CN113719044A - Connecting joint of prefabricated staircase and construction method thereof - Google Patents
Connecting joint of prefabricated staircase and construction method thereof Download PDFInfo
- Publication number
- CN113719044A CN113719044A CN202111024392.1A CN202111024392A CN113719044A CN 113719044 A CN113719044 A CN 113719044A CN 202111024392 A CN202111024392 A CN 202111024392A CN 113719044 A CN113719044 A CN 113719044A
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- waterproof
- prefabricated staircase
- groove
- tongue
- bonding layer
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
Abstract
The invention discloses a prefabricated staircase connecting node and a construction method thereof, wherein the prefabricated staircase connecting node comprises a waterproof structure, a first prefabricated staircase and a second prefabricated staircase, a first waterproof tongue-and-groove is formed in the butt joint end surface of the first prefabricated staircase and the second prefabricated staircase, a second waterproof tongue-and-groove is formed in the butt joint end surface of the second prefabricated staircase and the first prefabricated staircase, the first waterproof tongue-and-groove is matched with the second waterproof tongue-and-groove, and the waterproof structure is arranged between the first waterproof tongue-and-groove and the second waterproof tongue-and-groove and connects the first prefabricated staircase and the second prefabricated staircase together. Waterproof construction sets up in the terminal surface of the butt joint of first prefabricated stair and second prefabricated stair to prevent that the problem of leaking from appearing in first prefabricated stair and second prefabricated stair butt joint department.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to a connecting node of a prefabricated staircase and a construction method thereof.
Background
With the development of the assembly building industry, the prefabricated staircase is one of the most mature parts in the assembly building. Because prefabricated staircase weight is too big, surpasss the weight of lifting by crane that the construction site tower crane allowed, so prefabricated staircase designs into two or polylith to put together two or polylith prefabricated staircase closely, with the self weight that alleviates single prefabricated staircase, satisfy the jack-up that the tower crane allowed. However, when the prefabricated staircase is used, the water leakage problem is easy to occur at the close splicing position between two or more prefabricated staircases, and the use quality of the prefabricated staircase is influenced.
Disclosure of Invention
Based on this, it is necessary to provide a connection node of a prefabricated staircase and a construction method thereof, so as to solve the technical problem that water leakage is easy to occur at the butt joint between two or more prefabricated staircases in the prior art.
The invention provides a prefabricated staircase connecting node which comprises a waterproof structure, a first prefabricated staircase and a second prefabricated staircase, wherein a first waterproof tongue-and-groove is formed in the butt joint end face of the first prefabricated staircase and the second prefabricated staircase, a second waterproof tongue-and-groove is formed in the butt joint end face of the second prefabricated staircase and the first prefabricated staircase, the first waterproof tongue-and-groove is matched with the second waterproof tongue-and-groove, the waterproof structure is arranged between the first waterproof tongue-and-groove and the second waterproof tongue-and-groove, and the first prefabricated staircase and the second prefabricated staircase are connected together.
Furthermore, the waterproof structure comprises a first waterproof bonding layer, a second waterproof bonding layer and a waterproof sealing strip, the first waterproof bonding layer is arranged on the first waterproof rabbet, the second waterproof bonding layer is arranged on the second waterproof rabbet, and the waterproof sealing strip is arranged between the first waterproof bonding layer and the second waterproof bonding layer; or
The first waterproof bonding layer is arranged on the second waterproof rabbet, the second waterproof bonding layer is arranged on the first waterproof rabbet, and the waterproof sealing strip is arranged between the first waterproof bonding layer and the second waterproof bonding layer.
Further, the first waterproof rabbet and the second waterproof rabbet are in curved shapes.
Further, the first waterproof groove and the second waterproof groove are in an S shape.
