JP2018172888A - Building frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame structure in which a column overhangs from a wall surface is suppressed and bending strength in a horizontal direction is improved. SOLUTION: A pillar 1 is arranged between a plurality of pillar main bodies 11 made of H-shaped steel and the pillar main body 11, and a web 121 and flanges 122, 123 are orthogonal to a flange 112 of the pillar main body 11. A required number of connecting members 12 (including intercolumn beams 12A) made of joined shaped steel are provided, and a plurality of ribs 114 are provided on the column body 11 in a state orthogonal to the web 111 and the flanges 122 and 123 of the column body 11. Is provided, and the rib 114 is located at a position corresponding to the flanges 122 and 123 of the connecting member 12 (column beam 12A). [Selection diagram] Fig. 1

Description

  The present invention relates to a frame structure with columns and beams made of steel frames in a building.

  In a building such as a high-rise building, in order to increase the rigidity in the horizontal direction of the entire building, it has been performed by using a square steel pipe column having a large cross-sectional size. However, when a square steel pipe column with a large cross-sectional size is used, the projection of the column from the wall surface becomes large, and the degree of freedom in using the indoor space is limited accordingly.

  In addition, conventionally, it has two vertical support members made of H-shaped steel and a connecting material made of H-shaped steel arranged vertically between the vertical support materials, and the upper and lower ends of the vertical support material are H-shaped. It is fixed to the beam made of steel by bolt fastening, and the flange of the vertical support member and the flange of the connecting member are connected to each other by bolt fastening, and the upper and lower ends of the connecting member are separated from the beam and are not fixed. A connecting column is known (see Patent Document 1).

  That is, according to this connection pillar, the protrusion of the pillar from the wall surface can be suppressed, and the required vertical support force can be ensured.

Japanese Patent Laid-Open No. 2006-69839

  However, the above-mentioned conventional technology adopts a connecting material having a required number of openings or a low-yield material for the purpose of making it possible to absorb horizontal force due to an earthquake by deformation. It does not increase the rigidity against horizontal force.

  The present invention has been made in view of the above points, and its technical problem is to provide a frame structure that suppresses the protrusion of a pillar from a wall surface and improves the bending strength in the horizontal direction. It is in.

  The present invention relates to a frame structure of a building in which a plurality of columns are connected by a beam, wherein the columns are formed of a shape steel having a plurality of column main bodies made of H-shaped steel, a web and a flange, The above-described problems are solved by providing a plurality of connecting members that are horizontally arranged and connect the webs and flanges to the flanges of the column main bodies from the orthogonal direction to connect the pair of column main bodies.

  ADVANTAGE OF THE INVENTION According to this invention, the protrusion of the pillar from a wall surface can be suppressed or prevented, and the rigidity with respect to the bending moment to a horizontal direction can be improved.

It is a front view showing a first preferred embodiment of a building frame structure. FIG. (A)-(e) is a front view which shows another embodiment of the connection material which has connected the column main body in the position of the height different from a beam, respectively. (A) (b) is a front view which shows another embodiment of the connection material (beam between pillars) which has connected the pillar main body in the position of the same height as a beam, respectively. It is a perspective view which shows preferable 2nd embodiment of the frame structure of a building. It is a front view which shows preferable 3rd embodiment of the frame structure of a building. It is the perspective view which abbreviate | omitted partially which shows preferable 3rd embodiment of the frame structure of a building. It is a perspective view which shows preferable 4th embodiment of the frame structure of a building.

  A preferred embodiment of a building frame structure will be described with reference to the drawings.

[First embodiment]
FIG. 1 and FIG. 2 show a first embodiment. Reference numeral 1 in the figure is a pillar built in the vertical (Z direction), reference numeral 2 is arranged horizontally and is attached to the pillar 1. It is a joined beam. The pillar 1 includes two pillar bodies 11 and a required number of connecting members 12 arranged and joined between the pillar bodies 11 and 11.

  Specifically, the column body 11 in the column 1 is made of H-section steel, that is, a pair of flanges 112 and 113 projecting in the orthogonal direction (Y direction) from both ends of the web 111 and its width direction (X direction). It is the main body that takes charge of supporting the vertical load of the building.

  The connecting member 12 in the column 1 is made of I or H-section steel extending in the X direction, that is, the web 121 and a pair of flanges 122 protruding in the horizontal direction (Y direction) from both ends in the width direction (Z direction). , 123, and the web 121 and the flanges 122, 123 in the X-direction both ends 12 a are joined by welding so as to be orthogonal to the mutually opposing flanges 112, 112, whereby the column body 11, 11 are connected to each other.

