JP6363856B2 - building - Google Patents

Description

  The present invention relates to a building having a multi-layered main frame composed of columns and beams.

  Conventionally, in order to secure a wider internal space (floor area) of the building while avoiding the oblique line restriction stipulated in the Building Standards Law, there are known buildings whose corners are cut obliquely along the oblique line. . For example, in Patent Document 1, as an inclined roof that avoids oblique line restrictions, the end of the upper floor roof is drawn inward from the extension line of the outer wall of the lower floor, and the upper floor roof is extended from the upper end of the outer wall of the lower floor. A structure with diagonal members (climbing beams) attached to the end is shown. In general, in such a structure, diagonal materials are pinned around the upper edge of the lower floor outer wall (lower main frame) and around the edge of the upper floor roof (upper main frame), respectively. It is considered that they are joined by joining or rigid joining.

JP-A-63-1110340

  However, if both ends of the diagonal member are joined to the main frame by pin joint or rigid joint, the diagonal member functions as a resistance element against horizontal force like a brace, and when the horizontal force is applied. Will affect the behavior of the building and affect the structural design (structural calculation) of the building. It is also necessary to confirm the structural safety against the load acting on the joint part between the main frame and the diagonal member.

  An object of the present invention is to solve the above problems, and an object of the present invention is to provide a building in which the influence on the structural design is suppressed while avoiding the oblique line limitation.

  The present invention is a building having a multi-layer main frame having columns and beams, and the upper frame that forms the upper layer of the main frame is provided below the upper frame in the predetermined frame. A receding area that is set back with respect to the lower frame is formed, and in the receding area, diagonal members are placed between the upper and lower frames, and the upper frames are joined with diagonal materials. The lower frame has a lower layer diagonal joint to which the diagonal member is bonded, and the diagonal member is caused by the relative displacement between the upper layer and the lower frame. An axial force reduction mechanism is provided that reduces the axial force acting on the diagonal member body when the distance between the side diagonal member joint and the lower layer diagonal member joint changes.

  In the above building, the upper-layer frame is provided with a receding area that is receded from the lower-level frame in a predetermined structural surface, so that it becomes easy to avoid the oblique line limitation. In addition, diagonal materials are attached to the diagonal main body when the distance between the upper-layer diagonal joint in the upper frame and the lower diagonal joint in the lower frame changes due to the relative displacement between the upper and lower frames. An axial force reduction mechanism for reducing the acting axial force is provided. Therefore, when an interlayer deformation occurs in a building due to an earthquake or the like, it is possible to suppress the axial force reduction mechanism from acting and a large axial force acting on the diagonal body, while the upper side of the main frame It is possible to suppress stress concentration at the diagonal material joint and the lower layer side diagonal material joint. As a result, it is possible to suppress the oblique material from affecting the structural design (structural calculation) of the building.

  The diagonal member has an upper end portion joined to the upper-layer diagonal member joint portion and a lower end portion joined to the lower-layer oblique member joint portion, and the axial force reduction mechanism has at least the upper end portion and the lower end portion. It is preferable that the joining mechanism is provided on one side and the diagonal member body is joined to the main frame so as to be relatively movable. Even if the distance between the upper-layer diagonal joints in the upper frame and the lower-layer diagonal joints in the lower frame changes, the diagonal main body moves with respect to the main frame, causing a large axial force on the diagonal main body. Can be prevented from acting. As a result, it is possible to suppress the oblique material from affecting the structural design (structural calculation) of the building.

  Further, it is preferable that the joining mechanism is provided at the lower end portion of the diagonal member. Even if the joining mechanism of the lower end portion is damaged, the upper end portion of the diagonal member is maintained in a state of being joined to the upper frame. That is, at least the diagonal member is held in the upper frame and the diagonal member does not fall down, so it is easy to ensure safety.

  Further, it is preferable that the joining mechanism regulates the vertical movement of the diagonal member body with respect to the main frame and allows the horizontal movement. Since the vertical movement of the diagonal member is restricted by the joining mechanism, the vertical load of the diagonal member is supported by the main frame. In other words, when the diagonal members are attached to the main frame, the diagonal members are not in a floating state, but can be attached to the main frame (with the weight of the diagonal members attached). Good sex. Further, it is possible to stably support a long-term load that is a load of the diagonal member body and a load of a member supported by the diagonal member.

