CN217924170U - Pouring structure construction joint node - Google Patents

Abstract

The application discloses pouring structure construction joint node belongs to building engineering technical field. The pouring structure construction joint node comprises a core barrel and a floor slab fixedly arranged along the circumferential direction of the core barrel, wherein a water retaining bank is integrally formed at a position, close to the core barrel, of the floor slab, the water retaining bank is fixedly arranged along the circumferential direction of the core barrel, an annular groove is formed in the connecting position of the core barrel and the floor slab along the circumferential direction of the core barrel, an expansion water stop strip is arranged in the annular groove in a winding mode, and one side, away from the annular groove, of the expansion water stop strip abuts against the floor slab. The application provides a cast structure construction joint node sets up the inflation sealing rod through the hookup location at a core section of thick bamboo and floor, can fill the seam of a core section of thick bamboo and floor after the inflation sealing rod meets water inflation to prevent the moisture along the seam seepage, and through pour the manger plate bank on the floor integratively, increased the holistic height of floor, in order to further improve the seepage phenomenon.

Description

Pouring structure construction joint node

Technical Field

The application relates to the technical field of constructional engineering, especially, relate to a cast structure construction joint node.

Background

In the building engineering, the leakage is a common quality common fault, and particularly a roof structure adopting a core tube advance-outer frame split-level unequal-height synchronous flow comprehensive construction method is adopted.

Generally, the joint between the core tube constructed first and the outer frame floor slab cast later is a waterproof weak point, which is easy to leak, if the leakage occurs, the use function of the core tube and the outer frame floor slab will be affected, especially for the buildings which are delivered for use, the great difficulty is caused to the property management and maintenance engineering, and the problem is a long-standing problem.

SUMMERY OF THE UTILITY MODEL

In view of this, the purpose of this application is in order to overcome the not enough among the prior art, provides a casting structure construction joint node to solve the easy seepage's of the easy technical problem in the seam crossing department of the outer frame floor of the core section of thick bamboo of first construction and later casting among the prior art.

In order to solve the technical problem, the application provides:

a cast structure construction joint node, comprising:

a core barrel;

the floor slab is fixedly arranged along the circumferential direction of the core barrel, and a water retaining bank is integrally formed at the position, close to the core barrel, of the floor slab and is fixedly arranged along the circumferential direction of the core barrel;

the annular groove is formed in the connecting position of the core barrel and the floor along the circumferential direction of the core barrel, an expansion water stop strip is arranged in the annular groove in a winding mode, and the expansion water stop strip deviates from one side of the annular groove and abuts against the floor.

In addition, according to the pouring structure construction joint node of this application, can also have following additional technical characterstic:

in some embodiments of the present application, a first arc-shaped reinforcing portion is disposed between the water blocking ridge and the core barrel, and the first arc-shaped reinforcing portion is disposed along a circumferential direction of the core barrel; and/or

And a second arc-shaped reinforcing part is arranged between the water retaining ridge and the floor slab and is arranged along the circumferential direction of the water retaining ridge.

In some embodiments of the present application, the casting structure construction joint further includes a first waterproof layer, a portion of the core tube away from the water-retaining sill is an exposed portion, and the first waterproof layer is continuously laid on the exposed portion of the core tube, the water-retaining sill and the surface of the floor slab.

In some embodiments of the present application, a second waterproof layer is laid on the surface of the first waterproof layer.

In some embodiments of the present application, the first waterproof layer is a polyurethane flexible waterproof layer and the second waterproof layer is a self-adhesive modified asphalt waterproofing roll layer.

In some embodiments of this application, pouring structure construction joint node still includes the wall decorative layer, the wall decorative layer is followed the circumference setting of a core section of thick bamboo, just the wall decorative layer is being close to the position of manger plate bank is provided with the drip strip, the drip strip is followed the circumference setting of a core section of thick bamboo.

In some embodiments of this application, pouring structure construction joint node still includes waterproof layer, waterproof layer lays in succession the surface of manger plate bank with the surface of floor, just partly of waterproof layer wears to locate wall decorative layer and butt in the surface of a core section of thick bamboo.

