JPS63165628A - Refractory structure of floor in building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fireproof structure for buildings suitable for use in buildings of three or more stories, used for apartment complexes, hospitals, hotels, boarding houses, etc. .

(Conventional technology) Flooring materials and girders of buildings of three or more stories, such as condominiums, hospitals, hotels, boarding houses, etc., must have a fire-resistant structure with specified fire-resistance performance, based on the Building Standards Act. .

Therefore, conventionally, as shown in FIG. 6, each girder O1 is covered with a fireproof coating material 02, and the wall material 03 and floor material 0 made of the fireproof coating material 02 and the fireproof material are covered.
4, these girders 01 are covered with fireproof without any gaps, and
A fireproof structure is known in which each floor beam 05 is covered with a fireproof coating material 06 such as a calcium silicate plate, and the floor beam 05 is covered with fireproof coating material 06 and the floor material 04 without any gaps.

By the way, fireproof coating material 02.0 is applied to the main beam 01 and the floor beam 05.
6, as shown in Fig. 6, was not only done by construction, but also spraying of rock wool, etc. was also done by construction. In any case, this was done individually for the main beam O1 and the floor beam 05.

(Problems to be Solved by the Invention) However, in the conventional fireproof structure of the floor, the fireproof covering material 02 is individually applied to the main beam 01 and the floor beams 05.
．． There were problems in that covering with 06 required a lot of materials and was extremely laborious and troublesome.

Furthermore, in the pasting process, it is difficult to affix the fireproof coating material 02.06 to all beams without any gaps, and in the spraying process, it is difficult to apply the fireproof coating material 02.06 to all beams without any gaps. It was difficult to cover all the beams with fireproof coating without any gaps because it was easy to peel off due to contact with other objects.

In addition, when the fireproof covered girders and floor beams are installed in the attic space formed between the floor material 04 and the ceiling material 07, they cannot be easily seen from outside the attic space. I can't do it,
There was also the problem that management was difficult.

(Means for Solving the Problems) The present invention was made for the purpose of solving the above-mentioned problems, and in order to achieve this purpose, in the present invention, the flooring material and the ceiling material are A large beam, a small beam, and a roof edge made of a noncombustible material and made of a fireproof material having a predetermined fireproofing performance are arranged in the attic space formed between the flooring material and the ceiling material, and the above-mentioned The roof verge is fixed to the girder via a noncombustible verge fixture, and the ceiling material is fixed to the verge using a noncombustible fixing member.

(Function) In the fireproof structure of the floor in the building of the present invention, the flooring material and the ceiling material are formed of a fireproof material having a predetermined fireproofing performance, and the main beam, the small beam, and the edge are formed with the flooring material and the ceiling material. Since it is disposed in the attic space formed between the ceiling beams, the large beams, small beams, and verges can be simultaneously covered with fireproofing by the flooring material and the ceiling material.

In addition, fireproofing was not applied directly to the large beams and small beams that were installed in the attic space and could not be easily seen from outside.
Since the flooring and ceiling materials that can be easily seen from outside the attic space are fire-resistant, the fire-resistant structure can be easily managed.

In addition, the main beams, small beams, edge, edge fixings, and ceiling material fixing members are noncombustible, so even if part of the flooring or ceiling material is damaged, it will be safe from fire. .

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In describing this embodiment, a three-story unit building will be taken as an example, and the fireproof structure of the floor will be explained.

First, as shown in FIG. 1, the unit building of this embodiment is constructed by stacking units A in three layers, one above the other.

Each of these units) A has a frame composed of a floor girder 1, a floor beam 2, a ceiling beam 3, a ceiling beam 4, and a column 5, and this frame has a floor material 6, a ceiling material 7, and a wall material. (Outer wall material 8, inner wall material 9, boundary wall material 10) is attached to a box-like structure. - Floor unit A2 is installed on the foundation 11 and bolted to the foundation 11, and roofing material 12 is installed on the third floor A3, which is the top floor.

In addition, the - floor unit) A+ and the second floor unit) A2, and the second floor unit) A2 and the third floor unit) A3, the floor girder 1 of the upper unit) A and the ceiling girder 3 of the lower unit) A are bolted together. are combined.

Furthermore, as shown in Figures 2 and 3, the floor beams 1 and ceiling beams 3 are made of noncombustible material [the floor beams 2 and ceiling beams 4 are made of noncombustible material]. An ono-edge 29 is fixed to the lower surface of the ceiling beam 3 via an ono-edge fixture 28, and an ono-edge 29 is fixed to the lower surface of the ceiling beam 4 via an ono-edge fixture 30. Edge 31 is fixed.

As shown in FIG. 3, the ono-rim 29 is formed in a rectangular shape along the ceiling girder 3, and the ono-rim 31 is arranged in the shape of a lattice frame with the ono-rim 29 as a frame.

These Ono-rim 29 and Ono-rim 31 are made of non-combustible steel material, have an opening shape in cross section, and have an upper opening 291, respectively.
, 311 are formed with downwardly bent pieces 292, 312.

