JPH0978735A - Bearing part structure of truss column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the height of a truss supporting material by forming a ceiling side bearing with a chord material upper shoe member to be inserted into an upper end side fitting hole and an anchor bearing part which is pin-connected to an chord material upper shoe member and fixed to the ceiling side. SOLUTION: A floor side bearing is provided at the lower end part of the front chord member 3 of a truss supporting material, a ceiling side bearing is provided at the upper end part of it, and the truss supporting material is supported on these bearings. Next the ceiling side bearing comprises a chord material upper shoe member 33 and an anchor bearing part 34 connected to the shoe member 33 through a pin 35. Then the rotating top end side of the shoe member 33 is used as an embedding part 33a which is inserted from the upper end opening of the chord material 3 into a hollow part, and a long through hole 33b is provided in the embedding part 33a in the longitudinal direction of the chord material. In addition, a movable side pin 36 is inserted into the through hole 33b, and the wall surface upper end parts 3i and 3j of the fitting groove for lattice connecting metal fitting MF and the fitting groove for panel supporting metal fitting Nr are notched. Thus the shoe member 33 can be connected movably in the longitudinal direction of the chord material, and the height of the truss supporting member can be adjusted easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss pillar used as, for example, a panel support structure or the like, and to a floor side and ceiling side support portion structure thereof.

[0002]

2. Description of the Related Art For example, in the case of a curtain wall applied to the first and second floors of a building and the like, as shown in FIG. , 49 are arranged in the vertical direction, and the curtain wall panel 48 is attached through the vertices 58 fixed to the truss support members 49, 49, ... .

The curtain wall will be described in detail with reference to FIGS. 20 and 21. First, in the truss support member 49, the rear chord member 50 and the front chord member 51 are arranged in parallel at a predetermined interval. The two chord members 50 and 51 are lattice members (diagonal members) 54 and 5 arranged in a warren truss shape.
The chord members 50 and 51 are connected to the lattice member 54 by using, for example, a gusset plate 52 having a substantially T-shaped cross section, and the head flange 52a of the gusset plate 52 is connected to the chord member 50. , 51 are fitted in the fitting grooves formed inside, the backing material 53 is attached with the support wall sandwiched, and bolts 55, 55 ... Penetrating these are screwed to fix the gusset plate 52. Done,
Next, a lattice member 54 is connected between the gusset plates 52, 52 by a passing pin 59.

On the other hand, in recent years, curtain wall construction methods have been diversified, and a construction method in which a transparent plate glass is used on the entire outer wall is also adopted in consideration of aesthetics and daylighting. In the past, when plate glass was used for the panel surface, the main method was to support it with a metal frame material in consideration of wind resistance, earthquake resistance, etc. With the development of glass, it has become possible to meet the high demands for aesthetics, and without the use of a frame frame, the tempered glass is arranged vertically and horizontally adjacent to each other, and this tempered glass is directly supported by a supporting metal object. The construction method has been developed and many construction results are left.

In this frameless construction method, for example, as shown in FIG. 3, four adjacent panels are directly and commonly supported by an X-shaped panel supporting device 1. 1 is fixed to a structural support (not shown). As the structural support for supporting the panel support device 1, a square column member may be used, but the truss support material 49 is preferably used especially when the height of the blow-through space is high. .

[0006]

However, in the case of the above-mentioned conventional truss support member 49, as shown in FIG. 19, a support member 61 which is simply pin-connected to the upper and lower ends of the support-side chord member 51 is provided. In this structure, the support member 61 is fixed to the skeleton of the floor or ceiling. When the distance between the floor and the ceiling, which is the fixed surface, and the height of the truss pillar do not match, the adjustment mortar is struck on the floor surface. Therefore, it is necessary to adjust the level by setting it, or to insert a filler material between the support member and the fixed surface. Therefore, truss support 4
It took a lot of trouble and time to build 9. In addition, in the case of such a truss structure, the axial force generated in each lattice member is the largest in the lattice member at the end, so there is a large shearing force especially for the lattice connecting fittings fixed to the upper and lower ends of the supporting chord member. Proof strength is required.

