JP3192933B2 - Fireproof construction method and fireproof structure for unit 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 construction method and a fireproof structure for a unit building.

[0002]

2. Description of the Related Art As a fireproof construction method between vertically adjacent building units, for example, a method described in JP-A-6-57840 is known.

According to this construction method, of the vertically adjacent building units, a flexible fireproof covering material is coated and fixed on a framework of a building unit on the lower floor in a state where an extension is provided, and the building unit is mounted on the building unit. After stacking the building units on the upper floor, the extension part of the fireproof covering material is extended and fixed to the framework of the building unit on the upper floor.

[0004]

However, in such a conventional fireproof construction method for a unit-type building,
After stacking the building units, it is necessary to extend the extension of the fireproof covering material and cover and fix it to the framework of the building unit on the upper floor, and for the work, the floor or floor of the building unit on the upper floor is required. Since it is necessary to provide a working hole in advance on the ceiling of the building unit on the lower floor, there is a problem that the working efficiency is extremely low.

Further, in this fire-resistant construction method, it is not possible to provide the fire-resistant covering material with the ability to follow the deformation of the framework of the building unit. There is also a problem that the extension of the refractory coating material may come off the framework of the building unit.

Accordingly, the present invention has been made in view of the above-mentioned problems, and a first object of the present invention is to perform a fireproof construction between upper and lower adjacent building units with high work efficiency. A second object is to keep fire resistance even when deformed.

[0007]

In order to achieve the above first and second objects, a fireproof construction method for a unit type building according to the present invention comprises a fireproof construction method between vertically adjacent building units. One of the building units on the upper floor and the building unit on the lower floor has a leaf spring with the tip facing upward, and the tip is pressed by the fireproof layer provided on the other building unit when the building units are stacked, resulting in elastic deformation. To extend the fireproof covering material covering the framework of the building unit, wrap the tip of the leaf spring with the extension, and then stack the building units to obtain the elastic force of the leaf spring. Thus, the extended portion of the refractory coating material is pressed against the refractory layer.

In order to achieve the second object,
The fire-resistant structure of the unit-type building of the present invention is a fire-resistant structure between vertically adjacent building units, and a leaf spring whose tip is directed upward is fixed to one of the building unit on the upper floor and the building unit on the lower floor. The tip of the leaf spring is wrapped by an extension of the fireproof covering material covering the framework of the building unit, and is elastically deformed by being pressed by the fireproof layer provided on the other building unit. The extension of the refractory coating is pressed against the refractory layer by the elastic force of the leaf spring.

[0009]

In the fireproof construction method according to the first aspect of the present invention, even if there is a dimensional error or an assembly error of the parts, the errors are absorbed by the elastic deformation of the tip of the leaf spring when the building units are stacked. You. In addition, since the extension of the refractory coating material and the refractory layer can be crimped at the same time as the building units are stacked, no labor is required after the building units are stacked. Furthermore, even after the construction, even if the framework of the building unit is deformed due to a fire, an earthquake, or the like, the leaf spring elastically deforms following the deformation.

[0010] In the fireproof structure according to the second aspect of the present invention, the extension of the fireproof covering material of one building unit is pressed against the fireproof layer of the other building unit by the elastic force of the leaf spring. Even if the frame of the building unit is deformed due to, for example, the leaf spring elastically deforms following the deformation.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fireproof construction method and a fireproof structure for a unit building according to the present invention will be described below with reference to FIGS.

FIG. 3 is a perspective view showing a framework of a building unit A to which the fireproof construction method and the fireproof structure are applied.

This skeleton comprises four pillars 1,1,1,1
And four ceiling beams 2 connecting the upper ends of the columns 1
2, 2 and 2 and four floor beams 3, 3, 3, 3 connecting the lower ends of the columns 1, wherein the columns 1 are made of square bars and the ceiling beams 2 and the floor beam 3 are made of a channel material having a U-shaped cross section. Note that a floor material, a ceiling material, an outer wall material, and the like are attached to this skeleton.

[0014] Figure 1 is a sectional view showing the upper floors of the building unit A ₂ lower and lower floor of the building units A ₁ top before being stacked, Fig. 2, the upper floor after stacking the building unit A ₂ of a cross-sectional view showing the upper portion of the lower and lower floor of the building unit a _1.

The floor beams 3 of the building unit A ₂ on the upper floor are covered on the upper surface with a fireproof coating material 4, and the floor material 5 is fixed to the floor beam 3 from above the fireproof coating material 4. A fire-resistant layer 6 made of an ALC plate is provided between the floor beams 3 of the building unit A ₂ , and one end of the fire-resistant coating 4 is joined to the upper surface of the edge of the fire-resistant layer 6. .

The ceiling beam 2 of the building unit A ₁ on the lower floor has a lower surface and side surfaces covered with a fire-resistant coating material 7, which is extended to a position higher than the upper surface of the ceiling beam 2. (Hereinafter, the extended portion is referred to as an extended portion 71). A leaf spring 8 made of a thin metal plate is fixed to the upper surface of the ceiling beam 2 with rivets, and a tip portion 81 of the leaf spring 8 is bent upward to stack the building units A ₁ and A ₂ . It is pressed to protrude to a position to elastically deform the refractory layer 6 provided on the building unit a ₂ of upstairs when the, and are wrapped in extension 71 of the refractory coating material 7. The ceiling 9 is fixed to the ceiling beam 2 with rivets from above the fireproof covering material 7.

