JP2014227691A - Unit type building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain hanging-down of the ceiling of a column-omitted part in a unit type building of using a column-omitted type building unit.SOLUTION: In a building T, a building unit 10 having a temporary column is arranged in a plurality so that the mutual temporary columns are adjacent, and a continuous wide space is formed by forming a column-omitted part K by removing the temporary columns, and a reinforcement beam 40 is also arranged so as to cross the column-omitted part K in a predetermined direction in a plan view along a ceiling girder 16. The reinforcement beam 40 becomes a fixing part for respectively fixing both end part side positions in a longitudinal direction and a column-omitted part side position being its central part to the ceiling girder 16, and is fixed by first fixing means in an end part side fixing part, and is fixed by second fixing means in a column-omitted part K side fixing part. The second fixing means is provided with a position adjusting mechanism capable of adjusting a position in a vertical direction of a column-omitted part K side end part in the ceiling girder 16 extending along the reinforcement beam 40.

Description

  The present invention relates to a unit building constructed by a plurality of building units.

  Conventionally, in order to create a wide internal space, a column-type unit building called a wide span construction method has been proposed. In this column omitting type unit type building, since a column omitting unit in which some columns are omitted is used as a building unit, the strength of the ceiling portion is reduced in the column omitting portion composed of a plurality of column omitting units. For this reason, a technique has been proposed in which reinforcing beams are arranged between adjacent ceiling beams to compensate for the strength reduction of the ceiling portion, and the reinforcing beams are fixed to the ceiling beams (see, for example, Patent Document 1). .

JP-A-8-277580

  However, even in the reinforcing structure using the reinforcing beam as described above, the pillar omission part is subjected to its own weight, loads such as upper floors (including furniture) and roofs, etc. It will be difficult to maintain the floor-to-ceiling design dimensions (ceiling height). If the design dimensions from the floor to the ceiling are not maintained, the ceiling may become uneven or a fitting failure may occur. In this case, there is a concern that the reinforcing beam is bent due to the load applied to the reinforcing beam, and the ceiling is lowered due to the bending of the reinforcing beam.

  This invention is made | formed in view of the said situation, and makes it the main objective to suppress the ceiling fall of a column omission part in the unit type building using a column omission type building unit.

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

The first invention is
The building unit is composed of a plurality of building units (10) formed by connecting a ceiling beam, a floor beam, and a column. Including
A plurality of building units having the temporary pillars are arranged so that the temporary pillars are adjacent to each other, and a continuous wide space is formed by removing the temporary pillars and forming the pillar omitted portion (K), And the unit type building where the reinforcing beam (40) is arranged so as to cross the column omission part in a predetermined direction in plan view along the ceiling large beam,
The reinforcing beam is a fixed portion where the position on both end sides in the longitudinal direction and the position on the column omitted portion side in the center are fixed to the ceiling beam. The fixing portion on the end side is fixed by the first fixing means (41a, 51), and the fixing portion on the pillar omitted portion side is fixed by the second fixing means (41b, 61),
The second fixing means is provided with a position adjustment mechanism capable of adjusting a vertical position of an end portion on the column omitted portion side in the ceiling beam extending along the reinforcing beam.

  In a unit type building having a column omission part, it is possible to form a wide indoor space by omitting some of the columns, but the end of the column omission part side of the ceiling beam is lowered downward in the column omission part, There is concern that the ceiling height will be reduced. In this regard, in the above configuration, a position adjusting mechanism is provided in the second fixing means provided at the position on the column omitting portion side of the reinforcing beam, and the column is omitted in the large ceiling beam extending along the reinforcing beam by the position adjusting mechanism. The position in the vertical direction of the end on the side of the section (that is, the longitudinal direction of the ceiling beam) can be adjusted. As a result, when the end of the column omission part side of the ceiling beam is lowered downward, the end of the column omission part side can be lifted and the ceiling beam can be returned to the horizontal state with the reinforcing beam attached. . Alternatively, in anticipation that the end of the column omission part side of the ceiling beam falls downward, the end of the column omission part side can be lifted in advance with respect to the opposite end. As a result, it is possible to suppress the ceiling drop of the column omitted portion in the unit type building using the column omitted type building unit.

  According to a second aspect of the present invention, the second fixing means includes a protrusion (61) provided on the ceiling beam and protruding outward from the ceiling beam, and disposed on the reinforcing beam and above the protrusion. A fixed portion (41b) fixed to the protruding portion, and fixing the reinforcing beam to the ceiling beam by fixing the fixed portion to the protruding portion by a fixing member (63). A predetermined gap is formed in the vertical direction between the protruding portion and the fixed portion in a state where the reinforcing beam is fixed to the ceiling beam by the first fixing means. The gap is the position adjustment allowance (L1).

  In the above configuration, in a state where the reinforcing beam is fixed to the ceiling beam by the first fixing means, that is, in a state where the end side of the reinforcing beam is fixed, between the protruding portion of the second fixing means and the fixed portion. A predetermined gap is formed in the vertical direction. In this case, the gap functions as a position adjustment allowance for adjusting the vertical position of the end of the ceiling beam on the column omitted portion side. That is, by reducing or eliminating the gap between the protruding portion and the fixed portion, the end portion of the ceiling beam on the column omitted portion side is lifted, thereby realizing a desired position adjustment.

  According to a third aspect of the present invention, the second fixing means maintains the state when the gap is formed between the protruding portion and the fixed portion, and the gap can be adjusted during position adjustment. A gap adjusting member (62, 71, 72) is provided.

  In the above configuration, a state in which a gap is formed between the protruding portion and the fixed portion is maintained by the gap adjusting member provided in the second fixing means. Further, during the position adjustment, the gap can be adjusted by the gap adjusting member. Thereby, the direction of the longitudinal direction of a ceiling girder can be made into a desired state, and the state can be maintained.

  According to a fourth aspect of the present invention, a screw hole (64) penetrating vertically is formed in the fixed portion, and an adjustment bolt (62) as the gap adjusting member is screwed into the screw hole from above. The adjusting bolt is characterized in that a tip portion of the adjusting bolt can be brought into contact with an upper surface of the protruding portion, and the gap is formed by a portion protruding downward from the fixed portion.

