JP2012017598A - Connection structure of building unit and construction method of connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction structure of a building unit and a construction method of the construction structure, in which finishing work for making bolts 61 and nuts 80 for connecting building units 10 invisible can be omitted without the risk of strength deterioration of column materials 20.SOLUTION: A bolt 61 is put through each of washer through holes 21b, 22b, 23b, and 24b cross-sectionally formed in respective diaphragms 21, 22, 23, and 24, and washers 71, and 72 mounted on the bolt 61 are fastened to an upper diaphragm 23 of a column material 20 of a first floor building unit 10 and a lower diaphragm 21 of a column material 20 of a second floor building unit 10, respectively, with nuts 80 to connect the column material 20 of the second floor building unit 10 and the column material 20 of the second floor building unit 10 together. The bolts 61, the nuts 80, the washers 71, and 72 and the like are hidden inside the column materials and not exposed to the external appearance of the building units 10. Therefore, finishing work for making the bolts 61 and the like invisible after the connection work can be eliminated.

Description

  The present invention relates to a connecting structure for connecting up and down building units constituting a unit type building suitable for an apartment house, a hotel, an office building, and the like, and a construction method of the connecting structure.

  As a form of a connecting structure of building units, Japanese Patent Application Laid-Open No. 2005-98078 discloses a column member having a hollow structure, a lower beam member connecting between lower end portions of adjacent column members, and an upper end portion of adjacent column members. There is disclosed a connecting structure of building units in which building units having the same structure are stacked on top of a building unit that is constructed of a frame with upper beam members that connect each other and connected with bolts.

  In this building unit connection structure, a column material is used in which a lower diaphragm and an upper diaphragm are fixed to a lower end portion and an upper end portion, respectively. The lower diaphragm and the upper diaphragm are fixed so as to cross the column material. The area of each diaphragm is larger than the cross-sectional area of the column material, and a flange surface is formed around each of the lower end portion and the upper end portion of the column material by the diaphragm. Bolt through holes are formed on the flange surface.

  The building unit on the lower floor and the building unit on the upper floor are inserted into the bolt through hole of the upper diaphragm of the pillar material of the lower floor building unit and the bolt through hole of the lower diaphragm of the pillar material of the upper floor building unit, The upper diaphragm and the lower diaphragm are tightened and connected with nuts.

  Moreover, in the connection structure of the building unit currently disclosed by Unexamined-Japanese-Patent No. 2005-336984, a bolt through-hole is provided in the column material cross section of the lower diaphragm fixed to the lower end part of the column material as a column material which comprises a building unit. The column material which formed and formed the bolt through-hole in the column material cross section of the upper diaphragm fixed to the upper end part of the column material is used.

  In this connection structure, the upper diaphragm of the column material of the building unit on the lower floor and the lower diaphragm of the building unit on the upper floor are inserted into bolt through holes arranged inside the column material and tightened.

  In this connection structure, work openings for inserting bolts, nuts, wrenches and the like into the column members are formed on the side surfaces of the lower and upper end portions of the column members.

JP 2005-98078 A JP 2005-336984 A

  Usually, a building unit of a unit type building is assembled at a factory in advance and finished with interior and exterior finishes, and then brought into a construction site and connected. In the connection structure in which the building unit is connected by attaching bolts to the bolt through holes on the flange surface formed on the outer periphery of the lower end of the pillar and the flange surface formed on the outer periphery of the upper end, the exterior of the building unit is Finishing work that hides the exposed bolts and nuts is necessary at the construction site, which takes time and cost.

  On the other hand, in a building unit connection structure that uses a pillar material with bolt through holes formed in the cross section of the pillar material of the lower diaphragm and the upper diaphragm, the bolts and nuts are hidden inside the pillar material and are not exposed to the exterior of the building unit . However, since the work opening is exposed to the exterior of the building unit, a finishing operation is required to make the work opening invisible at the construction site. Moreover, since the working opening is formed on the side surface of the column material, the strength of the column material is inevitably lowered.

  In view of the problems in the conventional structure of connecting building units described above, the present invention can omit the finishing work to make the bolts and nuts connecting the building units invisible at the construction site and reduce the strength of the column material. It aims at providing the construction method of the connection structure of a building unit which does not exist, and a connection structure.

