JP2011063985A - Unit building and partial frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unit building enabling reinforcement between building units while maintaining the characteristics specific to a framed structure. <P>SOLUTION: This unit building 10 is formed by positioning, adjacent to each other, a plurality of building units 1A-1D the skeletons of which are formed of beam members and column members. Groove-like gaps 101 which extend in the axial direction of ceiling beams 12A through a plurality of unit buildings are formed between the mutually facing building units. Reinforcement frames 2 of generally gantry-shape in side view having frame beams 22 the lengths of which are generally equal to those of the gaps, frame columns 21, 21 extending from both ends of the frame beams downward, and support parts 23, 23 provided to the bottom ends of the frame columns are interposed in the gaps. The frame beams and the ceiling beams 12A arranged parallel to the frame beams are partially connected to each other, and the support parts are separated from a foundation beam 16a on which the building units are installed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a unit building and a local frame configured by adjoining a plurality of building units.

  Conventionally, a unit building in which a plurality of building units manufactured in a factory are stacked vertically and horizontally is known. In general, these building units are connected in close proximity without providing a substantial gap except for the purpose of absorbing errors.

  On the other hand, Patent Documents 1 and 2 disclose unit buildings that can expand the building area beyond the limit of multiples of building units by providing a gap between the building units and connecting them. .

JP 2007-247343 A Japanese Patent No. 3796494

  However, in the unit buildings disclosed in Patent Documents 1 and 2, the horizontal rigidity of the unit building is ensured by arranging the cross beams or the structural plywood without gaps in the gaps between the building units. , Material costs increase. In addition, when a structural beam or a structural plywood is attached to the entire gap, it is difficult to remove the structural member even if piping is used between the beams, and maintenance such as piping repair is easy. I can't do it.

  In addition, if the rigidity between the beams is increased too much over the entire length in the axial direction by using a cross beam, the beams will be difficult to bend, and the original characteristics of the frame structure that absorb energy by deformation cannot be fully exhibited. There is a fear.

  Furthermore, there is a demand for removing a pillar material between building units to form a wide indoor space. However, effective reinforcement that does not reduce the original characteristics of the above-described frame structure is desired.

  Then, this invention aims at providing the local building which can reinforce the unit building which can reinforce | strengthen between building units while maintaining the original characteristic of a frame structure, and the desired location easily It is said.

  In order to achieve the above object, the unit building of the present invention is a unit building constituted by adjoining a plurality of building units each of which a framework is formed by a beam material and a column material, and between the opposing building units. A groove-shaped first gap is formed extending in the axial direction of the beam material and straddling between a plurality of building units, and a frame beam having a length substantially equal to the length of the first gap; A side-view substantially portal-shaped reinforcing frame having a frame column suspended from both ends of the frame beam and a support portion provided at the lower end of the frame column is interposed in the first gap, and the frame beam and the frame beam The beam members in parallel are partially connected to each other, and the support portion is separated from a base portion on which the building unit is installed.

  In addition, a second gap that is substantially orthogonal to the first gap is formed in a continuous groove shape across a plurality of building units, and a column and a short beam that protrudes from the upper end of the column And a local frame having a support portion provided at the lower end of the column portion is interposed at both ends of the second gap, and partially connects the short beam portion and the beam material parallel thereto. The support portion may be separated from the base portion on which the building unit is installed.

  Further, the support part has a base part for erecting the frame pillar or the pillar part, and a plurality of leg parts, and the plurality of leg parts are spread from the base part downward. An arrangement is preferred.

  The frame beam is formed by a pair of divided beams arranged in parallel with a gap in the width direction of the first gap, and each divided beam is connected to the beam material facing each other. It can also be.

  Furthermore, the column material of the said building unit may be abbreviate | omitted in the location where the corner part of four said building units opposes. Here, at least one intermediate pillar can be erected on the intermediate portion of the reinforcing frame.

  Further, the local frame of the present invention is a local frame comprising a column portion, a short beam portion projecting from the upper end of the column portion, and a support portion provided at the lower end of the column portion, the support portion Has a base part for erecting the pillar part, and a plurality of leg parts, and the plurality of leg parts are arranged so that the interval widens downward from the base part, and the support part is The base unit on which the building unit is installed is separated.

