JP2016156194A - Prefabricated building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a prefabricated building, which is assembled by joining plural units at the site previously manufactured at a factory, capable of solving a problem of beams piled up on each other when unitizing into a square shape while satisfying limitations in height and weight for transporting the unit.SOLUTION: A building 1 is built by: combining a post and floor unit 2 which includes four or more corner post members 21 which are shorter in length than the length of posts for one layer, which are disposed parallel in a span direction and a ridge direction, and a floor member 22 which is joined to any part of the corner post members 21 in an axial direction and supported across all of the corner post members 21, and a post unit 3 which includes four or more intermediate part post members 31 and which are shorter in length than the length of posts for one layer and are connected to the corner post members 21 of the post and floor unit 2; and joining each of the corner post members 21 and each of the intermediate post members 31 in the axial direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an assembly-type building assembled by joining a plurality of units manufactured in a factory on site.

  In the method of building a building by joining a plurality of units made of frame components such as columns and beams manufactured at the factory site, the trailer used to carry the manufactured unit to the site is used. Since the size and mass of the unit are restricted by the restrictions on the transportation height and mass imposed by the Road Traffic Law, the form of the unit is necessarily limited.

  Specifically, because the overall height of the unit is limited due to dimensional restrictions, it is not possible to have a unit with the height of multiple layers (multiple floors) of a building. It is necessary to form in a shape that suppresses the following (refer to Patent Document 1) or to transport the unit in a form that is divided into linear components such as columns and beams (see Patent Document 2). When the unit is suppressed to a height of one layer or less, it is advantageous to form the unit in a rectangular parallelepiped shape from a column and a beam in two directions in order to increase the efficiency of completion of the building by joining the unit on the site ( Patent Document 1).

  For example, if the unit is manufactured at the height of one layer of the building (Patent Document 1), the floor height of the building is limited to the height of the unit, and the length of the pillars constituting the unit is limited. . The length of the main frame components such as columns and beams that constitute the unit is also limited by the limitation on mass. The limitation on mass also imposes a restriction that when the unit is formed in a box shape, it is impossible to attach a wall material, a floor slab, or a face material such as an exterior material to the unit.

  In this way, the height of the unit or the length of the frame components can be restricted, so that the height and length of multiple layers cannot be given to the frame components of the unit. As a result, a light-weight material with inferior vibration performance and sound insulation performance is required. For example, when a floor slab is incorporated in the unit in advance, a precast concrete plate (PC version) with excellent sound insulation cannot be used, and a lightweight ALC version with inferior sound insulation characteristics compared to the PC version must be used. There may not be.

JP-A-10-131297 (Claim 1, paragraphs 0013 to 0024, FIGS. 1 to 4) JP 2000-352116 A (Claim 1, paragraphs 0016 to 0030, FIGS. 1 to 6)

  In Patent Document 1, the unit constituting the building is formed in three different shapes with different heights (column lengths), and the unit with the intermediate height is matched with the transportable height, The lowest height unit can be transported in a box shape. However, since the height of the highest unit exceeds the transportable height, it is necessary to divide the pillar into two parts (paragraph 0019), and all types of units are assembled in a box shape in advance. It cannot be transported by.

  In Patent Document 1, since the unit having the highest height must be transported in a state where the pillar is divided into two in the axial direction, the pillar divided in a long dimension is likely to vibrate during transportation. In order to secure the inside stability, it may be necessary to install a temporary member for preventing vibration of the column between adjacent columns. Temporary members for ensuring the stability of the unit during transportation may be necessary even when the length of the unit in the direction of the direction of the unit becomes large and twisting is likely to occur during transportation.

  Further, in Patent Document 1, the unit is assembled in a box shape from four columns paralleled in two directions and a beam connecting the legs and heads of the columns in two directions. When building a multi-layered building, the upper beam of the lower unit overlaps the lower beam of the upper unit, resulting in a double structure of beams. For this reason, the beam formation of the completed building is increased, a wasteful space is created in the middle part of the upper and lower beams, and the structure is established in units of the upper and lower units, so that the entire building There are inconveniences such as an excessive amount of components and the amount of steel used, resulting in high costs.

