JP5827804B2 - Structure - Google Patents

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JP5827804B2
JP5827804B2 JP2011002276A JP2011002276A JP5827804B2 JP 5827804 B2 JP5827804 B2 JP 5827804B2 JP 2011002276 A JP2011002276 A JP 2011002276A JP 2011002276 A JP2011002276 A JP 2011002276A JP 5827804 B2 JP5827804 B2 JP 5827804B2
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frame
column
floor slab
steel
columns
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JP2012144862A (en
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関 光雄
光雄 関
勝人 大畑
勝人 大畑
恵美 牟田
恵美 牟田
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株式会社竹中工務店
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Description

  The present invention relates to a structure having a column beam frame.
  Patent Document 1 discloses a set having column beam frames that are erected in the column direction in plan view and that face each other, and a plurality of column columns that are erected between the column beams along the boundary between dwelling units. Housing has been disclosed. The inter-columns and the columns of the column-beam frame and the inter-columns are connected by a small beam.
  In a structure in which a column beam frame is erected on the outer periphery, such as an apartment house of Patent Document 1, the intercolumn and the column of the column beam frame are connected by a beam. It must be aligned with the column of the frame. That is, the position of the stud is constrained by the position of the column of the beam-column frame, or the position of the column of the beam-column frame is constrained by the position of the column, which is one factor hindering free structural design. .
JP 2006-37649 A
  In view of such facts, an object of the present invention is to provide a structure having a column beam frame that can increase the degree of freedom in structural design.
In the invention of the first aspect, a plurality of first column-beam frames arranged in opposition and composed of columns and beams, and a plurality of columns arranged between the first column-beam frames , composed of columns and beams, and A second column beam frame arranged so that an extended surface of the frame crosses the frame surface of the first column beam frame, and the structure surface of the first column beam frame and the second column beam frame So that the column is not disposed at a position where the extended surface of the structural plane intersects, and the force in the out-of-plane direction of the second column beam frame is transmitted in the in-plane direction of the first column beam frame. It is a structure in which the first column beam frame and the second column beam frame are connected only by a floor slab.
In the first aspect of the invention, since the first column beam frame and the second column beam frame are connected only by the floor slab, the column position of the first column beam frame relative to the in-plane direction of the first column beam frame and the It is not necessary to match the column position of the two-column beam frame. Therefore, the column position of the second column beam frame can be set without being restricted by the column position of the first column beam frame with respect to the in-plane direction of the first column beam frame. Since the column position of the first column beam frame can be set without being restricted by the column position of the second column beam frame with respect to the in-plane direction, the degree of freedom in structural design can be increased.
The second aspect of the invention is the first aspect of the invention, wherein the first column beam frame and the first column beam frame are arranged so that an extended surface of the structure of the second column beam frame is orthogonal to the surface of the first column beam frame. A second column beam frame is arranged.
In the invention of the second aspect , the first column beam frame and the second column beam against the seismic force in two orthogonal plane directions (the in-plane direction of the first column beam frame and the in-plane direction of the second column beam frame). It is possible to effectively resist the frame.
According to a third aspect of the present invention, in the first or second aspect of the invention, the first column beam frame is an outer frame and the second column beam frame is an inner frame.
In the invention of the third aspect , the force in the out-of-plane direction of the second column beam frame is transmitted in the in-plane direction of the first column beam frame arranged on the left and right of the second column beam frame. The force in the out-of-plane direction of the frame can be efficiently transmitted in the in-plane direction of the first column beam frame.
  Since this invention was set as the said structure, the structure which has a column beam frame which can raise the freedom degree of a structural design can be provided.
It is a perspective view showing a structure concerning an embodiment of the present invention. It is the top view and front view which show the structure which concerns on embodiment of this invention. It is side sectional drawing which shows the floor slab which concerns on embodiment of this invention. It is a top view which shows the modification of the structure based on embodiment of this invention. It is a top view which shows the modification of the structure based on embodiment of this invention. It is a top view which shows the modification of the structure based on embodiment of this invention. It is a top view which shows the modification of the structure based on embodiment of this invention. It is a front view which shows the composite pillar which concerns on embodiment of this invention. It is a side view which shows the modification of the structure based on embodiment of this invention.
