JP5693867B2 - building - Google Patents

Description

  The present invention relates to a building having a plurality of building units spaced apart from each other.

  Patent document 1 is known as prior art regarding a unit type building constructed by combining a plurality of building units. Patent Document 1 discloses a configuration in which a bundle for supporting a roof panel is provided on a ceiling beam of a building unit and the bundle is rotatable by a hinge with respect to the roof structure of the building unit. As a result, the building unit can be transported to the construction site without being restricted in the transportation in the height direction during the transportation of the building unit, and the mounting work related to the bundle can be simplified.

JP-A-6-42058

  On the other hand, in a unit-type building, a configuration in which a plurality of building units are set apart from each other for the purpose of increasing the degree of freedom in designing the building has been studied. With such a configuration, it is possible to obtain the advantages that the number of units can be reduced as a building, and that an intermediate portion where the building units are separated can be used as a space with a high degree of design freedom. In this case, it is conceivable to arrange a plurality of building units at a predetermined interval and to provide a living room by forming a structure (intermediate structure) different from the building unit between them.

  Here, in the building in which a plurality of building units are separated as described above, there are places where the building units do not exist, so that the installation location of the bundle is restricted to support the roofing material. Therefore, there was a problem that the degree of freedom was low regarding the installation of the roof.

  The main object of the present invention is to increase the degree of freedom regarding the installation of a roof in a building in which a plurality of building units are separated.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  In the first invention, a plurality of building units (building units 20) each having a plurality of columns (columns 21), a ceiling beam (ceiling beam 22) and a floor beam (floor beam 23) connected to the columns are provided. The building unit is separated and the intermediate part formed by the separation is provided with an intermediate structure part (intermediate structure part X3) having a different configuration from the building unit. An intermediate beam (ceiling bundle receiving beam 72) is provided across the ceiling beam on the inner street of each building unit, and a bundle (bundle 73) for supporting the roofing material is erected on the intermediate beam. It is characterized by.

  According to the above configuration, since the intermediate beam is provided between the two building units that are separated from each other, a bundle can be provided at a required position even in an intermediate portion where the building unit itself does not exist. . In this case, even if the unit separation distance differs for each building, the position of the bundle can be changed along the intermediate beam. Moreover, since a bundle can be installed regardless of the presence or absence of a building unit, the bundle can be installed at the same position as the normal unit method. As a result, in a building in which a plurality of building units are separated from each other, the degree of freedom regarding the installation of the roof can be increased.

  In the second invention, a ceiling brace (horizontal brace 76) is provided between ceiling beams on the inner street of each of the separated building units, and the intermediate beam receives the reaction force of the ceiling brace. Functions as a reaction force receiving beam.

  According to the said structure, by providing a ceiling brace in the ceiling surface of an intermediate | middle structure part, horizontal composition surface transmission can be suitably performed via a ceiling brace in the ceiling surface. Further, since the intermediate beam has both the function of the bundle receiving beam and the function as the reaction force receiving beam, the configuration can be simplified as compared with the configuration in which the bundle receiving beam and the reaction force receiving beam are provided.

  In the third invention, a bracket (bracket 75) is attached to the ceiling beam in the vicinity of the connecting portion with the intermediate beam, and the ceiling brace is connected to the bracket.

  According to the said structure, an intermediate beam will be arrange | positioned in a suitable position when processing the reaction force of a ceiling brace. Therefore, the resistance force against the horizontal force can be sufficiently exhibited.

The perspective view which shows the outline | summary of a building. The perspective view which shows the structure of a building unit. The front view which looked at the frame of the building body from the unit wife side. The top view which shows the planar structure of a housing. The perspective view which decomposes | disassembles and shows the main components of a building main body. The figure which shows the structure of the ceiling joint of a building unit. The figure which shows the state which connected the intermediate ceiling beam unit to the beam connection bracket. The disassembled perspective view which shows the structure of an intermediate | middle ceiling beam unit. The figure which shows the state which attached the docking plate to the ceiling joint and the support beam. The figure which shows the state which installed the upper frame unit on the lower floor unit, and installed the floor frame on the support beam. The top view which shows the planar structure of the housing in a 2nd floor ceiling surface. The top view which expands and shows the connection part of a horizontal brace. The top view which shows the installation position of the bundle in a 2nd floor ceiling surface. Explanatory drawing which shows the building construction procedure in a construction site.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of a building in the present embodiment.