Therefore, the main object of the present invention is to make it possible to easily adjust the height of the truss pillar according to the distance between the floor side surface and the ceiling side surface which support the truss pillar, and the relationship with the bearing structure. It is an object of the present invention to provide a support portion structure for a truss column that effectively enhances the shear strength of the lattice connecting fittings fixed to the upper and lower ends of the supporting chord member.

[0008]

In order to solve the above-mentioned problems, according to the present invention, the chord members arranged at a distance are connected by a lattice member arranged in an oblique direction,
One of the chord members is a supporting portion structure in a truss pillar supported on the floor side and the ceiling side, respectively, and at least upper and lower ends of the chord members on the supporting side have fitting holes in the member longitudinal direction that open to the end face side. The floor support includes a chord member lower shoe member which is inserted into the lower end side insertion hole and vertically supports the truss weight, and an anchor bearing member which is pin-connected to the chord member lower shoe member and fixed to the floor side. The ceiling-side bearing is composed of a chord member upper shoe member inserted into the upper-end fitting hole, and an anchor bearing member fixed to the ceiling side by being pin-connected to the chord member upper shoe member. To do.

In the case of the present invention, the floor side bearing is first fixed in the state where the truss pillar is built in, and then, when fixing the ceiling side bearing, according to the height of the ceiling surface of the chord member. The insertion depth of the upper chord member of the chord member inserted in the upper end side fitting hole is appropriately adjusted, and the anchor support member is fixed to the ceiling side. Therefore, the height of the truss pillar can be easily adjusted to the distance between the floor side surface and the ceiling side surface without adjusting the floor level or adjusting the distance between the top and bottom unlike the conventional case. Further, it is possible to absorb thermal expansion and contraction, creep deformation of skeleton concrete, displacement due to live load, and the like.

In this case, in the floor-side bearing portion, the chord member lower-side trough member is non-movably connected and fixed by the fixed-side pin inserted through the chord member lower-side trough member, and the ceiling-side bearing portion. In the above, it is preferable that the upper chord member of the chord member is movably connected to the upper chord member of the chord member by a movable pin loosely inserted in an elongated hole formed in the upper chord member of the chord member in the longitudinal direction of the chord member.

Further, recesses are formed on the back surfaces of the lattice connecting fittings fixed to the upper and lower ends of the supporting chords, respectively, and the ends of the fixed and movable pins are fitted into the recesses. As a result, it is possible to effectively increase the shear strength of the lattice connecting fittings fixed to the upper and lower ends of the supporting-side chord member.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view of a curtain wall installed state by a frameless method, and FIG. 2 is II in FIG.
It is a line II arrow line view.

In FIG. 1, a panel group P, P ... Comprising tempered glass, laminated glass, or multi-layered glass, etc., which constitutes a wall surface of a building or the like, does not use a frame frame, and each panel is in substantially the same vertical plane. As shown in FIG. 3, the general portions are arranged adjacent to each other in the vertical and horizontal directions with the corner portions of P facing each other, and by the X-shaped panel support device 1 placed at each corner intersection of the panel P, The skeleton adjacent portions adjacent to the skeleton of the building are respectively supported by the I-shaped panel support device 1A. This type of frameless construction method is suitable for use in large spaces due to stairwells, and can create an open amenity space due to the transparency of glass in a closed building space. It is a wall construction method. In addition,
A seal S is continuously provided in a slight gap between the panels P and P.

As shown in FIG. 2, the panel supporting device 1 is fixed to a truss supporting member 2 which is disposed, for example, on the room rear side of the panel from the floor surface to the ceiling, and the tip end side thereof is fixed. It supports the panel P.

