JP2588143Y2 - Pca version fastener - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Pca plate fastener for joining a Pca plate (precast concrete plate) constituting an outer wall of a building to a steel girder.

[0002]

2. Description of the Related Art There are many types of fasteners of this type, and when categorized in terms of function, they are roughly classified into those for receiving their own weight and those for receiving out-of-plane loads. These fasteners are used in an appropriate combination. For example, as shown in FIGS. 12 to 14, at the corner of the Pca plate or in the vicinity thereof, one for own weight receiving and two out-of-plane load receiving are respectively provided. Is used. 12 to 14, 1 is a Pca plate on the lower floor, 2 is a Pca plate on the upper floor immediately above the Pca plate, 3 is a girder steel beam connecting these Pca plates, and 4 is a lower beam. A self-weight receiving fastener planted above the Pca version of the floor is one of the out-of-plane load receiving fasteners provided adjacent to one side of the self-weight receiving fastener above the lower Pca version. , 6 is the other fastener for receiving an out-of-plane load provided adjacent to the other side of the fastener for receiving its own weight at the lower part of the Pca plate on the upper floor, and 7 is an auxiliary plate joined to the girder steel frame. The self-weight receiving fastener 4 has an adjusting bolt 8 vertically threaded at a protruding end projecting inward from the Pca plate 1, and is mounted on an auxiliary plate 7 joined to the girder steel frame 3. .
The two fasteners 5 and 6 for receiving the out-of-plane load are L-shaped hardware, and one fastener 5 is directly fixed on the girders 3 to the auxiliary plate 7 and the other fastener 6 is used.
A bolt 10 fixed on the girder steel frame 3 via a pedestal 9 for height adjustment and planted above the Pca plate 1 on the lower floor and a bolt 11 planted below the Pca plate 2 on the upper floor. Is linked.

[0003]

As described above, in the prior art, each part requires two fasteners for receiving the out-of-plane load, so that a large amount of space is required in a plane, and the height is high. There is a problem that the structure becomes complicated, such as the need for a pedestal for adjustment, and that many steps are required for both factory production and on-site assembling, that the construction period is lengthened and the cost is increased. The present invention seeks to solve such a problem.

[0004]

In order to achieve the above object, the invention of claim 1 is directed to a horizontal substrate 2 fixed on a girder steel frame 3.
From the top of 1, the lower half corresponds to the upper Pca version on the lower floor,
An upright piece 22 of a required length corresponding to the lower part of the Pca plate on the upper floor is made upright to form an L-shaped vertical section, and a rib 23 is provided on the substrate 21 to the upright piece 22 at an appropriate position. The mounting hole 2 is formed in the lower half of the standing piece 22.
4 and a mounting notch 25 is formed in the upper half of the standing piece 22, and a concrete blocking cover 32 is detachably provided behind the lower half of the rising piece 22. And

According to the invention of claim 2, the lower half corresponds to the upper part of the Pca plate on the lower floor, and the upper half corresponds to the lower part of the Pca plate on the upper floor from the tip of the horizontal substrate 21 fixed on the steel girder 3. The corresponding required length of the upright piece 22 is erected to form an L-shaped vertical section, and the base plate 21 to the upright piece 22 are provided with ribs 23 in place.
In addition, a required maximum mounting through-hole 24 is formed in the lower half of the upright piece 22, and a required maximum mounting notch 25 is formed in the upper half of the upright piece 22. Through hole 24
The mounting pieces 36 and 37 having mounting holes 34 and 35 of a required small form are detachably provided in the mounting notch 25 and the required maximum mounting notch 25, respectively.

Further, the invention of claim 3 is based on Pc of claim 2.
In the a-type fastener, a cover 32 for preventing concrete is detachably provided behind the lower half of the upright piece 22.