Further, the first waterproof groove and tongue is provided with a first concave surface and a first convex surface, the second waterproof groove and tongue is provided with a second concave surface and a second convex surface, the first waterproof bonding layer is arranged at the first concave surface of the first waterproof groove and the second convex surface of the second waterproof groove and tongue, and the second waterproof bonding layer is arranged at the second convex surface of the second waterproof groove and tongue of the first concave surface of the first waterproof groove and tongue.
Further, the waterproof structure further comprises a first waterproof sealing layer, and the first waterproof sealing layer is arranged on the tops of the butt end faces of the first waterproof rabbet and the second waterproof rabbet; and/or
The waterproof structure further comprises a second waterproof sealing layer, and the second waterproof sealing layer is arranged at the bottom of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet.
Further, the thickness of the first waterproof sealing layer and the thickness of the second waterproof sealing layer are greater than 15 mm.
Further, the waterproof sealing strip is of an elastic structure.
Further, the thickness of the waterproof structure is 10 mm to 20 mm.
In another embodiment, the present invention is to provide a construction method of a prefabricated staircase, including:
arranging a first waterproof bonding layer on a first waterproof rabbet of the first prefabricated staircase, arranging a second waterproof bonding layer on a second waterproof rabbet of the second prefabricated staircase, and connecting a waterproof sealing strip with the first waterproof bonding layer;
hoisting the first prefabricated staircase at a preset distance from the left side of a first design position, and hoisting the second prefabricated staircase at a preset distance from the right side of a second design position;
translating the first prefabricated staircase to the right for a preset distance so that the first prefabricated staircase is located at a first design position;
translating the second prefabricated staircase leftwards for a preset distance so that the second prefabricated staircase is positioned at a second design position, and extruding the waterproof sealing strip by the first waterproof bonding layer and the second waterproof bonding layer;
filling a first waterproof sealing layer on the top of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet;
and filling a second waterproof sealing layer at the bottom of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet.
The invention provides a connection node of a prefabricated staircase, wherein a first waterproof tongue-and-groove is arranged on the butt joint end surface of a first prefabricated staircase and a second prefabricated staircase, a second waterproof tongue-and-groove is arranged on the butt joint end surface of the second prefabricated staircase and the first prefabricated staircase, the first waterproof tongue-and-groove is matched with the second waterproof tongue-and-groove, and a waterproof structure is arranged between the first waterproof tongue-and-groove and the second waterproof tongue-and-groove. Therefore, waterproof construction sets up in the terminal surface of the butt joint of first prefabricated stair and second prefabricated stair to prevent that the problem that leaks from appearing in first prefabricated stair and second prefabricated stair butt joint department.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a connection node of a prefabricated staircase according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another angle of a connection node of a prefabricated staircase according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the first prefabricated staircase and the second prefabricated staircase after being butted according to the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a first prefabricated staircase and a second prefabricated staircase before being butted according to an embodiment of the invention;
fig. 5 is a flowchart of a construction method of a prefabricated staircase in the embodiment of the present invention.
The main components are as follows:
100. a waterproof structure; 110. a first waterproof adhesive layer; 120. a second waterproof adhesive layer; 130. a waterproof sealing strip; 140. a first waterproof sealing layer; 150. a second waterproof sealing layer; 200. a first prefabricated staircase; 210. a first waterproof tongue-and-groove; 300. a second prefabricated staircase; 310. and a second waterproof tongue-and-groove.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 and 2, in some embodiments, a connection node of a prefabricated staircase includes a waterproof structure 100, a first prefabricated staircase 200 and a second prefabricated staircase 300, wherein a first waterproof tongue-and-groove 210 is provided at an end surface of the first prefabricated staircase 200, which is in butt joint with the second prefabricated staircase 300, a second waterproof tongue-and-groove 310 is provided at an end surface of the second prefabricated staircase 300, which is in butt joint with the first prefabricated staircase 200, the first waterproof tongue-and-groove 210 and the second waterproof tongue-and-groove 310 are in fit, and the waterproof structure 100 is disposed between the first waterproof tongue-and-groove 210 and the second waterproof tongue-and-groove 310 and connects the first prefabricated staircase 200 and the second prefabricated staircase 300 together. Waterproof construction 100 sets up in the terminal surface of the butt joint of first prefabricated stair 200 and second prefabricated stair 300 to prevent that the problem that leaks from appearing in first prefabricated stair 200 and second prefabricated stair 300 butt joint department, reduce the maintenance of leaking in later stage, reduce the maintenance cost, reduce the waste of resource.
