JP2006083584A - Unit building and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the column strength of adjacent building units to improve the structural strength of the units in a unit building. <P>SOLUTION: In the unit building 1 with a plurality of building units 10 joined, a tie column 21 is inserted between detached columns 11 of the adjacent building units, and the tie column 21 and the columns 11 on both sides are joined. The column base of the tie column 21 is joined to a foundation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a unit building and a construction method thereof.

In a unit building formed by joining a plurality of building units, as described in Patent Document 1,
There is one that attempts to increase the structural strength of a unit building by sandwiching a horizontal round pipe between columns of adjacent building units and joining both columns with bolts and nuts.

Further, in order to form a wide continuous space in which the columns are omitted in the unit building, as described in Patent Document 2, at least one column omitted corner portion defined in each of the four building units is mutually connected at the column omitted joint portion. Crossing beams that cross between the ceiling beams of two building units adjacent to each other on one side of the column-omitted joint, and between the ceiling beams of two adjacent building units on the other side Is provided in the gap between adjacent units.
JP-A-6-49911 JP-A-8-277580

In the unit building of Patent Document 1, there is a limit in improving the cross-sectional strength of both columns joined by bolts and nuts, and further improvement in unit structural strength is desired.

Moreover, in the unit building of patent document 2, there is a limit in strengthening of a cross beam, and only a column omission space for two units can be constructed in the depth direction.

An object of the present invention is to increase the column strength of adjacent building units and improve the unit structural strength in a unit building.

Another object of the present invention is to enable a bridge beam to be strengthened in a unit building and to form a large column omit space.

The invention of claim 1 is a unit building in which a plurality of building units are joined, a connecting pillar is inserted between pillars separated from each other in adjacent building units, the connecting pillar and the pillars on both sides are joined, It is designed to be joined to the foundation of the column base.

According to a second aspect of the present invention, in the first aspect of the present invention, the connecting column and the columns on both sides are friction-joined.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a rigid connection is made based on the column base of the connecting column.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a plurality of building units are stacked one above the other, and the connecting pillar extends from the lower floor building unit side to the upper floor building unit side. It is intended to be.

The invention of claim 5 is a unit building formed by joining a plurality of pillar omitted building units.
At least one column omission corner portion defined for each of the plurality of building units is arranged so as to face each other at the column omission joint portion, and the adjacent building units are separated on both one side and the other side of the column omission joint portion. Insert the connecting column between the placed columns, join the connecting column and the columns on both sides, connect the column base of the connecting column to the foundation, and connect the other side from the ceiling beam side of the building unit on one side of the column omitted joint Crossing beams on the ceiling beam side of the building unit are provided in the gaps between adjacent units, and both ends of the crossing beam are connected to the connecting column on one side of the column omitted joint and the connecting column on the other side of the column omitted joint, respectively. Connected,
Each column omitted corner portion of the plurality of building units is connected to the intermediate portion of the crossing beam.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the unit building further comprises the plurality of building units having a column omitted corner portion as a lower floor building unit, and a plurality of upper floors above the lower floor building unit. The building unit is mounted, the connecting pillar is extended from the lower-floor building unit side to the upper-floor building unit side, and the height of the passing beam is extended to the floor beam of the upper-floor building unit. Is connected to the connecting pillar at its extended part.

The invention of claim 7 is the method of constructing a unit building according to claim 5 or 6, wherein as the building unit in which the pillar is omitted, a temporary pillar can be attached to and detached from the corner where the pillar is omitted. A temporary pillar is provided until the connection of the transfer beam to the building unit is completed, and the temporary column is removed after the connection of the transfer beam is completed.

(Claim 1)
(a) By inserting a connecting column between separated columns of adjacent building units and joining the connecting column and the columns on both sides, a combined column with a large cross-sectional strength can be formed, and the unit structural strength can be improved.

(Claim 2)
(b) By connecting the connecting columns and the columns on both sides by friction, the columns are integrated without shifting each other, and the cross-sectional strength of the combined column is further improved. Combined columns are highly effective for the burden of axial and horizontal forces.

(Claim 3)
(c) The bearing performance of axial force and horizontal force by the combined column is further improved by rigidly joining the column base of the connecting column.

(Claim 4)
(d) In unit buildings such as a total of 2 floors, the structural strength and accuracy of the unit can be further improved by using connecting columns as columns.

(Claim 5)
(e) A building beam with large cross-sectional strength can be installed by separating the building units adjacent to each other. Further, by connecting the connecting beam to the connecting column, the horizontal force and the axial force acting on the unit building where the column is omitted can be borne by the combined column composed of the connecting column and the columns on both sides. Thereby, a vast column omission space can be formed.

(Claim 6)
(f) The cross beam strength of the crossing beam is further improved by extending the height of the crossing beam from the lower floor ceiling beam to the height of the upper floor beam.

