JPH0592306U - Pca version fastener - Google Patents

Abstract

(57) [Abstract] [Purpose] The conventional one requires two fasteners for each out-of-plane load at each part, requires a lot of space in a plane, and has a pedestal for height adjustment. Therefore, there is a problem that the structure becomes complicated, a lot of work is required for factory production and on-site assembly, the construction period is lengthened, and the cost is increased. The present invention is intended to solve such a problem. [Structure] From a tip of a horizontal substrate 21 fixed on the girder steel frame 3, a lower half corresponds to an upper part of a lower Pca plate, and an upper half corresponds to a lower part of an upper Pca plate, and a required length is raised. The piece 22 is made upright to form an L-shaped vertical section, and the base plate 21
Through ribs 23 are provided at appropriate places on the upright pieces 22, a mounting through hole 24 is formed in the lower half of the upright pieces 22, and a mounting notch 25 is formed in the upper half of the upright pieces 22. Attached a cover 32 behind the lower half of the standing piece. It may be equipped with mounting pieces 36, 37.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a Pca plate fastener for joining a Pca plate (precast concrete plate) forming an outer wall of a building to a girder steel frame.

[0002]

[Prior Art]

 There are many types of fasteners of this type, and when classified from the functional aspect, they are roughly classified into those for receiving self-weight and those for receiving out-of-plane load. 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 fastener for receiving the self weight and two fasteners for out-of-plane are provided. Used for load bearing. That is, in FIGS. 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 frame that joins these Pca plates, and 4 is a lower plate. The self-weight receiving fasteners 5 planted in the upper part of the Pca plate on the first floor are one of the out-of-plane load receiving fasteners provided adjacent to one side of the self-weight receiving fastener on the upper part of the Pca plate on the lower floor. Ner, 6 is the other fastener for out-of-plane load receiving provided on the lower side of the upper Pca plate adjacent to the other side of its own weight receiving fastener, and 7 is an auxiliary plate joined to the girder steel frame. is there. The self-weight receiving fastener 4 has an adjusting bolt 8 threaded vertically through the projecting end projecting inward from the Pca plate 1 and mounted on an auxiliary plate 7 joined to the girder steel frame 3. .. Both of the fasteners 5 and 6 for receiving the out-of-plane load are L-shaped metal members, one fastener 5 is directly fixed on the girder steel frame 3 or the auxiliary plate 7, and the other fastener 6 is high. It is fixed on the girder steel frame 3 via the pedestal 9 for adjusting the height, and the bolt 10 that is planted on the upper part of the Pca plate 1 on the lower floor and the bolt 11 that is planted on the lower part of the Pca plate 2 on the upper floor are linked together. ing.

[0003]

As described above, the conventional device requires two fasteners for receiving the out-of-plane load in each part, and thus requires a large amount of space in a plan view. There is a problem in that the structure is complicated, such as requiring a pedestal for height adjustment, a lot of work is required for factory production and on-site assembly, the construction period is long, and the cost is high. The present invention is intended to solve such a problem.

[0004]

[Means for Solving the Problems]

 To achieve the above object, the invention of claim 1 is such that the lower half corresponds to the upper part of the lower Pca plate and the upper half corresponds to the upper Pca plate from the tip of the horizontal substrate 21 fixed on the girder steel frame 3. The standing piece 22 of a required length corresponding to the lower part of the plate is formed upright so as to have an L-shaped longitudinal section, and the base plate 21 to the standing piece 22 are provided with ribs 23 at appropriate positions, and the standing pieces are also formed. It is characterized in that a mounting through hole 24 is formed in the lower half portion of the piece 22 and a mounting notch 25 is formed in the upper half portion of the standing piece 22.

