JP4568402B2 - Unit building and its construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit building that can form a wide continuous opening and a living room space that is not obstructed by a pillar, and a construction method thereof.
[0002]
[Prior art]
Conventionally, as a unit building capable of forming a wide and continuous opening or living room space that is not obstructed by a pillar, there is a technique as described in JP-A-8-277580. This technology uses a unit building constructed by adjoining a building unit in which columns, floor beams, and ceiling beams are joined in a box shape. At least one column omitted corner portion defined for each of a plurality of building units is provided as a column. Widely continuous openings and living room spaces composed of a plurality of building units are formed by abutting each other at the omitted joints.
[0003]
In order to ensure the required structural strength of the column omission joint, a long reinforcing beam that extends from the ceiling beam side of the building unit on one side of the column omission joint to the ceiling beam side of the other building unit is connected to the adjacent unit. Attached to the gap. In the concrete structure of the reinforcement, both ends of the reinforcing beam are connected to the circumference of the column of the building unit on one side of the column omission joint and to the circumference of the column of the building unit on the other side of the column omission joint, respectively. The column omission corners of a plurality of building units are connected to the central part of the building.
[0004]
[Problems to be solved by the invention]
However, in the prior art, a frame-shaped building unit having a column, a floor beam, and a ceiling beam is used as a frame component. For this reason, the load is received by the floor beam and the ceiling beam, and in order to secure the necessary structural strength, a certain amount of beam back (height dimension of the beam) is required. Therefore, there was a problem that the ceiling height could not be increased.
[0005]
In addition, in order to form a wide and continuous opening or living room space that is not obstructed by the pillars by a plurality of building units, the ceiling beams that are arranged to face each other at the column-omitted joints of adjacent building units In order to ensure the necessary structural strength by joining, it is essential to use long reinforcing beams attached to the ceiling beams. For this reason, a reinforcing beam as a long part is required, and a great number of man-hours are required for attaching the reinforcing beam to the ceiling beam, which makes the configuration and construction complicated and expensive.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to simplify the configuration and construction and reduce the cost when it is possible to form a wide continuous opening and a living room space that is not obstructed by a pillar in a unit building.
[0007]
[Means for Solving the Problems]
  The present invention according to claim 1 is a unit building in which a plurality of box-shaped building units that are provided with columns and floor beams as a frame component and do not include a ceiling beam as a frame component are vertically and horizontally installed adjacent to each other. Therefore, the floor beams that are arranged to face each other in adjacent building units are rigidly connected to each other, and the column below the rigidly connected floor beams is omitted.Each of the adjacent building units is at least one column-omitted building unit, and each column-omitted corner portion is arranged to face each other at a column-omitted joint, and the columns of the adjacent building units are omitted. The floor beams that are arranged to face each other at the joint are rigidly joined together, and the floor beams of the adjacent building units are rigidly joined via joint pieces, and the joint pieces have flanges on both side ends of the web. It is composed of a pair of attachment plates formed in a U-shaped cross section provided, the width between the inner surfaces of the flanges facing each other is substantially the same as the outer width of the floor beam, and the joint piece is between the floor beams Are fastened with high-strength bolts so as to enclose each of them from above and below.It is a unit building characterized by this.
[0008]
In the above description, the floor beams arranged to face each other include those arranged in abutted state with an interval. That is, the floor beams are not necessarily in contact with each other.
[0013]
The U-shaped joint piece may be formed of channel steel, or may be formed by fixing flanges to both ends of the web by welding or the like.
[0015]
It is preferable that the section modulus and the second moment of section of the joint piece are larger than the section modulus and the second moment of section of the floor beam.
[0016]
  According to a second aspect of the present invention, the other floor beam substantially orthogonal to the floor beams that are rigidly joined to each other is arranged at the column-omission joints of the adjacent building units. It is rigidly joined to the floor beam via a low gusset plate, and the pair of joint pieces are fastened with high-strength bolts so as to enclose each of the floor beams from above and below. The unit building according to claim 1.
  According to a third aspect of the present invention, the pair of joint pieces are provided by being fastened with a high-strength bolt via an inner attachment plate so as to enclose each of the floor beams from above and below. It is a unit building of Claim 1 or 2 characterized by the above-mentioned.
  Claim4The present invention according to claim 1, wherein a temporary pillar is detachably provided at a pillar omitted corner portion of the building unit.3One of1 itemIt is a unit building described in.
