JP2005248689A - Unit building and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily reinforce reduction in strength caused by omitting columns, in a unit building for forming a wide continuous space without the columns. <P>SOLUTION: This unit building 1A is constructed by adjacently arranging building units 10 and 20 joining the column 11, a floor beam 12 and a ceiling beam 13. Column omitting corner parts determined in a plurality of respective adjacent building units 20, are mutually butted and arranged by a omitted column joining part 2. The ceiling beam 13 is arranged in a crossing shape in the column omitting corner part in the same plane including the omitted column joining part 2 of the adjacent building units 20, and is formed of a follower ceiling beam 21. The mutually opposed follower ceiling beams 21 are joined by the omitted column joining part 2 of the adjacent building units 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a unit building.

As a unit building that enables the formation of a wide continuous space without columns, as described in Patent Document 1, the column omission corner portions determined for each adjacent building unit are arranged to face each other at the column omission joints, Provide a reinforcing beam that extends from the ceiling beam side of the building unit on one side of the column omitted joint to the ceiling beam side of the other building unit, and join one end of the reinforcing beam around the column of the building unit on one side In some cases, the other end of the reinforcing beam is joined around the pillar of the building unit on the other side.
Patent 3260266

The prior art of Patent Document 1 has the following problems.
(1) When a reinforcing beam is attached to a ceiling beam that intersects with a column-omitted corner in the same plane including the column-omitted joint of both building units, the reinforcing beam is moved from one building unit side to the other. It becomes a long beam across the building unit on the side, and material management and construction difficulties are great.

(2) Reinforcement beams will be installed outside the ceiling beam, and extra space will be required around both building units. When installing another building unit on the side of both building units, it is necessary to provide a large gap sufficient to arrange the reinforcing beam between the other building units.

An object of the present invention is to easily reinforce strength reduction caused by omission of a column in a unit building that forms a wide continuous space in which the column is omitted.

According to the first aspect of the present invention, in a unit building constructed by adjacently installing a building unit in which a column, a floor beam and a ceiling beam are joined, a column omitting corner portion determined for each of a plurality of adjacent building units is omitted. Building units adjacent to each other at the joints, with the ceiling beams crossed at the corners where the columns are omitted in the same plane including the column omitted joints of adjacent building units. The jointed ceiling beams facing each other are joined at the column-omitted joint.

According to a second aspect of the invention, in the first aspect of the invention, the cross-sectional strength of the joint ceiling beam constituting the building unit is made higher than the cross-sectional strength of other ceiling beams of the building unit.

According to a third aspect of the present invention, in the first or second aspect of the present invention, an end plate is welded to an end portion of the joint ceiling beam on the side of the column omitted corner portion, and the end plate of the opposite joint ceiling beam is interposed between the end plates. The spacers are sandwiched and the end plates of the joint ceiling beams are joined with high-strength bolts.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the joints extending from one side of the column omission joint to the side of the other side of the ceiling ceiling beam are further extended. A joint material attached to the beam is provided, one end side of the joint material is joined to the joint ceiling beam on one side, and the other end side of the joint material is joined to the joint ceiling beam on the other side.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein both the building units are lower floor building units, and intersects the joint ceiling beam at a column omitted corner portion of the lower floor building units. Of the upper floor building unit mounted on the lower floor building unit after cutting the ceiling beam, there is no part corresponding to the cut section of the lower floor building unit above the lower floor building unit. It forms a colonnade space across the floor building units.

The invention of claim 6 is the invention according to any one of claims 1 to 4, wherein both the building units are lower floor building units, and intersects the joint ceiling beam at a column omitted corner portion of the lower floor building units. One of the floor beams of the upper floor building unit mounted on the lower floor building unit by cutting off a part of the ceiling beam corresponds to the cut portion of the ceiling beam of the lower floor building unit. No part is provided, and a staircase space from the lower-floor building unit to the upper-floor building unit is formed.

The invention of claim 7 is the construction method of a unit building according to any one of claims 1 to 6, wherein a building unit in which a column is omitted is a column that is detachable from a temporary column corner. A temporary column is provided until the connection of the joint ceiling beam to the building unit is completed, and the temporary column is removed after the connection of the joint ceiling beam is completed.

The invention according to claim 8 is the joint ceiling beam joining method in the unit building according to any one of claims 1 to 6, wherein a guide collar is screwed to the outer periphery excluding the tip of the bolt, and the tip of the bolt is relatively Pass through the bolt insertion hole of the joint ceiling beam to be tightened, tighten the nut to the tip of the bolt protruding from the bolt insertion hole, and pull the bolt and guide collar into the bolt insertion hole of the opposing joint ceiling beam to position the bolt insertion holes with each other The bolt is loosened from the guide collar and the bolt is loosened from the guide collar, and an attachment with a detent for the guide collar is interposed between the head of the bolt and the ceiling beam, and the bolt is tightened against the attachment to guide Pull out the collar from the bolt insertion hole of the joint ceiling beam, and insert the bolt into the aligned bolt insertion hole of the opposite joint ceiling beam, and the bolt insertion hole The nut on the tip of the bolt et projecting in which was set to have a step of the tightening.

According to a ninth aspect of the present invention, in the eighth aspect of the invention, a spacer is sandwiched between the opposed joint ceiling beams, and the bolt insertion holes provided in each of the opposed joint ceiling beams and the spacer are aligned with each other. It is a thing.

(Claim 1)
(a) By connecting the joint ceiling beams that intersect the column omission corners in each adjacent building unit, the joint ceiling beams are connected like a long beam continuous across both building units. Realized. Therefore, the unit building without the pillar can be reinforced without using a long beam separate from the building unit, and the manageability and workability of the material are good.

(b) The unit building can be reinforced by the joint ceiling beam itself which is a part of the ceiling beam constituting the building unit, and it is not necessary to add a separate reinforcing member around the building unit. Even when another building unit is installed on the side of the building unit, there is no need to provide an installation gap for the reinforcing member between the other building units.

(Claim 2)
(c) The joint ceiling beam that reinforces the unit building by crossing the column-omitted joint of the unit building is
By making the cross-sectional strength high enough to compensate for the strength reduction due to omission of columns and setting the cross-sectional strength of other ceiling beams to the standard level, the cross-sectional strength of all ceiling beams of the building unit is necessary and sufficient for each. Thus, the economy of structural strength can be achieved.

(Claim 3)
(d) By connecting the end plates of joint ceiling beams of adjacent building units to each other with a high-strength bolt via a spacer, the joint ceiling beams can be easily joined together, and the dimensional accuracy of the unit building can be improved. It can be improved.

(Claim 4)
(e) By connecting the joint ceiling beams of adjacent building units to each other with a high-strength bolt via a joint material, the joint ceiling beams can be easily joined together, and the dimensional accuracy of the unit building can be improved. .

(Claim 5)
(f) At the corner of the lower floor building unit, omit the ceiling beam that intersects the joint ceiling beam.
Among the floor beams of the upper floor building unit mounted on the lower floor building unit, the one corresponding to the cut part of the ceiling beam of the lower floor building unit is not provided. Therefore, it is possible to form an atrium space from the lower floor building unit to the upper floor building unit while securing the structural strength of the unit building by the joint ceiling beam.

(Claim 6)
(g) At the corner of the lower floor building unit where the pillars are omitted, a part of the ceiling beam that intersects the joint ceiling beam is cut out, and the lower floor of the floor beams of the upper floor building unit mounted on the lower floor building unit. A part corresponding to the excised part of the ceiling beam of the building unit was not provided. Therefore, a staircase space extending from the lower floor building unit to the upper floor building unit can be formed while securing the structural strength of the unit building by the joint ceiling beam.

(Claim 7)
(h) The temporary pillars provided at the corners where the building unit is omitted will not be removed until the connection of the joint ceiling beam is completed after the building unit is installed in the factory and transported and stored. Therefore,
The strength of the building unit at the time of connecting the ceiling beam is not reduced, the building strength at the construction stage can be sufficiently secured, and the workability is good.

(Claim 8)
(i) By using guide collars and attachments, it is possible to correct the displacement of the bolt insertion holes of the opposite joint ceiling beam, to easily align the bolt insertion holes, and to easily insert the bolts into these bolt insertion holes. The joint ceiling beams can be easily joined.

(Claim 9)
(j) Even when a spacer is sandwiched between opposing joint ceiling beams, the bolt insertion holes provided in each of the joint ceiling beams and the spacer can be easily aligned.