Specifically, the thickness of the waterproof structure 100 is 10 to 20 mm. Preferably, the waterproof structure 100 may have a thickness of 15 mm.
In some embodiments, the first waterproof bezel 210 and the second waterproof bezel 310 are curved to prevent water leakage from penetrating downward in a vertical direction. Compared with the first waterproof groove 210 and the second waterproof groove 310 which are in straight line shapes, the first waterproof groove 210 and the second waterproof groove 310 which are in curved shapes have better water leakage prevention effect. If the first waterproof groove 210 and the second waterproof groove 310 are straight lines, water leakage may penetrate downward in a vertical direction. When the first waterproof groove 210 and the second waterproof groove 310 are curved, water leakage may penetrate into the first prefabricated staircase 200 or the second prefabricated staircase 300. For example, the first prefabricated staircase 200 and the second prefabricated staircase 300 are made of concrete, and water leakage penetrates into the concrete without penetrating all the way down in the vertical direction.
Specifically, the first waterproof groove 210 and the second waterproof groove 310 may have a wave shape. More specifically, the first waterproof bezel 210 and the second waterproof bezel 310 are "S" shaped.
Further, as shown in fig. 3 and 4, the waterproof structure 100 includes a first waterproof adhesive layer 110, a second waterproof adhesive layer 120, and a waterproof sealing strip 130, the first waterproof adhesive layer 110 is disposed on the first waterproof bezel 210, the second waterproof adhesive layer 120 is disposed on the second waterproof bezel 310, and the waterproof sealing strip 130 is disposed between the first waterproof adhesive layer 110 and the second waterproof adhesive layer 120. Further, the first waterproof adhesive layer 110 is provided on the second waterproof groove 310, the second waterproof adhesive layer 120 is provided on the first waterproof groove 210, and the waterproof sealing tape 130 is provided between the first waterproof adhesive layer 110 and the second waterproof adhesive layer 120.
Specifically, the first waterproof adhesive layer 110 may be a waterproof adhesive coated on the first waterproof groove 210. The waterproof binder can be a second-order reaction type waterproof binder, a reaction type bridge deck waterproof binder or a polypropylene fiber waterproof binder and the like.
More specifically, the second waterproof adhesive layer 120 may be an epoxy resin or a permeated epoxy resin. In practical application, first prefabricated staircase 200 and second prefabricated staircase 300 are the concrete, and the surface of concrete is more crude, has more space, can influence waterproof sealing strip 130 to the sealed and water-proof effects of the butt joint terminal surface of first prefabricated staircase 200 and second prefabricated staircase 300, brush the surface at the concrete and apply paint infiltration epoxy, can eliminate the space on concrete surface for the concrete surface is smooth, in order to improve waterproof sealing strip 130 to the sealed and water-proof effects of the butt joint terminal surface of first prefabricated staircase 200 and second prefabricated staircase 300.
Further, the waterproof sealing tape 130 is of an elastic structure. First prefabricated staircase 200 and second prefabricated staircase 300 can take place vibrations in the use, and vibrations can make the position of the butt joint terminal surface of first prefabricated staircase 200 and second prefabricated staircase 300 change. For example, when the first prefabricated staircase 200 is under pressure and the second prefabricated staircase 300 is not under pressure, the first prefabricated staircase 200 may be slightly settled and the second prefabricated staircase 300 may not be correspondingly settled, so that the butt-joint end surfaces of the first prefabricated staircase 200 and the second prefabricated staircase 300 may be misaligned, or the distance between the first prefabricated staircase 200 and the second prefabricated staircase 300 may be changed due to external force. Waterproof sealing strip 130 is elastic structure, and the butt joint terminal surface of first prefabricated stair 200 and second prefabricated stair 300 takes place the dislocation or shakes, and waterproof sealing strip 130 can correspond and produce elastic deformation, ensures the sealed and water-proof effects of first prefabricated stair 200 and second prefabricated stair 300 butt joint terminal surface. Specifically, the waterproof sealing tape 130 is a rubber material.