In the truss support member 1, front chord members 3 and rear chord members 4 arranged in parallel at a predetermined interval are connected by lattice members 5, 5, ... Arranged in a warren truss shape. It is a flat truss material, and the truss surface is arranged perpendicular to the panel P surface. If the panel surface receives wind pressure,
The load on the panel surface is transmitted through the panel supporting devices 1 and 1A and finally supported by the truss supporting member 2. In this case, the front chord member 3 serves as a compression member and the rear chord member 5 serves as a tensile member to resist a load. Further, in order to keep the truss surfaces of the truss support members 2, 2 ... Always in the same plane, the rear chord members 4,
.. are connected to each other by tie rods 6, 6.

The front chord member 3 and the rear chord member 4 (hereinafter,
It is also simply called chord material. 4), as shown in FIG. 4, for example, a substantially rectangular hollow mold material manufactured by extrusion molding is used. The front chord member 3 is continuously provided with substantially L-shaped lip pieces 3a to 3d at each corner, and on the indoor surface side, the lip pieces 3a and 3b are paired to form a fitting groove M for a lattice coupling fitting. _F is formed, and on the opposite side (corresponding to the outdoor side surface), the lip pieces 3c and 3d are paired to form a fitting groove N for the panel support fitting
_F is formed. Similarly, the front chord member 3 is also provided with substantially L-shaped lip pieces 4a to 4d continuously at each corner, and the lip pieces 4a and 4b are paired on the outdoor side to fit a lattice connecting fitting. A groove M _B is formed, and a panel support fitting fitting groove N _B is formed on the opposite side (corresponding to the indoor side surface) of the lip pieces 4 c and 4 d as a pair. The chord member cover member 9 is fitted to the fitting grooves M _F , N _F, ... Except where the lattice connecting fitting 7, the panel support fitting 20 and the like are provided, and aesthetics are taken into consideration. The front chord member 3 and the rear chord member 4 are made of the same shape and can be commonly used regardless of whether they are the front side or the rear side.

On the other hand, as shown in FIG. 5, the lattice member 5 has connecting metal fittings 13 attached to both ends of the lattice main body 10 having a substantially rectangular cross section. For mounting, female screw holes 10a are formed on the end surface of the lattice main body 10, and the seat plate 11, the spring washer 12, the connecting fitting 13, and the flat washer 14 are arranged in this order from the side of the lattice main body 10, and the fixing bolts inserted through these. 15 is fixed by being screwed into the female screw hole 10a. The connecting metal fitting 13 has a through hole 13b for inserting the fixing bolt 15 in the center thereof, and a disc-shaped shaft is provided on one side thereof, that is, at a position eccentric with respect to the axis of the lattice member 5. It has an insertion portion 13a. The spring washer 12 can change the position of the connecting metal fitting 13 by adjusting the screwing amount of the fixing bolt 15 at the same time as preventing the fixing bolt 15 from rotating, so that a mounting error can be absorbed. It is like this.

[0018] On the other hand, lattice coupling fitting 7, as shown in FIG. 6, the fitting groove M _F of chord 3 and 4 around the base plate step portion 7b is formed for fitting the M _B A disk-shaped bearing portion 7c is provided on the front surface of 7a.

In attaching the lattice member 5, first, the lattice connecting fitting 7 is fixed to predetermined positions of the front chord member 3 and the rear chord member 4. Fitting groove M _F from the end of the lattice coupling fitting 7 only requires a few minutes chord 3, 4 are mounted in a state of freely moving into the fitting by members longitudinally M _B. On the other hand,
At the mounting position of the lattice connecting fitting 7 of the chord member 3 (4), as shown in FIG. 6, for the mounting screw holes 3g, 3h and the shear supporting bosses 8a, 8b formed in the backing member 8, as shown in FIG. The boss fitting holes 3e, 3f are formed, the backing material 8 is inserted into the hollow portion of the chord member 3 (4), and the backing material 8 is temporarily fixed by the mounting screws 18, 18. In this temporarily fixed state, the shear support bosses 8a and 8b of the backing material 8 are fitted into the boss fitting holes 3e and 3f, but the backing material 8 is loose due to the play of the mounting screw 18 (depression). The shear support bosses 8a and 8b project outward from the surfaces of the fitting grooves M _F and M _B , and the lattice connecting fitting 7
Be careful not to interfere with the movement of.

