JP3221782B2 - Fireproof structure and fireproof panel unit of prefabricated building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure and a fireproof panel unit of a prefabricated building, and can be used, for example, in a prefabricated building in which a living room is formed by a building unit and a roof is formed by a roof panel.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, in building a house or the like, as shown in FIG. A prefabricated construction method in which a prefabricated building 70 is constructed by transporting a 73 or a substantially flat roof panel 74 to a construction site by a truck or the like and combining them is often used. In this prefabricated building 70, a three-story living room portion 75 is formed by hanging and stacking a plurality of building units 71 to 73 with a crane or the like, and a gable-shaped roof portion 76 is formed on the top of the living room portion 75. Roof panel support members 77, bundle columns provided on building units 73 that constitute floors
It is formed by tilting and supporting a roof panel 74 which is a roof unit at 78.

[0003] By the way, in the prefabricated building 70, there is known a fireproof structure in which a fireproof material such as a lightweight cellular concrete board (hereinafter abbreviated as ALC board) is disposed between the living room portion 75 and the roof portion 76. For this reason, prefabricated buildings
In 70, the building units 73
A method has been considered in which a refractory material is attached to the upper surface of a building, and the refractory material is automatically arranged by disposing the refractory material at a predetermined position at a construction site.

[0004]

However, if a relatively heavy ALC board is previously attached to a building unit at a factory in advance, the center of gravity of the building unit becomes high. It is difficult to obtain stability during the hanging work, and it takes time and effort to work, and vibration occurs during transportation, making it difficult to maintain the accuracy of the frame and hinder the installation of the interior etc. is there. Also, the building unit is inherently heavy because it has a steel frame, and if a relatively heavy ALC plate is attached, there is a possibility that the building unit will exceed the load capacity that can be loaded on a truck that transports the building unit to the construction site. There is. For this reason,
It is necessary to use a dedicated truck for the building unit to which the ALC board is attached, and there is also a problem that the transportation cost is increased.

Further, in a multi-storey prefabricated building,
The ALC board is often attached only to the building unit on the top floor, and in this case, the building unit on the top floor and the building unit on the lower floor are different in type. Therefore, there is a problem that the number of types of building units increases and the production cost of building units in a factory increases. In order to solve such a problem, it is conceivable to adopt a structure in which all the building units constituting the living room are formed identically and a fireproof material is attached to the wall surface of the roof portion. There is a problem that it is not possible to expand the variation of the roof shape because it is necessary to prepare the roof.

[0006] The above problems also occur when the roof portion is formed by a roof unit instead of a roof panel. An object of the present invention is to provide a fire-resistant structure and a fire-resistant panel unit for a prefabricated building that can obtain stability during transportation to a construction site or during hanging work, maintain the accuracy of the frame, and reduce transportation and production costs. To provide.

[0007]

According to a first aspect of the present invention, there is provided a fireproof structure for a unit-type building, comprising: a plurality of building units having a substantially rectangular parallelepiped frame; a roof unit supported by these building units; the mounted on the upper surface of the frame of each building unit, have a refractory panel unit comprising a refractory material which is interposed covering the upper surface substantially entire area of the building units between these building unit and the roof section unit, Between the refractory panel units adjacent to each other
It is characterized by a refractory material being bridged . here,
The roof unit includes a roof panel supported by a bundle column and a roof unit stacked on a building unit.

A fireproof panel unit for a prefabricated building according to a second aspect of the present invention includes a frame having a frame shape substantially coinciding with the plane shape of the building unit, and an upper surface substantially supported by the frame. and a formed so as to cover the entire refractory material, frame of the building unit
Attached to the upper surface of the arm, characterized in Rukoto. Furthermore, the refractory panel unit prefabricated building third invention according to the present invention is characterized in that the support portion capable of supporting is provided the roof unit, for example, directly fixable pedestal and bundle the roof panel A structure in which a pedestal or the like for connecting the columns is provided can be used.

[0009]

In the fire-resistant structure of the unit type building according to the first aspect of the present invention, the fire-resistant panel unit is interposed between the building unit and the roof unit. Therefore, there is no need to attach a refractory material. Accordingly, instability during transportation and lifting due to an increase in the center of gravity of the building unit can be eliminated, and frame accuracy can be maintained. Further, since the weight of the building unit does not increase, a dedicated truck is not required for transportation. Further, even when the living room is formed with a plurality of floors, the uppermost floor and the lower floor can be formed by the same building unit, so that the necessity of multi-product production of building units in a factory can be reduced. In addition, the fireproof panel unit is
Since it is attached to the upper surface of the frame,
It can support the load of the fire panel unit,
More resistant material with refractory material such as a relatively heavy ALC plate
Fire panel units, etc., securely with the building unit frame
I can support it.

