JP5241137B2 - Reinforcement structure of building unit - Google Patents

Description

  The present invention relates to a reinforcing structure of a building unit that reinforces a first building unit when the intermediate part of the ceiling beam of the first building unit and the pillar of the second building unit are joined so as to face each other.

  Conventionally, the middle part of the ceiling beam of the first building unit that has a skeleton in which each of the four floor beams, ceiling beams, and columns is assembled in a box shape, and each of the four floor beams, ceiling beams, and columns is a box shape. There is known a reinforcing structure of a building unit that reinforces the first building unit when the first and second building units are joined so that the pillars of the second building unit having a skeleton assembled to each other face each other. (For example, refer to Patent Document 1).

  In the reinforcing structure of this building unit, an auxiliary beam extending along the orthogonal direction of the ceiling beam is provided on the ceiling beam of the first building unit to which the second building unit is joined from the position where the column of the second building unit faces. It was done.

Thereby, the horizontal load input from the second building unit to the first building unit is supported, and deformation of the ceiling beam is prevented.
Japanese Examined Patent Publication No. 7-81319

  By the way, in the above-mentioned building unit reinforcing structure, since the auxiliary beam extends in a direction orthogonal to the ceiling beam from the position where the pillar of the second building unit faces, There was a problem that the auxiliary beam was exposed. In addition, it is conceivable that the atrium space must be narrowed in order to hide this auxiliary beam, and there is a possibility that the design plan may be restricted when a new unit building is constructed.

  In addition, if the first building unit is pre-formed with a colonnade space, it cannot be joined so that the pillars of the second building unit face each other in the middle of the ceiling beam that surrounds the colonnade space. There was also a risk that the design plan when doing so would be restricted.

  Therefore, an object of the present invention is to provide a reinforcing structure for a building unit that can improve the degree of freedom of the design plan of the unit building.

In order to solve the above problems, the reinforcing structure of a building unit according to the present invention includes an intermediate portion of a ceiling beam of a first building unit having a skeleton in which each of four floor beams, ceiling beams, and columns is assembled in a box shape, and When the first and second building units are joined such that each of the four floor beams, ceiling beams, and columns of the second building unit having a skeleton in which the columns are assembled in a box shape, face each other. A reinforcing structure of a building unit that reinforces one building unit, wherein a reinforcing member is provided along the ceiling beam of the first building unit over and around the position facing the pillar of the second building unit, The ceiling beam of the first building unit and the reinforcing member are made of channel steel having a U-shaped cross section, and the upper flange of the ceiling beam of the first building unit and the upper flange of the reinforcing member are in contact with each other. Bottom flange of unit ceiling beam The lower flange of the reinforcing member is in contact, wherein the reinforcing member, the mounting member is provided for fixing to the ceiling beam of the second building unit with ceiling beams of the first building unit, ceiling beams of the first building unit An auxiliary reinforcing member extending in a direction orthogonal to the reinforcing member and connecting the ceiling beams facing each other of the first building unit is provided between one of the pillars located at both ends of the reinforcing member and the reinforcing member. It is provided .

  The reinforcing member may be provided so that the ceiling beam of the first building unit has a closed cross section.

  Further, the reinforcing member may be bolted to the ceiling beam of the first building unit.

  And between one of the pillars positioned at both ends of the ceiling beam of the first building unit and the reinforcing member, the reinforcing member extends in a direction orthogonal to the reinforcing member, and the first building unit faces each other. It is also possible to provide an auxiliary reinforcing member for connecting the ceiling beams.

  In the reinforcing structure of the building unit of the present invention configured as described above, the reinforcing member does not protrude to the inside of the ceiling beam of the first building unit, and a free-sized atrium space is formed in the first building unit. It becomes possible to do. It is also possible to join the pillars of the second building unit so as to face each other in the middle part of the ceiling beam surrounding the pre-formed atrium space. In this way, the degree of freedom in building design can be improved.

  In addition, since the ceiling beam has a closed cross section with the reinforcing member, the rigidity of the ceiling beam can be increased with a simple configuration, and the manufacturing cost can be suppressed.

