JP4993597B2 - Tube type seismic frame - Google Patents

Description

  The present invention relates to a tube-type seismic frame that exhibits the characteristics of a tube structure even in a high-rise building with a small ratio of a short side to a long side such as a laminar shape or a plate shape.

  In the tube structure, a large number of columns are arranged in the periphery on the plane of the structure, forming a huge cylinder as a whole structure, causing the cylinder to bend and deform in the event of an earthquake, resulting in an overall bending moment (falling moment). Since it is a structural form to bear and has the advantage that the earthquake-resistant wall can be absent from the space, it is often adopted for high-rise buildings (see Patent Documents 1 to 5).

  The tube structure is roughly classified into a type used alone and a type used together with the core, and in the case of a single type, there is a type in which a plurality of tube structures are arranged in an overlapping manner (see Patent Documents 1 and 4). According to the form in which the tube is further stacked inside the outer tube, the number of cylinders that bear the bending moment increases, and in addition to the improvement in seismic resistance, the core becomes unnecessary and the degree of freedom in plan planning is increased. There is an advantage to go up.

JP 63-156147 A (Claim 1, FIG. 1) JP-A-5-263473 (Claim 1, paragraphs 0009 to 0013, FIG. 5) JP-A-8-158695 (Claim 1, paragraphs 0016 to 0019, FIG. 1) JP 2000-328652 A (Claim 3, paragraphs 0017 to 0019, FIGS. 2, 4, and 5) JP 2006-138127 A (Claim 1, paragraphs 0017 to 0038, FIG. 1, FIG. 10, FIG. 11)

  However, in a high-rise building with a laminar or plate-like shape, it is difficult to ensure a sufficient width between the inner and outer tubes due to shape (width) restrictions, so a multiple tube structure is used. There are circumstances that are difficult to do. For example, in a structure with a laminar flat surface, when two tubes are stacked so that a part of the inner tube is parallel to the outer tube, both tubes are easy to approach each other. The plan of the floor may be extremely limited.

  In view of the above background, the present invention proposes a tube-type seismic frame in a form that exhibits the advantages of a structure in which a plurality of tube frames are combined even in a high-rise building with a laminar or plate-like shape.

  The tube-type seismic frame according to the first aspect of the present invention has a plane in which a plurality of plane shapes are partially overlapped with each other, and columns are arranged along the outline lines of the respective plane shapes. It is a constituent requirement that the columns arranged along the lines form a tube frame for each of the planar shapes.

  Two or more plane shapes are combined, and the shape formed by the combination forms the plane (slab) of the structure (building) including the earthquake-resistant frame. Even when three or more plane shapes are combined, two plane shapes are basically overlapped, and the plane of the structure has a shape in which a plurality of polygons and other figures partially intersect. The planar shape includes a circle or the like regardless of whether it is a polygon. The earthquake-resistant frame is composed of two or more tube frames configured for each planar shape, and a plurality of tube frames are combined while overlapping each other.

  Each tube frame overlaps in an area where a plurality of planar shapes intersect, and a part of the two tube frames that define the overlapping area constitutes a closed small tube frame that is separate from each tube frame. A part (one side) of the small tube frame forms a plane that is separate from the tube frame inside the two planes that include the small tube frame. The space between the plane shape (tube frame) and the small tube frame is not divided. The small tube frame formed in a region where a plurality of planar shapes overlap is arranged at the center or a position along the center in the entire plane of the structure.

  The tube-type seismic frame of claim 1 can be formed by sliding one planar shape with respect to the other planar shape from the state where the two planar shapes overlap when the plane of the structure has two planar shapes. Become a shape. Therefore, unlike a frame in which tube frames are arranged in multiple concentric circles (concentric angles), a tube frame having a small scale is not completely surrounded by a tube frame having a larger scale. Since the columns constituting the tube frame are arranged on the outline of each planar shape, they are also arranged on a line that divides a region where the planar shapes overlap. Since the planar shapes are arranged on the boundary of the overlapping area and the pillars that make up part of the tube frame form a small tube frame, the small tube frame and the tube frame that divides the flat surface are concentric (concentric angle). Can never be combined.