In order to achieve the above object, the present invention according to claim 1 includes a plurality of pillar members having a hollow structure,
A lower diaphragm fixed to the lower end of the pillar material so as to cross the pillar material;
An upper diaphragm fixed to the upper end of the pillar material so as to cross the pillar material;
A building unit having the same structure is stacked on a building unit that forms a frame with a lower beam member that connects between the lower ends of adjacent column members and an upper beam member that connects between the upper ends of adjacent column members,
It is a connecting structure of the building unit that connects the lower floor building unit and the upper floor building unit by bolting the upper diaphragm of the lower floor building unit column and the lower diaphragm of the upper floor building unit with a bolt. ,
A washer with a bolt through hole in the center,
A through-hole for a washer of the lower diaphragm having a required shape that is formed in a cross section of the column member of the lower diaphragm, and the washer can be inserted when the washer is aligned, and the washer cannot be inserted when the washer is not aligned.
A through hole for the washer of the lower diaphragm, which is formed in the cross section of the column member of the upper diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. And a through hole for a washer of the upper diaphragm arranged in alignment along the longitudinal direction of the column member,
There is a convex part that fits into each through hole for washer on both the upper and lower sides, and the central part of the washer that is not aligned is fitted in the central part of the convex part with the convex part fitted in the fitting hole for washer A bracket having a possible through hole and a bolt through hole penetrating through the central part of both recesses,
The bracket is interposed between the upper diaphragm of the lower floor building unit and the lower diaphragm of the upper floor building unit,
The lower convex part of the bracket is fitted into the through hole for washer of the upper diaphragm of the lower floor building unit, the upper convex part of the bracket is fitted to the through hole for washer of the lower diaphragm of the upper floor building unit,
Fitting the central part of the first washer into the concave part of the lower convex part of the bracket, fitting the central part of the second washer into the concave part of the upper convex part of the bracket;
Insert the bolts into the bolt through holes of both washers and the bolt through holes of the upper and lower recesses of the bracket,
The first washer is fastened to the upper diaphragm with a nut screwed to the bolt, and the second washer is fastened to the lower diaphragm.

The present invention according to claim 2 includes a plurality of pillar members having a hollow structure,
A first lower diaphragm fixed to the lower end portion of the column material so as to cross the column material and a second lower diaphragm fixed to cross the column material above the first lower diaphragm;
A first upper diaphragm fixed to the upper end of the column material so as to cross the column material, and a second upper diaphragm fixed to cross the column material below the first upper diaphragm;
A building unit having the same structure is stacked on a building unit that forms a frame with a lower beam member that connects between the lower ends of adjacent column members and an upper beam member that connects between the upper ends of adjacent column members,
Connecting the building unit that connects the lower floor building unit to the upper floor building unit by tightening the first upper diaphragm of the lower floor building unit column with the first lower diaphragm of the upper floor building unit bolt with a bolt A construction method of the structure,
A washer with a bolt through hole in the center,
The first lower diaphragm has a required shape that is formed in the cross section of the column of the first lower diaphragm and has a required shape that allows the washer to be inserted when the washer is aligned and cannot be inserted when the washer is not aligned. With holes,
It is formed in the cross section of the column member of the second lower diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. A through hole for the washer of the second lower diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
The first upper diaphragm is formed in the cross section of the column member, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. A through hole for the washer of the first upper diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
It is formed in the cross section of the column material of the second upper diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned, and the first lower diaphragm has A through hole for the washer of the second upper diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
There are convex parts that fit into the through holes for each washer on both the upper and lower sides, and the central part of the washer that is not aligned is fitted in the central part of each convex part with the convex part fitted into the fitting hole for the washer. It is provided with a bracket that forms a concave part that can be combined, and a bolt through hole that penetrates the central part of both concave parts,
In the first step, the first nut is screwed into a predetermined position of the bolt with the stopper plate having the same outer dimensions as the washer fixed to the lower end of the bolt, and the first washer is attached to the bolt with the first nut. By retaining the stopper plate, the stopper plate and the first washer are aligned, and the distance between the stopper plate and the first washer is approximately equal to or slightly shorter than the distance between the first upper diaphragm and the second upper diaphragm. Attached to the bolt,
In the second step, the stopper plate and the first washer are inserted together with the bolt into the through hole for the washer of the first upper diaphragm of the column member of the building unit on the lower floor,
In the third step, the bolt is turned to dispose the stopper plate in a non-aligned position with respect to the through hole for the washer of the second upper diaphragm of the column member of the lower floor building unit, and the first upper portion of the column member of the lower floor The stopper plate is placed on the upper surface of the second upper diaphragm so that the bolt is erected on the second upper diaphragm, and the upper end of the bolt is the first end of the bolt. Projecting from the through hole for the washer of the upper diaphragm, and arranging the first washer close to the lower surface of the first upper diaphragm,
In the fourth step, the bracket is placed on the first upper diaphragm of the pillar of the building unit on the lower floor, and the lower convex portion of the bracket is fitted into the through hole for the washer of the first upper diaphragm, and the upper end of the bolt A recess is formed by inserting and projecting a central portion of the first washer in the lower convex portion through the bolt through hole in the concave portion formed in the lower convex portion and the bolt through hole in the concave portion in the upper convex portion. Mated with
In the fifth step, the pillar material of the upper floor building unit is placed on the bracket placed on the first upper diaphragm of the pillar material of the lower floor building unit, and the pillar material of the upper floor building unit is The upper convex portion of the bracket is fitted into the washer through hole of the first lower diaphragm, and the upper end portion of the bolt is projected from the washer through hole of the first lower diaphragm,
In the sixth step, the second washer is passed through the washer through hole of the first and second upper diaphragms of the column member of the upper floor building unit and the washer through hole of the second lower diaphragm of the column member. And the center part of the second washer is fitted into the concave part of the upper convex part of the bracket,
In the seventh step, the second nut is passed through the washer through hole of the first and second upper diaphragms of the column material of the upper floor building unit and the washer through hole of the second lower diaphragm of the same column material, and the upper end of the bolt The second washer is fastened to the first lower diaphragm of the column member of the upper floor building unit by the second nut, and the first washer is tightened to the first upper diaphragm of the column member of the lower floor building unit. It is characterized by that.