1 is a perspective view showing a unit building, FIG. 2 is a schematic perspective view showing a unit building, FIG. 3 is a perspective view showing a building unit, FIG. 4 is a schematic front view showing a building unit to which construction method I is applied, and FIG.
Is a sectional view showing a specific structure of construction method I, FIG. 6 is a schematic front view showing a unit building to which construction method II is applied, FIG. 7 shows a specific structure of construction method II, (A) is a front view, (B ) Is a cross-sectional view, FIG. 8 is a diagram illustrating the principle of strengthening the rigidity of a beam of construction II, (A) is a schematic diagram illustrating the deformation state of the beam, (B) is a schematic diagram illustrating a beam unit model, and (C) is a ramen structure. 9 is a schematic diagram showing a body model, FIG. 9 is a diagram showing the principle of rigidity enhancement of a unit frame of construction method II, (A) is a schematic diagram showing a deformed state of a beam, (B) is a schematic diagram showing a frame structure model, FIG. Fig. 11 is a schematic diagram showing a joint structure of adjacent building units by construction method III, Fig. 11 is a cross-sectional view showing the main part of Fig. 10, Fig. 12 is a schematic diagram showing an example of joining of building units, and Fig. 13 is a modification of construction method III. An example is shown, (A) is a plan view showing a joint part of a lower floor building unit, (B) is a BB line of (A) Cormorants sectional view, FIG. 14 is a perspective view showing an apertured spacer,
FIG. 15 shows a modified example of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit,
B) is a cross-sectional view taken along line BB of (A), FIG. 16 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is (A). FIG. 17 shows a building unit to which construction method IV is applied, (A) is a front view showing the lowest floor building unit,
B) is a front view showing the upper-floor building unit, FIG. 18 is a schematic diagram showing the rigidity enhancement principle of the frame of the construction method IV, FIG. 19 is a schematic diagram showing an example of the rigidity enhancement of the frame of the construction method IV, and FIG. 21 is a front view showing an example of diagonal member installation, FIG. 21 shows a lower end attachment portion of the diagonal member, (A) is a front view, (B) is a sectional view, and FIG. 22 is an intermediate portion of the ceiling beam to which the upper end portion of the diagonal member is attached. FIG. 23 shows a unit building of Example 1 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, (B
) Is a schematic plan view after reinforcement with a joint ceiling beam, (C) is a schematic side view of (B), FIG. 24 is a plan view showing a joined state of both building units, and FIG. 25 shows both building units before joining. 26 is a front view, FIG. 26 shows a joint portion of both building units, and (A) is a front view in a state in which the lip portion of the beam is omitted,
(B) is a side view, FIG. 27 shows a unit building of Example 2 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a model after reinforcement with the joint ceiling beam. Plan view, FIG.
(A) is a schematic plan view before reinforcement with a joint ceiling beam, (B) is a schematic plan view after reinforcement with a joint ceiling beam, and FIG. Example 4 concerned
FIG. 30 is a side view of FIG. 29, FIG. 31 is a perspective view showing a guide collar used in the construction method V, and FIG. 32 is a perspective view showing an attachment used in the construction method V.
FIG. 33 is a schematic diagram showing a guide color drawing procedure in the construction method V, and FIG. 34 is a schematic diagram showing a guide color drawing procedure in the construction method V.

The unit building 1 shown in FIGS. 1 and 2 is constructed by supporting a lowermost floor building unit 20 on a foundation 10 and sequentially mounting upper floor building units 30 and 40 on the lowermost floor building unit 20. is there.

That is, the unit building 1 is constructed by installing a plurality of building units 20, 30, 40 adjacent to each other in the horizontal direction and the vertical direction. As shown in FIG. 3, the building unit 20 (the building units 30 and 40) has a frame structure in which a square steel pipe tube column 21, a shaped steel floor beam 22, and a shaped steel ceiling beam 23 are joined in a box shape. Is the body. The building unit 20 is configured by welding the floor beam 22 to the lower end portion of the pipe column 21 via the joint piece 22J and welding the ceiling beam 23 to the upper end portion of the pipe column 21 via the joint piece 23J. The building unit 20 can omit the floor beam 22.

The unit building 1 can constitute a middle-high-rise unit building such as a three-story building by stacking a plurality of building units 20 in the vertical direction. In addition, the unit building 1 is formed by joining a plurality of column-omitted building units adjacent to each other, with at least one corner portion of the building unit 20 as a column-omitted corner portion. It is also possible to configure a column omitting unit building formed by abutting and forming a column omitting joint.

As shown in FIGS. 4 and 5, the foundation 10 includes an anchor bolt 1 and a solid solid foundation 11.
The steel foundation structure 13 is fixed using 2, and the lowermost building unit 20 is supported on the upper portion of the foundation structure 13.

The lowermost floor building unit 20 is obtained by omitting the floor beam 22, and bridges the shape steel ceiling beam 23 between the upper ends of the four square steel pipe columns 21, and the end of the ceiling beam 23 is the column 21. This is a rigid frame structure that is rigidly joined to the upper end of the frame. The joint hardware 23J (FIG. 7) is welded to the upper end of the column 21, and the end of the ceiling beam 23 is welded to the joint hardware 23J. The lowermost floor building unit 20 may further include a shaped steel floor beam 22 spanned between the lower ends of the columns 21, and the end of the floor beam 23 may be rigidly joined to the lower ends of the columns 21. .

The upper floor building unit 30 (same for 40) spans a section steel ceiling beam 33 (43) between the upper ends of four square steel pipe columns 31 (41), and the end of the ceiling beam 33 is connected to the column 31. A rigid frame structure constructed by rigidly joining the upper end of the column 31, bridging a section steel floor beam 32 (42) between the lower ends of the column 31, and rigidly joining the end of the floor beam 32 to the lower end of the column 31. Is the body. Joint hardware 33J (not shown) and 32J (FIG. 7) are welded to the upper end and lower end of the column 31, and the joint hardware 33J and 32 are joined.
The ends of the ceiling beam 33 and the floor beam 32 are welded to each of J.

In the unit building 1, between the lowest floor building unit 20 and the upper floor building unit 30,
The ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30 are arranged one above the other so that the ceiling beam of the upper floor building unit 30 is between the upper floor building unit 30 and the upper floor building unit 40. 33 and the floor beam 42 of the upper floor building unit 40 are arranged one above the other.

However, the unit building 1 is strengthened by applying each of the construction methods I, II, III, IV, and V.

Construction method I is foundation-column rigid joint structure,
Construction method II is a joint structure between upper and lower beams
Construction method III is adjacent column joint structure,
Construction method IV is diagonal reinforcement structure,
Construction method V is a column omission reinforcement structure.

(Construction I: Foundation-column rigid joint structure) (Figs. 4 and 5)
The construction method I is applied between the foundation 10 and the lowermost floor building unit 20 (FIGS. 1 and 2), and is joined so that the column base 21F of the column 21 of the lowermost floor building unit 20 is not substantially displaced from the foundation 10. (FIG. 4).

As shown in FIG. 5, the foundation 10 has an attachment metal 14 fixed to the upper end portion of the foundation structure 13 by welding, and a mounting bracket 24 fixed to the column base 21 </ b> F of the lowest floor building unit 20 by welding. The high strength bolts 15 are joined to the mounting hardware 14 so as not to be substantially displaced.

According to the construction method I, in the unit building 1, the column base 21 </ b> F of the lowest floor building unit 20 is joined to the foundation 10 so as not to be substantially displaced, whereby the rotation of the column base 21 </ b> F with respect to the foundation 10 is suppressed, and the building unit 20 The horizontal rigidity of can be improved. In order to increase the horizontal rigidity of the building unit 20, it is not necessary to reinforce the cross section of the column 21, and it is not necessary to add a middle column or a horizontal brace, thereby increasing the degree of freedom in the plan of the building unit 20 and reducing the cost.

(Structure II: Vertical beam joint structure) (Figs. 6-9)
Construction II is performed between the ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30 and / or the ceiling beam 33 of the upper floor building unit 30 and the floor beam 42 of the upper floor building unit 40. (FIGS. 1 and 2). Hereinafter, application between the ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30 will be described.

Vertical load of the ceiling beam 23 of the lower floor building unit 20 and the floor beam 32 of the upper floor building unit 30 (
In order to enhance the rigidity of the beam against the floor load), both ends of the ceiling beam 23 and the floor beam 32 are joined so as not to be substantially displaced at the rigid joints R1 and R2 (FIG. 6).

Further, in order to enhance the rigidity of the frame against the horizontal load of the lowest floor building unit 20 and the upper floor building unit 30, in addition to the rigid joints R1 and R2, the intermediate portion in the longitudinal direction of the top beam 23 and the floor beam 32 is used. (In the present embodiment, the central portion) are joined at the rigid joint R3 so as not to be substantially displaced (FIG. 6).
).

