JP5667775B2 - building - Google Patents

Description

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

  In a unit-type building composed of a plurality of building units, a configuration in which a plurality of building units are separated from each other for the purpose of increasing the degree of freedom in designing the building is being 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. As a prior art relating to a building in which two building units are separated from each other in this manner, for example, a building disclosed in Patent Document 1 is known.

  Patent Document 1 discloses a unit type building composed of an upper floor portion and a lower floor portion, in which building units connected to each other at a predetermined interval are connected by a floor panel. As a method of installing the floor panel, a connecting beam (joint beam) is fixed to the side of the ceiling beam of the lower floor unit in parallel to the ceiling beam, and the floor panel is fixed to the connecting beam.

JP 2004-250915 A

  In the building of Patent Document 1 described above, a connecting beam having a length equivalent to that of the building unit is fixed in parallel to the ceiling beam of the building unit. As a pre-installation work, installation work of a connecting beam having the same length as the ceiling beam is forced. In such a case, there is a concern about deterioration of workability while using the building unit in order to improve workability on site. In addition, when a plurality of building units are separated as described above, the long side portions (girder faces) of the building units arranged opposite to each other are arranged due to the structural strength of the intermediate structure portion constructed between the building units. It is thought that it will be installed in the opposite direction, and the connecting beam will be long. Therefore, there is a possibility that on-site workability is deteriorated as described above. From this situation, it is considered that there is room for improvement in building the intermediate structure between building units.

  The main object of the present invention is to improve the workability in constructing an intermediate structure in a building in which a plurality of building units are separated and an intermediate structure is provided between the building units. Is.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary. In the following, in order to facilitate understanding, a corresponding configuration example in the embodiment of the invention is appropriately shown in parentheses, etc., but is not limited to the specific configuration shown in parentheses.

  In the first invention, a plurality of building units (building units 20) having a plurality of unit columns (columns 21) and unit beams (ceiling beams 22 and floor beams 23) connected to the unit columns are provided. In the building unit in which 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. The unit pillar or the unit beam is provided with a support member (support beam 33) in a direction extending toward the intermediate portion, and an upper structure (floor frame 32) provided on the upper side by the support member. It is characterized by being supported.

  According to the building having the above configuration, the support member provided on the unit column or the unit beam is provided as the intermediate structure portion, and the upper structure is supported by the support member. For example, an upper floor structure or the like is supported by the support member in the intermediate structure portion. In this case, the support member is provided in a direction extending from the unit column or the unit beam to the intermediate portion side, and it is sufficient if the support member has a size and strength for a fixed load and a load load to support the upper structure. It is independent of the size of the building unit or intermediate structure. 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 girder, it is necessary to prepare a connecting beam having a length that matches the size of the building unit. On the other hand, in this invention, it becomes possible to use a common support member irrespective of the magnitude | size of a building unit. As a result, in a building where a plurality of building units are separated and an intermediate structure portion is provided between the building units, the workability in constructing the intermediate structure portion can be improved.

  In the second aspect of the invention, in each of the opposingly arranged building units, the unit column of each building unit is provided with a cantilever beam (support beam 33) as the support member in a direction extending from one building unit to the other building unit. The upper structure is installed in a state straddling each cantilever.

  The unit column is connected to a cantilever beam as a support member, and the upper structure is supported by the cantilever beam. In this case, the strength calculation in the intermediate structure portion only needs to be performed for the cantilever beam, and the structural design can be easily performed. In addition, the cantilever is provided for each unit column, in other words, it is sufficient to prepare as many as the number of unit columns. Therefore, it is possible to simplify the configuration for constructing the intermediate structure.

  According to a third aspect of the present invention, a wall fixing horizontal member (intermediate ceiling) for fixing a wall member in the intermediate structure portion is provided between the cantilever beams respectively connected to the unit columns of the building units arranged to face each other. Beams 34) are connected.

  According to the said structure, a wall member can be installed using the horizontal member for wall fixation between a pair of cantilever beams in an intermediate | middle structure part. In this case, it is desirable that the cantilever beam is connected to the ceiling opening of the unit column, and the horizontal fixing member for wall fixing is made of the same steel material as the unit ceiling large beam of the building unit. Thereby, a wall member can be installed in an intermediate structure part with the same method as installing a wall member with respect to a building unit. Therefore, it becomes unnecessary to newly design a wall member (wall structure) for the intermediate structure portion, and the number of design steps can be reduced.

  In a fourth aspect of the invention, the support member is provided on a joint surface opposite to the unit ceiling girder (ceiling girder 22) in a ceiling joint (ceiling joint 21b) provided in the unit column, A support plate portion (base plate 56) for mounting and supporting the upper structure is fixed at the same height as the stigma plate portion (end plate 45) provided at the upper end of the joint.

