JPH02308037A - Ceiling frame of chamfered building unit - Google Patents

Abstract

PURPOSE:To promote the work efficiency in assembly and to secure easily the rigidity of joining sections by joining a horizontal frame section on a longer column side to an inclined frame section on a shorter column side after the horizontal frame and the inclined frame are separately assembled in advance. CONSTITUTION:In a chamfered building unit 12, a longer column 22 and shorter column 23 are erected to the ends of a lower beam 21 of which a floor 20 consists, and an upper beam 24 is constructed over each of the upper parts of both columns. A horizontal beam section 24A and inclined beam section 24B of the upper beam 24 are joined through connecting pieces 24C and 24D constituted of two curved L shaped steels of up and down, and a ceiling frame 125 of which a ceiling structural body 25 consists is constructed together with the upper beam 24. A horizontal ceiling construction 25A is constituted of the ceiling structural body 25, horizontal beam section 24A and horizontal frame section 125A, and an inclined ceiling structural body 25B is constituted of the inclined beam section 24B and inclined frame section 125B. In both frame sections, after they are separately assembled in advance, they are joined with a bolt 300, and the ceiling frame 125 is constituted.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a ceiling frame for a chamfered building unit.

[Prior Art] Generally, a unit building is constructed by integrating a plurality of substantially rectangular parallelepiped building units. In this unit building,
For example, in order to comply with diagonal line restrictions in terms of construction, it is necessary to arrange the building units on the upper floor to be set back from the building units on the lower floor (set pack). In this case, there is a disadvantage that the ratio of the total area to the site area (floor area ratio) becomes small.

Therefore, in order to construct a unit building that can accommodate diagonal line restrictions and the like without reducing the floor area ratio, it is conceivable to use a chamfered building unit that can form a sloped roof. In other words, the chamfered building unit proposed by the applicant in Japanese Patent Application No. 196996/1986 has long columns and short columns erected on opposing side edges of the floor, and A ceiling frame is spanned between each upper end of the ceiling frame, and the long column side part of the ceiling frame is a horizontal frame part, and the short column side part is an slanted frame part.This chamfered building unit is used. If so, a sloped roof can be formed at the upper part of the sloped ceiling structure constituted by the sloped frame, and this sloped roof can be arranged so as to slope downward toward the site boundary line. By doing so, it is possible to comply with the architecture's diagonal line restriction, etc., without reducing the floor area ratio of the building.

[Problems to be Solved by the Invention] However, in the above-mentioned ceiling frame constituting the chamfered building unit, the horizontal frame portion and the inclined frame portion, which mutually form intersecting frame surfaces, are separated by a single unit. Since it is provided in one frame through multiple steps, there are disadvantages between (1) and (2) below.

■Poor assembly workability.

■It is difficult to ensure the rigidity of the connecting portion between the horizontal frame portion and the inclined frame portion.

The present invention improves the assembly work efficiency and relatively easily increases the rigidity of the connecting portion between the horizontal frame portion and the sloped frame portion when configuring the ceiling frame of a chamfered building unit that can form a sloped roof portion. The purpose is to ensure that

[Means for Solving the Problems] The present invention provides a ceiling frame for use in a chamfered building unit that spans between the upper ends of long columns and short columns that are erected at opposing side edges of a floor. , the horizontal frame part located on the long pillar side and the slanted frame part located on the short pillar side, which are separately assembled in advance into a horizontal frame part and an inclined frame part, are joined together. This is what I did.

[Function] In the present invention, the horizontal frame portion and the inclined frame portion are assembled separately in advance, and then the horizontal frame portion and the inclined frame portion are joined with bolts or the like. It has the following effects.

■After assembling the planar horizontal frame part and the inclined frame part in advance, the assembled horizontal frame part and the inclined frame part are simply joined, so the assembly work is easy. .

■The connecting part between the horizontal frame part and the inclined frame part overlaps with the constituent frame materials of both frame parts to form a reinforcing beam with a large moment of inertia, making it relatively easy to ensure high rigidity. Possible - [Example] Fig. 1 is a perspective view showing an example of a chamfered building unit, Fig. 2 is a schematic diagram showing a joint structure of a horizontal beam part and an inclined beam part,
FIG. 3 is a schematic diagram showing a ceiling frame, FIG. 4 is a schematic diagram showing a joint between a horizontal frame part and an inclined frame part,
FIG. 5 is a perspective view showing an example of a unit building, FIG. 6 is a side view of FIG. 5, and FIG. 7 is a schematic diagram showing a building unit.

The unit building 10 shown in FIGS. 5 and 6 is a normal building unit 11 as shown in FIG. Chamfered building unit 12,
It is constructed by integrating narrow building units 13. Here, the upper floor portion of the unit building 10 facing the road is composed of a chamfered building unit 12 and a narrow building unit 13,
A narrow building unit 13 is juxtaposed on the side of the chamfered building unit 12.