Further, in the fireproof panel unit for a unit building according to the second invention of the present invention, since the fireproof material is unitized by being supported by a frame-shaped frame, it can be transported from a factory or suspended at a construction site. Work and installation work to the building unit can be easily performed. Ma
The fireproof panel unit is
Since it is attached to the top surface, the frame
The unit's load can be supported,
Refractory panel with refractory material such as relatively heavy ALC plate
Securely support units, etc. with the building unit frame
Can be installed on the building unit.
Work can be done easily. Further, the third aspect of the present invention
In the fireproof panel unit of the unit-type building according to the present invention, since the support portion capable of supporting the roof unit is provided, the roof unit can be easily attached, and the above object is achieved.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. In the embodiments described below, members and the like denoted by the same reference numerals as those shown in FIG. 7 indicate that the configurations and the like are substantially the same. Therefore, the description of these members will be omitted.

FIG. 1 shows an embodiment according to the present invention. The building unit 73 of this embodiment is produced by attaching a not-shown interior and exterior to a frame 10 made of steel material and having a substantially rectangular parallelepiped shape at a factory.
Is located on the top floor of the living room portion 75 (see FIG. 7). The building unit 73 includes four pillars 11 on which the frame 11 is erected at four corners, and four upper beams 12 and lower beams which are bridged between the upper ends and the lower ends of these pillars 11 in a substantially rectangular plane.
13 and a fireproof panel unit on its upper surface
20 are installed.

The fireproof panel unit 20 includes a building unit 73.
And a plurality of refractory materials 22 supported by the frame 21 and formed to cover substantially the entire upper surface of the building unit 73. In the frame 21, an angle member 23 having a substantially L-shaped cross section is connected in a substantially rectangular shape in a plane, and a plurality of reinforcing angle members (not shown) are bridged between the angle members 23 on the long sides parallel to each other. . The refractory material 22 is an ALC plate having a substantially rectangular flat plate shape and having fire resistance. These refractory materials 22 are formed so as to be supported by the frame 21 and cover substantially the entire upper surface of the building unit 73.

The fire-resistant panel unit 20 is provided with a first support portion 24 and a second support portion 25 capable of supporting a roof panel 74 at four corners of the plane. As shown in FIGS.
The support portion 24 includes a pair of substantially L-shaped rising members 26 connected to the outer surface of the frame 21 and extending upward, and a holding member 27 connected to these rising members 26 and holding the upper surface of the refractory material 22.
And the roof panel 74 connected to the rising member 26 (see FIG. 3)
And a contact member 28 that comes into contact with the back surface of the contact member.

An insertion hole 30 through which a fixing bolt 29 can be inserted is formed in a portion of the holding member 27 protruding from the rising member 26. The insertion hole 30 is formed continuously with the holding member 27, the refractory material 22, and the angle material 23, so that the fixing bolt 29 can be screwed into the fixing nut 31 provided on the upper beam 12 of the building unit 73. It has been. An embedding nut 32 is embedded in the refractory material 22 at an upper end of the insertion hole 30.
The embedding nut 32 can be screwed with a suspension bolt 33 having a larger thread diameter than the fixing bolt 29.
Therefore, in the insertion hole 30, the hanging bolt 33 can be screwed, and the fixing bolt 29 can be inserted and screwed to the fixing nut 31 of the building unit 73. The contact member 28 is provided at an inclination angle corresponding to the roof inclination of the roof panel 74, and on its surface is provided a positioning pin 34 and an insertion hole 36 through which a fixing bolt 35 for fixing the roof panel 74 can be inserted. ing.

As shown in FIGS. 5 and 6, the second support 25
Is a planar substantially L-shaped rising member 37 connected to cover the corners of the frame 21 and extending upward;
And a pressing member 38 connected to the upper end edge of the refractory material 37 and pressing the upper surface of the refractory material 22. The holding member 38 has an insertion hole 30 at a substantially central portion thereof, through which the fixing bolt 29 can be inserted. The insertion hole 30 is formed by the pressing member 38, the refractory material 22, and the angle material 23 similarly to the insertion hole 30 of the first support portion 24 described above.
The fixing bolt 29 can be screwed into a fixing nut 31 provided on the back side of the upper end surface of the column 11 of the building unit 73. An embedding nut 32 is embedded in the refractory material 22 at an upper end of the insertion hole 30. The embedding nut 32 can be screwed with a suspension bolt 33 having a larger thread diameter than the fixing bolt 29. Therefore, in the insertion hole 30, the hanging bolt 33 can be screwed, and the fixing bolt 29 can be inserted and screwed to the fixing nut 31 of the building unit 73.

