JPH0717847U - Concrete joint water stop plate - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a concrete splice water stop board in which the cross-sectional shape of the waterproof material does not change or move during concrete pouring to construct the underground floor. [Structure] A composite material in which the water stop plate 1 is made of a metal material or a plastic resin material as a core material and coated with a resin material such as butyl rubber, or
A single material such as a plastic resin material or a metal material is formed into an inverted T-shaped cross section, and at the concrete joint J of the outer peripheral wall 2 and the underground beam 3, the upper portion 1v of the water stop plate 1 is attached by the upper exclusive clip 7. The wall reinforcement 2a is fixed to the transverse reinforcement 2b, and the bottom 1w thereof is fixed to the beam reinforcement 3a by the lower dedicated clip 8 to prevent deformation and movement during concrete placement, and to simplify assembly and installation on site. Improve efficiency.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water blocking member used in a concrete jointing portion that joints a skeleton at each stage when constructing a basement floor.

[0002]

[Problems to be solved by conventional techniques and devices]

 When constructing a concrete skeleton on the basement floor, it is technically difficult to place concrete all over the skeleton at a time. Be sure to provide a concrete joint J at the upper and lower parts of each skeleton at each stage. However, water leak accidents often occur at the joint J (see Fig. 9). In the figure, 2 is an outer peripheral wall, 3 is an underground beam, and 4 is a pressure board. Currently, in order to prevent such accidents, the use of waterproofing materials is described in design documents. There are various types of commercially available waterproof materials, and they are used in the right places (see Fig. 10). In the figure, 1f is a flat water blocking material, and 1g is a rod water blocking material. Furthermore, despite the fact that special admixtures have been added to concrete and efforts have been made to protect buildings from water leaks, water leaks are occurring frequently. Of course, there are problems with the concrete pouring method, but it cannot be said that there is no room for improvement in the waterproofing material itself. In particular, the plate-shaped ones are easily deformed when pouring concrete, and it is difficult to maintain the original shape. Also, the seal-shaped ones are surely contacted with water and self-expanded to complete volume. It remains doubtful whether the water-stopping effect can be maintained.

[0003]

[Means for Solving the Problems]

 The present invention is intended to solve the above problems, and it is a composite material in which a soft resin material such as butyl rubber is coated with a metal material or a plastic resin material as a core material, or a single material such as a plastic resin material or a metal material. The material is formed into an inverted T-shaped cross section with high cross-sectional rigidity, and the top and bottom of the inverted T-shaped cross section are fixed to the reinforcing bars near the joint, preventing deformation and movement during concrete pouring. However, it is intended to provide a new concrete joint water stop plate that simplifies assembly and installation on site and improves work efficiency. That is, the present invention is a water stop plate used for fixing a concrete splicing part to a reinforcing bar in the vicinity of the splicing part, which has an inverted T-shaped cross section and is made of a metal material or a plug. A concrete joint waterstop board, which is made of a composite material in which a core material of a plastic resin material is coated with a resin such as butyl rubber. Further, instead of the composite material, a concrete joint water stop plate made of a single material such as a plastic resin material or a metal material may be used. Further, in the present invention, an H-shaped joiner is used to connect the water blocking plates to each other, and the cut corners are formed at right angles by partial cutting at the entrance corner and the exit corner. It is also preferable to fix the upper and bottom parts of the bar to the reinforcing bars with special clip parts to simplify the assembly and mounting and to prevent deformation and movement.

[0004]

[Action]

 An example of mounting the concrete joint water stop plate of the present invention at the concrete joint portion will be described with reference to the drawings. In the connecting portion between the underground beam 3 and the outer peripheral wall 2 in FIG. 1, the upper part 1v of the water blocking plate 1 having an inverted T-shaped cross section is laid across the wall reinforcements 2a on both sides of the outer peripheral wall 2. The clip 2 is fixed to the streak 2b by the upper exclusive clip 7, and the bottom 1w is fixed to the beam streak 3a of the underground girder 3 provided horizontally by the lower exclusive clip 8, and the concrete is placed so as not to move and deform. . In the joint between the pressure board 4 and the underground beam 3 in FIG. 2, the upper part 1v of the water blocking plate 1 having an inverted T-shaped cross section is laid between the beam reinforcements 3a on both sides of the underground beam 3. It is fixed to the hanging bar 3b by the upper exclusive clip 7, and its bottom 1w is fixed to the pressure plate bar 4a laterally provided on the pressure plate 4 by the lower exclusive clip 8 and the concrete is placed so as not to move and deform. . In the concrete skeleton in which the column 5 and the outer peripheral wall 2 of FIG. 3 are joined together, the top 1v and bottom 1w of the water blocking plate 1 having an inverted T-shaped cross section placed on the concrete joint J are connected to the column 5 by the column 5 and the outer wall 2. By the way, it is fixed to the horizontally and vertically installed column bars 5a by a special clip (not shown), and at the outer peripheral wall 2, a cross bar (not shown) installed between the wall bars 2a on both sides. Fix it to the concrete and place concrete without moving or deforming it.