  The joining mechanism includes a fixed portion provided on the main frame and a movable portion connected to the fixed portion via a bolt and provided on the diagonal member body, and the bolt is inserted into the movable portion. It is preferable that a round hole is formed, a bolt is inserted into the fixed portion, and a long long hole is formed along the horizontal direction. Even in the case where the oblique material is attached with the inclination angle changed, it is advantageous that the fixing portion side is made into a long hole so that the members can be made common and the same accommodation can be achieved.

  The upper end of the diagonal member is pin-bonded to the upper frame, the lower end of the diagonal member is pin-bonded to the lower frame, and the axial force reduction mechanism An expansion / contraction mechanism that expands and contracts is preferable. When an interlayer deformation occurs in a building due to an earthquake or the like, the diagonal material expands and contracts by the expansion and contraction mechanism, so that a large axial force can be prevented from acting on the diagonal material body. It is possible to suppress the concentration of stress at the joint or the lower-layer-side diagonal material joint. As a result, it is possible to suppress the oblique material from affecting the structural design (structural calculation) of the building.

  Also, the lower end of the diagonal member can be joined to the middle part of the beam of the lower frame. Even if it is necessary to join the lower end of the diagonal to the middle part where the bending of the beam of the lower frame is likely to increase, it is possible to avoid stress concentration on this middle part, so the structural design of the building (structural calculation This is advantageous because it can suppress the influence on

  ADVANTAGE OF THE INVENTION According to this invention, the building which suppressed the influence on structural design can be provided, avoiding slanting line restrictions.

It is a figure which shows the external appearance of the building which concerns on embodiment of this invention, (a) is a perspective view, (b) is a side view of a building when the side of a building is assumed to be a predetermined composition surface. It is a side view which shows joining of the diagonal material which concerns on the 1st Embodiment of this invention, and an upper-layer frame and a lower-layer frame. It is sectional drawing which expands and shows the lower end part of the diagonal according to the first embodiment. It is a perspective view which expands and shows a lower fixed metal fitting. It is a side view which expands and shows the upper end part of the diagonal according to the first embodiment. It is a side view which shows joining of the diagonal material which concerns on 2nd Embodiment of this invention, and an upper-layer frame and a lower-layer frame. It is a side view which expands and shows the upper end part of the diagonal according to the second embodiment. It is sectional drawing along the VIII-VIII line of FIG. It is a figure which shows the building which concerns on 3rd Embodiment of this invention, (a) is typical side view, (b) is a top view of the expansion-contraction mechanism of diagonal materials, (c) is c of (b) It is sectional drawing along the -c line. It is a typical side view of the building concerning each embodiment of the present invention, (a) is a side view of the building concerning a 4th embodiment, (b) is a side view of the building concerning a 5th embodiment, (C) is a side view of the building concerning a 6th embodiment. It is a perspective view which shows the modification of the building which can apply each embodiment which concerns on this invention.

  Embodiments according to the present invention will be specifically described below with reference to the drawings. As shown in FIG. 1, a building 1A according to the first embodiment includes a multi-layer main frame composed of a steel frame ramen structure. Among the plurality of main frames, for example, the main frame forming the uppermost floor is the upper frame 3 and the main frame provided adjacent to the lower layer 3 is the lower frame 5. In the present embodiment, the main frame of the steel frame ramen structure will be described as an example, but a pin brace structure or a wooden main frame may be used.

  The upper frame 3 and the lower frame 5 are each provided with a column, a beam, and the like. In the following, a column win will be described as an example, but a beam win may be used. The upper frame 3 does not overlap the entire area of the ceiling surface of the lower frame 5 but is provided so as to be partially retracted from the edge of the lower frame 5. The upper part of the region formed by retreating the upper frame 3 with respect to the lower frame 5 is open, and serves as a region for easily avoiding the oblique line restriction stipulated in the Building Standard Law. Specifically, the building 1A projected onto the predetermined composition plane P, assuming a plane that becomes the predetermined composition plane P (see FIG. 1A) on the right side when the building 1A is viewed from the front. The side surface (see FIG. 1B) is formed with a region open on the left side of the upper frame 3. Hereinafter, this area is referred to as a backward area BA.

