Building frame

Abstract

To provide a building frame capable of contributing to the improvement of the rigidity of the building frame in which a substrate material arranged for fixing a finishing material resists the deformation at the time of an earthquake in the building frame of a steel structure.SOLUTION: A building frame 60 of a steel structure is formed of a pair of steel columns 10 and a pair of steel beams 20 to which upper and lower ends of both the steel columns 10 are joined, and an inner wall panel 40 having a framework 41 to which a plurality of crosspieces 42, 43 are assembled and a face material 45 joined to the framework 41 is disposed between the pair of steel columns 10, the crosspiece 43 is joined to a pair of steel beams 20, a joining region 42a corresponding to an end 45a of the face member 45 in the inner wall panel 40 is joined to the pair of steel columns 10, and the inner wall panel 40 is a backing material for fixing a finishing material.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a building frame. [Background technology]

[0002] In conventional steel-framed building structures, which are the structural framework, steel columns made of H-shaped steel or square steel pipes and steel beams made of H-shaped steel are used, and the base materials for fixing the finishing materials (exterior and interior wall surface materials) that form the exterior and interior partition walls are generally placed separately from the columns and beams that are the building frame components. This is in contrast to, for example, wooden building frames, where wooden columns and beams form the structural framework and also serve as the base materials for the finishing materials.

[0003] In steel-framed building structures, the upper part of the base material for the finishing material (such as gypsum board) placed on the interior side of the exterior wall is fixed to a pair of upper and lower steel beams that form the building frame via metal joints, and is placed solely as a base material for the finishing material, and is responsible for only out-of-plane strength. Therefore, the contribution rate of the base material to the rigidity of the building frame against deformation during an earthquake is extremely small. More specifically, the rigidity of the finishing material, such as gypsum board, only contributes to the overall rigidity of the building frame via the upper and lower steel beams, and the base material itself does not directly contribute to improving the overall rigidity of the building frame.

[0004] For these reasons, there is a demand for steel-framed building structures in which the base materials placed to secure finishing materials can contribute to improving the rigidity of the building structure against deformation during earthquakes.

[0005] Here, Patent Document 1 proposes a framework-furring strip integrated structure for a steel-framed building. This framework-furring strip integrated structure is structured such that a brace made of steel and a furring strip, which is a steel architectural base material, are arranged in a space formed by a pair of columns and a pair of beams made of steel, and one end of the furring strip is fixed to the brace and the other end is fixed to a column or beam. The furring strip, which is a steel architectural base material, is arranged between a pair of beams, and its upper and lower ends are connected to the pair of beams. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2008-25096 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the integrated frame furring structure of a steel-framed building described in Patent Document 1, the furring strips, which are architectural steel base materials, are merely connected at their upper and lower ends to a pair of beams, and as described above, the base material itself does not directly contribute to improving the overall rigidity of the building structure.

[0008] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a building structure in which, in a steel-framed building structure, a base material arranged to fix a finishing material can contribute to improving the rigidity of the building structure against deformation during an earthquake. [Means for solving the problem]

[0009] In order to achieve the above object, one aspect of the building frame according to the present invention is as follows: A steel-framed building structure formed by a pair of steel columns and a pair of steel beams to which the upper and lower ends of the steel columns are joined, An interior wall panel including a framework to which a plurality of crosspieces are assembled and a surface material joined to the framework is disposed between the pair of steel columns, the crosspieces are joined to the pair of steel beams, and a joining region of the interior wall panel corresponding to an end of the surface material is joined to the pair of steel columns, The interior wall panel is characterized in that it is a base material for fixing finishing materials.

[0010] According to this aspect, an interior wall panel, which is a base material and which has a framework to which a number of crosspieces are assembled and a face material joined to the framework, is arranged between a pair of steel columns, the crosspieces are joined to a pair of steel beams, and areas of the interior wall panel corresponding to the ends of the face material are joined to the pair of steel columns, so that the interior wall panel, which is a base material, can contribute to improving the rigidity of the building frame against deformation during an earthquake.

