JPH07305428A - Fireproof structure of building unit - Google Patents

Abstract

PURPOSE:To facilitate handling of a fireproof member within a narrow building unit and make the fitting work efficient, by dividing a hard fireproof material fitted to a column into a plurality of parts in the lengthwise direction and making the upper side materials longer than the lower side materials. CONSTITUTION:In a fireproof structure of a building unit constituted of column 1, girders 20, 20, 30, 30, hard fireproof materials 2, 3 fitted to the column 1 are longitudinally divided into a plurality of parts. Hard fireproof materials 3B, 4B fitted to the upper side of the column 1 are made shorter than the hard fireproof materials 3A, 4A fitted to the lower side thereof. Moreover, a soft fireproof material 8 is interposed between these hard fireproof materials 2, 3A, 3B, 4A, 4B. It is preferable that a part in the thickness direction is mutually superposed, in the mutual joints of these hard fireproof materials 2, 3A, 3B, 4A, 4B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure for a building unit, in which columns constituting the building unit are fireproof coated.

[0002]

BACKGROUND ART When building a unit-type building by combining building units, particularly in the case of an apartment house, it is legally required to have a fireproof structure in which columns and beams, which are structural materials of the unit-type building, are fireproof coated. In the conventional fireproof structure of a unit type building, for example, a hard fireproof material such as a calcium silicate plate is attached so as to cover the surfaces of columns and beams which are structural materials. And the hard refractory material attached to the pillar was thin according to the shape of the pillar, and the length of the pillar was the same.

[0003]

However, as described above, the hard refractory calcium silicate plate to be attached to the column is fragile in its material and has an elongated shape, so that it is relatively easily damaged. Therefore, there is a problem in that, when a collision is made with another member or the like when handling it in a narrow building unit in a factory, it is easily damaged by the impact of the collision. Further, as described above, when a single hard refractory material having the same length as the pillar was used as the hard refractory material, it was difficult to perform the mounting work in the narrow building unit.

It is an object of the present invention to provide a fireproof structure for a building unit which can prevent damage accidents of a hard refractory material which is likely to occur during handling in a narrow building unit, and which can be efficiently attached to a pillar. It is in.

[0005]

The present invention is characterized in that, in a fireproof structure of a building unit including columns and beams, a hard refractory material attached to the columns is divided into a plurality of pieces in the longitudinal direction. The hard refractory material may be divided into two parts, and the hard refractory material attached to the upper side of the column may be shorter than the hard refractory material attached to the lower side of the column. A soft refractory material may be interposed between the plurality of hard refractory materials.
The joint portion between the plurality of hard refractory materials may be configured such that portions thereof overlap each other in the thickness direction of the hard refractory material.

[0006]

In the fireproof structure of the building unit of the present invention,
Since the hard refractory material to be installed on the pillar is divided into multiple pieces in the longitudinal direction, the individual length of the hard refractory material is shorter than the conventional single non-divided hard refractory material, which makes it easier to handle, resulting in installation work. Can be done efficiently. Therefore,
When handling in a narrow work space in a building unit, it is possible to prevent an accident in which a hard refractory material is accidentally collided with a surrounding member and damaged as in the conventional case.

Further, when the hard refractory material is divided into two parts, and the hard refractory material to be mounted on the upper side of the pillar where the mounting work is difficult to perform is made shorter than the hard refractory material to be mounted on the lower side of the pillar,
It is easy to handle in a narrow building unit and can be efficiently installed on a pillar. Further, when a soft refractory material is interposed between a plurality of hard refractory materials, a continuous fireproof structure with no gap can be obtained. Further, when the joint portions of a plurality of hard refractory materials are joined by overlapping each other in the thickness direction of the hard refractory material, the fire resistance performance of the joint portions can be further improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fireproof structure for a building unit according to an embodiment of the present invention will be described below with reference to FIGS. In the overall perspective view of the building unit in FIG. 1, the skeleton of the building unit A includes four pillars 1 arranged at four corners, four floor beams 20 connecting the lower ends of these pillars 1 and upper ends thereof. It is composed of four ceiling beams 30 that are joined together. In this figure, only the frame made of only structural materials (column 1, floor beam 20, ceiling beam 30) is shown, but in the frame of the building unit manufacturing plant, the frame, wall panel, ceiling panel, floor panel not shown in the figure are shown. Etc. are attached.