  Furthermore, since the reinforcing member is bolted, the reinforcing member can be easily moved, and when the building is renovated, the reinforcing member can be moved to easily change to a new floor plan. Can do.

  Further, by providing an auxiliary reinforcing member that extends in a direction orthogonal to the reinforcing member and connects the ceiling beams, the horizontal load input from the second building unit can be supported also by the auxiliary reinforcing member. Even if the first and second building units are large, they can be reliably reinforced.

  Next, a reinforcing structure for a building unit according to the best mode for carrying out the present invention will be described with reference to the drawings.

  In FIG. 4, 10 is a unit building, 20 is a living room unit (first building unit) constituting the unit building 10, and 30 is an auxiliary room unit (second building unit) adjacent to the living room unit 20. .

  The living room unit 20 includes four pillars 21,... (Some not shown, the same applies hereinafter) and four ceiling beams 22, which connect the upper ends of the four pillars 21,. .. and a frame of a so-called box ramen structure in which four floor beams 23 connecting the lower ends of the four columns 21,... have.

  Similarly, the auxiliary chamber unit 30 has four pillars 31,... (Partially not shown, the same applies hereinafter) and four ceilings connecting the upper ends of the four pillars 31,. The beam 32,..., And the four floor beams 33,... (Which are not shown in the figure, the same applies hereinafter) connecting the lower ends of the four columns 31,. It has a frame of a box ramen structure.

  In addition, each pillar 21, ..., 31, ..., ceiling beam 22, ..., 32, ... and floor beam 23, ..., 33, ... are joint pieces, respectively. J,... Are connected (see FIG. 1).

  The unit building 10 is constructed by joining a pair of living room units 20 and 20 in the vertical direction and an auxiliary room unit 30 joined to the side of the living room unit 20 located on the lower floor. . Since the joining method between each unit 20 and 30 is known, description is abbreviate | omitted.

  Further, the ceiling beam 22 in the longitudinal direction of the living room unit 20, and the floor beam 23,... Are from the ceiling beam 32 in the longitudinal direction of the auxiliary room unit 30, and the floor beam 33,. Is also formed to be long.

  Therefore, as shown by the joining part A in FIG. 4, the intermediate part 22 a of the ceiling beam 22 in the longitudinal direction of the living room unit 20 and the upper end part 31 a of the column 31 of the auxiliary room unit 30 are joined in a facing state. It becomes.

  And the living room unit 20 provided with this junction part A is provided with the reinforcement structure 1 of the building unit which concerns on this invention.

  As shown in FIG. 1, the reinforcing structure 1 of the building unit includes a reinforcing member 40 provided over and around the position facing the column 31 of the auxiliary room unit 30, and the reinforcing member 40 and the living room unit 20. And an auxiliary reinforcing member 50 provided between the columns 21.

  The reinforcing member 40 is provided along a ceiling beam (hereinafter, referred to as a reinforced ceiling beam) 22 </ b> A including the joint portion A. Here, the “position facing the column 31 of the auxiliary chamber unit 30 and its surroundings” are a range of a predetermined distance along the left and right in the longitudinal direction of the reinforcing ceiling beam 22A from the position where the column 31 is opposed to the column 31. . The “predetermined distance range” is appropriately determined depending on the size of the living room unit 20 and the auxiliary room unit 30, the rigidity of the reinforcing ceiling beam 22A, and the like.

  As shown in FIGS. 2 and 3, the reinforcing ceiling beam 22A is formed of groove steel having a U-shaped cross section, and the reinforcing member 40 is fitted inside the upper and lower flanges 22Aa and 22Ab of the reinforcing ceiling beam 22A. A member main body 41 and a pair of attachment members 42 and 42 to which the member main body 41 is attached are provided.

  The member main body 41 is formed of channel steel having a U-shaped cross section, and the upper flange 41a is in contact with the upper flange 22Aa of the reinforcing ceiling beam 22A, and the lower flange 41b is in contact with the lower flange 22Ab of the reinforcing ceiling beam 22A.

