Waterproof construction method for joint of prefabricated component and cast-in-place component of fabricated building

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a waterproof construction method for the joint of a prefabricated component and a cast-in-place component of a fabricated building. The connecting materials are poured into the first pouring through grooves located in the two sides of the second pouring through groove, so that the two prefabricated structural parts can be well connected, and connection is stable; due to the fact that the second pouring through groove is located in the middle of the prefabricated structural part and is parallel to the wall face, the whole second pouring through groove is filled with the waterproof material by injecting the waterproof material into the second pouring through groove, and therefore each prefabricated structural part has the very good waterproof performance; the conditions of water seepage and water leakage caused by cracks of the prefabricated structural member can be effectively prevented, the using effect is good, and construction is convenient. Moreover, the corner waterproof material is arranged in the middle of the prefabricated structural member, so that the waterproof material can be well protected, and the waterproof effect in the whole building life cycle can be basically achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a waterproof construction method for the joint between precast components and cast-in-place components of an assembled building. Background Art

[0002] As a modern building method, assembled buildings have many remarkable advantages, which are not only reflected in construction efficiency and cost control, but also related to environmental protection, building quality, and flexibility. The following is a detailed elaboration of the advantages of assembled buildings: 1) Fast construction speed: The main components of assembled buildings are prefabricated in the factory, and only assembly is required on site, greatly shortening the construction period. This is conducive to quickly responding to market demands and reducing financial pressure and time costs caused by a long construction period. 2) Effective cost control: Factory production can achieve standardization and scale, effectively reducing material waste and labor costs. At the same time, due to the shortening of the construction time, indirect costs such as on-site management and equipment leasing are also reduced. 3) High quality control: Prefabricated components are produced in the factory with a stable environment, which is conducive to implementing strict quality control standards. Compared with traditional on-site casting, the component sizes of assembled buildings are more accurate, reducing human errors in on-site construction and improving the overall building quality stability. 4) Environmental protection and energy conservation: More environmentally friendly materials and technologies can be used in the production process of assembled buildings to reduce the generation of construction waste. At the same time, due to the standardization and recyclability of components, assembled buildings can also achieve a high resource utilization rate during demolition or renovation, meeting the concept of sustainable development.

[0003] At present, waterproof measures for the connection nodes (including walls, horizontal components, etc.) of assembled buildings generally adopt the self-waterproofing of the structure itself, brushing waterproof coatings, etc. For the method of self-waterproofing through the structure of precast components, however, cracks may exist in the precast components themselves, and during the use of the building, water leakage and seepage often easily occur at the joints formed by stacking precast parts. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above problems existing in the traditional technology and provide a waterproof construction method for the joint between precast components and cast-in-place components of an assembled building.

[0005] To achieve the above technical purpose and reach the above technical effect, the present invention is realized through the following technical solutions: The present invention provides a waterproof construction method for the joint between precast components and cast-in-place components of an assembled building, including the following steps: S1. Provide a number of precast structural components. The precast structural components have an upper connection surface and a lower connection surface, and a first pouring through groove and a second pouring through groove are provided between the upper connection surface and the lower connection surface. The first pouring through groove is symmetrically arranged on both sides of the second pouring through groove; S2. First, inject waterproof material into the second pouring channel of the precast structural member so that the waterproof material fills the second pouring channel. S3. Then, place the lower connecting surface of one precast structural member in step S2 on the upper connecting surface of another precast structural member and align the upper and lower precast structural members vertically. S4. Inject connecting material into the first pouring channel of the precast structural member located above in step S3 so that the connecting material enters the first pouring channel located below from the first pouring channel above until the first pouring channels of the upper and lower precast structural members are filled. S5. Repeat step S3 and step S4 to gradually complete the stacking construction of the precast members to form a wall surface. The first pouring channel and the second pouring channel are flat, and the first pouring channel and the second pouring channel are arranged parallel to the wall surface.

[0006] Further, step S3 also includes inserting steel bars into the first pouring channel between the two precast structural members so that both ends of the steel bars are located in the upper and lower first pouring channels respectively.

[0007] Further, the length of the steel bar is 1.6 - 2 times the height of the precast structural member.

[0008] Further, the upper connecting surface of the precast structural member includes first waterproof inclined surfaces symmetrically arranged on both sides and a first docking surface located between the two first waterproof inclined surfaces. The higher end of the first waterproof inclined surface is connected to the first docking surface to form a side surface inclined downward toward the side of the precast structural member. The lower connecting surface is provided with a second waterproof inclined surface parallel to the first waterproof inclined surface.