Embodiments of the present invention will be described with reference to the drawings. In this embodiment, an example is shown in which the structure of the present invention is applied to a frame structure that constitutes a building of an apartment house. However, the structure of the present invention is a building for various uses such as a hospital or a geriatric health facility. The present invention can be applied to the structural body structure.
First, the structure which is embodiment of this invention is demonstrated.
  As shown in the perspective view of FIG. 1, the plan view of FIG. 2A, and the front view of FIG. 2B, a structure 10 as a frame structure that constitutes a building of an apartment house is provided on the ground 12. It is built on the reinforced concrete foundation 14 made.
  The structure 10 having a steel structure is constructed of an outer frame 16 as a pair of first columnar beams standing on the foundation 14 and arranged facing each other, and an outer frame 16 standing on the foundation 14 and arranged on the outer frame 16. An inner frame 18 serving as a second column beam frame is provided between the pair of outer frames 16 adjacent to each other. Adjacent inner frames 18 are arranged to face each other. Further, the inner frame 18 is arranged so that the extended surface of the surface is substantially orthogonal to the surface of the outer frame 16 in plan view.
  The outer frame 16 is a column beam frame in which pillars 20 made of H-section steel arranged substantially vertically and beams 22 made of H-section steel arranged substantially horizontally are assembled in a lattice pattern. The beam 22 is joined by butt welding. The inner frame 18 is a column beam frame in which pillars 24 made of H-section steel arranged substantially vertically and beams 26 made of H-section steel arranged substantially horizontally are assembled in a lattice pattern. The beam 26 is joined by butt welding.
  The columns 24 of the inner frame 18 facing each other are connected by a connecting beam 28 made of H-shaped steel. The column 24 and the connecting beam 28 are joined by butt welding. In addition, a floor slab 32 that forms a living portion 30 upward is installed on the beam 26 of the inner frame 18 that is adjacent to and opposed to the beam 26. The floor slab 32 is formed by placing concrete on a plurality of half precast floor boards that are laid and arranged on the adjacent beams 26 of the inner frame 18, and is supported by the beams 26 and the connecting beams 28. The floor slab 32 may be formed by other methods.
  As shown in the side sectional view of FIG. 3 (a), the reinforced concrete floor slab 34 constituting the balcony of the building is connected to the beam 22 of the outer frame 16 and the connecting beam 28 that connects the columns 24 of the inner frame 18. It is erected. The floor slab 34 is formed integrally with the floor slab 32. Thereby, the pillar 24, the floor slab 32, and the connecting beam 28 of the inner frame 18 are connected to the column 20 and the beam 22 of the outer frame 16 only by the floor slab 34. That is, the outer frame 16 and the inner frame 18 are connected to the floor slab 34 so that the force in the out-of-plane direction of the inner frame 18 generated in the inner frame 18 is transmitted to the outer frame 16 in the in-plane direction of the outer frame 16. Just connected.
  Next, the operation and effect of the embodiment of the present invention will be described.
  For example, in the case of a structure in which the outer frame 16 and the inner frame 18 are connected by a beam member, the position of the column 20 of the outer frame 16 with respect to the in-plane direction of the outer frame 16 (hereinafter referred to as “X direction”), and the inner frame The positions of the 18 pillars 24 must be matched. On the other hand, in the structure 10 of the present embodiment, as shown in FIG. 2A, the outer frame 16 and the inner frame 18 are connected only by the floor slab 34, so the outer frame 16 in the X direction is connected. It is not necessary to match the position of the pillar 20 with the position of the pillar 24 of the inner frame 18.
  Therefore, the position of the column 24 of the inner frame 18 can be set without being constrained by the position of the column 20 of the outer frame 16 with respect to the X direction, and the living part constructed between the adjacent inner frames 18 facing each other. It is possible to freely set the layout of 30 units. For example, the inner frame 18 can be arranged as shown in the plan views of FIGS. Further, the position of the column 20 of the outer frame 16 can be set without being restricted by the position of the column 24 of the inner frame 18 with respect to the X direction, and the column 20 of the outer frame 16 is suitable for the structure and the landscape. Can be set to placement. For example, as shown in the plan view of FIG. 6, the pillars 20 of the outer frame 16 can be arranged. That is, the degree of freedom in structural design can be increased.