[0011] Here, in the building frame of the first floor of a building, the lower steel beam is the foundation beam and the upper steel beam is the beam between the first and second floors, and in the building frame of the second or higher floors, a pair of steel beams is the beam between the lower and upper floors. Also, the building frame includes both the frame that constitutes the exterior wall of the building and the frame that constitutes the interior wall such as a partition wall.

[0012] In addition, "interior wall panel" refers to a panel that is placed inside (inside the structural surface) a pair of steel columns and a pair of steel beams that make up the building structure, and in addition to its function as a base material for fixing gypsum board, which is a finishing material on the indoor side, it also has the function of improving the rigidity of the building structure.

[0013] In the case of an interior wall panel, one panel may be fixed to one of the wide surfaces of the framework, or two panels may be fixed to the two wide surfaces of the framework. Methods for fixing the panel to the framework include adhesive fixing, fastening with fasteners such as screws or nails, and a combination of both.

[0014] When the building frame is displaced horizontally during an earthquake, the component surface materials of the interior wall panels deform within their plane to resist the displacement of the building frame, thereby suppressing the displacement of the building frame, eliminating the need to install braces inside the building frame.

[0015] In order to allow the panel to displace in this manner to follow and counter the horizontal displacement of the building frame, the joint areas corresponding to the ends of the panel in the interior wall panel and the pair of steel columns should be firmly fastened with screws, bolts, nails, bolts, etc.

[0016] Another aspect of the building frame according to the present invention is The framework includes at least a pair of upper and lower horizontal bars and a pair of left and right vertical bars, The front view shapes of the interior wall panel and the surface material are both rectangular, The left and right ends of the panel are joined to the vertical bars, and the joining area where the four corner portions of the panel at the vertical bars join is joined to the steel column.

[0017] According to this aspect, a panel having a rectangular shape when viewed from the front is joined to a pair of left and right vertical bars that make up the frame, and the joint area where the four corner portions of the panel on the vertical bars join is joined to a steel column. Therefore, when the building frame deforms during an earthquake, the rectangular panel having a rectangular shape when viewed from the front deforms into a parallelogram, effectively suppressing deformation of the building frame.

[0018] Another aspect of the building frame according to the present invention is The front view dimension of the face material is smaller than the outer dimension of the frame, The panel is attached to the framework at a central position or approximately at the central position in the height direction.

[0019] According to this aspect, the front view dimensions of the face material are smaller than the outer dimensions of the frame, so that deformation of the building frame can be suppressed with face materials of as small dimensions as possible. Furthermore, since the face material is attached to the center or approximately center of the frame in the height direction, the face material effectively deforms to counteract the left and right displacement of the building frame during an earthquake, and the left and right displacement of the building frame can be suppressed. Here, since the building frame displaces horizontally during an earthquake, it is preferable that the face material has a horizontally long rectangular shape when viewed from the front, because the face material can effectively displace into a horizontally long parallelogram when the building frame displaces horizontally, thereby contributing to suppression of the horizontal displacement of the building frame.

[0020] Another aspect of the building frame according to the present invention is The crosspiece is a wooden crosspiece, The face material is any one of plywood, cross-laminated timber, and laminated veneer lumber.

[0021] According to this embodiment, a face material made of one of plywood (including structural plywood), cross-laminated timber, or laminated veneer lumber is attached to a batten material made of wooden battens, thereby forming an interior wall panel incorporating a highly rigid face material, which can effectively suppress displacement of the building frame during an earthquake.

[0022] Another aspect of the building frame according to the present invention is The crosspiece is a steel crosspiece, The facing material is any one of a gypsum board, a calcium silicate board, a flexible board, and a steel plate.

