JP3050693B2 - Column positioning jig and column installation method of overhang unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for positioning a column of an overhanging unit and an installation method thereof, and more particularly, to a vulcanized portion or an overhang portion of a prefabricated building constructed by a unit construction method.

[0002]

2. Description of the Related Art Conventionally, unit construction methods have been frequently used for building buildings such as houses in order to achieve the objectives of simplifying on-site work and reducing construction costs. In this unit construction method, building units such as living room units constituting the living room portion of the building and overhanging units constituting the balcony portion are divided and produced in advance at the factory, and these building units are arranged and laminated at the construction site. To build a prefabricated building by interconnecting.

Some overhanging units have their own weight supported by a plurality of pillars that are erected below. Each pillar, like other building units, is produced as a unit at the factory and connected to the overhang unit at the construction site. For such pillars, the frame is finished with a predetermined decorative material or the like to simplify on-site work.

[0004] The overhang unit in such a configuration is as follows.
Conventionally, it is installed by the following work procedure. First, a plurality of pillars are separately produced in a factory and transported to a construction site. At the construction site, the pillars are individually lifted by connecting a crane or the like to the upper end of the frame of the pillars, and the lower ends of the pillars are positioned by engaging the pillar positioning portions provided on the ground surface. The operator supports the pillars by hand and holds the columns upright.

[0005] Next, the overhanging unit is lifted by a crane or the like and placed above each pillar. Then, the operator adjusts the direction of the columns so that the upper end of each column is engaged with a column connection portion provided at a predetermined position on the lower surface of the extension unit. Finally, in this state, the projecting unit is gradually lowered to engage the column connecting portion and the column, and these are connected by bolting or the like, thereby completing the operation.

[0006]

However, when connecting a plurality of independent columns to the overhanging unit, it is necessary to simultaneously engage the upper ends of the columns with the column mounting portions. For this reason, if there is a column that cannot be engaged with the column mounting portion, it is necessary to raise the overhang unit again and adjust the direction of the column again including the column that has been engaged with the column mounting portion. There was a problem that it became complicated.

[0007] Further, since the columns are separately erected, a dedicated worker is required for each column in order to maintain the columns standing and adjust the orientation. Therefore, a large number of workers are engaged in the installation work to connect the plurality of pillars to the overhanging unit, and there is a problem that the work efficiency on site is low.

Further, each of these workers cannot perform other work until the installation work of the overhanging unit is completed, and there is also a problem that work on the construction site cannot be performed in parallel and efficiency is low. .

Further, since each pillar is lifted by a crane or the like when it is arranged at a predetermined position, there is a possibility that the decorative material may be damaged by contact with other members. Therefore, it is necessary to repair the damaged portion at the construction site, and there is a problem that the site work becomes complicated. In particular, since each pillar is individually lifted by a crane, there is a possibility that the cosmetic material may be damaged each time, and there is a problem.

An object of the present invention is to provide a column positioning jig for an overhanging unit and a method of installing the column, which can enhance the working efficiency at a construction site.

[0011]

A column positioning jig for an overhanging unit according to the present invention is a column positioning jig for an overhanging unit used for a plurality of columns supporting an overhanging unit installed outside a prefabricated building. a is, possess integrally holdable Plane, and a fixing means for fixing and holding the pillars to the Plane at a predetermined positional relationship corresponding to said plurality of columns in each of the installation state, the fixed The means is provided between the plurality of surfaces and the plurality of surfaces.
A column is sandwiched, and one of the construction surface and the fixing means is formed in a frame shape.
It is characterized by being formed .

Here, a frame or a flat plate made of a substantially frame shape can be used as the construction surface, and a mark or a protrusion on which a pillar can be arranged in a positional relationship corresponding to the pillar connecting portion of the overhanging unit can be used. And so on. Further, as the fixing means, it is only necessary that each column can be detachably disposed, and a jig for bolt fixing or magnetic fixing can be used.

It is preferable that a buffer member is provided between a contact portion of the fixing means and the column. Here, as the cushioning member, a material having elasticity such as urethane rubber can be used, and it may be provided in advance at a portion which comes into contact with the decorative material.