  As shown in FIG. 2, climbing beams (hereinafter referred to as “diagonal materials”) 6 </ b> A installed between the lower frame 5 and the upper frame 3 are arranged in the retreat area BA in consideration of oblique line restrictions. Yes. The diagonal member 6 </ b> A is basically composed of an oblique member body 12 made of an H-shaped steel, a lower fixed hardware 11 that joins the oblique member body 12 and a part of the lower frame 5, and the diagonal member body 12 and the upper layer frame 3. And an upper fixed hardware 13 for joining the parts. The lower fixed hardware 11 is joined to the middle portion (lower layer side diagonal joint) 5b of the lower beam 5a made of H-shaped steel, and the upper fixed hardware 13 is connected to the upper end (upper side diagonal joint) of the column 4 ) Pin-bonded to 4a.

  The lower fixed hardware 11 has a main body portion 11a (see FIGS. 3 and 4) bent in an L-shaped cross section, and the main body portion 11a is a contact piece attached to the flange 5c of the lower beam 5a with bolts 5d. 11b and a support piece 11c which is bent from the contact piece 11b and is erected substantially vertically. On the upper surface of the contact piece 11b, an auxiliary piece 11d is erected along with the support piece 11c, and a reinforcing rib 11e is provided between the support piece 11c and the auxiliary piece 11d.

  On the upper part of the support piece 11c, a joining piece 11f joined to the diagonal member body 12 is provided so as to protrude in the lateral direction (horizontal direction). The joining piece 11f is a rectangular plate provided along the vertical plane, and the reinforcing piece 11g is provided on the side surface along the horizontal plane. Long holes 11h are formed in the joining pieces 11f at positions above and below the reinforcing pieces 11g, respectively. The upper and lower long holes 11h are provided such that the longitudinal direction is along the horizontal direction.

  A protruding piece 12c protruding downward is formed at the lower end of the web 12a of the diagonal member body 12. The protruding piece 12 c is in contact with the joining piece 11 f of the lower fixed hardware 11. Further, a round hole 12e is formed in the protruding piece 12c so as to overlap the center of the long hole 11h of the joining piece 11f. The shaft portion of the bolt 12d is inserted into the long hole 11h of the lower fixed hardware 11 and the round hole 12e of the diagonal member body 12, and the nut member is screwed to the end portion of the shaft portion, whereby the diagonal member body 12 and The lower fixed hardware 11 is fastened. Torque management is performed when the bolts and nuts are fastened. When a predetermined force is applied, the projecting piece 12c slides with respect to the joint surface of the lower fixed hardware 11, and the lower end of the diagonal main body 12 is the lower frame. 5 is configured to move relative to the horizontal.

  The protruding piece 12c of the diagonal member 12 and the lower fixed hardware 11 correspond to the lower end 6a (see FIG. 2) of the diagonal member 6A. And the protrusion piece 12c which has the round hole 12e, the joining piece 11f which has the long hole 11h, and the volt | bolt 12d comprise the joining mechanism 14 which is one aspect | mode of an axial direction force reduction mechanism.

  As shown in FIG. 5, the upper end of the diagonal member body 12 (web 12 a) is attached to the upper fixed metal 13 by bolts. The upper fixed hardware 13 corresponds to the upper end portion 6b of the diagonal member 6A.

  In this building 1A, the upper end 6b of the diagonal 6A is joined to the upper end (upper diagonal joint) 4a of the column 4, and the lower end 6a of the diagonal 6A is the middle (lower lower diagonal) of the lower beam 5a. Bonded to the bonding portion 5b. When the upper frame 3 and the lower frame 5 are displaced relative to each other due to an earthquake or the like, the distance between the upper end 4a of the column 4 and the middle portion 5b of the lower beam 5a changes due to the relative displacement. At this time, when the force acting on the diagonal member 6A reaches a predetermined value, the lower end of the diagonal member body 12 is moved horizontally relative to the lower frame 5 by the joining mechanism 14, so that the diagonal member 6A has a large shaft. Directional force does not act, and it can suppress that stress concentrates on the intermediate part 5b of the lower layer beam 5a. As a result, it is possible to suppress the oblique material 6A from affecting the structural design (structural calculation) of the building 1A.