[0017]
  Claim5The present invention according to claim 1, wherein an opening that extends to adjacent building units is provided in a column omitting joint portion of the adjacent building units.4One of1 itemIt is a unit building described in.
[0018]
  Claim6The present invention according to claim 1, wherein a column-less space continuous to the adjacent building units is formed in the column omitting joint portion of the adjacent building units.5One of1 itemIt is a unit building described in.
[0019]
  Claim7The present invention described in claim 16One of1 itemThe building method for building a unit building as described in 1), wherein the column unit is omitted as a building unit in which a temporary column can be freely attached to and removed from the column-omitted corner portion, and the floor beams to be butt-arranged are rigidly joined together. Has a temporary pole,The floor beams arranged to be butted together are rigidly joined by fastening the pair of joint pieces with high-strength bolts,It is a construction method for a unit building characterized in that a temporary column is removed after completion of rigid joining of floor beams arranged to face each other.
[0021]
As the joint piece in the present invention, the floor beams to be butt-arranged can be rigidly joined to each other, and can be attached to or fitted to the floor beam in the same shape as the splicing plate (splice plate) made of steel. The thing etc. are used. The joint piece may be composed of a plurality of members or may be an integral one.
[0022]
[Action]
According to the present invention of claim 1, the following effect (1) is obtained.
(1) A building unit that does not have a ceiling beam is used, and the floor beams that are arranged to face each other in adjacent building units are rigidly joined to each other, so that the floor beams arranged against each other have the necessary structural strength. It is the same as the single beam, and the column below it can be omitted, making it possible to form a wide and continuous opening and living room space that is not obstructed by the column while simplifying the construction and construction. Moreover, since the ceiling beam as a frame component is not provided and the floor beam is the only beam to receive the load, the floor beam can be connected to the conventional floor beam and ceiling beam even if the required structural strength is ensured. The back of the added beam can be made lower, the ceiling of the living room space can be raised, and a wider living room space can be formed. This is because the strength of a single beam with a beam back of 2H is four times stronger than the strength of two beams with a beam back of H superimposed on the section modulus of the beam. You can be short.
[0023]
  Claim1According to the present invention, the following effect (2)Alsois there.
  (2) Each of the adjacent building units is at least one column-omitted building unit, and is configured by rigidly joining the floor beams arranged to face each other at the column-omitted joint portion of the adjacent building units. In addition, it is possible to form a wide and continuous opening and a living room without being blocked by a pillar even on the upper floor where the wide and continuous opening and a living room can be formed while simplifying the construction.
[0024]
  Claim1According to the present invention, the following action (3)Alsois there.
  (3) By rigidly joining the floor beams that are arranged to face each other via the joint piece, the floor beams can be rigidly joined easily and reliably.
[0025]
  Claim1According to the present invention, the following effect (4)Alsois there.
  (4) Since the joint piece is a splicing plate that joins the top and bottom of the floor beams, rigid joining is simple and the necessary structural strength can be reliably ensured.
[0026]
  Claim1According to the present invention, the following effect (5)Alsois there.
  (5) Since the joint piece is an attachment plate made of a steel material having a U-shaped cross section for joining the upper and lower sides of the floor beams, it becomes an integral joint piece, making rigid joining easier and more necessary structure The strength can be secured reliably.
[0027]
  Claim1According to the present invention, the following effect (6)Alsois there.
  (6) The joint piece is composed of a pair of attachment plates formed in a U-shaped cross section with flanges provided on both side ends of the web, and the width between the inner surfaces of the facing flanges is substantially equal to the outer width of the floor beam. Since the joint piece is provided so as to enclose each of the floor beams from above and below, the adjustment of the street beams arranged to face each other can be easily performed, and the assembly accuracy can be improved.ImprovementTo do. Moreover, since each attachment plate has a flange, it is easy to make the section modulus and the section moment of the joint piece equal to or greater than the section moment of the floor beam. Moreover, the web of each attachment board can be easily provided with the equivalent cross section which bears the shear force added to the butt | matching part of floor beams. That is, since a reinforcing plate other than the joint piece is not required, the rigid joining is simpler and the necessary structural strength can be reliably ensured.
[0028]
  Claim4The present invention has the following effect (7).
  (7) By making the temporary column detachable at the column omission corner portion of the building unit, it is possible to secure rigidity at the factory production stage, transportation storage stage, and on-site installation stage of the building unit. For example, a building unit has a ceiling panel that is not a frame component supported by the upper end of a pillar,FromCan be supported by temporary poles at the site installation stage.