Further, the method of installing pillars of an overhanging unit according to the present invention is a method of installing pillars of an overhanging unit installed outside a prefabricated building and supported downward by a plurality of pillars. The pillars are integrally held in a predetermined positional relationship corresponding to each installation state by the positioning jig having the above configuration, the plurality of pillars are erected integrally at a construction site, and the overhanging unit is Hanging at an installation position outside the building, connecting the overhanging unit and the plurality of columns, and removing the pillar positioning jig after completing the connection work between the overhanging unit and the plurality of columns. .

[0015]

According to the present invention, since the columns are connected via the structural surface, a plurality of columns can be integrally handled. Therefore, each pillar does not need to be individually transported to the construction site, installed at the construction site, and adjusted in direction, so that a dedicated worker is not required. Also,
Since the columns are arranged in a predetermined positional relationship corresponding to the column connecting portions, the columns can be simultaneously engaged with the extension unit. Furthermore, since each pillar is fixed to the construction surface, inconveniences such as breakage due to contact between the decorative material and other members are prevented, and the above object is achieved.

[0016]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a prefabricated building 10 according to one embodiment of the present invention. The prefabricated building 10 of the present embodiment is constructed by a unit construction method including a plurality of living room units 11, and the balcony portion thereof is formed by an overhanging unit 13 supported below by a plurality of pillars 12. .

The pillars 12 are provided with a decorative material 15 in advance at a factory on a frame 14 having a substantially square cross section, and are fixed in a substantially parallel state by a pillar positioning jig 16. Here, the column positioning jig 16
Is constructed based on the present invention, and has a surface 17 on which the respective columns 12 can be arranged in a predetermined positional relationship, and a fixing means 18 capable of fixing the respective columns 12 to the surface 17. It is configured.

As shown in FIGS. 2 and 3, the construction surface 17 is formed by combining two first members 19 each having a substantially C-shaped cross section and a second member 20 having a substantially rectangular cross section. Is configured. The construction surface 17 has a dimension (height dimension in FIG. 2) on the second member 20 side smaller than a longitudinal dimension of the column 12.
Numeral 12 is such that, when it is arranged on the construction surface 17, both ends in the longitudinal direction project in the direction of the edge of the construction surface 17. The first member 19 on the upper side of the column 12 is provided with a suspending bolt 21 to which a crane or the like can be connected at both ends in the longitudinal direction.

Each of the first members 19 is provided with a plurality of positioning portions 22 for positioning the columns 12 at predetermined positions in the longitudinal direction. The positioning portion 22 is arranged on the first member 19 such that the angle members 23 having a substantially L-shaped cross section are opposed to each other at a predetermined interval slightly larger than the cross-sectional width of the column 12.
23 and a buffer member having a substantially C-shaped cross section along the first member 19.
24 are provided. These positioning portions 22 are formed such that the intervals in the width direction correspond to the positions of the column mounting portions of the overhanging unit 13.

The cushioning member 24 is made of a resilient material such as urethane foam rubber. When the column 12 is inserted, the cushioning member 24 is compressed and adhered to prevent the shock or the like from being transmitted. The positioning unit 22 such as these is provided by the overhanging unit shown in FIG.
13 are provided at predetermined intervals corresponding to a plurality of column mounting portions (not shown) provided on the lower surface.

The fixing means 18 includes a first member 19 on the surface 17.
Attach a fixing member 25 substantially parallel to the first member 19 and the fixing member 25
The column 12 is fixed by sandwiching the column 12 with the column 25.
The fixing member 25 has a substantially C-shaped cross section similar to that of the first member 19, and is screwed with a fixing nut 27 provided on the first member 19 through a fixing bolt 26 passing through a substantially central portion in the longitudinal direction. It is fixed detachably.

The fixing bolt 26 can be attached and detached without using a tool by a handle portion 28 formed on its head.
The retaining member 29 provided on the shaft portion prevents the fixing member 25 from being detached from the solid member 25 even when the fixing member 25 is detached from the construction surface 17.

The fixing member 25 is provided with a fixing portion 30 at a position corresponding to the positioning portion 22 on the construction surface 17. The fixing portion 28 is disposed on the fixing member 25 so as to oppose the angle members 31 having a substantially L-shaped cross section at a predetermined interval slightly larger than the cross-sectional width of the column 12, and along the angle members 31 and the fixing member 25. A cushioning member 32 is provided in a substantially C-shaped cross section, and has a configuration similar to that of the positioning section 22 described above.