  Preferably, the two projections are provided in parallel on the bracket at a predetermined interval, and one projection is fitted into a through hole for a washer formed in a diaphragm of a pillar of one building unit. The other convex portion is configured to be fitted into a through hole for washer formed in the diaphragm of the pillar material of the building unit adjacent to the one building unit.

  Preferably, a long wrench having a magnet at the tip is used, and the washer or nut is adsorbed by the magnet at the tip of the wrench to penetrate the washer of the first and second upper diaphragms of the column material of the upper floor building unit. The hole and the through hole for washer of the second lower diaphragm of the same pillar material are inserted.

  According to the present invention, a bolt is passed through a washer through-hole formed in the cross section of each diaphragm, and the washer mounted on this bolt is connected to the lower floor building unit, the upper diaphragm of the column material, and the column material of the upper floor building unit. The lower floor building unit is tightened with a nut to connect the pillar material of the lower-floor building unit to the pillar material of the upper-floor building unit, so bolts, nut washers, etc. are hidden inside the pillar material and are not exposed to the exterior of the building unit . Therefore, the finishing work of making the bolts or the like invisible after the building unit connection work can be omitted.

  In addition, bolts, washers, nuts, wrenches, etc. can be inserted along the vertical direction of the column material through the through holes for the washer formed in the diaphragm fixed to the upper and lower ends of the column material. It is not necessary to form an opening for performing the connecting operation on the side surface of the column member. Therefore, it can prevent that the intensity | strength of a pillar material falls by the opening formed in the side surface of a pillar material.

  In addition, two convex portions are provided in parallel at a predetermined interval on the bracket, and one convex portion is fitted into a through hole for a washer formed in a diaphragm of a pillar material of one building unit, and the other convex portion Is fitted into a through hole for a washer formed in the diaphragm of the column material of the building unit adjacent to the one building unit, so that the column materials of the building unit adjacent in the horizontal direction can be connected by a bracket, The connection strength can be increased.

  Furthermore, a long wrench having a magnet at the tip is used, and a washer or nut is adsorbed by the magnet at the tip of the wrench to provide a through hole for the washer of the first and second upper diaphragms of the column member of the upper floor building unit. By inserting through the through hole for the washer of the second lower diaphragm of the column material, the work of attaching the washer and the nut to the bolt can be performed quickly and reliably, and the construction efficiency is improved.

It is a perspective view which shows the unit type building provided with the connection structure of the building unit which concerns on one Example of this invention. It is sectional drawing which shows the connection structure of the pillar material, foundation concrete, the pillar material of a 1st-floor building unit, and the pillar material of a 2nd-floor building unit. It is sectional drawing cut | disconnected from the 3-3 line of FIG. It is a top view which shows the 1st lower diaphragm of a pillar material. It is a perspective view which shows a stopper plate. It is a perspective view which shows the bracket for foundations. It is a perspective view which shows the bracket for pillars. It is a front view which shows a long wrench. It is a bottom view which shows the cylinder part of a long wrench. It is sectional drawing which shows the cylinder part of a long wrench. It is explanatory drawing of the operation | work which fixes the pillar material of a 1st-floor building unit to a concrete base. It is explanatory drawing of the operation | work which fixes the pillar material of a 1st-floor building unit to a concrete base. It is explanatory drawing of the operation | work which fixes the pillar material of a 1st-floor building unit to a concrete base. It is a perspective view which shows the volt | bolt which connects the pillar material of a 1st floor building unit, and the pillar material of a 2nd floor building unit, a stopper plate, and a washer. It is explanatory drawing of the operation | work which connects the pillar material of a 1st floor building unit, and the pillar material of a 2nd floor building unit. It is explanatory drawing of the operation | work which connects the pillar material of a 1st floor building unit, and the pillar material of a 2nd floor building unit. It is explanatory drawing of the operation | work which connects the pillar material of a 1st floor building unit, and the pillar material of a 2nd floor building unit. It is a top view which shows the 1st upper diaphragm of the pillar material of a 1st floor building unit. It is explanatory drawing of the operation | work which connects the pillar material of a 1st floor building unit, and the pillar material of a 2nd floor building unit. It is a top view which shows the 1st upper diaphragm of the pillar material of a 2nd floor building unit.

  Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 shows an example of a unit building 100 having a connecting structure of building units 10 according to an embodiment of the present invention. The unit-type building 100 has five floors, and each floor is composed of a total of ten building units 10 including five horizontal buildings and two rear buildings.