  When a plurality of tube frames are arranged in multiple concentric circles (concentric angles) as shown in FIG. 1- (b), a small-scale tube frame is placed inside a relatively large-scale outer tube frame. In the short side direction of the plane, spaces A and B are formed on both outer sides of the space C formed by the inner tube frame. The formation of spaces on both outer sides of the space C is the same in the long side direction.

  The inner tube frame is arranged at an arbitrary position with respect to the outer tube frame in both the short side direction and the long side direction, but the width o of the space O formed by the outer tube frame is constant, The width c of the space C formed by the inner tube frame is also constant.

  On the other hand, the sum (a + b) of the width a of the space A formed on one side of the space C and the width b of the space B formed on the other side is constant regardless of the position of the inner tube frame relative to the outer tube frame. Therefore, if the width a of the space A is increased, the width b of the space B is inevitably reduced, and as a result, a free plane plan in the space B may be sacrificed. This is easily encountered when the planar shape of the structure is lame or plate-like. In the case of a plate shape, the length c of the construction surface facing the short side direction of the inner tube frame becomes extremely short, so that the tube frame does not function as an earthquake resistant frame in that direction.

  When the width of one of the space A and the space B is increased, the decrease in the width of the other is determined by the width c of the space C with respect to the width o of the space O. The planar shape and the widths a and b of the spaces A and B formed therebetween are restricted by the scale of the two tube frames.

  On the other hand, in claim 1, as shown in FIG. 1- (a), a space D is formed on the inner side (inside the small tube frame) of any one of the tube frames constituting the small tube frame, and a space E, Although F is formed, the width of one of the outer spaces E and F is not restricted by the width of the other.

  When the plane of the structure is divided into two horizontal directions, the short side direction (x direction) and the long side direction (y direction), in the case of FIG. 1- (a), the entire plane formed by overlapping two tube frames is In the short side direction, the space is divided into a space D formed by the small tube frame and spaces E and F on both sides thereof. The same applies to the long side direction.

  1- (a) and (b) are compared, the small tube frame in (a) corresponds to the inner tube frame in (b), so space E and space F in (a) are respectively (b) Corresponds to space A and space B in FIG. Here, (a) and (b) are common in that the plane of the structure is divided into three in the short side direction and the long side direction. However, in (b), as described above, the width a of the space A and the width b of the space B may not be the same depending on the relative position of the inner tube frame with respect to the outer tube frame, and one may be larger than the other. is there.

  On the other hand, in the case of FIG. 1- (a), the small tube frame is formed in the overlapping portion of the two tube frames, and if the two tube frames have the same size, the center of the small tube frame is always the structure. Therefore, the width e of the space E and the width f of the space F are the same regardless of the size of the small tube frame, that is, the size (width d) of the space D (e = f), The width of one of the space E and the space F does not become larger or smaller than the width of the other.

  Therefore, since the space D formed by the small tube frame does not deviate to either side in the plane of the structure, one of the spaces E and F formed outside the space D is restricted by the scale of the tube frame. It is possible to freely adjust the widths e and f of both the spaces E and F and to plan a free plane.

  In the case of FIG. 1- (a), the small tube frame 5 forming the space D corresponding to the space C in (b) is a part of the tube frames 3 and 4 forming the planar shapes 1 and 2, and the short side direction In addition, since the structural surfaces of the tube frames 3 and 4 also function as seismic frames in the long side direction, the function of the small tube frame 5 as the seismic frame in the short side direction is as shown in FIG. It is not lowered by being restricted by the shape (length in the short side direction).

  Further, since the planar shape of the space D formed by the small tube frame is determined by the planar shape of one and the other tube frame, the two planar structures of the spaces E and F outside the space D also constitute the small tube frame. Can be freely determined by the planar shape. For example, when the planar shapes of both the tube frames are both square (rectangular), the planar shape of the space D formed by the small tube frame is a rectangular shape, and the planar shapes of the spaces E and F formed on the outside thereof. Is L-shaped with a part of the square missing. In an actual structure, a plurality of planes shown in FIG. As described above, the small tube frame 5 forms the x- and y-direction planes different from the tube frames 3 and 4 inside the two planar shapes 1 and 2 that include the small-frame frame 5. Since the composition surface is not continuous with the other composition surfaces in each of the planar shapes 1 and 2, the L-shaped spaces E and F are not subdivided.