In this embodiment, the pillars 12 are preliminarily arranged on the construction surface 17 at a factory in a predetermined positional relationship, and the fixing member 25 sandwiches the attached portion of the finishing material 15 in the construction surface.
Fix to 17 and transport it to the construction site. At the construction site, a wire extending from the tip of the crane is connected to the suspension bolt 21, and the construction surface 17 is lifted. Then, as shown in FIG. 1, the column positioning portion 33 provided on the ground surface is suspended so as to be engaged with the lower end portion of each column 12, and these are fixed by bolting or the like, and the operator can adjust the structure. Hold the surface 17 by hand and hold each pillar
12 is erected.

Next, the overhanging unit 13 is lifted by a crane and gradually lowered on the construction surface 17. The operator appropriately adjusts the orientation of the construction surface 17 and engages the tip of each column 12 with the column mounting portion. At this time, since the columns 12 are previously arranged on the construction surface 17 in a predetermined positional relationship corresponding to the column mounting portions, the orientation is integrally adjusted. Then, the overhanging unit 13 is completely suspended and its own weight is supported by the columns 12, and each of these columns is
12 and the overhanging unit 13 are connected by appropriate means such as bolting. Finally, by removing the fixing bolt 26 from the first member 19, the construction surface 17 and the fixing member 25 are removed from the pillar 12,
Complete the work.

According to the present embodiment as described above, since each column 12 is arranged in a connected state via the construction surface 17, each column 12
This eliminates the need for a dedicated worker, thereby improving work efficiency at the construction site.

Further, since the columns 12 are arranged in advance in a predetermined positional relationship corresponding to the column mounting portions of the overhanging unit 13, the operator can simultaneously move the upper ends of the plurality of columns 12 over the overhanging unit.
13, and the working efficiency can be further improved.

Further, since each pillar 12 is protected by the construction surface 17 and the fixing member 25, it does not come into direct contact with other members when lifted by a crane or the like.
Is less likely to be damaged.

Since the cushioning members 24 and 32 are interposed between the pillars 12 and the fixing means 18 , even when the construction surface 17 or the fixing member 25 comes into contact with other members, the impact is prevented. Is less likely to be transmitted to the pillar 12, and the possibility that the decorative material 15 is damaged is further reduced.

Each column 12 is lifted by a lifting bolt 21.
The surface 17 is lifted by connecting the wire extending from the crane to the surface, so that unnecessary friction does not occur between the decorative material 15 and the cushioning members 24 and 33, and the surface of the decorative material 15 is not scratched. Will not occur.

Further, since the pillars 12 are integrated together via the structural surface 17, it becomes easy to manage the number of members in the factory and to confirm the number of members at the time of shipment, and there is a problem that the number of members is insufficient at the construction site. Hateful. Each column 12 is placed with the construction surface 17 side down, so that stability is obtained during storage and transportation, and the possibility of damaging the decorative material 15 is further reduced.

In addition, since the construction surface 17 is formed so that both ends in the longitudinal direction of the column 12 project, the lower end and the upper end of the column 12 are engaged with the column positioning portion 33 and the column mounting portion, respectively. Each of these operations can be easily performed without obstructing the operation.

The fixing member 25 is provided with each fixing bolt 26
The work can be easily removed from the construction surface 17 by loosening, so that the work on the construction site does not become complicated.
In particular, since the fixing bolt 26 is provided with the retaining portion 29, even when the fixing member 25 is detached from the construction surface 17, it does not fall off the fixing member 25 and is not lost at the construction site.

The present invention is not limited to the above-described embodiments, but includes improvements, modifications, and the like within a range in which the present invention can be achieved.

For example, in the above-described embodiment, the fixing portions 30 are connected in the width direction by the fixing members 25. However, the following configuration may be adopted. In FIG. 4 (A), the fixing portions 30 are independent of each other, and each of the fixing portions 30 is attached to face the positioning portion 22 of the construction surface 17. According to such a configuration, the number of components constituting the whole can be reduced by eliminating the need for a fixing member, and the predetermined interval between the columns can be set arbitrarily, so that versatility to other overhanging units can be obtained.

In FIG. 4 (B), independent fixing portions 30 are directly attached to the construction surface 17 from which the positioning portions are omitted. According to such a configuration, the positioning section is not required, and the number of components constituting the whole can be further reduced.