[0009] Further, the inclination angles of the first waterproof inclined surface and the second waterproof inclined surface are 20 - 60 degrees.

[0010] Further, the first docking surface is in a groove shape and has a groove space.

[0011] Further, the first docking surface is in a flat shape.

[0012] Further, the lower connecting surface is provided with a second docking surface between the two second waterproof inclined surfaces, and the second docking surface is in a flat shape.

[0013] Further, the length of the first waterproof inclined surface is 1 / 3 - 1 / 2 of the length of the first docking surface.

[0014] Further, the thickness of each of the first pouring channel and the second pouring channel is 1 / 6 - 1 / 4 of the thickness of the precast structural member.

[0015] The beneficial effects of the present invention are: In the present invention, by pouring a connecting material into the first pouring through-grooves located on both sides of the second pouring through-groove, two precast structural members can be well connected with firm connection. Since the second pouring through-groove is located in the middle of the precast structural member and is arranged parallel to the wall surface, by injecting a waterproof material into the second pouring through-groove to fill the entire second pouring through-groove, each precast structural member thus has very good waterproof performance, which can effectively prevent the occurrence of water seepage and leakage caused by cracks in the precast structural member itself, with good use effect and convenient construction. Moreover, by arranging the corner waterproof material in the middle of the precast structural member, the connecting materials on both sides and the precast structural member itself can well protect the waterproof material, which has a long waterproof life and can basically exert the waterproof effect throughout the building life cycle, reducing the annoyance of users.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a flowchart of the waterproof construction method for the joint between the precast member and the cast-in-place member of the prefabricated building of the present invention; Figure 2 It is a schematic structural diagram of the precast structural member in the present invention; Figure 3 It is a schematic structural diagram of the precast structural member in the present invention; Figure 4 It is a schematic sectional view of the precast structural member in the present invention; Figure 5 It is a schematic stacked structural diagram of the precast structural members in the present invention; Figure 6 It is a schematic stacked structural diagram of the precast structural members in the present invention; In the drawings, the reference numerals of each component are as follows: 10 - precast structural member, 11 - first pouring through-groove, 12 - second pouring through-groove, 13 - upper connection surface, 131 - first waterproof inclined surface, 132 - first docking surface, 14 - lower connection surface, 141 - second waterproof inclined surface, 142 - second docking surface, 15 - groove space, 20 - connecting material, 30 - waterproof material, 40 - steel bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] As Figures 1 to 6 shown, this embodiment provides a waterproof construction method at the joint between precast components and cast-in-place components of a prefabricated building. The construction steps include: S1. Provide a plurality of precast structural members 10. The precast structural member 10 has an upper connection surface 13 and a lower connection surface 14. A first pouring through groove 11 and a second pouring through groove 12 are provided between the upper connection surface 13 and the lower connection surface 14. The first pouring through groove 11 is symmetrically arranged on both sides of the second pouring through groove 12; S2. First, inject a waterproof material 30 into the second pouring through groove 12 of the precast structural member 10 so that the waterproof material 30 fills the second pouring through groove 12; S3. Then place the lower connection surface 14 of one of the precast structural members 10 in step S2 on the upper connection surface 13 of another precast structural member 10 and align the upper and lower precast structural members 10 vertically; S4. Inject a connection material 20 into the first pouring through groove 11 of the precast structural member 10 located above in step S3 so that the connection material 20 enters the first pouring through groove 11 located below from the first pouring through groove 11 above until the first pouring through grooves 11 of the upper and lower precast structural members 10 are filled; S5: Repeat steps S3 - S4 to gradually complete the stacking construction of the precast components to form a wall surface. The first pouring through groove 11 and the second pouring through groove 12 are flat, and the first pouring through groove 11 and the second pouring through groove 12 are arranged parallel to the wall surface.

[0021] By pouring the connecting material 20 into the first pouring channels 11 on both sides of the second pouring channel 12, the two prefabricated structural members 10 can be well connected, and the connection is firm. Since the second pouring channel 12 is located in the middle of the prefabricated structural member 10 and the second pouring channel 12 is arranged parallel to the wall surface, by injecting the waterproof material 30 into the second pouring channel 12 to fill the entire second pouring channel 12, each prefabricated structural member 10 thus has very good waterproof performance, which can effectively prevent the occurrence of water seepage and leakage caused by its own cracks in the prefabricated structural member 10, with good use effect and convenient construction. Moreover, by arranging the corner waterproof material 30 in the middle of the prefabricated structural member 10, the connecting material 20 on both sides and the prefabricated structural member 10 itself can well protect the waterproof material 30, with a long waterproof life, and basically can play the waterproof effect throughout the building life cycle, reducing the user's annoyance in use.