  As described above, in claim 1, the spaces E and F formed outside the space D formed by the small tube frame are not affected by the scale of the tube frame, and a free plane plan for both the spaces E and F can be obtained. Therefore, even in a high-rise building with a laminar or plate shape in plan view, a plurality of tube frames can be combined, and the advantages of a structure combining a plurality of tube frames can be exhibited. In particular, if the planar shape is a square shape, a laminar plane can be formed simply by changing one planar shape from a shape obtained by superimposing two planar shapes.

  When two tube frames are doubled in a concentric circle (concentric angle) shape as shown in Fig. 1- (b), the scale (planar area) of the outer tube frame is determined by the plane (floor area) of the structure. The scale (plane area) of the inner tube frame is always smaller than that of the outer tube frame. Further, in order to secure a space (the spaces A and B) having a certain width or more between the inner tube frame and the outer tube frame, the inner tube frame is made smaller in size than the outer tube frame. There is a need.

  The stiffness and proof strength of the seismic frame composed of two tube frames is the sum of the rigidity and proof strength of two tube frames of different scales. In the case of Fig. 1- (b), the scale of the inner tube frame is outside. Since the size of the tube frame is smaller than the size of the tube frame, the size is smaller than the case where two tube frames of the same scale coexist.

  On the other hand, since there is no distinction between the inner side and the outer side in the tube frame in claim 1, both tube frames can be made the same scale even when the earthquake resistant frame is constituted by two tube frames. In the case of the earthquake-resistant frame shown in FIG. 1- (b), the two tube frames are independent from each other and are connected only by the slab, but in the case of (a) (in claim 1), Since the small tube frame corresponding to the inner tube frame in (b) is connected to the outer tube frame by a beam and a column in addition to the slab, the seismic frame in (a) is more suitable than that in (b). It possesses high rigidity and strength.

  The rigidity and proof strength of the structure (seismic frame) shown in Fig. 1- (a) are improved from the rigidity and proof strength of the structure (seismic frame) shown in (b). On the other hand, since the tube frame has an extra capacity, as shown in FIGS. 5- (a) and (b), either or both of the columns 6 in the tube frames are omitted or adjacent columns 6, 6 are omitted. It is possible to increase the interval between them. As a result, it is possible to alleviate the restrictions on the arrangement position of the pillars 6, so that the pillars 6 can be arranged without being restricted by the opening positions of the windows and the entrances and openings on the contrary. The degree of freedom increases, and the opening area can be increased.

  Of the plurality of planar shapes in claim 1, at least one of the planar shapes may be divided into a plurality of regions as shown in FIGS. 6 (a) and 6 (b) (claim 2). The planar shape is divided into a plurality of regions by dividing lines that divide the shape. The lane markings that divide the planar shape become the surface in the tube structure. The fact that one planar shape is divided into a plurality of regions means that the tube frame is divided into a plurality of regions on a plane.

  The tube frame of claim 2 includes a column arranged on a planar outline and a beam connecting the columns, and a column arranged on a partition line crossing (dividing) the outline and a beam connecting the columns. Columns and beams of a tube frame arranged on a planar outline form a single outer circumferential plane, and columns and beams arranged on a division line that crosses the outline are internal planes different from the outer circumferential plane. Configure.

  In claim 2, since the planar shape is divided into a plurality of regions, for example, when two planar shapes are overlapped and combined, a plurality of small tube frames are formed in the overlapping region, and the structure Since the entire plane is a combination of many small tube frames, the rigidity and proof stress of the entire structure are improved. As a result, the degree of freedom in omitting the pillars constituting at least one of the tube frames as described above or increasing the distance between the pillars is increased, and the effect of increasing the degree of freedom of opening formation or opening area is improved. .

  Further, in claim 2, since the planar shape is only divided into a plurality of regions, one tube frame does not have a multiple structure as shown in FIG. Multiple regions are not formed as a result of the combination. Therefore, the situation where the width | variety of either area | region formed by the combination of a some tube frame becomes narrow does not generate | occur | produce.

