CN210975898U

CN210975898U - Prefabricated template system of basement outer wall post-cast strip

Info

Publication number: CN210975898U
Application number: CN201921257662.1U
Authority: CN
Inventors: 朱林; 王征; 容红波; 黄伟
Original assignee: Hunan No4 Engineering Corp Co ltd
Current assignee: Hunan No4 Engineering Corp Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-07-10
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a prefabricated template system of a post-cast strip of a basement exterior wall, which comprises an outer sealing plate covered on the upstream surface of the post-cast strip and an inner template covered on the back surface of the post-cast strip, wherein the left and right sides of the outer sealing plate and the inner template are respectively erected on the underground exterior wall on the left and right sides of the post-cast strip; the water retaining strip is arranged on the upstream face of the basement outer wall on the left side and the right side of the post-cast strip, the water retaining strip extends along the height direction of the basement outer wall, and the outer sealing plate clamp is arranged between the water retaining strips of the basement outer wall on the left side and the right side of the post-cast strip. The arrangement of the water retaining strip can block the direct infiltration of underground water, and the waterproof and concrete leakage-proof effects are greatly improved.

Description

Prefabricated template system of basement outer wall post-cast strip

Technical Field

The utility model belongs to the technical field of the building post-cast strip structure, especially, relate to a prefabricated template system of basement outer wall post-cast strip.

Background

The post-cast strip is a temporary construction joint reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent a possibly generated harmful crack of a cast-in-place reinforced concrete structure due to nonuniform self shrinkage or nonuniform settlement in the building construction. The post-cast strip temporarily divides the structure into a plurality of parts, the construction joint concrete is cast and tamped after a plurality of time after the internal contraction of the member, and the structure is connected into an integral zone. The remaining width of the post-cast strip is generally 700- & lt 1000 & gt mm.

The basement outer wall post-cast strip is an important part, and the quality of the post-cast strip is related to the use function of the structure and even the safety and reliability of the structure. At present, common basement exterior wall post-cast strip formwork support modes comprise a wood formwork, a steel formwork, a plastic formwork and the like. The construction methods are conventional except that the materials are different, and the construction procedures, the construction time and the construction effects are basically the same. The existing basement exterior wall post-cast strip formwork has the defects of poor waterproof and anti-leakage effect, poor energy conservation and environmental protection, poor economic benefit, long construction period and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, it is good to provide a water-proof effects, long service life, and with low costs, the short basement outer wall post-cast strip prefabricated formwork system of time limit for a project.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a prefabricated formwork system for a post-cast strip of an outer wall of a basement comprises an outer sealing plate covering the upstream surface of the post-cast strip and an inner formwork covering the downstream surface of the post-cast strip, wherein the left side and the right side of the outer sealing plate and the left side and the right side of the inner formwork are respectively erected on the outer wall of the basement on the left side and the right side of the post-cast strip; the water retaining strips are arranged on the upstream faces of the basement outer walls on the left side and the right side of the post-cast strip, extend along the height direction of the basement outer walls, and the outer sealing plate clamp is arranged between the water retaining strips on the basement outer walls on the left side and the right side of the post-cast strip.

The arrangement of the water retaining strip can block the direct infiltration of underground water, and the waterproof and concrete leakage-proof effects are greatly improved.

As a further improvement of the above technical solution:

and the region of the upstream surface of the basement outer wall, which is close to the post-cast strip, protrudes outwards to form the water retaining strip. Basement outer wall and breakwater integrated into one piece do not have the seam, and not only water-proof effects is good, and the preparation is convenient moreover, and the efficiency of construction is high.

In order to further improve the waterproof and leakage-proof effect of the structure, structural glue is arranged at the joint of the water retaining strip and the outer sealing plate.

For the waterproof leak protection thick liquid effect of further improvement this structure, be equipped with the sealing rod in the seam of outer shrouding and basement outer wall, the sealing rod is close to the post-cast strip sets up.

The outer sealing plate is connected with the inner template through a pull hook bolt.

And a pull ring is embedded in the outer sealing plate, the pull ring part extends into the post-pouring belt, one end of the pull hook bolt is hooked on the pull ring, and the other end of the pull hook bolt is fixed with the inner template through a fastener.

Compared with screw thread connection, the screw thread connection is waterproof, sliding threads are easy to generate, concrete leakage is caused due to the fact that a formwork is not tight, the structure utilizes the anchor pulling principle, the pulling hook bolt pulls the formwork more and more tightly, and formwork expansion is prevented.

The outer sealing plate is formed by splicing a plurality of outer sealing plate units along the height direction of the basement outer wall.

The abutted seams of two adjacent outer sealing plate units are high and low seams.

And water stop strips are arranged at the end parts, far away from the post-pouring belt, of the joints of the two adjacent outer sealing plate units.