  Each building unit 10 includes four steel pipe column members 20, a shaped steel upper beam member 30 that connects the upper ends of the adjacent column members 20, and a lower section made of a shaped steel member that connects the lower ends of the adjacent column members 20. A frame composed of beam members 40 is provided. The building unit 10 is assembled at a factory in advance, and after finishing the interior and exterior, it is carried into the construction site. Then, the building units 10 adjacent in the horizontal and vertical directions are connected to each other and assembled into the unit building 100. In FIG. 1, only the framework of the building unit 10 is shown, and the interior and exterior are omitted.

  2 and 3 show the detailed structure of the base portion of the first-floor building unit 10 shown by area A in FIG. 1, and the details of the first-floor building unit and second-floor building unit shown by area B in FIG. A simple connection structure is illustrated. As shown in FIG. 4, the steel pipe column member 20 has a hollow structure with a square cross section, and is welded so that a square first lower diaphragm 21 crosses the column member 20 at the lower end opening of the column member. Has been. The first lower diaphragm 21 has a cross-sectional area wider than the cross-sectional area of the column member 20, and forms a flange surface 21 a on the outer peripheral portion of the lower end surface of the column member 20. In addition, a substantially rectangular washer through hole 21 b is formed at the center of the cross section of the columnar material of the first lower diaphragm 21. Furthermore, a second lower diaphragm 22 is welded to a position above the first lower diaphragm 21 at the lower end of the column member 20 so as to cross the column member 20. Although the second lower diaphragm 22 is slightly thinner than the first lower diaphragm 21, it has the same outer dimensions as the first lower diaphragm 21, forms a flange surface 22 a at the lower end portion of the column member 20, and has a column cross section. A washer through hole 22b having the same outer dimensions as the washer through hole 21b of the first lower diaphragm 21 is formed at the center. The washer through hole 22 b of the second lower diaphragm 22 is arranged to align with the washer through hole 21 b of the first lower diaphragm 21 along the vertical direction of the column 20.

  A first upper diaphragm 23 is welded to the upper end surface opening of the column member 20 so as to cross the column member 20, and a second upper diaphragm 24 is welded so as to cross the column member below the first upper diaphragm 23. Yes. The first upper diaphragm 23 has the same outer dimensions as the first lower diaphragm 21, and the second upper diaphragm 24 has the same outer dimensions as the second lower diaphragm 22. The first upper diaphragm 23 and the second upper diaphragm 24 also form flange surfaces 23 a and 24 a on the outer peripheral portion of the column member 20, respectively. Furthermore, the first upper diaphragm 23 and the second upper diaphragm 24 are formed with washer through holes 23b and 24b (see FIG. 11) having the same shape and dimensions as the washer through hole 21b of the first lower diaphragm 21, respectively. The washer through hole 23b of the first upper diaphragm 23 and the washer through hole 24b of the second upper diaphragm 24 are aligned with the washer through hole 21b of the first lower diaphragm 21 along the vertical direction of the column 20. Yes.

  The column member 20 of the building unit 10 constituting the first floor of the unit-type building 100 is fixed at a lower end thereof standing on a concrete base 90 with a base bracket 50, an anchor bolt 60, a washer 70 and a nut 80. Yes. The anchor bolt 60 is embedded in the concrete base 90, and its upper end protrudes from the base surface.

  As shown in FIG. 5, the washer 70 has a rectangular shape, and a bolt through hole 70a is formed at the center. This washer 70 can be inserted through the washer through holes 21b, 22b, 23b, 24b when aligned with the washer through holes 21b, 22b, 23b, 24b formed in the respective diaphragms 21, 22, 23, 24. The required outer dimensions are set so that they cannot be inserted in the non-aligned arrangement.

  As shown in FIG. 6, the base bracket 50 includes a rectangular base plate 51 and two convex portions 52 arranged in parallel on the upper surface of the base plate 51 at a predetermined interval. A groove-like recess 52a is formed at the center of 52, and a bolt through hole 52b is formed at the center of each groove-like recess 52a. The protrusions 52 are aligned with the washer through holes 21b, 22b, 23b, and 24b of the diaphragms 21, 22, 23, and 24, thereby being fitted into the washer through holes 21b, 22b, 23b, and 24b. It is set to the required external dimensions. Further, the groove-shaped recess 52a is arranged in an aligned manner so that the central portion of the washer 70 is fitted and the convex portion 52 is fitted to the through-holes 21b, 22b, 23b, 24b for the washers. When the central portion is fitted, the washer 70 is set so as to be non-aligned with respect to the washer through holes 21b, 22b, 23b, and 24b.

  The base bracket 50 is placed on the surface of the concrete base 90 so that the upper end portion of the anchor bolt 60 is inserted through the bolt through hole 52b. The column material 20 of the two first-floor building units 10 adjacent to each other includes the base bracket 50 so that the convex portions 52 of the base bracket 50 fit into the washer through holes 21b of the first lower diaphragm 21. Is placed. The upper end portion of the anchor bolt 60 passes through the bolt through hole 70a of the washer 70, and the central portion of the washer 70 is fitted in the groove-shaped recess 52a. The washer 70 is fastened to the first lower diaphragm 21 with a nut 80 screwed to the upper end portion of the anchor bolt 60, whereby the column member 20 is fixed to the concrete base 90.