[0023] According to the present embodiment, a surface material made of any one of gypsum board, calcium silicate board, flexible board, and steel plate is attached to a crosspiece material made of steel crosspieces, thereby incorporating a highly rigid surface material and forming an interior wall panel with excellent fire resistance, thereby suppressing displacement during an earthquake and forming a building frame with high fire resistance. Effect of the Invention

[0024] As can be understood from the above explanation, according to the building frame of the present invention, in a steel-framed building frame, the base material arranged to fix the finishing material can contribute to improving the rigidity of the building frame against deformation during an earthquake. [Brief description of the drawings]

[0025] [Figure 1] 1 is a front view showing a building frame precursor and an interior wall panel arranged in parallel before forming a building frame according to an embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a front view of an example of a building frame according to the embodiment. [Diagram 3] FIG. 2 is a front view showing a state in which the building frame according to the embodiment is displaced horizontally during an earthquake. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an example of a building frame according to an embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially identical components are designated by the same reference numerals, and duplicated descriptions may be omitted.

[0027] [Building structure according to the embodiment] An example of a building frame according to an embodiment will be described with reference to Fig. 1 to Fig. 3. Fig. 1 is a front view of a building frame precursor and an interior wall panel arranged in parallel before forming the building frame according to the embodiment, and Fig. 2 is a front view of an example of the building frame according to the embodiment. Fig. 3 is a front view showing a state in which the building frame according to the embodiment is displaced in the horizontal direction during an earthquake.

[0028] The building frame 60 shown in FIG. 2 is formed by attaching the interior wall panel 40 to the building frame precursor 30 shown in FIG.

[0029] The building frame precursor 30 is, as the name suggests, a frame before the interior wall panels 40 are attached, and is a steel-framed frame having a rectangular frame shape (approximately rectangular frame shape) when viewed from the front, formed by a pair of steel columns 10A, 10B and a pair of steel beams 20A, 20B to which the upper ends 11 and lower ends 12 of the steel columns 10A, 10B are joined.

[0030] When the building frame precursor 30 is the frame for the first floor of a steel beam building, the upper steel beam 20A becomes the inter-floor beam between the first and second floors, and the lower steel beam 20B becomes the foundation beam. On the other hand, when the building frame precursor 30 is the frame for the second or higher floor, the pair of steel beams 20A, 20B becomes the beam between the upper and lower floors. The building frame precursor 30 includes both the frame that constitutes the exterior wall of the building and the frame that constitutes the interior wall such as a partition wall.

[0031] The steel column 10 is formed of a square steel pipe or an H-shaped steel, and the steel beam 20 is formed of shaped steel such as an H-shaped steel or a channel steel. The upper end 11 and the lower end 12 of the steel column 10 are joined to the upper and lower steel beams 20A, 20B by bolt joints via joint fittings (including joint plates) not shown, but may be joined by welding.

[0032] When the steel column 10 and the steel beam 20 are connected by a bolt connection using multiple bolts, from the viewpoint of structural stability and earthquake resistance of the building frame precursor 30, a brace (not shown) is usually arranged inside a rectangular frame consisting of the steel column 10 and the steel beam 20, and the brace is bolted to a bracket (not shown) or the like located on the inside of the corner of the rectangular frame.

[0033] In contrast, the building frame 60 in the illustrated example is attached by arranging the interior wall panel 40 shown in Figure 1 inside the rectangular frame of the building frame precursor 30, and by attaching the interior wall panel 40, a building frame 60 with structural stability is formed while eliminating the need for braces.

[0034] The interior wall panel 40 has a rectangular frame-shaped framework 41 and a panel 45 that is rectangular when viewed from the front and has dimensions when viewed from the front that are smaller than the outer dimensions of the framework 41.

[0035] The framework 41 has the same height as the internal height t2 between a pair of steel beams 20 of the building frame precursor 30, and has a width t3 that is approximately the same as or slightly shorter than the internal width t1 between a pair of steel columns 10 of the building frame precursor 30.