  According to the said structure, adjustment of a clearance gap is possible by the screwing position of the adjustment volt | bolt, and the direction of the longitudinal direction of a ceiling beam can be adjusted easily.

  5th invention fixes the maximum protrusion dimension of the front end side of the said adjustment bolt in the state in which the said adjustment bolt was screwed with respect to the screw hole of the said to-be-fixed part, and the said 1st fixing means, In the state where the second fixing means is not fixed, a gap dimension formed between the protruding portion and the fixed portion is the same.

  In the above configuration, when the reinforcing beam is set to the ceiling girder in the state where the adjusting bolt is screwed into the screw hole of the fixed part to the innermost part, the tip of the adjusting bolt protrudes from the second fixing means. It abuts on the upper surface. In this case, it is not necessary to finely adjust the tip protruding dimension of the adjusting bolt at the initial setting of the reinforcing beam. And in order to make a clearance dimension small, what is necessary is just to make the protrusion dimension small from the maximum protrusion state of an adjustment bolt.

  According to a sixth aspect of the present invention, a through hole (65) penetrating vertically is formed in the fixed portion, and a screw hole (66) opening in the upper surface is formed in the protruding portion. The fixing bolt (63) is inserted from the through hole side and is screwed into the screw hole of the protruding portion, whereby the fixed portion is fixed to the protruding portion. And

  In the above configuration, the fixing bolt is provided in the direction extending in the vertical direction, and by fixing the fixing bolt, the fixed portion is fixed to the protruding portion, and the clearance dimension between the protruding portion and the fixed portion is adjusted. Is implemented. In this case, by using a fixing bolt as the fixing member, it is possible to realize a configuration that allows easy adjustment to the gap dimension.

  In the configuration having both the adjusting bolt (62) and the fixing bolt (63), the adjustment bolt can be rotated to separate the bolt tip from the upper surface of the protrusion, and according to the distance. The protruding portion can be pulled up with respect to the fixed portion by the rotation of the fixing bolt. Thereby, the direction of the longitudinal direction of a ceiling girder can be adjusted. In this case, both the adjustment bolt and the fixing bolt need only be rotated from above, and a configuration with good workability can be realized.

  According to a seventh aspect of the present invention, a through hole (65) penetrating vertically is formed in the fixed portion, and a screw hole (66) opening in the upper surface is formed in the projecting portion. The fixing bolt (63) is inserted from the through hole side and screwed into the screw hole of the protruding portion, so that the fixed portion is fixed to the protruding portion, and the protruding portion One or a plurality of spacer members (71) having a plate shape as the gap adjusting member are detachably provided on the fixing bolt in the gap between the portion and the fixed portion. .

  According to the above configuration, the gap can be adjusted by the number of spacer members attached, and the longitudinal direction of the ceiling beam can be easily adjusted.

  According to an eighth aspect of the present invention, the first fixing means is provided on the ceiling beam and protrudes outward from the ceiling beam to the outside of the unit, and provided on the reinforcing beam and above the first protrusion. And a first fixed portion (41a) fixed to the first protruding portion, and the first fixed portion is fixed to the first protruding portion by a fixing member (54). The reinforcing beam is fixed to the ceiling beam, and the second fixing means is provided on the ceiling beam and protrudes from the ceiling beam to the outside of the unit. A second fixed portion (41b) provided on the reinforcing beam and disposed above the second protruding portion and fixed to the second protruding portion; 2 Fix the fixed part with the fixing member (63) to the ceiling beam The reinforcing beam is fixed, and the height relative to the second protruding portion in the second fixing means is higher than the height position of the first fixed portion relative to the first protruding portion in the first fixing means. It is characterized in that the height position of the second fixed portion is larger.

  According to the above configuration, the first fixing means and the second fixing means have different height positions of the respective fixed parts with respect to the respective protruding parts. Due to the difference, the second fixing means differs from the second protruding part in the second fixing means. A predetermined gap is formed in the vertical direction between the second fixed portion. Thereby, the direction of the longitudinal direction of the ceiling beam can be adjusted.

  According to a ninth aspect of the present invention, the first fixing means is provided with a position adjusting mechanism capable of adjusting a vertical position of an end portion on the opposite side of the column omission portion in the ceiling beam extending along the reinforcing beam. It is characterized by being.

  In the above configuration, the position adjusting mechanism is provided in both the first fixing means and the second fixing means. In this case, after the building construction, the position adjustment can be carried out for both the front end portion of the ceiling beam on the column omitted portion side and the front end portion on the opposite side.

The perspective view which shows four building units which form the indoor space of a wide span. The perspective view which shows the structure of a building unit. The figure which shows the state which attached the reinforcement beam to the building unit. The figure which shows the structure of the fixing | fixed part of a 1st bracket. Sectional drawing which isolate | separates and shows a reinforcement beam from a ceiling large beam in the fixed part of a 1st bracket. The figure which shows the structure of the fixing | fixed part of a 2nd bracket. Sectional drawing which isolate | separates and shows a reinforcement beam from a ceiling large beam in the fixed part of a 2nd bracket. The side view which shows a part of reinforcement beam. The figure for demonstrating the height adjustment work of the ceiling large beam by a reinforcement beam. The figure which shows the ceiling large beam in which height adjustment by the reinforcement beam was performed. The figure which shows the structure of the fixing | fixed part of a 2nd bracket in another embodiment. The side view which shows a part of reinforcement beam in another embodiment. The figure which shows the structure of the 2nd fixing means in another embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In this embodiment, it is materialized in the unit type building constructed | assembled with the steel frame ramen unit construction method, and the unit type building is comprised using the some building unit. Each building unit is manufactured in advance at a factory and then transported to a construction site by a truck or the like. In this embodiment, in particular, a building is formed in which a wide indoor space called a wide span where a column is omitted is formed. FIG. 2 shows a configuration of a column omitting type building unit 10 used in the wide span construction method. . FIG. 2 shows the building unit 10 before construction of the building (state at the time of factory shipment).