[0007]

The Pca plate fastener according to the first aspect is fixed on the girder steel frame 3 by the base plate 21, and the lower through-hole mounting hole 24 in the lower half of the standing piece 22 is adapted to correspond to this. The bolt 10 implanted in the upper part of the
The bolts 11 planted in the lower part of the Pca plate 2 on the upper floor are inserted into the mounting notches 25 in the upper half of the sliding member 38 such as stainless steel pieces and Teflon sheets. Then, the washer 26 is fitted and the nut 27 is screwed and tightened, so that the former is linked to the up and down movable relationship, and the latter is linked to the up and down and left and right movable relationship. Thereby, the function as a fastener for receiving two conventional out-of-plane loads is exerted as a unit, and the conventional pedestal can be omitted. The fastener for receiving its own weight is a conventional fastener, for example, as shown in FIG.
It is sufficient to use the fastener 4 for receiving its own weight shown in FIG. The cover 32 for blocking concrete is mounted behind the lower half of the upright piece 22 to prevent the poured slab concrete 33 from flowing in and the bolts on the upper part of the Pca slab 1 on the lower floor are mounted. 10 and the movable space for the washer 26 and the nut 27 related thereto are secured. In addition,
The bolt 11 at the lower part of the upper floor Pca plate 2 does not need a cover because the floor level of the slab concrete 33 is generally located below. However, if necessary, the upper end of the cover 32 may be extended upward.

The fastener for receiving an out-of-plane load according to claim 2 is used in accordance with the above-mentioned claim 1, and in addition to the required maximum mounting through-hole 24 and the required maximum mounting notch 25, Mounting holes 34 of various shapes and sizes
Multiple types of mounting pieces with 35 Mounting pieces 3
6 and 37 are prepared, and a mounting piece suitable for each diameter of the bolt 10 planted on the upper part of the Pca plate 1 on the lower floor and the bolt 11 planted on the lower part of the Pca plate 2 on the upper floor. 36 and 37 are selected and used by attaching them to the mounting through holes 24 and the mounting notches 25. Thereby, flexibility in form and dimensions is maintained.

Further, in the same manner as in the case of the first aspect, the concrete blocking cover 32 of the third aspect is provided with the bolt 10 on the upper part of the Pca plate 1 on the lower floor and the washer 26 and the nut 27 related thereto. Secure the movable space of. In this case, the cover 11 is not generally required for the bolt 11 at the lower part of the upper floor Pca plate 2, as in the case of claim 1. If necessary, the upper end of the cover 32 is extended upward. Just do it.

[0010]

1 to 6 show an embodiment according to the first and third aspects of the present invention. The illustrated fastener for receiving an out-of-plane load is integrally cast from spheroidal graphite cast iron (ductile), and has the tip of a flat rectangular horizontal substrate 21 fixed on the girders 3 to the auxiliary plate 7 attached thereto. The upper half corresponds to the upper part of the Pca version on the lower floor, and the upper half corresponds to the lower part of the Pca version on the upper floor. And ribs 23 are provided on both side edges of the base plate 21 to the upright piece 22, and a mounting through hole 24, which is an elongated hole in the vertical direction, is provided in the lower half of the upright piece 22. A large rectangular mounting notch 25 with an open upper end is formed in the upper half of the piece 22. Further, a cover 32 for preventing concrete is detachably provided behind the lower half of the upright piece 22. The cover 32 is adapted to a portion corresponding to the lower half of the upright piece of the ribs 23 on both sides. Then, Pca on the lower floor attached to the lower half of the standing piece
Bolt 10 at the top of plate 1 and its associated washer 26 and nut
27 are formed in a required form (FIG. 6) so as to secure the movable space, and a plurality of engaging projections 39 are arranged at appropriate positions on the side surfaces of the ribs 23 on both sides corresponding to the lower half of the standing piece. In response to this, a plurality of engaging recesses 40 are arranged at appropriate positions on the inner surfaces of both side walls of the cover 32 so that they are engaged with each other as the cover 32 is fitted. Thus, the substrate 21 is provided with four long holes 28 in the front, rear, left and right directions, and in accordance with these long holes, an appropriate number of through-holes 41 are provided at appropriate places on the upper flange of the steel beam 3 made of H-section steel. The high-strength bolts 29 are inserted into the through holes from below, and the bolts 29 are raised.Then, the long holes 28 are loosely fitted to these high-strength bolts, the washers 30 are fitted, and the nuts 31 are screwed. After adjusting the position, tighten and fix it sufficiently. In addition,
A stud bolt may be used instead of the high-strength bolt 29 and the through hole 41. The usage state and the like are as described in the section of “action”.

