CN214497605U

CN214497605U - Waterproof structure of basement bottom plate post-cast strip

Info

Publication number: CN214497605U
Application number: CN202120211160.6U
Authority: CN
Inventors: 王旋; 龙孝君; 郭俊
Original assignee: Nanjing Kunjia Waterproof Anticorrosive Insulation Engineering Co ltd
Current assignee: Nanjing Kunjia Waterproof Anticorrosive Insulation Engineering Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-26
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to a waterproof construction of basement bottom plate post-cast strip uses the field of post-cast strip in building engineering, and it includes concrete bottom plate and post-cast strip, form continuous cockscomb structure seam between concrete bottom plate and the post-cast strip, the rubber waterstop has been buried underground between concrete bottom plate and the post-cast strip, the rubber waterstop is towards the inside extension of concrete bottom plate and the post-cast strip of both sides. This application has the phenomenon that uses the rubber waterstop not to have the corrosion and takes place, can improve the long-term water-proof effects of post-cast strip.

Description

Waterproof structure of basement bottom plate post-cast strip

Technical Field

The application relates to the field of post-cast strips in constructional engineering, in particular to a waterproof structure of a post-cast strip of a bottom plate of a basement.

Background

The post-cast strip is a concrete strip reserved at the corresponding position of a foundation slab, a wall and a beam in order to prevent harmful cracks of a cast-in-place reinforced concrete structure possibly generated due to factors such as environmental temperature change, uneven concrete shrinkage, uneven structure settlement and the like in building construction, the construction joint concrete is poured after a plurality of times after the concrete strip shrinks inside the member, and the structure is connected into a whole.

Chinese patent No. CN204676609U discloses a reinforced waterproof structure of a basement floor post-cast strip, which comprises a basement floor, a post-cast strip, a cushion layer, a thickened cushion layer and a waterproof roll under the post-cast strip, wherein the basement floor is a pre-cast floor, and a concave-convex tongue-and-groove joint is left between the basement floor and the post-cast strip; the middle parts of two side seams between the first pouring bottom plate and the later pouring belt are provided with water stop steel plates vertical to the seams, and the joint of the upper surface of each water stop steel plate and the rabbet in the later pouring belt is embedded with a slow expansion type putty water stop strip; the waterproof coiled material is arranged below the basement bottom plate and the post-cast strip; a cushion layer is arranged below the waterproof coiled material; the lower part of the cushion layer is provided with a post-pouring lower thickening cushion layer, the thickness of the post-pouring lower thickening cushion layer is 150mm larger than that of the cushion layer in other areas of the bottom plate, the post-pouring lower thickening cushion layer extends to the bottom plates at two sides by 450mm, and a bidirectional reinforcing mesh is arranged below the post-pouring lower thickening cushion layer.

In view of the above-mentioned related technologies, the inventors believe that there are defects that the water-stop steel plate is easy to rust for a long time, has a short service life, and can reduce the waterproof effect of the post-cast strip.

SUMMERY OF THE UTILITY MODEL

In order to improve the easy corrosion of stagnant water steel sheet long-term use and reduce the problem of post-cast strip water-proof effects, this application provides a waterproof construction in basement bottom plate post-cast strip.

The application provides a waterproof construction in basement bottom plate post-cast strip adopts following technical scheme:

the waterproof structure of the post-cast strip of the basement floor comprises a concrete floor and a post-cast strip, wherein a continuous zigzag seam is formed between the concrete floor and the post-cast strip, a rubber water stop is embedded between the concrete floor and the post-cast strip, and the rubber water stop extends towards the insides of the concrete floor and the post-cast strip on two sides.

Through adopting above-mentioned technical scheme, form continuous cockscomb structure seam between concrete bottom plate and the post-cast strip for hug closely mutually between concrete bottom plate and the post-cast strip, water-proof effects is good, and rubber waterstop long service life when having guaranteed the good water-proof effects of concrete bottom plate with post-cast strip seam department, can not have the phenomenon of corrosion to take place, thereby effectively improve the long-term water-proof effects of post-cast strip.