  In the unit building of the present invention configured as described above, the frame pillars are provided at both ends of the reinforcing frame interposed in the first gap, and the frame beams spanned between the upper ends of the frame pillars and the building units on both sides thereof are provided. Partially connect the beam. On the other hand, the support part of the reinforcing frame is separated from the base part of the building unit.

  For this reason, a part of load which acts on a unit building can be received by the reinforcement frame supported independently from a building unit. In other words, since the support part of the reinforcement frame and the base part of the building unit are separated, even if the unit building shakes due to an earthquake or the like, the reinforcement frame and the building unit move separately to offset the force and suppress deformation can do.

  In addition, the frame beam of the reinforcement frame and the beam material of the building unit are only partially connected, so otherwise the beam material of the building unit can be bent, such as when a large earthquake occurs By deforming the frame structure, the energy of the earthquake can be absorbed and the unit building can be prevented from collapsing.

  Moreover, when the 2nd clearance gap substantially orthogonal to the 1st clearance gap is formed, the local flame | frame is interposed by interposing the local frame which makes a pillar part the main material in the both ends of the 2nd clearance gap. Can also handle a part of the load of the unit building.

  Further, by providing the support portion with a leg portion that is spaced downward from the base portion, a bending moment is generated in the base portion due to the axial force of the leg portion, and the frame column or column portion is generated by the bending moment. Can be prevented from being deformed. By suppressing the deformation of the reinforcing frame or the local frame in this way, it is possible to suppress the deformation of the building unit connected to the frame, and further the unit building.

  In addition, when the frame beam is formed by a pair of split beams, and these split beams are connected to the beam members of the building unit facing each other, the restraining force by the reinforcing frame on the beam members is reduced. The material can be bent to absorb earthquake energy.

  And if a reinforcement structure is formed by such a reinforcement frame straddling between building units, the pillar material of the building unit of the location where the corner part of four building units concentrates can be omitted. An indoor space can be formed.

  Moreover, even when the proof stress with respect to the vertical load or the horizontal load is insufficient due to the omission of the column material, it can be easily compensated by standing the intermediate column at the intermediate portion of the reinforcing frame. Furthermore, the pillars of the building unit are arranged at the determined positions of the corners, but if they are intermediate pillars, the installation position can be easily moved, and the floor plan can be freely set without being restricted by the shape of the building unit. Can be.

  In addition, by installing a local frame with legs that spread downward from the base part so as to support the beam material at a location adjacent to the column material of the building unit or in the middle between the column materials, The deformation of the unit building can be suppressed. That is, at the location where the local frame is installed, a bending moment is generated in the base portion due to the axial force of the leg, and the deformation of the column portion and the deformation of the local frame are suppressed by the bending moment, and the building unit connected thereto, Can suppress the deformation of the unit building.

It is a schematic diagram explaining the structure of the reinforcement structure of the unit building of embodiment of this invention. It is a top view explaining the structure of the unit building formed of six building units. It is a top view explaining the structure of the unit building formed of eight building units. It is a detailed top view explaining the structure of the frame pillar periphery of a reinforcement frame. It is sectional drawing of the AA arrow direction of FIG. It is sectional drawing of the BB arrow direction of FIG. It is a detailed sectional view explaining the configuration around the support portion of the reinforcing frame. It is sectional drawing of the CC arrow direction of FIG. It is sectional drawing of the DD arrow direction of FIG. It is a detailed top view explaining the structure of the location where the 1st clearance gap and the 2nd clearance gap cross. It is a detailed top view explaining the structure of the frame pillar periphery of the reinforcement frame of an Example. It is sectional drawing of the EE arrow direction of FIG. It is sectional drawing of the FF arrow direction of FIG. It is sectional drawing of the GG arrow direction of FIG. It is detail sectional drawing explaining the structure of the support part periphery of the reinforcement frame of an Example. It is sectional drawing of the HH arrow direction of FIG. It is sectional drawing of the II arrow direction of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram showing a schematic configuration of a reinforcing structure of a unit building 10 according to the present embodiment in a diagram. That is, this FIG. 1 is the figure which showed the structural member of the unit building 10 with the straight line.