  As shown in FIG. 2, the building unit 10 includes a ceiling frame 11 and a floor frame 12 each assembled in a rectangular frame shape, and three columns 13 and one temporary column 14 are interposed therebetween. Is configured to stand. The ceiling frame 11 includes ceiling joint portions 15 (15a, 15b) at four corners, and the longitudinal ends of the ceiling beams 16 and 17 having different lengths are connected to the ceiling joint portion 15 by welding. Yes. Similarly, the floor frame 12 includes floor joints 18 (18a, 18b) at four corners, and the longitudinal ends of the floor beams 19 and 20 having different lengths are welded to the floor joint 18 by welding. It is connected. Each part of the building unit 10 is made of a steel material, and the column 13 and the joints 15 and 18 are made of square tubular square steel (except for the joints 15b and 18b). The ceiling beams 16 and 17 and the floor beams 19 and 20 are made of grooved steel having a U-shaped cross section, and are installed so that the openings face each other, that is, the grooves are directed to the inside of the unit.

  In the ceiling frame 11 and the floor frame 12, the joint portions 15 and 18 have different configurations in the joint portions 15 a and 18 a to which the pillar 13 is connected and the joint portions 15 b and 18 b to which the temporary pillar 14 is connected. The former (joint portions 15a and 18a) is formed in a prismatic shape, whereas the latter (joint portions 15b and 18b) is formed in a substantially L shape in plan view. And the upper-lower-end part of the pillar 13 is connected by welding to the joint parts 15a and 18a arrange | positioned facing up and down. Further, the upper and lower end portions of the temporary column 14 are temporarily fixed to the joint portions 15b and 18b arranged to be opposed to each other by bolt joining which can be removed at the construction site. Thereby, the building unit 10 having a rectangular parallelepiped skeleton (frame) is configured.

  In the ceiling frame 11, a plurality of ceiling beams 21 extending in the wife direction are provided at predetermined intervals between the large ceiling beams 17 having long side portions (girder portions) facing each other. Further, in the floor frame 12, a plurality of floor beams 22 extending in the direction of the wife are provided at predetermined intervals between the large floor beams 20 having long side portions (girder portions) facing each other. Although illustration is omitted, the ceiling surface material is supported by the ceiling beam 21 and the floor material is supported by the floor beam 22.

  Further, the temporary column 14 is configured by providing unit joint portions 32 and 33 respectively joined to the ceiling joint portion 15b and the floor joint portion 18b of the building unit 10 at both ends of the column main body 31 as the main body portion. ing. The column main body 31 is made of, for example, square steel, and has a two-part structure in which an upper column portion 31a and a lower column portion 31b are connected.

  The upper column part 31a and the lower column part 31b are connected to each other by an intermediate connecting part 34. The intermediate connecting portion 34 is provided so as to partially overlap the upper and lower column portions 31a and 31b, and has a length adjusting function for adjusting the overall length (column length) of the temporary column 14. doing. As a configuration for adjusting the length of the intermediate connecting portion 34, for example, the lower end plate portion of the upper column portion 31a and the upper end plate portion of the lower column portion 31b are opposed to each other, and between the lower end plate portion and the upper end plate portion. Use an adjustment bolt. And the separation distance between the upper pillar part 31a and the lower pillar part 31b is changed by rotation of the adjustment bolt, and the structure which adjusts the column length of the temporary pillar 14 by it can be considered.

  The unit joint portions 32 and 33 have joint plate portions that are respectively overlapped with the ceiling joint portion 15b and the floor joint portion 18b of the building unit 10, and the temporary pillars 14 are vertically moved via the joint plate portions. It is designed to be coupled to each joint portion 15b, 18b. The joining plate portion is made of, for example, an L-shaped angle material fixed to the outer surfaces of the upper column portion 31a and the lower column portion 31b, and a bolt is screwed to an overhanging portion that protrudes outward in the angle material. Thus, the temporary column 14 is detachably fixed to the respective joint portions 15b and 18b.

  By using the building unit 10 having the above-described configuration, it is possible to construct a unit type building having a wide span indoor space. FIG. 1 is a perspective view showing four building units 10 arranged to form a wide span indoor space in a building T. FIG. FIG. 1 shows the configuration of one floor (for example, the first floor portion) of the building T, and the illustration of the ceiling beam 21 and the floor beam 22 of the building unit 10 is omitted for convenience of explanation. Further, the temporary column 14 has been removed, and the removed portion is shown as a column omitted portion K. 1 may be the whole or a part of the first floor portion in the building T.

  As shown in FIG. 1, in the building T, four building units 10 are arranged such that the temporary column 14 is arranged on the indoor center side and the column 13 is arranged on the building outer surface side in a predetermined building construction place. It is installed. And the pillar omission space which has the magnitude | size for four of the building units 10 is formed in the building T by removing the temporary pillar 14 of each building unit 10 after the unit installation. The central part of the four building units 10 is a column omitted portion K from which four columns are removed.

  The building T is provided with a reinforcing beam 40 for making up for a lack of strength due to the formation of the column omission portion K. The configuration of the reinforcing beam 40 will be described in detail below. The reinforcing beam 40 is a fixed portion where the position on both ends in the longitudinal direction and the position on the column omitted portion K side in the center are fixed to the ceiling beam 16. The fixing portion on the end side is fixed by the first fixing means, and the fixing portion on the column omitted portion K side is fixed by the second fixing means. The second fixing means is provided with a position adjustment mechanism capable of adjusting the vertical position of the end on the column omitted portion K side in the ceiling beam 16 extending along the reinforcing beam 40.

  In FIG. 1, a pair of building units 10 adjacent in the unit wife direction (short side direction) is taken as one unit group, and a reinforcing beam 40 is attached between the two unit groups. The reinforcing beam 40 extends in the unit wife direction and is arranged so as to cross the column omitted portion K in a plan view.