  Moreover, in this embodiment, the joining mechanism 14 is provided in the lower end part 6a of the diagonal material 6A so that the diagonal material body 12 may be joined to the lower frame 5 so as to be relatively movable. Therefore, even if an unexpected excessive horizontal force is applied and the joining mechanism 14 is damaged, the upper end portion 6b of the diagonal member 6A is maintained in the state of being joined to the upper layer frame 3, and the diagonal member 6A is attached to the upper layer frame 3. Since the held state is maintained and the diagonal member 6A does not fall down, safety is ensured.

  Further, the joining mechanism 14 is connected to the lower fixed hardware 11 (fixed portion) 11 fixed to the lower frame 5 and the lower fixed hardware 11 via a bolt 12d and a protruding piece (fixed to the diagonal member body 12). Movable part) 12c. A round hole 12e through which the bolt 12d is inserted is formed in the projecting piece 12c, and a bolt 12d is inserted through the joining piece 11f of the lower fixed hardware 11 and a long long hole 11h is formed in the horizontal direction. .

  The joining mechanism 14 is configured to restrict the vertical movement of the diagonal member body 12 with respect to the lower frame 5 and to allow the horizontal movement, and the vertical load of the diagonal 6 </ b> A is applied to the beam of the lower frame 5. Will be supported. Therefore, when the diagonal member 6A is attached to the lower frame 5, it is not necessary to keep the lower end of the diagonal member 12 floating, and the lower member 5 is attached (with the weight of the diagonal member 6A) attached. Therefore, workability is good. Further, it is possible to stably support a long-term load that is a load of the diagonal member 12 and a load of a member supported by the diagonal member 6A.

  Further, in the present embodiment, a long hole 11h is formed in the lower fixed hardware 11, and a round hole 12e is formed in the protruding piece 12c. Of course, even if the round hole 12e is formed in the lower fixed metal 11 and the long hole 11h is formed in the protruding piece 12c, the function as the axial force reduction mechanism is realized. However, when the long hole 11h is formed in the protruding piece 12c of the diagonal member 6A, it becomes difficult to change the inclination angle and install it in another place. This is because, if the inclination angle of the diagonal member 6A is changed, the longitudinal direction of the long hole 11h is inclined with respect to the horizontal direction, and application under the same conditions becomes difficult. For this reason, when the diagonal member 6A is installed at a plurality of locations having different inclination angles, it is difficult to share the members. On the other hand, in the present embodiment, since the elongated hole 11h is formed in the lower fixed hardware 11, even when the inclined member 6A is attached with the inclination angle changed, the member can be made common and the same fit can be achieved. It is advantageous. This is particularly effective in an industrialized house where members are standardized in advance.

  Further, the lower end portion 6a of the diagonal member 6A is joined to the intermediate portion 5b of the lower layer beam 5a, which tends to bend easily. However, since the diagonal member 6A is provided with the joining mechanism 14, it is possible to avoid stress concentration on the intermediate portion 5b of the lower beam 5a, and to affect the structural design (structural calculation) of the building 1A. This is advantageous because it can be suppressed.

  Next, a building 1 </ b> B according to the second embodiment will be described with reference to FIGS. 6, 7, and 8. Since the building 1B according to the second embodiment includes the same elements and structures as the building 1A according to the first embodiment, the same elements and structures are denoted by the same reference numerals and detailed. Description is omitted.

  As shown in FIG. 6, the retreat area BA is provided with an oblique member 6 </ b> B that is installed between the lower frame 5 and the upper frame 3 in consideration of the oblique line restriction. The diagonal member 6B includes the diagonal member body 22, the lower fixed metal member 21 that joins the diagonal member body 22 and a part of the lower frame 5, and the upper fixed metal member that joins the diagonal member body 22 and a part of the upper frame 3. 23. The lower fixed hardware 21 is welded to the diagonal member body 22, and is fixed to the flange 5c of the lower beam 5a with bolts.