  The building 10 is constructed as a two-story unit type building composed of a plurality of building units, and in particular, a unit separation arrangement method is used. The building 10 includes a building main body 12 fixed on a foundation 11 and a roof 13 installed above the building main body 12. The building body 12 is provided in an intermediate space between the unit structure parts X1 and X2 composed of two building unit groups that are separated from each other when viewed from one side of the building (for example, the front), and the unit structure parts X1 and X2. The intermediate structure portion X3 is provided, and a space in the building such as a living room or a hallway is provided by these structure portions X1 to X3. In this embodiment, the building unit group of each unit structure part X1, X2 is constructed with four building units 20 each. In addition, the building unit 20 is not installed in the intermediate structure portion X3, and the intermediate structure portion X3 uses the building unit 20 of the unit structure portions X1 and X2 and specifically sandwiches the intermediate structure portion X3. It is constructed by bridging various building materials on the opposing building unit 20. In the illustrated configuration, the building unit 20 is separated by one unit in the short direction (wife direction), so that the intermediate structure portion X3 is on the short side (wife surface side) of the building unit 20. The width is substantially the same as the width of.

  In the building 10 of the present embodiment, the building body 12 is constructed using a total of eight building units 20, but a building that is substantially the same size as that constructed by ten building units 20. Inner space is secured. That is, in the case of a general unit type building, each building unit is connected to each other in a state of being adjacent to each other, and almost all building spaces such as living rooms and corridors are provided in the building unit. In addition to the building space formed by the building unit itself, the building space is also formed in a portion sandwiched by a plurality of building units. The number of units in the unit structure parts X1 and X2 is arbitrary.

  The roof 13 is a close-up roof and is installed so as to straddle the structural parts X1 to X3 and cover the entire building body 12. However, the roof 13 may be a gable roof or a flat roof.

  The structure of the building unit 20 will be described with reference to FIG. The building unit 20 includes four columns 21 disposed at the four corners thereof, and four ceiling beams 22 and floor beams 23 that respectively connect the upper end and the lower end of each column 21. A rectangular frame (frame) is formed by the pillars 21, the ceiling beams 22 and the floor beams 23. The column 21 is made of a square tube-shaped square steel. Moreover, the ceiling beam 22 and the floor beam 23 are made of channel steel having a U-shaped cross section, and are installed so that the opening portions thereof face each other, that is, the groove portion faces the inside of the unit.

  More specifically, the column 21 is composed of a column main body 21a, a ceiling connection 21b and a floor connection 21c connected to the upper and lower sides of the column main body 21a, and the ceiling beams 22 are connected to the two connection surfaces of the ceiling connection 21b. The floor girder 23 is connected to the two joint surfaces of the floor joint 21c. The column main body 21a and the joints 21b and 21c are configured by connecting square steels having the same cross-sectional structure by welding.

  A plurality of ceiling beams 25 are bridged and fixed between the large ceiling beams 22 of the long side portion (girder portion) of the building unit 20 facing each other. Similarly, a plurality of floor beams 26 are bridged and fixed at predetermined intervals between the large floor beams 23 of the long side portion (girder portion) of the building unit 20 facing each other. The ceiling beam 25 and the floor beam 26 are provided horizontally on the ceiling beam 22 and the floor beam 23 on the short side (wife side) at the same interval. For example, the ceiling beam 25 is made of lip groove steel, and the floor beam 26 is made of square steel. The ceiling member 27 is supported by the ceiling beam 25 and the floor member 28 is supported by the floor beam 26.

  Next, the intermediate structure portion X3 and the configuration related thereto will be described. FIG. 3 is a front view of the housing of the building body 12 as seen from the unit wife surface side, and FIG. 4 is a plan view showing a planar configuration of the housing. 4, (a) shows the configuration of the first floor ceiling surface, and (b) shows the configuration of the first floor / second floor floor surface. FIG. 5 is an exploded perspective view showing the main components of the building body 12.