  The slabs and beams of each layer are connected to the pillars that make up the tube frame, and the beams are located along the boundary between the position along the outline of the plane and the area where the two planes overlap (the area where the small tube frame divides). Be placed. When the space on the slab is a living space, the beam along the boundary is placed on the upper surface side of the slab for the convenience of freely passing on the slab inside and outside the area where the two planes overlap. Since it is difficult to do (reverse beam), the beam at this boundary is arranged on the lower surface side of the slab (forward beam). When it is not necessary to ensure the convenience of traffic between the inner area and the outer area of the small tube frame, such as when the space on the slab is not a living space, the area along the boundary of the area where the small tube frame delimits The beam may be formed as a reverse beam.

  On the other hand, since there is no restriction on the passage along the outline of the plane on the slab, placing the beam on the lower surface side of the slab (forward beam) can also be arranged on the upper surface side (on the reverse beam). ) Is also possible. However, when the beam is arranged on the lower surface side of the slab (forward beam), when the beam is arranged at a position along the edge (outline) of the plane (slab) as shown in FIG. Since the beam reduces the opening area for daylighting indoors and sacrifices the amount of light collected, it is better to place the beam inside the edge of the plane in order to obtain daylighting from a high position.

  However, if the beam is placed inside the edge of the plane, the beam, which is a resistance element of the slab against bending moment, and the column connected to it are located closer to the center of the plane. Rigidity and resistance to bending moment are slightly reduced. For this reason, in order to increase the rigidity of the frame and the resistance to the bending moment, it is advantageous to arrange the beams at the edges of the plane as shown in FIG.

  From the above, from the surface of lighting and the surface of resistance to bending moment, as described in claim 3, among the plurality of planar shapes in claim 1 or claim 2, two planar shapes overlapped. A forward beam is connected to the columns arranged along the outline that divides the area, and the outline that divides the area other than the area where the two planar shapes overlap is continuous to the column of columns to which the forward beam is connected. It is reasonable that the reverse beam is connected to the pillars other than the pillars arranged. “Columns other than columns arranged continuously in a row of columns connected by forward beams” refers to the section on the extended line of the outline that divides the overlapping area in the outermost outline of the plane of the structure. Refers to a pillar in the section.

  In claim 3, the reverse beam is formed on the outline of the plane of the structure, and as shown in FIG. 2- (a), as the height of the opening facing the outside, Since the maximum distance to the lower end of the slab on the floor can be secured, it is possible to arrange the high sash accommodated in the opening at a high position and obtain the maximum amount of lighting.

  In addition, because the beam on the outline of the plane is formed as a reverse beam, there is no effect on the ceiling height in the indoor space, which affects the case of the forward beam, and the amount of light collected in the indoor space. It is possible to earn beam formation, and it becomes possible to bear much of the seismic force on the beam on the outline due to the increase in beam formation. As a result, it is possible to reduce the burden on the seismic force of beams other than the beam (reverse beam) on the outline of the plane, that is, the beam that defines the space formed by the small tube frame (forward beam in claim 3), It is possible to suppress the beam formation of the forward beam, and accordingly, the floor height can be suppressed.

  In the case of claim 3, among the outlines that divide the region other than the region where the two planar shapes overlap each other, the forward beam is connected to the column of columns (which partitions the region where the two planar shapes overlap). As shown in FIG. 3A, a forward beam may be connected to the columns arranged in this manner, and a reverse beam may be connected as shown in FIG.

  When reverse beams are connected, a forward beam connected to a column arranged along the outline line that divides the area where two planar shapes overlap is connected to a reverse beam connected to a column arranged on the same line as the column. The beams are discontinuously separated from each other with the slab in between. However, the continuity of the beams is ensured by placing columns at the abutting portions of the forward and reverse beams. The main bars of both forward and reverse beams are anchored to the column. In this case, there is a step between the beam connected to one side of the column (the lower end of the forward beam) and the beam connected to the other side (the upper end of the reverse beam), so that the beam component and column become shorter. However, the problem of shortening the column can be avoided by increasing the floor height of the beam component.