  The lower end portion of the column material 20 of the second floor building unit 10 is connected to the upper end portion of the column material 20 of the first floor building unit 10 using the column bracket 55, bolt 61, washer 71, 72, and nut 80. . As shown in FIG. 7, the column bracket 55 includes a base plate 56 having the same outer dimensions as the base plate of the base bracket 50, and convex portions 57 are integrally provided on both upper and lower surfaces of the base plate 56. Each convex portion 57 is formed with a groove-shaped concave portion 57a and a bolt through hole 57b having the same structure as the convex portion 52 of the base bracket 50. The washers 71 and 72 have the same shape and structure as the washer 70, and are formed with bolt through holes 71a and 72a (see FIG. 14) in the center.

  The column bracket 55 is inserted between the first upper diaphragm 23 of the column member 20 of the building unit 10 on the first floor and the first lower diaphragm 21 of the column member 20 of the building unit 10 on the second floor. The lower convex portion 57 is fitted in the washer through hole 23 b of the first upper diaphragm 23, and the upper convex portion 57 is fitted in the washer through hole 21 b of the first lower diaphragm 21.

  Further, the central portion of the first washer 71 is fitted into the groove-like recess 57a of the lower convex portion 57 of the column bracket 55, and the central portion of the second washer 72 is fitted to the groove-like concave portion 57a of the upper convex portion 57. It is mated. The upper and lower washers 71, 72 fitted in the groove-like recess 57 a are arranged in a non-aligned position with respect to the washer through hole 23 b of the first upper diaphragm 23 and the washer through hole 21 b of the first lower diaphragm 21, respectively. .

The bolt 61 passes through the bolt through holes 71a, 72a of the upper and lower washers 71, 72 and the bolt through hole 57a of the column bracket 55, and the first washer 71 is attached to the first upper diaphragm 23 by a nut 80 screwed into the bolt 61. While tightening, the 2nd washer 72 is fastened to the 1st lower diaphragm 21, and the pillar material 20 of the building unit 10 of the 1st floor and the pillar material 20 of the building unit 10 of the 2nd floor are connected.
As will be described in detail later, a stopper plate 73 is attached to the lower end portion of the bolt 61 with a nut 80. The end of the lower beam member 40 is welded to the flange surfaces 21 a and 22 a of the first lower diaphragm 21 and the second lower diaphragm 22. Similarly, the end portion of the upper beam member 40 is welded to the flange surfaces 23 a and 24 a of the first upper diaphragm 23 and the second upper diaphragm 24.

  Next, an operation process for fixing the pillar material 20 to the base 90 and an operation process for connecting the pillar material 20 on the first floor and the pillar material 20 on the second floor will be described. A long wrench used in these work steps is shown in FIGS. The long wrench 63 is integrally provided with a handle 63b at the upper end of the long rod 63a and a cylinder 63c at the lower end. The cylinder part 63c has a nut hole 63d having a regular hexagonal cross section in which the nut 80 is fitted. A pair of magnets 63e are fixed to the outer peripheral portion of the lower end surface of the cylindrical portion 63c at symmetrical positions. By using this long wrench 63, not only can the nut 80 be fitted into the nut hole 63d to hold the nut 80, but also the washers 70, 71, 72 can be attracted and held on the open end face of the nut hole 63d by the magnet 63e. Further, since the long rod 63a has a required length, the cylindrical portion 63c is inserted from the washer through hole 23b of the first upper diaphragm 23 of the column member 20, and the washer of the first lower diaphragm 21 of the column member 20 is inserted. The cylindrical portion 63c can reach the through hole 31b.

  In order to fix the pillar 20 of the building unit 10 on the first floor to the concrete base 90, a base bracket 50 is placed on the surface of the concrete base 90 as shown in FIG. The upper end portion of one anchor bolt 60 is projected through the hole 52b, and the upper end portion of the other anchor bolt 60 is projected through the other through hole 52b. Then, the pillar material 20 of one first-floor building unit and the pillar material 20 of the first-floor building unit 10 that is adjacent to the first-floor building unit 10 in the horizontal direction are placed on the base bracket 50, and the pillar material 20. The convex portion 52 of the base bracket 50 is fitted into the washer through hole 21 b of the first lower diaphragm 21.

  Next, the washer 70 is sucked and held by the magnet 63e on the tip surface of the cylindrical portion 63c of the long wrench 63, and the sucked and held washer 70 is moved to the first upper diaphragm 23, the second upper diaphragm 24, and the second lower portion of the column member 20. The upper end portion of the anchor bolt 60 is inserted into the bolt through hole 70a of the washer 70 as shown in FIG. 12 while passing through the washer through holes 23b, 24b, and 22b of the diaphragm 22 in alignment.