Optionally, two reinforcing steel bars are buried in the concrete bottom plate and the post-cast strip respectively, and one of the two reinforcing steel bars located on the same side is located above the rubber water stop and compresses the rubber water stop, and the other reinforcing steel bar is located below the rubber water stop and compresses the rubber water stop.

Through adopting above-mentioned technical scheme, because rubber waterstop texture is comparatively soft, bury underground during the construction inside concrete bottom plate and post-cast strip, very easily produce and warp and take place the aversion, can fix the position of rubber waterstop through the reinforcing bar for the rubber waterstop is difficult for taking place the aversion, thereby is convenient for the rubber waterstop to carry out waterproof to the post-cast strip steadily for a long time.

Optionally, a buckling groove is formed in one side, facing the rubber water stop, of the reinforcing steel bar, and a buckling edge matched with the buckling groove is arranged on the rubber water stop.

Through adopting above-mentioned technical scheme, through the mutual lock joint in lock joint arris and lock joint groove, play the effect to rubber waterstop further fixed to further restriction rubber waterstop takes place to shift.

Optionally, the inside top and the below that are located the rubber waterstop of concrete bottom plate all inlay with cockscomb structure seam linking department and be equipped with the water inflation sealing rod, the top and the below that lie in the rubber waterstop in the post-cast strip also inlay with cockscomb structure seam linking department and be equipped with the water inflation sealing rod.

Through adopting above-mentioned technical scheme, meet water inflation sealing rod and meet water after-emergence inflation, play reliable stagnant water, water-proof effects to the post-cast strip, effectually block that groundwater makes progress the seepage from the cockscomb structure seam crossing between concrete bottom plate and the post-cast strip.

Optionally, structural adhesive is poured into the zigzag seam.

By adopting the technical scheme, the structural adhesive is poured in the zigzag joint for bonding and sealing the joint between the concrete bottom plate and the post-cast strip, so that the waterproof effect of the post-cast strip is further improved.

Optionally, a plain concrete cushion layer is arranged below the concrete bottom plate and the post-cast strip, and waterproof rolls are laid between the concrete bottom plate and the post-cast strip and the plain concrete cushion layer.

By adopting the technical scheme, the plain concrete cushion layer is used for improving the stability of the foundation below the concrete bottom plate and the post-cast strip, and the waterproof coiled material is paved between the concrete bottom plate and the post-cast strip as well as the plain concrete cushion layer, so that the groundwater can be effectively prevented from upwards leaking from the zigzag seams between the concrete bottom plate and the post-cast strip.

Optionally, a steel plate net is arranged above the waterproof coiled material and compresses the waterproof coiled material, and the steel plate net, the concrete bottom plate and the post-cast strip are integrally cast and molded.

Through adopting above-mentioned technical scheme, the steel sheet net compresses tightly waterproofing membrane, can restrain waterproofing membrane's position to reduce waterproofing membrane and take place the possibility of aversion, make waterproofing membrane carry out stagnant water, waterproof steadily.

Optionally, a local thickening cushion layer is arranged below the plain concrete cushion layer, and the local thickening cushion layer is located under the post-cast strip.

Through adopting above-mentioned technical scheme, local thickening bed course all adopts plain concrete to pour with plain concrete bed course and forms for the steadiness of the lower ground of post-cast strip is further improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the rubber waterstop is embedded between the concrete bottom plate and the post-cast strip, so that the service life is long, the good waterproof effect of the zigzag joint between the concrete bottom plate and the post-cast strip is ensured, and meanwhile, the phenomenon of corrosion is avoided, so that the long-term waterproof effect of the post-cast strip is effectively improved;

2. the position of the rubber water stop can be fixed through the steel bar, so that the rubber water stop is not easy to shift, and the rubber water stop can conveniently and stably prevent the post-pouring strip from water for a long time;

3. waterproof coiled materials are paved between the concrete bottom plate and the post-cast strip as well as the plain concrete cushion layer, so that the underground water can be effectively prevented from upwards leaking from the zigzag seams between the concrete bottom plate and the post-cast strip.