  In the case of FIG. 3- (b), a forward beam and a reverse beam coexist on the contour line that divides the region where the two planar shapes overlap and the contour line continuous therewith, but the region other than the region where the two planar shapes overlap. The reverse beams are continuous and arranged in a closed shape along the entire outline that divides the area, that is, the outline located on the outer periphery of the entire plane including a plurality of plane shapes. For this reason, the entire circumference of the plane is in the form shown in FIG. 2A, and the maximum distance can be secured as the height of the opening along the entire circumference of the plane. In addition, since the burden ratio to the seismic force of the beam on the outline of the plane (reverse beam) becomes large, it is necessary to increase the floor height to avoid shortening the column, but in that case also delimit the overlapping area There is an effect of suppressing an increase in the floor height by suppressing the formation of the beam (the forward beam in claim 3) along the outline.

  On the other hand, as described in claim 4, among the plurality of planar shapes in claim 3, the two planar shapes are continuously arranged in a column of columns arranged along an outline that defines an overlapping region. When the forward beam is connected to the pillar to be used (the section on the extended line of the outline that defines the overlapping area), the beam that defines the overlapping area as shown in FIG. It can be continued in the same form.

  In this case, the beam along the contour line that divides the region where the two planar shapes overlap and the beam along the extension line of the contour line are continued as a forward beam. Therefore, the main beam of the forward beam in each region can be continued without sandwiching the slab, and the continuity of the beam between the region where the two planar shapes overlap and the other region is ensured. There are good advantages.

  A small column formed in a region where two planar shapes overlap each other by arranging the columns along the plurality of planar outlines, and the columns arranged along the outline form a tube frame for each planar shape. It is possible to construct an earthquake resistant frame in which the space in the tube frame is not biased to either side in the plane of the structure. For this reason, any one of the spaces formed outside the space inside the small tube frame is not restricted by the scale of the tube frame, and the width of these outside spaces can be freely adjusted to plan a free plane. can do.

  As a result, a plurality of tube frames can be combined even in a high-rise building having a laminar or plate shape in plan view, and the advantages of a structure combining a plurality of tube frames can be exhibited.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  1- (a) has a plane in which a plurality of plane shapes 1 and 2 are partially overlapped with each other, and pillars 6 are arranged along the outlines of the plane shapes 1 and 2, respectively. 2 shows an example of a plan view of a tube-type seismic frame in which the columns 6 arranged along the axis form the tube frames 3 and 4 for each of the planar shapes 1 and 2.

  The plane shapes 1 and 2 indicate a plane shape as a figure, and the plane means a plane (slab 7) of a structure formed by combining the plurality of plane shapes 1 and 2. As shown in FIG. 4, the tube frames 3 and 4 connect the column 6 and the slab 7 and the columns 6 arranged along the plane shapes 1 and 2, and connect the beam 8 to the upper end side or the lower end side of the slab 7. 10 is composed.

  Each of the tube frames 3 and 4 is configured for each of the plane shapes 1 and 2, and the tube frames 3 and 4 overlap in a region where the two plane shapes 1 and 2 overlap, and one of the tube frames 3 and 4 that define the overlap region. The part apparently constitutes a closed small tube frame 5 separate from the tube frames 3 and 4.

  FIG. 1- (a) is the same shape, and from the state in which two planar shapes 1 and 2 having the same size are completely overlapped, one planar shape 1 (2) is compared to the other planar shape 2 (1). The plane which combined two planes 1 and 2 so that it may become a shape moved in parallel is shown.

  The direction of parallel movement includes a direction parallel to the outline when the planar shapes 1 and 2 are square, and a direction inclined in that direction. The shape formed by translating the two planar shapes 1 and 2 in a direction inclined in a direction parallel to the outline is a lame shape. The shape and size of the two planes 1 and 2 may be different, and the shape of the plane when combined may be a parallel translation while rotating from an overlapped state.