Next, the lattice connecting fitting 7 is slid and positioned in the hole forming portion.

In this state, the mounting screw 18 is screwed in,
The backing material 8 is fixed in the state shown in FIG. The backing material 8 is attracted to the inner wall surface side by screwing the mounting screw 18, and the shearing support bosses 8a and 8b of the backing material 8 are fitted into the boss fitting holes 3e and 3f, and the lattice connecting metal fittings. 7
Also, the concave portion 7e formed on the back surface side of the is temporarily fixed with its tip fitted. When the temporary fixing work is completed, the lattice connecting fitting 7 and the backing material 8 are finally fixed by the fixing bolts 19 inserted from the outer surface side of the lattice connecting fitting.

In the case of such a fastening structure, the backing material 8
Since the shearing bosses 8a and 8b formed on the shaft support the shearing force acting on the lattice connecting fitting 7, the strength is excellent. Further, since the fixing bolt 19 does not directly bear the shearing force, a relatively small diameter bolt member can be used, and the number of bolts does not need to be large. It should be noted that the shear support bosses 8a and 8b may be formed on the lattice connecting metal fitting 7 side under structural conditions in which the lattice connecting metal fitting 7 does not fit into the fitting grooves M _F and M _B. Further, in this example, the screwing holes of the fixing bolt 19 are formed in the shear support bosses 8a and 8b, but they may be formed separately. In any case, the shearing force acting on the lattice connecting fitting 7 is supported by the backing material 8 or the boss formed on the side of the lattice connecting fitting 7 instead of the fixing bolt 19. The panel support fitting 20 is fixed in exactly the same manner.

Next, when the fixing of the lattice connecting fitting 7 is completed, the lattice members 5, 5, ... Are attached. The shaft member 16 is inserted with the bearing portion 7c of the lattice connecting fitting 7 in the center and the shaft insertion portions 13a of the lattice member 5 are located on both sides of the bearing member 7c.
To support them in common. Reference numeral 17 is a shaft cover attached to the end of the shaft member 16.

In the case of such a connecting structure, the lattice members 5 can be connected easily and quickly, and substantially the lattice members 5 can be connected.
Since only the connecting shaft portion of is visible from the outside, the aesthetic appearance given by the truss support member 2 is also very slender.

On the other hand, as shown in FIG. 9, the connecting structure of the tie rods 6 is directly connected to the shaft member connecting the lattice members 5 and 5. As shown in FIGS. 10 and 11, the shaft member 21 used for the connecting portion of the tie rod 6 has the bearing portion 7c and the shaft insertion portion 1 at the center.
3a, and a tie rod connecting screw portion 21a, 21b on both sides thereof. On the other hand, after inserting the socket 24 into the end portion of the tie rod 6, the fixing balls 23 are fixed in a beaded shape. The tie rod 6 is connected by the tie rod connecting screw portions 21a, 21.
connection coupler 22 having a thread groove on the outer surface with respect to b
After screwing, the socket 24 is screwed and connected to the connecting coupler 22. The tension of the tie rod 6 can be adjusted by rotating the connecting coupler 22 in the forward and reverse directions to change the fixing point position of the tie rod 6. Instead of the tie rods 6, tie ropes may connect the truss support members 49 to each other.

Next, the support structure of the truss support member 2 on the floor side and the ceiling side will be described in detail. As shown in FIG. 2, a floor support 25 is provided at the lower end of the front chord member 3 of the truss support member 2, and a ceiling support 32 is provided at the upper end thereof. Support material 2
Is supported.