  In Patent Document 2, the box-shaped unit is transported in the state of being divided into component units, thereby eliminating the restrictions on the height and mass when assembled in a box shape, and eliminating the overlap of beams in the case of a box shape. However, as a result of dividing the box-shaped unit into component units, the number of on-site assembly operations increases, and the advantages of producing the unit in the factory are not fully utilized.

  The present invention proposes an assembly-type building that eliminates the problem of overlapping beams when unitized into a box shape while taking advantage of the factory production of the unit.

  The assembly type building of the invention according to claim 1 is provided with four or more end column members having a length shorter than the length of one layer of columns in parallel in the span direction and the row direction. A column / floor unit having a floor member that is supported by being joined to any part of the end column member in the axial direction across the end column member, and each end column of the column / floor unit. The column unit is composed of a combination of column units connected to a member and having four or more intermediate column members having a length shorter than the length of one column of columns, and each column unit and column unit of the column / floor unit. Each intermediate part column member is constructed by being joined in the axial direction.

  “Four or more end column members juxtaposed in the span direction and the row direction” means that the end column members 21 are arranged at least at four corners on the plane of the column / floor unit 2 as shown in FIG. Of these, two or more end column members 21 and 21 are arranged in parallel in the span direction, and two or more end column members 21 and 21 are arranged in the column direction. “4 or more” means that the end column members 21 are arranged at the four corner positions on the plane of the column / floor unit 2 and one or more at the middle portions in each direction in addition to the four corner positions. Say that there is a case.

  The intermediate column member 31 of the column unit 3 is continuous as a column by being joined to the end portion of the end column member 21 of the column / floor unit 2 adjacent in the height direction (the axial direction of the intermediate column member 31). Therefore, the number of intermediate column members 31 of the column unit 3 is equal to the number of end column members 21 of the column / floor unit 2. However, since the column unit 3 is composed of four or more intermediate column members 31 that are separated from each other, the intermediate column members 31 are not necessarily united in an assembled state with a distance from each other. In addition, the four or more intermediate column members 31 are independent from each other or bundled during transportation.

  “End column member” means a column member including at least one of a column base and a column head in each layer because the floor member 22 is joined to the column member constituting the column / floor unit 2. The “intermediate column member” means a column member arranged in a section from the column base to the column head. “Any axial portion” to which the column / floor unit is joined refers to a section from the axial leg portion to the head portion of the end column member itself.

  The length of the end column member 21 of the column / floor unit 2 is shorter than the length of one column of the building, and is joined to one intermediate column member 31 constituting the column unit 3 in the axial direction. For example, it becomes the length of a column for one layer. Basically, one intermediate column member 31 is joined to one end column member 21 to form a column for one layer. However, this is not always necessary, and one end column member 21 is not necessarily required. Two or more intermediate column members 31 may be joined together to form a column for one layer.

  As shown in FIGS. 1 and 2, the assembly-type building 1 is constructed from a combination of a column / floor unit 2 and a column unit 3. The length of the column member 31 is not necessarily one type, such as a constant length, and the column / floor unit 2 has a different length of the end column member 21 or the end column member 21. A plurality of types of pillar / floor units 2 with different positions where the floor member 22 is joined may be used (prepared). As the column unit 3, a plurality of types of column units 3 having different lengths of the intermediate column member 31 may be used. The column members 21 and 31 and the later-described beams 22a and 22b, which are the structural members of the column / floor unit 2 and the column unit 3, are mainly made of steel frames or precast concrete, but these structural types are not limited. It may be a composite structure or a wooden structure. The beam 22a indicates a beam in the span direction, and the beam 22b indicates a beam in the column direction.