The rigid joints R1 to R3 may be composed of four wires as schematically shown in FIG.
A plate 50 shown in FIG. 7 can be used. The plate 50 is a web w of the ceiling beam 23.
The web w of the ceiling beam 23 is attached to the web w of the floor beam 32 by two high-strength bolts 51, 51.
And fastened to the web w of the floor beam 32 with two high strength bolts 52, 52. Plate 5 in FIG.
0 shows what is sandwiched from both sides by the ceiling beams 23 and 22 of the lowermost floor building units 20 and 20 adjacent to the left and right and the floor beams 32 and 33 of the upper floor building units 30 and 30.
May be one in which only one side is attached to the ceiling beam 23 and floor beam 32 of each one building unit 20, 30. The plate 50 may be welded.

The plate 50 is attached to the flange f of the ceiling beam 23 and the flange f of the floor beam 32, and is fastened to the flanges f and f by high-strength bolts or welding joints, so that the ceiling beam 23 and the floor beam 32 are substantially omitted. It may be joined so as not to shift.

According to the construction method II, in the unit building 1, both ends of the two beams 23, 32, which are the floor beams 32 of the upper-floor building unit 30 and the ceiling beams 23 of the lower-floor building unit 20, which are vertically stacked, are rigidly connected. When the two beams 23 and 32 are bent and deformed under the action of a vertical load, the phase difference between both ends of the two beams 23 and 32 is suppressed by joining the joints R1 and R2 so that they are not substantially displaced. (FIG. 8A). As a result, the two beams 23, 32 have a cross-sectional performance I1,
Rigidity is enhanced by expressing a cross-sectional performance α (I1 + I2) larger than the sum of I2 (I1 + I2),
Yield strength against vertical load can be improved. Note that it is not necessary to provide the rigid joint R3 in order to enhance the beam rigidity by the construction method II.

The single beam model (FIG. 8 (B)) consisting of only two beams 23 and 32 has a proof stress of about 2.6 times that of the normal model to which the present invention is not applied. Columns 21 at both ends of the two beams 23 and 32,
In the rigid frame model (FIG. 8C) in which 31 is rigidly connected, 1.3 times compared to the normal model.
Shows 1.4 times the proof stress. 8B and 8C, S provided between the central portion of the ceiling beam 23 and the floor beam 32 is a spacer that fills the gap between the ceiling beam 23 and the floor beam 32. The floor load acting on 32 can be transmitted to the ceiling beam 23.

Further, in the construction method II, in the unit building 1, the two ramen structures that are the floor beams 32 of the upper-floor building unit 30 and the ceiling beams 23 of the lower-floor building unit 20 are arranged on top and bottom of each other.
One of the building units is formed by joining both ends of the beams 23 and 32 so as not to be substantially displaced by the rigid joints R1 and R2 and joining the intermediate parts so as not to be substantially displaced by the rigid joint R3. When the two beams 23 and 32 are deformed into an S shape by the horizontal load P acting on the 30 columns 31, the phase difference between the both ends and the middle portion of the two beams 23 and 32 is suppressed (FIG. 9A). ). Thereby, the frame intensity | strength of the building units 20 and 30 can expand, and the proof stress with respect to a horizontal load can be improved.

The frame rigidity of the building units 20 and 30 according to the present invention is about 1.3 times that of a normal model to which the present invention is not applied (FIG. 9B).

In construction II, the floor beam 32 of the upper building unit 30 and the ceiling beam 2 of the lower building unit 20
3 are joined so that the webs 3 of the floor beams 32 and the ceiling beams 23 do not substantially deviate from each other, or the flanges f of the floor beams 32 and the flanges f of the ceiling beams 23.
It can carry out simply using the plate 50 attached to. The one in which the plate 50 is attached to the web w can improve the frame strength of the building units 20 and 30.

(Structure III: Adjacent column joint structure) (FIGS. 10 to 16)
In the construction method III, the lower floor building units 20 and 20 are arranged side by side between the columns 21 and 21, the upper floor building units 30 and 30 are arranged side by side, and the upper floor building units 40 and 40 are arranged side by side. It is applied between the columns 41 and 41 (FIGS. 1 and 2).

However, in the present embodiment, in the unit building 1 that constitutes the middle-high-rise unit building, the column omitting unit building, etc., in order to increase the horizontal rigidity of the unit building 1, a part of the unit building 1 as shown in FIG. Tube columns 21 lined up across a gap between adjacent building units 20, 20,
The bolts 21 are joined together as follows.

As shown in FIG. 11, the adjacent column units 21, 21 of the building units 20, 20 adjacent to each other are shown in the following (1) to (3) at the three positions of the upper end, the lower end, and the middle. As shown in FIG.

(1) Adjacent side walls 21A, 2 of adjacent pipe columns 21, 21 of adjacent building units 20, 20.
Bolt insertion holes 61 </ b> A and 61 </ b> A are provided coaxially in each of the 1 </ b> A and one tube pillar 2
The bolt mounting operation hole 6 is formed in the side wall 21B on the back side of the side wall 21A provided with one bolt insertion hole 61A.
Side wall 2 on the back side of the side wall 21A provided with 1B and provided with the bolt insertion hole 61A of the other tube column 21
A nut mounting operation hole 61C is provided in 1B. The bolt insertion holes 61A and 61A have the same diameter, and the bolt mounting operation hole 61B and the nut mounting operation hole 61C have the same diameter.

(2) Adjacent building units 20, 20 are installed on the foundation of the construction site, and the adjacent pipe columns 21, 2
A perforated spacer 60 that is coaxially disposed in the bolt insertion holes 61A and 61A provided in one opposing side wall 21A and 21A is provided in a gap sandwiched between the side walls 21A and 21A.

(3) The bolt 61 inserted from the bolt mounting operation hole 61B provided in the side wall 21B of one of the tube columns 21 is connected to the bolt insertion holes 61A and 61A of both the tube columns 21 and 21, and the opposite side walls of both the tube columns 21 and 21. The holes are inserted into the bolt insertion holes 60A of the perforated spacer 60 provided in the gap between 21A and 21A. A nut 62 inserted from a nut mounting operation hole 61 </ b> C provided in the side wall 21 </ b> B of the other pipe column 21 is screwed to the bolt 61. The bolt 61 is a high-strength bolt, which is a torcia-type high-strength bolt in this embodiment, and a torcia tool is inserted from the nut mounting operation hole 61 </ b> C and the nut 62 is fastened to the bolt 61.

Note that a high-strength hexagon bolt can be used as the bolt 61, and other bolts can also be used.

According to the present embodiment, the following operational effects can be obtained.
(a) It is possible to rationally increase the horizontal rigidity of the unit building 1 composed of the two building units 20 and 20 by combining the adjacent column units 21 and 21 of the building units 20 and 20 by bolting. it can. Accordingly, it is possible to reinforce the middle / high-rise floor unit building 1 such as a three-story building or the column omitting unit building 1.

(b) At the factory production stage of the building unit 20, the pipe column 21 of one of the adjacent building units 20
The bolt insertion hole 61A and the bolt mounting operation hole 61B are provided on the pipe column 21 of the other building unit 20, and the bolt insertion hole 61A and the nut mounting operation hole 61C are simply provided. Easy handling at the storage stage.

(c) At the construction site, the other building unit 20 is installed close to the one building unit 20, and the spacers 60 are arranged on the side walls 21 </ b> A and 21 of the pipe columns 21 arranged side by side with the building unit 20.
It can be assembled by simply inserting it between A, and the installation property of the building unit 20 and the assembly property of the spacer 60 are good.

(d) The installation tool of the bolt 61 and / or the nut 62 is operated using the bolt mounting operation hole 61B or the nut mounting operation hole 61C provided in the tube column 21, and the operability is good.

(e) By using the high-strength bolts 61, the pipe columns 21 arranged side by side in the adjacent building units 20 can be strongly combined, and the horizontal rigidity of the unit building 1 can be improved.

(f) By using the torcia-type high-strength bolt 61, the fastening operation of the bolt 61 and the nut 62 can be easily performed with a torcia tool.

(g) Adjacent pipe columns 21, 21 of adjacent building units 20, 20 are connected to each other at their upper ends,
By bolting at a plurality of positions at the lower end portion and the intermediate portion, it is possible to enhance the synthesis of the tube columns 21 and further improve the horizontal rigidity of the unit building 1.

The horizontal rigidity of the unit building 1 according to the present invention of FIGS. 12B to 12D, in other words, the allowable horizontal load P with respect to the capital of the building unit 20 is a normal model to which the present invention is not applied (FIG. 12 (
A)) to 1.2 to 1.9 times the allowable horizontal load Pa. FIG. 12B shows an example in which the tube pillars 21 and 21 are bolted at the upper end and the lower end, and P = 1.2 Pa. FIG. 12C shows the tube pillars 21 and 21 at the upper end, the lower end, and the intermediate portion. In the example of bolting at one place, P = 1.7 Pa, FIG. 12 (D)
Is an example in which the pipe columns 21, 21 are bolted at the three positions of the upper end, the lower end, and the middle, P = 1.9
Pa.