According to the second aspect of the invention, from the tip of the horizontal substrate 21 fixed on the girder steel frame 3, the lower half corresponds to the upper part of the lower Pca plate and the upper half corresponds to the lower part of the upper Pca plate. The standing piece 22 of a corresponding required length is made upright and is formed into an L-shape in longitudinal section, and ribs 23 are provided at appropriate places on the base plate 21 to the standing piece 22, and the lower half of the standing piece 22. The maximum required mounting through-hole 24 is formed in the upper part, and the maximum required mounting notch 25 is formed in the upper half of the upright piece 22, and the maximum required mounting through-hole 24 and the maximum required mounting notch are formed. 25 and 25 are equipped with mounting pieces 36 and 37, which have mounting holes 34 and 35 for mounting a required small form, respectively, in a removable manner.

Further, the invention of claim 3 is the same as the invention of claim 1 or claim 2, further comprising a cover 32 for detaching concrete which is detachably mounted behind the lower half of the standing piece 22. It will be done.

[0007]

[Action]

 The fastener for receiving an out-of-plane load according to claim 1 is fixed on the girder steel frame 3 with a substrate 21, and the mounting through hole 24 in the lower half portion of the standing piece 22 is made to correspond to this, and Pca of the lower floor is correspondingly provided. The bolt 10 planted in the upper part of the plate 1 is inserted, and the notch 25 for mounting in the upper half of the standing piece 22 is correspondingly fitted with the bolt 11 planted in the lower part of the Pca plate 2 on the upper floor. Insert the stainless steel piece, slide member 38 such as Teflon sheet, and washer 26 into these bolts, and screw the nut 27 into the former so that the former can move up and down, and the latter can move vertically and horizontally. Coordinate. As a result, they function together as a fastener for two conventional out-of-plane load receivers, making it possible to omit the conventional pedestal. As for the self-weight receiving fastener, a conventional one, for example, the self-weight receiving fastener 4 shown in FIGS. 12 to 14 may be used.

The fastener for receiving an out-of-plane load of claim 2 corresponds to the required maximum mounting through hole 24 and the required maximum mounting notch 25 in addition to the use as in the above-mentioned claim 1. Preliminarily, a plurality of types of mounting pieces having mounting holes 34, 35 of various shapes and sizes are prepared, and mounting pieces 36, 37 are prepared and planted on the upper part of the Pca plate 1 on the lower floor. Bolts 10 and bolts 11 planted in the lower part of the Pca plate 2 on the upper floor, select fitting pieces 36, 37 that match the diameters of the bolts, and select through holes 24 for mounting and notches 25 for mounting. Attach and use. This allows flexibility in form and size.

Further, the cover 32 for preventing concrete according to claim 3 is attached to the back of the lower half portion of the standing piece 22 to prevent the poured slab concrete 33 from flowing into the cover 32 of the attached lower floor. Secure a movable space for the bolt 10 on the upper part of the Pca plate 1 and the washers 26 and nuts 27 associated therewith. Since the floor level of the slab concrete 33 is generally located below the lower bolt 11 of the Pca plate 2 on the upper floor, a cover for the bolt 11 is unnecessary. However, if necessary, the upper end of the cover 32 may be extended upward.

[0010]