[0022] The connecting material 20 and the waterproof material 30 are existing conventional materials and will not be specifically described here.

[0023] In one embodiment, as Figure 4 shown, in S3, it further includes inserting the steel bar 40 into the first pouring channel 11 between the two prefabricated structural members 10, so that both ends of the steel bar 40 are respectively located in the upper and lower first pouring channels 11. In this way, by using the connecting function of the steel bar 40, the overall connection performance of the connecting material 20 located in the first pouring channel 11 can be stronger, ensuring the firm connection between the adjacent upper and lower prefabricated structural members 10 and a long service life.

[0024] In one embodiment, the length of the steel bar 40 is between 1.6 times and 2 times the height of the prefabricated structural member 10. In this way, it can ensure that the steel bar 40 is inserted between the adjacent upper and lower prefabricated structural members 10, and moreover, ensure that there is a sufficient length of the steel bar 40 at the position of each prefabricated structural member 10 to ensure its connection strength and make the overall wall surface firm.

[0025] In one embodiment, as Figures 2 to 6As shown, the upper connecting surface 13 of the prefabricated structural member 10 includes first waterproof inclined surfaces 131 symmetrically arranged on both sides and a first docking surface 132 located between the two first waterproof inclined surfaces 131. The higher end of the first waterproof inclined surface 131 is connected to the first docking surface 132 to form a side surface that slopes downward toward the side surface of the prefabricated structural member 10. The lower connecting surface 14 is provided with a second waterproof inclined surface 141 parallel to the first waterproof inclined surface 131. By providing the second waterproof inclined surface 141 parallel to the first waterproof inclined surface 131 near the outer sides of the upper and lower connecting surfaces of the prefabricated structural member 10, when two prefabricated structural members 10 are stacked and connected vertically, not only can the fitting between the first waterproof inclined surface 131 and the second waterproof inclined surface 141 be utilized to achieve a good positioning effect, so that the upper and lower two prefabricated structural members 10 are aligned to ensure the flatness of the wall surface; but also the drainage function between the first waterproof inclined surface 131 and the second waterproof inclined surface 141 can be utilized to effectively prevent rainwater from flowing into the wall, achieving a waterproof effect.

[0026] In one embodiment, the inclination angles of the first waterproof inclined surface 131 and the second waterproof inclined surface 141 are 20° - 60°. The inclination angles of the first waterproof inclined surface 131 and the second waterproof inclined surface 141 can also be 30° - 50°, 35° - 50°, 20° - 50°, 40° - 60°, etc. No specific limitation is made here, and any inclination angle within 20° - 60° can be arbitrarily selected. By setting the inclination angles of the first waterproof inclined surface 131 and the second waterproof inclined surface 141 to be 20° - 60°, not only can the upper and lower two prefabricated structural members 10 be well aligned, improving the stacking efficiency, accelerating the construction progress, and saving construction costs, but also the waterproof effect is good, basically preventing rainwater from seeping into the wall surface, and the use effect is good.

[0027] In one embodiment, as Figures 2 to 5 shown, the first docking surface 132 is in a groove shape, and the lower connecting surface 14 is provided with a second docking surface 142 between the two second waterproof inclined surfaces 141. The second docking surface 142 is in a flat shape, so that there is a groove space 15 between the first docking surface 132 and the second docking surface 142. When the first docking surface 132 is in a groove shape and the second docking surface 142 is in a flat shape, when the connecting material 20 is injected into the upper first pouring through groove 11, before the connecting material 20 enters the lower first connecting through groove, it will fill the groove space 15 between the first docking surface 132 and the second docking surface 142, as well as the lower first connecting through groove. In this way, the connecting material 20 in the groove space 15 can effectively expand the connection area between the upper and lower two prefabricated structural members 10, making the connection effect between the two better, effectively improving the connection strength, and ensuring the stability of the wall surface.

[0028] In one embodiment, as Figure 6As shown, the first docking surface 132 is planar, and the second docking surface 142 is planar, such that the first docking surface 132 and the second docking surface 142 are parallel and aligned, which can also well ensure the stable connection between the upper and lower precast structural members 10.