  As shown in FIG. 1- (a), when two plane shapes 1 and 2 are overlapped, the plane is a space D of a region formed by overlapping both plane shapes 1 and 2, and a space E of an outer region. , F, the plane shapes 1 and 2 are combined so that a constant width (d, e, f) is secured in all the spaces D, E, F.

  Since the pillars 6 are basically arranged at the vertex positions of the planar shapes 1 and 2 and the intersection positions of the two planar shapes 1 and 2, in principle, the width (d of each space (D, E, F) (d , E, f) are combined so that the planar shapes 1 and 2 are, for example, an integral multiple of the distance between adjacent columns 6 and 6. The example of FIG. 1- (a) is a case where the spaces E and F have a width twice as large as the distance between the pillars 6 and 6, and the example of FIG. The widths of E and F are not necessarily an integral multiple of the distance between the columns 6 and 6, and are arbitrarily set.

  FIG. 4 shows a cross section taken along line XX in FIG. As shown here, in order to allow free passage between a space D formed by overlapping two planar shapes 1 and 2 and spaces E and F on both sides thereof, the top end of the plane (slab 7) Therefore, the beam 8 arranged on the line (boundary line) that divides the space D is basically formed (constructed) as a forward beam. The If the top end of the slab 7 does not need to be continuous between the space D and the spaces E and F, the beam 8 may be formed as an inverted beam.

  On the other hand, among the beams 9 and 10 arranged on the line that defines the outer shape of the plane (slab 7), the beam 9 that is not on the extension line of the line that defines the space D secures the maximum amount of light collected indoors. Above, it is formed (constructed) as a reverse beam. Of the beams 9 and 10 arranged on the line defining the outer shape of the plane (slab 7), the beam 10 positioned on the extended line of the line defining the space D is formed as a forward beam or an inverted beam.

  3A shows a case where the beam 10 is formed as a forward beam, and FIG. 3B shows a case where the beam 10 is formed as an inverted beam. (C) shows the beam 8 arranged on the line defining the space D (small tube frame 5) and the beams 9 and 10 arranged on the line defining the outline of the plane (slab 7) as forward beams. In this case, (d) shows a case where all the beams 8 to 10 are formed as reverse beams. Although not shown, when the arrangement of the beams 8 to 10 is completely opposite to (a) with respect to the slab 7, that is, when the beams 8 and 10 are reverse beams and the beam 9 is a forward beam, (b) is completely In other words, the beam 8 may be a reverse beam and the beams 9 and 10 may be forward beams.

  In the case of FIGS. 3A, 3C, and 3D, the beams 8 and 10 positioned on the same line are both formed as forward beams or reverse beams, so that the beams 8 and 10 have the same cross section. Since it can be continued as it is, the structure of the continuous part of both beams 8 and 10 is simplified, and there is an advantage that it is easy to construct. Moreover, since the pillar 6 arrange | positioned at the corner part of the small tube frame 5 is not shortened, there also exists an advantage which can suppress a floor height. In the case of (b), the beams 9 and 10 positioned on the entire outline of the two planar shapes 1 and 2 are reverse beams, so that the height of the opening along the entire circumference of the plane (slab 7). There is an advantage that the maximum distance is secured and the maximum amount of light collected is secured from any direction.

  FIGS. 5- (a) and (b) show examples of the plane of the general floor in a structure having a plane close to the basic shape shown in FIG. 1- (a). (A), (b) is a top view of a different structure (building), respectively. A plurality of pillars 6 are assembled on the outline of each of the planar shapes 1 and 2 for each of the planar shapes 1 and 2 and arranged at intervals that can function as a tube. As shown in the figure, when the planar shapes 1 and 2 are polygonal shapes such as a square shape, the pillar 6 is basically arranged at each vertex position and at the intersection position of the two planar shapes 1 and 2.

  In particular, when the planar shapes 1 and 2 are square (quadrangle) shapes, when the planar shapes 1 and 2 are divided into two horizontal directions of the short side direction (x direction) and the long side direction (y direction), basically, x Each column 6 arranged on the straight line in the direction is located on the same straight line in the y direction, and each column 6 arranged on the straight line in the y direction is located on the same straight line in the x direction. That is, each column 6 is arranged on a grid composed of a straight line in the x direction and a straight line in the y direction.