In some embodiments of the present application, a predetermined angle θ is formed between a surface of the waterproof protection layer opposite to the top surface of the water blocking sill and the top surface of the water blocking sill, and satisfies a relation: theta is more than or equal to 5 degrees and less than or equal to 20 degrees.

In some embodiments of this application, the strip that drips includes roof, bottom plate and riser, the roof is worn to locate wall decorative layer and butt in the surface of a core section of thick bamboo, the bottom plate with the wall decorative layer is connected, the riser connect in the roof with between the bottom plate, just the riser is on a parallel with the central line of a core section of thick bamboo.

In some embodiments of the present application, the top plate and the riser form a predetermined angle β therebetween, satisfying the relationship: beta is more than 90 degrees and less than or equal to 110 degrees.

Compared with the prior art, the beneficial effects of this application are:

the application provides a cast structure construction joint node, including a core section of thick bamboo and the fixed floor that sets up of circumference along a core section of thick bamboo, the floor is at the position an organic whole that is close to a core section of thick bamboo and is formed with the manger plate bank, and the manger plate bank sets up along the circumference of a core section of thick bamboo is fixed. The connecting position of the core barrel and the floor slab is provided with an annular groove along the circumferential direction of the core barrel, an expansion water stop strip is wound in the annular groove, and one side of the expansion water stop strip, which is deviated from the annular groove, is abutted to the floor slab.

The application provides a cast structure construction joint node, at first, set up the inflation sealing rod at the hookup location of core section of thick bamboo and floor, the seam of core section of thick bamboo and floor can be filled after the inflation sealing rod meets water inflation to prevent the moisture along the seam seepage. Secondly, the water retaining bank is integrally poured on the floor slab so as to increase the integral height of the floor slab and further improve the leakage phenomenon.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 illustrates a schematic structural view of a cast structure construction joint node in some embodiments of the present application;

FIG. 2 is an enlarged partial view of section A of FIG. 1;

FIG. 3 is an enlarged partial view of section B of FIG. 1;

FIG. 4 illustrates a schematic partial structural view of a core barrel in some embodiments of the present application;

fig. 5 illustrates a partial structural schematic of a cast structure construction joint node in some embodiments of the present application.

Description of the main element symbols:

100-pouring structural construction joint nodes; 10-a core barrel; 11-roughening; 12-the centre line of the core barrel; 20-a floor slab; 30-water retaining ridge; 40-expansion water stop bar; 51-a first arcuate reinforcement; 52-a second arcuate reinforcement; 53-a first waterproof layer; 54-a second waterproof layer; 55-sealing glue; 60-waterproof protective layer; 70-a wall surface decoration layer; 80-drip strip; 81-top plate; 82-riser; 83-bottom plate; 90-reverse threshold.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Before the present embodiment is explained, first, the related concepts will be briefly explained:

a core barrel: the core tube is arranged at the central part of a building, the central core tube is formed by enclosing an elevator shaft, a stair, a ventilation shaft, a cable shaft, a public washroom and partial equipment rooms, an outer frame inner tube structure is formed by the core tube and a peripheral frame, and reinforced concrete is poured. The structure is very beneficial to the stress of the structure and has excellent shock resistance. Is a mainstream structure form widely adopted by international super high-rise buildings.

Expansion water stop strip: the expansion water stop strip is a unique new rubber product and is a general name of a putty-type water stop strip and a product-type water stop strip with water expansion performance. The rubber generates 2 to 3 times of expansion deformation after meeting water, is full of all irregular surfaces, cavities and gaps of seams, generates huge contact pressure and thoroughly prevents leakage.

Flexible waterproof polyurethane layer: the waterproof paint is a double-component reaction curing type synthetic polymer waterproof paint, the component A is a polyurethane prepolymer obtained by the condensation polymerization of polyether and isocyanate, and the component B is a colored liquid consisting of a plasticizer, a curing agent, a thickening agent, a coagulant and a filler. When in use, the component A and the component B are mixed according to a certain proportion, evenly stirred and then coated on a base surface needing construction, and after a plurality of hours, the mixture is solidified into a waterproof coating film which is rich in elasticity, toughness and durability.