Normally, the building unit 11 has a rectangular parallelepiped shape, and as shown in FIG. are erected, and an upper beam 17 is spanned between the upper ends of opposing long columns 16. The upper beam 17 constitutes a horizontal ceiling structure 18.

A horizontal roof portion 19 is formed on the ceiling structure 18 of the normal building unit 11 constituting the upper floor portion. In addition, 11
5 is a lower beam that together with the lower beam 15 constitutes the floor 14; and 117 is an upper beam that constitutes the ceiling structure 18 together with the upper beam 17.

As shown in FIG. 1, FIG. 2, and FIG. Long columns 22 and short columns 23 made of steel pipes are erected, and an upper gauze 24 is spanned between the upper ends of the long columns 22 and short columns 23. The height of the long columns 22 is usually the same as the long columns 16 of the building unit 11. The upper beam 24 includes a horizontal beam section 24A made of channel steel and an inclined beam section 24B made of channel steel. The horizontal beam portion 24A and the inclined beam portion 24B are a connecting piece 24C12 made of two bent L-beams, upper and lower.
They are joined via 4D. Opposing long columns 22 and 22
A ceiling frame 125, which together with the upper beam 24 constitutes a ceiling structure 25, is spanned between the short columns 23 and 23 and the upper beams 24 and 24, respectively. At this time, ceiling frame 1
25 is a horizontal frame portion 125A located on the side of the long column 22 and the horizontal beam portion 24A, and a short column 23 and the inclined beam portion 24.
and a slanted frame portion 125B located on the B side. As a result, the ceiling structure 25 has horizontal beam portions 2
4A and the horizontal frame portion 125A constitute a horizontal ceiling structure portion 25A, and the inclined beam portion 24B and the inclined frame portion 125B constitute a sloped ceiling structure portion 25B.

A horizontal roof portion 26 is formed on the horizontal ceiling structure portion 25A of the chamfered building unit 12, and a sloped roof portion 27 is formed on the sloped ceiling structure portion 25B. The sloping roof portion 27 is arranged so as to slope downward toward the road side. Note that 121 is a lower beam that together with the lower beam 21 constitutes the floor 20, 28 is a floor joist, and 29 is a ceiling joist. Also, 10
1 is a lower beam 21.12 provided at the lower end of the column 22.23
1, the channel steel connection piece 102 is an upper beam 24 provided at the upper end of the column 22.23, an upper beam 124A (described later) of the horizontal frame portion 125A, and an upper beam 124B (described later) of the inclined frame portion 125B. This is a channel steel connecting piece.

The narrow building unit 13 has a narrow width a that is the same as the width a of the horizontal ceiling structure 25A of the chamfered building unit 12, and has a narrow width a that is the same as the width a of the horizontal ceiling structure 25A of the chamfered building unit 12, and is made of shaped steel that forms the opposing side edges of the floor 30. Steel pipe long columns 32 are erected at both ends of the lower beam 31, and an upper beam 33 is spanned between the upper ends of the opposing long columns 32.

The height of the long pillar 32 is usually the same as that of the long pillar 16 of the building unit 11 and the long pillar 22 of the chamfered building unit 12. Upper beam 33
constitutes a horizontal ceiling structure 34.

A horizontal roof portion 35 is formed on the ceiling structure 34 of the narrow building unit 13. 131 is a lower beam that constitutes the floor 30 together with the lower beam 31; 133 is the ceiling structure 34 together with the upper beam 33;
This is the upper beam that makes up the structure.

In addition, in the unit building 10, the chamfered building unit 1
A skylight 36 that can be opened and closed is installed on the sloped roof part 27 of No. 2,
Provides lighting and ventilation.

Therefore, in the chamfered building unit 12, the upper beam 24
The horizontal beam portion 24A and the inclined beam portion 24B that constitute the
As mentioned above, they are joined as follows via the upper and lower connecting pieces 24C and 124D made of bent L-shaped steel. That is, as shown in FIG. 2, the upper flange inner surface and web inner surface of the horizontal beam section 24A are overlapped and joined by welding to one end of the upper connecting piece 24C, and the slanted inner surface is welded to the other end of the upper connecting piece 24C. The inner surface of the upper flange and the inner surface of the web of the beam portion 24B are joined together by welding. Also, lower connection piece 2
The lower flange inner surface and web inner surface of the horizontal beam section 24A are welded to one end of the horizontal beam section 24A, and the lower connecting piece 2
The inner surface of the lower flange and the inner surface of the web of the inclined beam portion 24B are overlapped and joined by welding to the other end portion 4D.