【Example】

 1 to 6 show an embodiment according to claim 1 and claim 3. The illustrated fastener for receiving an out-of-plane load is integrally cast from spheroidal graphite cast iron (ductile), and is fixed on the girder steel frame 3 or an auxiliary plate 7 attached thereto. From the tip, the lower half corresponds to the upper part of the lower Pca plate, and the upper half corresponds to the lower part of the upper Pca plate. Ribs 23 are formed on both side edges of the base plate 21 to the upright piece 22, and the lower half portion of the upright piece 22 is provided with an attachment through hole 24 that is a vertically elongated hole, and A large rectangular mounting notch 25 with an open upper end is formed in the upper half of the standing piece 22. Further, a cover 32 for preventing concrete is detachably installed behind the lower half of the standing piece 22, and the cover 32 is a portion corresponding to the lower half of the standing piece of the ribs 23 on both sides. In order to secure a movable space for the upper bolt 10 of the lower Pca plate 1 mounted on the lower half of the standing piece and the washer 26 and nut 27 related to this, it is formed in the required form (Fig. 6). In addition, a plurality of engaging protrusions 39 are arranged at appropriate positions on the side surfaces of the lower half of the rising piece of the ribs 23 on both sides, and correspondingly, at appropriate positions on the inner surfaces of both side walls of the cover 32. A plurality of engaging recesses 40 are arranged so that they are engaged with each other when the cover 32 is fitted. Thus, the board 21 is provided with four elongated holes 28 in the front, rear, left, and right, and corresponding to these elongated holes, an appropriate number of through holes 41 are formed in appropriate places on the upper flange of the girder steel frame 3 made of H-shaped steel. Holes, and insert high-strength bolts and bolts 29 from below into these through-holes to stand up, loosely fit these long-holes 28 into these high-strength bolts, fit washers 30 and nuts 31. After screwing in, adjust the position and tighten it sufficiently to fix. A stud bolt may be used instead of the high-strength bolt 29 and the through hole 41. The conditions of use and the like are as described in the section “Operation”.

7 to 9 show an embodiment according to claim 2. In this case, in the case of the previous example, the required maximum mounting through hole 24 is formed in the lower half part of the standing piece 22, and the required maximum mounting notch 25 is formed in the upper half part of the standing piece 22. The largest mounting holes 24 and the required maximum mounting notches 25 are equipped with mounting pieces 36, 37 that have the required small-sized mounting holes 34, 35, respectively, in a removable manner. The inner surfaces of the required maximum mounting through hole 24 and the required maximum mounting notch 25 are formed to be slightly tapered, and the mounting through hole 24 and the mounting notch 25 are formed in each of the mounting pieces 36 and 37. Provided with rings 42 and 43 that come into contact with the edges of the fittings, and projecting fitting portions 44 and 45 that fit into the mounting through holes 24 and the mounting notches 25 from these rings, respectively. Through holes 34 and 35 for attachment of a required small form are bored on the respective sides. In addition, it is advisable to previously attach a sliding member such as a stainless steel piece or a Teflon sheet to the surfaces of the rings 42 and 43. The mounting through-hole 34 formed in the mounting piece 36 that fits into the mounting through-hole 24 in the lower half of the standing piece is formed as a vertically elongated hole similar to the original mounting through-hole 24 (see FIG. 9), the attachment hole 35 formed in the attachment piece 37 fitted in the attachment notch 25 in the upper half of the standing piece is formed in a rectangular shape similar to the original attachment notch 25 according to the purpose of use ( (FIG. 10) or it is formed in a vertically elongated hole (FIG. 11). The conditions of use and the like are as described in the section “Operation”.

[0012]

[Effect of the device]

 According to the invention of claim 1, the lower half and the upper half of the standing piece 22 are made to correspond to the upper part of the Pca plate on the lower floor and the lower part of the Pca plate on the upper floor, and the lower half of the rising piece 22. The bolt 10 that is planted on the upper part of the Pca plate 1 on the lower floor in the mounting through hole 24 of the upper part, and the bolt 10 that is planted on the upper part of the Pca plate 2 on the upper floor in the mounting notch 25 in the upper half part. Since the former and the latter can be linked in a vertically movable relationship and the latter in a vertically movable relationship by inserting the washer 26 and the nut 27 into each other by inserting the washers 26, respectively, the two conventional models have been used. It is possible to use only one fastener for receiving the out-of-plane load, and the conventional pedestal can be omitted. Therefore, the space for the plane can be reduced, the structure can be simplified, and the number of steps for factory production and field assembly can be reduced. It can be reduced, the construction period can be shortened, and the cost can be reduced. Of course, since the rib 23 is provided, there is no problem in strength even if the upright piece 22 becomes taller, which is practically useful.