FIG. 13 shows a cross-shaped perforated spacer 70 in the unit building 1 in which the corner portions of four building units 20 adjacent to each other are arranged to face each other and the upper building unit 30 is mounted on each building unit 20. This is an example of using construction method III. At this time, the pipe columns 21 of the four building units 20 are aligned with a cross-shaped gap, and the columns 31 of the four upper-floor building units 30 are also aligned with a cross-shaped gap. Moreover, between the building unit 20 corresponding to the upper and lower sides and the upper floor building unit 30, the ceiling beam 23 which is rigidly joined to the upper end part of the adjacent column 21 of the building unit 20 and is bridged between them, Floor beams 32 that are rigidly joined to the lower end portions of adjacent columns 31 of the floor building unit 30 and are spanned between them are stacked one above the other.

As shown in FIG. 14, the perforated spacer 70 includes a girder direction plate 71 arranged along the girder direction, and a wife direction plate 72 arranged orthogonal to the lower half of the central portion along the girder direction of the girder direction plate 71. It consists of.

The lower half of the girder direction plate 71 of the perforated spacer 70 is the building unit 20 adjacent in the wife direction,
Bolts 61 inserted into bolt mounting operation holes 61B provided in the gaps between the opposing side walls 21A, 21A of the 20 side-by-side columns 21, 21 and inserted in the side wall 21A of the one column 21 are both pipe columns 21, 21. Bolt insertion holes 61A, 61A, and side walls 21A, 21 of both tube columns 21, 21
A nut 62 inserted through a nut insertion hole 61C provided in the side wall 21B of the other pipe column 21 is inserted into the bolt insertion hole 71A in the lower half of the girder direction plate 71 provided in the gap between the bolts 61. Screw on. Further, the end plate 72 of the perforated spacer 70 is provided in a gap between the opposing side walls 21A, 21A of the side-by-side pipe columns 21, 21 of the building units 20, 20 adjacent to each other in the spar direction. The bolt 61 inserted from the bolt mounting operation hole 61B provided in the side wall 21B of the tube column 21 is a gap between the bolt insertion holes 61A and 61A of both the tube columns 21 and 21 and the side walls 21A and 21A of both the tube columns 21 and 21. A nut 62 inserted through a nut insertion operation hole 61 </ b> C provided in the side wall 21 </ b> B of the other pipe column 21 is screwed into the bolt 61. As a result, the adjacent pipe columns 21 of the four building units 20 adjacent to each other.
The horizontal rigidity of the unit building 1 including these building units 20 can be increased reasonably as in the embodiment of FIGS.

The upper half of the spar direction plate 71 of the perforated spacer 70 extends upward from the lower half of the spar direction plate 71, and the adjacent column pillars 31 of the upper floor building units 30, 30 that are adjacent in the wife direction, The bolt 61 inserted through the bolt mounting operation hole 61B provided in the side wall 31B of the one pipe column 31 is provided in a gap between the opposite side walls 31A, 31A of the bolt 31 and the bolt insertion holes 61A of both the tube columns 31, 31 are provided.
61A and nuts provided in the side wall 31B of the other pipe column 31 through the bolt insertion holes 71B in the upper half of the spar direction plate 71 provided in the gap between the side walls 31A, 31A of the both pipe columns 31, 31 The nut 62 inserted from the mounting operation hole 61C is screwed to the bolt 61. As a result, the adjacent pipe columns 31 of the four upper-floor building units 30 adjacent to each other are combined by bolting, and the units including the upper-floor building units 30 are combined as in the embodiments of FIGS. 10 to 12. The horizontal rigidity of the building 1 can be increased reasonably.

Furthermore, in the unit building 1, the ceiling beam 23 of the building unit 20 that is placed one above the other.
And the one end of the floor beam 32 of the upper floor building unit 30 are joined together as described above via the pipe columns 21 and 31 and the girder direction plate 71 of the perforated spacer 70. The other end portions of the floor beam 32 can be joined so as not to be substantially displaced as in the above-described construction method II. When the two beams 23 and 32 are bent and deformed under the action of a vertical load, the phase difference between both ends of the two beams 23 and 32 is suppressed. As a result, the two beams 23 and 32 exhibit a cross-sectional performance larger than the sum of the cross-sectional performances of the beams 23 and 32, are strengthened in rigidity, and can improve the proof strength against a vertical load. Further, the two beams 23, 3 are caused by a horizontal load acting on the pillar 31 of one building unit 30.
When 2 is deformed in an S shape, the phase difference between the two end portions and the intermediate portion of the two beams 23 and 32 is suppressed. Thereby, the frame intensity | strength of the building units 20 and 30 can expand, and the proof stress with respect to a horizontal load can be improved. In the unit building 1, both the construction method II and the construction method III are applied, and the horizontal rigidity and the vertical rigidity of the unit building 1 can be strengthened together.

In FIG. 13, among the four building units 20, the upper floor building unit 30 is mounted only on the upper part of the two building units 20 on one side in the girder direction, and the upper part of the other two building units 20 is the upper side. In the unit building 1 which is a lower house where the floor building unit 30 is not mounted, the girder direction plate 71 of the perforated spacer 70 is arranged on one side of the upper half as shown by a two-dot chain line in FIG. Excise.

FIG. 15 is a modified example of FIG. 13, in the unit building 1 in which the corner portions of two building units 20 adjacent to each other are arranged to face each other and the upper floor building unit 30 is mounted on each building unit 20. This is an example in which the construction method III is applied using a flat perforated spacer 80.

Side walls 21A, 21A opposite to each other of adjacent column columns 21, 21 of building units 20, 20 adjacent to each other.
A lower half portion of the perforated spacer 80 is provided in the gap between the two, and similarly to the embodiment of FIG. 13, the juxtaposed pipe columns 21 and 21 are bolted together by the bolt 61 to construct the construction method III.

Further, the opposite side walls 31 of the adjacent pipe columns 31, 31 of the upper building units 30, 30 adjacent to each other.
The upper half of the perforated spacer 80 is provided in the gap between A and 31A, and the tube columns 31 and 31 arranged side by side are bolted together with bolts 61 to construct the construction method III as in the embodiment of FIG. .

Furthermore, the protrusion 81 of the lower half part of the perforated spacer 80 is provided in the gap between the adjacent joint pieces 23J, 23J of the adjacent pipe columns 21, 21 of the building units 20, 20 adjacent to each other.
These opposing joint pieces 23J, 23J are bolted together by bolts 61. As a result, in the unit building 1, the end portions of the ceiling beam 23 of the building unit 20 and the floor beam 32 of the upper floor building unit 30 that are stacked one above the other are connected to the pillars 21 and 31 and the perforated spacer 80. Therefore, the construction method II can also be constructed by joining the other ends of the ceiling beam 23 and the floor beam 32 so as not to substantially deviate from each other.

FIG. 16 is a modification example of FIG. 13, in the unit building 1 in which the corner portions of three building units 20 adjacent to each other are arranged to face each other and the upper-floor building unit 30 is mounted on each building unit 20. In this example, construction method III is applied using an L-shaped perforated spacer 90.

The perforated spacer 90 includes a girder direction plate 91 disposed along the girder direction and a wife direction plate 92 disposed orthogonal to one longitudinal edge of the girder direction plate 91.

In each of the wife direction and the girder direction, the adjacent column 21 of the building units 20, 20 adjacent to each other.
, 21 in the gap between the opposing side walls 21A, 21A, the girder direction plate 9 of the perforated spacer 90
1. The lower half part of the wife direction plate 92 is provided, and in the same manner as the embodiment of FIG.
One to the other is bolted together with bolts 61 to construct construction method III.

Further, in each of the wife direction and the spar direction, the spar direction plate 91 of the perforated spacer 90 is formed in a gap between the opposing side walls 31A, 31A of the adjacent column columns 31, 31 of the upper building units 30, 30 adjacent to each other. The upper half of the wife direction plate 92 is provided, and in the same manner as in the embodiment of FIG. 13, the juxtaposed pipe columns 31 and 31 are bolted together with bolts 61 to construct the construction method III.

In the unit building 1, one end portions of the ceiling beam 23 of the building unit 20 and the floor beam 32 of the upper floor building unit 30 that are arranged one above the other are the tube columns 21 and 31 and the perforated spacer 90. Therefore, the construction method II can also be constructed by joining the other ends of the ceiling beam 23 and the floor beam 32 so that they do not substantially deviate from each other.

In FIG. 16, among the three building units 20, the building unit 20 on one side in the wife direction.
In the unit building 1 in which the upper-floor building unit 30 is mounted only on the upper part and the upper part of the other building unit 20 is a lower house on which the upper-floor building unit 30 is not mounted, the wife direction plate 92 of the perforated spacer 90 is provided. The upper half is excised as shown by a two-dot chain line in FIG.