  This unit building 10 is constructed by installing four building units 1A, 1B, 1C, 1D adjacent to the site. Here, although the structure will be further described mainly using the building unit 1A as an example, the other building units 1B, 1C, and 1D have the same structure.

  This building unit 1A is composed of columns 11,... As columns arranged at the corners, and ceiling beams 12A, 12B as beams extending between the upper ends of the columns 11,. .. and a floor beam 13A, 13B,... As a beam material spanned between the lower ends of the columns 11,... Are formed into a box-shaped frame structure (frame structure). Here, the beam material on the short side is the ceiling beam 12A or the floor beam 13A, and the beam material on the long side is the ceiling beam 12B or the floor beam 13B.

  Further, in this building unit 1A, pillars (two-dot chain lines in FIG. 1) at the corners at locations facing the corners of the other three building units 1B, 1C, 1D are omitted. Further, the contact points of the column 11, the ceiling beams 12A and 12B, and the floor beams 13A and 13B are rigidly connected (white circles). And the illustration of the fulcrum 14, ... of the building unit 1A is a schematic representation of the foundation of the building unit 1A.

  In the unit building 10 shown in FIG. 1, a groove-like gap 101 (first gap) is formed between the building units 1A and 1B and between the building units 1C and 1D. In addition, a gap 102 (second gap) substantially orthogonal to the gap 101 is formed in a continuous groove shape between the building units 1A and 1C and between the building units 1B and 1D. These gaps 101 and 102 are formed, for example, to about 20-30 cm.

  Then, the reinforcing frame 2 having a substantially portal shape in a side view is interposed in the first gap 101. The reinforcing frame 2 includes a frame beam 22 having a length substantially equal to the length of the gap 101 in plan view, frame columns 21 and 21 suspended from both ends of the frame beam 22, and lower ends of the frame columns 21 and 21. Support portions 23 and 23 provided respectively.

  Further, the frame beam 22 is partially connected to the building units 1A and 1B and the building units 1C and 1D via connecting portions 24 and 24 in the vicinity of the frame columns 21 and 21, respectively. Further, the frame beams 22 are also connected to the building units 1A, 24A, 24A via the connecting portions 24A, 24A in the vicinity of the corners where the pillars of the building units 1A, 1B, 1C, 1D where the gaps 101 and 102 intersect are omitted. It is connected to 1B, 1C, 1D.

  On the other hand, the support parts 23 and 23 of the reinforcement frame 2 are separated from the fulcrum 14 of the building unit 1A or the like, and the support part 23 and the fulcrum 14 have independent support structures.

  On the other hand, local frames 3 and 3 are interposed at both ends of the gap 102 substantially orthogonal to the gap 101, respectively. The local frame 3 includes a column portion 31, a short beam portion 32 projecting from the upper end of the column portion 31, and a support portion 33 provided at the lower end of the column portion 31.

  The short beam portion 32 is a member slightly protruding from the upper end of the column portion 31 along the ceiling beam 12B, and is connected to the ceiling beams 12B and 12B on both sides via the connecting portion 34. Moreover, the support part 33 of the local frame 3 is also a support structure independent from the fulcrum 14 of the building unit 1A or the like.

  Here, FIG. 1 shows a schematic configuration of the unit building 10 constituted by four building units 1A, 1B, 1C, and 1D. More specifically, the unit building as shown in FIGS. 10A and 10B. Here, FIG. 2 is a plan view of the first floor of a unit building 10A composed of six building units 1A, 1B, 1C, 1D, 1E, and 1F, and FIG. 3 shows eight building units 1A, 1B, and 1C. , 1D, 1E, 1F, 1G, 1H is a plan view of the first floor of a unit building 10B.

  In the unit buildings 10A and 10B shown in FIGS. 2 and 3, since the spans of the reinforcing frames 2A and 2B become longer, one intermediate pillar 25 is erected in the intermediate portion.

  Next, the detailed structure of the unit building 10 will be described with reference to FIGS. In addition, the structure demonstrated below is the same also in unit building 10A, 10B.

  First, in the building unit 1A, the pillar 11 is formed of a square steel pipe, the ceiling beams 12A and 12B, and the floor beams 13A and 13B are formed of a steel material having a substantially U-shape in cross section, and is orthogonal to the pillar 11 as shown in FIG. The two ceiling beams 12A and 12B (or floor beams 13A and 13B) are rigidly joined via the joining frame member 15.