[0029]
  Claim5The present invention has the following effect (8).
  (8) A large and continuous large opening over adjacent building units can be formed.
[0030]
  Claim6The present invention has the following effect (9).
  (9) A large and continuous large living room space between adjacent building units can be formed.
[0031]
  Claim7The present invention has the following effect (10).
  (10) Temporary columns provided at the corners of the building units where the columns are omitted are not removed until the rigid connection between the floor beams to be butt-arranged is completed at the factory installation stage of the building units and the on-site installation stage after the transportation storage stage. . Therefore, the building strength at the construction stage can be sufficiently secured without lowering the strength of the building unit at the time of rigid joining of the floor beams arranged to face each other, and the workability is good.
[0032]
  Claim7According to the present invention, the following effect (11)Alsois there.
  (11) Since the floor beams arranged in abutment are rigidly joined to each other with a joint piece and a high-strength bolt, construction is easy.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of a unit building and its construction method according to the present invention will be described below with reference to the drawings. Figure 1Reference example 1(A) is a perspective view which shows an installation state, (B) is a perspective view which shows a floor beam joining state, (C) is a perspective view which shows a large opening part formation state. Figure 2Reference Example 1The construction state of a unit building is shown, (A) is a plan view showing an installation state, and (B) is a plan view showing a floor beam joining state. Figure 3Reference Example 1A floor beam joining structure is shown, (A) is a perspective view, (B) is a top view. Figure 4Reference Example 1It is a perspective view which shows a joint piece. FIG.Reference example 2FIG. 6 is a plan view showing the unit building of FIG.Reference example 3FIG. 7 is a plan view showing the unit building of FIG.Reference example 4It is a top view which shows a unit building. Figure 8Reference Example 5(A) is a perspective view which shows an installation state, (B) is a perspective view which shows a large opening part formation state. Figure 9Of the present inventionIt is a perspective view which shows an example of a building unit, (A) is a standard building unit, (B) is a pillar omission building unit. FIG.Of the embodimentBuilding unitExampleFIG. FIG.Of the embodimentColumn omitted building unitExampleFIG. 12 is a plan view showingOf the first embodimentIt is the top view (A) and side view (B) of a pillar omission corner part. FIG.Of the first embodimentJoint pieceExampleFIG. FIG.Is realForm1FIG. 15 is a perspective view showing a floor beam joining structure of FIG.Embodiment 1FIG. 2A is a cross-sectional view, FIG. 3B is a plan view, and FIG. 3C is a side view. FIG.Of the first embodimentIt is sectional drawing which shows the joining state of a foundation and a floor beam. FIG.Reference Example 6FIG. 18 is a perspective view showing the unit building of the building and its floor beam joining state.Reference Example 6It is a side view which shows the floor beam joining state of. FIG.Embodiment 2It is sectional drawing which shows the floor beam joining state of.
[0034]
  (Reference example 1(FIGS. 1-4, 9)
  The unit building to which the present invention is applied uses, for example, a standard building unit 10 as shown in FIG. 9 and is constructed using a pillar omitted building unit 20A obtained by modifying the standard building unit 10, and the building units 10, 20A are It is constructed by joining horizontally and vertically.
[0035]
As shown in FIG. 9, the standard building unit 10 includes a column 11 made of a square steel pipe or the like and a floor beam 12 made of a grooved steel with a lip or the like as a frame component, and does not have a ceiling beam as a frame component. Specifically, the standard building unit 10 includes a connecting piece 11A at the lower end of the pillar 11 disposed at each of the four corners, and the end of the floor beam 12 is overlapped or protruded on the connecting piece 11A. It is a box-shaped frame structure joined together and supports the ceiling panel 13 on the upper end of the column 11.
[0036]
The column omitted building unit 20 </ b> A includes at least one corner portion of the four corner portions of the standard building unit 10 as a column omitted corner portion 21, and the column omitted corner portion 21 includes a temporary column 23. In the embodiment of FIG. 9, the two corner portions are the column omitted corner portions 21 and 21. The temporary column 23 is detachably attached to the floor beam 12 at the column omitted corner portion 21 (FIGS. 9 and 1 to 3).
[0037]
However, the unit building 1A according to the first embodiment is a part of the unit building 1A, in which two column-omitted building units 20A and 20A are arranged adjacent to each other in the horizontal direction, and two more column-omitted buildings are provided thereon. Units 20A and 20A are arranged adjacent to each other in the horizontal direction.