  FIGS. 3A and 3B are views showing a state where the reinforcing beam 40 is attached to the building unit 10 in the first floor portion, FIG. 3A is a plan view of the unit docking portion, and FIG. 3B is a side view of the unit docking portion. It is. DL in the figure indicates a docking line extending in the unit beam direction.

  The reinforcing beam 40 is made of a long plate-shaped steel material, is disposed between four ceiling beams 16 facing each other at a predetermined interval, and is fixed to each ceiling beam 16 in that state. Here, brackets 41 (41 a and 41 b) are respectively attached to both plate surfaces of the reinforcing beam 40, and the reinforcing beam 40 is fixed to the ceiling beam 16 by the bracket 41. The ceiling beams 16 are connected to each other via the reinforcing beams 40.

  The upper portion of the reinforcing beam 40 protrudes above the upper surface of the ceiling beam 16 and the protruding portion is arranged between the floor beams 19 on the second floor (the floor directly above the floor to which the wide span construction method is applied). (See FIGS. 4 and 6).

  Two brackets 41 are provided for the ceiling beam 16 of one building unit 10. The bracket 41 includes a first bracket 41a provided in the vicinity of the longitudinal end of the reinforcing beam 40 and a second bracket provided in the vicinity of the central portion of the reinforcing beam 40 (position near the docking line DL) for each ceiling beam 16. 41b. The brackets 41 a and 41 b are provided at positions that are symmetrical with respect to the central portion in the longitudinal direction of the reinforcing beam 40. Both the first bracket 41a and the second bracket 41b are the same in that the reinforcing beam 40 is fixed to the ceiling beam 16, but the second bracket 41b of both the brackets 41a and 41b has no reinforcing beam. This is different in that a position adjusting function is provided to enable adjustment of the position of the ceiling beam 16 with respect to 40 in the height direction.

  Next, the fixing structure of the reinforcing beam 40 using the brackets 41a and 41b will be described in detail. First, the structure of the fixed portion of the first bracket 41a in the reinforcing beam 40 will be described. 4A and 4B are views showing the structure of the fixed portion of the first bracket 41a. FIG. 4A is a plan view showing the support portion of the reinforcing beam 40 by the first bracket 41a, and FIG. It is AA sectional view taken on the line of a). FIG. 4B also shows the floor large beam 19 of the second floor unit in order to clearly indicate the vertical dimension of the reinforcing beam 40 (width dimension of the reinforcing beam 40) (FIG. 6B described later). The same). FIG. 5 is a cross-sectional view showing the reinforcing beam 40 separated from the ceiling beam 16 at the fixed portion of the first bracket 41a.

  As shown in FIGS. 4 and 5, a first receiving member 51 is fixed to the ceiling beam 16 by welding or the like on the outer surface of the web (fixing by bolt fastening is also possible). The first metal fitting 51 is made of, for example, a rectangular parallelepiped steel block and is provided so as to protrude from the ceiling beam 16 to the outside of the unit. In this case, the first metal fittings 51 are provided so as to extend from one of the building units 10 adjacent in the unit girder direction toward the other, but do not interfere with each other between the adjacent building units 10 and are adjacent to each other. It is formed with a dimension (protrusion amount) that allows the reinforcing beam 40 to be inserted between the two first metal fittings 51. The first metal fitting 51 is fixed in advance at the manufacturing factory of the building unit 10.

  Moreover, the 1st bracket 41a which consists of a rectangular parallelepiped steel block is attached to the reinforcement beam 40 by welding etc. to both board surfaces. The first bracket 41a is substantially the same size as the first metal fitting 51, and the reinforcing beam 40 can be inserted between the ceiling beams 16 with the first bracket 41a fixed on both surfaces. In the present embodiment, the first metal fitting 51 corresponds to a “first protruding portion”, and the first bracket 41 a corresponds to a “first fixed portion”. Further, the first receiving member 51 and the first bracket 41 a constitute “first fixing means”.

  In the reinforcing beam 40, the first bracket 41a is placed on the upper surface of the first receiving bracket 51 on the ceiling large beam 16 side, and the first receiving bracket 51 and the first bracket 41a are bolted together in this state, whereby the ceiling large beam 16 is placed. It is supposed to be fixed against. More specifically, a screw hole 52 (female screw) is formed in the first metal fitting 51, and a bolt insertion hole 53 is formed in the first bracket 41a. Both the bolt insertion hole 53 and the screw hole 52 extend in the vertical direction, and the bolt insertion hole 53 and the screw hole 52 communicate coaxially in a state where the first bracket 41 a is placed on the upper surface of the first receiving metal fitting 51. Then, the bolt 54 is inserted from the bolt insertion hole 53 side of the first bracket 41 a, and the bolt 54 is screwed into the screw hole 52, so that the reinforcing beam 40 is fixed to the ceiling beam 16. It has become.

  The vertical dimension of both the first metal fitting 51 and the first bracket 41a is smaller than the vertical dimension of the ceiling beam 16 (the same applies to all vertical dimensions including the bolt head). ). Further, in a state where the reinforcing beam 40 is fixed to the ceiling beam 16, the lower end portion of the reinforcing beam 40 does not protrude downward from the lower end portion of the ceiling beam 16, and the upper end portion of the reinforcing beam 40 is the upper floor. It has a configuration that does not protrude upward from the upper end of the large beam 19.

  Next, the structure of the fixed portion of the second bracket 41b in the reinforcing beam 40 will be described. 6A and 6B are diagrams showing the structure of the fixed portion of the second bracket 41b. FIG. 6A is a plan view showing the support portion of the reinforcing beam 40 by the second bracket 41b, and FIG. It is BB sectional drawing of a). FIG. 7 is a cross-sectional view showing the reinforcing beam 40 separated from the ceiling beam 16 at the fixed portion of the second bracket 41b.