  On the other hand, the frame column 21 of the reinforcing frame 2 is formed of a steel material having a substantially C-shape in plan view as shown in FIGS. 4 and 5 and is connected to the columns 11 and 11 of the building units 1A and 1B on both sides. There is no standing.

  A frame beam 22 extends from the upper end of the frame column 21 in the axial direction of the ceiling beams 12A and 12A. The frame beam 22 includes two split beams 22a and 22a extending along the ceiling beams 12A and 12A on both sides. The pair of split beams 22 a and 22 a are arranged in parallel with a gap in the width direction of the gap 101.

  As shown in FIG. 5, the split beam 22 a is formed of a steel material having a substantially U shape in cross section. Further, the end portion of the split beam 22 a that is in contact with the frame column 21 is closed by the end face material 221.

  Then, as shown in FIG. 4-6, the bolt portions 26a and 26b through which the end face material 221 of the split beam 22a is inserted protrude and are fixed to the inner side of the frame column 21.

  The split beams 22a and 22a, and the frame beam 22 and the ceiling beams 12A and 12A are partially connected by a connecting portion 24 that extends over the vicinity of the frame column 21. More specifically, as shown in FIG. 4, the connecting portion 24 is disposed at a position where the joining frame member 15 that joins the column 11 and the ceiling beam 12 </ b> A is provided.

  As shown in FIG. 4, the connecting portion 24 includes a plurality of support bolt portions 24a and 24b arranged at intervals in the axial direction of the ceiling beam 12A (longitudinal direction of the gap 101), and the support bolt portions 24a. , 24b, and a connecting surface member 24c.

  The support bolt portions 24a and 24b are attached to the side surface of the joining frame member 15 that joins the column 11 and the ceiling beam 12A, and one support bolt portion 24a is attached close to the column 11 and the other support. The bolt part 24 b is attached in the vicinity of the edge of the joining frame member 15. As shown in FIGS. 4 and 5, these support bolt portions 24 a and 24 b penetrate the split beam 22 a, the joining frame member 15, and the ceiling beam 12 </ b> A to join them.

  Further, the connecting surface member 24c is formed into a substantially trapezoidal shape in plan view as shown in FIG. 4, and both edge portions which are upper and lower sides of the trapezoid are bent into a hook shape as shown in FIG. 24a and 24b are hooked. For this reason, even if the unit building 10 is deformed due to an earthquake or the like and a force is applied in a direction in which the interval between the support bolt portions 24a and 24b is increased, the expansion between the support bolt portions 24a and 24b is restricted by the restriction of the connecting surface material 24c. It can be suppressed.

  Further, as shown in FIG. 4, the connecting surface member 24c having a substantially trapezoidal shape in plan view is easily disposed in the gap 101 because a gap is formed between the connecting frame member 15 in the vicinity of the support bolt portion 24b due to the tapered shape. can do.

  Next, a detailed configuration in the vicinity of the support portion 23 of the reinforcing frame 2 will be described with reference to FIGS.

  As shown in FIG. 7, the support portion 23 provided at the lower end of the frame column 21 of the reinforcing frame 2 is formed in a state of being separated from the upper end surface of the foundation beam 16a as the foundation portion of the building unit 1A.

  The support 23 extends along the floor beam 13A as shown in FIG. 8 as viewed in the direction of arrows CC in FIG. 7 and FIG. 9 as viewed in the direction of arrows DD in FIG. Are mainly composed of a rectangular cylindrical base portion 23a and four leg portions 23b, 23c,... Extending downward from both side surfaces of the base portion 23a.

  Here, as shown in FIG. 7, one leg portion 23b is erected vertically, and the other leg portion 23c extends downward in a direction away from the foundation beam 16a. That is, the leg portions 23b and 23c are arranged so that the interval is widened downward from the base portion 23a.

  Moreover, these leg parts 23b and 23c have the structure isolate | separated from the projection parts 16c and 16c as a base part in which floor beams 13A and 13A are installed, as shown in FIG.