On this second support portion 25, a bundle column 39 extending over four second support portions 25 adjacent in the horizontal direction can be attached. The bundle pillar 39 is provided with a fixing bolt on each of the second support portions 25.
A fixing plate 40 fixed by the fixing plate 29, a column member 41 extending upward from the fixing plate 40, and a contact member 42 connected to the column member 41 and abutting on the back surface of the roof panel 74 are configured. I have. The contact member 42 is provided at an inclination angle corresponding to the roof inclination of the roof panel 74, and on its surface is provided an insertion hole 36 through which a positioning pin 34 and a fixing bolt 35 for fixing the roof panel 74 can be inserted. ing.

In this embodiment as described above, the building units 71 to 73, the fireproof panel unit 20 having a fireproof material, the roof panel 74 serving as a roof unit, and the bundle pillar 39 are previously stored in the factory.
And transport them separately to the construction site using ordinary trucks. At the construction site, first, the building units 71 to 73 are arranged and stacked to form a living room portion 75. Next, the first support portion 24 of the fireproof panel unit 20 and the second support portion
Hanging bolts 33 are respectively attached to the insertion holes 30 of the support portion 25, wires extending from a crane are connected to these hanging bolts 33, and the fireproof panel unit 20 is suspended and arranged on the upper surface of the frame 10 of the building unit 73 on the top floor. Let it.

Then, while removing the suspension bolts 33 from the first support portion 24, the fixing bolts 29 are inserted through the insertion holes 30 and screwed to the fixing nuts 31, thereby fixing the fireproof panel unit 20 to the building unit 73. Let it. In addition to removing the suspension bolt 33 from the second support portion 25, the bundle pillar 39 is inserted into the insertion hole 30.
The fixing bolt 29 penetrating through the fixing plate 40 is inserted and screwed to the fixing nut 31, the fireproof panel unit 20 is fixed to the building unit 73, and the bundle 39 is straddled over four fireproof panel units 20 adjacent to each other. Attach it.

It is to be noted that a refractory material is appropriately bridged between the side surfaces of the respective refractory panel units 20 adjacent to each other so that the refractory panel units 20 are connected to each other. Finally, lift the roof panel 74 with a crane, etc.
Positioned on the positioning pins 28 and 42 by the positioning pins 34 and fixed by fixing bolts 35 and supported by the fireproof panel unit 20. As a result, the fire-resistant panel unit 20 is building unit
Attached to the top of the frame 10 of the building unit 73
The construction work of the prefabricated building 70 is completed by being interposed between and the roof panel 74 as the roof unit.

According to this embodiment as described above, since the fireproof panel unit 20 is attached to the building unit 73 at the construction site, the position of the center of gravity when the fireproof panel unit 20 is removed does not increase. Therefore, stability can be obtained at the time of transport to the construction site by truck or at the time of hanging work, so that the work can be easily performed. Further, since the position of the center of gravity does not increase, there is no run-out or the like at the time of conveyance, and the accuracy of the frame can be maintained. Further, the building unit 73 is transported separately from the fireproof panel unit 20 to the construction site, so that the weight does not increase. Therefore, for transportation to the construction site,
The same truck as that used for transportation of the other building units 71 and 72 can be used, and an increase in transportation cost can be prevented.

The building unit 73 is a prefabricated building.
Although the fireproof panel unit 20 is installed at the construction site, it can be produced in the same manner as the building units 71 and 72 arranged below the living room portion 75. Therefore, there is no need to perform multi-product production at the factory, and production costs can be reduced. The fireproof panel unit 20 can be used irrespective of the shape of the roof portion 76, and is more versatile than a structure in which a fireproof material is attached to the wall surface of the roof portion 76. For this reason, prefabricated buildings 70
Can expand the variation of the roof shape. In addition,
Fire panel unit 20 on frame 10 of building unit 73
Surface, so that the frame 10
Unit 20 can support the load of the
With a refractory material 22 composed of a heavy ALC plate
Secure the fire panel unit 20 with the frame 10 of the building unit 73.
I can really support it.