  According to the said structure, the supporting member is provided next to the ceiling connection of a building unit, and also the support plate part of the supporting member is provided in the same height position as the stigma plate part of a ceiling connection. In this case, the same structure (that is, the structure of the normal unit method) as the case where a plurality of building units are installed side by side and the ceiling joints are provided adjacent to each other at the unit boundary, is the same as the building unit and the intermediate structure. It can also be realized at the boundary part. That is, an intermediate structure part can be constructed using a construction method similar to combining building units. For example, it becomes possible to connect the stigma plate portion of the ceiling joint and the support plate portion of the support member using a unit connection plate (docking plate) for connecting building units to each other.

  In the fifth invention, a building unit on the upper floor side is placed on the building unit on the lower floor side, and the ceiling connection (ceiling connection 21b) of the building unit on the lower floor side and the building on the upper floor side It is a multi-story building in which a unit floor connection (floor connection 21c) is connected via a unit connection plate (docking plate 29), and a plurality of floor frame beams (floor frame beams 37) are used as the upper structure. And a floor frame (floor frame 32) having a frame connection (column-less connection 36) for connecting them, and the frame connection includes a column provided at a lower end portion of the floor connection of the building unit. A bottom plate portion (bottom plate portion 36b) having the same form as the leg plate portion (end plate 65) is provided, and the support plate portion of the support member and the bottom plate portion of the frame joint are in a position where they are vertically positioned. floor Frame is disposed, the support plate part via the unit coupling plate and said bottom plate portion is connected.

  According to the fifth aspect, similarly to connecting building units, the support member and the floor frame above it can be connected using the unit connection plate. In this case, the parts can be shared. For example, when the bottom plate portion of the frame joint is provided with a pin insertion hole (pin hole 36c) into which the locking pin (stacking pin 61) is inserted, like the column base plate of the unit floor joint. Well, by adopting a configuration in which the locking pin is inserted into this pin insertion hole, the floor frame is supported by the support member in the same configuration as the building unit on the upper floor side is supported by the building unit on the lower floor side. can do.

  In the sixth invention, a ceiling brace (horizontal brace 76) is provided across the ceiling beams on the ceiling surface of the intermediate structure portion sandwiched between the ceiling beams of each building unit arranged to face each other.

  In this case, horizontal composition transmission can be suitably performed on the ceiling surface of the intermediate structure portion via the ceiling brace. As described above, a floor frame having a plurality of floor frame beams and frame joints is installed on the floor surface of the intermediate structure portion, while a ceiling brace is installed on the ceiling surface, so that the horizontal frame input to the building can be obtained. The force can be suitably processed on the floor surface and the ceiling surface.

  In the seventh invention, the unit pillar or the unit beam extends toward the outside of the unit, and does not exceed a unit boundary line (docking line DL) that is a boundary line when adjacent building units are joined together. A connection fitting (beam connection bracket 41) having a height is fixedly provided at a unit manufacturing factory, and the support member is connected to the unit column or the unit large beam via the connection fitting.

  According to the said structure, since a connection metal fitting is previously attached with respect to the building unit in the unit manufacturing factory, work becomes easy regarding the fixation of the supporting member with respect to a building unit in a construction site. In other words, according to the method of attaching the connection bracket to the factory in advance and fixing the support member to the connection bracket, the positioning work for fixing the support member to the position of the unit column or unit beam at the construction site is easy. It becomes. The connecting bracket is fixed at the unit manufacturing factory by welding or the like, but has a protruding height that does not exceed the unit boundary when the adjacent building units are joined together. Even if it is the structure which protrudes in and is provided with a connection metal fitting, it can suppress that the trouble regarding a dimension regulation is brought about at the time of conveyance of the building unit to a construction site.

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. The front view which looked at the housing of the building main body from the unit wife surface side in other embodiment.

  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.

  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.

  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.

  A support beam 33 is provided on the ceiling joint 21b of the building unit 20 that is disposed so as to extend to the intermediate space side (unit separation portion), and the support frame 33 supports the floor frame 32 that constitutes the intermediate structure portion X3. It was set as the structure to do. 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.

  Since the floor frame 32 supported by the support beam 33 is lighter than the building unit 20, the vertical load (fixed load / loading load) transmitted to the column 21 of the building unit 20 via the support beam 33 is the building. It becomes smaller than the unit 20. Therefore, a relatively simple method of connecting the support beam 33 to the ceiling joint 21b by bolt connection to the beam connection bracket 41 at a plurality of locations may be used.