  Further, the open end of the reinforcing ceiling beam 22A and the open end of the member main body 41 are fitted in a state of facing each other, and the reinforcing ceiling beam 22A has a closed cross-sectional structure by the member main body 41.

  The side plates 43 and 43 are welded and fixed to both side portions of the member main body 41 of the reinforcing member 40, respectively, thereby closing both side portions of the member main body 41.

  Here, the width of the upper and lower flanges 41a and 41b of the member body 41 is set to be larger than half of the width of the upper and lower flanges 22Aa and 22Ab of the reinforcing ceiling beam 22A, as shown in FIG. Yes.

  The pair of attachment members 42 and 42 are respectively located in the vicinity of both side portions of the member main body 41. The attachment member 42 includes a connection fitting 42a welded and fixed to the lower surface of the web 41c of the member main body 41, a connection plate 42b fixed to the ceiling beam 32 of the connection fitting 42a and the auxiliary chamber unit 30, and a connection fitting. A pair of bolts and nuts 42c and 42c for fixing 42a and the connection plate 42b, and a pair of bolts and nuts 42d (the other not shown) for fixing the ceiling beam 32 and the connection plate 42b are provided.

  The connection fitting 42a is formed of an angle member having an L-shaped cross section, one side is fixed along the web 41c, and the other side protrudes from the web 41c. A pair of openings 42aA and 42aA to which bolts and nuts 42c and 42c are attached are formed on the other side (see FIG. 2).

  The connecting plate 42b is formed of a rectangular flat steel plate, and a plurality of openings (not shown) to which bolts and nuts 42c and 42d are respectively attached are formed at both ends in the longitudinal direction.

  3A, one end of the connecting plate 42b is fixed to the ceiling beam 32 of the auxiliary chamber unit 30 by bolts and nuts 42d, and the other end of the connecting plate 42b is connected to the connection fitting 42a by bolts and nuts 42c. , 42c.

  In addition, 44, 45, and 46 are washers, respectively.

  Thereby, the member main body 41 of the reinforcing member 40 is provided along the reinforcing ceiling beam 22A.

  On the other hand, the auxiliary reinforcing member 50 is provided between one of the columns 21 and 21 (here, the columns positioned on the upper side in FIG. 1) positioned at both ends of the reinforcing ceiling beam 22A and the reinforcing member 40. .

  In addition, although one pillar 21 located on the upper side in FIG. 1 is the one where the distance from the joint A is larger, that is, the one away from the joint A, the necessary rigidity, design, etc. Is appropriately selected.

  The auxiliary reinforcing member 50 includes a beam portion 51 spanned between the reinforced ceiling beam 22A and the ceiling beam 22 facing the reinforced ceiling beam 22A, and a pair of attachments provided at both ends of the beam portion 51. Parts 52 and 52.

  As shown in FIG. 2, the beam portion 51 has a beam main body 51a made of channel steel having a U-shaped cross section, and mounting plates 51b (the other not shown) fixed to both ends of the beam main body 51a by welding. doing.

  Here, the beam main body 51a is fixed in a state where the open end faces downward.

  The mounting plate 51b is made of a rectangular flat steel plate, the beam main body 51a is substantially fixed at the center, and a plurality of bolt holes (not shown) are formed on both sides thereof.

  And the mounting plate 51b to which the beam main body 51a is fixed by welding is attached to the mounting portion 52 by bolts 51c passing through the bolt holes, and nuts 52d described later. Reference numerals 53 and 53 denote washers.

  The mounting portion 52 is made of channel steel having a U-shaped cross section, with the upper flange 52a in contact with the upper flange 22Aa of the reinforcing ceiling beam 22A and the lower flange 52b in contact with the lower flange 22Ab of the reinforcing ceiling beam 22A. The reinforcing ceiling beam 22A is fitted and fixed by welding.