  Subsequently, the long wrench 63 is turned so that the washer 70 is disposed at the non-aligned position as shown in FIG. 13 and the central portion thereof is fitted into the groove-shaped recess 52 a of the base bracket 50. Next, a nut 80 is fitted into the nut hole 63d of the cylindrical portion 63c of the long wrench 63, and the washer through-hole 23b of the first upper diaphragm 23, the second upper diaphragm 24, and the second lower diaphragm 22 of the column member 20. , 24b, 22b are passed through and screwed to the upper end of the anchor bolt 60, and the washer 70 is fastened to the first lower diaphragm 21, thereby fixing the column member 20 to the concrete base 90.

  Next, the operation | work which connects the pillar material 20 of the 2nd-floor building unit 10 to the pillar material 20 of the 1st-floor building unit 10 is demonstrated. As shown in FIG. 14, a bolt head 61 a and a nut are the same as the washer 70 as a stopper plate 73 at the lower end of the bolt 61 that connects the column member 20 of the first floor building unit and the column member 20 of the second floor building unit. It is fixed at 80. Further, the first washer 71 is inserted into the bolt 61 and is prevented from being detached by a nut 80 at a predetermined position. The stopper plate 73 and the first washer 71 are arranged at an alignment position, and the distance between the stopper plate 73 and the first washer 71 is set substantially equal to or slightly shorter than the distance between the first lower diaphragm 21 and the second lower diaphragm 22.

  As shown in FIG. 15, the stopper plate 73 and the first washer 71 attached to the bolt 61 are aligned with the washer through hole 23 b of the first upper diaphragm 23 of the column member 20 of the first floor building unit 10. To insert. In this case, the operator can work with the bolt 61 by hand without necessarily using the long wrench 63.

  Subsequently, as shown in FIG. 16, the bolt 61 is turned to dispose the stopper plate 73 in a non-aligned position with respect to the washer through hole 24 b of the second upper diaphragm 24 of the column member 20 of the first floor building unit 10. At the same time, the first floor diaphragm 23 of the first floor building unit 10 is arranged in a non-aligned position with respect to the through hole 23b for the washer. Accordingly, the stopper plate 73 is placed on the upper surface of the second upper diaphragm 24, the bolt 61 is erected on the second upper diaphragm 24, and the upper end portion of the bolt 61 projects from the washer through hole 23b of the first upper diaphragm 23. In addition, the first washer 71 is disposed close to the lower surface of the first upper diaphragm 23.

  Next, as shown in FIG. 17, the column bracket 55 is placed on the first upper diaphragm 23 of the column member 20 of the first floor building unit 10, and the lower convex portion 57 of the bracket 55 is moved to the first upper diaphragm 23. It fits into the washer through hole 23b. Further, the upper end portion of the bolt 61 is inserted into and protruded from the bolt through hole 57b of the concave portion 57a formed in the lower convex portion 57 and the bolt through hole 57b of the concave portion 57a of the upper convex portion 57. Then, as shown in FIG. 18, the central portion of the first washer 71 is fitted into the concave portion 57 a of the lower convex portion 57. The distance between the stopper plate 73 attached to the bolt 61 and the first washer 71 is set to be approximately equal to or slightly shorter than the distance between the first upper diaphragm 23 and the second upper diaphragm 24. One washer 71 is engaged with the concave portion 57 a of the lower convex portion 57.

  Subsequently, as shown in FIG. 19, the pillar material 20 of the second floor building unit 10 is placed on the pillar bracket 55 placed on the first upper diaphragm 23 of the pillar material 20 of the first floor building unit 10. Then, the upper convex portion 57 of the column bracket 55 is fitted into the washer through hole 21b of the first lower diaphragm 21 of the column member 20 of the first floor building unit 10, and the upper end portion of the bolt 61 is connected to the first lower diaphragm 21. It protrudes from the through hole 21b for the washer.

  Next, using the long wrench 63, as shown in FIG. 2, the first upper diaphragm 23 of the pillar material 20 of the first floor building unit 10 and the through holes 23b, 24b for the washer of the second upper diaphragm 24 are the same. The second washer 72 is inserted into the upper end of the bolt 61 through the washer through hole 22b of the second lower diaphragm 22 of the column member 20, and the center of the second washer 72 is connected to the bracket 55 as shown in FIG. It fits into the concave portion 57 a of the upper convex portion 57. Subsequently, with the long wrench 63, the first upper diaphragm 24 of the pillar material 20 of the first-floor building unit 10 and the washer through holes 24b and 23b of the second upper diaphragm 23, and the second lower diaphragm 22 of the pillar material 20. The second nut 80 is screwed into the upper end portion of the bolt 61 through the through hole 22b for the washer, and the second washer 72 is fastened to the first lower diaphragm 21 of the column member 20 of the second floor building unit 10 by the second nut 80. At the same time, the first washer 71 is fastened to the first upper diaphragm 23 of the column member 20 of the building unit 10 on the first floor.