  The column unit 3 is mainly composed of four or more intermediate column members 31 having a length shorter than the length of one column, and the length of the end column member 21 of the column / floor unit 2 is also equal to that of one column. Since it is shorter than the length, at least one pillar / floor unit 2 and one pillar unit 3 are required to complete the assembly-type building 1. The assembly-type building 1 means that the building is assembled from the pillar / floor unit 2 and the pillar unit 3 on the site and completed. The column unit 3 is basically composed of only the intermediate column member 31. For example, when the building is a steel structure, a fireproof covering material, a finishing material, equipment, etc. for covering the intermediate column member 31 are attached. There is also.

  “Established from a combination of a pillar / floor unit and a pillar unit” in claim 1 means that the assembly-type building 1 is composed only of a combination of at least one pillar / floor unit 2 and one pillar unit 3 in the height direction. When it is configured, it means that two or more of the pillar / floor unit 2 and the pillar unit 3 may be combined. The plurality of pillar / floor units 2 and the plurality of pillar units 3 may be combined in the horizontal direction as shown in FIG. Since the pillar / floor unit 2 has the form in which the end pillar members 21 are arranged at least at the four corners, when combined in the horizontal direction, the pillar / floor units 2, 2 adjacent to each other in the horizontal direction are the respective end pillar members 21. , 21 are joined together.

  Since the column / floor unit 2 and the column unit 3 constitute the assembly-type building 1 by joining the end column member 21 and the intermediate column member 31 in the axial direction, the end column member 21 and the intermediate column The arrangement position on the plane of the member 31 is the same, and the plane area of the space formed by the column / floor unit 2 and the plane area of the space formed by the column unit 3 are substantially the same. “Substantially” means a region surrounded by the center lines of the end column members 21 at the four corners of the column / floor unit 2 and a region surrounded by the center lines of the middle column members 31 at the four corners of the column unit 3. Means the same area.

  The axial joining position of the floor member 22 to the end column member 21 depends on the design of the building, that is, the length of the middle column member 31 of the column unit 3 combined on the upper side or the lower side of the column / floor unit 2. Depending on the height, the floor height of the completed building is arranged on the upper layer side with at least one column unit 3 from the top level of the floor member 22 of the column / floor unit 2 arranged on the lower layer side. It becomes the distance to the top level of the floor member 22 of the pillar / floor unit 2 to be used.

  The floor member 22 mainly refers to the floor slab 22c. In order to provide the form maintaining ability (rigidity) during transportation as the pillar / floor unit 2, the floor member 22 includes at least a span-direction beam 22a and a beam in the row direction. 22b and a floor slab 22c as a part of the face material. However, the floor slab 22c of the floor member 22 does not necessarily have an area covering the entire region including the four end column members 21 as shown in FIG. In order to achieve this, as shown in FIGS. 3A and 3B, a part of the entire area may be open and may be missing.

  As described above, the end column member 21 of the column / floor unit 2 and the intermediate column member 31 of the column unit 3 are both shorter than the column length of one layer of the building. Even when the length is equal to or exceeds the transport height limit, the height of the pillar / floor unit 2 and the pillar unit 3 produced in the factory can be kept within the transport height limit.

  The column / floor unit 2 is composed of four or more end column members 21 and a floor member 22 including beams 22a and 22b, and is three-dimensionally assembled from main frame components including columns and beams, Since the height of all pillar / floor unit 2 and all pillar unit 3 is kept within the transport height limit, all units can be transported to the site as they are produced on site, and assembled on site, As in Patent Document 1, it is not necessary to divide the column of the unit during transportation.

  Since the column unit 3 is composed of four or more intermediate column members 31, each intermediate column member 31 is independent at the time of transportation. Therefore, when transporting in combination with the column / floor unit 2, FIG. As shown in (b), it can be placed on the floor member 22 of the pillar / floor unit 2 in a laid state. Therefore, for example, when one layer of a building is composed of one pillar / floor unit 2 and one pillar unit 3, it is possible to transport a set of units for one layer at a time.