  As shown in FIG. 3, in the unit structures X1 and X2, the building units 20 are stacked in two upper and lower stages, and the upper floor side building unit 21b is located above the ceiling joint 21b of the lower floor side building unit 20. 20 floor joints 21c are placed, and the ceiling joint 21b and the floor joint 21c are connected to each other so that the two upper and lower building units 20 are connected to each other. In the following description, for convenience, the building unit 20 on the first floor is also referred to as “lower floor unit 20A”, and the building unit 20 on the second floor is also referred to as “upper floor unit 20B”.

  Here, the building units 20 arranged in the vertical direction and the building units 20 arranged in the horizontal direction are connected to each other by installing a docking plate 29 in the joints 21b and 21c of each building unit 20. Yes. In this case, in addition to the vertical connection of the building unit 20 by the single docking plate 29, the horizontal connection is made at the boundary part (the first floor and the second floor part) between the lower floor unit 20A and the upper floor unit 20B. ing. Further, the building unit 20 is horizontally connected by one docking plate 29 on the upper surface of the upper floor unit 20B. Such a method for connecting the building units 20 is known as an existing unit method.

  The intermediate structure portion X3 is constructed by being sandwiched between a pair of unit structure portions X1 and X2. The intermediate structure portion X3 includes an intermediate ceiling beam unit 31 for constructing the ceiling portion, and a floor portion. A floor frame 32 for construction is provided.

  As shown in FIG. 3 and FIG. 4A, the intermediate ceiling beam unit 31 is provided between two building units 20 facing each other with the intermediate structure portion X3 interposed therebetween. An intermediate ceiling beam unit 31 having the same configuration is provided on the second floor ceiling. The intermediate ceiling beam unit 31 is connected between the ceiling joints 21b of the two building units 20 that are separated from each other, and a cantilever (cantilever structure) support beam 33 as a support member, and a pair of support beams 33. And an intermediate ceiling beam 34 provided on the ceiling. The support beam 33 on the first floor ceiling functions as a floor receiving beam. The intermediate ceiling beam 34 is installed at a portion corresponding to the end face of the building unit 20, and in this sense, it is a ceiling end beam.

  As shown in FIGS. 3 and 4B, the first floor part and the second floor part are each configured by installing a floor frame 32 formed in a rectangular frame shape. Here, on the first floor portion, the floor frame 32 is installed by being placed on the top end of the foundation 11. In this case, the floor frame 32 of the first floor portion is configured to be fixed using anchor bolts (not shown) extending upward from the foundation 11. This is the same as the method for fixing the building unit 20 to the foundation 11. In addition, in the second floor part, a floor frame 32 is installed by being placed on the intermediate ceiling beam unit 31.

  The floor frame 32 basically has the same configuration as the floor portion of the building unit 20, and the configuration will be described with reference to FIG. As shown in FIG. 5, the floor frame 32 includes four column-less fittings 36 disposed at the four corners thereof, and four floor frame large beams 37 that respectively connect the column-less fittings 36. A rectangular frame main body is formed by the pillar-less joint 36 and the floor frame girder 37, and a plurality of floor girder 38 are spaced at a predetermined interval between the floor frame girder 37 facing the long side (girder). Is stretched and fixed. The floor frame girder 37 and the floor girder 38 have the same configuration as that of the building unit 20. That is, the floor frame girder 37 is made of the same channel steel as the unit floor girder 23, and is installed so that its opening faces each other. The floor beam is made of the same square steel as the floor beam, and is installed at the same pitch as the floor beam. A floor material (not shown) is supported by the floor beam.

  When the configuration of the floor frame 32 is compared with the configuration of the floor portion of the building unit 20, the difference is that a column-less connection 36 is provided instead of the floor connection 21c. The column-less joint 36 has two joint plate portions 36a for joining two floor frame large beams 37, and a bottom plate portion 36b provided at the bottom thereof. The two splicing plate portions 36a are joined at right angles to each other, and the top portions thereof are arranged facing the inside of the unit. The bottom plate portion 36b is a member corresponding to the column base plate portion (end plate 65 in FIG. 10) of the floor finish 21c.

  Since the floor frame 32 basically has the same configuration as the floor configuration of the building unit 20, various building materials of the floor configuration section such as a floor beam material and a floor surface material can be used in common. From the viewpoints of construction and workability, the construction is convenient.