(Claim 7)
(g) Temporary pillars provided at the corners of the building unit where the pillars are omitted will not be removed until the connection of the crossing beam is completed after the factory installation and transportation / storage stages of the building unit. Therefore, the strength of the building unit at the time of connecting the connecting beam is not lowered, the building strength at the construction stage can be sufficiently secured, and the workability is good.

FIG. 1 shows a unit building of Example 1, (A) is a plan view showing adjacent building units,
FIG. 2 is a plan view showing a unit building of Example 2, FIG. 3 is a plan view showing a unit building of Example 3, and FIG. 4 is a plan showing a unit building of Example 4. FIG. 5, FIG. 5 is a plan view showing a unit building of Example 5, FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5, and FIG.
Sectional drawing which follows the VII-VII line, FIG. 8 shows a building unit, (A) is a perspective view which shows a standard building unit, (B) is a perspective view which shows a pillar abbreviation building unit.

Example 1 (FIG. 1)
As shown in FIG. 1, the unit building 1 according to the first embodiment is obtained by joining a plurality of standard building units 10 in the left-right and up-down directions.

As shown in FIG. 8A, the standard building unit 10 has four square steel pipe columns 11, four shape steel floor beams 12, and four shape steel ceiling beams 12 in a box shape. It is a joined frame structure. In the building unit 10, at the four corners, the crossing floor beams 12 are connected to the lower end of the column 11 by the joint piece 12A, and the crossing ceiling beams 13 are connected to the column 1 by the joint piece 13A.
1 is configured to be joined to the upper end portion.

In the unit building 1, the adjacent building units 10 are separated from each other, and a channel steel connecting column 21 along the entire length of the column 11 is inserted between the columns 11 separated from each other. The combined columns 20 are formed by joining the columns 11, 11 on both sides with bolts and nuts 22. The combined column 20 simply joins the upper and lower ends of the connecting column 21 and the column 11 with ordinary bolts, and has an effect on the burden of axial force and weak horizontal force. The combined column 20 frictionally joins the connecting column 21 and the upper and lower ends and the middle portion of the column 11 with high-strength bolts, and exhibits a high effect on the burden of axial force and horizontal force.

The unit building 1 joins the column base of the column 11 of each building unit 10 to the foundation, and also joins the column base of the connecting column 21 of the combined column 20 to the foundation. The united column 20 is pin-bonded with the column base of the connecting column 21 as a foundation, thereby showing an effect on the load of the axial force. In addition, the united column 20 has a high effect on the load of the axial force and the horizontal force by rigidly joining the column base of the connecting column 21 as a foundation.

When the unit building 1 has a plurality of building units 10 stacked one above the other, the connecting pillar 21 can be a through pillar extending from the lower-floor building unit 10 side to the upper-floor building unit 10 side.

When the connecting column 21 is joined to the connecting column 21 having a web height of 250 mm between the 100 mm square columns 11 and 11, the cross-sectional secondary moment 600 cm ⁴ of the original two columns 11 and 11 is strong as follows. Can be When the connecting column 21 and the column 11 are simply joined, the secondary moment of section of the combined column 20 is about 5
Times become 3000cm ⁴ of. When the connecting column 21 and the column 11 are friction-joined, the secondary moment of the cross-section of the combined column 20 is about 27 times 16000 cm ⁴ .

According to the present embodiment, the following operational effects can be obtained.
(a) The connecting pillar 21 is inserted between the pillars 11 separated from each other in the building unit 10 adjacent to each other, and the connecting pillar 21 and the pillars 11 on both sides are joined to form the combined pillar 20 having a large cross-sectional strength. The structural strength can be improved.

(b) By connecting the connecting columns 21 and the columns 11 on both sides by friction, the columns 11 are integrated without shifting each other, and the cross-sectional strength of the combined column 20 is further improved. The combined column 20 has a high effect on the burden of axial force and horizontal force.

(c) By rigidly joining the column base of the connecting column 21 as a foundation, the load performance of the axial force and horizontal force by the combined column 20 is further improved.

(d) In the unit building 1 such as the total second floor, by using the connecting pillar 21 as a through pillar, the unit structure strength and accuracy can be further improved.

Example 2 (FIG. 2)
The unit building 2 of the second embodiment is different from the first embodiment in that the building unit 10 of the building unit group forming one row on the east side and the building unit 10 of the building unit group forming one row on the west side are separated in the digit direction. This is because the connecting column 21 is inserted between the columns 11 separated from each other in the girder direction to form the combined column 20. This is a girder-side reinforcement plan for unit building 2.

Example 3 (FIG. 3)
The unit building 3 of the third embodiment is different from the first embodiment in that each corner portion (column 11) of the four building units 10 is abutted with each other and the building units 10 are separated from each other. That is, the connecting column 21 is inserted between the columns 11 separated from each other on the outer peripheral side of the unit 10 to form the combined column 20. It is an outer periphery reinforcement plan of the unit building 3.