The outer sealing plate unit is a concrete prefabricated member. The prefabricated external sealing plate unit can be manufactured by using the excess materials in each large-scale concrete pouring, so that the material can be saved, and the environment can be protected. The prefabricated outer sealing plate is not detached after being installed, and has enough rigidity and strength to resist the acting force of backfill soil.

Compared with the prior art, the utility model has the advantages of:

(1) the utility model discloses in, adopted high low seam, BW sealing rod and the weather resistant waterproof mode such as glue of structure, adopted the installation method who draws the bolt simultaneously, improved the closely knit nature of concrete, water-proof effects is good.

(2) The prefabricated outer sealing plate can be manufactured by utilizing the excess materials in each large-scale concrete pouring process, so that the material can be saved, and the environment can be protected.

(3) The prefabricated outer sealing plate is not detached after being installed, and has enough rigidity and strength to resist the acting force of backfill soil.

(4) After the prefabricated external sealing plate is installed, earthwork backfilling can be immediately organized, which is an advantage that other template structures cannot have, and the construction progress can be accelerated to the maximum extent.

(5) Because the backfill of the backfill soil is accelerated, the exposed time of the basement outer wall in the air is shortened, the occurrence of wall cracks can be greatly reduced, and the anti-permeability effect is improved.

(6) The utility model discloses prefabricated template system of basement outer wall post-cast strip, the crack is few water-proof effects good, the time limit for a project is fast, the benefit is showing, can improve the life of structure.

Drawings

Figure 1 is the utility model discloses prefabricated template system of basement outer wall post-cast strip

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Illustration of the drawings: 1. a basement exterior wall; 2. an outer sealing plate; 3. post-pouring a belt; 4. pulling the hook bolt; 5. an inner template; 6. a pull ring; 7. a water bar; 8. structural adhesive; 9. high and low seams; 10. a fastener; 11. a water stop strip.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

Example 1:

as shown in fig. 1 and 2, the prefabricated formwork system for the basement exterior wall post-cast strip of the embodiment includes an outer sealing plate 2 covering on the upstream surface of the post-cast strip 3, and an inner formwork 5 covering on the downstream surface of the post-cast strip 3, wherein the left and right sides of the outer sealing plate 2 and the inner formwork 5 are respectively erected on the basement exterior wall 1 on the left and right sides of the post-cast strip 3. And a water stop strip 11 is arranged in a joint of the outer sealing plate 2 and the basement outer wall 1, and the water stop strip 11 is arranged close to the post-pouring belt 3.

Outer shrouding 2 and interior template 5 link to each other through a plurality of draw-hook bolts 4, and pre-buried in outer shrouding 2 has pull ring 6, and pull ring 6 part stretches into post-cast strip 3, and on draw-hook bolt 4's one end colluded and locates pull ring 6, the other end that draw-hook bolt 4 passes through fastener 10 and is fixed with interior template 5.

Outer shrouding 2 is formed along the direction of height concatenation of basement outer wall 1 by the outer shrouding unit of polylith, and the piece joint of two adjacent outer shrouding units is height seam 9, is equipped with sealing rod 11 in the seam of two adjacent outer shrouding units, sealing rod 11 keeps away from 3 settings of post-cast strip. The high-low seam indicates that, in two adjacent outer shrouding units, the tip that the concatenation terminal surface of one of them outer shrouding unit is close to post-cast strip 3 inwards caves in and forms the splice groove, and the outside arch of tip that the concatenation terminal surface of another outer shrouding unit is close to post-cast strip 3 forms and splice groove complex splice joint, thereby splice joint inserts two adjacent outer shrouding units splices in the splice groove of adjacent outer shrouding unit.

The water stop strip 11 is a water stop strip (BW water stop strip) capable of expanding when meeting water.

The region that the upstream face of basement outer wall 1 is close to post-cast strip 3 outwards protrudes and forms water bar 7, and water bar 7 extends along the direction of height of basement outer wall 1, and between the water bar 7 on the basement outer wall 1 of the both sides about post-cast strip 3 was located to outer closing plate 2 card, the seam crossing of water bar 7 and outer closing plate 2 was equipped with the structure and glues 8.

The prefabricated outer sealing plate 2 is installed near the outer edge of the basement outer wall 1 to serve as an outer formwork of a post-pouring belt, the inner formwork 5 is in a conventional mode, and the prefabricated outer sealing plate 2 and the inner formwork 5 are connected into a whole through the pull hook bolt 4. The prefabricated outer sealing plate 2 is not detached after being installed, and is connected with the basement outer wall 1 and the post-cast strip 3 into a permanent structure.