As shown in FIGS. 12 to 14, the floor-side support 25 includes a lower chord member 26 and an anchor support member 27 connected to the lower chord member 26 by a pin 28. Consists of. The pivoting tip side of the lower chord member 26 serves as an embedded portion 26a which is inserted into the hollow portion through the lower end opening of the front chord member 3. The through hole 2 is formed in the embedded portion 26a.
6b is formed, and a fixed side pin 29 is provided through the through hole 26b so as to penetrate from one side surface side of the front chord member 3 to the other side surface side, and the chord member lower shoe member 26 and the front chord member 3 are connected and fixed. In addition, the truss support member 2 is supported in the vertical direction by the step portions 26c, 26c formed on the side surface portion of the lower chord member 26 being engaged with the lower end of the front chord member 3. The embedded portion 26 of the lower chord member 26 is inserted into the lower end opening of the chord member 3 without providing the fixed pin 29.
It is also possible to support the truss support member 2 only by inserting a.

Further, the fitting groove M _F side end portion of the fixed pin 28 is formed to protrude slightly more fitting groove M _F face, the recess 7e formed on the back side of the lattice connecting fitting 7 The fixed side pins 28 support the shearing force acting on the lattice connecting fitting 7.
In this case, the fixing bolt 30 for attaching the lattice connecting fitting 7 is screwed into the female screw hole 29a formed in the fixed pin 30. Since the fixed side pin 30 has a diameter sufficient to support the weight of the truss support member 2, the shear strength of the lattice connecting fitting 7 supported by the fixed side pin 30 is also large as a result. Will be things. The other end of the lattice connecting fitting 7 is fixed using a backing material 8A having a shearing support boss 8c formed therein, as in the above-described structure.

The anchor support member 27 comprises a lumber block 27A directly connected to the lower chord member 26 of the chord member and angle members 27B and 27C fixed to the lumber block 27A by welding or the like. ,
27C is fixed to the floor side structure by anchor bolts 31. The line L _G is the level line of the final floor surface.

On the other hand, the ceiling-side bearing 32, as shown in FIGS. 16 to 18, is an upper chord member 33 of the chord member and an anchor bearing member 34 connected to the upper chord member 33 of the chord member by a pin 35. Consists of. The pivoting tip side of the upper chord member 33 serves as an embedding portion 33a which is inserted into the hollow portion through the upper end opening of the front chord member 3. A through-hole 33b that is long in the longitudinal direction of the chord member is formed in the embedded portion 33a, and a movable-side pin 36 that penetrates from one side surface side of the front chord member 3 to the other side surface side is inserted into the penetrating elongated hole 33b. together, lattice coupling fitting fitting groove M _F and panel support bracket fitting groove N _F of the wall upper portion 3i, by 3j is notched,
The upper chord member 33 is movably connected in the longitudinal direction of the chord. Also in this case, the truss support member 2 is supported only by inserting the embedded portion 33a of the upper chord member 33 into the upper end opening of the front chord member 3 without providing the movable side pin 36. You can also

Further, similar to the structure for attaching the lattice connecting fitting 7 in the floor side support 25, the movable side pin 36 is provided.
Fitting groove M _F side end portion is formed to protrude slightly more fitting groove M _F surface, fitted against the concave portion 7e formed on the back side of the lattice connecting fitting 7, movable side pin The shearing force acting on the lattice connecting fitting 7 is supported by 36. Also in this case, the fixing bolt 37 for fixing the lattice connecting fitting 7 has the female screw hole 36 formed in the movable pin 36.
It is screwed to a.

The anchor support member 34 comprises a shoe block 34A directly connected to the upper chord member 33 of the chord member and angle members 34B and 34C fixed to the shoe block 34A by welding or the like, and the angle member 34B. ,
34C is fixed to the structure on the ceiling side by anchor bolts 38. The line L _U is the final level line of the ceiling surface.

[0033]

As described above in detail, according to the support structure of the truss pillar according to the present invention, the height of the truss pillar is easily adjusted according to the distance between the floor side surface and the ceiling side surface supporting the truss pillar. It is possible to absorb thermal expansion and contraction, creep deformation of skeleton concrete, displacement due to live load, etc. after completion of construction. Further, there is an advantage that the shearing resistance of the lattice connecting fittings fixed to the upper and lower ends of the supporting chord member can be effectively increased.