The refractory coating materials 4 and 7 used are a heat-absorbing pack obtained by solidifying water into a gel with a high heat-absorbing polymer and a ceramic felt having a refractory temperature of 1000 ° C. or more wrapped in a cloth with aluminum foil. ing. In other words, in the event of a fire, the water in the heat absorbing pack evaporates to remove heat, and the heat absorbing action can prevent the temperature rise of the steel frames such as the columns 1 and the beams 2 and 3. Further, since the refractory coatings 4 and 7 are blanket-shaped, they are excellent in that they can be simply wound around the columns and beams 2 and 3 and fastened with washers.

These building units A₁ , A_Two Is the construction
When transported to the site, first, building unit A on the lower floor₁ 
Is installed on the foundation, and then the building unit on the upper floor is
A _Two Is the building unit A on the lower floor₁ Stacked on top of
You. Building unit A₁ , A_Two Are stacked, the leaf spring 8
The extension 71 of the refractory coating 7 is
Since it is press-bonded to the layer 6, the refractory coating materials 4, 7 and the
Is the building unit A on the upper floor_Two Floor beam 3 and lower floor building
Object unit A₁ Of the ceiling beam 2
Can also ensure fire resistance between the upper and lower floors
You.

In other words, in this fireproof construction method, even if there is a dimensional error or an assembly error of the parts, the tip end 81 of the leaf spring 8 when the building units A ₁ and A ₂ are stacked is elastically deformed. Since these errors are absorbed, the extension portion 71 of the refractory coating 7 can be pressed against the refractory layer 6 without being affected by the dimensional accuracy or assembly accuracy of the component.

Further, since the building units A ₁ and A ₂ can be stacked and the extension portion 71 of the refractory covering material 7 and the refractory layer 6 can be crimped at the same time, it is troublesome after the building units A ₁ and A ₂ are stacked. It is very efficient with no work required.

Further, even if the framework of the building units A ₁ and A ₂ is deformed due to a fire, an earthquake, or the like after the construction, the leaf spring 8 is elastically deformed following the deformation. And a gap is unlikely to occur between them.

Here, an example is shown in which the leaf spring 8 is fixed to the building unit A ₁ on the lower floor and the fireproof layer 6 is provided on the building unit A ₂ on the upper floor. fixed to the floor of the building unit a ₂ fireproofing layer 4 the tip
With wrap in the extension, the refractory layer 6 is fixed to the building unit A ₁ in Shitakai, when stacking the building unit A _1, A _2, extensions of the upper floor of the building unit A ₂ refractory coating layer 4 is it may be bonded to the refractory layer 6 of the lower floor of the building unit a _1.

[0023]

As described above, in the fireproof construction method according to the first aspect of the present invention, dimensional errors and assembly errors of parts are reduced by elastic deformation of the tip of the leaf spring when building units are stacked. Because it can be absorbed, the refractory coating can be pressed against the refractory layer without being affected by the dimensional accuracy and assembly accuracy of the parts. In addition, since no labor is required after stacking the building units, the work efficiency is extremely high. Furthermore, even if there is a fire or earthquake after construction, the leaf spring elastically deforms following the deformation of the frame of the building unit, so that there is no gap between the fireproof coating and the fireproof layer. Can be

In the fireproof structure according to the second aspect of the present invention, even if the frame of the building unit is deformed due to a fire, an earthquake, or the like, the leaf spring is elastically deformed following the deformation. The effect that a gap is hardly generated between the extension of the coating material and the refractory layer is obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a lower part of an upper building unit and an upper part of a lower building unit before being stacked.

FIG. 2 is a sectional view showing a lower part of an upper building unit and an upper part of a lower building unit after being stacked;

FIG. 3 is a perspective view showing a framework of a building unit.

[Explanation of symbols]

A ₁ , A ₂ building unit 1 pillar 2 ceiling beam 3 floor beam 4 fireproof coating 6 fireproof layer 7 fireproof coating 71 tip of fireproof coating 8 elastic material 81 tip of elastic material

Claims (2)

(57) [Claims] 1. A fire-resistant construction method between vertically adjacent building units, wherein one of an upper building unit and a lower floor building unit is provided with a leaf spring whose tip faces upward, and the other is used when stacking the building units. The tip is pressed to the refractory layer provided in the building unit of the building unit, and is protruded and fixed to a position where it is elastically deformed, and the refractory covering material covering the framework of the building unit is extended, and the plate is extended by the extension. A fireproof construction method for a unit-type building, comprising: stacking building units after wrapping a tip end of a spring, and pressing an extension of a fireproof covering material to the fireproof layer by the elastic force of the leaf spring. 2. A fire-resistant structure between vertically adjacent building units, wherein a leaf spring whose tip is directed upward is fixed to one of the building unit on the upper floor and the building unit on the lower floor. Part is wrapped by an extension of the fireproof covering material covering the framework of the building unit, and is elastically deformed by being pressed by a fireproof layer provided on the other building unit, The extension of (1) is pressed against the refractory layer by the elastic force of the leaf spring.