Self-adhesive polymer modified asphalt waterproof roll material: the coiled material has the characteristics of good impermeability, low-temperature flexibility, deformation resistance, self-healing property and the like, is easy to construct, can improve the laying speed, and accelerates the project progress.

Referring to fig. 1, an embodiment of the present application provides a casting structure construction joint 100, which belongs to the technical field of building engineering and is mainly used for solving the leakage problem of a weak position of a twice-cast structure roof.

Referring to fig. 1 and 2 together, the construction joint 100 of the cast structure provided in this embodiment may include a core tube 10 and a floor slab 20 fixedly disposed along a circumferential direction of the core tube 10, wherein the floor slab 20 is integrally formed with a water blocking sill 30 at a position close to the core tube 10, and the water blocking sill 30 is fixedly disposed along the circumferential direction of the core tube 10.

Wherein, the annular has been seted up along the circumference of a core section of thick bamboo 10 in the connected position of a core section of thick bamboo 10 and floor 20, and the annular is interior around being equipped with expansion sealing rod 40, and one side that expansion sealing rod 40 deviates from the annular is supported in floor 20.

In this embodiment, specifically, the core barrel 10 is a columnar structure, the floor slab 20 is disposed along the circumferential direction of the core barrel 10, that is, the floor slab 20 is poured on the outer side wall of the core barrel 10 around the core barrel 10, the water-blocking threshold 30 and the floor slab 20 are poured simultaneously, one side of the water-blocking threshold 30 is integrally formed on the water-blocking threshold 30, and the other side of the water-blocking threshold 30 is connected with the core barrel 10, so that the overall height of the floor slab 20 near the core barrel 10 is increased, and the effect of preventing the leakage at the joint between the core barrel 10 and the floor slab 20 is achieved. The core section of thick bamboo 10 is seted up along its circumference with inflation sealing rod 40 matched with annular, inflation sealing rod 40 is around locating in the annular, also the inflation sealing rod 40 encircles a week along the lateral wall of core section of thick bamboo 10, inflation sealing rod 40 respectively butt between the inner wall of annular and floor 20, after inflation sealing rod 40 met water, it can expand rapidly, thereby fill up the irregular surface of core section of thick bamboo 10 and floor 20 seam crossing, hole and clearance, produce huge contact pressure simultaneously, in order to prevent the seepage.

It can be understood that, in the construction joint node 100 of the pouring structure provided in the embodiment, by providing the expansion water stop strip 40 at the connection position of the core tube 10 and the floor slab 20, the expansion water stop strip 40 can fill the joint between the core tube 10 and the floor slab 20 after expanding with water, so as to prevent water from leaking along the joint, and by integrally pouring the water-retaining ridge 30 on the floor slab 20, the overall height of the floor slab 20 is increased, so as to further improve the leakage phenomenon.

Referring to fig. 4, optionally, the core tube 10 has a chisel 11 in the circumferential direction, and the core tube 10 is connected to the floor 20 through the chisel 11, so that the core tube 10 is connected to the floor 20 more tightly, and further, the occurrence of leakage at the joint between the core tube 10 and the floor 20 is avoided.

Referring to fig. 1, in some embodiments, the distance between the side of the water dam 30 away from the floor slab 20 and the floor slab 20 is H1, which satisfies the following relation: h1 is more than or equal to 200mm to obtain better anti-seepage effect.

In this embodiment, a distance between the floor 20 and a side of the water stop sill 30 away from the floor 20 is H1, that is, a height of the water stop sill 30 is H1.

For example, the distance H1 between the floor 20 and the side of the water sill 30 away from the floor 20 may be set to 200mm, 205mm, 250mm, 270mm, and the like, and the larger the distance H1 is, the better the anti-leakage effect of the water sill 30 is.

Referring to fig. 2 and 5 together, in some embodiments of the present application, optionally, a first arc-shaped reinforcing portion 51 is disposed between the water blocking sill 30 and the core barrel 10 along the circumferential direction of the core barrel 10, and/or a second arc-shaped reinforcing portion 52 is disposed between the water blocking sill 30 and the floor slab 20 along the circumferential direction of the water blocking sill 30.

