JP4117788B2 - Curtain wall vertical support structure and construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a curtain wall structure in which a vertical is supported by a truss structure system member arranged in a lateral direction, and a construction method thereof.
[0002]
[Prior art]
The curtain wall structure has a structure in which the panel is supported by vertical vertical members fixed to the housing at a predetermined interval in the horizontal direction and a large number of eyes extending between the vertical walls. There are many on the market.
[0003]
In addition, at the entrance and the like, when there is a request such as forming a large blow-through space that emphasizes the glass surface, only the vertical member cannot withstand the wind load or earthquake load acting on the glass surface. As shown in FIG. 9, main chord members 51 and 52 arranged substantially in parallel with a predetermined interval, and lattice materials (diagonal members) 53 and 53 for connecting the main chord members 51 and 52 in a zigzag manner. A vertical support structure in which reinforcement is achieved by fixing a truss frame 50 composed of the following to the building frame and fixing the vertical frame 54 to the outdoor side of the truss frame 50 is mainly employed (for example, the following patents) Reference 1).
[0004]
Further, in Patent Document 2 below, in the case of the vertical support structure described in Patent Document 1, in order to solve the problem that a number of truss frames are visible and the appearance is very bad when viewed from the indoor side. As shown in FIG. 10, longitudinal truss frames 50 are respectively arranged on the indoor side portions of the two stands 57, 57 located between the plurality of stands 54, 54. The lower part and the upper part are respectively connected to the frame, and a lateral truss frame 55 is disposed between the longitudinal intermediate portions of the left and right vertical truss frames 50, 50. .. Are connected to the longitudinal truss frame 55 and the building frame, and tension members 56, 56... Directional truss frame 55 When trying to displace the in-plane direction, mullions reinforcing structure tension to the tension member 56 ... is to inhibit the action displaced is disclosed.
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 4-137115 [Patent Document 2]
Japanese Patent Laid-Open No. 9-111930
[Problems to be solved by the invention]
By the way, in the case of considering a structure in which a truss frame is arranged in the horizontal direction and supports a vertical position regardless of the presence or absence of the vertical truss frame, if the method of Patent Document 2 is applied, the lateral truss A structure in which the left and right ends of the frame are fixed to a structure such as a floor frame or a column and reinforced with a tension material to suppress the displacement of the lateral truss frame is employed. However, in this case, the structural waste due to the use of the lateral truss frame as it is becomes remarkable, and since a tension material is present on the glass surface, an open impression cannot be obtained. A problem occurs.
[0007]
In addition, in the case of a vertical support structure using the lateral truss frame, the vertical attachment point is an intersection of lattice materials from a structural viewpoint, so the vertical position (horizontal position in the plane) is Adjustment becomes impossible and problems such as inability to deal with construction errors also occur.
[0008]
Therefore, the main problem of the present invention is that the curtain wall structure in which the vertical is supported by the laterally arranged truss structure system member eliminates structural waste and cleans the appearance, and reduces the number of members to reduce the cost. An object of the present invention is to provide a vertical support structure for a curtain wall and a method for constructing the curtain wall, which is designed to make the glass surface open by eliminating the tension material.
[0009]
Another problem is that the vertical position (horizontal position in the plane) cannot be adjusted and problems such as being unable to cope with construction errors are eliminated.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, as a first aspect of the present invention, a floor frame or a structure disposed in a lateral direction is used as a support, and one end is connected to the support and a triangle having an intersection on the outdoor side is formed. In addition, a diagonal support structure for a curtain wall is provided, characterized in that diagonal materials are provided and the vertical materials are supported at the outdoor intersections of the diagonal materials.
[0011]
In the present invention, the truss structure system member arranged in the lateral direction for supporting the curtain wall is configured such that the main chord material is omitted and the truss structure system is constituted only by the diagonal material. Even if the main chord material is omitted, it is possible to stably support wind loads and earthquake loads acting from the curtain wall by connecting one end of the diagonal material directly to the frame etc., and in the out-of-plane direction ( Since the displacement in the indoor / outdoor direction and the in-plane direction (panel surface direction) can be suppressed, the tension material can be eliminated.
[0012]
Therefore, by eliminating the main chord material, the appearance can be made clear, and the cost can be reduced by reducing the number of members. Moreover, an open impression can be given to the glass surface by eliminating the tension material.