FIGS. 7 to 9 show an embodiment according to the second aspect. In this case, in the previous example, the required maximum mounting through hole 24 in the lower half of the upright piece 22, and the required maximum mounting notch 25 in the upper half of the upright piece 22,
Mounting pieces 36 and 37 having mounting holes 34 and 35 of a required small form are detachably provided in the required maximum mounting through hole 24 and the required maximum mounting notch 25, respectively. The inner surface of the required maximum mounting through hole 24 and the required maximum mounting notch 25 is formed to be slightly tapered, and each mounting piece 36, 37 has its mounting through hole 24 and mounting notch
Rings 42 and 43 are provided to be in contact with the edges of the fitting 25, and fitting portions 44 and 45 are fitted from these rings to fit inside the mounting through-holes 24 and the mounting cutouts 25. The mounting holes 34 and 35 of a required small form are formed in the inside of each. In addition, a stainless steel piece,
It is preferable to provide a sliding member such as a Teflon sheet. Mounting piece 36 that fits into mounting hole 24 in the lower half of the standing piece
The mounting through hole 34 is formed in a vertically elongated hole similar to the original mounting through hole 24 (FIG. 9), and is fitted into the mounting notch 25 in the upper half of the standing piece. The mounting through-hole 35 formed in the 37 is formed in a rectangular shape similar to the original mounting notch 25 (FIG. 10) or an elongated hole in the vertical direction (FIG. 11), depending on the purpose of use. . The usage state and the like are as described in the section of “action”.

[0012]

According to the first aspect of the present invention, the lower half and the upper half of the upright piece 22 have the upper part of the lower Pca plate and the upper part Pc.
The bolt 10 planted on the upper part of the Pca plate 1 on the lower floor is inserted into the mounting hole 24 in the lower half of the standing piece 22 and the notch 25 for mounting on the upper half. The bolts 11 planted on the upper part of the Pca plate 2 on the upper floor are respectively inserted through them, the washers 26 are fitted, and the nuts 27 are screwed together. The former has a vertically movable relationship, and the latter has a vertically movable relationship. Since it can be linked, it is possible to use only one fastener for receiving an out-of-plane load, which was conventionally used for two, and to omit the conventional pedestal, so that the planar space can be reduced and the structure can be reduced. Can be simplified, the number of steps in factory production and on-site assembly can be reduced, the construction period can be shortened, and the cost can be reduced. Of course, since the ribs 23 are provided, there is no problem in strength even when the standing pieces 22 are tall. Further, since the concrete blocking cover 32 is provided behind the lower half of the standing piece 22, the slab concrete 33 which has been poured in after mounting is prevented from flowing, and the bolts on the upper part of the Pca slab 1 on the lower floor are installed. It is possible to easily secure the movable space of the sliding member 38, the washer 26, and the nut 27 relating to the nut 10 and the sliding member 38,
The formwork for securing the movable space can be simplified, and the workability of slab concrete placing work can be improved.

According to the invention of claim 2, the maximum required mounting through hole 24 is provided in the lower half of the upright piece 22 and the upright piece 22 is provided.
In the upper half part, the required maximum mounting notch 25 is formed, and the required maximum mounting through hole 24 and the required maximum mounting notch 25 are provided with the required small-sized mounting through holes 34 and 35, respectively. Since the pieces 36 and 37 are detachably equipped,
By preparing a plurality of types of mounting pieces 36 and 37 having mounting through holes 34 and 35 of various shapes and sizes in advance, the bolts planted on the upper part of the Pca plate 1 on the lower floor
Even if the diameters and the like of the bolts 11 implanted at the lower part of the Pca plate 2 on the upper floor fluctuate, it is possible to select and use the mounting pieces 36 and 37 suitable for them.
The form and the dimensions can be given flexibility, the range of use can be greatly expanded, and the dimensions can be optimized, and the construction accuracy can be remarkably improved.
Further, a sliding member such as a stainless steel piece, a Teflon sheet or the like can be attached to the surfaces of the mounting pieces 36 and 37 in advance, so that the construction can be simplified.