[0038]
That is, in the unit building 1A, two column omitting corner portions 21A and 21B are provided in two adjacent column omitting building units 20A and 20A, respectively, and these column omitting corner portions 21A and 21B are joined to each other. The parts 22 are arranged to face each other. Then, the floor beams 12 that are arranged to face each other at the column-omitted joint portions 22 of the column-omitted building units 20 </ b> A and 20 </ b> A that are adjacent to each other are rigidly joined via the joint piece 30. The column omitted building unit 20A includes provisional columns 23 at the column omitted corner portions 21A and 21B.
[0039]
At this time, for example, as shown in FIG. 4, the joint piece 30 includes two main flat portions 31 made of channel steel and two flat plates provided at two positions in the longitudinal direction of the outer surface of the main joint 31. Two sub-joints 32, 32 made of a steel plate are provided. Then, in the column omitting building units 20A and 20A adjacent to each other, as shown in FIG. 3, the end portions of the floor beams 12 and 12 arranged in series on the same straight line at the column omitting joint portion 22 are connected to the main joint portion 31. And rigidly joined to each other with high-strength bolts 33 such as torcia bolts through the main joint portion 31, and the end portions of the floor beams 12 and 12 arranged in parallel to each other are inserted into the sub-joint portion 32. The sub-joint portion 32 is rigidly joined with a high-strength bolt 34 such as a Torcia bolt. The floor beams 12 and 12 are brought into close contact with the upper and lower flanges of the floor beam 12 by the joint piece 30 and the high-strength bolts 33 so that the upper and lower flanges of the main joint 31 of the grooved steel of the joint piece 30 become the attached plates 311 and 311. Rigidly joined by friction joining. In addition, the joint piece 30 is not limited to the thing of this embodiment, What is necessary is just the floor beams 12 can be rigidly joined.
[0040]
Therefore, the installation procedure of the column omitting building units 20A and 20A in the unit building 1A is performed as follows.
[0041]
(1) Two adjacent column-omitted building units 20A and 20A are arranged adjacent to each other on a base 50 prepared in advance, and further, two adjacent columns-omitted building units 20A and 20A are arranged on these. (FIG. 1 (A), FIG. 2 (A)). At this time, the two column omission corner portions 21A and 21B provided in each of the building units 20A and 20A are arranged to face each other at the column omission joint portion 22.
[0042]
(2) The floor beams 12 and 12 arranged to face each other at the column omitting joint portions 22 of the column omitting building units 20A and 20A adjacent to each other on the first floor are fastened to the foundation 50 by anchor bolts 51 and 51. The floor beams 12, 12 and the adjacent floor beams 12, 12 that are arranged to face each other at the column-omitted joint unit 22 of the second floor portion of the column-omitted building units 20 </ b> A, 20 </ b> A are joined together by the joint piece 30. The high-strength bolts 33 and 34 are used for rigid joining (FIGS. 1B and 3B).
[0043]
(3) The ceiling panels 13 of the adjacent column-omitted building units 20A and 20A on the first floor portion are joined to the floor beams 12 of the column-omitted building units 20A and 20A on the second floor using a joint or the like. The ceiling panels 13 of the adjacent column-omitted building units 20A and 20A on the second floor are joined to a roof beam (not shown) using a joining tool or the like.
[0044]
(4) In the column omitting building units 20A and 20A adjacent to each other on the first and second floors, the temporary columns 23 provided in the column omitting corner portions 21A and 21B are removed (FIGS. 1B and 2B). )).
[0045]
(5) Widely continuous living room spaces and large openings 24 across the adjacent building units 20A and 20A are provided at the column omitting joint portions 22 of the adjacent column omitting building units 20A and 20A on the first and second floors. (FIG. 1C).
[0046]
  Therefore,Reference example 1Has the following effects.
  (1) The building unit 20A is not provided with a ceiling beam, and the floor beams 12, 12 of the building units 20A, 20A adjacent to each other are rigidly joined to each other, thereby being arranged to face each other. The floor beams 12 and 12 are the same as one beam having the necessary structural strength, the temporary columns 23 and 23 below the beam can be omitted, and the structure and construction are simplified and the column 11 is not obstructed. A wide and continuous opening 24 and living room space can be formed. Moreover, since the floor beam 12 is the only beam that receives a load without having a ceiling beam as a frame constituent material, the back of the floor beam 12 can be connected to the conventional floor beam and ceiling beam even if the necessary structural strength is ensured. It can be made lower than the back of the beam plus, and the ceiling of the living room space can be raised, and a wider living room space can be formed.