(Structure IV: diagonal reinforcement structure) (FIGS. 17 to 19)
The construction method IV is between the column base 21F of the column 21 of the lowest floor building unit 20 and the middle part of the ceiling beam 23.
Between the column base 31F of the column 31 of the upper floor building unit 30 (40 is the same) and the middle part of the ceiling beam 33,
Alternatively, it is applied between the column head 31H of the column 31 of the upper floor building unit 30 (40 is the same) and the middle portion of the floor beam 32 (FIGS. 1 and 2).

FIG. 17A shows an oblique member 101 provided between the column base 21 </ b> F of the column 21 of the lowest floor building unit 20 and the intermediate portion of the ceiling beam 23. The diagonal member 101 includes the column base 21F of the column 21 and the ceiling beam 2.
3 is pin-bonded to each of the intermediate portions of 3 (rigid bonding is also possible).

FIG. 17B shows an oblique material 102 provided between the column base 31 </ b> F of the column 31 of the upper floor building unit 30 and the intermediate portion of the ceiling beam 33. The diagonal member 102 includes the column base 31F of the column 31 and the ceiling beam 33.
It is pin-joined to each of the middle part of the (possibly rigid joint). Since the upper floor building unit 30 includes the floor beam 32, the diagonal member 10 described above is provided between the column head 31 </ b> H of the column 31 and the intermediate portion of the floor beam 32.
2 may be provided.

According to the construction method IV, in the unit building 1, the diagonal member 101 is provided between the column base 21 </ b> F of the lowest floor building unit 20 and the middle part of the ceiling beam 23.
A right-angled triangle formed by a part of the column 21 and the ceiling beam 23, which is a corner, together with the diagonal member 101 is defined as an undeformed body (undeformed truss). As a result, the apparent length L2 of the ceiling beam 23 in the building unit 20 (the deformed portion length L2 obtained by removing the undeformed truss portion L1 from the total length L of the ceiling beam 23) is shortened to enhance the frame rigidity, and the horizontal load The proof stress with respect to P can be improved (FIG. 18).

Also, between the column base 31F of the upper floor building unit 30 (same for 40) and the middle part of the ceiling beam 33 (
Alternatively, the diagonal member 102 is provided between the column head 31H and the intermediate portion of the floor beam 32, so that the pillar 31 and a part of the ceiling beam 33, which are one corner of the frame of the rigid frame structure, form a right angle with the diagonal member 102. Let the triangle be an undeformed body (undeformed truss). As a result, the apparent length L2 of the ceiling beam 33 in the building unit 30 (the deformed portion length L2 obtained by removing the undeformed truss portion L1 from the total length L of the ceiling beam 33) is shortened to enhance the frame rigidity, and the horizontal load Strength against P can be improved.

The above-mentioned non-deformable body (non-deformable truss) with a simple configuration in which the diagonal members 101 and 102 are added while making use of the frame of the column 21 and the beam 23 and the frame of the column 31 and the beams 32 and 33. The above-described frame rigidity can be easily enhanced.

By simply connecting the diagonal members 101 and 102 to the columns 21 and 31 and the beams 23 and 33 (32), the above-mentioned indeformable body (undeformed truss) is easily formed at one corner of the frame of the rigid frame structure. It is possible to simplify the attachment of the diagonal members 101 and 102.

Since the frame rigidity is reinforced only by the diagonal members 101, 102, the building units 20, 30
A relatively large opening can be formed without disturbing the formation of the opening in the ramen structure.

The frame rigidity of the building units 20, 30 (same for 40) according to the present invention is 1.3 to 2.0 times that of a normal model to which the present invention is not applied. Building unit 20 and building unit 30
(40 is the same), the position where the diagonal members 101, 102 are joined to the ceiling beam 23 of the building unit 20 and the ceiling beam 33 of the building unit 30, in other words, the length of the undeformed truss portion L1 is 450 mm.
, 900 mm, the allowable horizontal load Pa of the building units 20, 30 is the allowable horizontal load Pa (1300 kg, 900 kg) of the normal model not using the diagonal members 101, 102 as shown in FIG.
In contrast, the building unit 20 expands to 1550 kg and 1700 kg, and the building unit 30 increases 1200 kg.
, Expand to 1400kg.

As shown in FIG. 19, in the lowest floor building unit 20, the column bases 21F of the left and right columns 21 are provided.
Left and right diagonal members 101 may be provided between the left and right intermediate portions of the ceiling beam 23. Also, in the upper floor building unit 30 (40 is the same), the column bases 31 of the left and right columns 31 are also shown.
Left and right diagonal members 102 and 102 may be provided between F (or stigma 31H) and the left and right intermediate portions of ceiling beam 33 (or floor beam 32). According to this, left and right diagonal members 101, 101
, 102, 102 are joined to the ceiling beam 23 of the lower floor building unit 20 and the ceiling beam 33 of the upper floor building unit 30, and the length of the undeformed truss portion L1 formed as a result is as short as 450 mm, for example. The allowable horizontal load Pa of the building units 20 and 30 can be greatly increased to 2050 kg and 1800 kg.

20 to 22 are specific attachment examples of the diagonal member 101 (same for 102) in the construction method IV. The building unit 20 (30, 40 is the same) is an example including a floor beam 22, and a reinforcing frame 25 including the diagonal member 101 is fitted between the floor beam 22 and the ceiling beam 23.

The reinforcing frame 25 includes a reinforcing column 26 attached to the column 21 and an intermediary column 27.
The lower end portion of the diagonal member 101 is joined by welding or the like to the mounting plate 26A that extends horizontally from the lower end portion of the intermediate member 27, and the upper end portion of the oblique member 101 is joined to the side surface on the upper end side of the intermediate column 27 by welding or the like.
The connecting beam 28 is bridged between the lower end side intermediate portion of 01 and the lower end side intermediate portion of the intermediate column 27, and the connecting beam 29 is extended between the upper end side intermediate portion of the diagonal member 101 and the upper end side intermediate portion of the reinforcing column 26. .

The reinforcing frame 25 includes a reinforcing column 26 and a mounting plate 26A constituting the lower end portion of the diagonal member 101.
The joint plate 22B joined to the column base 21F of the column 21 is bolted, and the mounting plate 26B extending horizontally from the upper end of the reinforcing column 26 is bolted to the joint piece 23J joined to the column head 21H of the column 21. At this time, the floor beam reinforcement metal fitting 103 having an L-shaped cross section is welded to the upper flange of the floor beam 22 and the inner surface of the web that are attached to the joint piece 22J, and the mounting plate 26A of the diagonal member 101 is seated on the joint piece 22J. The floor beam reinforcement hardware 103, the floor beam 22, the joint piece 22J, the bolt 104 inserted through the mounting plate 26A, and the nut 104A are joined.

The reinforcing frame 25 is bolted at the lower end of the stud 27 to the upper flange of the floor beam 22 and is bolted at the upper end of the stud 27 to the lower flange of the ceiling beam 23. At this time, a ceiling beam reinforcing metal 105 having a C-shaped cross section is provided between the upper and lower flanges of the ceiling beam 23 to which the upper end portion of the stud 27 is bolted.
Are welded.

In this embodiment, “joining so as not to substantially deviate” means “joining so that the joining part maintains a rectangular shape”, “joining so that the overlapping portions of the upper and lower beams do not deviate”, and the like. Including rigid joints, but also weaker joints than rigid joints. Further, the joining between the end portions of the beam includes joining in the vicinity of the end portion.

(Structure V: Column omission reinforcement structure) (FIGS. 23 to 34)
The construction method V is applied at the column omission corner portion of the building unit 20 (same for 30 and 40) (
FIG. 1, FIG. 2).

Example 1 (FIGS. 23 to 26)
The unit building 1A in FIG. 23 is a part of the unit building 1 in FIGS. 1 and 2, and is constructed by installing a plurality of building units 20 adjacent to each other in the left-right and up-down directions. 4
A wide continuous space in which the columns are omitted is formed by the individual column-omitted building unit 120.

As shown in FIG. 3, the building unit 20 typically includes four square steel pipe columns 21, four shape steel floor beams 22, and four shape steel ceiling beams 23. It is a framework structure joined to the shape. The building unit 20 is composed of four corners, and the floor beams 22 that intersect each other are connected to the joint piece 22J.
Is connected to the lower end of the column 21 and the crossing ceiling beam 23 is joined to the upper end of the column 22 by a joint piece 23J.