  Furthermore, the upper ends of these leg portions 23b and 23c are joined to the side surfaces of the base portion 23a by bolts 23e, and the lower ends are joined to the leg portions 23b and 23b by groove-shaped connecting members 23f as shown in FIGS. 23b (23c, 23c) is connected.

  Further, the communication member 23f is fixed by an anchor portion 23d embedded in the foundation floor 16b of the unit building 10, as shown in FIGS. As described above, the support portion 23 has an independent support structure separated from the foundation beam 16a and the projection portion 16c.

  Note that the local frame 3 interposed in the gap 102 has the same detailed configuration as that of the reinforcing frame 2, and thus the description thereof is omitted. That is, the short beam portion 32 of the local frame 3 has the same configuration as that of the frame beam 22 except that the short beam portion 32 is shorter than the frame beam 22 and is formed to have the same length as the joint frame material 15. Further, the column portion 31 corresponds to the frame column 21, the support portion 33 corresponds to the support portion 23, and the connecting portion 34 corresponds to the connecting portion 24.

  Next, a detailed configuration of a portion where the first gap 101 and the second gap 102 intersect will be described with reference to FIG. The location where the gaps 101 and 102 intersect is also the location where the corners of the four building units 1A, 1B, 1C, and 1D face each other.

  In these building units 1A, 1B, 1C, 1D, the corner pillars arranged at the intersections are omitted, and the orthogonal ceiling beams 12A, 12B are joined by the joining material 121, respectively. Yes. In addition, a connecting beam 122 spans the gap 102 between the ceiling beams 12A and 12A of the building units 1A and 1C (1B and 1D).

  Further, a frame beam 22 extends in the gap 101 along the ceiling beam 12A. The frame beam 22 extends from the frame column 21 in the longitudinal direction of the gap 101, and the divided beams 22a and 22a are disposed along the ceiling beams 12A and 12A (12A and 12A), respectively.

  Further, the split beams 22 a and 22 a are connected by a connecting portion 24 </ b> A in the vicinity of the bonding material 121. Since this connection part 24A has the structure substantially the same as the connection part 24 arrange | positioned in the vicinity of the frame pillar 21 mentioned above, detailed description is abbreviate | omitted.

  Next, the effect | action of the unit building 10 (10A, 10B) of this Embodiment is demonstrated.

  The unit building 10 of the present invention configured as described above is provided with frame columns 21 and 21 at both ends of the reinforcing frame 2 interposed in the first gap 101, and spans between the upper ends of the frame columns 21 and 21. The frame beam 22 and the ceiling beams 12A and 12A on both sides thereof are partially connected by connecting portions 24 and 24A. On the other hand, the support portion 23 of the reinforcing frame 2 is separated from the foundation beam 16a and the projection portion 16c of the building unit 1A or the like.

  For this reason, a part of the load acting on the unit building 10, particularly a horizontal load, can be received by the reinforcing frame 2 supported independently of the building unit 1A and the like. That is, since the support part 23 of the reinforcement frame 2 and the foundation beam 16a and the protrusion part 16c of the building unit 1A are separated, the reinforcement frame 2 and the building unit 1A are separated even if the unit building 10 is shaken by an earthquake or the like. The movement cancels out the force and the deformation of the entire unit building 10 is suppressed.

  Further, the ceiling beams 12A and 12A facing each other with the gap 101 between the building units 1A and 1B are connected by the connecting portions 24 and 24A at both ends in the axial direction of the ceiling beam 12A, and the shearing between the building units 1A and 1B is performed. The deformation in the width direction of the direction and the gap 101 is constrained. Here, the deformation in the shear direction between the building units 1A and 1B means that a relative displacement between the building units 1A and 1B occurs in the vertical direction or the axial direction of the ceiling beam 12A. Moreover, the deformation | transformation of the width direction of the clearance gap 101 means that the displacement of the direction where the distance between building units 1A and 1B approaches or leaves | separates arises.

  On the other hand, between the connecting portions 24 and 24A in the longitudinal direction of the gap 101, only the divided beams 22a and 22a are disposed along the ceiling beam 12A. Is not arranged along the axial direction of the ceiling beam 12A, the deformation in the shear direction and the width direction of the gap 101 is allowed.