[0047]
(2) Each of the adjacent building units is defined as two column-omitted building units 20A and 20A, and the floor beams 12 and 12 arranged to face each other at the column-omitted joint portion 21 of the adjacent building unit 20A. Even in the upper floor of the floor where the wide and continuous opening 24 and the living room space can be formed while simplifying the construction and construction by rigid joining, the wide and continuous opening 24 and the living room that are not obstructed by the pillar 11 A space can be formed.
[0048]
(3) By rigidly joining the floor beams 12, 12 to be arranged to face each other via the joint piece 30, the floor beams 12, 12 can be rigidly joined easily and reliably.
[0049]
(4) Since the joint piece 30 is a spliced plate made of grooved steel that joins the upper and lower sides of the floor beams 12 and 12 together, it becomes an integral joint piece, and it is easier and more rigid to join. The structural strength can be ensured reliably.
[0050]
(5) By making the temporary column 23 detachable from the column omitting corner portion 21 of the building unit, it is possible to secure rigidity of the building unit 20A at the factory production stage, the transportation storage stage, and the field installation stage. For example, the building unit 20A can support the ceiling panel 13 that is not a frame component supported by the upper end portion of the column by the temporary column 23 in the factory production stage to the field installation stage.
[0051]
(6) A large and continuous large opening 24 and a large living room space across adjacent building units 20A and 20A can be formed.
[0052]
(7) The temporary column 23 provided in the column omitting corner portion 21 of the building unit 20A is in the factory installation stage of the building unit and the on-site installation stage after the transportation storage stage until the rigid joining of the floor beams to be butt-arranged is completed. Not removed. Therefore, the building strength at the construction stage can be sufficiently secured without reducing the strength of the building unit at the time of rigid joining between the floor beams 12 and 12, and the workability is good.
[0053]
(8) Since the floor beams 12, 12 arranged to face each other are rigidly joined by the joint piece 30 and the high-strength bolt 33, the construction is simple.
[0054]
  (Reference example 2(Fig. 5)
  Reference example 2In the unit building 1B, in each of the first and second floor portions, one column omitting corner portion 21 is defined for each of the two adjacent column omitting building units 20A and 20B, and the column omitting corner portions 21 are defined. The column omission joints 22 are arranged to face each other, and the floor beams 12 and 12 that are arranged to face each other at the column omission joint units 22 of the column omission building units 20A and 20B adjacent to each other on the second floor are joined to each other. It is rigidly connected via. The column omitting building units 20 </ b> A and 20 </ b> B include temporary columns 23 at the column omitting corner portions 21, and the temporary columns 23 are removed after the floor beams 12 and 12 are rigidly connected to each other. The unit building 1 </ b> B allows a large opening extending over adjacent column-omitted building units 20 </ b> A and 20 </ b> B to be formed in the column-omitted joint 22.
[0055]
  (Reference example 3(Fig. 6)
  Reference example 3In the unit building 1C, in each of the first and second floor parts, one column omitting corner portion 21 is defined for each of the four column omitting building units 20A to 20D adjacent to each other, and these column omitting corner portions 21 are defined as The floor beams 12 that are arranged to face each other at the column omission joint portion 22 and are arranged to face each other at the column omission joint portions 22 of the adjacent column omission building units 20A to 20D on the second floor part via the joint piece 30. It is a rigid joint. The column omitting building units 20 </ b> A to 20 </ b> D include temporary columns 23 at the column omitting corner portions 21, and the temporary columns 23 are removed after the floor beams 12 are rigidly joined. The unit building 1 </ b> C can form a large and continuous large living room space 25 that extends over adjacent column-omitted building units 20 </ b> A to 20 </ b> D.
[0056]
  (Reference example 4(Fig. 7)
  Reference example 4The unit building 1D has six column-omitted building units 20A to 20F adjacent to each other on the first and second floor portions, and two column-omitted corner portions 21 are provided on the building units 20A, 20C, and 20E. The building unit 20B has four column omitted corner portions 21 and the building units 20D and 20F have one column omitted corner portion 21. These column omitted corner portions 21 are connected to the column omitted joint portions 22A to 22D. The floor beams 12 that are arranged to face each other and are arranged to face each other in the column omitted joint portions 22A to 22D of the adjacent column omitted building units 20A to 20F on the second floor are rigidly connected via the joint piece 30. It is joined. The column omitting building units 20 </ b> A to 20 </ b> F include temporary columns at the column omitting corner portions 21, and the temporary columns are removed after the rigid connection between the floor beams 12. The unit building 1D has a large opening 24 in the column omitted joint portions 22A and 22B of three adjacent column omitted building units 20A to 20C, and a column omitted joint of six adjacent column omitted building units 20A to 20F. The large room space 25 can be formed in the portions 22C and 22D.