Further, the refractory panel unit 20 includes a refractory material 22.
Are unitized by being supported by the frame 21 having a frame shape substantially conforming to the planar shape of the building unit 73, so that they can be easily transported to a construction site and attached to the building unit 73. In addition, the roof panel 74 is supported by the second support portion 25 via the first support portion 24 and the bundle pillar 39 provided in advance on the fireproof panel unit 20. For this reason, when installing the roof panel 74, it is not necessary to separately attach a fixing member or the like, and the construction work at the construction site can be simplified.

It should be noted that the present invention is not limited to the above-described embodiment, but includes improvements, modifications and the like within a range in which the present invention can be achieved. For example, the fireproof panel unit in the above embodiment was attached to a building unit having a substantially rectangular parallelepiped frame, but a building unit having a substantially trapezoidal frame formed to cope with the northern oblique line restriction of the construction site. May be attached to the upper surface of the bend. Although the refractory panel unit has a substantially rectangular plane and a plurality of refractory materials of the ALC plate supported by the frame, the planar shape, the number, the material, and the like of the refractory materials are arbitrary and may be appropriately set in implementation.

Further, the installation position and the installation form of the first support portion and the second support portion may be other than the above-described embodiment, and are arbitrary.
In addition, the bundle pillars are mounted so as to straddle four fireproof panel units adjacent to each other, but a plurality of bundle pillars may be independently mounted on each fireproof panel unit. However, according to the above-described embodiment, the number of bundle columns can be reduced, and the fixing plate can function as a shear plate because the fixing plate straddles each refractory panel unit. In addition, in the above-described embodiment, a prefabricated building in which the living room portion is formed into a plurality of floors by stacking the building units is exemplified, but the present invention is also applied to a single-storey building in which the living room portion is provided between the living room portion and the roof portion. Applicable to all prefabricated buildings where fireproof materials are installed.

[0026]

According to the first aspect of the present invention as described above, stability can be obtained when the building unit is transported or lifted, and the frame accuracy can be maintained by preventing vibration due to vibration. Of roof shapes can be expanded. Also, when constructing a multi-storey prefabricated building, it can be produced in the same manner as a building unit on the lower floor, and a dedicated truck is not required. In addition, fireproof
The panel unit 20 is placed on the top of the frame 10 of the building unit 73.
The fireproof panel unit with the frame 10.
20 can support the load of the
Fire resistant with refractory material 22 composed of heavy ALC board
Secure the panel unit 20 with the frame 10 of the building unit 73
Can be supported. Further, according to the second aspect of the present invention, since the refractory panel unit 20 is unitized, it can be easily transported to a construction site or attached to a building unit. Further, according to the third aspect of the present invention, since the support portion is provided in advance on the fireproof panel unit, there is no need to separately provide a support portion at the construction site, and the construction work at the construction site can be simplified.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a building unit and a fireproof panel unit according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a first support part.

FIG. 3 is a sectional view taken along line III-III shown in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV shown in FIG. 2;

FIG. 5 is a perspective view of a main part showing a second support part.

6 is a sectional view taken along line VI-VI shown in FIG.

FIG. 7 is a schematic side view showing an existing prefabricated building.

[Explanation of symbols]

 20 Fireproof panel unit 21 Frame 22 Fireproof material 24 First support 25 Second support 71-73 Building unit 74 Roof panel

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-237738 (JP, A) JP-A-5-98727 (JP, A) JP-A-4-155066 (JP, A) JP-A-3-3 132536 (JP, A) JP-A-2-186030 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 1/348 E04B 1/94

Claims (3)

(57) [Claims] 1. A plurality of building units having a substantially rectangular parallelepiped frame, a roof unit supported by these building units, and a plurality of building units mounted on an upper surface of a frame of each of the building units. have a refractory panel unit comprising a refractory material which is interposed covering the upper surface substantially whole area of each building unit during the building unit and the roof unit, next to each other
Refractory material is bridged between the refractory panel units
The fire-resistant structure of a prefabricated building characterized by being made . 2. A fire-resistant panel unit for use in a fire-resistant structure of a prefabricated building according to claim 1, wherein the frame has a frame shape substantially coinciding with a plane shape of the building unit, and is supported by the frame. and a formed so as to cover the upper surface substantially entire area of the building units refractory material, the construction
Prefabricated refractory panel unit building, characterized in Rukoto attached to the upper surface of the frame of the object units. 3. The refractory panel unit for a prefabricated building according to claim 2, wherein a support portion capable of supporting the roof unit is provided.