  In the peripheral part of the floor member 22 of the column / floor unit 2 which is a unit in which the horizontal member is integrated with the column member, the span direction beam 22a and the beam in the column direction are provided for the purpose of securing rigidity during transportation as described above. The beam 22 a and the beam 22 b are built in the floor member 22. The pillar / floor unit 2 constitutes the assembly-type building 1 by joining the pillar unit 3 adjacent to at least one of the lower layer side and the upper layer side. The pillar / floor unit 2 is adjacent to the pillar / floor unit 2 in the height direction. Since the unit 3 mainly includes only the intermediate column member 31, the beam 22 a and the beam 22 b or the floor member 22 do not overlap vertically due to the connection between the column / floor unit 2 and the column unit 3. The double structure of the beam 1 is avoided.

  Further, the column / floor unit 2 has a configuration in which a floor member 22 straddling the entire end column member 21 is joined to any portion from the axial leg portion to the head portion of four or more end column members 21. Thus, for example, when the floor member 22 is joined to the intermediate portion in the axial direction excluding the leg portion and the head portion of the end column member 21, the column / floor unit 2 has an H shape on the elevation surface. The column member having a length about half that of the end column member 21 is joined to the top and bottom of the floor member 22.

  As a result, the floor member 22 is joined to the head or leg of the end column member 21, and the end column member is more than the case where the entire length of the end column member 21 protrudes from the top or bottom end of the floor member 22. The overhang length of the 21 from the floor member 22 is shortened, and the end column member 21 is less likely to vibrate during transportation. In addition, since the length of the end column member 21 itself is shorter than the length of the column for one layer, the stability to the deformation of the end column member 21 is increased. Therefore, it is not necessary to install a temporary member for preventing vibration. In addition, the floor member 22 is a face material in which at least a part of the floor slab 22c is integrated with the frame of the beams 22a and 22b in two directions, unlike a frame composed of only four-round beams. For this reason, it is also less necessary to add a temporary member for ensuring stability against torsion during transportation.

  The column / floor unit 2 is manufactured by joining the floor member 22 having the beams 22a and 22b to the four or more end column members 21, but the floor finishing material or the ceiling finishing material is within the mass limit. It is also possible to integrate various pipes, equipment and the like, so that the number of operations at the site can be reduced by unitization and the construction period can be shortened.

  The assembly-type building 1 is constructed by a combination of at least one (one set) pillar / floor unit 2 and at least one (one set) pillar unit 3, but a plurality of pillar / floor units 2 are used. In this case, in the column / floor unit 2 arranged at the top of the building, the top of the column / floor unit 2 is arranged so that the head of the end column member 21 does not protrude beyond the top end of the floor member 22 more than necessary. The floor member 22 is joined to the head of the end column member 21 or to a position near the head (claim 2). The “position closer to the head” refers to a section closer to the head than the intermediate portion in the axial direction of the end column member 21.

  In this case, the length of the end column member 21 of the uppermost column / floor unit 2 is required because there is little or no protrusion of the top of the end column member 21 from the top end of the floor member 22. Since it can be set to a large size, the height and mass of the pillar / floor unit 2 can be suppressed. In addition, since much mass of the pillar / floor unit 2 can be saved, it becomes possible to add many exterior materials and equipment to the pillar / floor unit 2, thereby further reducing the number of work on site and improving work efficiency. Further improvement is also achieved.

  Similarly, when a plurality of pillar / floor units 2 are used in the assembly-type building 1, the leg portions of the end pillar members 21 are arranged from the lower ends of the floor members 22 in the pillar / floor unit 2 arranged at the lowermost part of the building. The floor member 22 of the lowermost column / floor unit 2 is joined to the leg portion of the end column member 21 or at a position close to the leg portion so as not to protrude downward more than necessary. The “position closer to the leg” refers to a section closer to the leg than the intermediate portion in the axial direction of the end column member 21. Also in this case, the length of the end column member 21 of the lowermost column / floor unit 1 can be set to a necessary size, and the height and mass of the column / floor unit 1 can be suppressed. The number of operations can be reduced and the work efficiency can be improved.

  Since both the end column member of the column / floor unit and the intermediate column member of the column unit are shorter than the column length of one layer, for example, even when the column length of one layer is the transport height limit The height of pillar / floor units and pillar units produced in the factory can be kept within the transport height limit. In particular, columns and floor units are three-dimensionally assembled from the main structural components including columns and beams, but the height of all columns / floor units and all column units can be kept within the transport height limit. This unit can also be transported to the site without the need for division while still being manufactured in the factory.