Example 4 (FIG. 4)
The unit building 4 of the fourth embodiment is different from the first embodiment in that a plurality of building units 10 are placed apart in both the girder direction and the wife direction, and between the pillars 11 separated from each other in the girder direction and the wife direction. That is, the connecting column 21 is inserted to form the combined column 20. In the room of unit building 4,
The large black pillar 20A formed by strengthening the four pillars 11 by connecting the pillars 21 can be formed to reduce the burden on the outer periphery. This is the girder reinforcement plan for unit building 4.

Example 5 (FIGS. 5 to 7)
The unit building 5 according to the fifth embodiment uses a plurality of pillar-omitted building units 10A as shown in FIG.

As shown in FIG. 8B, the pillar omitted building unit 10A is obtained by omitting one of the four pillars 11 of the standard building unit 10. The pillar-omitted building unit 10 </ b> A has the floor beams 12 that intersect with each other at the three corner portions other than the column-omitted corner portions.
A is joined to the lower end portion of the column 11 by A, and the crossing ceiling beam 13 is joined to the upper end portion of the column 11 by the joint piece 13A, and the crossing floor beam 12 is shortened by the joint piece 12B at the column omitted corner portion. A ceiling beam 13 joined to a column 14 and intersecting with each other is joined to a short column 15 by a joint piece 13B. In the column omitted building unit 10A, the temporary column 16 is detachable at the column omitted corner portion. The temporary pillar 16 is detachably coupled to the short pillar 14 and the short pillar 15 described above by attaching and detaching means such as bolts and pins.

In the unit building 5, one column omission corner portion (position of the short column 15) determined for each of the plurality of column omission building units 10A is arranged to face each other at the column omission joint portion. At this time, the unit building 5 is composed of three column-omitted building units 10A that form one row on the east side and three that form one row on the west side.
The individual column-omitted building units 10A are placed apart in the girder direction, and connecting columns 21 are inserted between the columns 11 that are separated from each other in the girder direction on both the north and south sides of the unit building 5, and the connecting columns 21 and the columns 11 on both sides are inserted.
, 11 are joined with bolts and nuts (simple joining or friction joining) to form the combined column 20. The united column 20 joins the column base of the column 11 of each column omitted building unit 10A to the foundation (pin joint or rigid joint) and also joins the column base of the connecting column 21 to the foundation (pin joint or rigid joint).

The unit building 5 extends from the ceiling beam 13 side of the column omitted building unit 10A on one side (south end side) of the column omitting joint to the ceiling beam 13 side of the column omitted building unit 10A on the other side (north end side).
A cross-beam 31 made of a shape steel (or a groove-shaped steel is also possible) is provided in the separation gap between adjacent units in the east and west.

As shown in FIGS. 6 and 7, both ends of the connecting beam 31 are bolts and nuts on the connecting pillar 21 on one side (south end side) and the connecting pillar 21 on the other side (north end side), respectively. 32. A column omitted corner portion (such as the joint piece 13B of the short column 15) of each column omitted building unit 10A is connected to the intermediate portion of the cross beam 31 with bolts and nuts.

The unit building 5 is mounted with the standard building unit 10 on the upper floor, which forms a total of two floors, on each pillar omitted building unit 10A. The connecting building 21 is used as a through pillar to connect the upper building from the column omitted building unit 10A side. It extends to the building unit 10 side. The height of the cross beam 31 extends to the floor beam 12 side of the building unit 10 on the upper floor, and the cross beam 31 is connected to the connecting column 21 at the extended portion by bolts and nuts 32. The

In the unit building 5, the temporary column 16 is provided until the connecting beam 31 is connected to the connecting column 21 and the column-omitted corner portion of each column-omitted building unit 10 </ b> A, and the temporary column 16 is removed after the connection of the passing beam 31 is completed. .

The crossing beam 31 is an H-section steel with a web height of 350 mm and a flange width of 200 mm.
Can be adopted. H-shaped steel with a web height of 200mm and a flange width of 200mm can be used for the down-house that does not extend to the floor beam side of the upper floor.

According to the present embodiment, the following operational effects can be obtained.
(a) The connecting pillar 21 is inserted between the pillars 11 separated from each other in the building unit 10A adjacent to each other, and the connecting pillar 21 and the pillars 11 on both sides are joined to form a combined pillar 20 having a large section strength. The structural strength can be improved.

(b) By connecting the connecting columns 21 and the columns 11 on both sides by friction, the columns 11 are integrated without shifting each other, and the cross-sectional strength of the combined column 20 is further improved. The combined column 20 has a high effect on the burden of axial force and horizontal force.