  For this reason, since the ceiling beams 12A and 12A can be bent at places other than the locations where the connecting portions 24 and 24A are arranged, the ceiling beam 12A constituting the frame structure (frame structure) is connected to the connecting portions 24 and 24 when a large earthquake occurs. It is possible to prevent damage caused by bending at the non-rigid portion between 24 </ b> A and absorbing the earthquake energy by the deformation, causing the unit building 10 to collapse.

  In particular, when the frame beam 22 is formed by a pair of split beams 22a and 22a, and the split beams 22a and 22a are connected to the ceiling beams 12A and 12A of the building units 1A and 1B that face each other, the ceiling beam Since the restraining force by the reinforcing frame 2 with respect to 12A and 12A is reduced, the ceiling beams 12A and 12A can be bent to absorb the energy of the earthquake.

  Further, the connecting portions 24 and 24A are formed by a plurality of supporting bolt portions 24a and 24b arranged at intervals in the axial direction of the ceiling beam 12A and a connecting face member 24c spanned between the supporting bolt portions 24a and 24b. If comprised, the deformation | transformation of the width direction of the clearance gap 101 and the deformation | transformation of the shear direction between the building units 1A and 1B can be restrained by the connection surface material 24c spanned between the support bolt parts 24a and 24b.

  Further, if the plurality of support bolt portions 24a and 24b are connected by the connecting surface member 24c, the horizontal connection between the ceiling beams 12A and 12A is performed on the surface, and the unit building 10 can be operated even if a horizontal force is applied. Is less likely to twist.

  Then, by providing the connecting portion 24 in the vicinity of the joint portion between the high-strength column 11 and the ceiling beams 12A and 12B in this way, the ceiling beam 12A is deformed by the horizontal force transmitted through the connecting portion 24. Can be prevented.

  In addition, when the second gap 102 that is substantially orthogonal to the first gap 101 is formed, the local frame 3 that has the pillar portion 31 as the main material is interposed at both ends of the second gap 102. As a result, the local frame 3 can also receive a part of the load acting on the unit building 10.

  Further, by providing the leg portions 23b and 23c with the gaps extending downward from the base portion 23a, a bending moment is generated in the base portion 23a by the axial force of the leg portions 23b and 23c, and the frame column 21 ( If it is the local frame 3, the deformation | transformation of the pillar part 31) will be suppressed. That is, when a horizontal external force acts on the contact point between the frame column 21 and the frame beam 22 of the reinforcing frame 2 from the outside, a bending moment in the direction in which the base portion 23a is separated from the foundation beam 16a is generated in the support portion 23. Since the leg portion 23c extends downward in a direction away from the foundation beam 16a, a bending moment in the opposite direction that cancels the bending moment is generated by the axial force, and deformation is suppressed.

  And by suppressing the deformation | transformation of the reinforcement frame 2 (or local frame 3) in this way, the deformation | transformation of the building units 1A and 1B connected to it, and also the unit building 10 can also be suppressed.

  In addition, by connecting the ceiling beams 12A and 12A between the building units 1A and 1C (1B and 1D) with the frame beam 22 of the reinforcing frame 2 in the gap 101, the building units 1A and 1C (1B and 1D) are connected to each other. Can be reinforced.

  For example, if only normal building units are arranged, four columns 11 are erected in the space straddling the building units, but the reinforcing structure straddling the building units 1A, 1C (1B, 1D) is provided. By forming it, it becomes possible to form a large indoor space straddling between building units in which the pillars 11 do not exist.

  Moreover, even when the proof stress with respect to the vertical load or the horizontal load is insufficient due to the omission of the column 11, the insufficient proof strength can be easily compensated by causing the intermediate column 25 to stand at the intermediate portion of the reinforcing frame 2.

  Furthermore, if it is the pillar 11 of the building unit 1A, it will be arranged at a predetermined position of the corner, but if it is the intermediate pillar 25, the installation position can be easily moved, and the shape of the building unit 1A It is possible to make a free floor plan without being caught by.

  Since the unit building 10 having the gaps 101 and 102 can be adjusted without the size limit of multiples of the building unit 1A, the shape and floor plan of the unit building 10 can be freely designed. can do.