  The beam 2 is made of I-shaped steel or H-shaped steel having the same cross-sectional shape as the connecting material 12 and extending in the X direction, that is, from the web 21 and its width direction (Z direction) both ends in the horizontal direction (Y direction). A pair of projecting flanges 22 and 23 are provided, and the web 21 and the X-direction end 2a of the flanges 22 and 23 are orthogonal to the flanges 113 and 113 on the column main bodies 11 and 11 on the opposite side to the connecting member 12. Are joined by welding.

  There are two types of connecting members 12, one connecting the column bodies 11, 11 at a different height from the beam 2, and one connecting the column bodies 11, 11 at the same height as the beam 2. The connecting members 12 are arranged at a predetermined interval in the vertical direction. The connecting member 12 that connects the column main bodies 11 and 11 at the same height as the beam 2 is referred to as an inter-column beam 12A.

  A plurality of horizontal ribs 114 made of steel are joined to the column main body 11 by welding in a state orthogonal to the web 111 and the flanges 112 and 113 in the column main body 11. These ribs 114 are arranged at positions corresponding to the upper and lower flanges 122 and 123 in the connecting member 12. That is, the flanges 122 and 123 of the connecting member 12 are arranged in a straight line with the rib 114 of the column main body 11 in the horizontal direction (X direction). Further, at the position of the inter-column beam 12A as the connecting member 12, the flanges 22 and 23 of the beam 2 are also directed in the horizontal direction (X direction) together with the rib 114 of the column main body 11 and the flanges 122 and 123 of the inter-column beam 12A. Are lined up in a straight line.

  The web 121 of the inter-column beam 12A and the web 21 of the beam 2 are also linearly aligned with the web 111 of the column main body 11 in the horizontal direction (X direction).

  According to 1st embodiment provided with the above-mentioned structure, since pillar 1 couple | bonds a pair of pillar main body 11 which consists of H-section steel with the connection material 12 (12A of pillars are included), it is a cross section. The column does not protrude from the wall as in the case of using a large-sized square steel pipe column to ensure vertical supporting force and horizontal rigidity, which increases the indoor span and frees up the use of indoor space. The degree can be greatly improved.

  Further, the column main body 11 in the column 1 becomes a continuous through column without being divided in the vertical direction (Z direction) by the beam 2 in addition to the strength of the H-shaped steel being further enhanced by the rib 114, so The rigidity against the bending moment in the direction (X direction) increases. Therefore, the earthquake resistance is improved, the column can be prevented from breaking when a large horizontal force is applied due to a large earthquake, and the relative horizontal displacement (interlayer deformation) between the upper and lower beams is kept small. be able to.

  In addition, when a horizontal force in the X direction due to an earthquake or the like is applied to the flanges 112 and 113 of the column body 11 via the beam 2 and the connecting member 12, the flanges 22 and 23 of the beam 2 and the flanges 122 and 123 and the ribs 114 linearly arranged in the X direction suppress deformation of the flanges 112 and 113 of the column main body 11, so that the bending rigidity of the column 1 with respect to the X direction in which the column main bodies 11 and 11 are arranged is further increased. It will be a thing. Further, the fact that the web 121 of the inter-column beam 12A and the web 21 of the beam 2 are provided side by side with the web 111 of the column body 11 in the X direction also contributes to the improvement of the bending rigidity of the column 1 in the X direction. Since the column main body 11, the connecting member 12 (the inter-column beam 12A), and the beam 2 are joined by welding, the joining strength is high.

  Based on FIG. 3 (a)-(e), another embodiment of the connection material 12 which has connected the column main bodies 11 and 11 in the position of the height different from the beam 2 is demonstrated. In any embodiment, the rib 114 of the column main body 11 and the flanges 122 and 123 of the connecting member 12 are examples arranged at different heights.

  3A is an example in which the distance between the pair of flanges 122 and 123 provided on the connecting member 12 is larger than the distance between the pair of ribs 114 of the column main body 11. In this example, each part is arrange | positioned so that the horizontal projection surface between a pair of ribs 114 may be included in the horizontal projection surface between a pair of flanges 122 and 123.

  3B is also an example in which the distance between the pair of flanges 122 and 123 provided on the connecting member 12 is larger than the distance between the pair of ribs 114 of the column main body 11. However, in this example, the pair of ribs 114 are offset downward, and the horizontal projection plane between them is positioned at a position that is out of position while overlapping the horizontal projection plane between the pair of flanges 122 and 123. Each part is arranged.

  3C is an example in which the distance between the pair of flanges 122 and 123 provided on the connecting member 12 is larger than the distance between the pair of ribs 114 of the column main body 11. In this example, the pair of ribs 114 are offset upward so that the horizontal projection plane between them is positioned at a position disengaged while overlapping the horizontal projection plane between the pair of flanges 122 and 123. Each part is arranged.