  In addition, an assembly-type building is constructed by joining an end column member of a column / floor unit and an intermediate column member composed of an intermediate column member. Since the beams in two directions or the floor members do not overlap, the double structure of the beams is avoided.

It is the elevation which showed the point of the production example and the combination of the three pillar / floor units and the two pillar units constituting the two-layer assembly type building. FIG. 2 is a perspective view showing a state in which a plurality of pillar / floor units and pillar units shown in FIG. 1 are sequentially stacked and assembled from a lower layer side. (A) is an elevation view showing a manufacturing example of a column / floor unit arranged at the top of FIG. 1 in which a beam and a small beam in two directions and a part of a floor member are integrated with an end column member ( (Perspective view) and (b) are elevation views showing a state in which the end column member of the column / floor unit and the beam in two directions shown in (a) are provided with fireproof coating when they are steel frames. (A) is an elevation view showing a state in which a ceiling base material and a descending wall are attached to the pillar / floor unit shown in FIG. 3- (b), and (b) is a ceiling on the pillar / floor unit shown in (a). (C) shows a state where the lighting equipment is stored in the pillar / floor unit shown in (b) and the ceiling board is installed under the ceiling base material. FIG. (A) is an overhead view (perspective view) showing a top view of the pillar / floor unit shown in FIG. 4- (c), and (b) is on the floor member of the pillar / floor unit shown in (a). A bird's-eye view showing a state in which the intermediate column members constituting the column unit are laid down, (c) is a column unit shown in (b) on which the column / floor unit shown in (a) is installed in the field. It is the bird's-eye view which showed a mode that the intermediate | middle part column member of this was joined, and the remaining floor slab of the column and floor unit was installed. (A) is a perspective view showing a state when the pillar / floor unit and the pillar unit shown in FIG. 5- (c) are loaded on a trailer, and (b) is the pillar unit shown in (a) on the pillar / floor unit. It is the perspective view which showed a mode that it laid down and installed. It is the perspective view which showed a mode that the column unit was suspended using the crane on the column / floor unit shown in FIG. It is the perspective view which showed the example of the structure of the building in the case where a pillar / floor unit and a pillar unit are combined in a horizontal direction, and a building is completed, and a mode that the outer wall material was stuck to each unit.

  1 and FIG. 2 are parallel to each direction of the span direction and the row direction, and four or more end column members 21 having a length shorter than the length of one column of the building and four or more end columns. Four columns / floor unit 2 having a floor member 22 supported across the member 21 and each end column member 21 of the column / floor unit 2 and having a length shorter than the length of one column. The structural example of the assembly-type building (henceforth building) 1 by the combination of the column unit 3 which has the above intermediate | middle part column member 31 is shown. The floor member 22 is joined to any portion (section from the leg portion to the head portion) in the axial direction of each end column member 21. The building 1 is constructed by joining each end column member 21 of the column / floor unit 2 and each intermediate column member 31 of the column unit 3 in the axial direction.

  1 and 2 show a configuration example of a building 1 having a height of two layers from two pillar units 3 sandwiched between three pillar / floor units 2 and upper and lower pillar / floor units 2 and 2. In FIG. 1, the column unit 3 is stacked and joined on the bottom column / floor unit 2, and the intermediate column / floor unit 2 is stacked and joined on the bottom column / floor unit 2. The uppermost column / floor unit 2 is shown stacked on top, but the building 1 is constructed by a combination of at least one column unit 3 and one column / floor unit 2.

  As shown in FIGS. 1 and 2, the length of the end column member 21 of each column / floor unit 2 and the connection position of the floor member 22 to the end column member 21 are not necessarily the same. It may be the same when different for every two. The column / floor unit 2 and the column unit 3 may be combined and joined in the horizontal direction, and the planar shape of the building 1 can be freely determined by the combination in the horizontal direction.