  Hereinafter, an example of a mode different from the above-described embodiment will be described with reference to FIGS. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In this example, a reinforcing frame 4 that is arranged in the same manner as the reinforcing frame 2 of the above embodiment but has a different detailed configuration will be described.

  The reinforcing frame 4 includes a frame beam 42 having a length substantially equal to the length of the gap 101 in plan view, frame columns 41 and 41 suspended from both ends of the frame beam 42, and lower ends of the frame columns 41 and 41. Support portions 43 and 43 provided respectively.

  As shown in FIG. 11, the frame pillar 41 of the reinforcing frame 4 is formed in a substantially H shape in plan view by a pair of parallel flanges 41a and 41a and a web 41b connecting the flanges 41a and 41a. It is erected without being connected to the pillars 11 of 11B. The upper end of the frame column 41 is closed by an upper plate 41c as shown in FIG. 11-13.

  A frame beam 42 extends from the upper end of the frame column 41 along the axial direction of the ceiling beams 12A and 12A. The frame beam 42 includes two split beams 42a and 42a extending along the ceiling beams 12A and 12A on both sides.

  As shown in FIGS. 12 and 13, the split beam 42 a is formed of a steel material having a substantially C shape in cross section. Further, the end portion of the split beam 42 a is in contact with the side surface of the upper end portion of the frame column 41.

  Then, as shown in FIG. 12, the upper plate 46a is fixed to the upper surface of the split beam 42a by welding or the like, and the upper plate 46a and the upper plate 41c protruding on the frame column 41 are joined by the bolt portion 46b. Is done. In addition, a projecting plate 41d projects from the web 41b of the frame column 41 to the lower side of the split beam 42a in parallel with the upper plate 41c, and the projecting plate 41d and the split beam 42a are joined by a bolt portion 46c.

  Further, the split beam 42 a and the ceiling beam 12 </ b> A are partially connected by the connecting portion 44 in the vicinity of the frame column 41. As shown in FIG. 11, the connecting portion 44 includes two bolt portions 44 a and 44 b that are spaced apart in the longitudinal direction of the gap 101. That is, one bolt part 44a is disposed at a position where the joining frame member 15 that joins the column 11 and the ceiling beam 12A is provided, and the other bolt part 44b extends from the bolt part 44a to the axis of the ceiling beam 12A. Arranged at positions spaced in the direction.

  Next, a detailed configuration in the vicinity of the support portion 43 of the reinforcing frame 4 will be described with reference to FIGS.

  As shown in FIG. 15, the support portion 43 provided at the lower end of the frame column 41 of the reinforcing frame 4 is formed in a state of being separated from the upper end surface of the foundation beam 16a as the foundation portion of the building unit 1A.

  The support 43 is parallel to the floor beams 13A and 13A, as shown in FIG. 16 viewed in the direction of arrows HH in FIG. 15 and FIG. 17 viewed in the direction of arrows II in FIG. And a pair of base portions 43a and 43a having a C-shaped cross section and leg portions 43b and 43c extending downward between the base portions 43a and 43a.

  Here, as shown in FIG. 15, one leg 43b is erected vertically, and the other leg 43c extends downward in a direction away from the foundation beam 16a. That is, the leg parts 43b and 43c are arranged so that the interval is widened downward from the base parts 43a and 43a.

  Further, these leg portions 43b and 43c have upper ends joined to the side surfaces of the base portions 43a and 43a by bolt portions 47c and 47d, respectively, and the lower ends are the foundation floors of the unit building 10 as shown in FIGS. It is fixed by an anchor portion 43d embedded in 16b. Thus, the support part 43 has an independent support structure separated from the foundation beam 16a.

  Even if the reinforcing frame 4 has a form different from the reinforcing frame 2 of the above-described embodiment, the same effect can be obtained.

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

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to the embodiment and the example, and the design change is within a range not departing from the gist of the present invention. Are included in the present invention.

  For example, in the above-described embodiment or example, the case where the reinforcing frame 2 (4) is disposed in the first gap 101 and the local frames 3 and 3 are disposed in the second gap 102 has been described. The configuration may be such that the reinforcing frame 2 (4) is disposed with the gap 102 as the first, and the local frames 3 and 3 are disposed with the gap 101 as the second. Furthermore, the gaps 101 and 102 can be only one.

