JPH0581349U - Water stop connection device for concrete structures - Google Patents

Abstract

(57) [Abstract] [Purpose] To reliably prevent water leakage from the waterproof joints of concrete structures by simple means. [Structure] A waterproof strip 2 extending in the longitudinal direction of the belt-shaped support member at the widthwise intermediate portion of the back surface of the metal belt-shaped support member 1.
The concave surface 5 provided at the end of each concrete structure 4 which is to be connected to the water stop by forming the support member 3 with the water stop projection.
, The strip-shaped support member 1 is arranged, and the water-blocking ridges 2 are embedded in the bottom of the concave surface 5, so that each concrete structure 4
The belt-shaped support member 1 fixed to the side, the side portion of the rubber waterproofing member 6 and the belt-shaped press fitting 7 are tightened and coupled by a bolt nut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water stop connection device for a cylindrical concrete structure that is buried in the ground to form a water channel and accommodates water pipes, gas pipes, power lines, and the like.

[0002]

[Prior Art]

 Conventionally, as a waterproofing connection device for a concrete structure, as shown in FIG. 4, a large number of anchor bolts 8 are inserted into a strip-shaped supporting member 1 and the strip-shaped supporting member 1 is provided at an end of a concrete structure 4. On the concave surface 5, the base end portion of the anchor bolt 8 is embedded in the bottom portion of the concave surface 5, and the rubber waterproofing material 6 is spread over the strip-shaped support members 1 in the pair of concrete structures 4 arranged at intervals. And the side portion of the rubber waterproofing material 6 and the band-shaped press fitting 7 are fitted into the anchor bolt 8 and the nut 9 screwed to the anchor bolt 8 is used to insert the rubber via the band-shaped press fitting 7. There is known a water stop connection device in which the water stop material 6 is clamped and fixed to the belt-shaped support member 1.

[0003]

[Problems to be solved by the device]

 In the case of the conventional water stop connection device for a concrete structure, when the band-shaped support member 1 into which the anchor bolt 8 is inserted is arranged on the inner surface of the form, and the concrete constituting the concrete structure 4 is placed, When air bubbles remain on the back surface of the strip-shaped support member 1 and therefore the formwork is removed to assemble the waterproofing connection device for the concrete structure, the gap between the back surface of the strip-shaped support member 1 and the concrete structure 4 is removed. Through it, water may enter the concrete structure 4.

[0004]

[Means for Solving the Problems]

 In order to advantageously solve the above-mentioned problems, in a water stop connection device for a concrete structure according to the present invention, a stop extending in the longitudinal direction of the strip-shaped supporting member is provided at an intermediate portion of the back surface of the metal strip-shaped supporting member 1 in the width direction. A water ridge 2 is provided to form a support member 3 with a water ridge, and the strip-shaped support member 1 is arranged on the concave surface 5 provided at the end of each concrete structure 4 to be connected to the water proof. The water blocking ridge 2 is embedded in the bottom of the concave surface 5, and the band-shaped support member 1 fixed to each concrete structure 4, the side of the rubber water blocking member 6 and the band-shaped press fitting 7 are tightened with bolts and nuts. Attach together.

[0005]

【Example】

 FIG. 3 shows a support member 3 with a waterproof strip used in an embodiment of the present invention, in which the longitudinal direction of the strip-shaped support member 1 is in the widthwise middle of the back surface of the steel strip-shaped support member 1. The steel water-blocking ridges 2 extending in parallel with the strip-shaped support member 1 are integrally connected to each other. ing.

FIG. 1 and FIG. 2 show a waterproof connection device for a concrete structure according to an embodiment of the present invention, which uses the support member 3 with the waterproof projection, and includes a plurality of anchor bolts 8. The strip-shaped support member 1 of the support member 3 with the water-blocking ridges inserted through is disposed on the concave surface 5 of the concrete structure 4, and the water-proof ridges 2 and the proximal end portions of the anchor bolts 8 are concave surfaces. A joint material 12 having a compressibility is interposed between the outer end faces 11 of the concrete structure 4 which is buried in the bottom portion of the concrete structure 5 and which is to be connected for water stop.