As shown in FIG. 4, the Ohnoen fixture 28 is made of non-combustible steel, and is provided with a fixing plate part 282 on one side of a rectangular base plate 281, which is fixed to the ceiling beam 3 by welding or the like. ,
A small insertion part 283 that is inserted into the upper opening 291 of the Ono-rim 31 is provided on one side facing the fixing plate part 282, and the upper opening 291 of the Ono-rim 29 is provided on the remaining two sides.
A large insertion portion 284 is provided to be inserted into. And these small inserts! 283 and the left and right sides of the large insertion portion 284 are locking pieces 28 that are locked to the bent pieces 312 and 292 when inserted into the Ono-rim 31 or the Ono-rim 29, respectively.
3a and 284a are formed.

As shown in FIG. 5, the Ono-rim fixture 30 is made of noncombustible steel, and a rectangular board 301 is directly connected to the ceiling beam 4.
It is fixed to the lower surface of the board 301 by welding or the like, and small insertion parts 302 are provided on the four sides of the board 301. Locking pieces 302a are formed on both left and right sides of the small insertion portions 302 to be locked to the bent pieces 312 of the Ono edge 31.

The floor material 6 is made of a fire-resistant material with a fire resistance time of 1 hour or more (according to JIS A 1304 fire resistance test method for building structural parts), such as a hard wood chip cement board with a thickness of 18 mm, and is made of a fire-resistant material such as a hard wood cement board with a thickness of 18 mm. is fastened directly to the top surface of the A floor spanning material 15 formed of the same material as the flooring material 6 is provided in close contact with the flooring material 6 at the unit crossing portion of the flooring material 6.

The ceiling material 7 is, for example, a 25 mm thick asbestos calcium silicate plate with a fire resistance time of 1 hour or more (JIS A 1304
It is made of a fire-resistant material (according to the fire resistance test method for building structural parts), and is fixed to the Ono-rim 29 and Ono-rim 31 with tapping screws 16 made of non-combustible steel. A ceiling spanning material 17 formed of the same material as the ceiling material 7 is provided at the unit crossing portion of the ceiling material 7 in close contact with the ceiling material 7.

That is, as shown in FIG. 2, in unit A on the fourth floor, the flooring material 6 and the ceiling material 7 are continuously provided on the same plane via the floor spanning material 15 and the ceiling spanning material 17.

Therefore, between the - floor unit) A+ and the second floor unit) A2 and between the second floor unit) A2 and the third floor unit) A3, an attic space 21 is formed by the flooring material 6 and the ceiling material 7. In the attic space 21, the floor girder 1 and the floor beam 2 of the upper unit A, the ceiling girder 3 and the ceiling beam 4 of the lower unit A, and the ono edge and the ono edge are arranged.

The exterior wall material 8 is made of a fire-resistant material with a fire-resistance time of 2 hours or more (according to JIS A 1304 fire-resistance test method for building structural parts), such as ALC board with a thickness of 100 mm, and is attached to the ceiling beam 3 through rock wool 18. It has been concluded.

Incidentally, the unit crossing portions of this exterior wall material 8 are caulked with fireproof material, and the joints between the exterior wall material 8 and the floor material 6, and between the exterior wall material 8 and the ceiling material 7 are filled with rock wool 19.20. It is closely followed by this.

The parting wall material 10 partitions the space for each month, and as shown in FIG. It is divided into a material 102.

The upper boundary wall material 101 is made of, for example, a laminate of 30 mm thick rock wool felt and 8 mm thick alumina arcade fiber, or a 25 mm thick asbestos silicon calcium board, etc. with a fire resistance time of 1 hour or more. (JISA1304
The ceiling spanning material 17 and the floor spanning material are made of a fire-resistant material (according to the fire resistance test method for building structural parts).

It is installed upright between it and the material 15. In addition, this upper parting wall material 1
01 is fixed to the floor girder 1 and the ceiling girder 3, respectively, and when the unit) A is fastened vertically, the upper parting wall material 101 fixed to the floor girder 1 of the upper unit) A and the lower side Unit) Upper parting wall material lO1 fixed to ceiling girder 3 of A
are continuous, and the attic space 2 is formed between both units) A.
It is designed to divide 1.

Further, in the lower parting wall material 102, a gypsum board 22 with a thickness of 12 mm is fixed to one side of a stud 26 made of lightweight steel frame, and a gypsum board 23 containing glass m fibers with a thickness of 30 mm is fixed to the other side. Fire resistance time of 1 hour or more (J
IS A 1304 Fire resistance test method for building structural parts)
2 are erected on both sides of the ceiling spanning material 17, and studs 26 are fixed to the pillars 5 coated with fireproof coating.

The inner wall material 9 is made of a noncombustible material such as gypsum board, and is fixed to the fireproof coated column 5 via a frame 24.

Incidentally, a heat insulating material 25 such as glass wool is attached to the inner surface of the inner wall material 9.