  According to the present embodiment, the bolt 61 is passed through the through holes 21b, 22b, 23b, 24b for the washer formed in the cross section of each diaphragm 21, 22, 23, 24, and the washer 71, 72 attached to the bolt 61 is passed through. The upper diaphragm 23 of the pillar material 20 of the building unit 10 on the first floor and the lower diaphragm 21 of the pillar material 20 of the building unit 10 on the second floor are fastened with nuts 80 to fix the pillar material 20 and the second floor building unit 10 of the first floor building unit 10. Therefore, the bolts 61, nuts 80, washers 71, 72, etc. are hidden inside the pillar member 20 and are not exposed to the exterior of the building unit 10. Therefore, the finishing work of making the bolts 61 and the like invisible after the building unit connection work can be omitted.

  In addition, bolts 61, washers 71, 72, nuts 80, wrenches 63, etc. are passed through through holes 21b, 22b, 23b, 24b for washers formed in the diaphragms 21, 22, 23, 24 fixed to the upper and lower ends of the column member 20. Can be inserted along the vertical direction of the column member 20 into the column member 20, so that it is not necessary to form an opening for connecting the column members 20 on the side surface of the column member 20. Therefore, it can prevent that the intensity | strength of a pillar material falls with the opening formed in the side surface of the pillar material 20. FIG.

  Further, two convex portions 57 are provided in parallel at a predetermined interval on the bracket 55, and a washer through hole 21 b formed in the diaphragm 21, 23 of the column member 20 of one building unit 10 on one convex portion 57. , 23b, and the other convex portion 57 is fitted into the through holes 21b, 23b for the washer formed in the diaphragms 21, 23 of the column member 20 of the building unit 10 adjacent to the one building unit 10, The column members 20 of the building units 10 adjacent in the horizontal direction can be connected to each other by the bracket 55, and the connection strength of the building units 10 can be increased.

  Furthermore, a long wrench 63 having a magnet 63c at the tip is used, and a washer 71, 72 or a nut 80 is attracted by the magnet 63c at the tip of the wrench 63, and the first upper portion of the column member 20 of the building unit 10 on the first floor. By inserting the through holes 23b and 24b for the washer of the diaphragm 23 and the second upper diaphragm 24 and the through hole 22b for the washer of the second lower diaphragm 22 of the column member 20, the washers 71 and 72 and the bolt 61 of the nut 80 are inserted. Installation work can be carried out quickly and reliably, improving the work efficiency.

DESCRIPTION OF SYMBOLS 10 ... Building unit 20 ... Column 21 ... 1st lower diaphragm 21b ... Through hole 22 for washer ... 2nd lower diaphragm 22b ... Through hole 23 for washer ... 1st upper diaphragm 23b ... Through hole 24 for washer ... 2nd upper diaphragm 24b ... Washer through hole 55 ... Bracket 57 ... Convex portion 57a ... Recess 57b ... Bolt through hole 61 ... Bolt 63 ... Long wrench 63e ... Magnet 70 ... Stopper plate 70a ... Bolt through holes 71, 72 ... Washers 71a, 72a ... Bolt through hole 80 ... Nut

Claims (4)