  As shown in FIG. 3, in the unit structure portions X1, X2 and the intermediate structure portion X3, the height position of the floor beam 23 of the building unit 20 and the height position of the floor frame beam 37 are the same. The height of the floor surface can be made the same. Moreover, in intermediate structure part X3, it has a pillar-less structure in both the first floor part and the second floor part, and the indoor space can be expanded correspondingly. That is, for example, the Y portion in FIG. 4 is a portion where four pillars are gathered in the normal unit method, but the building 10 is configured to gather only two pillars.

  Next, the detailed structure in the connection part with the ceiling connection 21b of the building unit 20 in the intermediate structure part X3 is demonstrated using FIGS.

  6A and 6B are diagrams showing the configuration of the ceiling joint 21b of the building unit 20, wherein FIG. 6A is a plan view and FIG. 6B is a side view. A ceiling girder 22 is connected to the ceiling joint 21b in two directions, and a beam coupling bracket 41 as a coupling fitting is fixed to a joint surface on the opposite side to the ceiling girder 22 on the wife side. The joint surface to which the beam connecting bracket 41 is fixed is a ceiling joint surface in the building unit 20. The ceiling joint 21b is provided with a backing metal at the connecting portion with the column main body 21a (the lower end of the ceiling joint 21b), but the illustration is omitted for convenience.

  The beam connecting bracket 41 is made of a substantially U-shaped steel plate, and both ends are fixed to the joint surface of the ceiling joint 21b by welding or the like. The beam connecting bracket 41 is formed with a beam mounting surface 42 that is parallel to the joint surface of the ceiling connection 21b, and a bolt hole 43 that leads to the beam mounting surface 42 is formed. A plurality of nuts 44 are fixed coaxially to the bolt holes 43 on the back side (finishing surface side).

  The beam connecting bracket 41 is welded (fixed) to the ceiling joint 21b of the building unit 20 in the unit manufacturing factory, and the protruding height from the ceiling joint 21b takes into account the unit transportation work to the construction site. The dimensions are as follows. In this case, the beam connecting bracket 41 has a protruding height that does not exceed the docking line DL when two adjacent units are joined. In this embodiment, the protruding height of the beam connecting bracket 41 is The dimensions are from the joint surface to the docking line DL. Specifically, the width in the thickness direction (projecting dimension) of the beam connecting bracket 41 is about 30 mm at the maximum, so that even when the bracket 41 is factory-attached, the unit dimension is The inconvenience of exceeding the transport limit can be avoided.

  Note that the docking line DL shown in FIG. 6 is not actually a unit boundary line that connects the building units 20 to each other, but the building itself of this embodiment is intended to divert the existing unit method as much as possible. A docking line DL is also set at a boundary portion between the structure parts X1 and X2 and the intermediate structure part X3.

  As shown in FIG. 6A, the end plate 45 (capital plate portion) provided on the upper surface portion of the ceiling joint 21b is a pin used for connecting the building units 20 using the docking plate 29. Holes 46 and 47 are formed.

  7A and 7B are views showing a state in which the intermediate ceiling beam unit 31 is connected to the beam connecting bracket 41, where FIG. 7A is a plan view and FIG. 7B is a side view. FIG. 8 is an exploded perspective view showing the configuration of the intermediate ceiling beam unit 31.

  As shown in FIGS. 7 and 8, in the intermediate ceiling beam unit 31, a pair of support beams 33 are connected to both ends of the intermediate ceiling beam 34 via joint plates 51. Both the support beam 33 and the intermediate ceiling beam 34 are made of the same grooved steel as the ceiling large beam 22 of the building unit 20, and the web portions thereof are connected by a joint plate 51. In FIG. 7, the support beam 33 is fixed to the beam connection bracket 41 of the ceiling joint 21 b, and the intermediate ceiling beam 34 is connected to the free end side of the support beam 33.

  Here, the joint plate 51 is fixed to the web part of the intermediate ceiling beam 34 by welding or the like with a part protruding from the intermediate ceiling beam 34, and the protruding part is joined to the web part of the support beam 33 to be bolted It is fixed by 52 etc. In the protruding portion of the joint plate 51 from the intermediate ceiling beam 34, a hole 53 is formed to improve workability when the intermediate ceiling beam 34 is assembled on site.