As shown in FIG. 24 and FIG.
One of the pillars 21 is omitted. Column omitted building unit 120 is
As for the floor beam 22, the floor beam 22 intersecting at three corner portions other than the column omitted corner portion.
Are joined to the lower end portion of the column 21 by the joint piece 22J, and the floor beams 22 that intersect each other are joined to each other by the joint piece 22K at the column omitted corner portion. In the column-omitted building unit 120, the ceiling beam 23 of the ceiling beam 23 that intersects the column-omitted corner portion is used as the joint ceiling beam 121, and the other ceiling beam 23 is the standard ceiling. The standard ceiling beam 23 and the upper end of the column 21 are joined by a joint piece 23J, and the joint ceiling beam 121 and the upper end of the column 21 are joined by a joint piece 23K.
1 and the ceiling beam 23 are joined by a joint piece 23L.

In the column omitted building unit 120, the cross-sectional strength of the joint ceiling beam 121 is made higher than the cross-sectional strength of the other standard ceiling beams 23. The joint ceiling beam 121 is made of C-shaped steel with a lip, and an end plate 122 is welded to an end portion on the column omitted corner portion side, and the joint piece 23L welded to the end portion does not cover the end plate 122. As described above, a part of the side portion of the joint piece 23 </ b> L is cut out like the cutout portion 123 along the periphery of the end plate 122. In the column omitting building unit 120, the dimensional accuracy of the surface position of the end plate 122 is ensured with the column 21 joined by the joint piece 23K as the reference position in the longitudinal direction of the joint ceiling beam 121.

In the column omitted building unit 120, a temporary column 124 is detachable at a column omitted corner portion.
The temporary pillar 124 is detachably coupled to the joint piece 22K of the floor beam 22 and the joint pieces 23L of the ceiling beams 23, 121 by attaching / detaching means such as bolts and pins.

In the unit building 1A, as shown in FIG. 23 (A), the column omission corner portion defined in each of the four column omission building units 120 (120A to 120D) is arranged in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

Between the corresponding column-omitted building unit 120A and the column-omitted building unit 120B, the ceiling beam 23 that is arranged so as to intersect with the column-omitted corner portions in the same plane including the column-omitted joint portion 2 is connected to the above-described joint. The ceiling beam 121 is used (FIGS. 24 and 25). In this way, the end plates 122 of the joint ceiling beam 121 facing each other at the column omitting joints 2 of both the building units 120A and 120B are parallel to each other through a certain gap. Therefore, between the end plates 122 of the opposite joint ceiling beam 121, the spacer 110 having a thickness selected to accommodate the gap.
Is sandwiched from above or from the side of the gap. In this embodiment, two spacers 110 are sandwiched between the upper and lower ends of the end plate 122. And the end plate 1 of the opposite joint ceiling beam 21
The two members 22 are rigidly joined together with the spacer 110 with a high-strength bolt 111 (FIG. 26). The high-strength bolt 111 is connected to the bolt insertion hole 122 </ b> A of the opposing end plate 122 and the spacer 11.
The zero bolt insertion hole 110A is inserted, and a nut 112 is fastened to the insertion end. In this embodiment, two high-strength bolts 111 on the left and right sides are used for one spacer 110. For this reason, it is rigidly joined in the longitudinal direction of the joint ceiling beam 121 and is also rigidly joined in a direction orthogonal to the horizontal direction, resulting in a substantially perfect rigid joint as a whole. As the high-strength bolt 111, a torcia shape, a hexagonal bolt shape, or the like can be adopted.

Also between the corresponding column-omitted building unit 120C and the column-omitted building unit 120D, the end plates 122 of the opposite joint ceiling beams 121 are connected together with the spacer 110 in the same manner as between the building unit 120A and the building unit 120B. High-strength bolt 111
Rigidly join with.

When the opposite end plates 122 of the joint ceiling beam 121 are joined between the corresponding building unit 120A and the building unit 120B, and between the building unit 120C and the building unit 120D, A temporary pillar 124 is installed.
Then, after the end plates 122 of the jointed ceiling beam 121 facing each other are joined, the temporary column 1
24 is removed.

According to the present embodiment, the following operational effects can be obtained.
(a) By connecting the joint ceiling beams 121 that intersect the column omission corner portions in each of the adjacent building units 120, the joint ceiling beams 121 are connected to the two building units 120.
It was unified like a long beam that spans over. Therefore, without using a long beam separate from the building unit 120, the unit building 1A without the pillar can be reinforced, and the manageability and workability of the material are good.

(b) The unit building 1A can be reinforced by the joint ceiling beam 121 itself which is a part of the ceiling beam 23 constituting the building unit 120, and there is no need to add a separate reinforcing member around the building unit 120. . Even when another building unit 20 is installed on the side of the building unit 120, there is no need to provide an installation gap for a reinforcing member between the other building units 20.

(c) The joint ceiling beam 121 that reinforces the unit building 1A by crossing the column-omitted joint portion of the unit building 1A has a cross-sectional strength high enough to compensate for the strength reduction due to the omission of the column, and the other ceiling beams 23 By setting the cross-sectional strength to a standard level, the cross-sectional strength of all the ceiling beams 23 of the building unit 120 can be made necessary and sufficient for each, and the economy of structural strength can be achieved.

(d) By joining the end plates 122 of the joint ceiling beams 121 of the adjacent building units 120 to each other with the high-strength bolts 111 via the spacers 110, the joint ceiling beams 121 can be easily joined together. The dimensional accuracy of the unit building 1A can be improved.

(e) The temporary column 124 provided at the column omitted corner portion of the building unit 120 is the building unit 1.
After the on-site installation through the 20 factory manufacturing stages and the transportation storage stage, it is not removed until the connection of the joint ceiling beam 121 is completed. Therefore, the strength of the building unit 120 at the time of connection of the joint ceiling beam 121 is not lowered, the building strength at the construction stage can be sufficiently secured, and the workability is good.

(Example 2) (FIG. 27)
The unit building 1B of FIG. 27 forms a large atrium space together with the upper floor building unit 30 on which two lower floor building units 120 constituting a part thereof are mounted.

The column omitted building unit 120 used in the second embodiment is the column omitted building unit 12 of the first embodiment.
The difference from 0 is that the two columns 21 adjacent to each other in the girder direction of the four columns 21 of the standard building unit 20 are omitted, and the two ceiling beams 23 along the wife direction are jointed together. 121, the girder-direction ceiling beam 23 intersecting the joint ceiling beam 121 is used as a temporary beam 125, and the temporary beam 125 is detachably coupled to the free end of the joint ceiling beam 121 by means of attaching / detaching means such as bolts and pins. This is what we made possible.

In the unit building 1B, as shown in FIG. 27 (A), two columns omitted for each of the two column omitted building units 120 (120A, 120B) are omitted in a part of the lower floor portion. The corner portions are arranged to face each other at the column omission joint portions 2 and 3.

As shown in FIG. 27B, between the column omitted building unit 120A and the column omitted building unit 120B, as in the first embodiment, the end plates 122 of the jointed ceiling beams 121 facing each other.
After joining together, the temporary pillar 124 is removed, and the temporary beam 125 is excised (simply removed).

And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120. FIG. Since the upper floor building unit 30 forms an atrium space above the lower floor building unit 120, the floor beam 22 corresponding to the temporary beam 125 of the lower floor building unit 120 is not provided from the beginning, or is cut off after mounting. The

In the unit building 1B, a large atrium space extending from the lower-floor building unit 120 to the upper-floor building unit 30 can be formed while securing structural strength by the joint ceiling beam 121.

Example 3 (FIG. 28)
The unit building 1C of FIG. 28 forms a staircase space together with the upper floor building unit 30 on which two lower floor building units 120 constituting a part thereof are mounted.

The column omitted building unit 10 used in the third embodiment is the column omitted building unit 120 of the first embodiment.
The difference is that the girder-direction ceiling beam 23 intersecting the joint ceiling beam 121 is connected to the joint ceiling beam 121.
The temporary beam 126A, which is a part of the crossing portion, and the remaining partial beam 126B. The temporary beam 126A is coupled to the free end portion of the joint ceiling beam 121 and the end portion of the partial beam 126B by an attaching / detaching means such as a bolt and a pin so that the beam can be cut off. An end portion of the partial beam 126B coupled to the temporary beam 126A is supported by a middle column 127 (not shown).

In the unit building 1C, as shown in FIG. 28 (A), the column omission corner portion defined in each of the two column omission building units 120 (120A, 120B) is arranged in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

As shown in FIG. 28B, between the column omitted building unit 120A and the column omitted building unit 120B, as in the first embodiment, the end plates 122 of the jointed ceiling beams 121 facing each other.
After joining together, the temporary pillar 124 is removed, and the temporary beam 126A is excised (simply removed).

And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120. FIG. The upper floor building unit 30 includes the temporary beam 126A and the partial beam 1 of the lower floor building unit 120.
Of the floor beam 22 corresponding to 26B, a part corresponding to the temporary beam 126A is not provided from the beginning, or is cut off after mounting.