  What is shown in FIG. 3D is an example in which the distance between the pair of flanges 122 and 123 provided on the connecting member 12 is smaller than the distance between the pair of ribs 114 of the column main body 11. In this example, the pair of ribs 114 are offset upward, and each part is positioned so that the horizontal projection plane between them is completely out of the horizontal projection plane between the pair of flanges 122 and 123. Is arranged.

  3E is also an example in which the distance between the pair of flanges 122 and 123 provided on the connecting member 12 is smaller than the distance between the pair of ribs 114 of the column main body 11. However, in this example, each part is arranged in the horizontal projection plane between the pair of ribs 114 so that the horizontal projection plane between the pair of flanges 122 and 123 is positioned.

  4 (a) and 4 (b), another embodiment of the connecting member 12 connecting the column main bodies 11 and 11 at the same height as the beam 2, that is, the inter-column beam 12A will be described. Each of these aspects can further increase the rigidity and strength of the frame structure.

  4A is an example in which the distance between the pair of flanges 122 and 123 provided on the inter-column beam 12A is larger than the distance between the pair of ribs 114 of the column main body 11. FIG. In this example, each part is arrange | positioned so that the horizontal projection surface between a pair of ribs 114 may be included in the horizontal projection surface between a pair of flanges 122 and 123.

  In FIG. 4B, the inter-column beam 12 </ b> A is divided into two, and is arranged at a position corresponding to the upper end and a position corresponding to the lower end of the beam 2.

[Second Embodiment]
FIG. 5 shows, as a preferred second embodiment of a building frame structure, a connecting member 12 in a column 1 and a beam 3 made of I-shaped steel or H-shaped steel in a direction perpendicular to the beam 2 (Y direction). An example of joining is shown. That is, the beam 3 can be joined to the connecting member 12 that joins the column main bodies 11 and 11 by welding via an appropriate joining plate 124. In the illustrated example, the end of the web 31 of the beam 3 is welded to the web 121 of the inter-column beam 12A, which is the connecting member 12, via the joining plate 124, and the end of the flange 32 of the beam 3 is connected to the inter-column. It is welded to the flange 122 of the beam 12A.

[Third embodiment]
6 and 7 show a third preferred embodiment of a building frame structure. In this embodiment, the difference from the first and second embodiments described above is that the three column bodies 11 are connected to each other via a connecting member 12. Each column main body 11 and connecting material 12 are the same as those in the first and second embodiments.

  That is, also in this embodiment, the connecting member 12 is one in which the column main bodies 11 and 11 are connected at the same height as the beam 2 (an inter-column beam 12A), and the column main body at a position different from the beam 2. 11 and 11 are connected. Each connecting member 12 is disposed at a predetermined interval in the vertical direction, and both ends of the web 121 and the flanges 122 and 123 are orthogonal to the flanges 112 and 112 (or the flanges 113 and 113) facing each other in the adjacent column main bodies 11 and 11. Thus, it joins by welding and this connects the column main bodies 11 and 11 mutually.

  In addition, a plurality of horizontal ribs 114 made of steel material joined in a perpendicular state to the web 111 and the flanges 112 and 113 are joined to each column body 11 by welding. These ribs 114 are located at positions corresponding to the upper and lower flanges 122 and 123 in the inter-column beam 12 </ b> A that is the connecting member 12 and the upper and lower flanges 22 and 23 in the beam 2.

  According to the third embodiment, since the number of the column main bodies 11 is greater than that in the first and second embodiments, the rigidity with respect to the vertical support force and the horizontal force can be further improved.

  Note that the connecting material 12 is plastically deformed by the input of the horizontal shearing force from the column main body 11 if the yield point is low and the elongation is good by appropriately setting the material and thickness thereof, and this is effective. It is also possible to provide a function as a panel damper that consumes vibration energy and attenuates shaking.

[Fourth embodiment]
FIG. 8 shows a fourth preferred embodiment of a building frame structure.

  In the fourth embodiment, the difference from the first to third embodiments described above is that the upper end and the lower end of the column main body 11 are welded to the beam-shaped connecting member 13, and the end of the beam 2 is It is in being joined to the beam-like connecting material 13 by welding.

  Specifically, the beam-like connecting member 13 is welded in a state orthogonal to the web 131 extending in the XZ direction, the pair of flanges 132 and 133 projecting horizontally (Y direction) from the upper and lower ends thereof, and the web 131 and the flanges 132 and 133. The plurality of ribs 134 are formed. The widths of the flanges 132 and 133 are equal to or slightly wider than the widths of the flanges 112 and 113 of the column main body 11, and the plurality of ribs 134 are in the vertical direction (Z direction) with the flanges 112 and 113 of the column main body 11, respectively. They are arranged in a straight line.

