JP3570549B2 - Bearing structure of truss structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a truss structure used as a panel support structure of a curtain wall, for example, and relates to a floor-side and ceiling-side support structure.
[0002]
[Prior art]
As a curtain wall structure applied to a stairwell on the first or second floor of a building or the like, for example, as shown in FIG. 19, a truss structure 50 is arranged on the indoor side and fixed to this truss structure 50. Further, there is known a device that supports a curtain wall panel through the blinds 51, 51.
[0003]
The truss structure 50 includes lattice members (diagonal members) 54, 54 in which a front chord member 52 and a rear chord member 53 are spaced apart from each other, and these chord members 52, 53 are arranged in a Warren truss shape. Are connected by...
[0004]
The truss structure 50 is supported on each of a floor surface and a ceiling surface, but the structure of a conventional support portion usually supports the base member fixed to the floor surface or the ceiling surface and the truss structure 50. A bearing device comprising a connecting member is used.
[0005]
[Problems to be solved by the invention]
However, in the case of the conventional bearing device, the operation of fixing the base member to the floor or ceiling surface with an anchor bolt or the like occurs, which complicates the operation, and is very attractive because it is exposed to the outside. There were problems such as bad. In particular, as shown in FIG. 20, in order to create an open space by using the entire surface of the atrium space as a glass surface, a panel support frame such as a cubic or blind eye is eliminated, and a panel corner is pointed by a panel support fitting 56. In the case of the DPG structure (dot point glazing structure) in which the shape is supported, there is a problem that the appearance of the corner is impaired.
[0006]
Accordingly, a main object of the present invention is to provide a support structure that allows a truss structure to be easily installed and has a neat appearance.
[0007]
[Means for Solving the Problems]
According to the first aspect of the present invention for solving the above-described problems, the chord members arranged apart from each other are connected by a plurality of lattice members arranged diagonally and supported on the floor side and the ceiling side, respectively. The floor-side support structure of the truss structure,
Between the lower end chords of the truss structure, a lower end connecting member having a concave notch formed in a lower edge portion is horizontally laid, and a floor-side support plate is previously erected inside the floor frame outside. Buried the deposit,
While the upper end surface of the floor-side support plate is used as a bearing seat surface, the concave notch of the lower end connecting member is engaged with the floor-side support plate, and is detached by a pair of narrow attachment plates provided on both side surfaces. It is characterized in that it is restrained so as not to be engaged. In this case, it is desirable that the upper end surface of the floor-side support plate be a convex curved surface.
[0008]
In the second invention, the chord members spaced apart are connected by a plurality of lattice members arranged diagonally, and the chord members are supported on the floor side and the ceiling side, respectively. The ceiling-side support structure,
An upper end connecting member having a concave notch formed on an upper edge thereof is horizontally laid between upper end chord members of the truss structure, and a ceiling-side support plate is suspended inside the ceiling frame in advance. With the hardware buried,
The concave notch of the upper end connecting member is engaged with the ceiling-side support plate, and is irremovably restrained by a pair of narrow attachment plates disposed on both side surfaces.
[0009]
In the case of the first invention and the second invention, the narrow attachment plate is provided with a fixed shaft penetrating the lower end connecting member or the upper end connecting member, and the fixed shaft penetrating the floor side supporting plate or the ceiling side supporting plate. Preferably, it is provided.
[0010]
By the way, the bearing portion structure according to the present invention can be applied as a bearing portion on one side wall surface and the other side wall surface, instead of the floor side and ceiling side bearing portions, and the truss structure can be arranged laterally. It is.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0012]
[Structure of truss structure]
FIG. 1 is a perspective view of the inside of the floor of the curtain wall surface constructed using the present truss structure, and FIG. 2 is a perspective view of the ceiling side of the curtain wall surface constructed using the present truss structure. FIG. 3 is a main part side view showing the lattice connecting portion.
[0013]
1 and 2, a panel group P made of various materials is supported by blinds 2, 2,... Arranged at predetermined intervals in a vertical direction to form a wall surface of a building or the like. Are supported by the truss structures 1, 1,.
[0014]
The truss structure 1 includes lattice members 5, 5... In which a front chord member 3 and a rear chord member 4 arranged in parallel at a predetermined interval are arranged in a warren truss shape (zigzag shape). Truss members connected by a truss surface, and the truss surface is arranged to be orthogonal to the panel P surface. The truss structure 1 has a lower end and an upper end supported by the floor surface F and the ceiling surface, respectively, and when the panel surface is subjected to wind pressure, a load acting on the panel surface is applied through the blinds 2, 2,. It is transmitted to the truss structure 1. In this case, the front chord 3 becomes a compression member, and the rear chord 4 becomes a tension member, and resists the wind load. Also, the truss structures 1, 1,... Are mutually connected by tie rods 6, 6,.