  However, when the tube frames 3 and 4 have a surplus force with respect to the external force, one of the columns 6 may be omitted or aggregated, or the distance between the columns 6 and 6 may be increased. In FIG. 5, one of the columns 6 of the tube frames 3 and 4 constituting the small tube frame 5 is omitted, or one column 6 arranged in the x direction is omitted or the distance between the columns 6 and 6 is opposed to each other in the x direction. And the distance between the columns 6 and 6 arranged in the y direction is made larger than the distance between the columns 6 and 6 arranged on the outermost outline of the plane. In FIG. 5- (b), among the pillars 6 constituting the tube frame 4, one of the pillars 6 arranged in the y direction is omitted or concentrated on the pillar 6 located in the vicinity thereof.

  Moreover, if the pillar 6 located in a corner | angular part among the pillars 6 located on the outline of a plane (slab 7) can be integrated into the pillar 6 located in the vicinity, the pillar 6 is necessarily arrange | positioned in a corner part. Since there is no need, the corner column 6 can be omitted. For example, when one of the beams 9 and 10 that define the outline of the plane (slab 7) is a forward beam and the other is a reverse beam (FIG. 3A), the continuity of both beams 9 and 10 is ensured. Therefore, the corner column 6 is required. On the other hand, when the beams 9 and 10 are both forward beams ((c)) or reverse beams ((b) and (d)), the beams 9 and 10 can be joined with the same cross section. Therefore, the pillar 6 is not necessarily required. FIG. 5B shows a case in which the column 6 at the lower right corner constituting the tube frame 3 is omitted and the beam 9 at that portion is inclined with respect to the x direction and the y direction.

  5- (a) and (b), on the outermost outline of the plane of the structure, the distance between adjacent pillars 6 and 6 is basically 3500 mm or 4500 mm in both the x and y directions. The size is 5500 mm or close to either. The dimension of 4500 mm to 5500 mm corresponds to the distance between the columns 6 and 6 in the x direction and the y direction constituting the small tube frame 5 having a larger interval than the distance between the columns 6 and 6 arranged on the outer contour line outside the plane. However, the distance between the adjacent pillars 6 and 6 is arbitrarily set.

  5- (a) and (b) use the space inside the small tube frame 5 as a use other than the living space (for example, non-residential space such as a multi-story parking lot), and occupy the space outside the small tube frame 5 The case where it uses as space is shown. In FIG. 5, the solid line inside the small tube frame 5 indicates the boundary between the non-residential space and the residential space, and the space between the solid line and the small tube frame 5 is used as a corridor.

  When the space inside the small tube frame 5 is a non-residential space and there is no traffic to the outside space, the beam 8 arranged along the boundary line of the area defined by the small tube frame 5 is a forward beam. However, in the drawing, there is a traffic for going in and out between the corridor and the living space between the space inside the small tube frame 5 and the space outside it. The beam 8 is formed as a forward beam. By forming the beam 8 on the small tube frame 5 as a forward beam in this way, the space (D to F in FIG. 1- (a)) surrounded by the outline of the plane (slab 7) is made one continuous. It can also be used as a large space.

  6A and 6B show structures in which at least one of the plane shapes 1 and 2 is divided into a plurality of regions by dividing lines that divide the shape. An example of the plane is shown. (A) is a case where both planar shapes 1 and 2 are divided into two regions in the long side direction, and (b) is a case where they are divided into three regions. Depending on the size, it may be divided in the short side direction. 6A, when two planar shapes 1 and 2 have the same shape and the same size, FIG. 6B shows that the length (width) in the short side direction of the two planar shapes 1 and 2 is the same. This is a case where the lengths in the long side direction are different. FIG. 6A shows a case where one of the same plane shapes 1 and 2 including the section position is inverted and overlapped with the other to form a plane (slab 7).

  Each of the planar shapes 1 and 2 passes through the middle position in the long side direction, and in the length direction by an internal construction surface (the partition line) composed of the columns 6 arranged in the short side direction and the beams 8 connecting the columns 6. It is divided. The positions of the internal construction surfaces in the planar shapes 1 and 2 with respect to the long side direction are arbitrary and are determined according to the area of the space formed by the plurality of small tube frames 5 formed by the internal construction surfaces.