  As shown in FIG. 7 and FIG. 8, the upper end of the diagonal member body 22 is fixed to the upper end portion 4 a of the column 4 via the upper fixed hardware 23. The upper fixed metal 23 is made of a steel plate that is curved in a substantially U-shaped cross section and is formed by bending one piece outward in the middle. That is, the upper fixed hardware 23 is formed between the fixed piece 23a that comes into contact with the upper end 4a of the column 4, the support piece 23b that comes into contact with the web 22a of the diagonal member body 22, and the fixed piece 23a and the support piece 23b. It has the bending piece 23c which has the function to bend in and out. The fixed piece 23 a is fixed to the diagonal member body 22 with bolts, and the fixed piece 23 a is fixed to the column 4.

  In the present embodiment, the axial force acting on the diagonal member body 22 is reduced by bending the bending piece 23c. That is, in the present embodiment, the upper fixed hardware 23 is the upper end portion 6b of the diagonal member 6B, and functions as the joining mechanism 15 that is one aspect of the axial force reduction mechanism.

  As described above, in the building 1B according to the present embodiment, the upper end portion 6b of the diagonal member 6B is joined to the upper end portion (upper layer side diagonal joint portion) 4a of the column 4, and the middle portion (lower layer side diagonal joint portion) of the lower layer beam 5a. ) 5b is joined to the lower end portion 6a of the diagonal member 6B. When the upper frame 3 and the lower frame 5 are relatively displaced due to an earthquake or the like, the distance between the upper end portion 4a and the intermediate portion 5b changes due to the relative displacement. At that time, since the bending piece 23c bends in the joining mechanism 15, a large axial force does not act on the diagonal member 6B, and it is possible to prevent stress from being concentrated on the intermediate portion 5b of the lower layer beam 5a. As a result, it can be suppressed that the diagonal 6B affects the structural design (structural calculation) of the building 1B.

  Further, in the present embodiment, the joining mechanism 15 is provided at the upper end portion 6b of the diagonal member 6B, and in this joining mechanism 15, the direction in which the bending piece 23c is allowed to bend is the horizontal direction. A configuration that restricts the movement of the diagonal member body 22 in the vertical direction and allows the movement in the horizontal direction is realized.

  Next, a building 1C according to the third embodiment will be described with reference to FIG. FIG. 9A is a schematic side view of the building 1C, FIG. 9B is a plan view showing the expansion / contraction mechanism of the diagonal member 6C, and FIG. 9C is a cross-sectional view taken along the line cc in FIG. . Since the building 1C according to the third embodiment includes the same elements and structures as the building 1C according to the first and second embodiments, the same elements and structures are denoted by the same reference numerals. Detailed description will be omitted.

  As shown in FIG. 9A, the retreat area BA is provided with a diagonal member 6C laid between the lower frame 5 and the upper frame 3 in consideration of oblique line restrictions. The diagonal member 6C includes an oblique member body 32, a lower end portion 6c that joins the oblique member body 32 and a part of the lower frame 5, and an upper end portion 6d that joins the oblique member body 32 and a part of the upper layer frame 3. It has. The lower end portion 6c is pin-bonded to the lower beam 5a, and the upper end portion 6d is pin-bonded to the portal frame portion 4b.

  The diagonal body 32 is divided into an upper end 6d side and a lower end 6c side, the upper body 32a on the upper end 6d side is a steel plate having a substantially U-shaped cross section, and the lower body 32b on the lower end 6c side is The steel plate is slidably in contact with the inside of the upper body 32a. Long holes 32c into which the shaft portions of the bolts 35 are inserted are formed in the pair of side walls facing the upper body 32a, and the shaft portions of the bolts 35 are inserted into the pair of side walls facing the lower body 32b. A round hole 32d is formed. The upper main body 32a and the lower main body 32b are integrated by being fastened by a bolt 35 and a nut 36. Torque management is performed when the bolts and nuts are fastened, and the upper body 32a and the lower body 32b are configured to slide relative to each other when a predetermined force is applied. The longitudinal direction of the long hole 32c is along the axial direction (longitudinal direction) of the diagonal body 32.

  When the distance between the upper-layer diagonal member joint 4a and the lower-layer diagonal member joint 5b changes due to the relative displacement between the upper frame 3 and the lower frame 5, the upper body 32a and the lower body 32b slide relative to each other. Then, the movement of the diagonal body 32 along the axial direction is absorbed. As a result, the axial force acting on the diagonal member body 32 is reduced. That is, in this embodiment, the long hole 32c of the upper main body 32a, the round hole 32d of the lower main body 32b, the bolt 35, and the nut 36 function as the expansion / contraction mechanism 16 that is one aspect of the axial force reduction mechanism.