[0015]
The front chord material 3 and the rear chord material 4 (hereinafter, simply referred to as chord material) have a substantially horseshoe cross-sectional shape manufactured by extrusion, as shown in FIGS. A hollow member is used, and openings 7, 7,... Are formed in the longitudinal direction of the mating surfaces facing the chord material to be assembled. Shaft through-holes 8, 8 penetrating the chord members 3, 4 in a direction perpendicular to the plane are formed. The front chord member 3 and the rear chord member 4 are both formed of the same cross-sectional shape, so that they can be used in common regardless of whether they are the front side or the rear side.
[0016]
On the other hand, as shown in FIG. 6 and the like, the lattice members 5 have connection metal fittings 11 attached to both ends of a lattice body 10 having a hollow circular cross section. Attachment is performed by forming a screw groove in a hollow hole at the end of the lattice body 10 and screwing the male screw portion 11a of the connection fitting 11 into the end of the lattice body 10. Reference numeral 12 denotes a fixing screw screwed from the outer surface of the lattice body 10 toward the male screw portion 11a. The connection metal fitting 11 is an L-shape including a base plate 11A and a shaft insertion portion 11B standing upright at a position near one side of the base plate 11A, that is, a position eccentric with respect to the axis of the lattice body 10. The shaft insertion portion 11B is a member, and a shaft through hole 11b through which a support shaft is penetrated is formed.
[0017]
Connecting the lattice material 5,5 and chord 3 (4), as shown in FIG. 6, left on one side (illustrated shaft insertion portion 11B of the lower lattice member 5 _L with respect to lattice member axis with oriented so as to be), the other side of the shaft passage portion 11B of the upper lattice member 5 _U with respect to lattice member axis (oriented such that the right side) in the figure, these two lattice member 5 _L, 5 _U The shaft insertion portions 11B, 11B are overlapped with an intermediate washer therebetween. When the shaft insertion portions 11B, 11B are overlapped, the overall width of the shaft insertion portions 11B, 11B is slightly smaller than the inner space width of the chord members 3, 4.
[0018]
Next, as shown in FIG. 7, with the end washer 14, 14 disposed on the outer surface of the shaft insertion portion 11 </ b> B, 11 </ b> _L through the opening 7, the lattice material 5 _{L is} inserted into the chord material 3, 4. if the insertion of the end of the _{5 U,} the shaft holes 8, 8 and the shaft insertion portion 11B, the shaft through-hole 11b of the 11B, the connection of the tie rods 6, 6 provided through the 11b coaxially wherein the lower lattice member 5 _L and the upper lattice member 5 _U is pivotally supported by a shaft 15 which also serves.
[0019]
The support shaft 15 has screw portions 15a, 15a on both sides for connecting the tie rods 6, 6, respectively. On the other hand, the tie rod 6 has a socket 17 inserted into an end portion, and then the socket 17 is inserted into an end portion. A fixing portion 6a having a larger diameter than the hole is fixed. The connection of the tie rod 6 is performed by screwing a connection coupler 16 having a thread groove formed on an outer surface thereof to a screw portion 15a of a support shaft 15, and then screwing and connecting the socket 17 to the connection coupler 16. Is The tension of the tie rod 6 can be adjusted, for example, by attaching a turnbuckle (not shown) to an intermediate portion of the tie rod 6. FIG. 8 shows a state in which the connection of the lattice members 5, 5 has been completed and the connection of the tie rods 6, 6 has been completed. Instead of the tie rods 6, the truss structures 1, 1,... May be interconnected by tie cables.
[0020]
In the lattice members 5 and 5 connecting portions other than the portions where the tie rods 6 are connected, as shown in FIG. 9, instead of the support shaft 15, a disk-shaped shaft head 18a is provided at one end. provided with a support shaft 18 which female screw portion 18b is formed on the other end portion is used, after axially supporting the lattice material 5 _L, 5 _U, a circle having a screwed threaded portion 19a to the female screw portion 18b A plate-shaped shaft fixing member 19 is screwed.
[0021]
On the other hand, to the front chord members 3 of the truss structures 1, 1,. As shown in FIG. 10, the blind support 20 has a block body 20 </ b> A having a concave curved surface 20 a that matches the shape of the outdoor side surface 3 a of the front chord 3, and is integrated with the outdoor side surface of the block body 20 </ b> A. And a connecting shaft portion 20B having a female screw portion 20b facing outward, and fixed by fixing bolts 21 and 21 inserted into bolt through holes 20c and 20c formed in upper and lower portions, respectively. It is supposed to be.