  Further, the intermediate pillars 18 (the pillars 24 arranged on the inner side among the plurality of pillars 24 constituting the inner frame 18) are in the in-plane direction of the inner frame 18 (hereinafter referred to as “Y direction”). Since it should just arrange | position so that it can resist with respect to the seismic force of one direction, the arrangement | positioning freedom degree of the stud 24 becomes high. For example, if the beam 26 of the inner frame 18 is supported so as not to have a long span by a large number of pillars 24, the rigidity of the beam 26 is increased, so that the vibration of the floor slab 32 supported by the beam 26 can be reduced. it can.
  Further, since the outer frame 16 and the inner frame 18 are only required to resist the seismic force in one direction (the outer frame 16 is in the X direction and the inner frame 18 is in the Y direction), the outer frame 16 and the inner frame 18. It is possible to achieve an effective structural cross-sectional arrangement (a rectangular structural cross-sectional arrangement having a long side in the direction of the target seismic force) with respect to the bending load acting on the columns 20 and 24 of the above.
  Further, since the outer frame 16 mainly bears the force in the X direction generated in the inner frame 18, the beam formation of the connecting beam 28 connecting the adjacent inner frames 18 can be reduced or eliminated. it can. Thereby, the high sash of the surface which faces the outer frame 16 side in the dwelling unit of the living part 30 constructed between the adjacent inner frames 18 can be achieved.
  Further, since the inner frame 18 is arranged so that the extended surface of the frame is substantially orthogonal to the surface of the outer frame 16 in plan view, the seismic force in two orthogonal planes (X direction and Y direction). On the other hand, the outer frame 16 and the inner frame 18 can be effectively resisted.
  In addition, since the inner frame 18 is disposed between the pair of outer frames 16 arranged to face each other, the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 is reduced. It is transmitted to the outer frame 16 arranged on the left and right. Thereby, the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 can be efficiently transmitted to the outer frame 16.
  Further, since the columns 24 of the inner frame 18 adjacent to each other are connected by the connecting beam 28, the frame 24 is formed by the column 24 of the inner frame 18 and the connecting beam 28, and this frame is subjected to the seismic force in the X direction. Can be made to resist. For example, about 10% of the total seismic force in the X direction acting on the structure 10 can be borne by the frame constituted by the columns 24 and the connecting beams 28 of the inner frame 18. Further, by providing the connecting beam 28, the inner frame 18 can be easily built. Furthermore, the buckling length of the column 24 with respect to the horizontal load in the X direction can be shortened, and the buckling strength can be increased.
  The embodiment of the present invention has been described above.
  As described in the embodiment of the present invention, the outer frame 16 and the inner frame 18 are configured such that the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 is external to the outer frame 16. What is necessary is just to be connected only by the floor slab 34 so that it may be transmitted to the in-plane direction (X direction) of the frame 16. FIG. That is, at least one of the outer column 24 of the inner frame 18 (the column 24 arranged outside the plurality of columns 24 constituting the inner frame 18), the connecting beam 28, and the floor slab 32, and the outer frame 16 All that connects at least one of the column 20 and the beam 22 need only be connected by the floor slab 34 alone. For example, a configuration in which the inner frame 18 and the floor slab 34 are not directly joined to each other but the inner frame 18 and the floor slab 34 are connected via the connecting beam 28 or the floor slab 32 is also possible. 18 is connected only by the floor slab 34 ”.
  Further, some of the inner frames 18 among the plurality of inner frames 18 may be connected to the outer frame 16 by beam members. Thereby, the rigidity of the floor slab 34 in the vicinity where the beam member is provided can be reduced. Further, when the outer frame 16 is erected after the plurality of inner frames 18 are first erected, the outer column of the inner frame 18 is secured by a temporary member such as an angle member in order to ensure the accuracy of the construction of the outer frame 16. The state where 24 is connected to the outer frame 16 is included in "the outer frame 16 and the inner frame 18 are connected only by the floor slab 34".
  Further, in the embodiment of the present invention, the example in which the columns 24 of the adjacent inner frame 18 that are adjacent to each other are connected by the connecting beam 28, but the X-direction force generated in the inner frame 18 is applied only to the outer frame 16. If the load can be sufficiently paid, the connecting beam 28 may be omitted.