  The bolt insertion hole 51 a into which the bolt 52 is inserted in the joint plate 51 is preferably a long hole extending in the longitudinal direction of the intermediate ceiling beam 34. Thus, the length of the intermediate ceiling beam unit 31 can be finely adjusted in a state where the intermediate ceiling beam 34 is connected to the support beam 33. It should be noted that at least one of the bolt insertion holes only needs to be a long hole in the connecting portion of the joint plate 51 and the support beam 33.

  Although not shown, the intermediate ceiling beam 34 is formed with a beam through-hole through which an air-conditioning duct or the like is inserted and an outer wall fixing hole for fixing an outer wall panel, similarly to the ceiling large beam 22 of the building unit 20. ing. Since the intermediate ceiling beam 34 basically has the same configuration as the unit ceiling beam 22, it is not necessary to newly design an outer wall panel for the intermediate structure portion X 3, and the construction method is the same as that on the building unit 20 side. It is possible to install external wall panels.

  An end face plate 54 is fixed to the end face portion of the channel steel of the support beam 33 by welding or the like. The end face plate 54 is a part for joining the support beam 33 to the beam mounting face 42 of the beam connecting bracket 41. The end face plate 54 is formed with a through hole 54 a that communicates with the bolt hole 43 of the beam connecting bracket 41. ing. In a state where the support beam 33 is joined to the beam connection bracket 41, the support beam 33 is connected and fixed to the beam connection bracket 41 by screwing the bolt 55 into the through hole 54a and the bolt hole 43.

  A base plate 56 is installed on the upper flange portion of the support beam 33. The base plate 56 has the same structure and function as the end plate 45 of the ceiling joint 21b in the support beam 33, and is used for the connection by the docking plate 29 similarly to the end plate 45 of the ceiling joint 21b. Pin holes 57 and 58 are formed. On the other hand, a pin hole 59 is formed in the upper flange portion of the support beam 33 at a position corresponding to the pin hole 57 of the base plate 56. The base plate 56 is fixed to the upper flange portion of the support beam 33, and the stacking pins 61 are inserted and fixed from below into the pin holes 59 of the support beam 33 and the pin holes 57 of the base plate 56. On the other hand, a stacking pin 62 is attached to the end plate 45 of the ceiling connection 21b so as to extend upward (this is the same as in the prior art).

  In the configuration shown in FIG. 7, the upper surface of the base plate 56 on the support beam 33 and the upper surface of the end plate 45 of the ceiling joint 21 b have the same height. In addition, two stacking pins 61 and 62 are installed at symmetrical positions across the docking line DL, and distances L1 and L2 from the docking line DL are L1 = L2.

  In the present embodiment, in terms of structural mechanics, the support beam 33 transmits the load of the upper structure (the floor frame 32 or the like) to the adjacent unit column via the beam connection bracket 41.

  FIGS. 9A and 9B are views showing a state in which the docking plate 29 is attached to the ceiling joint 21b and the support beam 33, where FIG. 9A is a plan view and FIG. 9B is a side view.

  The docking plate 29 has a size that covers almost the entire base plate 56 on the support beam 33 and the end plate 45 of the ceiling joint 21b, and is attached with a pair of stacking pins 63 and 64 that protrude downward. Yes. The docking plate 29 is installed on the base plate 56 and the end plate 45. At this time, the stacking pins 63 and 64 of the docking plate 29 are inserted into the pin holes 47 of the ceiling connection 21b and the pin holes 58 of the base plate 56. It is supposed to be. In this case, two stacking pins 63 and 64 are installed at symmetrical positions across the docking line DL, and the distances L3 and L4 from the docking line DL are L3 = L4.

  FIG. 10 is a diagram showing a state in which the upper floor unit 20B is installed on the lower floor unit 20A, and the floor frame 32 is installed on the support beam 33, where (a) is a plan view and (b) is a plan view. It is a side view.

  As shown in FIG. 10, a floor frame 32 is installed above the support beam 33 and on the docking plate 29. Specifically, in this case, the column-less joint 36 of the floor frame 32 is installed on the docking plate 29, and the stacking pins 61 are inserted into the pin holes 36c formed in the bottom plate portion 36b of the pillar-less joint 36. . Further, the floor frame 32 is fixed to the support beam 33 by fastening bolts 67 at a plurality of locations. Thereby, the floor frame 32 is joined to the support beam 33 connected to the ceiling joint 21b of the building unit 20.