[0022]
(Floor-side support structure)
Next, the floor-side support structure of the truss structure 1 described above will be described in detail with reference to FIGS.
[0023]
At the lower end of the truss structure 1, a lower end connecting member 26 for connecting the front chord 3 and the rear chord 4 is provided. The lower end connecting member 26 is a member in which a connecting shaft portion 26B having a circular cross section is formed in the upper edge portion of the plate-shaped portion 26A along the longitudinal direction of the member. Is formed. The connection with the front chord member 3 and the rear chord member 4 was performed by forming a connection piece material 27 having a male screw portion 27a and a connection piece material 28 having a male screw portion 28a on the end surface of the connection shaft portion 26B. The upper ends of the side portions are axially supported by shaft members 29, 30 which are screwed into the female screw portions 26b, 26b and penetrate the connecting piece members 27, 28 and the chord members 3, 4, and the inside of the chord members 3, 4 The lower end of the side portion is pivotally supported by shaft members 31 and 32 penetrating the end portions of the plate-like portion 26A inserted into the chord members 3 and 4. The shaft member 29 also serves as a shaft member that supports the lattice member 5.
[0024]
On the other hand, on the floor side, a floor-side support plate 25 extending from an embedded hardware (an embedded portion is not shown) embedded at the time of placing the floor concrete is provided.
[0025]
In order to support the lower end of the truss structure 1, the notch 26 a of the lower end connecting member 26 is engaged with the upper end of the floor-side support plate 25, whereby the floor-side support plate 25 is supported. Is supported as a bearing surface. In addition, in order to prevent deviation in the direction perpendicular to the plate surface, a pair of narrow attachment plates 33 and 34 that straddle the floor-side support plate 25 and the lower end connection member 26 are provided on both side surfaces, respectively, and the lower end connection is made. A fixed shaft member 35 penetrating the plate surface on the material 26 side is provided, and a fixed shaft member 36 penetrating the plate surface on the floor-side support plate 25 side is provided. In addition, even if the truss structure 1 is slightly inclined in an arbitrary direction, the inclination error can be absorbed even if the upper end surface of the floor-side support plate 25 has a gentle convex curved surface.
[0026]
(Ceiling side support structure)
Next, the above-described ceiling-side support structure of the truss structure 1 will be described in detail with reference to FIGS.
[0027]
At the upper end of the truss structure 1, an upper end connecting member 38 for connecting the front chord 3 and the rear chord 4 is provided. The upper end connecting member 38 is a member in which a connecting shaft portion 38B having a circular cross section is formed in the lower edge portion of the plate portion 38A along the longitudinal direction of the member, and a concave portion is formed at the center of the upper edge of the plate portion 38A. Is formed. The connection between the front chord member 3 and the rear chord member 4 is made by connecting a connection piece member 39 having a male thread portion 39a and a connection piece member 40 having a male thread portion 40a to female threads formed on the end face of the connection shaft portion 38B, respectively. The lower ends of the side portions are axially supported by shaft members 41, 42 which are screwed to the portions 38b, 38b and penetrate the connecting piece members 39, 40 and the chord members 3, 4, and are inside the chord members 3, 4. The upper end of the side portion is pivotally supported by shaft members 43 and 44 penetrating the end portion of the inserted plate-shaped portion 38A and the chord members 3 and 4. The shaft member 42 also serves as a shaft member that supports the lattice member 5.
[0028]
On the other hand, on the ceiling side, a ceiling-side support extending from an embedded metal (embedded portion is not shown) buried at the time of placing the concrete in the ceiling, and having a vertically extending deep groove 37a in the center of the lower edge. The plate 37 is hung.
[0029]
In order to support the upper end of the truss structure 1, the concave notch 38a of the upper end connecting member 38 is engaged with the ceiling-side support plate 37, and the deviation in the direction orthogonal to the plate surface is prevented. For this purpose, a pair of narrow attachment plates 45 and 46 are disposed on both side surfaces, respectively, straddling the ceiling-side support plate 37 and the upper end connecting member 38, and a fixed shaft member penetrating the plate surface on the upper end connecting member 38 side. 47, and a fixed shaft member 48 penetrating the plate surface on the ceiling-side support plate 37 side. The fixed shaft member 48 on the ceiling-side support plate 37 penetrates through the deep groove 37a of the ceiling-side support plate 37, so that a mounting error in the height direction can be absorbed.