In this embodiment, the first arc-shaped reinforcing portion 51 and the second arc-shaped reinforcing portion 52 are commonly called as R corners in the building engineering, and the first arc-shaped reinforcing portion 51 and the second arc-shaped reinforcing portion 52 can prevent the right-angled portion between the core tube 10 and the water retaining sill 30 and the right-angled portion between the water retaining sill 30 and the floor slab 20 from generating stress concentration, so as to improve the connection strength among the core tube 10, the floor slab 20, and the water retaining sill 30.

Referring to fig. 2 and 3 together, in some embodiments of the present application, optionally, the casting structure construction joint 100 further includes a first waterproof layer 53, a portion of the core barrel 10 away from the water-retaining sill 30 is an exposed portion, and the first waterproof layer 53 is continuously laid on the surfaces of the exposed portion of the core barrel 10, the water-retaining sill 30 and the floor slab 20.

Specifically, the first waterproof layer 53 is laid on the surface of the exposed part of the core cylinder 10, the surface of the water-retaining sill 30 and the surface of the floor slab 20, and each part of the waterproof layer is laid continuously, wherein the first waterproof layer 53 covers at least a part of the outer side wall of the core cylinder 10, covers the whole outer surface of the water-retaining sill 30 and covers at least a part of the area of the floor slab 20, and the first waterproof layer 53 is arranged to further relieve the leakage phenomenon at the joint of the core cylinder 10 and the floor slab 20.

Optionally, the first waterproof layer 53 is a flexible polyurethane waterproof layer, and after the waterproof layer is set, the waterproof layer can be solidified into a waterproof coating film rich in elasticity, toughness and durability after several hours of reaction, so as to achieve a good anti-seepage effect.

In addition, referring to fig. 1, a distance between one end of the first waterproof layer 53 away from the water blocking sill 30 and the top surface of the water blocking sill 30 is H2, and satisfies a relation: h2 is more than or equal to 250mm, so as to achieve better anti-leakage effect.

For example, the distance H2 between one end of the first waterproof layer 53 away from the water blocking sill 30 and the top surface of the water blocking sill 30 may be set to 250mm, 260mm, 265mm, 270mm, or the like.

With continued reference to fig. 2 and 3, in the embodiment of the present application in which the cast structure construction joint 100 further includes the first waterproof layer 53, optionally, a second waterproof layer 54 is laid on the surface of the first waterproof layer 53.

In this embodiment, specifically, the casting structure construction joint 100 further includes a second waterproof layer 54, and the second waterproof layer 54 is laid on the surface of the first waterproof layer 53 and covers the exposed portion of the core tube 10, the water-retaining ridge 30 and the floor slab 20, so as to further improve the leakage phenomenon at the joint between the core tube 10 and the floor slab 20.

Optionally, the second waterproof layer 54 is an autohension modified asphalt waterproof roll layer, and the roll layer has the characteristics of good water impermeability, good deformation resistance, good self-healing property and the like, is easy to construct, and improves the laying efficiency of the second waterproof layer 54.

Similarly, the distance between the end of the second waterproof layer 54 away from the water retaining sill 30 and the top surface of the water retaining sill 30 satisfies the relationship in the previous embodiment.

Referring to fig. 1 and 3 together, in some embodiments of the present application, optionally, the cast structure construction joint node 100 further includes a wall surface decoration layer 70, the wall surface decoration layer 70 is disposed along the circumferential direction of the core tube 10, and the wall surface decoration layer 70 is disposed with a water dropping strip 80 along the circumferential direction of the core tube 10 at a position close to the water retaining sill 30.

Specifically, the wall surface decoration layer 70 is laid along the circumference of the core tube 10, the wall surface decoration layer 70 is provided with the water dripping strip 80 at a position close to the water retaining bank 30, the water dripping strip 80 is wound around the surface of the wall surface decoration layer 70 along the circumference of the core tube 10, and the arrangement of the water dripping strip 80 can guide the water leaked from the joint of the wall surface decoration layer 70 and the core tube 10, so that the water dripping strip drips on the water retaining bank 30.

In addition, when the first waterproof layer 53 and the second waterproof layer 54 are sequentially laid on the water blocking sill 30, the leaked water can drop on the second waterproof layer 54, and the leaked water is prevented from flowing to the joint between the core tube 10 and the water blocking sill 30.

