JP3315745B2 - Setback building units - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a setback building unit which is a component of a unit building.

[0002]

BACKGROUND ART FIG. 7 shows a skeleton of a setback building unit 1. This frame is composed of two long side lower beams 2 and short side lower beams 3, four columns 4, and two long side upper beams 5 and short side upper beams 6, each having a total of four beams. The lower beams 2 and 3 are arranged in a square shape, and out of the total of four columns 4, two columns 4 are lower beams 2 and 3.
And the remaining two pillars 4 are provided in the middle of the short side lower beam 3 in the longitudinal direction, and a total of four upper beams 5 and 6 are squarely formed at the upper ends of these pillars 4. It is arranged. The joints between the lower beams 2, 3 and the columns 4 and the joints between the columns 4 and the upper beams 5, 6 are rigidly joined by welding.

FIG. 8 shows a skeleton of a building unit (hereinafter referred to as a basic building unit) 11 used in combination with the setback building unit 1 as a basic component of a unit building. This frame is composed of two long-side lower beams 12 and short-side lower beams 13 arranged in a quadrangular shape, and four pillars 14 disposed at a joint portion of these lower beams 12 and 13.
And two long-side upper beams 15 and short-side upper beams 16 arranged in a square at the upper ends of the pillars 14, and the basic building unit 11 has a rectangular parallelepiped shape. Each joint between the lower beams 12, 13 and the column 14 and each joint between the column 14 and the upper beams 15, 16 are rigid joints by welding.

[0004] The long beam 2 on the long side of the setback building unit 1
Corresponds to the lengths of the long side lower beam 12 and the long side upper beam 15 of the basic building unit 11, and the length of the short side lower beam 3 of the setback building unit 1 is the short side lower beam of the basic building unit 11. 1
3. The length of the short side upper beam 16 corresponds to the length of the column 4 of the setback building unit 1 and the length of the column 14 of the basic building unit 11 corresponds to the length.

FIG. 9 shows a unit building constructed by combining a plurality of basic building units and setback building units. This unit-type building includes first-floor basic building units 11A and 11B mounted and fixed on a foundation 9,
The building unit includes a second-floor building unit 11C placed on the building unit 11A and a second-floor setback building unit 1 placed on the building unit 11B. It is joined while being positioned with respect to each other by a plate-like joining member 10 provided at the location. The unit-type building satisfies the so-called northern oblique line restriction by the setback building unit 1.

[0006]

When a lateral load W is applied to this unit-type building due to, for example, an earthquake, a typhoon wind, or the like, the basic building unit 11C for the second floor and the setback building unit 1 have two frames. Deforms as shown by the dashed line. The interval between the two pillars 4 arranged in the longitudinal direction of the short side lower beam 3 of the setback building unit 1 is equal to the two columns arranged in the longitudinal direction of the short side lower beam 13 of the second floor building unit 11C. Since it is shorter than the interval between the pillars 14, the rigidity of the setback building unit 1 is larger than the rigidity of the basic building unit 11C. Therefore, the lateral load W is the setback building unit 1
And the basic building unit 11C are not evenly supported, and the load-bearing ratio is different between the two building units 1 and 11C, so that there is a problem that the entire unit-type building cannot support a reasonable load.

SUMMARY OF THE INVENTION An object of the present invention is to provide a unit-type building constructed by combining a plurality of building units when a lateral load is applied to the unit-type building. There is a need to provide a setback building unit that can achieve support.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a rectangular arrangement is provided.
Four lower beams and two lower beams are connected to the joint between the lower beams.
And two of them are arranged in the middle of the lower beam in the longitudinal direction.
Pillars and four squares arranged at the top of these pillars
Setback building with a skeleton formed including the upper beam
In the unit, the lower beam of the joint between the beam and the column
Two pillars arranged along the length and joined to them
The joint with the upper beam is a pin joint, and the other joints are rigid joints.
It is characterized by having done.

[0009] In the above description, the pin connection between the beam and the column only needs to have a bonding strength smaller than that of the rigid connection in structural mechanics. It is not limited to a pin such as a single bolt, but may be any pin that is substantially recognized as a pin joint in structural mechanics.

[0010] The joining strength of the pin joint is determined in accordance with the distance between two columns arranged in the longitudinal direction of the lower beam, whereby the rigidity of the setback building unit against the lateral load and the rigidity of the basic building unit are determined. The rigidity is set to be the same or almost the same.

[0011]

According to the present invention, since some of the joints between the beams and the columns constituting the framework of the setback building unit are pin-joined, a comparison is made with all joints being rigidly joined. Therefore, the rigidity of the setback building unit with respect to the lateral load is reduced. For this reason, when a unit-type building is constructed by combining a set-back building unit and a basic building unit, the rigidity of the set-back building unit and the basic building unit with respect to the lateral load can be made the same or almost the same. Can be performed evenly or almost evenly in these building units, and the load can be rationally supported in the entire unit-type building.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, the same members as those already described are denoted by the same reference numerals, and the description thereof will be simplified or omitted. FIG. 1 shows a unit-type building constructed by combining a setback building unit 1 'according to the present embodiment with basic building units 11A, 11B and 11C. Of the four pillars 4 of the setback building unit 1 ′, the lower side lower beam 3
The two pillars 4 arranged in the middle of the length direction are connected to the short side lower beam 3 via a connecting member 20.
Is for pin-joining the short side lower beam 3 and the column 4.