[0036] The framework 41 has three vertical bars 42 (one example of a bar member) and a pair of horizontal bars 43 (another example of a bar member) joined to the upper and lower ends of each vertical bar 42. Here, the vertical bars 42 may be two, one on the left and one on the right, or if the horizontal bars 43 are long, four or more vertical bars 42 may be provided.

[0037] A horizontally long rectangular panel 45 having a height t4 is fixed to the center of the height direction of the framework 41. Here, the panel 45 may be fixed to the exact center of the height direction of the framework 41 or to an approximately central position.

[0038] In addition, the front view dimensions of the panel 45 may be a square (height t4 and width t3 are the same) when viewed from the front, in addition to the illustrated example. However, if the panel 45 is a vertically long rectangle, the effect of the panel 45 in effectively deforming and resisting horizontal displacement of the building frame 60 during an earthquake will be reduced. Therefore, from the viewpoint of effectively suppressing horizontal displacement of the building frame 60 during an earthquake, it is preferable that the front view shape of the panel 45 be set to a horizontally long rectangle as shown in the illustrated example, or a square.

[0039] Furthermore, by fixing the panel 45 to the center position in the height direction of the rectangular frame-shaped framework 41, the panel 45 can effectively displace left and right to counter repeated left and right displacements of the building frame 60 during an earthquake, thereby suppressing displacement of the building frame 60.

[0040] Here, the interior wall panel 40 includes both wooden panels and fire-resistant panels. When the interior wall panel 40 is a wooden panel, the crosspieces 42, 43 are wooden crosspieces, and the face material 45 is made of any one of plywood (including structural plywood), cross laminated timber (CLT), and laminated veneer lumber (LVL).

[0041] Since these various types of surface materials 45 are all highly rigid, they can form a highly rigid interior wall panel 40. In addition, when the interior wall panel 40 is a wooden panel, the building frame 60 is endowed with the exterior design that wood provides.

[0042] When the interior wall panel 40 is a wooden panel, the facing 45 is adhesively fixed to the framework 41, but it may also be fastened with fasteners such as screws or nails, or it may be fixed by both adhesive bonding and fastening with fasteners.

[0043] On the other hand, when the interior wall panel 40 is a fire-resistant panel, the crosspieces 42, 43 are steel crosspieces made of shaped steel material such as channel steel or angle iron, and the face material 45 is formed from any one of gypsum board, calcium silicate board, flexible board, and steel plate.

[0044] All of these various types of panel materials 45 are highly rigid panel materials, and together with the steel cross members 42, 43, can form an interior wall panel 40 with excellent fire resistance.

[0045] When the interior wall panel 40 is a steel panel, the facing 45 is fastened to the framework 41 by fasteners such as screws, nails, or bolts.

[0046] As shown in Fig. 2, an interior wall panel 40 is placed inside a building frame precursor 30, and a pair of horizontal beams 43 are fastened to a pair of steel beams 20 via fasteners 51. The fasteners 51 may be screws, nails, bolts, or the like.

[0047] Meanwhile, of the pair of vertical bars 42, joint regions 42a corresponding to four corner portions 45a (an example of an end portion) of the facing material 45 are firmly joined to the pair of steel columns 10. Here, the joint regions 42a of the vertical bars 42 and the steel columns 10 are joined by fastening with fasteners 52 such as screws, bolts, nails, and bolts (including lag screw bolts).

[0048] The interior wall panel 40 is placed within the rectangular frame of the building frame precursor 30 and functions as a base material for fixing finishing materials (not shown) for the exterior and interior walls.

[0049] Furthermore, as shown in FIG. 2, in the building frame 60, a pair of upper and lower cross beams 43 constituting the interior wall panel 40 are fixed to a pair of steel beams 20 via fasteners 51, and further, the joint areas 42a of the interior wall panel 40, particularly those corresponding to each corner portion 45a of the face material 45, are firmly fixed to a pair of steel columns 10 via fasteners 52.