  A plurality of bolt holes (not shown) are formed in the web 52c of the mounting portion 52, and a plurality of nuts are provided on the back side of the bolt holes (the side surrounded by the upper and lower flanges 52a and 52b). 52d,... Are welded and fixed in advance.

  Further, side plates 54 (the other not shown) are welded and fixed to both side portions of the mounting portion 52, thereby closing both side portions of the mounting portion 52.

  The pair of attachment portions 52, 52 are welded and fixed to the reinforced ceiling beam 22A and the ceiling beam 22 facing the reinforced ceiling beam 22A, respectively, and both ends of the beam portion 51 are attached to the attachment portions 52, 52. By fixing each bolt, the beam portion 51 extends in the orthogonal direction of the reinforcing member 40 and is bridged between the reinforcing ceiling beam 22 </ b> A and the ceiling beam 22.

  Next, the operation of the building unit reinforcement structure 1 of the present invention will be described.

  When a horizontal load is input from the auxiliary chamber unit 30 to the joint A, the horizontal load is input to the reinforced ceiling beam 22A.

  Here, the reinforcing ceiling beam 22A is provided with a reinforcing member 40 at and around the position facing the column 31, so that the reinforcing ceiling beam 22A having a U-shaped cross section is reinforced and inputted by the reinforcing member 40. The horizontal load is transmitted from the auxiliary reinforcing beam 22A to the other ceiling beams 22,... And the columns 21,.

  Thereby, deformation | transformation of buckling, bending, etc. of auxiliary reinforcement beam 22A is prevented, and the input horizontal load can be supported.

  Since the reinforcing member 40 is provided along the reinforcing ceiling beam 22A, the reinforcing member 40 does not protrude from the joint A to the inside of the living room unit 20.

  For this reason, even if a large blow-off space K (see FIG. 1) is formed at a position facing the pillar 31 inside the living room unit 20, it can be finished with a good appearance, and a free-bloom space K can be formed. Is possible.

  Further, when the auxiliary room unit 30 is extended, even if a large blow-off space K is formed in the living room unit 20 in advance, the reinforcing ceiling beam 22A is reinforced without the auxiliary member 40 projecting into the blow-off space K. be able to.

  In this way, when the building unit 10 is newly constructed or expanded, it can be designed freely, and the degree of design freedom can be improved.

  Further, the reinforcing member 40 is fitted in a state where the open ends of the reinforcing member 40 face each other so that the reinforcing ceiling beam 22A has a closed cross section.

  Thereby, the rigidity of the reinforcing ceiling beam 22A can be increased with a simple configuration, and the manufacturing cost can be suppressed.

  Further, the reinforcing member 40 is bolted to the reinforcing ceiling beam 22 </ b> A via an attachment member 42.

  Therefore, the reinforcement member 40 can be easily moved. In particular, when the building unit 10 is expanded, the reinforcing member 40 can be moved to easily change to a new floor plan.

  And between one of the columns 21 and 21 positioned at both ends of the reinforcing ceiling beam 22A and the reinforcing member 40, the reinforcing ceiling beam 22A and the reinforcing ceiling beam 22A extend in a direction orthogonal to the reinforcing member 40. An auxiliary reinforcing member 50 that connects the ceiling beam 22 facing 22A is provided.

  Thereby, the horizontal load input from the auxiliary room unit 30 can be supported also by this auxiliary reinforcing member 50, and even if the dimensions of the living room unit 20 and the auxiliary room unit 30 are large, they are reliably reinforced. Can do.

  Hereinafter, a reinforcing structure of a building unit in a form different from the above embodiment will be described. The description of the same or equivalent parts as those described in the above embodiment will be given with the same reference numerals.

  As shown in FIG. 5, the reinforcing member 60 of the building unit reinforcing structure according to the first embodiment has a member body 61 directly fixed to the reinforcing ceiling beam 22A by bolts / nuts B1, B1, B2, and B2.

  That is, the reinforcing member 60 includes a member main body 61 formed of channel steel, and a connecting plate 62 bolted to the reinforcing ceiling beam 22A and the ceiling beam 33 of the auxiliary chamber unit 30.