In the unit building 1 </ b> C, a staircase space extending from the lower-floor building unit 120 to the upper-floor building unit 30 can be formed while securing structural strength by the joint ceiling beam 121.

Example 4 (FIGS. 29 and 30)
The unit building 1D of FIGS. 29 and 30 forms a wide continuous space in which the columns are omitted by the four column-omitted building units 120 on the lower floor as in the unit building 1A. The upper floor pillar-omitted building unit 130 is mounted on the upper floor, and a wide continuous space is formed by omitting the pillars by the four pillar-omitted building units 130 on the upper floor.

Therefore, in the unit building 1D, the ceiling beam 121 of the column-omitted building unit 120A on one side of the column-omitted joint 2 on the lower floor and the ceiling beam 12 of the column-omitted building unit 120B on the other side.
1 and the column omitting building unit 130A on one side of the column omitting joint portion 2 on the upper floor.
The floor-to-ceiling beam 131 and the floor-to-ceiling beam 131 of the other column-less building unit 130B are opposed to each other, and the joint-to-ceiling beam 121 of the lower-level column-less building unit 120A (120B) and the upper-level column-less building unit. A joint floor beam 131 of 130A (130B) is arranged in an overlapping manner.

Therefore, the joint-ceiling beam 121 and the joint-beam 131 of the column-omitted building units 120A and 130A on one side of the column-omitted joint 2 on the upper and lower floors, and the column-omitted building units 120B and 130B on the other side.
The joint ceiling beam 121 and the joint floor beam 131 are joined as follows.

(1) From the lower flange side of the joint-ceiling beam 121 of the column-omitted building unit 120A to the lower flange side of the joint-ceiling beam 121 of the column-omitted building unit 120B,
A joint member 142 having a cross-sectional shape extends. The joint material 141 is attached to the inner surface of the lower flange of the jointed ceiling beam 121. The joint member 142 is attached to the lower flange of the joint ceiling beam 121, the lower part of the web, and the outer surface of the lower lip.

Two high-strength bolts 143 are connected to the joint members 141, 142, one end side of the joint members 141, 142.
The high strength bolt 1 is inserted through the bolt insertion holes provided in the lower flanges of the joint ceiling beam 121.
The nut 143 </ b> A is fastened to the insertion end of 43. The two high strength bolts 143 are also inserted into the bolt insertion holes provided in the lower flanges of the joint materials 141 and 142 and the joint ceiling beam 121 on the other end side of the joint materials 141 and 142, and the high strength bolt 143 is inserted. Tighten the nut 143A to the end. As a result, one end side of the joint members 141 and 142 is rigidly joined to the joint ceiling beam 121 of the column omitted building unit 120A, and the other end side of the joint members 141 and 142 is rigidly joined to the joint ceiling beam 121 of the column omitted building unit 120B. To do.

(2) From the upper flange side of the joint-ceiling beam 121 of the column-omitted building unit 120A to the upper flange side of the joint-ceiling beam 121 of the column-omitted building unit 120B,
A joint material 152 having a cross-sectional shape extends. The joint material 151 is attached to the inner surface of the upper flange of the double joint ceiling beam 121. The joint material 152 is attached to the upper flange of the joint ceiling beam 121, the upper part of the web, and the outer surface of the upper lip.

Two high-strength bolts 153 are connected to one end side of the joint members 151 and 152 by the joint members 151, 152,
The upper flange of the joint ceiling beam 121, the lower flange of the joint floor beam 131 of the column omitted building unit 130A, and its joint piece 131J (joint piece for connecting the short column 131C to the column omitted end of the joint floor beam 131), a square washer The nuts 153 </ b> A are fastened to the insertion ends of the high strength bolts 153 through the bolt insertion holes provided in the respective 131 </ b> A. Joints 151, 152
Also on the other end side, two high-strength bolts 153 are connected to joint members 151 and 152, the upper flange of the joint ceiling beam 121, the lower flange of the joint floor beam 131 of the column-omitted building unit 130B, and its joint piece 131J (the joint beam). A joint piece for connecting the short column 131C to the column omitted end of 131) and a bolt insertion hole provided in each of the square washers 131A, and the high strength bolt 15
The nut 153 </ b> A is tightened to the insertion end 3. Thus, one end side of the joint members 151 and 152 is rigidly joined to the joint ceiling beam 121 and the joint floor beam 131 of the column omitting building units 120A and 130A, and the other end side of the joint members 151 and 152 is connected to the column omitting building unit 120B, It is rigidly joined to the joint ceiling beam 131 and the joint floor beam 131 of 130B.

In the unit building 1D, the joint ceiling beam 132 of the column omitted building unit 130A on one side of the column omit joint 2 on the upper floor and the joint ceiling beam 1 of the column omitted building unit 130B on the other side.
32 are joined by the same joining materials as the joining materials 141, 142, 151, 152 of the above (1) and (2).

According to the present embodiment, adjacent building units 120A and 130A and building unit 120B,
The joint ceiling beams 121 and 121 of 130B, the joint floor beams 131 and 131, and the joint material 14
The joint ceiling beams 121 and the joint floor beams 131 can be easily joined by rigid joining with high strength bolts 143 and 153 via 1, 142, 151 and 152, and the unit building 1
The dimensional accuracy of D can be improved.

FIGS. 31 to 34 show a guide collar 200 and an attachment 210 suitable for joining the end plates 122 of the joint ceiling beams 121 facing each other in the construction V, for example, in the unit building 1A. The guide collar 200 and the attachment 210 are positioned as follows when the bolt insertion holes 122A (the bolt insertion holes 110A of the spacer 110 are the same) provided in the end plate 122 of the opposite joint ceiling beam 121 are displaced. In combination, the high-strength bolt 111 can be inserted.

As shown in FIG. 31, the guide collar 200 is shorter than the thread length of the high strength bolt 111 and has an outer diameter smaller than the bolt insertion hole 122A of the end plate 122 and the bolt insertion hole 110A of the spacer 110. A hexagonal head 201 is provided on the proximal end side, a tapered taper 202 is provided on the distal end side thereof, and a through screw portion that is screwed onto the high-strength bolt 111 is provided. As shown in FIG. 32, the attachment 210 has a slit 211 that is smaller in diameter than the head 111 </ b> A of the high-strength bolt 111 and allows the threaded portion of the high-strength bolt 111 to pass through, and the threaded portion of the high-strength bolt 111 is passed through the slit 211. The guide collar 200 screwed to the high-strength bolt 111
The rotation stop part 212 which engages with the outer surface of the hexagon head 201 and stops the guide collar 200 is provided.

(1) The guide collar 200 is screwed onto the outer periphery excluding the tip of the high-strength bolt 111 (FIG. 33 (A
)).
(2) The tip of the high-strength bolt 111 is passed through the bolt insertion hole 122A provided in the end plate 122 of the opposite joint beam 121 (FIG. 33B). At this time, both end plates 1
If the bolt insertion hole 122A of 22 and the bolt insertion hole 110A of the spacer 110 are displaced, the guide collar 200 only enters the bolt insertion hole 122A of the first end plate 122.

(3) The nut 112 is fastened to the tip of the high strength bolt 111 protruding from the bolt insertion hole 122A of the end plate 122, and the high strength bolt 111 and the guide collar 200 are connected to the bolt insertion hole 122A of the two end plates 122 and the spacer 110. Are inserted into the bolt insertion holes 110A, and the bolt insertion holes 122A and 110A are coaxially aligned with each other (FIG. 3).
3 (C)-(E)).

(4) Remove the nut 112 from the high-strength bolt 111 (FIG. 3F).
(5) Loosen the high-strength bolt 111 from the guide collar 200, and the head 11 of the high-strength bolt 111.
An attachment 210 is interposed between 1A and the surface of the first end plate 122. The outer surface of the hexagon head 201 of the guide collar 200 is engaged with the anti-rotation portion 212 of the attachment 210 to prevent the guide collar 200 from rotating (FIGS. 34A and 34B).

(6) The high-strength bolt 111 is fastened to the attachment 210 to attach the attachment 21.
With 0 as a reaction force fulcrum, the guide collar is pulled out from the bolt insertion hole 122A of the end plate 122 and the bolt insertion hole 110A of the spacer 110 (FIGS. 34C and 34D).

(7) The guide collar 200 and the attachment 210 are removed from the bolt insertion hole 122A of the end plate 122 together with the high strength bolt 111 (FIG. 34E).

(8) Bolt insertion holes 122A and spacers 110 in which both end plates 122 have been aligned
The high-strength bolt 111 (or the high-strength bolt 111 removed from the guide collar 200) is inserted into the bolt insertion hole 110A, and the nut 112 is finally tightened at the insertion end, and the end plates 122 of the opposite joint ceiling beam 121 are connected to each other. Join.