[0057]
  (Reference Example 5(Fig. 8)
  Reference Example 5In the unit building 1E, floor beams 12 and 12 are rigidly connected to each other on the corresponding upper and lower floors. That is, the unit building 1EReference example 1In addition to arranging the adjacent two-column omitted building units 20A, 20A on the lower floor as the lower-floor bonded body on the lower floor, two adjacent column-omitted building units 20A , 20A joined as the upper floor joined body on the second floor joined body. The unit building 1E can form large openings 24 (or large living room spaces) on the second and third floors in addition to the first floor.
[0058]
  (ActualOutofForm1(FIGS. 10 to 16)
  FruitOutofForm1The unit building shown in FIG. 10 is adopted as the standard building unit 10. The standard building unit 10 of FIG. 10 is composed of a box-shaped frame structure in which a column 11 made of a steel pipe and a floor beam 12 made of grooved steel with a lip are joined. The outer diaphragm 11B is welded to a column joint portion which is a corner portion of a floor beam frame 121 formed by framing four floor beams 12 in a rectangular shape, and the columns 11 are inserted into the outer diaphragms 11B, and the columns 11 and the outer diaphragms. 11B is welded and configured without a ceiling beam. A ceiling panel 13 is supported on the upper end of the column 11.
[0059]
In the column omitted building unit 20, at least one of the four corner portions of the standard building unit 10 of FIG. In the embodiment shown in FIG. 11, the two corner portions are the column omitted corner portions 21 and 21. Temporary columns 23 and 23 are detachably attached to the floor beams 12 and 12 of the column omitted corner portions 21 and 21. In the column omitted corner portion 21, the floor beams 12 and 12 are orthogonal to each other, but one floor beam 12 is extended, and the other floor beam 12 is connected to the side surface of the extended floor beam 12 via a gusset plate 122. It is connected.
[0060]
As shown in FIG. 12, a gusset plate 122 is welded and fixed to the tip of the other floor beam 12, and is rigidly bonded to the web surface, which is the side surface of the one floor beam 12, by high-strength bolts 123 such as Torcia bolts. ing.
[0061]
  ThisThe fruitOutofForm1By using the standard building unit 10 and the column omitting building unit 20, a unit building having a floor plan configuration having a large and continuous large opening and a large living room space similar to those in the first to fifth embodiments can be constructed.
[0062]
  At this time, thisThe fruitOutofForm1In FIG. 13, a joint piece 30 as shown in FIG. 13 is used for joining the floor beams 12, 12 that are arranged to face each other between the two column-omitted building units 20, 20. That is, outer splicing plates (outer splice plates) 31 and 31 made of channel steel that can be mounted on the upper and lower portions of the floor beam 12, and inner splicing plates (inner splices) that can come into contact with the flange inner surfaces of the upper and lower portions of the floor beam 12. The joint piece 30 is composed of the plates 31A and 31A.
[0063]
As shown in FIG. 14, the floor beams 12, 12 that are arranged to face each other between the two column-omitted building units 20, 20 are connected to each other using upper and lower outer attachment plates 31, 31 and inner attachment plates 31 A, 31 A. And rigidly join with high strength bolts such as Torcia bolts.
[0064]
Then, as shown in FIG. 15, the upper and lower outer attachment plates (attachment plates) 31 and 31 and the inner attachment plates 31 </ b> A and 31 </ b> A span between the floor beams 12 and 12, and sandwich the upper and lower flanges of the floor beams 12 and 12. By fastening with the high-strength bolt 33, rigid joining by friction joining is achieved. At this time, the section modulus (Z) of the upper and lower outer attachment plates 31 and the inner attachment plate 31A is set to be larger than the section modulus (Z) of the floor beam 12 so that the necessary joint strength can be sufficiently exhibited. ing. The external accessory plates 31 and 31 made of channel steel correct the linearity of the floor beams 12 and 12 that are arranged to face each other.