As shown in the perspective view of the main part of FIG. 2 and the sectional view of the main part of FIG. 3, the hard refractory material 2 is spread over the entire inner surfaces 1A and 1B adjacent to each other on the inner surface of the building unit of the pillar 1. It is attached using an adhesive. Each inner surface 1A, 1
The hard refractory material 2 attached to B is divided into two in the longitudinal direction (upper and lower as shown in the figure), and the inner surface 1A,
It is composed of an elongated face material corresponding to 1B. In particular, of the hard fireproof materials 2 divided into two, the upper hard fireproof materials 3A and 3B attached to the upper side of the pillar 1 are configured to be shorter than the lower hard fireproof materials 4A and 4B attached to the lower side of the pillar 1. There is. The hard refractory material 2 is attached to the pillar 1 by means of the upper hard refractory material 3A attached to the inner side surface 1A on the upper side of the pillar 1 and the upper hard refractory material 3B attached to the inner side surface 1B.
The lower hard refractory material 4A to be attached to the lower inner side surface 1A and the lower hard refractory material 4B to be attached to the inner side surface 1B are respectively joined at right angles with nails, and then adhesive is used. As shown in FIG. 3, outer wall panels 5, 6, 7 made of lightweight cellular concrete having fire resistance are attached to the outer surface of the pillar 1,
The entire length of the pillar 1 is fireproof coated.

According to the above-mentioned embodiment, since the hard refractory material attached to the pillar 1 is divided into two parts, it is easier to handle than the conventional one which has the same length as the pillar 1.
In the narrow building unit A, it is possible to prevent the brittle hard refractory material 2 made of a calcium silicate plate from accidentally colliding with the surrounding objects and being damaged. In particular, in this embodiment,
The length of the upper hard refractory material 3A, 3B is set to the lower hard refractory material 4
Since it is shorter than A and 4B, it is difficult to mount the hard refractory material 2 on the upper hard refractory material 3 at a high position of the pillar 1.
Installation work for A and 3B can be done easily.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and various improvements and design changes are made without departing from the gist of the present invention. Is possible. As an example,
Upper hard refractory material 3 which is a hard refractory material as shown in FIG.
A soft refractory material 8 made of rock wool or ceramic fiber is attached to the lower end surfaces 3C and 3D of A and 3B, and the soft refractory material 8 is attached to the lower hard refractory materials 4A and 4A.
The upper hard refractory material 3A, 3B so that it is pressed against B.
The fireproof coating structure of the pillar 1 can be surely made into a continuous structure with no gaps by mounting the structure on the pillar 1.

In FIG. 4 showing another modification, upper hard refractory materials 13A and 13B and lower hard refractory materials 14A and 1A of the hard refractory material 12 attached to the inner side surfaces 1A and 1B of the pillar 1 are shown.
The joint portion X with 4B is configured such that portions thereof overlap each other in the thickness direction of the hard refractory material 12.
That is, in this joint X, each hard refractory material 13
A thin plate-shaped convex portion 1 is provided at the end of A, 13B, 14A, 14B.
5A and 15B and stepped portions 16A and 16B for providing the convex portions 15A and 15B are formed.
Since A and 15B and the step portions 16A and 16B are fitted and joined to each other, the fire resistance performance of the joint portion X can be further enhanced.

[0013]

As described above, according to the fireproof structure for a building unit of the present invention, it is possible to prevent damage to a hard refractory material that is likely to occur during handling in a narrow building unit, and to efficiently install the work on a pillar. You can do it.

[Brief description of drawings]

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

FIG. 2 is a perspective view of a main part according to the embodiment.

FIG. 3 is a cross-sectional view of essential parts according to the embodiment.

FIG. 4 is a perspective view of a main part showing a modified example.

[Explanation of symbols]

A building unit 1 pillar 1A, 1B inner surface 2 hard refractory material (calcium silicate plate) 3A, 3B, 13A, 13B upper hard refractory material 4A, 4B, 14A, 14B lower hard refractory material 8 soft refractory material X joint 15A , 15B Convex portion 16A, 16B Stepped portion

Claims (4)

[Claims] 1. A fireproof structure for a building unit, comprising a pillar and a beam, wherein a hard refractory material attached to the pillar is divided into a plurality of pieces in the longitudinal direction. 2. The fireproof structure for a building unit according to claim 1, wherein the hard refractory material is divided into two parts, and the hard refractory material attached to the upper side of the pillar is more than the hard refractory material attached to the lower side of the pillar. Fireproof structure for building units characterized by being made short. 3. The fire resistant structure for a building unit according to claim 1 or 2, wherein a soft fire resistant material is interposed between the plurality of hard fire resistant materials. 4. The fireproof structure for a building unit according to claim 1, wherein the joint portions of the plurality of hard refractory materials are partially overlapped with each other in the thickness direction of the hard refractory material. Fireproof structure of the building unit, which is characterized by that.