  Since the intermediate ceiling beam 34 for fixing the outer wall panel in the intermediate structure portion X3 is provided between the pair of support beams 33 as the intermediate ceiling beam unit 31, the intermediate ceiling beam 34 is used in the intermediate structure portion X3. As with the building unit 20, an outer wall panel can be installed. In this case, since the intermediate ceiling beam 34 is made of grooved steel similar to the ceiling beam 22 of the building unit 20, the intermediate structure portion X 3 is used in the same manner as the outer wall panel is installed on the building unit 20. External wall panels can be installed at Therefore, it is not necessary to newly design the outer wall panel for the intermediate structure portion X3, and the design man-hour can be reduced.

  In the intermediate structure portion X3, the support beams 33 are separately provided on both sides of the intermediate structure portion X3, so that the intermediate structure portion X3 can be prevented from acting like whipping during an earthquake.

  The support beam 33 constituting the intermediate structure portion X3 has the same configuration as the ceiling joint 21b of the building unit 20. Specifically, in the support beam 33, a base plate 56 is provided in accordance with the configuration of the end plate 45 of the ceiling connection 21b, and the installation height of the base plate 56 is made the same as that of the end plate 45 of the ceiling connection 21b. In this case, in the existing unit construction method, the unit structure has the same structure as connecting the ceiling joints of the building unit 20 or connecting the floor joint of the upper floor unit to the ceiling joint of the lower floor unit. This can also be realized at the boundary between the portions X1, X2 (building unit 20) and the intermediate structure portion X3. The docking plate 29 used in the unit method can also be used.

  Since the floor frame 32 having the same configuration as the floor portion of the building unit 20 is installed as the floor structure of the intermediate structure portion X3, the docking plate 29 is used in the same manner as the building units 20 are connected to each other. The support beam 33 and the floor frame 32 above it can be connected. In this case, the parts can be shared.

  Since the horizontal brace 76 is provided on the ceiling surface of the intermediate structure portion X3 sandwiched between the ceiling beams 22 of each of the building units 20 that are disposed to face each other, the horizontal brace 76 is provided across the ceiling beams 22 so as to be horizontal on the ceiling surface of the intermediate structure portion X3. The composition transmission can be suitably performed via the horizontal brace 76. In the building 10 of the present embodiment, the floor frame 32 can sufficiently exert a resistance against the horizontal force in the floor portion of the intermediate structure portion X3, but this cannot be achieved in the ceiling portion (second floor ceiling portion). In this regard, since the horizontal brace 76 is installed on the second-floor ceiling portion of the intermediate structure portion X3, a sufficient resistance against horizontal force can be secured even on the second-floor ceiling portion.

  A beam connection bracket 41 that extends toward the outside of the unit and has a protruding height that does not exceed the docking line DL is attached to the ceiling connection 21b of the building unit 20 in advance at the unit manufacturing factory, and the beam connection bracket 41 is supported by the support beam. 33 was fixed. Therefore, at the construction site, work can be facilitated with respect to fixing of the support beam 33 to the building unit 20. In other words, according to the technique of attaching the beam connecting bracket 41 to the factory in advance and fixing the support beam 33 to the beam connecting bracket 41, the positioning of the support beam 33 to be fixed to the building unit 20 at the construction site is determined. Work becomes easy. In addition, since the beam connecting bracket 41 has a protruding height that does not exceed the docking line DL, it is possible to suppress problems related to dimensional restrictions when the building unit 20 is transported to the construction site.

[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 embodiment, the intermediate ceiling beam unit 31 having the support beam 33 and the intermediate ceiling beam 34 is used as the ceiling beam structure of the intermediate structure portion X3 on the first floor ceiling surface and the second floor ceiling surface. It may be changed. In this case, the intermediate ceiling beam 34 as a wall fixing horizontal member provided between the pair of support beams 33 does not have to be the same channel steel as the ceiling large beam 22 of the building unit 20 and is more rigid than that. You may comprise using a low steel material, for example, a lightweight shape steel. In short, the intermediate ceiling beam 34 is not intended to compensate for the structural strength of the building 10, but is provided mainly for the purpose of fixing the outer wall panel, and may be any wall member that can fix the wall member in the intermediate structure portion. .

  The intermediate ceiling beam 34 may be used as a horizontal member for fixing the ceiling in addition to being used as a horizontal member for fixing the wall. In this case, for example, a field edge is fixed to the intermediate ceiling beam 34 and a ceiling surface material is fixed by the field edge.

  Further, the support beam 33 can also be composed of other than the grooved steel. For example, you may be comprised with the H-section steel and the square steel.

  -The structure which does not provide the intermediate | middle ceiling beam 34 between a pair of support beams 33 may be sufficient. That is, the configuration shown in FIG. In FIG. 15, the support beam 33 is provided in a cantilever state on the unit ceiling joint 21 b as in FIG. 3, but the intermediate ceiling beam 34 is not provided. In this case, the outer wall member is naturally installed at a portion corresponding to the outer surface portion of the building 10, but the structure and the mounting structure of the outer wall member itself may be different from those of the normal building unit 20. In addition, the structure by which the floor frame 32 is mounted and fixed on the support beam 33 in the second floor part is the same as that of the said embodiment.