  On the other hand, the upper floor unit 20B is installed above the lower floor unit 20A and on the docking plate 29. Specifically, in this case, the floor connection 21c of the upper floor unit 20B is installed on the docking plate 29, and the stacking pins 62 are inserted into the pin holes 65a formed in the end plate 65 of the floor connection 21c. Further, the upper floor unit 20B is fixed to the lower floor unit 20A by fastening bolts 68 at a plurality of locations. Note that the pin hole 36c of the bottom plate portion 36b of the pillar-less fitting 36 and the pin hole 65a of the end plate 65 of the floor fitting 21c are provided at symmetrical positions with the docking line DL interposed therebetween.

  Here, the floor frame 32 is arranged on the ceiling surface of the first floor, so that when the horizontal force is input to the building 10, it is possible to process the horizontal composition transmission by the floor frame 32 of the second floor. The floor frame 32 is not installed on the ceiling surface. Therefore, in the present embodiment, a horizontal brace 76 is disposed between the building units so as to process a horizontal force on the second floor ceiling surface.

  FIG. 11 is a plan view showing a planar configuration of the frame on the second-floor ceiling surface, and FIG. 12 is an enlarged plan view showing a connecting portion of the horizontal brace 76.

  As shown in FIGS. 11 and 12, on the outer surface of the web of the ceiling beam 22 of the building unit 20 (upper floor unit 20 </ b> B), a ceiling bundle receiving beam 72 is interposed via a bracket 71 at an intermediate position in the longitudinal direction of the ceiling beam 22. Are connected. The ceiling bundle receiving beam 72 is made of, for example, channel steel. The ceiling bundle receiving beam 72 is provided between the building units 20 arranged to face each other in the intermediate structure portion X3.

  The ceiling bundle receiving beam 72 is provided with a bundle 73 for supporting the roof. Specifically, a base plate 74 is fixed to the upper surfaces of the ceiling beam 22 and the ceiling bundle receiving beam 72 of the building unit 20 so as to straddle both, and the bundle 73 is fixed to the upper surface of the base plate 74. In this case, the bundle 73 is configured to stand on the docking line DL. FIG. 13 is a plan view showing the installation position of the bundle 73 on the second-floor ceiling surface. In FIG. In the case of the present embodiment, bundles 73 are provided at a total of six locations on the second floor ceiling surface. The positions of the ceiling bundle receiving beam 72 and the bundle 73 may be determined in accordance with the interval between the two building units 20 that are separated from each other.

  A horizontal brace 76 is provided on the ceiling surface of the second floor. Specifically, brackets 75 are fixed to a plurality of locations on the outer surface of the web of the ceiling beam 22 of the building unit 20, and horizontal braces 76 are arranged in an X shape with the brackets 75 as supported end portions. The horizontal brace 76 is fixed to the bracket 75 by bolt joining. In the present embodiment, brackets 75 are provided in the vicinity of the ceiling joint 21b and in the vicinity of the ceiling bundle receiving beam 72 in the ceiling girder 22, and two sets of horizontal braces 76 are arranged between each pair of opposed arrangement units. It is installed. In this configuration, the horizontal bracing 76 secures the horizontal surface transmission force of the second floor ceiling surface. The horizontal brace 76 is attached with a turnbuckle 77 as an adjustment mechanism for adjusting the tension.

  As shown in FIG. 11, the intermediate portion sandwiched between each pair of building units 20 on the second-floor ceiling surface is divided into a plurality of pieces, and horizontal braces 76 are arranged in a substantially diagonal shape for each divided region. The ceiling bundle receiving beam 72 has a function as a reaction force receiving beam that receives the reaction force of the horizontal brace 76. In addition, the position of the horizontal brace 76 is good to be determined according to the space | interval of the both building units 20 left apart.

  Next, the construction procedure at the construction site for the building 10 in the present embodiment will be described. FIG. 14 is an explanatory diagram showing a building construction procedure at a construction site.