Optionally, the distance between the center line of the water dripping strip 80 in the radial direction of the core tube 10 and the top surface of the water retaining sill 30 is set to be greater than or equal to H2, that is, the distance between the water dripping strip 80 and the water retaining sill 30 is greater than or equal to the distance between the end of the first waterproof layer 53 away from the water retaining sill 30 and the water retaining sill 30, that is, the height of the water dripping strip 80 is greater than or equal to the height of the first waterproof layer 53, so as to effectively prevent the first waterproof layer 53 and the second waterproof layer 54 from being damaged by the water leaked from the seam between the wall surface decoration layer 70 and the core tube 10, and the waterproof effects of the two layers are affected.

Referring to fig. 1 and fig. 2 together, in the embodiment of the above wall surface decoration layer 70 of the present application, optionally, the casting structure construction joint node 100 further includes a waterproof protection layer 60, the waterproof protection layer 60 is continuously laid on the surfaces of the water-blocking sill 30 and the floor slab 20, and a part of the waterproof protection layer 60 is inserted into the wall surface decoration layer 70 and abuts against the surface of the core tube 10.

Specifically, the waterproof protective layer 60 is continuously laid on the surface of the water retaining sill 30 and the surface of the floor slab 20, a part of the waterproof protective layer 60 penetrates through the wall surface decorative layer 70 and contacts with the surface of the core cylinder 10, the waterproof protective layer 60 can prevent water from leaking into the joint between the core cylinder 10 and the water retaining sill 30 from the joint between the core cylinder 10 and the wall surface decorative layer 70, the joint between the core cylinder 10 and the water retaining sill 30 can also be prevented from leaking, and the waterproof protective layer can be matched with the water dripping strip 80, and the water dripping strip 80 can guide the water leaking from the joint between the core cylinder 10 and the wall surface decorative layer 70 to drip onto the waterproof protective layer 60.

Optionally, the waterproof protective layer 60 is provided with the anti-threshold 90 at a position corresponding to the floor slab 20, and the arrangement of the anti-threshold 90 can increase the drainage effect, that is, the moisture can flow in the region between the anti-threshold 90 and the water blocking threshold 30, and does not leak to the side of the anti-threshold 90 away from the water blocking threshold 30, and the moisture is conveniently drained.

Referring to fig. 2, optionally, a predetermined angle θ is formed between a surface of the waterproof protective layer 60 opposite to the top surface of the water retaining sill 30 and the top surface of the water retaining sill 30, and satisfies the relationship: theta is more than or equal to 5 degrees and less than or equal to 20 degrees.

For example, the preset angle θ may be set to 5 °, 6 °, 8 °, 10 °, 15 °, 20 °, and the like. Along with the increase of the preset angle θ, the greater the inclination of the surface of the waterproof protective layer 60 opposite to the top surface of the water blocking sill 30 is, the better the anti-leakage effect of the waterproof protective layer 60 is, and the moisture dropped by the water dropping strip 80 can flow toward the floor slab 20 along the waterproof protective layer 60.

In practical engineering projects, the preset angle θ may preferably be 10 ° to achieve the anti-leakage effect and the aesthetic property of the waterproof protective layer 60.

Referring to fig. 3, in the above-mentioned embodiment of the wall decoration layer 70 of the present application, optionally, the drip strip 80 includes a top plate 81, a bottom plate 83 and a riser 82, the top plate 81 is disposed through the wall decoration layer 70 and abuts against the surface of the core tube 10, the bottom plate 83 is connected to the wall decoration layer 70, the riser 82 is connected between the top plate 81 and the bottom plate 83, and the riser 82 is parallel to the center line 12 of the core tube.

Specifically, the drip strip 80 includes a top plate 81, a bottom plate 83 and a riser 82, the top plate 81 passes through the wall surface decoration layer 70 and abuts on the surface of the core tube 10 to ensure that moisture does not leak along the seam between the core tube 10 and the wall surface decoration layer 70, the bottom plate 83 is connected with the wall surface decoration layer 70, the riser 82 is connected between the top plate 81 and the bottom plate 83, and the riser 82 is parallel to the center line 12 of the core tube.