  As shown in FIGS. 6 and 7, the second receiving metal 61 is fixed to the ceiling beam 16 on the outer surface of the web by welding or the like (fixing by bolt fastening is also possible). Similar to the first bracket 51 on the first bracket 41a side, the second bracket 61 is made of, for example, a rectangular parallelepiped steel block, and is provided so as to protrude from the ceiling beam 16 to the outside of the unit. In this case, the second metal fittings 61 are provided so as to extend from one of the building units 10 adjacent in the unit girder direction toward the other, but do not interfere with each other between the adjacent building units 10 and are adjacent to each other. It is formed with a dimension (protrusion amount) that allows the reinforcing beam 40 to be inserted between the two second metal fittings 61. This second metal fitting 61 is fixed in advance at the manufacturing factory of the building unit 10.

  The vertical mounting positions of the receiving brackets 51 and 61 on the ceiling beam 16 are the same on the first bracket 41a side and the second bracket 41b side (see FIG. 8). However, in the second bracket 41b, since the two bolts 62 and 63 are attached to one second bracket 41b, the length dimension in the longitudinal direction of the reinforcing beam 40 of the second metal fitting 61 is equivalent to the first bracket 41b. It is larger than the catch 51.

  In addition, a second bracket 41b made of a rectangular parallelepiped steel block is attached to both the plate surfaces of the reinforcing beam 40 by welding or the like. The second bracket 41b is substantially the same size as the second metal fitting 61, and the reinforcing beam 40 can be inserted between the ceiling beams 16 with the second bracket 41b fixed on both surfaces. In the present embodiment, the second receiving metal fitting 61 corresponds to a “second protruding portion”, and the second bracket 41 b corresponds to a “second fixed portion”. Further, the second receiving metal 61 and the second bracket 41b constitute “second fixing means”.

  Two bolts 62, 63 can be attached to the second bracket 41b, and one of the bolts 62 is screwed into a screw hole 64 (female screw) formed in the second bracket 41b, and the other The bolt 63 is inserted without being screwed into the bolt insertion hole 65 formed in the second bracket 41b. When the bolt 62 is screwed into the screw hole 64 as far as it will go, the bolt tip protrudes downward from the lower surface of the second bracket 41 b and comes into contact with the upper surface of the second metal fitting 61. In this case, the second bracket 41b is spaced upward with respect to the second metal fitting 61 by the amount of protrusion of the bolt 62, and L1 in the drawing serves as a raising allowance.

  In addition, a screw hole 66 (female screw) is formed in the second metal fitting 61, and the bolt 63 inserted into the bolt insertion hole 65 of the second bracket 41b is screwed into the screw hole 66. Yes. Both the bolt insertion hole 65 and the screw hole 66 extend in the vertical direction and communicate with each other coaxially. Then, the bolt 63 is inserted from the bolt insertion hole 65 side of the second bracket 41 b and the bolt 63 is screwed into the screw hole 66, so that the reinforcing beam 40 is fixed to the ceiling beam 16. It has become.

  The first bracket 41a and the second bracket 41b have different mounting positions in the vertical direction in a state where the reinforcing beam 40 is disposed so as to extend in the horizontal direction. Specifically, as shown in FIG. 8, the second bracket 41b is provided at a position higher by “L1” than the first bracket 41a. In other words, when comparing the height dimension of the first bracket 41 a with respect to the first metal fitting 51 and the height dimension of the second bracket 41 b with respect to the second metal fitting 61, the latter is larger. And the front-end | tip part of the volt | bolt 62 protrudes only "L1" from the lower end surface of the 2nd bracket 41b. As described above, “L1” is a raising margin, and the ceiling beam 16 can be lifted with respect to the reinforcing beam 40 by rotating the bolt 62 to reduce the protruding amount of the tip.

  After the building unit 10 is installed at the building construction site, the reinforcing beam 40 is attached to a predetermined position between the building units 10 in the following procedure. In this case, a plurality of the four building units 10 having the temporary pillars 14 are arranged so that the temporary pillars 14 are adjacent to each other, and the column omitted portion K is formed by removing the temporary pillars 14.

  (1) Prepare the reinforcing beam 40 to be used this time. At this time, the bolt 62 is screwed into the screw hole 64 of the second bracket 41b in the reinforcing beam 40 in advance, and the protruding amount of the tip is L1.

  (2) The reinforcing beam 40 is disposed so as to cross the column omitted portion K between the plurality of building units 10. At this time, the lower surface of the first bracket 41 a comes into contact with the upper surface of the first metal fitting 51, whereas the lower end of the bolt 62 comes into contact with the upper surface of the second metal fitting 61 in the second bracket 41 b. This state is the state shown in FIGS. 5B and 7B, respectively. That is, the lower surface of the second bracket 41b is separated from the upper surface of the second metal fitting 61 by L1.

  (3) After that, the first bracket 41 a is fixed to the first receiving bracket 51 with the bolt 54, and the second bracket 41 b is fixed to the second receiving bracket 61 with the bolt 63. In this case, in a state in which the reinforcing beam 40 is fixed to the ceiling beam 16 by the first bracket 41a, that is, in a state in which the proximal end side of the reinforcing beam 40 is fixed, the gap between the second metal fitting 61 and the second bracket 41b. A predetermined gap is formed in the vertical direction, and the reinforcing beam 40 is fixed to the ceiling beam 16 by the second bracket 41b while the gap is held by the tip of the bolt 62. As a result, the basic work for the attachment of the reinforcing beam 40 is completed. At this time, the ceiling beam 16 is supported so as to extend in the horizontal direction with respect to the reinforcing beam 40 extending in the horizontal direction.

  Here, in the second bracket 41b, it is possible to raise the ceiling beam 16 by adjusting the protruding amount of the bolt 62, and there is a concern that the ceiling drop at the column omitted portion K may occur, or the column omitted portion K actually. When the ceiling falls down, the ceiling beam 16 is pulled up. This operation may be performed at the time of construction of the building T, or may be performed as maintenance of the building T after the building T is completed.

  Specifically, as shown in FIG. 9 (a), the bolt 62 (adjustment bolt) is rotated in the anti-screw-in direction in the second bracket 41b, thereby reducing the tip protrusion amount of the bolt 62. The tip portion is separated from the upper surface of the second metal fitting 61. The protruding amount of the bolt tip at this time is “L2” (L2 <L1). Then, in this state, the other bolt 63 (fixing bolt) is rotated in the screwing direction to bring the second receiving metal fitting 61 closer to the second bracket 41b. Thereby, as shown in FIG. 9B, the ceiling girder 16 is pulled up with respect to the reinforcing beam 40.