  The member main body 61 has a pair of bolt openings (not shown) formed in each of the upper flange 61a and the lower flange 61b, and the web 61c has working openings 63a and 63a positioned in the vicinity of the bolt opening of the upper flange 61a. Work openings 63b, 63b are formed in the vicinity of the bolt opening of the lower flange 61b.

  The upper flange 61a is fixed to the upper flange 22Aa of the reinforced ceiling beam 22A via bolts and nuts B1 and B1, and the lower flange 61b is fixed to the lower flange 22Ab of the reinforced ceiling beam 22A via bolts and nuts B2 and B2. Has been.

  This attachment work is performed through the work openings 63a and 63b, respectively.

  Further, as shown in FIG. 5B, one end of the connecting plate 62 is fixed to the ceiling beam 32 of the auxiliary chamber unit 30 by bolts and nuts 42d, and the other end is connected to the lower flange 22Ab of the reinforcing ceiling beam 22A. It is fixed by the nut B2.

  Thus, by directly bolting the member main body 61 of the reinforcing member 60 to the reinforcing ceiling beam 22A, the members for fixing the member main body 61 can be reduced, and the manufacturing cost can be suppressed. Become.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted.

  Hereinafter, the reinforcement structure of the building unit of the form different from the said embodiment and an Example is demonstrated. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  As shown in FIG. 6, the auxiliary reinforcing member 70 of the building unit reinforcement structure according to the second embodiment includes a beam portion 51, a pair of mounting portions 52 (not shown), a pair of mounting members 71, (The other is not shown).

  Here, since the beam part 51 and the attachment part 52 have substantially the same configuration as that of the above embodiment, the description thereof is omitted.

  In the second embodiment, the mounting portion 52 is only fitted inside the reinforcing ceiling beam 22 </ b> A and is fixed by the mounting member 71.

  The attachment member 71 includes a connection fitting 71a welded and fixed to the lower surface of the web 52c of the attachment portion 52, a connection plate 71b bolted to the connection fitting 71a and the ceiling beam 32 of the auxiliary chamber unit 30, and a connection fitting 71a. And a pair of bolts and nuts 71c and 71c for fixing the connection plate 71b, and a pair of bolts and nuts 42d (the other not shown) for fixing the ceiling beam 32 and the connection plate 42b. One side of the connection fitting 71 a protruding from the web 52 c is fixed to one end of the connection plate 71 b via bolts and nuts 71 c and 71 c, and the other end of the connection plate 71 b is connected to the ceiling beam 32 of the auxiliary chamber unit 30. It is fixed via a bolt / nut 42d.

  In addition, 44, 45, and 46 are washers, respectively.

  As a result, the attachment portion 52 of the auxiliary reinforcing member 70 is bolted to the reinforcing ceiling beam 22A.

  Therefore, the auxiliary reinforcing member 70 can be easily moved, and even when the unit building is expanded, the auxiliary reinforcing member 70 can be easily moved and installed at an appropriate position. Become.

  Further, at the place where the auxiliary reinforcing member 70 is installed, the reinforcing ceiling beam 22A and the ceiling beam 32 of the auxiliary room unit 30 are connected via a connecting plate 71b.

  Therefore, the auxiliary reinforcing member 70 can be firmly fixed to the reinforcing ceiling beam 22A, and the horizontal load transmitted from the auxiliary chamber unit 30 can be supported more stably.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted. As mentioned above, although embodiment and the Example concerning this invention have been explained in full detail with drawing, a concrete structure is not restricted to the above-mentioned embodiment. Design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.

  For example, although the reinforcing member 40 and the auxiliary reinforcing member 50 are provided in the living room unit 20 in the above-described embodiment, only the reinforcing member 40 may be used depending on the required rigidity. A plurality of auxiliary reinforcing members 50 may be provided.