Further, the first waterproof groove 210 has a first concave surface and a first convex surface, the second waterproof groove 310 has a second concave surface and a second convex surface, the first waterproof adhesive layer 110 is disposed at the first concave surface of the first waterproof groove 210 and the second convex surface of the second waterproof groove 310, and the second waterproof adhesive layer 120 is disposed at the second convex surface of the second waterproof groove 310 and the first convex surface of the first waterproof groove 210.
Specifically, when the first waterproof groove 210 and the second waterproof groove 310 are in an "S" shape, a layer of waterproof adhesive is coated on the first concave surface of the first waterproof groove 210, a layer of permeable epoxy resin is coated on the convex surface of the first waterproof groove 210, and then the waterproof sealing strip 130 is adhesively fixed on the concave surface of the first waterproof groove 210. A layer of waterproof adhesive is coated at the second concave surface of the second waterproof groove 310, a layer of permeable epoxy resin is coated at the second convex surface of the second waterproof groove 310, and then the waterproof sealing strip 130 is adhered and fixed at the second concave surface of the second waterproof groove 310.
In some embodiments, the connection node further comprises a first waterproof-sealing layer 140, the first waterproof-sealing layer 140 being disposed on top of the abutting end faces of the first waterproof bezel 210 and the second waterproof bezel 310. The connection node further includes a second waterproof sealing layer 150, and the second waterproof sealing layer 150 is disposed at the bottom of the butt end surfaces of the first waterproof bezel 210 and the second waterproof bezel 310. The first waterproof sealing layer 140 and the second sealing layer are arranged, so that the waterproof effect of the butt joint end faces of the first prefabricated staircase 200 and the second prefabricated staircase 300 is improved.
Specifically, the thickness of the first waterproof sealing layer 140 and the thickness of the second waterproof sealing layer 150 are greater than 15 mm. More specifically, both the first waterproof sealing layer 140 and the second waterproof sealing layer 150 may be waterproof sealants. Such as nano elastic waterproof glue, waterproof polyurethane sealant or silicone-acrylic waterproof sealant, etc.
In another embodiment, as shown in fig. 5, a method for constructing a prefabricated staircase includes the steps of:
s1: arranging the first waterproof bonding layer 110 on the first waterproof rabbet 210 of the first prefabricated staircase 200, arranging the second waterproof bonding layer 120 on the second waterproof rabbet 310 of the second prefabricated staircase 300, and connecting the waterproof sealing strip 130 with the first waterproof bonding layer 110;
s2: hoisting the first prefabricated staircase 200 at a preset distance from the left side of the first design position, and hoisting the second prefabricated staircase 300 at a preset distance from the right side of the second design position;
s3: translating the first prefabricated staircase 200 to the right for a preset distance so that the first prefabricated staircase 200 is located at a first design position;
s4: moving the second prefabricated staircase 300 to the left by a preset distance so that the second prefabricated staircase 300 is located at the second design position and the waterproof sealing strip 130 is extruded by the first waterproof bonding layer 110 and the second waterproof bonding layer 120;
s5: filling a first waterproof sealing layer 140 on top of the butt end surfaces of the first waterproof bezel 210 and the second waterproof bezel 310;
s6: the bottoms of the abutting end surfaces of the first waterproof groove 210 and the second waterproof groove 310 are filled with the second waterproof sealing layer 150.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The connection node of the prefabricated staircase is characterized by comprising a waterproof structure, a first prefabricated staircase and a second prefabricated staircase, wherein a first waterproof tongue-and-groove is formed in the butt joint end face of the first prefabricated staircase and the second prefabricated staircase, a second waterproof tongue-and-groove is formed in the butt joint end face of the second prefabricated staircase and the first prefabricated staircase, the first waterproof tongue-and-groove is matched with the second waterproof tongue-and-groove, the waterproof structure is arranged between the first waterproof tongue-and-groove and the second waterproof tongue-and-groove, and the first prefabricated staircase and the second prefabricated staircase are connected together.