[0013]
According to a second aspect of the present invention, there is provided a curtain wall vertical support structure according to the first aspect, wherein the diagonal member is adjustable in member length.
[0014]
In the present invention according to the second aspect, since the member length of the diagonal member can be adjusted, the outdoor intersection point position, that is, the vertical mounting position can be adjusted within a predetermined range, so that it can cope with a construction error. At the same time, it is possible to easily correct the twist in the direction of the vertical due to the construction error of the frame or the like.
[0015]
As the present invention according to claim 3, an intermediate connector is interposed between the outdoor intersection of the diagonal member and the vertical, and the intermediate connector is arranged along the vertical direction. A curtain wall vertical support structure according to claim 1 or 2 suspended by a rod is provided.
[0016]
In the present invention described in claim 3, since the truss structure system member constituted only by the diagonal member is in a so-called cantilever state, the downward displacement is likely to occur at the distal end portion (outdoor end portion). Therefore, by suspending the intermediate connecting member interposed between the outdoor intersection of the diagonal members and the vertical by the suspension rope or the suspension rod, it is possible to eliminate the downward displacement at the vertical attachment portion.
[0017]
The present invention according to claim 4 is a construction method of the curtain wall vertical support structure according to any one of claims 1 to 3,
Prior to mounting, the diagonal member is connected in a hinge state in advance by a member connecting the diagonal members at the outdoor intersection and / or the indoor intersection, and fixed at a predetermined mounting position. A method for constructing a curtain wall vertical support structure is provided.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is an external view of a curtain wall according to the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view taken along the line III-III in FIG.
[0019]
As shown in FIG. 2, the curtain wall structure 1 has a floor frame F as a support, and a truss structure support frame 4 (hereinafter simply referred to as a support frame) having one end connected to the support side. The vertical vertical members 2, 2... Arranged at predetermined intervals in the horizontal direction at positions separated from the floor frame F, and a large number of blinds spanned between the verticals 2, 2. A curtain wall wall surface CW composed of a panel made of glass or the like fitted and supported in a frame constituted by 3, 3.
[0020]
As shown in FIG. 3, the support frame 4 has one end connected to the floor frame F side and a large number of diagonal members 5, 5... So as to form a triangle having an intersection on the outdoor side. The stand 2 is supported via the intermediate connector 6 at the outdoor intersection of the diagonal members 5, 5.
[0021]
That is, in the curtain wall structure 1, bracket brackets 7, 7... Are fixed to the ends of the floor frame F in the support frame 4, and one end side of the diagonal members 5, 5. The conventional main chord material is eliminated by connecting with the nut 23, connecting the other end of the diagonal members 5 and 5 on the outdoor side, and supporting the vertical 2 via the intermediate connector 6. At the same time, the tension material is eliminated.
[0022]
As shown in FIG. 4, the wind load and the earthquake load acting on the curtain wall wall surface CW act on the outdoor intersections of the diagonal members 5 and 5 through the vertical 2 and the seamless 3. The V-shaped structure composed of the diagonal members 5 and 5 has a truss structure that is mechanically stable, ensuring a balance of forces and maintaining displacement in the in-plane direction. Therefore, even with the support frame 4 using only the diagonal members 5, 5... Without the main chord member and the tension member, it is possible to sufficiently support wind loads and earthquake loads acting on the curtain wall wall surface CW. It has become.
[0023]
On the other hand, the intermediate connector 6 interposed between the outdoor intersections of the diagonal members 5 and 5 and the vertical 2 enables three-dimensional adjustment of the vertical 2 in-plane and vertical adjustments. It is a connection tool for. Hereinafter, the intermediate connector 6 will be described in detail with reference to FIGS.
[0024]
The intermediate connector 6 includes a first adjuster 10 that performs coupling of the outer ends of the diagonal members 5, 5, in-plane horizontal adjustment, and vertical adjustment, and the first adjuster 10 is vertically supported. 2 and a second adjuster 16 that performs out-of-plane direction adjustment (indoor / outdoor direction adjustment).
[0025]
As shown in FIG. 7, the first adjuster 10 is a member formed by cross-linking the horizontal plate portion 10A and the vertical plate portion 10B with a slight shift in the indoor and outdoor directions. The through holes 10 a and 10 a are formed on the left and right sides, and the end portions of the diagonal members 5 and 5 are connected by the shaft member 22 and the washer nut 23. The vertical plate portion 10B has long holes 10b and 10b that are long in the vertical direction in the upper and lower portions, a circular hole 10c is formed in the approximate center, and sandwiching plates 12A, which will be described later, on both sides. In order to prevent misalignment with 12B, fine ridges (jagged edges) are formed along the horizontal direction.