Furthermore, in the chamfered building unit 12, the ceiling frame 125 that constitutes the ceiling structure 25 together with the upper beam 24,
As mentioned above, it is composed of the horizontal frame part 125A and the inclined frame part 125B. That is, the horizontal frame portion 125A and the inclined frame portion 125B are assembled separately in advance, and then the horizontal frame portion 125A is assembled separately.
The ceiling frame 125 is constructed by joining the and inclined frame portion 125B with bolts 300. At this time, as shown in FIGS. 3 and 4, the horizontal frame portion 125A consists of a channel steel upper beam 124A, a channel steel connecting piece 224A, and ceiling joists nailed to both houses 124A and 224A. It consists of 29. In addition, as shown in FIGS. 3 and 4, the inclined frame portion 125B includes an upper beam 124B made of channel steel, a connecting beam 224B made of L-shaped steel, and a connecting beam 124B made of L-shaped steel.
The ceiling joists 29 are nailed to 24B and 224B. In FIG. 4, 301 is a nail and 302 is a ceiling panel material.

As shown in FIG. 2(A), an L metal fitting 200 is welded to the inner surface of the above-mentioned upper and lower connection pieces 24C, 24D, and to this L metal fitting 200, the above-mentioned connecting beam 224A of the ceiling frame 125, 224B is designed to be bolted together.

Next, the operation of the above embodiment will be explained.

According to the above-mentioned unit building 10, since the chamfered building unit 12 and the narrow width building unit 13 are installed on the upper floor, they give a change in the external design and easily comply with the diagonal line restrictions etc. of the Architecture Pope. , it can also be moved closer to the property line.

Further, according to the unit building 10, the front part of the narrow building unit 13 is wider than the front part of the chamfered building unit 12.
It is set back (set pack) by the same width as the width of the slanted ceiling structure 25B, and the space created by this setback can be used as a balcony 37.

At this time, in the above embodiment, the ceiling structure of the chamfered building unit 12 existing on one side of the space of the veranda 37 is a sloped ceiling structure 25B that slopes downward toward the front. Therefore, the degree to which the sloping roof portion 27 provided on the ceiling structure portion 25B of the chamfered building unit 12 obstructs the sunlight and wind into the balcony 37 is reduced. That is, when forming the balcony 37 in the unit building 10, the lighting and ventilation to the balcony 37 can be improved.

Furthermore, in the unit building 10, after the horizontal frame portion 125A and the inclined frame portion 125B are assembled separately in advance, the horizontal frame portion 125A and the inclined frame portion 125B are joined with bolts 300. Therefore, it has the following effects (1) and (2).

■After assembling the planar horizontal frame portion 125A and the inclined frame portion 125B in advance,
Since the assembled horizontal frame portion 125A and inclined frame portion 125B are simply joined together, the assembly workability is good.

■Horizontal frame portion 125A and inclined frame portion 125
In the connecting part B, the channel steel connecting beam 224A and the L-shaped steel connecting beam 224B, which are the constituent frame members of both frame parts 125A and 125B, overlap each other to form a reinforcing beam with a large moment of inertia. Therefore, high rigidity can be ensured relatively easily.

In the above embodiment, the horizontal frame portion 125A becomes the horizontal frame portion of the present invention with the horizontal beam portions 24A sub-assembled on both sides thereof, and the inclined frame portion 1
The slanted beam portion 24B may be sub-assembled on both sides of the slanted frame portion 25B to form the slanted frame portion of the present invention.

[Effects of the Invention] As described above, according to the present invention, when constructing a ceiling frame of a chamfered building unit that can form a sloped roof,
Assembling workability is improved, and the rigidity of the connecting portion between the horizontal frame portion and the inclined frame portion can be ensured relatively easily.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a chamfered building unit, Fig. 2 is a schematic diagram showing a joint structure between a horizontal beam part and an inclined beam part,
FIG. 3 is a schematic diagram showing a ceiling frame, FIG. 4 is a schematic diagram showing a joint between a horizontal frame part and an inclined frame part,
FIG. 5 is a perspective view showing an example of a unit building, FIG. 6 is a side view of FIG. 5, and FIG. 7 is a schematic diagram showing a building unit. 12... Chamfered building unit, 20-- Floor, 22... Long column, 23... Short column, 125... Ceiling frame, 125A... Horizontal frame portion, 125B... Inclined shaped frame part, 300... bolts. Patent applicant Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 1 Figure 1 (Jl Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) In a ceiling frame used in a chamfered building unit that spans between the upper ends of long columns and short columns erected on opposite side edges of the floor, a horizontal frame portion and an inclined frame portion A chamfered building unit characterized in that it is constructed by joining together a horizontal frame part located on the long column side and an inclined frame part located on the short column side, which are separately assembled in advance. ceiling frame.