  When the pillar / floor unit 2 and the pillar unit 3 are combined in the horizontal direction, the pillar / floor unit 2, 2 and the pillar units 3, 3 adjacent to each other in the horizontal direction are arranged at the respective corners as shown in FIG. The end column members 21 and 21 and the intermediate column members 31 and 31 are combined in a parallel state and joined together. In this case, as shown in FIG. 1, at least one of the column members 21 and 31 of the units 2 and 3 is horizontally adjacent to the end column member 21 of the column / floor unit 2 or the column unit. A bracket 21b and the like for joining with the intermediate column member 31 of 3 are projected.

  The column / floor unit 2 is constructed in a three-dimensional manner by being composed of four or more end column members 21 and a floor member 22 that connects all end column members 21, but the column unit 3 has four or more intermediate members. Since it is composed of the column member 31 and does not have a floor member for connecting the intermediate column member 31, it is not assembled three-dimensionally like the column / floor unit 2, and FIG. As shown in 6- (b), the four or more intermediate column members 31 are independent or bundled in units of a plurality.

  At the site where the building 1 is constructed, as shown in FIG. 1, the lower end of the end column member 21 of the column / floor unit 2 arranged at the bottom of the building 1 or the lower end of the intermediate column member 31 of the column unit 3 is It is placed on the top end of the foundation 4 as the lower structure of the building 1 and bonded (fixed). In FIG. 1, the top of the foundation 4 is flat over the entire plane of the building 1, but the foundation 4 is like an independent foundation in order to join the pillar member to the part that receives the pillar member of any unit. It may be partially arranged. The column unit 3 or the column / floor unit 2 is placed on the column / floor unit 2 or the column unit 3 having the column member fixed to the foundation 4, and the respective column members 21 and 31 are joined to each other. .

  A joining member such as a base plate for joining to the foundation 4 as shown in FIGS. 1 and 2 at the lower end of the end column member 21 mounted on the top end of the foundation 4 or the lower end of the intermediate column member 31. 21a and 31a are joined in advance. The joining members 21 a and 31 a are joined in advance to the upper and lower end portions of the end column member 21 and the upper and lower end portions of the intermediate column member 31 to be joined to each other.

  The smallest scale building 1 is mounted, for example, on a foundation 4 and is completed from a joined column unit 3 and a joined column / floor unit 2. In FIGS. 1 and 2, the height of two layers is increased. In order to complete the building 1 having the lowermost pillar / floor unit 2 on the foundation 4, two (two sets) of pillar units 3 and two (two sets) of pillar / floor units are placed thereon. 2 are alternately installed and joined to each other. 1 and 2, the column / floor unit 2 is arranged at the lowermost part of the building 1 and the column / floor unit 2 arranged at the uppermost part and the column / floor unit arranged at the middle part. 2, three types of pillar / floor units 2 having different forms are prepared, but it is not always necessary to change the form of the lowermost part, the middle part, and the uppermost part.

  “The form of the column / floor unit 2 is different” means that the length of the end column member 21 of each column / floor unit 2 is different from the joining position of the floor member 22 to the end column member 21. However, the protruding length of the end column member 21 from the top end of the floor member 22 and the protruding length of the end column member 21 from the lower end of the floor member 22 may be different for each of the plurality of columns / floor units 2. Say there is.

  When three types of pillar / floor unit 2 are prepared, the floor member 22 of the pillar / floor unit 2 arranged at the bottom of the building 1 suppresses the distance between the foundation 4 and increases the height of each floor. In order to earn, it is joined to the leg part of the end column member 21 or at a position near the leg part. For the same purpose, the floor member 22 of the pillar / floor unit 2 arranged at the top of the building 1 is joined to the head of the end pillar member 21 or at a position near the head, and the pillar / floor in the middle part. The distance from the floor member 22 of the unit 2 to the floor member 22 of the uppermost pillar / floor unit 2 is large.