Next, the operation of the embodiment will be explained.

As explained above, between the - floor unit) A+ and the second floor unit) A2, and between the second floor unit) A2 and the third floor unit A3, there is a gap between the flooring 6 of the upper unit) A and the lower unit). An attic space 21 is formed with the ceiling material 7 of A, and since these flooring materials 6 and ceiling materials 7 are all made of fire-resistant material, the upper side disposed in the above-mentioned attic space 21 Unit) A's floor girder 1 and floor girder 2, lower unit) A's ceiling girder 3 and ceiling girder 4, and the ono edge and ono edge are simultaneously covered with fireproof material, When the entire structure is viewed as a floor, this floor has a fire resistance performance of 1 hour or more (according to JIS A 1304 fire resistance test method for building structural parts). Therefore, by connecting unit A to each other, the floor girder 1 and floor girder 2 of unit A on the upper side and the ceiling girder 3 and ceiling girder 4 of unit A on the lower side are coated with fireproof. Compared to the structure where beams are individually coated with fireproof coatings, materials can be reduced and labor can be saved.

Moreover, since the flooring material 6 and the ceiling material 7, which can be easily seen even from outside the attic space 21 after the unit building is completed, are fire-resistant, the fire-resistant structure can be easily managed.

In addition, since the indoor space 27 is partitioned into each unit by the lower parting wall material 102, even if a fire breaks out in the indoor space 27 of a certain door, the lower parting wall material lO2 blocks the fire, and the next door Fire can be prevented from entering the door.

Furthermore, since the attic space 21 is partitioned into each unit by the upper parting wall material 101, in the event of a fire, the flooring material 6 or ceiling material 7 in a certain door should be damaged, and the indoor space 27
Even if a fire invades the attic space 21 from above, the upper parting wall material 101 blocks the fire and prevents the fire from entering the attic space 21.
This prevents fire from entering the adjacent door.

Furthermore, even if part of the flooring material 6 or ceiling material 7 is damaged, the floor girder 1. Ceiling girder 3. Floor beam 2. Ceiling beam 4
．． Ohnoen 29. Onoen 31. Ohnoen fixing metal fittings 28. Onoen fixing metal fittings 30. Since the tapping screw 16 is made of a non-combustible material, it has fire resistance and is highly safe.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, in the example, the fireproof structure was applied to a three-story unit building, but it may also be applied to a one-story, two-story, four-story or more unit building, or a steel frame structure other than a unit building. It may also be applied to buildings, etc.

Furthermore, the flooring and ceiling materials may be made of fireproof materials other than those in the examples as long as they have a predetermined fireproofing performance, and a sound insulation sheet or heat insulating material may be added in addition to the fireproof material.

Furthermore, when fixing the ceiling material to the roof edge, a nonflammable adhesive may be used together with the tapping screws. Furthermore, fixing members other than tapping screws may be used as long as they are nonflammable.

(Effects of the Invention) As explained above, in the fireproof structure of a building according to the present invention, the large beams, small beams, and verges are collectively covered with fireproof materials by the ceiling material and the floor material. Therefore, compared to covering the large beams and small beams individually, the material can be reduced, the work time can be shortened, and the support structure of the ceiling by the roof edge can be made more reliable. .

Furthermore, since the ceiling material and floor material are fire-resistant, which can be easily seen even from outside the attic space, the fire-resistant structure can be easily managed.

In addition, the main beams, small beams, edge, edge fixings, and ceiling material fixing members are noncombustible, so even if part of the flooring or ceiling material is damaged, it will be safe from fire. .

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a longitudinal sectional view showing a unit building according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view showing a fireproof structure of a floor in a unit building according to an embodiment, and Fig. 3 is a longitudinal sectional view showing a unit building according to an embodiment of the present invention. A perspective view showing an example structure,
Fig. 4 is a perspective view showing the main part X in Fig. 3, Fig. 5 is a perspective view showing the main part Y in Fig. 3, and Fig. 6 is a longitudinal sectional view showing the fireproof structure of the floor in a conventional building. It is. 1... Floor beam (large beam) 2... Floor beam (small beam) 3... Ceiling beam (large beam) 4... Ceiling small beam (small beam) 6... Floor material 7... Ceiling material 16... Tapping screw (nonflammable fixing member) 21.
... Attic space 28... Ono edge fixture (no edge) 29... Ono edge (no edge) 30... Ono edge fixing device (no edge) 31... Ono edge (no edge) Special Applicant Figure 5

Claims (1)

[Claims] 1) An attic in which the flooring and ceiling materials are made of fire-resistant material having a predetermined fire-retardant performance, and large beams, small beams, and wild edges made of non-combustible materials are formed between the flooring and ceiling materials. A building that is arranged in a space, the roof edge is fixed to the girder via a noncombustible fence fixing device, and the ceiling material is fixed to the roof edge with a noncombustible fixing member. Fireproof construction of floors in objects.