  In the outer frame 16 and the inner frame 18 shown in the embodiment of the present invention, the inner frame 18 is disposed adjacent to the outer frame 16, and the extension surface of the inner frame 18 intersects the surface of the outer frame 16. It suffices if they are arranged so as to. For example, a planar arrangement of the outer frame 16 and the inner frame 18 as shown in the plan views of FIGS. 7 (a) to (d) may be used, or the outer frame as shown in FIGS. 7 (a) to (d). The planar arrangement of the frame 16 and the inner frame 18 may be freely combined.
  In the embodiment of the present invention, the example in which the floor slab 34 is installed on the beam 22 and the connecting beam 28 of the outer frame 16 is shown (see FIG. 3A). 20, the end of the floor slab 34 may be joined, and the end of the floor slab 34 may not be joined directly to the beam 22 of the outer frame 16. In this way, the height of the floor slab 34 can be freely set without being restricted by the height of the beam 22 of the outer frame 16, and the degree of freedom in structural design of the outer frame 16 and the inner frame 18 can be increased. It can be further increased. When it is not expected to sufficiently transmit the X-direction force generated in the inner frame 18 to the column 20 of the outer frame 16, as shown in the side sectional view of FIG. What is necessary is just to connect the edge part of the floor slab 34 with the force transmission members 36, such as concrete, a brace, and a steel plate.
  Further, in the embodiment of the present invention, an example in which the structural type of the outer frame 16 and the inner frame 18 is a steel structure is shown, but the outer frame 16 and the inner frame 18 can be various structural types. For example, the outer frame 16 and the inner frame 18 may be reinforced concrete, steel reinforced concrete, or wooden. Further, the columns 20 and 24 of the outer frame 16 and the inner frame 18 and the beams 22 and 26 are members having shape steel and reinforced concrete integrated with the shape steel web (hereinafter referred to as “concrete / section steel integrated column member”). Or “concrete / section steel integrated beam member”).
  More preferably, the inner frame 18 is made of steel, and the columns 20 and beams 22 of the outer frame 16 are concrete / section steel integrated column members and concrete / section steel integrated beam members. In this way, the rigidity and fire resistance of the columns and beams can be improved as compared to steel columns and steel beams. Further, the buckling strength against column buckling and beam lateral buckling can be increased.
  The outer frame 16 and the inner frame 18 are preferably made of steel. In this way, the outer frame 16 and the inner frame 18 can be reduced in weight, and the seismic force acting on the outer frame 16 and the inner frame 18 can be reduced. Therefore, the columns of the outer frame 16 and the inner frame 18 can be reduced. The cross sections of the structures 20 and 24 and the beams 22 and 26 can be reduced. Thereby, the space of the residence part 30 can be widened.
  In the embodiment of the present invention, the example in which the columns 20 and 24 of the outer frame 16 and the inner frame 18, and the beams 22 and 26 and the connecting beam 28 are joined by butt welding is shown. If the joining strength is obtained, the pillars 20 and 24 and the beams 22 and 26 and the connecting beam 28 may be joined using other methods (for example, crimping joining and bolt joining using a PC steel rod). In the case of using crimp bonding or bolt bonding using a PC steel rod, the columns 20, 24, the beams 22, 26 and the connecting beam 28 can be efficiently combined without performing complicated operations such as welding and concrete placing. Can be joined. Further, the column beam joining work can be performed without using a skilled worker such as a welder.
  Further, in the embodiment of the present invention, the example in which the balcony is configured by the floor slab 34 is shown, but the corridor of the building may be configured by the floor slab 34. By configuring the balcony or hallway with the floor slab 34, the balcony or hallway can be used as a connection structure of the outer frame 16 and the inner frame 18.
  Of the plurality of inner frames 18 shown in the embodiment of the present invention, the inner frame 18 arranged along the outer periphery of the structure 10 in plan view (for example, the rightmost in FIG. 2A). The inner frame 18 arranged on the left side, the outer pillar 24 of the inner frame 18) arranged on the leftmost side, and the outer frame 16 may be connected by a beam member. Thereby, the integration as the whole structure 10 can be improved, and this beam member can be used as a base of the outer wall.
  Moreover, the pillar 20 of the outer frame 16 shown in the embodiment of the present invention may be a composite pillar. Thereby, the bending proof stress and bending rigidity of a X direction can be enlarged. Further, the column 20 having a large bending strength and bending rigidity in the X direction can be configured by a combination of small parts.