[0026]
Clamping plates 12A and 12B are arranged on both side surfaces of the vertical plate portion 10B, respectively. The sandwiching plates 12A and 12B have round holes 12a and 12a formed in the upper and lower portions, respectively, and a long hole 12b that is long in the vertical direction is formed in the approximate center, and are not slipped on the contact surface with the vertical plate portion 10B. For this reason, fine ridges (jagged edges) are formed along the horizontal direction.
[0027]
Hollow screw members 11, 11 whose outer surfaces are threaded are provided so as to pass through the round holes 12a, 12a of the clamping plates 12A, 12B and the long holes 10b, 10b of the vertical plate portion 10B, and the clamping plate The vertical plate portion 10B is supported on the outer surface side of 12A, 12B by fastening nuts 13, 13,... And the bolts 14 are inserted into the long holes 12b of the holding plates 12A, 12B and the vertical plate. The round hole 10c of the part 10B is inserted and fastened.
[0028]
Therefore, in order to perform the in-plane horizontal adjustment and the vertical adjustment, the shaft member 18 is inserted through the hollow portion of the hollow screw member 11 and the first adjustment tool 10 and the second adjustment tool 16 are connected as will be described later. In this state, the fastening nuts 13 and 13 and the bolts 14 are loosened and the in-plane horizontal position and the vertical position of the second adjuster 16 are adjusted, and then the fastening nuts 13 and 13 and the bolts 14 are fastened. What is necessary is just to fix so that the vertical board part 10B may be pinched | interposed by 12A, 12B.
[0029]
As shown in FIG. 4, the connecting portions 5A and 5A at both ends of the diagonal member 5 are screwed and connected in a reverse screw relationship, so that the shaft portion is rotated around the shaft center just like a turnbuckle. It is also possible to adjust the in-plane horizontal position and the out-of-plane direction position of the intermediate coupler 6 by adjusting the lengths of the respective members by rotating them. Further, since the construction accuracy of the floor frame F is poor, the adjustment in the case where the intermediate connector 6 is twisted can also be adjusted by adjusting the lengths of the diagonal members 5 and 5.
[0030]
The second adjustment tool 16 connected to the first adjustment tool 10 is a member having an H-shaped cross section, and the vertical plate portion 10B of the first adjustment tool 10 is inserted into the indoor recess 16a, and the outdoor recess 16b. A vertical thread 2 is inserted in the longitudinal direction. In the indoor recess 16a, long holes 16c that are long in the indoor / outdoor direction are formed on both sides, and in the outdoor recess 16b, round holes 16d are formed on both sides. Further, a pocket-shaped groove is formed in the web 16e of the second adjustment tool 16, and is suspended by a suspension line or a suspension rod 17 inserted through the pocket-shaped groove. 6 shows an example of suspension using a suspension rod, and FIG. 7 shows an example of suspension using a suspension rope (such as a suspension wire).
[0031]
As shown in FIG. 5, the vertical plate portion 10B of the first adjuster 10 is inserted into the indoor recess 16a of the second adjuster 16, and the long hole 16c and the hollow portion of the hollow screw member 11 are inserted from the outer surface side. The shaft member 18 is inserted through and is fastened by a nut washer 19 on the outer surface side of the recess 16a. In addition, fine concaves and convexes (grays) are formed along the vertical direction on the outer surface side of the indoor recess 16a and the contact surface of the washer 19 to prevent displacement. Therefore, in order to adjust the out-of-plane direction position, the nut washer 19 may be tightened after adjusting the indoor / outdoor direction position of the second adjuster 16 with the nut washer 19 loosened.
[0032]
On the other hand, in the outdoor recess 16b of the second adjuster 16, the indoor hollow portion 2A of the vertical 2 is inserted, and the round holes 16d and 16d formed in the side surface of the outdoor recess 16b, and the indoor hollow portion The positions of the round holes 2a and 2a formed in 2A are aligned, the shaft member 20 is inserted, and the outer surface side of the outdoor recess 16b is fastened by the nuts and washers 21 and 21.
[0033]
The panel support structure using the vertical 2, 2,..., And the seamless 3, 3,.