The side flanges 13 of the rubber waterproofing material 6 having a groove portion in the width direction are abutted on the surface of the strip-shaped support member 1 of each concrete structure 4 and each side The strip-shaped press fitting 7 is brought into contact with the surface of the flange 13, each anchor bolt 8 is inserted into the side flange 13 and the strip-shaped press fitting 7, and the nut 9 screwed to the anchor bolt 8 causes the strip-shaped press fitting 7 to be attached. The side flange 13 of the rubber waterproofing material 6 is clamped and fixed to the belt-shaped support member 1 via the.

FIGS. 4 to 6 show other examples of the support member 3 with the water blocking ridges. In the case of FIG. 4, the strip-shaped supporting member 1 is provided on the joint material installation side of the water blocking ridge 2. At a position close to each other, a large number of air vent holes 14 are provided at intervals in the longitudinal direction of the belt-shaped support member 1. In the case of FIG. 5 and FIG. 6, the strip-shaped support member 1 is composed of the support member body 1A having the water blocking ridges 2 and the auxiliary plate body 1B on the joint material installation side fixed to the support member body 1A by spot welding 15. When a plurality of air-releasing gaps 16 are provided between the support member main body 1A and the auxiliary plate body 1B, and the concrete that constitutes the concrete structure is cast, the air in the concrete is permeable for air-releasing. The air is discharged from the hole 14 and the air bleeding gap 16.

[0009]

[Effect of the device]

 According to the present invention, the waterproof strip 2 extending in the longitudinal direction of the strip-shaped support member is provided in the widthwise intermediate portion of the back surface of the metallic strip-shaped support member 1 to form the support member 3 with the waterproof strip. The concrete support structure 1 is arranged on the concave surface 5 provided at the end of each concrete structure 4 to be connected to the water stop, and the water stop projection 2 is embedded in the bottom of the concave surface 5 to form each concrete structure. Since the belt-shaped support member 1 fixed to the object 4, the side portion of the rubber water blocking member 6 and the band holding metal fitting 7 are fastened and coupled by the bolts and nuts, water leakage from the water blocking connection portion of the concrete structure can be easily performed. It can be reliably prevented by means, and the strip-shaped support member 1 can be reinforced by the water blocking projections 2.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a waterproof connection device for a concrete structure according to an embodiment of the present invention.

FIG. 2 is a plan view showing a waterproofing connection device for a concrete structure according to an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing a support member with a water blocking ridge.

FIG. 4 is a vertical cross-sectional perspective view showing another example of a support member with a water blocking ridge.

FIG. 5 is a vertical cross-sectional perspective view showing still another example of the support member with the water blocking projections.

FIG. 6 is a plan view of the support member with the water blocking ridges shown in FIG.

FIG. 7 is a vertical cross-sectional side view showing a conventional waterproof connection device for a concrete structure.

[Explanation of symbols]

 1 band-shaped support member 2 water-stop ridge 3 support member with water-stop ridge 4 concrete structure 5 concave surface 6 rubber water-stop material 7 band-shaped retainer 8 anchor bolt 9 nut 10 bolt insertion through hole 11 outer end surface 12 joint material 13 side flange 14 air vent hole 15 spot welding 16 air vent gap

Claims (1)

[Scope of utility model registration request] 1. A water blocking ridge 2 extending in the longitudinal direction of the band-shaped support member is provided in the widthwise intermediate portion of the back surface of the metal band-shaped support member 1 to form a water-proof ridge-supporting member 3, and The strip-shaped support member 1 is arranged on the concave surface 5 provided at the end of each concrete structure 4 to be water-connected, and the water-stop projection 2 is embedded in the bottom of the concave surface 5 to be fixed to each concrete structure 4. A waterproofing connection device for a concrete structure in which the band-shaped support member 1 and the side portions of the rubber waterproofing material 6 and the band-shaped press fitting 7 that have been subjected to tightening are coupled by bolts and nuts.