According to the second aspect of the present invention, the required maximum attachment through hole 24 is formed in the lower half of the upright piece 22, and the required maximum attachment notch 25 is formed in the upper half of the upright piece 22. However, mounting pieces 36, 37 having mounting holes 34, 35 of a required small size are detachably attached to the required mounting hole 24 and the required mounting notch 25, respectively. Therefore, by preparing in advance a plurality of types of mounting pieces 36, 37 having mounting through holes 34, 35 of various shapes and sizes, it is possible to plant them on the upper part of the Pca plate 1 on the lower floor. Even if the diameters of the bolt 10 and the bolt 11 planted in the lower part of the upper Pca plate 2 change, the mounting pieces 36 and 37 suitable for these can be selected and used. Therefore, the shape and size can be given flexibility, and the range of use can be greatly expanded. However, the size can be optimized and the construction accuracy can be significantly improved. Further, the mounting pieces 36, 37 can be preliminarily provided with a sliding member such as a stainless steel piece or a Teflon sheet on the surface thereof, so that the construction can be simplified.

Further, according to the invention of claim 3, since the cover 32 for preventing concrete is provided behind the lower half portion of the standing piece 22, the inflow of the placed slab concrete 33 is prevented after the mounting. Thus, it is possible to easily secure a movable space for the upper bolt 10 of the Pca plate 1 on the lower floor and the sliding member 38, the washer 26, and the nut 27 related thereto, and a formwork for securing the movable space is provided. It can be simplified and the workability of slab concrete pouring work can be improved.

[Brief description of 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 invention of claims 1 and 3 in a used state.

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

FIG. 3 is a cutaway 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 cutaway side view of a fastener for receiving an out-of-plane load according to an embodiment of the invention of claim 2;

FIG. 8 is a rear view of the same.

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

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

FIG. 11 is a front view of a modified example of the main part member.

FIG. 12 is a cutaway plan view of a conventional state of use.

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

FIG. 14 is a cutaway side view of the other main part.

[Explanation of symbols]

 1 Lower floor Pca version 2 Upper floor Pca version 3 Large beam steel frame 4 Self-weight receiving fastener 5 One fastener for out-of-plane load receiving 6 The other fastener for out-of-plane load receiving 7 Auxiliary plate 8 Adjustment bolt 9 Pedestal 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 hole 35 Mounting 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

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Sato Inventor Hidenori Sato 2-5-14 Minamisuna, Koto-ku, Tokyo Inside the Takenaka Corporation Technical Research Institute

Claims (3)

[Scope of utility model registration request] 1. A required length from the tip of a horizontal substrate 21 fixed onto the girder steel frame 3 so that the lower half corresponds to the upper part of the lower Pca plate and the upper half corresponds to the lower part of the upper Pca plate. Standing piece 22
And the ribs 23 are formed at appropriate positions on the base plate 21 to the upright pieces 22, and mounting through holes 24 are provided in the lower half of the upright pieces 22. And the standing piece
A Pca plate fastener characterized in that a notch 25 for mounting is formed in the upper half portion of 22. 2. A required length from the tip of a horizontal substrate 21 fixed on the girder steel frame 3 to the lower half corresponding to the upper part of the lower Pca plate and the upper half corresponding to the lower part of the upper Pca plate. Standing piece 22
And the rib 23 is formed in an appropriate position on the base plate 21 to the upright piece 22 and the lower half portion of the upright piece 22 has a required maximum mounting through hole. 24, and the required maximum mounting notch 25 is formed in the upper half of the upright piece 22, and the required maximum mounting through-hole 24 and the required maximum mounting notch 25 are respectively used for small-sized mounting. Through hole 34,
Pca version fastener characterized in that mounting pieces 36 and 37 having 35 are detachably mounted. 3. The Pca plate fastener according to claim 1, wherein a cover 32 for preventing concrete is detachably mounted behind the lower half of the upright piece 22.