  FIG. 6 (a) shows a case where the internal construction surfaces in the plane shapes 1 and 2 are shifted from each other in the long side direction and are also shifted when they are superimposed. (B) is a case where the positions of the internal composition surfaces are set so that the internal composition surfaces in the planar shapes 1 and 2 are arranged on the same line when the planar shapes 1 and 2 are overlapped. In any case, the internal construction surface forms the small tube frame 5 together with the tube frames 3 and 4. When one of the planar lines 1 (2) is superimposed on another planar form 2 (1), it does not overlap or continue to the outline of the other planar form 2 (1), or its dividing line. Sometimes overlapping or continuous.

  In FIG. 6A, the pillars 6 arranged in the two horizontal directions of the planes 1 and 2 are arranged on a grid composed of a straight line in the x direction and a straight line in the y direction. In (b), except for the pillars 6 that divide the planes 1 and 2, the pillars 6 arranged in the two horizontal directions of the planes 1 and 2 are on a grid composed of a straight line in the x direction and a straight line in the y direction. It is arranged. In the example of FIG. 6, the distance between the adjacent pillars 6 on the outer outline is 4100 mm in the short side direction or a size close thereto, and 4600 mm in the long side direction or a size close thereto.

(A) is the top view which showed the outline | summary of the tube type earthquake-resistant frame of this invention, (b) is the top view which showed the outline | summary of the conventional double tube structure. (A) is a longitudinal sectional view showing a relationship with a slab when a beam located on a planar outline is formed as a reverse beam, and (b) is a relationship with a slab when a beam is formed as a forward beam. It is the longitudinal cross-sectional view shown. (A) is a slab in which a forward beam is connected to a column arranged along an outline line that defines an area where two planar shapes overlap, and a forward beam is connected to a column that is continuous to a column of continuous columns. (B) is a perspective view showing the relationship between a beam and a beam, and a forward beam is connected to a column arranged along an outline that defines an overlapped area, and a reverse beam is connected to a column that is continuous to a column of columns that are continuous to it. (C) is a perspective view showing the relationship between the slab and the beam when the beam on the line defining the outline of the plane in (a) is a forward beam. (d) is the perspective view which showed the relationship between a slab and a beam in case all the beams in (c) are reverse beams. It is XX sectional drawing of Fig.1- (a). (A), (b) is the top view which showed the example of the plane of the general floor in the structure with a plane close | similar to the basic form shown to Fig.1- (a). (A), (b) is the top view which showed the example of the plane of the structure in which at least any one planar shape is divided into the some area | region among several planar shapes.

Explanation of symbols

1 ……… Plane type, 2 ……… Plane type 3 ……… Tube frame (Plane type 1 is divided), 4 ……… Tube frame (Plane type 2 is set)
5 ......... Small tube frame (Plane 1 and Plane 2 overlap areas)
6 ……… Column 7 ……… Slab 8 ……… Beam (Beam along the outline defining the area where two planes overlap)
9: Beams (beams placed on a line that defines the outline of the plane)
10 …… Beam (Beam along the extended line of the outline that defines the area where two planes overlap)

Claims (4)

  A plurality of plane shapes have planes partially overlapped with each other, columns are arranged along the outline of each plane shape, and the columns arranged along the outline are tube structures for each plane shape. A tube-type seismic frame characterized by comprising   The tube-type seismic frame according to claim 1, wherein at least one of the plurality of planar shapes is divided into a plurality of regions.   Of the plurality of planar shapes, a forward beam is connected to a column arranged along an outline that defines an area where two planar shapes overlap, and an outline that defines an area other than the area where the two planar shapes overlap. 3. The tube-type seismic frame according to claim 1, wherein a reverse beam is connected to a column other than the columns continuously arranged in the column of columns to which the forward beam is connected. . A forward beam is connected to a column arranged continuously in a row of columns arranged along an outline line that defines an area where two plane shapes overlap among the plurality of plane shapes. Item 4. A tube-type earthquake-resistant frame.

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