  Note that the amount of lifting of the ceiling beam 16 (= L1-L2) in the second bracket 41b can be arbitrarily adjusted within the range of the tip protrusion amount (L1) of the bolt 62 in the initial state. That is, the ceiling beam 16 can be pulled up to L1 at the maximum. L1 may be, for example, about several mm to 20 mm.

  FIGS. 10A and 10B show the state of the ceiling beam 16 and the reinforcing beam 40 when the position adjustment (height adjustment) is performed by the second bracket 41b as described above. FIG. 10A shows a case where the vertical beam is bent in the reinforcing beam 40 and the position adjustment by the second bracket 41b is performed in a state where the column omission portion side of the ceiling beam 16 is lowered due to the bending. . In FIG. 10A, even if the reinforcing beam 40 is bent downward, the left and right ceiling beams 16 are held in a state extending in the horizontal direction. In this case, when the first bracket 41a and the second bracket 41b are compared, the fixing positions of the ceiling beams 16 in the vertical direction in the reinforcing beams 40 are different. Thereby, the ceiling falling in the column omission part K is suppressed.

  Further, in FIG. 10B, the reinforcing beam 40 is not bent, but the column omitted portion side of the ceiling beam 16 is raised with respect to the opposite side (column 13 side) in anticipation of the bending. The case where the position adjustment by the 2nd bracket 41b was made is shown. In this case, when the first bracket 41a and the second bracket 41b are compared, the fixing positions of the ceiling beams 16 in the vertical direction in the reinforcing beams 40 are different. Thereby, the ceiling falling in the column omission part K is suppressed. In addition, when it sees with the building unit 10 on either side, the ceiling girder 16 has a substantially square shape.

  The reinforcing beam 40 is a plate material used in the vertical direction. Particularly in the present embodiment, the reinforcing beam 40 has a width corresponding to the vertical dimension of the ceiling beam 16 + the floor beam 19 and is disposed so that the plate surface extends in the vertical direction. In this case, when the reinforcing beam 40 and the ceiling beam 16 are compared, the ceiling beam 16 has a lower resistance to vertical deflection. Therefore, if the heights of the receiving brackets 51 and 61 of the ceiling beam 16 are made different, the longitudinal direction of the ceiling beam 16 is changed while the shape of the reinforcing beam 40 is maintained.

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

  In the unit type building having the column omitting part K, it is possible to form a wide indoor space by omitting some of the columns 13, but in the column omitting part K, the end of the ceiling beam 16 on the column omitting part K side There is concern that the ceiling will drop downward and the ceiling height will be reduced. In this regard, in the above configuration, a position adjusting mechanism is provided in the second fixing means (the second bracket 41b and the second metal fitting 61) provided at the position on the column omitting portion K side in the reinforcing beam 40, and the position adjustment is performed. By the mechanism, the vertical position of the end on the column omitted portion K side in the ceiling beam 16 extending along the reinforcing beam 40 (that is, the longitudinal direction of the ceiling beam 16) can be adjusted. As a result, when the end of the column omission part K side of the ceiling beam 16 is lowered downward, the end of the column omission part K side is lifted and the ceiling beam 16 is in a horizontal state with the reinforcing beam 40 attached. Can be returned to. Alternatively, in anticipation that the end of the column omission part K side of the ceiling beam 16 falls downward, the end of the column omission part K side can be lifted in advance with respect to the opposite end. As a result, it is possible to suppress the ceiling drop of the column omitted portion K in the unit type building using the column omitted type building unit 10.

  A predetermined gap is formed in the vertical direction between the second bracket 61 and the second bracket 41b in a state where the reinforcing beam 40 is fixed to the ceiling beam 16 by the first bracket 41a (first fixing means). In this way, the gap was used as a position adjustment allowance (raising allowance L1). In this case, the clearance for the raising allowance L1 functions as a position adjustment allowance for adjusting the vertical position of the end of the ceiling beam 16 on the column omitted portion K side. In other words, by reducing or eliminating the gap between the second metal fitting 61 and the second bracket 41b, the end of the ceiling beam 16 on the column omitted portion K side is lifted, thereby realizing a desired position adjustment. it can.

  In the second bracket 41b, when a gap is formed between the second bracket 61 and the second bracket 41b, the state is maintained, and the gap adjustment bolt 62 can be adjusted during position adjustment. Was provided. Specifically, the bolt 62 is screwed from above into a screw hole 64 provided in the second bracket 41b so as to penetrate vertically, and a gap is formed by a portion protruding downward from the second bracket 41b. The configuration is as follows. Thereby, the gap can be adjusted by the screwing position of the bolt 62, and the longitudinal direction of the ceiling beam 16 can be easily adjusted.

  The maximum protruding dimension of the front end side of the bolt 62 in the state where the bolt 62 is screwed into the screw hole 64 of the second bracket 41b (the protruding end amount when the bolt 62 is screwed all the way in) The clearance between the second bracket 61 and the second bracket 41b in the state where the first bracket 41a is fixed and the second bracket 41b is not fixed (free) is the same. Accordingly, when the reinforcing beam 40 is set to the ceiling beam 16 in a state where the bolt 62 is screwed into the screw hole 64 of the second bracket 41b as far as possible, the tip of the bolt 62 becomes the second receiving metal 61. It abuts on the upper surface. In this case, when the reinforcing beam 40 is initially set, it is not necessary to finely adjust the projecting dimension of the tip of the bolt 62, and a user-friendly configuration can be realized.

  As a fixing member for fixing the second bracket 41b, a bolt 63 is provided in a direction extending in the up-down direction. By tightening the bolt 63, the second bracket 41b is fixed to the second receiving bracket 61, or the second receiving bracket 61 and the second receiving bracket 61b are fixed. The gap dimension between the two brackets 41b is adjusted. In this case, by using the bolt 63 as the fixing member, it is possible to realize a configuration that can easily adjust the gap size.