  The column / floor unit 2 spans at least four end column members 21 arranged at at least the corners on the plane and all the end column members 21, and any part of the end column members 21 in the axial direction. It is comprised from the floor member 22 joined to. The floor member 22 includes at least a beam 22a laid between the end column members 21 and 21 arranged in parallel in the span direction of the column / floor unit 2 and a beam laid between the end column members 21 and 21 arranged in parallel in the row direction. 22b and a floor slab 22c that is supported by the beams 22a and 22b in these two directions and covers at least a part of the floor surface defined by the all-end column member 21. The floor member 22 is joined to the end column member 21 at both ends of the beam 22a and both ends of the beam 22b.

  The floor slab 22c indicates a floor portion that is previously incorporated in the pillar / floor unit 2 as a part of the floor member 22, and has a case where the floor covering 22c has an area covering the entire plane of the pillar / floor unit 2 as shown in FIG. As shown, it may have an area that covers only a portion of the entire plane. The floor slab, which is a unit constituting the floor slab 22c, is manufactured with a certain width and length, but the floor slab 22c is composed of a combination of a plurality of floor slabs. In the case of covering only the plane, the floorboard to be arranged in the remaining area is laid on the site. A precast concrete slab is mainly used for the floor slab 22 (floor board) from the standpoint of ensuring sound insulation performance and the like, but the material of the floor slab 22 is freely selected according to the use of the building 1.

  FIG. 3A shows the end column member 21, two-way beams 22 a and 22 b, a floor slab 22 c covering a part of the plane of the column / floor unit 2, and beams 22 b and 22 b facing in the span direction. The structural example of the pillar and floor unit 2 assembled from the small beam 22d constructed in between is shown. The drawing shows an example in which the end column member 21, the beam 22a, and the girder 22b are steel frames, but there may be a structure other than a steel frame. (B) shows the structural example at the time of arrange | positioning the fireproof covering materials 21c and 22e to the circumference | surroundings of the edge part column member 21 of the pillar and floor unit 2 shown to (a), and the circumference | surroundings of the beams 22a and 22b. As shown in FIG. 2, the fireproof covering material 31 b is also arranged around the intermediate column member 31 of the column unit 3.

  4A, the ceiling base material 22f is arranged under the floor slab 22c of the pillar / floor unit 2 shown in FIG. 3-B, and the ceiling base material 22f is connected to the end column member 21 and the floor member 22. An example will be described in which at least one of them is supported and a descending wall (hanging wall) 22g is supported by at least one of the end column member 21 and the floor member 22. (B) is an example of a case where a ceiling pipe 22h and an equipment 22i such as an air conditioner are housed between the floor slab 22c and the ceiling base material 22f shown in (a), and (c) is (a) or An example in which the ceiling board 22j is attached to the ceiling base material 22f shown in (b) and the lighting equipment 22k and the equipment 22i are installed between the floor slab 22c and the ceiling board 22j is shown.

  Since the floor member 22 is joined to the section from the axial leg portion to the head portion of the end column member 21 as described above, the end column is provided below the bottom surface of the floor member 22 as shown in FIG. The lower portion of the member 21 is in a protruding state. As a result, even if the ceiling piping 22h, the equipment 22i, etc. are stored under the floor slab 22c, they can be stored above the lower end of the end column member 21, so that the column / floor unit 2 When transporting 2 and when bringing the pillar / floor unit 2 down to the ground temporarily during delivery to the site, it is not necessary to damage the piping 22h in the ceiling, and it is not necessary to use a dedicated stand. -There is an advantage that the floor unit 2 can be made independent.

  FIG. 5- (a) shows a state where one of the pillar / floor units 2 of FIGS. 4- (a) to (c) is looked down from above. FIG. 5B is a diagram illustrating a configuration in which the four intermediate column members 31 constituting the column unit 3 are dispersed on the floor slab 22c on both sides of the column / floor unit 2 shown in FIG. Shows how it was done. (C) Stands the intermediate column member 31 of the column unit 3 on the end column member 21 of the column / floor unit 2, and joins the lower end portion of the intermediate column member 31 to the upper end portion of the end column member 21. In addition, the state when the remaining floor slabs 22c are laid between the floor slabs 22c and 22c on both sides is shown. Fig. 5- (b) shows an example of combination of both units 2 and 3 when the column / floor unit 2 and the column unit 3 are transported together, and Fig. 5 (c) shows the case where both units 2 and 3 are assembled on site. Indicates the situation.

