upper and lower columns can be increased. In the present invention, when the pin inserted into the pin insertion hole of each port is rotatably supported in the coupling fitting of the support column and is retractably supported in the pin insertion hole, the worker attaches the pin to, for example, a bag. Since it is not necessary to put it in the rack and carry it, it is advantageous for improving the safety of work, and since the pin is pre-positioned with respect to the pin insertion hole of the support fitting of the support, the horizontal connection of the support fitting of the support is possible. Just align the positions of the connecting brackets and push the pin in.
The stanchions and the horizontal joints can be connected easily and quickly, and the workability of the construction work can be further enhanced.

Further, in this case, since it is not necessary for the operator to collect the pins at the time of disassembling, the safety and workability of the disassembling work can be improved.

[Brief description of drawings]

FIG. 1 is an exploded front view of an embodiment of the present invention.

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is a perspective view of a main part of an embodiment of the present invention.

FIG. 4 is a perspective view of another embodiment of the present invention.

FIG. 5 is a perspective view of another embodiment of the present invention.

[Explanation of symbols]

 1 base jack 2 post 3 horizontal connection 7 pin insertion hole 8 connection fitting 9 lock pin 18 pin insertion hole 19 connection fitting

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadahiko Fujishiro 6-14-19 Shinjinno, Kakogawa City, Hyogo Prefecture

Claims (3)

[Claims] 1. A temporary structure including a plurality of vertical columns and a horizontal joint for connecting a plurality of laterally-arranged columns, wherein a horizontal joint connecting pin insertion hole is provided at an upper end and a lower end of the column. A connecting metal fitting is provided, and the pin insertion hole of the lower pillar of the pillars that are vertically connected to both ends of each horizontal joint,
A temporary structure comprising a connecting fitting having upper and lower two pin insertion holes corresponding to the pin insertion holes of the upper column. 2. The lock pin inserted into the pin insertion hole is rotatably supported by the connection fitting of the column so that the lock pin can be retracted into and retracted from the pin insertion hole. Temporary structure. 3. The lock pin inserted into the pin insertion hole is rotatably supported by the horizontal joint member so that the lock pin is inserted into and removed from the pin insertion hole. Temporary structure.