[0050] With this configuration, as shown in Figure 3, when a horizontal force H acts on the building frame 60 during an earthquake, causing the building frame 60 to displace horizontally in the X1 direction, the interior wall panel 40 can displace horizontally in response to this horizontal displacement.

[0051] In particular, since the joint region 42a of the vertical bar 42 corresponding to the corner portion 45a of the high-rigidity panel 45 is strongly fixed to the steel column 10, the panel 45 is effectively displaced into a parallelogram while being pulled in one diagonal direction, in the X2 direction, relative to the horizontal displacement direction of the building frame 60, and compressed in the opposite diagonal direction, in the X3 direction.

[0052] In this way, the face material 45, which is initially rectangular when viewed from the front, is displaced so as to change shape into a parallelogram, and the face material 45 suppresses the horizontal displacement of the building frame 60. In other words, in the building frame 60, the interior wall panel 40 which functions as a base material is incorporated and firmly fixed to both the pair of steel columns 10 and steel beams 20, so that the rigidity of the building frame 60 against horizontal displacement during an earthquake is increased by the interior wall panel 40, and it is possible to form a building frame 60 with excellent earthquake resistance.

[0053] Furthermore, if the joint area 42a of the vertical bar 42 of the interior wall panel 40 is not strongly fixed to the steel column 10, the interior wall panel 40 will be displaced in accordance with the displacement of the building frame 60 in the area without the surface material 45, and the effect of suppressing the displacement of the building frame 60 due to the displacement of the highly rigid surface material 45 will be significantly reduced, which is undesirable.

[0054] Furthermore, if the face material 45 is not firmly fixed to the framework 41 (glued in the illustrated example), the framework 41 will displace in response to the displacement of the building frame 60, but the face material 45 will not displace sufficiently, so that the effect of suppressing displacement of the building frame 60 due to the displacement of the face material 45 will be significantly reduced, which is undesirable.

[0055] Furthermore, when the interior wall panel 40 is a fire-resistant panel, in addition to increasing the rigidity of the building frame 60, the fire resistance performance is also improved as described above.

[0056] In addition, the present invention is not limited to the configuration shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like of the above-mentioned embodiment. In this regard, the present invention may be modified within the scope of the gist of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0057] 10, 10A, 10B: Steel columns 11:Top edge 12: Bottom edge 20, 20A, 20B: Steel beam 30: Building frame precursor 40: Interior wall panel 41:Framework 42: Vertical crosspiece (crosspiece material) 42a:Joint area 43: Crosspiece (crosspiece material) 45: Surface material 45a: Corner (edge) 51, 52: Clasp 60: Building frame H: Horizontal force

Claims

1. A steel-framed building structure formed by a pair of steel columns and a pair of steel beams to which the upper and lower ends of the steel columns are joined, An interior wall panel including a framework to which a plurality of crosspieces are assembled and a surface material joined to the framework is disposed between the pair of steel columns, the crosspieces are joined to the pair of steel beams, and a joining region of the interior wall panel corresponding to an end of the surface material is joined to the pair of steel columns, A building structure, characterized in that the interior wall panel is a base material for fixing a finishing material.

2. The framework includes at least a pair of upper and lower horizontal bars and a pair of left and right vertical bars, The front view shapes of the interior wall panel and the surface material are both rectangular, The building structure according to claim 1, characterized in that the left and right ends of the panel are joined to the vertical bars, and the joint area where the four corner portions of the panel in the vertical bars are joined is joined to the steel column.

3. The front view dimension of the face material is smaller than the outer dimension of the frame, 2. The building structure according to claim 1, wherein the panel is attached to the framework at a center position or approximately a center position in a height direction of the framework.

4. The crosspiece is a wooden crosspiece, 2. The building structure according to claim 1, wherein the facing material is any one of plywood, cross-laminated timber, and laminated veneer lumber.

5. The crosspiece is a steel crosspiece, The building structure according to claim 1, wherein the surface material is any one of a gypsum board, a calcium silicate board, a flexible board, and a steel plate.

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