[0029] In one embodiment, the length of the first waterproof inclined surface 131 is 1 / 3 to 1 / 2 of the length of the first docking surface 132, which can ensure that the first waterproof inclined surface 131 plays a good alignment guiding role and a waterproofing role.

[0030] In one embodiment, the thickness of each of the first pouring through groove 11 and the second pouring through groove 12 is 1 / 6 to 1 / 4 of the thickness of the precast structural member 10. In this way, the first pouring through groove 11 can well provide a suitable space to inject a suitable volume of the connecting material 20 to ensure the connection effect. The second pouring through groove 12 can well provide a suitable space to inject a suitable volume of the waterproof material 30 to ensure the waterproof effect. Of course, after the construction of the connecting material 20 of the cast-in-place structure is completed, a waterproof rubber strip can be pasted at the joint between the upper and lower precast structural members 10 to further achieve the waterproof effect, and to solve problems such as wall seepage and water leakage to the greatest extent, giving users a safe and comfortable use environment.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A waterproof construction method for the joint between prefabricated components and cast-in-place components of an assembled building, characterized in that: The following steps are involved: S1. Provide a plurality of prefabricated structural members, each of which has an upper connecting surface and a lower connecting surface, a first casting groove and a second casting groove are arranged between the upper connecting surface and the lower connecting surface, and the first casting groove is symmetrically arranged on both sides of the second casting groove; S2, first injecting waterproof material into the second casting groove of the prefabricated structural member, so that the waterproof material fills the second casting groove; S3, then placing the lower connecting surface of one prefabricated structural member in step S2 on the upper connecting surface of another prefabricated structural member, and aligning the upper and lower prefabricated structural members vertically; S4, injecting the connecting material into the first casting groove of the upper prefabricated structural member in step S3, so that the connecting material enters the first casting groove at the lower position from the upper first casting groove until the first casting grooves of the upper and lower prefabricated structural members are completely filled; S5, repeating steps S3 and S4, gradually completing the stacking construction of prefabricated components to form a wall surface, wherein the first casting groove and the second casting groove are flat, and the first casting groove and the second casting groove are arranged parallel to the wall surface.

2. The waterproof construction method for the joint between the prefabricated components and cast-in-place components of an assembled building according to claim 1, characterized in that: Step S3 also includes inserting a steel bar into the first casting groove between the two prefabricated structural members, so that two ends of the steel bar are respectively located in the upper and lower first casting grooves.

3. The waterproof construction method for the joint between the prefabricated components and the cast-in-place components of an assembled building according to claim 2, characterized in that: The length of the steel bar is 1.6 to 2 times the height of the prefabricated structural member.

4. The waterproof construction method for the joint between the prefabricated components and cast-in-place components of an assembled building according to claim 1, characterized in that: The upper connecting surface of the prefabricated structural member includes first waterproof inclined surfaces symmetrically arranged on both sides and a first docking surface located between the two first waterproof inclined surfaces. The higher end of the first waterproof inclined surface is connected to the first docking surface to form a side surface inclined downward toward the side of the prefabricated structural member. The lower connecting surface is provided with a second waterproof inclined surface parallel to the first waterproof inclined surface.

5. The waterproof construction method for the joint between the prefabricated components and the cast-in-place components of an assembled building according to claim 4, characterized in that: The inclination angles of the first waterproof slope and the second waterproof slope are 20 to 60 degrees.

6. The waterproof construction method for the joint between the prefabricated components and cast-in-place components of an assembled building according to claim 4, characterized in that: The first docking surface is in a groove shape and has a groove space.

7. The waterproof construction method for the joint between the prefabricated components and the cast-in-place components of an assembled building according to claim 4, characterized in that: The first butting surface is planar.

8. The waterproof construction method for the joint between the prefabricated components and the cast-in-place components of an assembled building according to claim 4, characterized in that: The lower connecting surface is provided with a second butt joint surface between the two second waterproof inclined surfaces, and the second butt joint surface is planar.

9. The waterproof construction method for the joint between the prefabricated components and the cast-in-place components of an assembled building according to claim 8, characterized in that: The length of the first waterproof slope is 1 / 3 to 1 / 2 of the length of the first docking surface.

10. The waterproof construction method for the joint between the prefabricated components and cast-in-place components of an assembled building according to claim 1, characterized in that: The thickness of each of the first casting groove and the second casting groove is 1 / 6 to 1 / 4 of the thickness of the prefabricated structural member.

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