In the above-described embodiment, the worker holds the construction surface 17 upright by hand. However, the construction surface 17 may be held upright by the standing means 40 as shown in FIG. 5A is held upright by wires 41 extending in four directions from the upper corners. Each of these wires 41 is provided with a turnbuckle 42 so that the construction surface 17 can be erected at an arbitrary angle. According to such a configuration, an operator for standing and holding the plurality of columns 12 is not required, and the work efficiency at the construction site is further improved.

The construction surface 17 in FIG. 5B is configured to be self-supporting by supporting legs 42 provided at the lower corners. According to such a construction surface 17, the work of burying the tip of the wire 41 in the ground becomes unnecessary, and the work efficiency at the construction site can be further improved.

In this embodiment, the positioning section 22
The fixing part 30 is fixed to the construction surface 17 and the fixing member 25, respectively, but may be detachably formed at an arbitrary position. With such a configuration, it is possible to correspond to the column mounting portion of another overhanging unit, and versatility can be obtained for a plurality of overhanging units.

The cushioning members 24 and 32 may be made of wood, cloth, paper, spring, gas, or the like, in addition to the urethane foam rubber, as long as they can reduce the impact transmitted to the decorative material 15. good.

Further, the construction surface 17 is formed so that both ends in the longitudinal direction of the column 12 project, but may be formed so that the upper and lower ends of the column 12 do not project. At this time, the column positioning portion and the end mounting portion may be formed so as to project toward the upper and lower ends of the column 12. With such a configuration, the pillar 12
Is further reduced without direct contact with other members, and the possibility that the decorative material 15 is damaged is further reduced.

Although the frame has a frame shape as an example, the frame may be a plate-like member. Further, in the present embodiment, the columns 12 are arranged in a substantially parallel state on the same surface of the construction surface 17, but, for example, the columns are arranged on the front and back of the construction surface 17, or each pillar 12 has a substantially mountain shape. And may be set as appropriate in accordance with the position of the column positioning section and the column mounting section.

In the present embodiment, a plurality of pillars are integrally held on the surface of the structure. However, each pillar is substantially parallel to a plurality of structural members in a substantially cross-girder shape. You may make it connect and comprise a structure surface including each pillar.

Further, as the fixing means, bolt tightening has been adopted, but a jig or the like which magnetically fixes the column frame or tightens it with a cargo handling band may be used.

In addition, as the overhang unit in this embodiment, a balcony unit projecting from a building is exemplified. However, the present invention can be applied to an overhang portion which is a living room projecting outward from an upper floor of the building. It is something.

[0046]

According to the present invention as described above, it is possible to provide a column positioning jig and an installation method of an overhanging unit capable of improving work efficiency at a construction site.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of the present invention.

FIG. 2 is an overall perspective view showing a column positioning jig used in the embodiment.

FIG. 3 is a transverse sectional view showing details of a column positioning jig of the embodiment.

FIG. 4 is a schematic perspective view showing a modification of the present invention.

FIG. 5 is a schematic perspective view showing a modification of the present invention.

[Explanation of symbols]

Reference Signs List 10 prefab building 13 overhanging unit 12 pillar 16 pillar positioning jig 17 construction surface 18 fixing means

Claims (3)

(57) [Claims] 1. A column positioning jig for an overhanging unit used for a plurality of columns supporting an overhanging unit installed outside a prefabricated building, wherein the plurality of columns correspond to predetermined installation states corresponding to respective installation states. And a fixing means for fixing and holding the column to the structure surface, and the fixing means sandwiches the plurality of columns between the structure surface and the fixing surface. And a column positioning jig of the overhanging unit, wherein one of the construction surface and the fixing means is formed in a frame shape. 2. A column positioning jig for an overhanging unit according to claim 1, wherein a buffer member is provided between a contact portion between the fixing means and the column. Column positioning jig. 3. A pillar installation method of the overhang unit supported downward is placed on the outside of prefabricated buildings plurality of posts, described the plurality of pillars to claim 1 or 2 in the factory < A plurality of pillars are integrally erected at a construction site by integrally holding them in a predetermined positional relationship corresponding to each installation state by a positioning jig, and the overhanging unit is placed outside the building. The projecting unit is connected to the plurality of columns, and after the connection work between the projecting unit and the plurality of columns is completed, the column positioning jig is removed. How to install the pillar of the unit.