The basement outer wall 1 is provided with a water retaining strip 7, the width of the water retaining strip is 30-40mm, the height of the water retaining strip is 25-30mm, the distance from the post-pouring edge is about 200mm, the prefabricated outer sealing plate 2 is of a reinforced concrete thin plate structure, the thickness of the prefabricated outer sealing plate 2 is 40-50mm, 4 round steel embedded pull rings 6 with the diameter of Ø 6mm are arranged on the prefabricated outer sealing plate 2, one ends of 4 hook bolts 4 passing through Ø 10 hook the embedded pull rings 6, and the other ends of the hook bolts are fixed with the inner template 5 through screws and nuts.

And BW water stop bars 11 are arranged along the edges of the post-cast strip between the prefabricated outer sealing plate 2 and the basement outer wall 1 to be tightly combined. The outer seam of the joint of the prefabricated outer sealing plate 2 and the water retaining strip 7 is sealed by weather-resistant structural adhesive 8. The prefabricated outer sealing plate 2 is connected up and down by adopting a high-low seam 9 mode, and BW water stop bars 11 are placed at seams.

The construction process of the prefabricated formwork system of the basement outer wall post-cast strip of the embodiment is as follows:

the basement outer wall 1 and the post-cast strip 3 are constructed according to design requirements and specifications, and meanwhile, a water retaining strip 7 is arranged on the outer side of the outer wall board close to the post-cast strip 200. After the construction of the external wall panel 1 is finished and the strength reaches 60% -70%, the prefabricated external sealing plate 2 can be installed. Before 2 prefabricated outer shroudings of installation and during the vertical concatenation of outer shrouding, paste BW sealing strip 11 along 3 edges of post-cast strip, between 2 boards of outer shrouding and the board in the outer wallboard at high-low seam. After the prefabricated outer sealing plate 2 is installed, weather-resistant structural adhesive 8 is adhered to the joint of the plate and the water retaining strip 7. The inner template 5 and the prefabricated outer sealing plate 2 are installed synchronously, and the pull hook bolt 4 is firmly connected with the embedded pull ring 6 and the inner template 5.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. A prefabricated formwork system for a post-cast strip of a basement outer wall comprises an outer sealing plate (2) covering the upstream surface of the post-cast strip (3) and an inner formwork (5) covering the downstream surface of the post-cast strip (3), wherein the left side and the right side of the outer sealing plate (2) and the left side and the right side of the inner formwork (5) are respectively erected on the basement outer wall (1) on the left side and the right side of the post-cast strip (3); the water-retaining strip-type post-cast strip is characterized in that water retaining strips (7) are arranged on the upstream faces of the basement outer walls (1) on the left side and the right side of the post-cast strip (3), the water retaining strips (7) extend along the height direction of the basement outer walls (1), and the outer sealing plates (2) are clamped between the water retaining strips (7) on the basement outer walls (1) on the left side and the right side of the post-cast strip (3).

2. The prefabricated formwork system for the basement exterior wall post-cast strip according to claim 1, characterized in that the area of the upstream surface of the basement exterior wall (1) close to the post-cast strip (3) protrudes outwards to form the water retaining strip (7).

3. The prefabricated formwork system for the post-cast strip of the basement exterior wall as claimed in claim 1 or 2, wherein structural adhesive (8) is arranged at the joint of the water retaining strip (7) and the outer sealing plate (2).

4. The prefabricated formwork system for the post-cast strip of the basement exterior wall according to claim 1 or 2, wherein a water stop strip (11) is arranged in a joint of the outer sealing plate (2) and the basement exterior wall (1), and the water stop strip (11) is arranged close to the post-cast strip (3).

5. The prefabricated formwork system for the post-cast strip of the basement exterior wall as claimed in claim 1 or 2, wherein the outer sealing plate (2) and the inner formwork (5) are connected through a draw bolt (4).

6. The prefabricated formwork system for the post-cast strip of the basement exterior wall according to claim 5, wherein a pull ring (6) is embedded in the outer sealing plate (2), part of the pull ring (6) extends into the post-cast strip (3), one end of the pull hook bolt (4) is hooked on the pull ring (6), and the other end of the pull hook bolt (4) is fixed with the inner formwork (5) through a fastener (10).

7. The prefabricated formwork system for the post-cast strip of the basement exterior wall as claimed in claim 1, wherein the outer sealing plate (2) is formed by splicing a plurality of outer sealing plate units along the height direction of the basement exterior wall (1).

8. The prefabricated formwork system for the post-cast strip of the basement exterior wall as claimed in claim 6, wherein the abutted seams of two adjacent outer sealing plate units are high and low seams (9).

9. The prefabricated formwork system for the basement exterior wall post-cast strip according to claim 7 or 8, wherein a water stop bar (11) is arranged at the end, far away from the post-cast strip (3), of the joint of two adjacent outer sealing plate units.

10. The prefabricated formwork system for the post-cast strip of the outer wall of the basement according to claim 7, wherein the outer sealing plate unit is a concrete prefabricated member.