  In a portion where it is not necessary to attach the wall member, the wall fixing horizontal member is unnecessary, and the intermediate ceiling beam 34 is not essential even in that sense. In short, as the ceiling beam of the intermediate structure portion X3, a configuration in which a portion where the intermediate ceiling beam 34 is provided and a portion where the intermediate ceiling beam 34 is not provided may be mixed.

  In the above embodiment, the cantilever (support beam 33) as a support member is connected to the ceiling port 21b of the building unit 20, but this may be changed. For example, the floor unit 21c of the building unit 20 is provided with a cantilever beam. Alternatively, a cantilever is provided on the ceiling beam 22 or floor beam 23 of the building unit 20.

  Furthermore, it is good also as a structure which provides a cantilever in the column main body 21a (namely, intermediate part of the column 21) of the building unit 20. FIG. In this case, the skip floor can be formed in a state where the intermediate structure portion X3 is supported by the cantilever.

  In the above embodiment, the beam connection bracket 41 is attached to the ceiling joint 21b of the building unit 20 and the support beam 33 is fixed to the beam connection bracket 41. The structure which fixes the support beam 33 to the ceiling joint 21b directly without using 41 may be sufficient.

  -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. In the case of a one-story building, the structure of the back of the hut or the roof portion as the upper structure may be supported by the cantilever as the support member.

  DESCRIPTION OF SYMBOLS 10 ... Building, 12 ... Building body, 20 ... Building unit, 21 ... Pillar, 21b ... Ceiling joint, 21c ... Floor joint, 22 ... Ceiling girder, 23 ... Floor girder, 29 ... Docking plate (unit connection plate), 31 ... Intermediate ceiling beam unit, 32 ... Floor frame, 33 ... Support beam (support member), 34 ... Intermediate ceiling beam (horizontal material for fixing the wall), 36 ... Column-less joint (frame joint), 36b ... Bottom plate Part (bottom plate part), 37 ... floor frame large beam, 41 ... beam connection bracket (connection metal fitting), 45 ... end plate (capital plate part) 56 ... base plate (support plate part), 65 ... end plate (column base plate part) ), 76 ... horizontal brace, DL ... docking line (unit boundary line), X1, X2 ... unit structure, X3 ... intermediate structure.

Claims (6)

A plurality of building units having a plurality of unit columns and unit beams connected to the unit columns are provided, and the building units are separated from each other. It is a building where intermediate structures with different configurations are provided,
In the building unit arranged oppositely, the unit column or the unit beam is provided with a support member extending in the direction of the intermediate portion, and the upper member is supported by the support member on the upper side. And having a configuration
The support member is provided on a joint surface opposite to the unit ceiling beam in a ceiling joint provided on the unit column, and is at the same height as a stigma plate portion provided on an upper end portion of the ceiling joint. And a support plate portion for mounting and supporting the upper structure is fixed to the building. The upper floor building unit is placed on the lower floor building unit, and the ceiling joint of the lower floor building unit and the floor joint of the upper floor building unit are connected via a unit connecting plate. A multi-storey building
As the upper structure, comprising a floor frame having a plurality of floor frame girder and a frame joint connecting them,
The frame joint is provided with a bottom plate portion having the same form as a column base plate portion provided at a lower end portion of a floor joint of the building unit,
The floor frame is disposed at a position where the support plate portion of the support member and the bottom plate portion of the frame joint are vertically positioned, and the support plate portion and the bottom plate portion are connected via the unit connection plate. The building according to claim 1 . In the unit pillar or the unit beam, a connecting metal fitting extending to the outside of the unit and having a protruding height that does not exceed the unit boundary line that becomes a boundary line when adjacent building units are joined to each other in the unit manufacturing factory. Fixed,
The support member, the building according to claim 1 or 2 via the connecting fitting is connected to the unit column or the unit girder. In the building units arranged opposite to each other, the unit column of each building unit is provided with a cantilever as the support member in a direction extending from one building unit to the other building unit,
The building according to any one of claims 1 to 3 , wherein the upper structure is installed in a state of straddling each cantilever. Between oppositely arranged the cantilever respectively connected to the unit columns of the building unit are it is in claim 4 in which the wall fixing horizontal members for fixing the wall member in the intermediate structure is connected The listed building. The ceiling surface of the sandwiched ceiling girders of each building unit arranged opposite the intermediate structure, according to any one of claims 1 to 5 ceiling brace is provided bridging their ceiling girder building.

Images