Bolt insertion holes 122A (11 in the three or more positions of the end plate 122 (spacer 110)
0A), the guide collar 200 and the attachment 2 are installed in the bolt insertion holes 122A (110A) at least at two positions, preferably at two diagonal positions.
10 is used to perform the alignment operations (1) to (7) described above, all the bolt insertion holes 122A (1
10A) can be aligned.

Note that the alignment operation for a plurality of corresponding holes using the guide collar 200 and the attachment 210 is not limited to the construction method V, but is provided for each of two opposed beams (including plates) in the construction method II. It can also be employed in the alignment of bolt insertion holes and the alignment of bolt insertion holes provided in the opposite side walls of the pipe columns arranged in the construction method III.

According to the present embodiment, by using the guide collar 200 and the attachment 210, the displacement of the bolt insertion holes 122A of the opposing joint ceiling beam 121 is corrected, the bolt insertion holes 122A are easily aligned, and high strength is achieved. The bolts 111 can be easily inserted into the bolt insertion holes 122A, and the joint ceiling beams 121 can be easily joined.

Further, even when the spacer 110 is sandwiched between the opposing joint ceiling beams 121, the bolt insertion holes 122A and 110A provided in the joint ceiling beam 121 and the spacer 110 can be easily aligned.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, 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. For example, the building unit of the present invention may be such that three or more column-omitted building units are butt-joined to each other at the column-omitted corner portions at the column-omitted joint portion.

FIG. 1 is a perspective view showing a unit building. FIG. 2 is a schematic perspective view showing a unit building. FIG. 3 is a perspective view showing the building unit. FIG. 4 is a schematic front view showing a building unit to which construction method I is applied. FIG. 5 is a cross-sectional view showing a specific structure of the construction method I. FIG. 6 is a schematic front view showing a unit building to which construction method II is applied. FIG. 7 shows a specific structure of construction method II, where (A) is a front view and (B) is a cross-sectional view. 8A and 8B show the principle of strengthening the rigidity of a beam of construction method II, where FIG. 8A is a schematic diagram showing the deformation state of the beam, FIG. 8B is a schematic diagram showing a beam unit model, and FIG. FIG. 9A and 9B show the principle of rigidity enhancement of the unit frame of the construction method II, FIG. 9A is a schematic diagram showing a deformed state of a beam, and FIG. 9B is a schematic diagram showing a rigid frame model. FIG. 10 is a schematic diagram showing a joint structure by the construction method III of adjacent building units. FIG. 11 is a cross-sectional view showing a main part of FIG. FIG. 12 is a schematic diagram illustrating an example of joining of building units. FIG. 13 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is a cross-sectional view taken along line BB of (A). FIG. 14 is a perspective view showing a perforated spacer. FIG. 15 shows a modified example of the construction method III, (A) is a plan view showing a joint portion of a lower floor building unit, and (B) is a sectional view taken along line BB in (A). FIG. 16 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is a sectional view taken along line BB of (A). FIG. 17 shows a building unit to which construction method IV is applied, (A) is a front view showing the lowest floor building unit, and (B) is a front view showing the upper floor building unit. FIG. 18 is a schematic diagram showing the principle of rigidity enhancement of the frame of the construction method IV. FIG. 19 is a schematic diagram showing an example of strengthening the rigidity of the frame of construction method IV. FIG. 20 is a front view showing an example of attaching diagonal members of the construction method IV. FIGS. 21A and 21B show a lower end attachment portion of the diagonal member, where FIG. 21A is a front view and FIG. 21B is a cross-sectional view. FIG. 22 is a cross-sectional view showing an intermediate portion of the ceiling beam to which the upper end portion of the diagonal member is attached. FIG. 23 shows a unit building of Example 1 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, (B) is a schematic plan view after reinforcement with a joint ceiling beam, and (C) is It is a schematic side view of (B). FIG. 24 is a plan view showing a joined state of both building units. FIG. 25 is a front view showing both building units before joining. FIG. 26 shows a joint portion between both building units, (A) is a front view in a state in which the lip portion of the beam is omitted, and (B) is a side view. FIG. 27 shows a unit building of Example 2 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a schematic plan view after reinforcement with a joint ceiling beam. FIG. 28 shows a unit building of Example 3 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a schematic plan view after reinforcement with a joint ceiling beam. FIG. 29 is a front view showing a joined state of the building unit of the fourth embodiment according to construction method V. FIG. FIG. 30 is a side view of FIG. FIG. 31 is a perspective view showing a guide collar used in the construction method V. FIG. FIG. 32 is a perspective view showing an attachment used in the construction method V. FIG. FIG. 33 is a schematic diagram showing a guide color pull-in procedure in the construction method V. FIG. 34 is a schematic diagram showing a guide color drawing procedure in the construction method V.

Explanation of symbols

1A to 1D Unit building 2, 3 Column omission joint 20 Building unit 21 Column 22 Floor beam 23 Ceiling beam 110 Spacer 111 High strength bolt 120 Column omission building unit 121 Joint ceiling beam 122 End plate 124 Temporary column 125 Temporary beam 126A Temporary beam 126B Partial beams 141, 142, 151, 152 Joint 200 Guide collar 210 Attachment

Claims (9)

In a unit building constructed by installing building units adjacent to each other with columns, floor beams and ceiling beams,
Column omission corners determined for each of a plurality of adjacent building units are arranged to face each other at the column omission joint,
The ceiling beam crossed and arranged at the corner where the column is omitted in the same plane including the column-omitted joints of adjacent building units is used as the joint ceiling beam.
A unit building characterized in that jointed ceiling beams are joined to each other at the column omission joints of adjacent building units. The unit building according to claim 1, wherein the cross-sectional strength of the joint ceiling beam constituting the building unit is higher than the cross-sectional strength of the other ceiling beams of the building unit. An end plate is welded to the end portion of the joint ceiling beam on the side where the column is omitted, and a spacer is sandwiched between the end plates of the opposing joint ceiling beam, and the end plates of the joint ceiling beam are connected to each other with a high-strength bolt. The unit building according to claim 1 or 2 joined by. Extending from the side of the ceiling-ceiling beam on one side of the column-omitted joint, to the side of the ceiling-ceiling beam on the other side,
A joint material attached to the joint ceiling beams is provided, one end side of the joint material is joined to one joint ceiling beam, and the other end side of the joint material is joined to the other joint ceiling beam. Or the unit building of 2. Both the building units are set as lower-floor building units, and the ceiling beams crossing the joint ceiling beams are cut off at the column-omitted corner portion of the lower-floor building units,
Of the floor beams of the upper floor building unit mounted on the lower floor building unit, no one corresponding to the excised part of the ceiling beam of the lower floor building unit is provided,
The unit building in any one of Claims 1-4 which formed the atrium space from a lower floor building unit to an upper floor building unit. Both the building units are set as lower-floor building units, and a part of the ceiling beam that intersects the joint ceiling beam is cut off at a column omitted corner portion of the lower-floor building unit,
Of the floor beams of the upper floor building unit mounted on the lower floor building unit, the part corresponding to the cut portion of the ceiling beam of the lower floor building unit is not provided,
The unit building according to any one of claims 1 to 4, wherein a staircase space extending from the lower floor building unit to the upper floor building unit is formed. In the construction method of the unit building in any one of Claims 1-6, as a building unit from which a pillar is abbreviate | omitted, what uses a temporary pillar as a column omission corner part so that attachment or detachment is possible, and a ceiling beam is attached to a building unit. A method for constructing a unit building, in which a temporary column is provided until connection is completed, and the temporary column is removed after connection of the joint ceiling beam is completed. It is the joining method of the joint ceiling beam in the unit building in any one of Claims 1-6,
Screw the guide collar around the outer circumference excluding the bolt end, pass the tip of the bolt through the bolt insertion hole of the opposite ceiling beam, tighten the nut to the tip of the bolt protruding from the bolt insertion hole, and tighten the bolt and guide collar. Pulling into the bolt insertion holes of the opposing joint ceiling beams and aligning the bolt insertion holes with each other, loosening the bolts from the guide collar, and preventing rotation for the guide collar between the bolt head and the joint ceiling beam Interposing an attachment comprising a portion, tightening a bolt with respect to the attachment, and pulling out the guide collar from the bolt insertion hole of the joint ceiling beam,
A method of joining jointed ceiling beams, comprising: inserting bolts into aligned bolt insertion holes of opposing joint ceiling beams; and finally tightening nuts at the ends of the bolts protruding from the bolt insertion holes. The joint method of a joint ceiling beam according to claim 8, wherein a spacer is sandwiched between the opposing joint ceiling beams, and bolt insertion holes provided in each of the opposing joint ceiling beams and the spacer are aligned with each other.

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