It is a schematic diagram which shows the arrangement | positioning state of a building unit, and arrangement | positioning of the reinforcement structure of the building unit which concerns on embodiment of this invention. It is a perspective view which shows the reinforcement structure of the building unit shown in FIG. (A) is BB sectional drawing in FIG. 2, (b) is CC sectional drawing in FIG. It is a perspective view explaining the schematic structure of a unit building. (A) is a perspective view which shows the principal part of the reinforcement structure of the building unit which concerns on Example 1 of this invention, (b) is DD sectional drawing in Fig.5 (a). (A) is a perspective view which shows the principal part of the reinforcement structure of the building unit which concerns on Example 2 of this invention, (b) is EE sectional drawing in Fig.6 (a).

Explanation of symbols

1 Building unit reinforcement structure 20 Living room unit (first building unit)
21 Column 22 Ceiling beam 23 Floor beam 30 Auxiliary room unit (second building unit)
31 Column 32 Ceiling beam 33 Floor beam 40 Reinforcing member

Claims (8)

The middle part of the ceiling beam of the first building unit that has a skeleton in which each of the four floor beams, ceiling beams, and columns is assembled in a box shape, and each of the four floor beams, ceiling beams, and columns are assembled in a box shape A reinforcing structure of the building unit that reinforces the first building unit when joining the first and second building units so that the pillars of the second building unit having an open skeleton face each other,
A reinforcing member is provided along the ceiling beam of the first building unit over the position facing the pillar of the second building unit and the periphery thereof.
The ceiling beam and the reinforcing member of the first building unit are formed of channel steel having a U-shaped cross section, and the upper flange of the ceiling beam of the first building unit and the upper flange of the reinforcing member are in contact with each other. The lower flange of the ceiling beam of the building unit abuts the lower flange of the reinforcing member,
The reinforcing member is provided with an attachment member for fixing to the ceiling beam of the second building unit together with the ceiling beam of the first building unit ,
The ceiling extending between the reinforcing member and one of the pillars positioned at both ends of the ceiling beam of the first building unit extends in a direction orthogonal to the reinforcing member and faces the reinforcing member. A reinforcing structure for a building unit, wherein an auxiliary reinforcing member for connecting the beams is provided . The said attachment member has a connection bracket fixed to the web of the said reinforcement member, and a connection board fixed to the ceiling beam of the said connection bracket and the said 2nd building unit. Reinforcement structure of building units. The reinforcing member is fitted to the ceiling beam of the first building unit so that the open ends of the first building unit face each other, and the ceiling beam of the first building unit has a closed cross section. The reinforcing structure of a building unit according to claim 1 or 2, characterized in that The reinforcing structure of the building unit according to any one of claims 1 to 3, wherein the reinforcing member is bolted to a ceiling beam of the first building unit. The reinforcing structure of the building unit according to any one of claims 1 to 4, wherein the reinforcing member has side plates fixed to each end by welding. The auxiliary reinforcing member has a mounting portion to be attached to the ceiling beam of the first building unit,
The mounting portion is formed of groove-shaped steel having a U-shaped cross section, the upper flange of the ceiling beam of the first building unit and the upper flange of the mounting portion abut, and the lower flange of the ceiling beam of the first building unit The reinforcing structure of a building unit according to any one of claims 1 to 5, wherein the mounting unit is fixed by welding in a state in which a lower flange of the mounting portion is in contact therewith. The auxiliary reinforcing member has a mounting portion to be attached to the ceiling beam of the first building unit,
The mounting portion is formed of groove-shaped steel having a U-shaped cross section, the upper flange of the ceiling beam of the first building unit and the upper flange of the mounting portion abut, and the lower flange of the ceiling beam of the first building unit with the lower flange of the mounting portion abuts,
The reinforcing structure for a building unit according to any one of claims 1 to 5 , wherein the attaching portion is provided with an attaching member that is fixed to a ceiling beam of the second building unit . The said attachment member has a connection metal fixture fixed to the web of the said attachment part, and a connection board fixed to the ceiling metal beam of the said connection metal fitting and the said 2nd building unit, The Claim 7 characterized by the above-mentioned. Reinforcement structure of building units.

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