[0005]

【Example】

 An embodiment of the concrete joint water stop plate of the present invention will be described with reference to the drawings. Fig. 4 is a cross-sectional view of the composite material type (4-1) and single material type (4-2) waterstop plates, Fig. 5 is a perspective view of the joints of the waterstop plates, and Fig. 6 is a structural diagram of the H-type joiner. FIG. 7 is an explanatory view of a right-angled installation in the inside corner, and FIG. 8 is an explanatory view of mounting and fixing the upper exclusive clip (8-1) and the lower exclusive clip (8-2). In the figure, 1 is a water stop plate, 1a is a composite material type water stop plate, 1b is a single material type water stop plate, 6 is an H type joiner, 7 is an upper exclusive clip, 8 is a lower exclusive clip, and J is a joint. Part and S are reinforcing bars. The concrete joint water stop plate 1 (Fig. 4) of the present invention is a long and straight water stop plate having a stable inverted T-shaped cross-section, and a butyl rubber material with a metal material or a plastic resin material as the core material 1c. There are a composite material type 1a (4-1) formed of a composite material having a coating material 1d and a single material type 1b (4-2) formed of a single material of a plastic resin material. Although the water stop plate 1 of the present invention has an inverted T-shaped cross section and a large adhesion area with concrete, as shown in the figure, the single material type water stop plate 1b has a concrete close contact with both ends of the upper part 1v and the bottom part 1w. By forming the concave-convex groove 1e for water, the water-stop performance can be further improved.

When the concrete joint J is long, the water blocking plates 1 and 1 are inserted and joined using the H-shaped joiner 6 (FIG. 5). The H-shaped joiner 6 (Fig. 6) is formed into an inverted T-shaped hollow frame shape in accordance with the cross-sectional shape of the water blocking plate 1 so that the water blocking plate 1 can be inserted and attached, and a partition plate is formed in the center of the H type joiner H. It is installed inside the mold so that the water stop plate 1 can be correctly inserted from both sides. Further, when the concrete joint J is a right angle at the corner of the concrete frame, as shown in FIG. 7, the long water stop plate 1 is machined at the right angle position to form a right-angled triangular partial cut 9 on the inner side 1 m, Cut the outer side 1n into two parts. Next, the two halves of the inner side 1m are joined together to form a right angle. At that time, the square plate material 10 is attached to the notch created between the outer sides 1n, and the stop plate 1 bent at a right angle is easily formed. To form. Further, in the projecting corner part, if the inner side 1m and the outer side 1n of the above-mentioned entering corner part are reversed, the stop plate 1 bent at a right angle can be easily formed in the same manner. To fix the water stop plate 1 to the reinforcing bar S near the splice portion J, an upper exclusive clip 7 and a lower exclusive clip 8 are used as shown in FIG. The upper clip 7 is formed by bending a spring steel plate into an inverted U shape with a width adapted to the upper portion 1v of the water blocking plate 1, and further, the both lower ends thereof are bent at right angles so as to face inward and grasped. The claws 7a, 7a are formed. On the other hand, on both side plates 7b, 7b, long grooves 7c, 7c having a width adapted to the outer diameter of the reinforcing bar S are cut out and formed, and the clip 7 is suspended on the reinforcing bar S and the gripping claws are formed. The water stop plate 1 is gripped by projecting the springs 7a, 7a into the recessed grooves 7d, 7d formed on both sides of the upper portion 1v of the water stop plate 1 by its spring force. At that time, the upper part 1v of the water stop plate 1 is formed so as to contact the reinforcing bar S, and the water stop plate 1 is stably fixed. The lower clip 8 is formed by bending a spring steel plate into a U-shape with a width adapted to the bottom portion 1w of the water blocking plate 1. Further, both upper ends of the lower clip 8 are bent into a dogleg shape facing inward and gripped. The parts 8a, 8a are formed. On the other hand, on both side plates 8b, 8b, long grooves 8c, 8c having a width adapted to the outer diameter of the reinforcing bar S are cut out, and the reinforcing bar S is sandwiched between the long grooves 8c, 8c. The both ends of the bottom portion 1w of the water blocking plate 1 placed on S are gripped by the gripping portions 8a, 8a, and the water blocking plate 1 is stabilized and fixed.