[0030]
In this embodiment, the blind structure for supporting the panel is shown. However, the present invention can be similarly applied to any supporting structure such as DPG (dot point glazing). Further, instead of the floor-side and ceiling-side support portions, the present invention can be applied as a support portion on one side wall surface and the other side wall surface, and the truss structure 1 can be arranged in a horizontal direction and used as a horizontal member or the like. .
[0031]
【The invention's effect】
As described in detail above, according to the support structure of the truss structure according to the present invention, the truss structure can be easily installed and the appearance can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view of the inside of a floor of a curtain wall surface constructed using the present truss structure.
FIG. 2 is a perspective view of the inside of the ceiling side of the curtain wall surface constructed using the present truss structure.
FIG. 3 is a main part side view showing a lattice material connecting portion.
FIG. 4 is a view taken along line IV-IV of FIG. 3;
FIG. 5 is a view taken along line VV of FIG. 3;
FIG. 6 is a view showing a lattice material connection procedure (No. 1).
FIG. 7 is a view showing a lattice material connection procedure (part 2).
FIG. 8 is a view showing a lattice material connection procedure (3).
FIG. 9 is a view showing a lattice material connecting point other than a tie rod connecting portion.
FIG. 10 is a view showing how to attach a blind support 20;
FIG. 11 is an exploded view showing a structure of a floor-side support portion of the truss structure 1.
FIG. 12 is a side view showing a floor-side support portion of the truss structure 1.
FIG. 13 is a view taken along line XIII-XIII in FIG. 12;
FIG. 14 is a view taken along line XIV-XIV of FIG. 12;
FIG. 15 is an exploded view showing a structure of a ceiling-side support portion of the truss structure 1.
FIG. 16 is a side view showing a ceiling support portion of the truss structure 1.
FIG. 17 is a view taken along line XVII-XVII in FIG. 16;
FIG. 18 is a view taken along line XVIII-XVIII in FIG. 16;
FIG. 19 is a side view of a main part showing a conventional truss structure (part 1).
FIG. 20 is a main part side view showing a conventional truss structure (part 2).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Truss structure, 2 ... Eyeless, 3 ... Front chord material, 4 ... Rear chord material, 5 ... Lattice material, 6 ... Tie rod, 7 ... Opening, 8 ... Shaft through hole, 10 ... Lattice body, 11 ... Connecting bracket, 11B ... Shaft insertion part, 11b ... Shaft through hole, 15/18 ... Support shaft, 16 ... Connection coupler, 17 ... Socket, 20 ... Seamless support fitting, 21 ... Fixing bolt, 25 ... Floor side support Plate, 26: lower end connecting member, 26a: concave notch, 33, 34: narrow mounting plate, 37: ceiling support plate, 38: upper end connecting material, 38a: concave notch, 45, 46: narrow mounting plate, P… Panel

Claims (5)

The floor-side support portion structure of the truss structure in which the chord members arranged at a distance are connected by a plurality of lattice members arranged in an oblique direction and supported on the floor side and the ceiling side, respectively. hand,
Between the lower end chords of the truss structure, a lower end connecting member having a concave notch formed in a lower edge portion is horizontally laid, and a floor-side support plate is previously erected inside the floor frame outside. Buried the deposit,
While the upper end surface of the floor-side support plate is used as a bearing seat surface, the concave notch of the lower end connecting member is engaged with the floor-side support plate, and is detached by a pair of narrow attachment plates provided on both side surfaces. A support structure for a truss structure characterized by being restrained so as not to engage. The support structure of a truss structure according to claim 1, wherein an upper end surface of the floor-side support plate has a convex curved surface. The chord members spaced apart are connected by a plurality of lattice members arranged in an oblique direction, and the truss structure is supported on the floor side and the ceiling side. hand,
An upper end connecting member having a concave notch formed on an upper edge thereof is horizontally laid between upper end chord members of the truss structure, and a ceiling-side support plate is suspended inside the ceiling frame in advance. With the hardware buried,
A support for a truss structure, wherein a concave notch of the upper end connecting member is engaged with the ceiling-side support plate, and is irremovably restrained by a pair of narrow attachment plates provided on both side surfaces. Part structure. The fixed plate which penetrates a floor-side support plate or a ceiling-side support plate is provided in the narrow attachment plate, and a fixed shaft which penetrates a lower end connection material or an upper end connection material is provided. 3. The bearing structure of the truss structure according to 1. The truss structure according to any one of claims 1 to 4, wherein the truss structure is laterally arranged instead of the floor-side and ceiling-side support portions as one side wall surface and the other side wall surface. Bearing structure.

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