Drawings

Fig. 1 is a sectional view of a waterproof structure of a basement floor post-cast strip in an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals: 1. a concrete floor; 2. post-pouring a belt; 3. a zigzag seam; 4. a rubber waterstop; 41. buckling edges; 5. reinforcing steel bars; 51. a fastening groove; 6. a water-swelling sealing strip when meeting water; 7. structural adhesive; 8. a plain concrete cushion; 9. waterproof coiled materials; 10. steel plate nets; 11. the cushion layer is locally thickened.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses waterproof construction in basement bottom plate post-cast strip. Referring to fig. 1, the waterproof structure of the basement floor post-cast strip comprises a concrete bottom plate 1 and a post-cast strip 2, a continuous zigzag seam 3 is formed between the concrete bottom plate 1 and the post-cast strip 2, and structural glue 7 is poured in the zigzag seam 3, so that the concrete bottom plate 1 and the post-cast strip 2 are tightly bonded, the sealing effect of the zigzag seam 3 is improved, and the waterproof effect of the post-cast strip 2 is further improved.

Referring to fig. 1 and 2, a rubber water stop 4 is buried between a concrete bottom plate 1 and a post-cast strip 2, the rubber water stop 4 penetrates through a zigzag seam 3 along the horizontal direction, one side of the rubber water stop 4 extends into the concrete bottom plate 1, the other side extends into the post-cast strip 2, the rubber water stop 4 guarantees good waterproof effect of the zigzag seam 3 between the concrete bottom plate 1 and the post-cast strip 2, the service life is long, no corrosion phenomenon occurs, and therefore long-term waterproof effect of the post-cast strip 2 is effectively improved.

Referring to fig. 2, reinforcing bars 5 are buried above and below the rubber water stop 4 in the concrete bottom plate 1, the reinforcing bars 5 are also buried above and below the rubber water stop 4 in the post-cast strip 2, the two reinforcing bars 5 above the rubber water stop 4 compress the rubber water stop 4, and the two reinforcing bars 5 below the rubber water stop 4 compress the rubber water stop 4, so that the rubber water stop 4 can be fixed to limit the displacement of the rubber water stop 4. And each reinforcing steel bar 5 is all seted up the cross section and is the buckle connection groove 51 of dovetail shape on one side of rubber waterstop 4, be provided with the cross section also and be the dovetail shape on rubber waterstop 4 and with buckle connection groove 51 matched with lock joint arris 41, lock joint arris 41 and rubber waterstop 4 material is the same and integrated into one piece, lock joint arris 41 lock joint is in buckle connection groove 51, plays the effect that further restriction rubber waterstop 4 takes place the aversion for rubber waterstop 4 can be long-term stably to post-cast 2 waterproof.

Referring to fig. 2, the top and the below that are located rubber waterstop 4 inside concrete bottom plate 1 all inlay with the linking department of cockscomb structure seam 3 and be equipped with water inflation sealing rod 6, and also inlay with water inflation sealing rod 6 in the linking department of the inside top and the below that are located rubber waterstop 4 and cockscomb structure seam 3 that waters behind 2, water inflation sealing rod 6 can take place to expand after meeting water, can play reliable stagnant water, water-proof effects to post-cast 2, thereby effectual groundwater of stopping is from 3 upwards leakages of cockscomb structure seam between concrete bottom plate 1 and post-cast 2.

Referring to fig. 1, the below of concrete floor 1 and post-cast strip 2 is provided with plain concrete bed course 8, and the below of plain concrete bed course 8 is provided with local thickening bed course 11, and local thickening bed course 11 also adopts plain concrete to pour and forms, and local thickening bed course 11 is located post-cast strip 2 under, can improve the steadiness of concrete floor 1 and 2 below foundations of post-cast strip through plain concrete bed course 8 and local thickening bed course 11.