  One end of the bolt 62 can be separated from the top end of the bolt and the upper surface of the second metal fitting 61, and the second bolt 63 can be rotated relative to the second bracket 41b according to the distance. The catch 61 can be pulled up. Thereby, the direction of the longitudinal direction of the ceiling beam 16 can be adjusted. In this case, both the above-described two bolts 62 and 63 may be rotated from above and a configuration with good workability can be realized.

  The height position of the second bracket 41b relative to the second bracket 61 is larger than the height position of the first bracket 41a relative to the first bracket 51. Thereby, the direction of the longitudinal direction of the ceiling beam 16 can be adjusted.

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

  -You may change the structure of the 2nd fixing means which has the 2nd metal fitting 61 and the 2nd bracket 41b like Fig.11 (a). FIG. 11A is a cross-sectional view showing a configuration in which the second fixing means is changed from FIG. 6B. As shown in FIG. 11 (a), the second bracket 41b is formed with a bolt insertion hole 65 penetrating vertically, and the second metal fitting 61 is formed with a screw hole 66 opened on its upper surface (see FIG. 11). In the configuration, it penetrates up and down). The fixing bracket 63 is inserted from the bolt insertion hole 65 side and is screwed into the screw hole 66, whereby the second bracket 41 b is fixed to the second receiving metal fitting 61. The configuration so far is substantially the same as FIG. 6B, and the difference is that the number of bolts used for the second bracket 41b is two (bolts 62 and 63) in the configuration of FIG. In the configuration (a), one (bolt 63) is provided. A plurality of spacer members 71 each having a plate shape as a gap adjusting member are detachably provided on the fixing bolt 63 in the gap between the second metal fitting 61 and the second bracket 41b.

  The spacer member 71 is made of, for example, a steel plate and has a U shape or a C shape, and can be attached and pulled out from the side with respect to the shaft portion of the bolt 63. In this case, the number of attached spacer members 71 is changed according to the size of the gap between the second metal fitting 61 and the second bracket 41b.

  According to the above configuration, the gap can be adjusted depending on the number of the spacer members 71 attached, and the longitudinal direction of the ceiling beam 16 can be easily adjusted.

  The number of spacer members 71 to be attached may be arbitrary, and the smaller the thickness, the finer the gap dimension can be adjusted. However, the number of spacer members 71 is not necessarily plural, and one spacer member 71 is attached. Also good.

  In the above embodiment, the height adjustment mechanism is provided on the latter (second bracket 41b) of the second bracket 61b provided on the ceiling beam 16 and the second bracket 41b provided on the reinforcing beam 40. However, it is good also as a structure which changes this and provides a height adjustment mechanism in the former (2nd metal fitting 61). The configuration is shown in FIG. In FIG. 11B, illustration of the fixing bolt 63 for fixing the second bracket 41b to the second metal fitting 61 is omitted for convenience of explanation, but FIG. 6B and FIG. As in a), the fixing by the bolt 63 is performed.

  In FIG. 11B, the gap adjusting member 72 is attached to the second receiving metal fitting 61. The gap adjusting member 72 has a substantially U-shaped cross section, and the central groove portion can be assembled to the second receiving metal fitting 61. In the state where the gap adjusting member 72 is attached to the second metal fitting 61, a predetermined gap (raising margin L1) is secured between the second metal fitting 61 and the second bracket 41b, and the gap adjusting member 72 is By removing the ceiling girder 16 can be lifted up by a raising allowance L1.

  In the above embodiment, each bracket is configured such that the height position of the second bracket 41b relative to the second bracket 61 is greater than the height position of the first bracket 41a relative to the first bracket 51. While the height positions of 51 and 61 are the same and the second bracket 41b is provided at a position higher than the first bracket 41a (see FIG. 8), this may be changed. That is, the height positions of the brackets 41 a and 41 b may be the same, and the second receiving metal 61 may be provided at a lower position than the first receiving metal 51.

  -You may change the structure of a 1st fixing means (1st bracket 41a, the 1st metal fitting 51) like Fig.12 (a), (b). In FIG. 12A, the height positions of the left and right brackets 41a and 41b and the left and right brackets 51 and 61 are made the same, and a spacer is provided between the first bracket 41a and the first bracket 51. The member 75 is provided. The spacer member 75 may be, for example, a plurality of spacer plates or one spacer block. In this case, due to the presence of the spacer member 75, a predetermined gap (raising margin L1, a gap in an unfixed state) is formed on the second fixing means (second bracket 41b, second receiving metal fitting 61) side. Therefore, the position of the ceiling beam 16 can be adjusted by this gap. The spacer member 75 may be interposed between the first bracket 41a and the first metal fitting 51 at the time of building construction.

  In FIG. 12B, the height positions of the left and right brackets 41a and 41b and the left and right receiving brackets 51 and 61 are made the same, and the first fixing means (the first bracket 41a and the first receiving member). The structure of the metal fitting 51) is the same as that of the second fixing means (second bracket 41b, second metal fitting 61). That is, the second bracket 41b is provided with the position adjusting bolt 62 and the fixing bolt 63 as described above. Similarly, the first bracket 41a is also provided with the position adjusting bolt 77 and the fixing bolt 63. Bolts 78 are provided. Refer to FIG. 6, FIG. 7, etc. for the detailed structure of each bolt. In this configuration, the front end side of the bolt 77 is protruded downward from the first bracket 41a on the first fixing means side, so that a predetermined value is provided on the second fixing means (second bracket 41b, second receiving metal fitting 61) side. Are formed (raising allowance L1, gap in an unfixed state). Therefore, the position of the ceiling beam 16 can be adjusted by this gap.

  In the configuration of FIG. 12B, the position adjusting mechanism is provided in both the first fixing means and the second fixing means. In this case, after the building construction, the position adjustment can be performed on both the front end portion of the ceiling beam 16 on the column omitted portion side and the front end portion on the opposite side.