2. The precast stair connection node according to claim 1, wherein the waterproof structure includes a first waterproof bonding layer, a second waterproof bonding layer, and a waterproof sealing strip, the first waterproof bonding layer is disposed on the first waterproof rabbet, the second waterproof bonding layer is disposed on the second waterproof rabbet, and the waterproof sealing strip is disposed between the first waterproof bonding layer and the second waterproof bonding layer; or
The first waterproof bonding layer is arranged on the second waterproof rabbet, the second waterproof bonding layer is arranged on the first waterproof rabbet, and the waterproof sealing strip is arranged between the first waterproof bonding layer and the second waterproof bonding layer.
3. The prefabricated staircase connection node as claimed in claim 2, wherein the first and second watertight rebates are both curvilinear in shape.
4. The prefabricated staircase connection node as claimed in claim 3, wherein the first and second watertight rebates are each "S" shaped.
5. The precast stair connection node according to claim 4, wherein the first waterproof tongue-and-groove has a first concave surface and a first convex surface, the second waterproof tongue-and-groove has a second concave surface and a second convex surface, the first waterproof adhesive layer is provided at the first concave surface of the first waterproof tongue-and-groove and the second convex surface of the second waterproof tongue-and-groove, and the second waterproof adhesive layer is provided at the second convex surface of the second waterproof tongue-and-groove and the first convex surface of the first waterproof tongue-and-groove.
6. The precast stair connection node of claim 2, wherein the waterproof structure further comprises a first waterproof sealing layer provided on top of the butted end surfaces of the first waterproof tongue and groove and the second waterproof tongue and groove; and/or
The waterproof structure further comprises a second waterproof sealing layer, and the second waterproof sealing layer is arranged at the bottom of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet.
7. The precast stair connection node of claim 8 wherein the thickness of the first and second water tight sealing layers are each greater than 15 millimeters.
8. The precast stair connection node of claim 2 wherein the weatherstrip is of resilient construction.
9. The prefabricated staircase connection node as claimed in claim 1, wherein the waterproof structure has a thickness of 10 mm to 20 mm.
10. A construction method of a prefabricated staircase is characterized by comprising the following steps:
arranging a first waterproof bonding layer on a first waterproof rabbet of the first prefabricated staircase, arranging a second waterproof bonding layer on a second waterproof rabbet of the second prefabricated staircase, and connecting a waterproof sealing strip with the first waterproof bonding layer;
hoisting the first prefabricated staircase at a preset distance from the left side of a first design position, and hoisting the second prefabricated staircase at a preset distance from the right side of a second design position;
translating the first prefabricated staircase to the right for a preset distance so that the first prefabricated staircase is located at a first design position;
translating the second prefabricated staircase leftwards for a preset distance so that the second prefabricated staircase is positioned at a second design position, and extruding the waterproof sealing strip by the first waterproof bonding layer and the second waterproof bonding layer;
filling a first waterproof sealing layer on the top of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet;
and filling a second waterproof sealing layer at the bottom of the butt joint end face of the first waterproof rabbet and the second waterproof rabbet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024392.1A CN113719044A (en) | 2021-09-02 | 2021-09-02 | Connecting joint of prefabricated staircase and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024392.1A CN113719044A (en) | 2021-09-02 | 2021-09-02 | Connecting joint of prefabricated staircase and construction method thereof |
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