  Further, the beam 2 is joined by welding in a state where the end portion of the web 21 is linearly aligned with the web 131 of the beam-like connecting member 13 in the X direction to the rib 134 at the end portion of the beam-like connecting member 13. The ends of the flanges 22 and 23 are joined to the flanges 132 and 133 of the beam-like connecting member 13 by welding in a state of being linearly aligned in the X direction.

  Further, the end portion of the web 31 of the beam 3 extending in the direction perpendicular to the beam 2 (Y direction) is joined to the web 131 of the beam-like connecting member 13 by welding via the joining plate 135, and the flange 32 of the beam 3. Is joined to the flange 132 of the beam-like connecting member 13 by welding.

  The web 131 of the beam-shaped connecting member 13 is also in a position aligned with the web 111 of the column main body 11 and the web 21 of the beam 2.

  In the fourth embodiment having the above-described configuration, the column 1 is formed by connecting a pair of column main bodies 11 made of H-shaped steel by a connecting member 12, and thus is vertically supported using a square steel pipe column having a large cross-sectional size. The column does not protrude from the wall surface as in the case where the force and the rigidity in the horizontal direction are ensured. Therefore, the indoor span is increased, and the degree of freedom in using the indoor space can be greatly improved.

  Moreover, the bending rigidity against the horizontal force in the X direction due to an earthquake or the like can be increased by the flanges 122 and 123 of the connecting member 12 and the rib 114 linearly aligned in the X direction. The web 131 and the rib 134 of the beam-like connecting member 13 are also linearly aligned in the vertical direction (Z direction) with the web 111 and the flanges 112 and 113 of the column main body 11 in terms of the rigidity against the deformation force applied between the connecting members 13. Can be increased by. Further, the fact that the web 131 of the beam-shaped connecting member 13 is provided side by side with the web 111 of the column main body 11 and the web 21 of the beam 2 also contributes to an improvement in the bending rigidity of the column 1 in the X direction.

  Therefore, even in this embodiment, unlike the case of using a square steel pipe column having a large cross-sectional size, it is possible to suppress or prevent the projection of the column from the wall surface. The degree of freedom of use can be greatly improved. In addition, since the rigidity against the bending moment in the horizontal direction is improved, the earthquake resistance is improved, and the column can be prevented from being destroyed when a large horizontal force is applied due to a large earthquake. The relative horizontal displacement (interlayer deformation) can be kept small.

DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3 Beam 11 Column main body 13 Beam-shaped connection material 12 Connection material 12A Inter-column beam 21 Web 22 Flange 23 Flange 111 Web 112 Flange 113 Flange 114 Rib 121 Web 122 Flange 123 Flange

Claims (12)

In the structure of a building that connects multiple columns with beams,
The pillar is
A plurality of pillar bodies made of H-shaped steel;
A plurality of connections comprising a shape steel having a web and a flange, wherein the flanges are horizontally arranged, and the web and the flange are joined to the flange of the column body from the orthogonal direction to couple a pair of the column bodies. Material,
Comprising
The frame structure of a building characterized by this. The column main body spans a rib between a pair of flanges of the column main body in parallel with the flange of the coupling member,
The frame structure of the building according to claim 1. The ribs of the pillar main body are arranged at a height that matches the flange of the connecting material,
The building frame structure according to claim 2, wherein: The ribs of the pillar main body are arranged at a different height from the flange of the connecting material,
The building frame structure according to claim 2, wherein: A part of the connecting material is disposed at a height corresponding to the beam and becomes an inter-column beam,
The frame structure of the building according to claim 1. The column main body has a rib extending between a pair of flanges of the column main body in parallel with a height of a flange of the beam arranged horizontally, in parallel.
The frame structure of the building according to claim 5. The inter-column beam is made of H-shaped steel,
The pair of flanges of the inter-column beam are arranged at a height matching the beam,
The building frame structure according to claim 5 or 6, characterized in that The inter-column beam is made of H-shaped steel,
The pair of flanges of the inter-column beam is disposed at a position offset vertically from the beam,
The building frame structure according to claim 5 or 6, characterized in that The inter-column beam is made of H-shaped steel, and is divided into two parts, a position corresponding to the upper end and a position corresponding to the lower end of the beam,
The building frame structure according to claim 5 or 6, characterized in that Another beam connected to the inter-column beam perpendicular to the beam,
The building frame structure according to any one of claims 5 to 9, wherein A pair of the column main bodies connected by the connecting material is connected in a vertical direction, and the beam-shaped connecting material for connecting the beams in a horizontal direction is provided.
The building frame structure according to any one of claims 1 to 4, wherein the frame structure is a building structure. Another beam connected to the beam-shaped connecting member orthogonal to the beam,
The frame structure of the building according to claim 11.

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