[0034]
By the way, in constructing the support frame 4, it is possible to attach the diagonal members 5, 5 ... one by one, but since the construction takes a lot of time and effort, the oblique members 5, 5 ... Prior to mounting (for example, at the factory or at the site), the diagonal fittings 7 and the first adjuster 10 are connected in a hinge state in advance at the outdoor intersection and / or the indoor intersection. It is desirable to lift it with a crane or the like in this assembled state and fix it at a predetermined mounting position.
[0035]
By connecting the diagonal members 5 and 5 in a hinged state in advance, for example, when transported from a factory, it can be folded and carried into the site in a compact state. Since the installation can be performed at once, the construction efficiency can be improved. The diagonal members 5, 5... May be connected at both the outdoor intersection and the indoor intersection, or only on either side. Further, as in another embodiment (2) to be described later, when the set state of the diagonal members 5 and 5 is V-shaped, the two diagonal members 5 and 5 are connected to the first outdoor member. What is necessary is just to make it connect with the adjustment tool 10. FIG.
[0036]
[Other examples]
(1) In the above-described embodiment, one end of the diagonal member 5 is connected to the floor frame F. However, a structure body, for example, a horizontal beam or the like arranged in the lateral direction may be used as the support body.
[0037]
(2) In the above embodiment, the diagonal members 5, 5... Are continuously arranged in a zigzag shape. However, as shown in FIG. 8, as shown in FIG. The diagonal members 5 and 5 may be provided so as to form a triangle having an intersection.
[0038]
(3) In the above embodiment, the structure of the curtain wall wall surface CW supported by the support frame 4 is made of a panel made of glass or the like that is fitted and supported in a frame formed by the upright members 2. However, the structure of the curtain wall wall surface CW can be an arbitrary structure. For example, it is made of tempered glass without a curtain wall structure that is supported by a self-weight receiving member in which the glass weight is fixed in a vertical direction without having an eyelessness, and a frame frame that has a vertical and invisible shape. The present invention can also be applied to a curtain wall structure in which a panel is point-supported at a panel corner portion.
[0039]
【The invention's effect】
As described above in detail, according to the present invention, in the curtain wall structure in which the vertical is supported by the laterally arranged truss structural members, the appearance can be made clear by eliminating the main chord material, and the number of members The cost can be reduced by reducing the above. Moreover, an open impression is given to the glass surface by eliminating the tension material.
[Brief description of the drawings]
FIG. 1 is an external view of a curtain wall according to the present invention.
2 is a view taken along the line II-II in FIG.
FIG. 3 is a view taken along the line III-III in FIG. 1;
4 is an enlarged view of a main part of FIG. 3;
FIG. 5 is an enlarged view of a main part of FIG.
FIG. 6 is a longitudinal sectional view of a vertical support part.
FIG. 7 is an exploded perspective view of a vertical support part.
FIG. 8 is a cross-sectional view showing another arrangement example of the diagonal members 5, 5.
FIG. 9 is a longitudinal sectional view showing a vertical support structure using a conventional longitudinal truss frame.
FIG. 10 is a perspective view showing a vertical support structure using a conventional longitudinal truss frame and a lateral truss frame.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Curtain wall structure, 2 ... Standing member, 3 ... Seamless, 4 ... Support frame, 5 ... Diagonal material, 6 ... Intermediate coupling tool, 10 ... 1st adjustment tool, 10A ... Horizontal board part, 10B ... Vertical board 11, hollow screw member, 12 pinching plate, 16 second adjusting tool, 17 hanging cable or wire, CW curtain wall surface

Claims (4)

The floor frame or a laterally arranged structure is used as a support, and diagonal members are provided so that one end is connected to the support side and a triangle having an intersection on the outdoor side is formed. A vertical support structure for a curtain wall, characterized in that the vertical wall is supported at a portion. 2. The curtain wall vertical support structure according to claim 1, wherein a member length of the diagonal member is adjustable. An intermediate connector is interposed between the outdoor intersection of the diagonal member and the vertical, and the intermediate connector is suspended by a suspension line or a suspension rod arranged along the vertical direction. A vertical support structure for a curtain wall according to any one of 1 and 2. The construction method of the curtain wall vertical support structure according to any one of claims 1 to 3,
Prior to mounting, the diagonal member is connected in a hinge state in advance by a member connecting the diagonal members at the outdoor intersection and / or the indoor intersection, and fixed at a predetermined mounting position. How to construct a curtain wall vertical support structure.

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