Referring to fig. 1, waterproofing membrane 9 has been laid between concrete bottom plate 1 and post-cast strip 2 and plain concrete bed course 8, waterproofing membrane 9's top is provided with steel screen 10, steel screen 10 and concrete bottom plate 1 and post-cast strip 2 integrated into one piece pour the shaping, steel screen 10 compresses tightly waterproofing membrane 9, can restrict waterproofing membrane 9 and take place to shift, can effectually prevent groundwater from upwards leaking from the cockscomb structure seam 3 department between concrete bottom plate 1 and the post-cast strip 2 through waterproofing membrane 9, thereby improve the water-proof effects of post-cast strip 2.

The implementation principle of the waterproof structure of basement bottom plate post-cast strip of this application embodiment is: the rubber water stop 4 is buried underground between the concrete bottom plate 1 and the post-pouring belt 2, the rubber water stop 4 penetrates through the zigzag seam 3 along the horizontal direction, one side of the rubber water stop 4 extends into the concrete bottom plate 1, the other side of the rubber water stop extends into the post-pouring belt 2, the rubber water stop 4 guarantees the good waterproof effect of the zigzag seam 3 between the concrete bottom plate 1 and the post-pouring belt 2, the service life is long, the phenomenon of corrosion cannot occur, and therefore the long-term waterproof effect of the post-pouring belt 2 is effectively improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a waterproof construction in basement bottom plate post-cast strip, includes concrete bottom plate (1) and post-cast strip (2), its characterized in that: the concrete bottom plate (1) and the post-cast strip (2) form a continuous zigzag seam (3), a rubber water stop (4) is buried between the concrete bottom plate (1) and the post-cast strip (2), and the rubber water stop (4) extends towards the inner parts of the concrete bottom plate (1) and the post-cast strip (2) on two sides.

2. The waterproof structure of the basement floor post-cast strip according to claim 1, characterized in that: two reinforcing steel bars (5) are buried in the concrete bottom plate (1) and the post-pouring belt (2) respectively, two reinforcing steel bars (5) located on the same side are arranged in the two reinforcing steel bars (5), one reinforcing steel bar (5) is located above the rubber water stop belt (4) and compresses the rubber water stop belt (4), and the other reinforcing steel bar (5) is located below the rubber water stop belt (4) and compresses the rubber water stop belt (4).

3. The waterproof structure of the basement floor post-cast strip according to claim 2, characterized in that: buckling grooves (51) are formed in one side, facing the rubber water stop belt (4), of the reinforcing steel bar (5), and buckling edges (41) matched with the buckling grooves (51) are arranged on the rubber water stop belt (4).

4. The waterproof structure of the basement floor post-cast strip according to claim 1, characterized in that: concrete bottom plate (1) inside top and the below that is located rubber waterstop (4) and cockscomb structure seam (3) link up department all inlays and is equipped with water inflation sealing rod (6), the top and the below that back-pouring strip (2) inside is located rubber waterstop (4) and cockscomb structure seam (3) link up department also inlays and is equipped with water inflation sealing rod (6).

5. The waterproof structure of the basement floor post-cast strip according to claim 1, characterized in that: and structural adhesive (7) is poured into the zigzag seams (3).

6. The waterproof structure of the basement floor post-cast strip according to claim 1, characterized in that: and a plain concrete cushion layer (8) is arranged below the concrete bottom plate (1) and the post-cast strip (2), and waterproof coiled materials (9) are paved between the concrete bottom plate (1) and the post-cast strip (2) and the plain concrete cushion layer (8).

7. The waterproof structure of the basement floor post-cast strip according to claim 6, characterized in that: a steel plate net (10) is arranged above the waterproof coiled material (9), the steel plate net (10) compresses the waterproof coiled material (9), and the steel plate net (10), the concrete bottom plate (1) and the post-cast strip (2) are integrally cast and molded.

8. The waterproof structure of the basement floor post-cast strip according to claim 6, characterized in that: the lower part of plain concrete bed course (8) is provided with local thickening bed course (11), local thickening bed course (11) are located post-cast strip (2) under.