A plurality of pillars having a hollow structure;
A lower diaphragm fixed to the lower end of the pillar material so as to cross the pillar material;
An upper diaphragm fixed to the upper end of the pillar material so as to cross the pillar material;
A building unit having the same structure is stacked on a building unit that forms a frame with a lower beam member that connects between the lower ends of adjacent column members and an upper beam member that connects between the upper ends of adjacent column members,
It is a connecting structure of the building unit that connects the lower floor building unit and the upper floor building unit by bolting the upper diaphragm of the lower floor building unit column and the lower diaphragm of the upper floor building unit with a bolt. ,
A washer with a bolt through hole in the center,
A through-hole for a washer of the lower diaphragm having a required shape that is formed in a cross section of the column member of the lower diaphragm, and the washer can be inserted when the washer is aligned, and the washer cannot be inserted when the washer is not aligned.
A through hole for the washer of the lower diaphragm, which is formed in the cross section of the column member of the upper diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. And a through hole for a washer of the upper diaphragm arranged in alignment along the longitudinal direction of the column member,
There is a convex part that fits into each through hole for washer on both the upper and lower sides, and the central part of the washer that is not aligned is fitted in the central part of the convex part with the convex part fitted in the fitting hole for washer A bracket having a possible through hole and a bolt through hole penetrating through the central part of both recesses,
The bracket is interposed between the upper diaphragm of the lower floor building unit and the lower diaphragm of the upper floor building unit,
The lower convex part of the bracket is fitted into the through hole for washer of the upper diaphragm of the lower floor building unit, the upper convex part of the bracket is fitted to the through hole for washer of the lower diaphragm of the upper floor building unit,
Fitting the central part of the first washer into the concave part of the lower convex part of the bracket, fitting the central part of the second washer into the concave part of the upper convex part of the bracket;
Insert the bolts into the bolt through holes of both washers and the bolt through holes of the upper and lower recesses of the bracket,
A connecting structure for building units, wherein a first washer is fastened to an upper diaphragm with a nut screwed to a bolt, and a second washer is fastened to a lower diaphragm. A plurality of pillars having a hollow structure;
A first lower diaphragm fixed to the lower end portion of the column material so as to cross the column material and a second lower diaphragm fixed to cross the column material above the first lower diaphragm;
A first upper diaphragm fixed to the upper end of the column material so as to cross the column material, and a second upper diaphragm fixed to cross the column material below the first upper diaphragm;
A building unit having the same structure is stacked on a building unit that forms a frame with a lower beam member that connects between the lower ends of adjacent column members and an upper beam member that connects between the upper ends of adjacent column members,
Connecting the building unit that connects the lower floor building unit to the upper floor building unit by tightening the first upper diaphragm of the lower floor building unit column with the first lower diaphragm of the upper floor building unit bolt with a bolt A construction method of the structure,
A washer with a bolt through hole in the center,
The first lower diaphragm has a required shape that is formed in the cross section of the column of the first lower diaphragm and has a required shape that allows the washer to be inserted when the washer is aligned and cannot be inserted when the washer is not aligned. With holes,
It is formed in the cross section of the column member of the second lower diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. A through hole for the washer of the second lower diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
The first upper diaphragm is formed in the cross section of the column member, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned. A through hole for the washer of the first upper diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
It is formed in the cross section of the column material of the second upper diaphragm, has a required shape that allows the washer to be inserted when the washer is aligned, and cannot be inserted when the washer is not aligned, and the first lower diaphragm has A through hole for the washer of the second upper diaphragm arranged in alignment with the through hole for the washer and the longitudinal direction of the column member;
There are convex parts that fit into the through holes for each washer on both the upper and lower sides, and the central part of the washer that is not aligned is fitted in the central part of each convex part with the convex part fitted into the fitting hole for the washer. It is provided with a bracket that forms a concave part that can be combined, and a bolt through hole that penetrates the central part of both concave parts,
In the first step, the first nut is screwed into a predetermined position of the bolt with the stopper plate having the same outer dimensions as the washer fixed to the lower end of the bolt, and the first washer is attached to the bolt with the first nut. By retaining the stopper plate, the stopper plate and the first washer are aligned, and the distance between the stopper plate and the first washer is approximately equal to or slightly shorter than the distance between the first upper diaphragm and the second upper diaphragm. Attached to the bolt,
In the second step, the stopper plate and the first washer are inserted together with the bolt into the through hole for the washer of the first upper diaphragm of the column member of the building unit on the lower floor,
In the third step, the bolt is turned to dispose the stopper plate in a non-aligned position with respect to the through hole for the washer of the second upper diaphragm of the column member of the lower floor building unit, and the first upper portion of the column member of the lower floor The stopper plate is placed on the upper surface of the second upper diaphragm so that the bolt is erected on the second upper diaphragm, and the upper end of the bolt is the first end of the bolt. Projecting from the through hole for the washer of the upper diaphragm, and arranging the first washer close to the lower surface of the first upper diaphragm,
In the fourth step, the bracket is placed on the first upper diaphragm of the pillar of the building unit on the lower floor, and the lower convex portion of the bracket is fitted into the through hole for the washer of the first upper diaphragm, and the upper end of the bolt A recess is formed by inserting and projecting a central portion of the first washer in the lower convex portion through the bolt through hole in the concave portion formed in the lower convex portion and the bolt through hole in the concave portion in the upper convex portion. Mated with
In the fifth step, the pillar material of the upper floor building unit is placed on the bracket placed on the first upper diaphragm of the pillar material of the lower floor building unit, and the pillar material of the upper floor building unit is The upper convex portion of the bracket is fitted into the washer through hole of the first lower diaphragm, and the upper end portion of the bolt is projected from the washer through hole of the first lower diaphragm,
In the sixth step, the second washer is passed through the washer through hole of the first and second upper diaphragms of the column member of the upper floor building unit and the washer through hole of the second lower diaphragm of the column member. And the center part of the second washer is fitted into the concave part of the upper convex part of the bracket,
In the seventh step, the second nut is passed through the washer through hole of the first and second upper diaphragms of the column material of the upper floor building unit and the washer through hole of the second lower diaphragm of the same column material, and the upper end of the bolt The second washer is fastened to the first lower diaphragm of the column member of the upper floor building unit by the second nut, and the first washer is tightened to the first upper diaphragm of the column member of the lower floor building unit. The construction method of the connection structure of the building unit characterized by the above-mentioned.   Two projections are provided in parallel on the bracket at a predetermined interval, and one projection is fitted into a through hole for a washer formed in a diaphragm of a pillar of one building unit, and the other projection The connecting structure for building units according to claim 1, wherein the connecting structure is fitted in a through hole for a washer formed in a diaphragm of a pillar of a building unit adjacent to the one building unit.   Using a long wrench with a magnet at the tip, the washer or nut is adsorbed with the magnet at the tip of the wrench, and through holes for the washer of the first and second upper diaphragms of the column material of the upper floor building unit The construction method of the connecting structure of the building unit according to claim 2, wherein the through hole for the washer of the second lower diaphragm of the material is inserted.

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