2 to 6 show embodiments of the connecting member 20. FIG. The pillar 4 is made of a square tube, and the lower beam 3 is an upper and lower flange 3.
A, 3B, and a channel material having a web 3C.
2 includes an upper plate portion 21A and a bottom plate portion 21B.
And a side plate 21C provided at a side end of the upper plate 21A and the bottom plate 21B, and a reinforcing plate 21D provided at the center of the upper plate 21A and the bottom plate 21B. The upper plate 21A is welded to the lower surface of the column 4, and the bottom plate 21B is joined to the upper flange 3A of the lower beam 3 with two bolts 22 and nuts.

In FIG. 3, a receiving member 23 formed by cutting the channel material into a short length is attached to the lower beam 3 by welding, and a coupling plate 24 is attached to the receiving member 23 and one side surface of the column 4. It is applied and joined by welding. In FIG. 4, a base plate 25 is attached to the lower end of the pillar 4 by welding, and the base plate 25 is connected to the upper flange 3A of the lower beam 3 with two bolts 26 and nuts.

In FIG. 5, a bottom plate 27 is attached to the lower end opening of the pillar 4 by welding, and the bottom plate 27 and the upper flange 3 of the lower beam 3 are attached.
A is connected with a bolt 28 and a nut 29. FIG.
In this embodiment, the connecting plate 30 is attached to one side surface of the pillar 4 by welding, and the extending portion 30A extending below the connecting plate 30 is attached to the lower beam 3.
Are connected to the web 3C by bolts 31 and nuts 32.

As described above, the lower beam 3 of the set-back building unit 1 'and the column 4 disposed in the middle of the lower beam 3 in the longitudinal direction are pin-joined by the connecting member 20, while the set-back is performed. The remaining columns 4 of the building unit 1 ', the lower side lower beam 3, and the longer side lower beam 2 are rigidly joined by welding.
The upper short beam 6 and the upper upper beam 5 are also rigidly connected by welding, and the lower lower beam 3 and the lower upper beam 2 are also rigidly connected by welding. The joining strength of the pin joint between the lower short side beam 3 and the column 4 by the connecting member 20 is set according to the interval between the two columns 4 arranged in the longitudinal direction of the short side lower beam 3, thereby shortening the length. Edge lower beam 3
The horizontal rigidity of the setback building unit 1 'along the longitudinal direction of the basic building units 11A, 11A in the same direction.
B, 11C are set to be the same or almost the same as the lateral rigidity. The joint strength of the joint between the short side lower beam 3 and the column 4 by the connecting member 20 can be freely adjusted by arbitrarily setting the number of bolts or the welding area.

The setback building unit 1 'formed as described above is combined with the basic building units 11A, 11B, 11
When the unit-type building of FIG. 1 is built in combination with C, when a lateral load W is applied to the unit-type building, the setback building unit 1 'has the same or almost the same lateral rigidity as the basic building unit 11C. Therefore, the lateral load W is evenly or almost equally supported by these building units 1 'and 11C, and each building unit constituting the unit building bears the load at the same or almost the same ratio. Therefore, the load can be reasonably supported in the entire unit-type building.

[0018]

[0019]

[0020]

According to the present invention, in a setback building unit which is combined with a basic building unit to constitute a unit building, a lower beam of each joint between a beam and a column is provided.
Two pillars arranged along the length of the
Since the joint with the upper beam is pin-jointed, the rigidity of the setback building unit against lateral load can be the same or almost the same as the rigidity of the basic building unit. Therefore, when a lateral load is applied to the unit-type building, This lateral load can be evenly or almost equally supported by each building unit, and the unit-type building as a whole can reasonably support the load.

[Brief description of the drawings]

FIG. 1 is a side view showing a skeleton of a unit-type building built using a setback building unit according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a pin-joined part of a beam and a pillar of a setback building unit according to a first embodiment.

FIG. 3 is a cross-sectional view showing a pin joint portion according to the second embodiment.

FIG. 4 is a perspective view showing a pin joint portion according to the third embodiment.

FIG. 5 is a sectional view showing a portion of a pin joint according to the fourth embodiment.

FIG. 6 is a sectional view showing a portion of a pin joint according to the fifth embodiment.

FIG. 7 is a perspective view showing a framework of a setback building unit in a diagram.

FIG. 8 is a perspective view diagrammatically showing a framework of a basic building unit constituting a unit building together with a setback building unit.

FIG. 9 is a view similar to FIG. 1 showing a conventional unit-type building.

[Explanation of symbols]

 1, 1 'setback building unit 2, 3 lower beam 4 pillar 5, 6 upper beam 11, 11A, 11B, 11C basic building unit 12, 13 lower beam 14 pillar 15, 16 upper beam 20 connecting member forming a pin joint

 ────────────────────────────────────────────────── (5) Continuation of the front page (56) References JP-A-4-312637 (JP, A) Jpn. Microfilm (JP, U)

Claims (1)

(57) [Claims] 1. Four lower beams arranged in a quadrangular shape, two lower beams arranged at a joint portion between the lower beams, and two lower beams arranged in the middle of the length direction of the lower beams. In a setback building unit in which a skeleton is formed including four pillars and four upper beams arranged in a rectangular shape at the upper ends of these pillars, of the joints between the beams and the pillars, Arranged along the length of the lower beam
A setback building unit, characterized in that the joint between the two pillars provided and the upper beam joined thereto is pin-joined, and the other joint is rigidly joined.