  In the above embodiment, two fixing means (brackets 41a and 41b and receiving brackets 51 and 61) are provided on the ceiling beam 16 of each building unit 10, and the two ceiling beams 16 arranged in a straight line have four on one side. Although the fixing means is provided, this may be changed as shown in FIG. In FIG. 13, a bracket 81 provided on the reinforcing beam 40 as the second fixing means is provided as a common member on the ceiling large beam 16 on the left side of the drawing and the ceiling beam 16 on the right side of the drawing. Specifically, the bracket 81 extends in the longitudinal direction of the reinforcing beam 40 and is provided so as to reach both the left and right ceiling beams 16. The configuration of the second metal fitting 61 on the ceiling beam 16 side may be the same as described above.

  In the above embodiment, the length in the longitudinal direction of the reinforcing beam 40 is approximately the length in the unit wife direction × 2 (the length of two building units 10). The length in the longitudinal direction may be shortened. The reinforcing beam 40 may have at least a length in the wife direction of the building unit 10.

  In the above-described embodiment, the configuration example embodied in the two-story building T has been described. However, the present invention can also be embodied in a one-story building or a three-story building.

  DESCRIPTION OF SYMBOLS 10 ... Building unit, 14 ... Temporary pillar, 16 ... Large ceiling beam, 40 ... Reinforcement beam, 41a ... 1st bracket (1st to-be-fixed part), 41b ... 2nd bracket (2nd to-be-fixed part), 51 ... 1st Receiving bracket (first projecting portion), 54 ... bolt (fixing member), 61 ... second receiving bracket (second projecting portion), 62 ... bolt (adjusting bolt), 63 ... bolt (fixing bolt), 64 ... Screw hole, 65 ... through hole, 66 ... screw hole, 71 ... spacer member, 72 ... gap adjusting member, K ... column omission part, L1 ... position adjustment allowance.

Claims (9)

It is composed of a plurality of building units formed by connecting a ceiling beam, a floor beam, and a column, and the plurality of building units include a building unit in which a removable temporary column is used as a part of the column,
A plurality of building units having the temporary pillars are arranged so that the temporary pillars are adjacent to each other, a continuous wide space is formed by removing the temporary pillars and forming a column omitting part, and the ceiling A unit type building in which reinforcing beams are arranged so as to cross the pillar omitted portion in a predetermined direction in plan view along a large beam,
The reinforcing beam is a fixed portion where the position on both end sides in the longitudinal direction and the position on the column omitted portion side in the center are fixed to the ceiling beam. The fixing portion on the end side is fixed by the first fixing means, and the fixing portion on the pillar omitted portion side is fixed by the second fixing means,
The second fixing means is provided with a position adjusting mechanism capable of adjusting the vertical position of the end portion on the column omission portion side in the ceiling beam extending along the reinforcing beam. Ceremony building. The second fixing means is provided on the ceiling beam and protruding from the ceiling beam to the outside of the unit, and is provided on the reinforcing beam and disposed above the protrusion and fixed to the protrusion. A fixed portion, and fixing the reinforcing beam to the ceiling beam by fixing the fixed portion to the protruding portion with a fixing member.
In a state where the reinforcing beam is fixed to the ceiling beam by the first fixing means, a predetermined gap is formed in the vertical direction between the protruding portion and the fixed portion, The unit-type building according to claim 1, wherein the gap serves as a position adjustment allowance.   The second fixing means is provided with a gap adjusting member that maintains the state when the gap is formed between the protruding portion and the fixed portion, and that can adjust the gap during position adjustment. The unit type building according to claim 2, wherein the unit type building is provided. A screw hole penetrating vertically is formed in the fixed portion, and an adjustment bolt as the gap adjusting member is screwed into the screw hole from above,
The clearance gap is formed by the part which the front-end | tip part can contact | abut to the upper surface of the said protrusion part in the said volt | bolt for adjustment, and protrudes below rather than the said to-be-fixed part. The listed unit building.   The maximum projecting dimension on the tip side of the adjustment bolt in a state where the adjustment bolt is screwed into the screw hole of the fixed portion, the first fixing means, and the second fixing means The unit type building according to claim 4, wherein a gap formed between the protruding portion and the fixed portion in the non-fixed state is the same. A through-hole penetrating vertically is formed in the fixed portion, and a screw hole is formed in the upper surface of the protruding portion.
The fixing bolt as the fixing member is inserted from the through hole side and is screwed into the screw hole of the protruding portion, so that the fixed portion is fixed to the protruding portion. The unit type building according to any one of claims 2 to 5, characterized by the above. A through-hole penetrating vertically is formed in the fixed portion, and a screw hole is formed in the upper surface of the protruding portion.
The fixing bolt as the fixing member is inserted from the through hole side and is screwed into the screw hole of the protruding portion, so that the fixed portion is fixed to the protruding portion,
The fixing bolt is provided with one or a plurality of spacer members detachably provided as the gap adjusting member in the gap between the protruding portion and the fixed portion. Item 3. The unit type building according to item 3. The first fixing means is provided on the ceiling girder and protrudes from the ceiling girder to the outside of the unit; the first fixing means is provided on the reinforcing beam and disposed above the first protrusion. And fixing the reinforcing beam to the ceiling beam by fixing the first fixed portion to the first projecting portion by a fixing member. And
The second fixing means includes a second projecting portion provided on the ceiling beam and projecting outside the unit from the ceiling beam, and provided on the reinforcing beam and disposed above the second projecting portion. And fixing the reinforcing beam to the ceiling beam by fixing the second fixed portion to the second projecting portion with a fixing member. And
The height position of the second fixed portion relative to the second protrusion in the second fixing means is higher than the height position of the first fixed portion relative to the first protrusion in the first fixing means. The unit type building according to any one of claims 1 to 7, wherein the unit type building is large.   The first fixing means is provided with a position adjustment mechanism capable of adjusting a vertical position of an end portion on the opposite side of the column omitting portion in the ceiling beam extending along the reinforcing beam. The unit type building according to any one of claims 1 to 8.

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