  In the construction at the installation site, as shown in FIG. 14A, first, a floor frame 32 for the first floor is installed on the foundation 11, and a plurality of lower floor units 20A are disposed on both sides of the floor frame 32. Let go of. At this time, the lower floor unit 20A that will be adjacent to the intermediate structure portion X3 is arranged so that the beam connecting bracket 41 is positioned on the inner ceiling surface. The beam connecting bracket 41 is pre-attached at the unit manufacturing factory. When installing the lower floor unit 20A and the floor frame 32 for the first floor, these are fixed to the foundation 11 with anchor bolts. The installation order of the lower floor unit 20A and the floor frame 32 is arbitrary. Then, a floor material or the like is appropriately installed on the floor frame 32.

  Next, as shown in FIG. 14 (b), the intermediate ceiling beam unit 31 is installed so as to be bridged between the ceiling ports 21b of the lower floor units 20A arranged to face each other. At this time, out of the support beam 33 and the intermediate ceiling beam 34 constituting the intermediate ceiling beam unit 31, the support beam 33 is first fixed to the beam connection bracket 41, and then a pair of support beams 33 that are spaced apart from each other. The intermediate ceiling beam 34 is fixed to the frame. Then, the docking plate 29 is attached to the ceiling connection 21b and the support beam 33 (specifically, the base plate 56).

  Then, as shown in FIG.14 (c), the floor frame 32 for the second floor is installed on the intermediate ceiling beam unit 31 of the ceiling part of the first floor. At this time, the load of the floor frame 32 is substantially supported by the support beam 33. Then, a floor material or the like is appropriately installed on the floor frame 32.

  Then, as shown in FIG.14 (d), the upper floor unit 20B is installed on the lower floor unit 20A.

  Then, as shown in FIG.14 (e), the intermediate | middle ceiling beam unit 31 is installed so that it may bridge | cross between the ceiling connection 21b of the upper floor unit 20B opposingly arranged. At this time, out of the support beam 33 and the intermediate ceiling beam 34 constituting the intermediate ceiling beam unit 31, the support beam 33 is first fixed to the beam connection bracket 41, and then a pair of support beams 33 that are spaced apart from each other. The intermediate ceiling beam 34 is fixed to the frame.

  Further, as shown in FIG. 14 (f), on the second floor ceiling surface, a ceiling bundle receiving beam 72 is attached between the ceiling large beams 22 of the upper floor unit 20B opposed to each other, and the ceiling large beam 22 and the ceiling bundle receiving beam 72 are also attached. A horizontal brace 76 is attached in a horizontal plane surrounded by (see FIG. 11). A bracket 75 for attaching the horizontal brace 76 is pre-installed at the unit manufacturing factory. Further, the bundle 73 is erected on the ceiling bundle receiving beam 72 and the roof material 78 is installed in a state of being supported by the bundle 73 on the ceiling bundle receiving beam 72. The building 10 of the unit separation arrangement method is constructed by such work.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since a ceiling bundle receiving beam 72 is provided over the inner large ceiling beam 22 of each building unit 20 placed apart, and a bundle 73 for supporting the roofing material is erected on the ceiling bundle receiving beam 72. Even in an intermediate portion where the building unit itself does not exist, the bundle 73 can be provided at a required position. In this case, even if the unit separation distance differs for each building, the position of the bundle 73 can be changed along the ceiling bundle receiving beam 72. Further, since the bundle 73 can be installed regardless of the presence or absence of the building unit 20, the bundle 73 can be installed at the same position (for example, on the docking line) as the normal unit method. As a result, in a building in which a plurality of building units 20 are separated from each other, the degree of freedom regarding the installation of the roof can be increased.

  In addition to functioning as a bundle receiving beam, the ceiling bundle receiving beam 72 functions as a reaction force receiving beam that receives the reaction force of the horizontal brace 76 provided on the second floor ceiling surface of the intermediate structure portion X3. The configuration can be simplified as compared with the configuration in which the reaction force receiving beams are provided.

  Since the bracket 75 is attached in the vicinity of the connecting portion of the ceiling unit beam 22 of the building unit 20 to the ceiling bundle receiving beam 72 and the horizontal brace 76 is connected to the bracket 75, the reaction force of the horizontal brace 76 is processed. The ceiling bundle receiving beam 72 can be arranged at a suitable position. Therefore, the resistance force against the horizontal force can be sufficiently exhibited.

  Further, as an effect of providing the horizontal brace 76 on the second floor ceiling surface of the intermediate structure portion X3, the horizontal composition transmission can be suitably performed on the second floor ceiling surface via the horizontal brace 76.