Further, according to the invention of claim 3, according to claim 2,
In the Pca version fastener, the concrete blocking cover 32 is provided behind the lower half of the upright piece 22. Therefore, the slab that has been cast after mounting is installed as in the case of the Pca version fastener according to claim 1. By preventing the inflow of the concrete 33, the movable space of the bolt 10 and the sliding member 38, the washer 26, and the nut 27 related to the upper portion of the Pca plate 1 on the lower floor can be easily secured, and the movable space can be secured. Can be simplified, and the workability of slab concrete placing work can be improved.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of a fastener and a cover for receiving an out-of-plane load according to an embodiment of the present invention.

FIG. 2 is a side view of the fastener for receiving an out-of-plane load of the same example.

FIG. 3 is a sectional side view of the same.

FIG. 4 is a rear view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a perspective view of a cover of the same example.

FIG. 7 is a cut-away side view of an out-of-plane load receiving fastener according to an embodiment of the present invention.

FIG. 8 is a rear view of the same.

FIG. 9 is a front view of a main part of the example.

FIG. 10 is a front view of another main member of the example.

FIG. 11 is a front view of a modification of the essential part member.

FIG. 12 is a cut-away plan view showing a conventional example in use.

FIG. 13 is a cutaway side view of the main part.

FIG. 14 is a cutaway side view of another essential part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pca version of lower floor 2 Pca version of upper floor 3 Steel beam of main beam 4 Fastener for receiving own weight 5 One fastener for receiving out-of-plane load 6 The other fastener for receiving out-of-plane load 7 Auxiliary plate 8 Adjustment bolt 9 Base 10 Bolt 11 Bolt 21 Board 22 Standing piece 23 Rib 24 Mounting hole 25 Mounting notch 26 Washer 27 Nut 28 Long hole 29 High strength bolt 30 Washer 31 Nut 32 Cover 33 Slab concrete 34 Mounting through hole 35 Mounting through hole 36 Mounting piece 37 Mounting piece 38 Sliding member 39 Engagement protrusion 40 Engagement recess 41 Through hole 42 Ring 43 Ring 44 Fitting part 45 Fitting part

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideo Sato 2-5-1-14 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (56) References Hikaru 3-115709 (JP, U) 55-37960 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) E04B 2/94

Claims (3)

(57) [Scope of request for utility model registration] 1. A horizontal substrate 21 fixed on a girder steel frame 3.
From the top end, the lower half corresponds to the upper part of the Pca plate on the lower floor, and the upper half stands upright with the required length corresponding to the lower part of the Pca plate on the upper floor. Along with
A rib 23 is provided at an appropriate position on the substrate 21 to the upright piece 22, and a mounting through hole 24 is provided in a lower half portion of the upright piece 22.
And a notch 25 for attachment is formed in the upper half of the upright piece 22, and a concrete blocking cover 32 is detachably provided behind the lower half of the upright piece 22. Pca version fastener. 2. A required length corresponding to an upper part of a lower-level Pca plate, and a lower half corresponding to a lower part of an upper-level Pca plate, from the tip of the horizontal substrate 21 fixed on the girder steel frame 3. Standing piece 22
To form an L-shaped vertical cross section, a rib 23 is provided at an appropriate position on the base plate 21 to the upright piece 22, and a required maximum mounting through hole is provided in the lower half of the upright piece 22. 24, and the required maximum mounting notch 25 is formed in the upper half of the standing piece 22, and the required maximum mounting through hole 24 and the required maximum mounting notch 25 are used for mounting the required small form, respectively. Through hole 34,
A Pca version fastener characterized in that mounting pieces 36 and 37 having 35 are detachably mounted. 3. The Pca plate fastener according to claim 2, wherein a cover 32 for preventing concrete is detachably provided behind the lower half of the upright piece 22.