(c) By rigidly joining the column base of the connecting column 21 as a foundation, the load performance of the axial force and horizontal force by the combined column 20 is further improved.

(d) In the unit building 5 such as the total second floor, the unit structure strength and accuracy can be further improved by using the connecting pillar 21 as the pillar 11.

(e) The building beams 10A adjacent to each other can be separated and the cross beam 31 having a large cross-sectional strength can be installed.
Further, by connecting the connecting beam 31 to the connecting column 21, the combined column 20 including the connecting column 21 and the columns 11 on both sides can bear the horizontal force and the axial force acting on the unit building 5 where the column is omitted. Thereby, a vast column omission space can be formed. That is, a column omission space for three units can be formed in the depth direction of the unit building 5.

In the unit building 5, the horizontal force in the north-south direction (wife direction) is as follows: six wife frames (columns 11, floor beams 12, ceiling beams 13) of the east and west column omitted building units 10 A, two connecting columns 21, It is borne by the portal frame of the cross beam 31. The horizontal force in the east-west direction (girder direction) includes four girder frames (columns 11, floor beams 12, ceiling beams 13) of the north and south column-omitted building units 10A and the combined columns 20
To pay.

(f) The cross beam strength of the cross beam 31 is further improved by extending the height of the cross beam 31 to the height of the lower floor ceiling beam 13 to the upper floor beam 12.

(g) The temporary column 16 provided in the column omitting corner portion of the building unit 10A is the building unit 10A.
After the site installation through the factory manufacturing stage and the transportation storage stage of A, it is not removed until the connection of the transfer beam 31 is completed. Therefore, the strength of the building unit 10A at the time of connecting the cross beam 31 is not lowered, the building strength at the construction stage can be sufficiently secured, and the workability is good.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to these embodiments, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention.

FIG. 1: shows the unit building of Example 1, (A) is a top view which shows the building unit which adjoins, (B) is sectional drawing which shows a united pillar. FIG. 2 is a plan view showing a unit building according to the second embodiment. FIG. 3 is a plan view showing a unit building according to the third embodiment. FIG. 4 is a plan view showing a unit building according to the fourth embodiment. FIG. 5 is a plan view showing a unit building of the fifth embodiment. 6 is a sectional view taken along line VI-VI in FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 shows a building unit, (A) is a perspective view showing a standard building unit, and (B) is a perspective view showing a pillar omitted building unit.

Explanation of symbols

1, 2, 3, 4, 5 Unit building 10 Standard building unit 10A Column omitted building unit 11 Column 12 Floor beam 13 Ceiling beam 16 Temporary column 20 Combined column 21 Connecting column 31 Cross beam

Claims (7)

In unit buildings made by joining multiple building units,
A unit building characterized in that a connecting column is inserted between columns that are separated from each other in adjacent building units, the connecting column and the columns on both sides are connected, and the column base of the connecting column is connected to the foundation.   The unit building according to claim 1, wherein the connecting column and the columns on both sides are friction-joined.   The unit building according to claim 1, wherein the unit building is rigidly connected to a base of the connecting column. The unit building according to any one of claims 1 to 3, wherein a plurality of building units are stacked one above the other, and the connecting pillar is a through pillar extending from the lower-floor building unit side to the upper-floor building unit side. In a unit building consisting of a plurality of pillar omitted building units,
At least one column omission corner portion determined for each of the plurality of building units is arranged to face each other at the column omission joint portion,
Insert the connecting pillar between the separated pillars of the adjacent building units on both the one side and the other side of the omitted part of the column, join the connecting pillar and the pillars on both sides, and use the base of the connecting pillar as the foundation. Joined,
From the ceiling beam side of the building unit on one side of the column omission joint, a crossing beam that extends from the ceiling beam side of the building unit on the other side is provided in the adjacent unit gap,
Both ends of the connecting beam are connected to the connecting column on one side of the column omitting joint and the connecting column on the other side of the column omitting connecting unit, and each column of the plurality of building units is connected to the intermediate part of the connecting beam. A unit building with an abbreviated corner connected. The unit building has the plurality of building units having a pillar omitted corner portion as a lower floor building unit, and a plurality of upper floor building units are mounted on the lower floor building unit,
Extend the connecting pillar from the lower building unit side to the upper building unit side,
The unit building according to claim 5, wherein the height of the cross beam is extended to the floor beam of the upper floor building unit, and the cross beam is connected to the connecting pillar at the extended portion. In the construction method of the unit building of Claim 5 or 6,
As a building unit in which the pillars are omitted, a unit that makes the temporary pillars detachable at the pillar omitted corners is used.
A method for constructing a unit building, characterized in that a temporary pillar is provided until the connecting beam and the building unit are connected to the connecting column, and the temporary column is removed after the connection of the connecting beam is completed.

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