  Moreover, in the building 10 of this embodiment, the support beam 33 is provided in the ceiling joint 21b of the building unit 20 that is disposed to face the intermediate space side (unit separation portion), and the support beam 33 is used to provide an intermediate structure. It was set as the structure which supports the floor frame 32 which comprises the part X3. In this case, it is sufficient that the support beam 33 has a size and strength with respect to the fixed load and the loading load to support the floor frame 32, and does not depend on the size of the building unit 20 or the intermediate structure portion X3. It has become. Therefore, in contrast to the conventional technique in which the floor panel is fixed by a connecting beam (joint beam) extending along the unit ceiling large beam, in this conventional technique, it is necessary to prepare a connecting beam having a length matching the size of the building unit 20. On the other hand, in the present embodiment, it is possible to use the common support beam 33 regardless of the size of the building unit 20. As a result, it is possible to greatly improve the workability in constructing the intermediate structure portion X3 in the building 10 of the unit separation arrangement method.

  Since the support beams 33 are provided as cantilever beams on the inner streets of the opposingly arranged building units 20 and the floor frame 32 is installed across the support beams 33, the strength calculation in the intermediate structure portion X3 is performed. What is necessary is just to be performed about the support beam 33, and structural design can be implemented easily. Further, the support beams 33 are provided for each column 21 of the building unit 20, in other words, it is sufficient to prepare as many as the number of columns 21. Therefore, it is not necessary to prepare the support beams 33 more than the number of columns 21, and it is possible to simplify the configuration in constructing the intermediate structure portion X3.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  In the above-described embodiment, two types of brackets 71 and 75 are fixed to the inner ceiling beam 22 of the building unit 20 that is separated from each other, and the ceiling bundle receiving beam 72 is fixed by the bracket 71 and the bracket 75 is horizontally Although the brace 76 is fixed, this may be changed, a common bracket may be used, and the ceiling bundle receiving beam 72 and the horizontal brace 76 may be fixed together by the common bracket.

  In the above embodiment, the horizontal brace 76 is arranged on the second floor ceiling surface of the intermediate structure portion X3 without intersecting the ceiling bundle receiving beam 72. However, the horizontal brace is changed so as to intersect the ceiling bundle receiving beam 72. Can also be arranged.

  A configuration in which a brace material or a bundle is connected in advance at a unit manufacturing factory to an intermediate beam (ceiling bundle receiving beam 72) that connects between building units that are placed apart from each other may be employed. In this case, the brace material or bundle is integrated with the intermediate beam, and the integrated object is transported to the construction site by a truck or the like.

  -The building to which this invention is applied is not limited to the building 10 of the structure mentioned above. For example, it may be applied to a one-story building instead of a multi-story building.

  DESCRIPTION OF SYMBOLS 10 ... Building, 12 ... Building body, 20 ... Building unit, 21 ... Pillar, 22 ... Ceiling girder, 23 ... Floor girder, 72 ... Ceiling bundle beam (intermediate girder), 75 ... Bracket, 76 ... Horizontal brace, DL ... docking line (unit boundary line), X1, X2 ... unit structure, X3 ... intermediate structure.

Claims (4)

A plurality of building units having a plurality of columns and a ceiling beam and a floor beam connected to the columns, wherein the building unit is separated, and the building unit is formed in an intermediate portion formed by the separation. Is a building with an intermediate structure of different structure,
An intermediate beam is provided across the ceiling beam on the inner street of each of the separated building units,
The upper surfaces and the intermediate joists of the ceiling girders in said street is base plate is fixed so as to straddle them both the top,
Wherein the top surface of the base plate, building, characterized in that the bundle for supporting the roofing is erected. Wherein the top surface of the base plate, according to claim 1, wherein the bundle on the side in a in and becomes above the intermediate joists position of the intermediate section than the ceiling girder in said street is erected building . A ceiling brace is provided between the ceiling beams on the inner street of each of the separated building units,
The building according to claim 1 or 2, wherein the intermediate beam functions as a reaction force receiving beam that receives a reaction force of the ceiling brace.   The building according to claim 3, wherein a bracket is attached to the ceiling beam in the vicinity of a connection portion with the intermediate beam, and the ceiling brace is connected to the bracket.

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