[0065]
If the contact surfaces of the floor beam 12, the outer attachment plate 31 and the inner attachment plate 31A are roughened by pickling, shot blasting, sanding or the like, the bonding strength is further increased. Depending on the required strength, the outer attachment plate 31 may be a flat plate, or only one of the outer attachment plate 31 and the inner attachment plate 31A may be used.
[0066]
The floor beam 12 and the foundation 50 may be joined with an anchor bolt 51 as shown in FIG.
[0067]
  UpRealOutofForm1IsReference example1 toReference Example 5Has the same effect asReference example1 toReference Example 5In addition toAhThethisImplementationofForm1Since the joint piece 30 consists of the attachment plates 31 and 31A, the structure is simple and inexpensive. Moreover, since the external attachment plate 31 is made of channel steel, the straightness of the floor beams 12, 12 can be corrected, and a unit building with better dimensional accuracy can be obtained.
[0068]
  (Reference Example 6(Fig. 17, Fig. 18)
  Reference Example 617, the upper floor building units are standard building units 10 and 10, and the lower floor building units are column omitted building units 20 and 20, as shown in FIG. 17.
[0069]
As shown in FIG. 18, the joint between the floor beams 12 and 12 that are arranged to face each other between the two standard building units 10 and 10 that are adjacent to each other is rigidly joined. This standard building unit 10 has a box-shaped frame structure in which a floor beam 12 made of lip-shaped channel steel and a column 11 made of a square steel pipe are joined by welding via a joined body 111 made of a steel ingot. . The floor beams 12, 12 arranged to face each other are joined rigidly by high-strength bolts 33 such as Torcia bolts through a joint piece 30 made of an I-shaped steel ingot.
[0070]
In this way, after rigidly joining the floor beams 12 and 12 arranged in abutment with the standard building units 10 and 10 on the upper floor, as shown in FIG. 17, the temporary columns of the column omitting building units 20 and 20 on the lower floor Is removed, and a large and continuous living room space and a large opening 24 are provided over the both-pillar omitted building units 20 and 20.
[0071]
  thisReference Example 6Also in the aboveReference example1 toReference Example 5 andImplementationofForm1Has the same effect as.
[0072]
  (ActualOutofForm2(Fig. 19)
  Between floor beams 12A and 12A made of I-shaped steel, as shown in FIG. 19, a joint piece 30 made of upper and lower attachment plates 31 and 31 is provided so as to enclose the upper and lower sides of floor beams 12A and 12A. By fastening with the high-strength bolt 33, rigid joining by friction joining is achieved. The accessory plate 31 is formed in a U-shaped cross-section in which flanges 311 and 311 are provided on both ends of the web 312, and the width between the inner surfaces of the facing flanges 311 and 311 is slightly larger than the outer width of the floor beam 12 </ b> A. Has been made. The section modulus and the secondary moment of the joint piece 30 are larger than the section modulus and the secondary moment of the floor beam 12A, and the flange 311 of the upper and lower attachment plates 31 is a butt portion between the floor beams 12A. It has an equivalent cross section that can withstand the shearing force applied to it, so that the necessary bonding strength can be sufficiently exhibited. Moreover, the linearity of the floor beams 12A and 12A arranged to face each other can be corrected by the attachment plate 31 having a U-shaped cross section.
[0073]
  As described above, the present inventionReference Examples 1-6 andEmbodiment1, 2The detailed configuration of the present invention is shown in the drawings.Reference Examples 1-6 andEmbodiment1, 2The present invention is not limited to this, and any design change or the like within a range not departing from the gist of the present invention is included in the present invention. For example, you may rigidly join the floor beams arranged by abutting two building units adjacent to each other on the first floor. If it does so, the frame structure as a unit building will become still stronger.
[0074]
【The invention's effect】
As described above, according to the present invention, in a unit building, when it is possible to form a wide and continuous opening or a living room space that is not blocked by a pillar, the configuration and construction can be simplified and the cost can be reduced. Moreover, it is possible to take a room with a high ceiling and a large opening with a height. Therefore, the freedom degree of the internal plan of a unit building improves, and also it becomes possible to change the internal plan of a living room according to the life cycle of a resident.
[Brief description of the drawings]
FIG. 1 of the present inventionReference example 1(A) is a perspective view which shows an installation state, (B) is a perspective view which shows a floor beam joining state, (C) is a perspective view which shows a large opening part formation state.
