JP3765055B2 - Building frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building structure, and more particularly to a building frame suitable for application to a multi-use high-rise building.
[0002]
[Prior art]
As is well known, as a structure of a steel frame structure or a reinforced concrete structure, a frame structure using a frame structure in which a column and a beam are rigidly connected is the most common. Further, in a conventional general ramen-framed building, it is normal that columns on each floor are provided at the same position over the entire floor and the columns are continuous from the lowest floor to the highest floor.
[0003]
[Problems to be solved by the invention]
By the way, in a high-rise building of a composite use where the use is different between the low-rise part and the high-rise part, there is a case where it is desired to optimally set the column position according to each use. For example, in a high-rise apartment building where the high-rise part is a dwelling unit floor and the low-rise part is a non-dwelling floor such as a store, the position of the pillars on the high-rise dwelling unit floor can be set according to the position of the boundary wall. Usually, therefore, the span in the high-rise part is usually not much larger, but when a non-residential floor such as a store is provided in the low-rise part, it may be desired to set the span there to be larger than the span of the residential floor . For this reason, it may be possible to omit a part of the pillars provided on each floor of the high-rise part in the low-rise part to increase the span, but simply omitting the pillar in the low-rise part is structurally undesirable. There was a need for a rational frame that would enable this.
[0004]
[Means for Solving the Problems]
In view of the above circumstances, the building frame of the invention of claim 1 is configured such that the frame in the building is composed of an outer peripheral column, an inner column, and a beam on each floor, and an arbitrary inner column on an arbitrary floor in the lower layer is omitted. In addition, any one of the head of the inner column or the column base on the floor directly above is supported so as to be horizontally displaceable by sliding support with respect to the beam.
[0005]
According to a second aspect of the present invention, in the building structure of the first aspect of the invention, the column base of the internal column on the floor directly above the floor from which the internal column is omitted is rigidly connected to the beam of the floor and the head of the upper floor is Supporting the beam so that it can be displaced horizontally by sliding support, and providing the floor with a wall that is integrated with the beam on the floor and insulated from the outer column and the beam on the upper floor And
[0006]
According to a third aspect of the present invention, in the building structure of the first aspect of the invention, the column base of the internal column on the floor directly above the floor where the internal column is omitted is rigidly connected to the beam of the floor and the head of the upper floor is It is supported so that it can be displaced horizontally by sliding support with respect to the beam, and the floor is provided with a brace between the column head of the internal column and the joint between the beam of the floor and the outer column. To do.
[0007]
According to a fourth aspect of the present invention, in the building frame of the first aspect of the invention, the column base of the internal column on the floor immediately above the floor from which the internal column is omitted is supported so as to be horizontally displaced by a sliding support with respect to the beam on the floor. At the same time, the head of the column is rigidly connected to the beam on the upper floor, and a suspension is provided on the floor between the column base of the internal column and the joint between the upper floor beam of the floor and the outer column. It is characterized by that.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show an embodiment of the present invention (FIGS. 2 to 4 show details of portions II, III, and IV in FIG. 1, respectively). In this embodiment, as shown in FIG. 1, the high-rise part of the third floor or more is a dwelling unit floor, and the low-rise part of the first and second floors is an atrium and is a non-dwelling unit floor where stores are provided. It is intended for high-rise buildings.
[0009]
As shown in FIG. 1, the frame of the present embodiment is basically based on a frame composed of an outer column 1 located on the outer periphery of the building, an inner column 2 located on the inside of the building, and a beam 3 on each floor. The lower frame on the first and second floors has an inner pillar omitted to make the lower layer span larger than the higher layer span and blow through the first and second floors. As there is a large-span column-free space.
[0010]
And in this embodiment, with the omission of the internal pillar in the low-rise part, the frame shown in FIGS. 2 to 4 is adopted as the frame on the floor directly above the floor (in this example, the third floor) from which the internal column is omitted. is doing. These frames are not directly rigidly joined between the upper and lower beams 3 on the floor directly above the floor from which the internal pillars are omitted, but are either the heads or the column bases of the internal pillars 2. One of the beams 3 is supported by a sliding bearing 4 so as to be horizontally displaced.
[0011]
That is, as shown in FIG. 2, the column base of the internal column 2 of this floor is usually rigidly connected to the beam 3 (floor beam 3a) of this floor, but its head is connected to the beam 3 (3b of the upper floor). ), And a wall 5 is integrally provided on the beam 3a on this floor, and the wall 5 is formed by a slit 6 on the outer column 1 and the beam 3b on the upper floor. It is structurally insulated.
[0012]
According to such a frame, the load of the high-rise part is transmitted from the beam 3b on the upper floor to the stigma of the internal column 2 via the sliding support 4, and is transmitted from the internal column 2 to the beam 3a on this floor. Since the wall 5 is provided integrally with the beam 3a, the beam 3a and the wall 5 are structurally integrated without the beam 3a itself having a large cross-section, and the bending strength of the beam 3a is different from that of the beam 3 on each other floor. Compared to this, it is much larger than the above, and therefore, it is possible to support the vertical load of the high-level portion without hindrance even if the internal column directly below the beam 3a is omitted. In addition, since the upper part of the inner column 2 can be horizontally displaced through the sliding support 4 and the side part and the upper part of the wall 5 are insulated from the surrounding shaft assembly, the horizontal rigidity at this floor is different from that of the other floors. As a result, the input to this floor at the time of an earthquake is naturally reduced, and from the above, it is possible to omit the internal pillar on the floor immediately below.
[0013]
In addition, as shown in FIG. 3, the head shown in FIG. 3 supports the head of the inner pillar 2 so that it can be horizontally displaced by the sliding support 4 with respect to the beam 3b on the upper floor. A brace 7 is provided between the column head of the column 2 and the joint between the beam 3 a and the outer column 1.
[0014]
According to such a frame, the load of the high-rise part is transmitted from the beam 3b to the head of the internal column 2 through the sliding support 4, and is transmitted from the internal column 2 to the beam 3a, and part of the load is It is transmitted directly from the column head to the outer peripheral column 1 via the brace 7, so that the bending strength required for the beam 3a can be reduced. Since the brace 7 does not receive a large bending force, a small cross section may be used. Similarly to the one shown in FIG. 2, the sliding bearing 4 reduces the horizontal rigidity of this floor and reduces the input during an earthquake, and it is possible to omit the internal pillar of the immediately lower floor.
[0015]
Further, in FIG. 4, the column base of the internal column 2 is supported by the sliding support 4 so as to be horizontally displaced with respect to the beam 3a, and the joint between the column base and the beam 3b on the upper floor and the outer column 1 is provided. A part of the load of the high-rise part is directly transmitted from the column base part of the internal column 2 to the outer peripheral column 1 through the suspension member 8, The bending strength required for the beam 3a can be reduced in the same manner as that shown in FIG. 3, and a tension member with a small cross section may be used as the suspension member 8, and the one shown in FIG. 2 and FIG. Similar effects can be obtained.
[0016]
【The invention's effect】
The structure of the building of the invention of claim 1 is based on a shaft composed of an outer peripheral column, an inner column, and a beam on each floor, and omits an arbitrary inner column on an arbitrary floor in a low-rise section, and has a floor directly above it. Since either the head of the inner column or the column base of the inner column is supported by a sliding support with respect to the beam, the horizontal rigidity of the floor directly above the floor without the inner column is reduced compared to the other floors. It is possible to reduce the earthquake input to this floor, and therefore it is possible to omit the internal pillars on the floor immediately below.
[0017]
In the invention of claim 2, in the invention of claim 1, the wall directly above the floor from which the internal column is omitted is provided with a wall that is integrated with the beam and insulated from the outer peripheral column and the beam on the upper floor. The beam and the wall function as a large cross-section beam and exhibit a large bending strength. Therefore, it is possible to omit the internal column on the lower floor without hindrance without making the beam itself a large cross-section. .
[0018]
In the invention of claim 3, in the invention of claim 1, in the floor directly above the floor from which the internal column is omitted, a brace is provided between the column head of the internal column and the joint between the beam and the outer peripheral column. A part of the load of the high-rise part is directly transmitted from the column head to the outer column through the brace, and the bending strength required for the beam can be reduced. It is possible to omit the internal pillars without hindrance.
[0019]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the upper floor of the floor from which the internal column is omitted is suspended between the column base of the internal column and the joint between the beam of the upper floor and the outer peripheral column. Therefore, a part of the load of the high-rise part is directly transmitted from the column base of the internal column to the outer column through the suspension material, and the bending strength required for the beam can be reduced. Even if it does not have a large cross section itself, it is possible to omit the internal pillar on the lower floor without any trouble.
[Brief description of the drawings]
FIG. 1 is a diagram showing a frame that is an embodiment of the present invention.
FIG. 2 is a diagram showing an example of a frame on the floor directly above the floor from which the internal pillar is omitted.
FIG. 3 is a view showing another example of the frame on the floor directly above the floor from which the internal pillar is omitted.
FIG. 4 is a view showing still another example of the frame on the floor directly above the floor from which the internal pillar is omitted.
[Explanation of symbols]
1 Peripheral column 2 Internal column 3 (3a, 3b) Beam 4 Sliding bearing 5 Wall 6 Slit 7 Brace 8 Suspension material