[Brief description of drawings]

FIG. 1 is a front view after a curtain wall is installed.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a perspective view of a panel supporting state of a general portion.

FIG. 4 is a perspective view of a main part of a truss support member.

FIG. 5 is an assembly procedure diagram of a lattice material.

FIG. 6 is an assembly procedure diagram of a truss support member.

FIG. 7 is a vertical cross-sectional view of a lattice material connecting portion.

8 is a view taken along the line VIII-VIII of FIG.

FIG. 9 is a perspective view of a connecting portion of a tie rod.

FIG. 10 is a horizontal sectional view of a tie rod connecting portion.

FIG. 11 is an assembly procedure diagram of a tie rod connecting portion.

FIG. 12 is a side view of a floor-side support portion.

FIG. 13 is a view taken along line XIII-XIII in FIG. 12;

FIG. 14 is a view taken along line XIV-XIV in FIG.

FIG. 15 is a view taken along line XV-XV in FIG. 14;

FIG. 16 is a side view of a ceiling-side bearing portion.

17 is a view taken along line XVII-XVII in FIG.

18 is a view taken along line XVIII-XVIII of FIG.

FIG. 19 is a perspective view showing a state in which a conventional truss support member supports a curtain wall.

FIG. 20 is a side view of a part of the truss support member with a part broken away.

FIG. 21 is a horizontal cross-sectional view showing a state where the truss support member supports the curtain wall.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Panel support device, 2 ... Truss support material, 3 ... Front chord material, 4 ... Rear chord material, 5 ... Lattice material, 6 ... Tie rod, 7
... Lattice connecting fittings, 8 ... Backing material, 9 ... Chord covering material,
10 ... Lattice body, 11 ... Seat plate, 12 ... Spring washer, 13 ... Connection metal fitting, 13a ... Shaft insertion part, 16 ...
Shaft member, 17 ... Shaft cover, 18 ... Mounting screw, 19 ... Fixing bolt, 20 ... Panel support fitting, 21 ... Shaft member, 21a
21b ... Tie rod connection screw part, 21c ... Journal part, 22 ... Connection coupler, 23 ... Fixing ball, 24 ... Socket, 25 ... Floor support, 26 ... Chord lower member, 27
Anchor bearing member, 28/35 ... Pin, 32 ... Ceiling side bearing, 33 ... Chord upper upper member, 34 ... Anchor bearing member,
P ... Panel

Claims (3)

[Claims] 1. A truss pillar in which chord members arranged at a distance are connected to each other by a lattice member arranged in an oblique direction, and one of the chord members is supported on a floor side and a ceiling side, respectively. A support portion structure, wherein at least upper and lower ends of the support-side chord member have insertion holes in the longitudinal direction of the member that open to the end face side, and the floor-side support is inserted into the lower-end-side insertion hole to vertically load the truss weight. A lower chord member for supporting the chord member, and an anchor bearing member fixed to the floor side by being pin-connected to the lower chord member for the chord member. The ceiling bearing is a chord member inserted into the upper end fitting hole. A support structure for a truss column, comprising an upper shoe member and an anchor bearing member that is pin-connected to the chord member upper shoe member and fixed to the ceiling side. 2. In the floor-side bearing portion, the chord member lower-side trough member is non-movably connected and fixed by a fixed-side pin that penetrates through the chord member lower-side trough member, and in the ceiling-side bearing portion. 2. The truss according to claim 1, wherein the upper chord member of the chord member is movably connected to the upper chord member of the chord member by a movable pin that is loosely inserted in an elongated hole formed in the upper chord member of the chord member in the longitudinal direction of the chord member. Support structure of the pillar. 3. A recess is formed in the back surface of a lattice connecting fitting fixed to the upper and lower ends of the supporting chord member, and the ends of the fixed pin and the movable pin are fitted into the recess. The support portion structure of the truss pillar according to claim 2.