[Figure 2]Reference example 1The construction state of this unit building is shown, (A) is a top view which shows an installation state, (B) is a top view which shows a floor-beam joining state.
[Fig. 3]Reference example 1The floor beam joining structure of (A) is shown, (A) is a perspective view, (B) is a top view.
[Fig. 4]Reference example 1It is a perspective view which shows this joint piece.
[Figure 5]Reference example 2It is a top view which shows a unit building.
[Fig. 6]Reference example 3It is a top view which shows a unit building.
[Fig. 7]Reference example 4It is a top view which shows a unit building.
[Fig. 8]Reference Example 5(A) is a perspective view which shows an installation state, (B) is a perspective view which shows a large opening part formation state.
FIG. 9 is a perspective view showing an example of a building unit used in the present invention, where (A) is a standard building unit and (B) is a pillar omitted building unit.
FIG. 10Embodiment 1Building unit used forExampleFIG.
FIG. 11Embodiment 1Pillar-free building unit used forExampleFIG.
12 is a plan view (A) and a side view (B) of a column omitted corner portion of the column omitted building unit of FIG. 11. FIG.
FIG. 13Embodiment 1It is a perspective view which shows the example of the joint piece used for.
FIG. 14Embodiment 1It is a perspective view which shows the floor beam joining structure of this.
FIG. 15Embodiment 1FIG. 2A is a cross-sectional view, FIG. 3B is a plan view, and FIG. 3C is a side view.
FIG. 16Embodiment 1It is sectional drawing which shows the joining state of the foundation and floor beam.
FIG. 17Reference Example 6It is a perspective view which shows the unit building of and shows the floor-beam joining state.
FIG. 18Reference Example 6It is a side view which shows the floor beam joining state of.
FIG. 19Embodiment 2It is a side view which shows the floor beam joining state of.
[Explanation of symbols]
1A-1E unit building
11 pillars
12 Floor beams
10 Standard building unit
20, 20A-20F Pillar omitted building unit
21, 21A, 21B Column omitted corner
22, 22A-22D Column Omission Joint
23 temporary pillar
24 large openings
25 Large living room space
30 joint pieces
31 Outer plate (plate)
311 Flange
312 web
33 High strength bolt
50 basics

Claims (7)

A unit building with box-shaped building units installed vertically and horizontally, with columns and floor beams as frame components and without ceiling beams as frame components. the floor beams each other are arranged rigidly joined, Ri Na omitted pillars below the rigid connections to the floor beam,
Each of the adjacent building units is at least one column-omitted building unit, and each column-omitted corner portion is arranged to face each other at the column-omitted joint portion. It is made by rigidly joining the floor beams that are arranged to face each other.
The floor beams of the adjacent building units are rigidly joined to each other through a joint piece,
The joint piece is composed of a pair of attachment plates formed in a U-shaped cross section with flanges provided at both ends of the web, and the width between the inner surfaces of the facing flanges is substantially the same as the outer width of the floor beam. A unit building , wherein the joint piece is fastened with a high-strength bolt so as to enclose each of the floor beams from above and below . The other floor beams, which are arranged to face each other at the column-omitted joints of the adjacent building units and are rigidly joined to each other, are substantially perpendicular to the floor beams, and the floor beams are connected to each other via a lower gusset plate. 2. The unit building according to claim 1, wherein the unit building is fastened with a high-strength bolt so as to enclose each of the floor beams from above and below . The pair of joint pieces are provided by being fastened with high-strength bolts via an inner attachment plate so as to enclose each of the floor beams from above and below . Unit building. Unit building according to any one of claims 1 to 3, characterized in that is provided with a temporary column detachably to the column omission corner of the building unit. The pillar omitted junction of the phase Tonariru building units, unit building according to any one of claims 1 to 4, characterized in that is provided with openings over the building unit to which they phase Tonariru. The pillar omitted junction of the phase Tonariru building units, unit building according to any one of claims 1 to 5, characterized in that to form a column without space continuous with their phase Tonariru building unit . It is the construction method of the unit building of any one of Claims 1-6 , Comprising: As a building unit from which a pillar is abbreviate | omitted, what makes a temporary pillar detachable in a pillar abbreviation corner part, butts and arranges Temporary pillars are provided until the floor beams to be rigidly joined, and the floor beams to be butt- joined are rigidly joined by fastening the pair of joint pieces with high-strength bolts. A method for constructing a unit building, wherein a temporary column is removed after completion of rigid joining between floor beams.

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