  As the composite pillar, for example, as shown in the front view of FIG. 8, in addition to the ladder-shaped composite pillar 20 in which a plurality of standing H-shaped steels 38 are connected by a section steel 40, a plurality of standing pillars are provided. Composite pillars that connect H-shaped steels with braces and panels. Further, for example, a plurality of standing H-section steels may be arranged at intervals without being connected by members such as a section steel, a brace, and a panel.
  Moreover, you may provide an earthquake-resistant member in the construction surface of the inner frame 18 shown by embodiment of this invention. Thereby, the resistance force of the inner frame 18 with respect to the seismic force in the Y direction can be increased. Examples of the earthquake resistant member include a steel brace, a steel plate earthquake resistant wall, a corrugated steel earthquake resistant wall, a steel damping brace, a concrete earthquake resistant wall with a steel frame, a damper, and a concrete earthquake resistant wall. Use of a steel brace, a steel plate earthquake resistant wall, a corrugated steel earthquake resistant wall, and a steel damping brace is preferable because the inner frame 18 can be reduced in weight.
  By providing a seismic member in the surface of the inner frame 18, in addition to the resistance of the inner frame 18, when the seismic force in the Y direction acts on the inner frame 18, the shear rigidity or seismic material given by the seismic member Due to the energy absorption property of, it can exhibit earthquake resistance. The side view of FIG. 9 shows an example in which corrugated steel earthquake resistant walls 42 and steel braces 44 are alternately arranged in the vertical direction on the surface of the inner frame 18 of the structure 10. ing.
  In addition, for example, concrete shear walls are constructed on the construction surfaces of all layers located on the left and right of the inner frame 18 to form multi-story seismic walls, and a boundary structure is used to connect the multi-story seismic walls. May be.
  In addition, for example, a dry wall may be installed on the surface of the inner frame 18 so that the layout of the living unit 30 can be changed when the structure 10 is repaired. For example, if a seismic wall is installed on the structural surface located on the left and right of the inner frame 18 and a dry wall is installed in the center, the dry wall can be demolished during refurbishment to create a passage (inside corridor). As described above, the structure 10 according to the present embodiment has a high degree of freedom in the arrangement of the intermediate pillars 24 of the inner frame 18. It is also possible to further increase the degree of freedom in changing the layout of the dwelling unit 30.
  As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment at all, Of course, in the range which does not deviate from the summary of this invention, it can implement in a various aspect.
10 Structure 16 Outer frame (first column beam frame)
18 Inner frame (second column beam frame)
34 Floor slab

Claims (3)

  1. A first column beam frame arranged oppositely and composed of columns and beams ;
    A plurality of second column beams arranged between the first column beam frames , which are composed of columns and beams, and are arranged so that the extended surfaces of the respective column surfaces intersect with the surface surfaces of the first column beam frames. The frame,
    With
    A portion where a column is not disposed at a position where the construction surface of the first column beam frame and the extended surface of the second column beam frame intersect;
    The first column beam frame and the second column beam frame are connected only by the floor slab so that the out-of-plane force of the second column beam frame is transmitted in the in-plane direction of the first column beam frame. Structure.
  2.   2. The first column beam frame and the second column beam frame are arranged so that an extension surface of the frame surface of the second column beam frame is orthogonal to the surface of the first column beam frame. The structure described in 1.
  3.   The structure according to claim 1 or 2, wherein the first column beam frame is an outer frame and the second column beam frame is an inner frame.
JP2011002276A 2011-01-07 2011-01-07 Structure Active JP5827804B2 (en)

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JP5827804B2 true JP5827804B2 (en) 2015-12-02

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6274792B2 (en) * 2013-09-10 2018-02-07 大和ハウス工業株式会社 Building ramen frame
JP2015155630A (en) * 2014-02-21 2015-08-27 徳治 河合 Renovation method for building, and building

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* Cited by examiner, † Cited by third party
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JPH0528294B2 (en) * 1986-11-25 1993-04-23 Shimizu Construction Co Ltd
JPH0445633B2 (en) * 1987-12-22 1992-07-27 Mitsui Constr
JPH08254025A (en) * 1995-03-17 1996-10-01 Shimizu Corp Multiple dwelling house
JP4520242B2 (en) * 2004-07-29 2010-08-04 積水ハウス株式会社 Frame structure of apartment house

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