Claims (4)

The frame in the building is composed of outer columns, inner columns, and beams on each floor, omitting any inner columns on any lower floor, and either the top or the column base of the inner columns on the upper floor The building frame is characterized in that it is supported so that it can be displaced horizontally by sliding support on the beam. 2. The building frame according to claim 1, wherein the column base of the internal column on the floor directly above the floor from which the internal column is omitted is rigidly joined to the beam on the floor and the head of the column is horizontally supported by sliding support with respect to the beam on the upper floor. A structure of a building, which is displaceably supported and provided on the floor with a wall that is integral with the beam on the floor and insulated from the outer peripheral column and the beam on the upper floor. 2. The building frame according to claim 1, wherein the column base of the internal column on the floor directly above the floor from which the internal column is omitted is rigidly joined to the beam on the floor and the head of the column is horizontally supported by sliding support with respect to the beam on the upper floor. A building frame characterized by supporting displaceably and providing a brace on the floor between the column head of the internal column and the joint between the beam of the floor and the outer column. 2. The building frame according to claim 1, wherein the column base of the internal column on the floor directly above the floor from which the internal column is omitted is supported so as to be horizontally displaceable by a sliding support with respect to the beam on the floor and the head of the column is used as a beam on the upper floor The building is characterized in that it is rigidly connected to the floor, and a suspension member is provided on the floor between the column base of the internal column and the joint between the beam on the upper floor of the floor and the outer column. Frame.

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