  As described above, in the building 1C according to the present embodiment, when an interlayer deformation occurs in the building 1C due to an earthquake or the like, the expansion / contraction mechanism 16 functions and a large axial force acts on the diagonal member body 32. On the other hand, it is possible to suppress stress concentration at the gate-type frame portion (upper layer side diagonal member joint) 4b of the upper layer frame 3 and the lower layer beam (lower layer side diagonal member joint portion) 5a of the lower layer frame 5. As a result, it can be suppressed that the diagonal member 6C affects the structural design (structural calculation) of the building 1C.

  Next, a building according to another embodiment will be described with reference to FIG. Fig.10 (a) is a typical side view at the time of seeing the building 1D which concerns on 4th Embodiment from the predetermined structural surface P, FIG.10 (b) is the building which concerns on 5th Embodiment. FIG. 10C is a schematic side view when 1E is viewed from the predetermined plane P, and FIG. 10C is a schematic view when the building 1F according to the sixth embodiment is viewed from the predetermined plane P. It is a side view.

  As shown in FIG. 10 (a), in the building 1D according to the fourth embodiment, the upper end portion 6d of the diagonal member 6D is pin-joined to the portal frame portion 4b of the upper layer frame 3, and the lower beam 5a. The lower end 6c of the diagonal member 6D is joined. A joining mechanism (axial force reduction mechanism) 17 for reducing the axial force acting on the diagonal material body 42 is provided at the lower end portion 6c of the diagonal material 6D. The joining mechanism 17 is a structure that allows the diagonal member body 42 to move with respect to the lower frame 5. In this case, the movable mechanism means a structure by roller joining that is slidable along the joining surface of the main frame (for example, the lower frame 5).

  As shown in FIG. 10B, in the building 1E according to the fifth embodiment, the upper end 6d of the diagonal member 6E is pin-joined to the chianti beam 4c brought out from the portal frame 4b of the upper frame 3. The lower end portion 5c of the diagonal member 6E is joined to the lower frame 5. The lower end 6c of the diagonal member 6E is provided with a joining mechanism (axial force reducing mechanism) 17 for reducing the axial force acting on the oblique member body 42. The joining mechanism 17 lowers the oblique member body 42 to the lower layer. This is a structure that is movable with respect to the frame 5.

  Further, as shown in FIG. 10C, the building 1F according to the sixth embodiment is such that the upper end 6d of the diagonal member 6F is rigidly joined to the portal frame 4b of the upper frame 3, and the lower frame 5 is joined to the lower end 6c of the diagonal member 6F. A joining mechanism (axial force reduction mechanism) 18 for reducing the axial force acting on the diagonal material body 42 is provided at the lower end portion 6c of the diagonal material 6F. The joining mechanism 18 according to the present embodiment has a structure in which the diagonal member body 42 is relatively movable with respect to the lower frame 5.

  Although the present invention has been described above by taking the building according to each embodiment as an example, the present invention is not limited only to the above-described embodiment. For example, the diagonal members and the axial force reduction mechanism described in the above embodiments can be applied to the building 1G shown in FIG. Specifically, a gable main building is formed on the uppermost layer (the uppermost floor) of the building 1G, and the gate-shaped frame portion 4d formed inside the main building becomes a part of the upper-layer frame 3 and the gate-shaped frame portion 4d. Alternatively, the diagonal member 6G and the axial force reduction mechanism may be provided.

  Moreover, although embodiment which the lower end part of the diagonal member was joined to the upper part of the intermediate part of a beam was demonstrated, it is not limited to this. The lower end of the diagonal member only needs to be bonded to the lower frame, and may be bonded to the end of the beam or may be bonded to the upper part of the column, for example.

  Further, in the present invention, “the diagonal main body is movable relative to the main frame” includes parallel movement, rotational movement, or a combination of these, and the diagonal main body is joined to the upper layer side diagonal material. The mode which can be slidably moved along the joint surface of a part and a lower layer side diagonal material joint part, and the mode which an oblique material main body can approach and separate with respect to the joint surface may be sufficient.