  Whether the column / floor unit 2 is assembled in any of the examples shown in FIGS. 3- (a) to 4- (c) depends mainly on the transportation height allowed for the column / floor unit 2 and It is determined from the relationship between the mass limit and workability on site. In view of work efficiency at the site, in addition to the end column member 21 and the floor member 22, it is advantageous to attach more structural members such as small beams 22d, non-structural members such as base materials, or equipment. However, if the number of members to be attached increases, the mass limit will be exceeded, so it is reasonable to attach any member or equipment in advance in the field work. Members to be attached to the pillar / floor unit 2 are determined from the plan.

  6 (a) shows the pillar / floor unit 2 shown in FIGS. 5- (a) and (b) placed on the trailer 5, and the pillar unit 3 is placed on each end pillar member 21 of the pillar / floor unit 2. FIG. (B) shows a state in which each intermediate column member 31 of the column unit 3 shown in (a) is laid and transported. FIG. 7 shows a state where the column unit 3 is suspended on the column / floor unit 2 placed on the trailer 5 by using a crane, or the column / floor unit 2 and the column unit 3 are simultaneously installed on the construction site of the building 1. FIG. 6A shows a state immediately before the suspension.

  The frame of the building 1 is constructed by repeating the installation of the column / floor unit 2 or the column unit 3 on the foundation 4 and the installation and joining of the column unit 3 or the column / floor unit 2 on each of them. In parallel with the joining of the pillar / floor unit 2 and the pillar unit 3, or after the joining of all the pillar / floor unit 2 and all the pillar units 3 is completed, as shown in FIG. Is done.

  FIG. 8 shows an example of the structure of the building 1 when the column / floor units 2 and 2 and the column units 3 and 3 are combined and joined together in the horizontal direction. The column / floor units 2 and 2 adjacent to each other in the horizontal direction are joined by, for example, as shown in FIG. 1, brackets 21 b and 21 b projecting from the end column members 21 are joined to each other by bolts or the like. When it is necessary to supplement the joining state of the adjacent end column members 21 and 21, the adjacent intermediate column members 31 and 31 are also joined in the same manner. In FIG. 8, the outer wall material 6 has a height extending from the upper end of the lower column / floor unit 2 to the upper end of the upper column / floor unit 2. It is divided into three pillar units and may be installed for each unit 2 or 3.

1 …… Assembly type building,
2 …… Pole / floor unit,
21 …… End column member, 21a …… Joint member, 21b …… Bracket, 21c …… Fireproof covering material,
22: Floor member, 22a: Span beam, 22b: Girder beam, 22c: Floor slab, 22d: Small beam, 22e: Fireproof covering material, 22f: Ceiling base material, 22g ... ... descending wall, 22h ... piping in ceiling, 22i ... equipment, 22j ... ceiling board, 22k ... lighting equipment,
3 …… Pillar unit,
31 ... Intermediate column member, 31a ... Joining member, 31b ... Fireproof coating,
4 ... foundation, 5 ... trailer, 6 ... exterior wall material.

Claims (3)

1.   Parallel to each direction of the span direction and the column direction, four or more end column members having a length shorter than the length of one column, and straddling the four or more end column members, each end column A column / floor unit having a floor member joined to and supported by any part in the axial direction of the member, and connected to each end column member of the column / floor unit, It consists of a combination of column units having four or more intermediate column members of short length, and each end column member of the column / floor unit and each intermediate column member of the column unit are joined in the axial direction. An assembly-type building that is constructed.
2.   The assembly type according to claim 1, wherein the floor member of the pillar / floor unit arranged at the uppermost part is joined to a head of the end pillar member or a position near the head. building.
3. 3. The floor member of the pillar / floor unit arranged at the lowermost part is joined to a leg part of the end pillar member or a position closer to the leg part. An assembly type building as described in 1.
   

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