Optionally, the top plate 81 and the vertical plate 82 are fixed to the core tube 10 and the wall surface decoration layer 70 through cement nails, and a sealant 55 is disposed between one side of the top plate 81 away from the bottom plate 83 and the wall surface decoration layer 70 and between the bottom plate 83 and the wall surface decoration layer 70 to ensure the sealing performance of the connection position.

With continued reference to fig. 3, in the embodiment of the present application of the above-mentioned drip strip 80, optionally, the top plate 81 and the vertical plate 82 form a predetermined angle β, which satisfies the relation: beta is more than 90 degrees and less than or equal to 110 degrees, and correspondingly, the preset angle lambda =180 degrees beta is formed between the bottom plate 83 and the vertical plate 82.

For example, the preset angle β may be set to 91 °, 92 °, 95 °, 100 °, 110 °, and the larger the preset angle β is, the larger the inclination degree of the top plate 81 with respect to the wall decoration layer 70 is, and the better the anti-seepage effect is.

In practical engineering projects, the preset angle β may be preferably 100 °, and the corresponding preset angle λ is 80 °, which is a preferred value obtained in practical application processes.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A cast structure construction joint node, comprising:

a core barrel;

the floor slab is fixedly arranged along the circumferential direction of the core barrel, a water retaining ridge is integrally formed at the position, close to the core barrel, of the floor slab, and the water retaining ridge is fixedly arranged along the circumferential direction of the core barrel;

the annular groove is formed in the connecting position of the core barrel and the floor along the circumferential direction of the core barrel, an expansion water stop strip is arranged in the annular groove in a winding mode, and the expansion water stop strip deviates from one side of the annular groove and abuts against the floor.

2. The cast structure construction joint node of claim 1, wherein a first arc-shaped reinforcing part is arranged between the water retaining bank and the core barrel, and the first arc-shaped reinforcing part is arranged along the circumferential direction of the core barrel; and/or

The water retaining bank with be provided with second arc rib between the floor, second arc rib follows the circumference setting of water retaining bank.

3. The cast structure construction joint node of claim 1, further comprising a first waterproof layer, wherein the portion of the core barrel away from the water retaining sill is an exposed portion, and the first waterproof layer is continuously laid on the surfaces of the exposed portion of the core barrel, the water retaining sill and the floor slab.

4. The cast structure construction joint node of claim 3, wherein a second waterproof layer is laid on the surface of the first waterproof layer.

5. The construction joint of a casting structure according to claim 4, wherein the first waterproof layer is a polyurethane flexible waterproof layer, and the second waterproof layer is a self-adhesive modified asphalt waterproof roll layer.

6. The cast structure construction joint node as claimed in any one of claims 1 to 5, further comprising a wall surface decoration layer disposed along the circumferential direction of the core barrel, wherein the wall surface decoration layer is provided with a water dripping strip disposed at a position close to the water retaining ridge, and the water dripping strip is disposed along the circumferential direction of the core barrel.

7. The cast structure construction joint node of claim 6, further comprising a waterproof protective layer, wherein the waterproof protective layer is continuously laid on the surface of the water retaining ridge and the surface of the floor slab, and a part of the waterproof protective layer penetrates through the wall surface decoration layer and abuts against the surface of the core barrel.

8. The cast structure construction joint node of claim 7, wherein a predetermined angle θ is formed between a surface of the waterproof protective layer opposite to the top surface of the splash sill and the top surface of the splash sill, and satisfies the relationship: theta is more than or equal to 5 degrees and less than or equal to 20 degrees.

9. The cast structure construction joint node of claim 6, wherein the drip strip comprises a top plate, a bottom plate and a vertical plate, the top plate is arranged through the wall surface decoration layer and abuts against the surface of the core tube, the bottom plate is connected with the wall surface decoration layer, the vertical plate is connected between the top plate and the bottom plate, and the vertical plate is parallel to the central line of the core tube.

10. The cast structure construction joint node of claim 9, wherein the top plate and the riser form a predetermined angle β that satisfies the relationship: beta is more than 90 degrees and less than or equal to 110 degrees.

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