  Moreover, in the said embodiment or Example, although the frame beam 22 and the short beam part 32 were arrange | positioned along the ceiling beam 12A of the 1st floor, it is not limited to this, The floor beam 13A of the 2nd floor is used. It can also be arranged along, or can be set to a beam height straddling the first floor ceiling beam 12A and the second floor floor beam 13A.

  Furthermore, in the said embodiment or Example, although the local frame 3 was installed in the both ends of the clearance gap 102, it is not limited to this, It can also be made to stand as an intermediate | middle pillar in the intermediate part of the clearance gaps 101 and 102. .

  In addition, the local frame 3 can be installed as an independent support structure at a corner portion of the building unit or an intermediate portion of the beam material even in a unit building where the reinforcing frame 2 is not disposed. The local frame 3 supported by the support portion 33 that is not directly joined to the upper surface of the foundation beam 16a to which the building unit is fixed moves differently from the building unit when a horizontal force such as an earthquake acts. In other words, when a horizontal force is applied due to an earthquake or the like, the short beam portion 32 of the local unit 3 is connected to the ceiling beam 12B and thus moves together. It moves differently. In addition, a reaction moment is generated by the axial force of the legs of the support portion 33 that is arranged so that the interval is widened downward from the base portion, and deformation of the entire unit building is reduced by reducing deformation of the local frame 3. Can be reduced.

10, 10A, 10B unit building 1A-1H building unit 101 (first) gap 102 (second) gap 11 pillar (column material)
12A, 12B Ceiling beam (beam material)
13A, 13B Floor beam (beam material)
14 fulcrum (foundation)
16a Foundation beam (foundation)
16c Protrusion (basic part)
2, 2A, 2B Reinforcement frame 21 Frame column 22 Frame beam 22a Split beam 23 Support portion 23a Base portion 23b Leg portion 24, 24A Connection portion 25 Intermediate column 3 Local frame 31 Column portion 32 Short beam portion 33 Support portion 34 Connection portion 4 Reinforcement frame 41 Frame column 42 Frame beam 42a Split beam 43 Support portion 43a Base portions 43b and 43c Leg portion 44 Connection portion

Claims (7)

A unit building composed of a plurality of adjacent building units, each of which is composed of a beam material and a column material,
Between the building units facing each other, a groove-shaped first gap extending in the axial direction of the beam material and straddling between the plurality of building units is formed,
A side-view substantially gate-like shape including a frame beam having a length substantially equal to the length of the first gap, a frame column hanging from both ends of the frame beam, and a support portion provided at a lower end of the frame column. A reinforcing frame is interposed in the first gap,
A unit building characterized in that the frame beam and the beam material parallel to the frame beam are partially connected, and the support portion is separated from a base portion on which the building unit is installed. A second gap substantially orthogonal to the first gap is formed in a continuous groove shape across a plurality of building units;
A local frame comprising a pillar part, a short beam part projecting from the upper end of the pillar part, and a support part provided at the lower end of the pillar part is interposed at both ends of the second gap,
2. The unit building according to claim 1, wherein the short beam portion and the beam material parallel thereto are partially connected, and the support portion is separated from a base portion on which the building unit is installed. .   The support portion includes a base portion on which the frame pillar or the pillar portion is erected, and a plurality of leg portions, and the plurality of leg portions are arranged so that a gap is widened downward from the base portion. The unit building according to claim 1, wherein the unit building is a unit building.   The frame beam is formed by a pair of divided beams arranged in parallel with a gap in the width direction of the first gap, and each divided beam is connected to the beam material facing each other. The unit building according to any one of claims 1 to 3.   The unit building according to any one of claims 1 to 4, wherein a column member of the building unit is omitted at a location where the corner portions of the four building units face each other.   The unit building according to claim 5, wherein at least one intermediate pillar is erected at an intermediate portion of the reinforcing frame. A local frame comprising a pillar part, a short beam part protruding from the upper end of the pillar part, and a support part provided at the lower end of the pillar part,
The support portion includes a base portion for erecting the column portion and a plurality of leg portions, and the plurality of leg portions are arranged so that a gap is widened downward from the base portion, and The local frame characterized in that the support part is separated from the foundation part on which the building unit is installed.

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