As described above, the concrete joint water stop plate 1 can be joined together by using the H-shaped joiner 6, and the water stop plate bent at a right angle at the entrance corner and the exit corner. 1 can be easily formed. Further, the reinforcing bar S is stably fixed by using the upper exclusive clip 7 and the lower exclusive clip 8, and the connection between the underground beam 3 and the outer peripheral wall 2 in FIG. As in the mounting example of the joint part, the joint between the pressure plate 4 and the underground beam 3 in FIG. 2 and the joint between the pillar 5 and the outer peripheral wall 2 in FIG. 3, move to the reinforcing bar S near the concrete joint J. And, it can be mounted and fixed so as not to be deformed.

[0008]

[Effect of device]

 Since the concrete splice water stop plate of the present invention exhibits the following various effects, it is effectively used to prevent water leakage from the spliced part, especially when constructing a concrete skeleton on the lower floor. (1) Assembling and assembling on-site is simplified and stabilized, so it can be easily installed at an accurate position and has high workability. (2) Since the water stop plate of the present invention is T-shaped, it has a wide adhesive area with concrete and is in perfect contact with concrete, and high water stop performance is obtained. (3) It is easy and stable to join the members at the entry and exit corners, including the straight section, and it is possible to perform water-stopping treatment without water leakage. (4) A T-shaped member with a stable cross-sectional shape and high strength does not deform even when concrete is poured, and highly reliable waterproof performance is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an assembling portion of an underground beam and an outer peripheral wall.

FIG. 2 is a sectional view of an assembling portion of a pressure board and an underground beam.

FIG. 3 is a transverse cross-sectional view of an assembly portion of a column and an outer peripheral wall.

FIG. 4 is a sectional view of a water stop plate, 4-1 is a composite material type, 4
-2 is a single material type.

FIG. 5 is a perspective view of a joint portion of the water blocking plate.

FIG. 6 is a structural diagram of an H-type joiner.

FIG. 7 is an explanatory diagram of a right-angled shape provided at an inside corner portion.

FIG. 8 is an explanatory view of attachment and fixation of a clip (8-1) for exclusive use of an entrance portion and a clip (8-2) for exclusive use of a lower portion.

[Explanation of symbols]

1 water stop plate 1a composite type water stop plate 1b single type water stop plate 1e uneven groove 1v upper part 1w bottom part 2 outer peripheral wall 2a wall reinforcement 3 underground beam 3a beam reinforcement 4 pressure plate 4a pressure plate reinforcement 5 column 5a column reinforcement 6 H-type joiner 7 Upper clip 7a Grip claw 7c Long groove 8 Lower clip 8a Grip J Concrete joint S S Rebar

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[Procedure amendment]

[Submission date] March 4, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a sectional view of an assembling portion of an underground beam and an outer peripheral wall.

FIG. 2 is a sectional view of an assembling portion of a pressure board and an underground beam.

FIG. 3 is a transverse cross-sectional view of an assembly portion of a column and an outer peripheral wall.

FIG. 4 is a cross-sectional view of a water blocking plate, 4-1 is a composite material type, 4
-2 is a single material type.

FIG. 5 is a perspective view of a joint portion of the water blocking plate.

FIG. 6 is a structural diagram of an H-type joiner.

FIG. 7 is an explanatory diagram of a right-angled shape provided at an inside corner portion.

FIG. 8 is an explanatory view of attachment and fixation of the insert-only clip (8-1) and the lower-only clip (8-2).

FIG. 9 is a sectional view of an essential part of a conventional basement concrete structure.

FIG. 10 is a cross-sectional view of a splice part, in which 10-1 is a plate-shaped waterproof material, 1
Reference numeral 0-2 is a rod-shaped waterproof material.

[Explanation of symbols] 1 water stop plate 1a composite type water stop plate 1b single type water stop plate 1e uneven groove 1v upper part 1w bottom part 2 outer peripheral wall 2a wall bar 3 underground beam 3a beam bar 4 pressure plate 4a pressure plate bar 5 Column 5a Column reinforcement 6 H-type joiner 7 Upper part clip 7a Grip claw 7c Long groove 8 Lower part clip 8a Grip part J Concrete joint part S Rebar

Claims (3)

[Scope of utility model registration request] 1. A water stop plate, which is used by fixing to a reinforcing bar near the joint when the concrete joint is placed,
A concrete joint water stop board having a reverse T-shaped cross section and made of a composite material in which a core material of a metal material or a plastic resin material is coated with a resin such as butyl rubber. 2. A water stop plate, which is used by fixing to a reinforcing bar near the joint when placing the concrete joint,
A concrete joint water stop plate having an inverted T-shaped cross section and made of a single material such as a plastic resin material or a metal material. 3. An H-joiner is used to join the water blocking plates to each other, and are joined to each other at a right angle with a partial cut at an entering corner and an exiting corner to form an upper portion of an inverted T-shaped cross section. The concrete joint water stop plate according to claim 1 or 2, wherein the bottom part and the bottom part are fixed to the reinforcing bar with a dedicated clip part and assembled and attached.