  1A, 1B, 1C, 1D, 1E, 1F, 1G ... Building, 3 ... Upper frame (main frame), 4 ... Column, 4a ... Upper end of column (upper layer side diagonal joint), 5 ... Lower frame (main) Frame), 5a ... lower beam, 5b ... middle part of lower beam (lower layer side diagonal joint), 6A, 6B, 6C, 6D, 6E, 6F ... diagonal, 6a ... lower end of diagonal, 6b ... diagonal Upper end of the material, 11 ... lower fixed hardware (fixed part), 12c ... protruding piece (movable part), 14, 15, 17, 18 ... joining mechanism (axial force reduction mechanism), 16 ... telescopic mechanism (axial force) Reduction mechanism), BA ... retreat area, P ... predetermined surface.

Claims (5)

A building with a multi-layered main frame having columns and beams,
In a given aspect,
Of the main frame, the upper frame that forms the upper layer is provided by forming a receding region that is set back relative to the lower frame that is provided below the upper frame.
In the receding area, diagonal members are arranged between the upper frame and the lower frame,
The upper frame has an upper-layer diagonal material joint to which the diagonal material is bonded,
The lower frame structure has a lower layer side diagonal material joint to which the diagonal material is bonded,
The diagonal member is a shaft that acts on the diagonal member main body when the distance between the upper layer side diagonal member joint and the lower layer side diagonal member is changed due to relative displacement between the upper layer frame and the lower layer frame. Equipped with an axial force reduction mechanism that reduces directional force ,
The diagonal material has an upper end part joined to the upper layer side diagonal material joint part and a lower end part joined to the lower layer side diagonal material joint part,
The axial force reduction mechanism is a joining mechanism that is provided on at least one of the upper end portion and the lower end portion, and that the diagonal member body is joined to the main frame so as to be relatively movable,
The building is characterized in that the joining mechanism regulates the vertical movement of the diagonal member body with respect to the main frame and allows the horizontal movement . The building according to claim 1 , wherein the joining mechanism is provided at the lower end portion. The joining mechanism includes a fixed portion provided on the main frame, and a movable portion connected to the fixed portion via a bolt and provided on the diagonal body.
A round hole through which the bolt is inserted is formed in the movable part,
The building according to claim 1 or 2, wherein the bolt is inserted through the fixing portion, and a long hole is formed along a horizontal direction. A building with a multi-layered main frame having columns and beams,
In a given aspect,
Of the main frame, the upper frame that forms the upper layer is provided by forming a receding region that is set back relative to the lower frame that is provided below the upper frame.
In the receding area, diagonal members are arranged between the upper frame and the lower frame,
The upper frame has an upper-layer diagonal material joint to which the diagonal material is bonded,
The lower frame structure has a lower layer side diagonal material joint to which the diagonal material is bonded,
The diagonal member is a shaft that acts on the diagonal member main body when the distance between the upper layer side diagonal member joint and the lower layer side diagonal member is changed due to relative displacement between the upper layer frame and the lower layer frame. Equipped with an axial force reduction mechanism that reduces directional force,
The upper end of the diagonal member is pin-bonded to the upper frame,
The lower end of the diagonal member is pin-bonded to the lower frame,
The axial force reduction mechanism, building you being a telescopic mechanism for extending and retracting said slant member body in the axial direction. A building with a multi-layered main frame having columns and beams,
In a given aspect,
Of the main frame, the upper frame that forms the upper layer is provided by forming a receding region that is set back relative to the lower frame that is provided below the upper frame.
In the receding area, diagonal members are arranged between the upper frame and the lower frame,
The upper frame has an upper-layer diagonal material joint to which the diagonal material is bonded,
The lower frame structure has a lower layer side diagonal material joint to which the diagonal material is bonded,
The diagonal member is a shaft that acts on the diagonal member main body when the distance between the upper layer side diagonal member joint and the lower layer side diagonal member is changed due to relative displacement between the upper layer frame and the lower layer frame. Equipped with an axial force reduction mechanism that reduces directional force,
The lower end of the diagonal member is building you characterized in that it is joined to the middle portion of the beam of the lower Frames.

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