Building outer wall drainage vertical pipe system and construction structure of plugging structure of building outer wall drainage vertical pipe system

Abstract

The utility model relates to a building outer wall drainage vertical pipe system which is located between bottom plates of two adjacent floors, and the vertex angle portion of each bottom plate extends outwards in the direction away from a reinforced concrete outer wall to form an outer bottom plate. The building outer wall drainage stand pipe system comprises a drainage stand pipe and an enclosure structure. Wherein the enclosure structure is formed by pouring concrete and is arranged between two adjacent outer bottom plates, one side of the enclosure structure is fixedly connected with the reinforced concrete outer wall, and an enclosure cavity is jointly defined by the enclosure structure and the reinforced concrete outer wall; the drainage stand pipe is installed in the enclosure cavity, and the upper end and the lower end of the drainage stand pipe penetrate through the corresponding outer bottom plates correspondingly. The utility model further relates to a construction structure of the plugging structure of the drainage vertical pipe system of the building outer wall, a concrete structure is adopted as an enclosure structure, the stability and rigidity of the drainage vertical pipe system are greatly enhanced, and the plugging structure belongs to the technical field of building construction.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a construction structure for a building exterior wall drainage riser system and its sealing structure. Background Technology

[0002] In the field of building engineering, drainage riser systems are an indispensable part of ensuring the normal operation of buildings. For a long time, the enclosure structure of traditional drainage riser systems has generally used masonry materials, which are widely used in ordinary buildings due to their simple construction process and relatively low cost.

[0003] With the rapid development of urban construction, the number of high-rise buildings has increased dramatically. In high-rise buildings, the shortcomings of traditional masonry enclosure structures have become increasingly apparent. First, masonry structures have poor overall integrity. As they are composed of individual masonry blocks, the connections between the blocks are prone to loosening under external forces, leading to insufficient overall structural stability. Second, masonry has limited rigidity. When faced with dynamic loads such as wind and earthquakes experienced by high-rise buildings, it is difficult to effectively resist deformation, easily resulting in cracks, which in turn affects the normal use of drainage risers. Furthermore, the heavy weight of masonry structures increases the burden on the building foundation, adversely affecting the structural safety of high-rise buildings. Additionally, during construction, masonry requires manual bricklaying, making it difficult to guarantee construction precision and easily leading to non-standard construction, further weakening the structural stability.

[0004] Even after construction is completed and put into use, masonry structures may develop cracks, loosening, or even falling off due to long-term exposure to various loads and environmental factors. This can seriously affect the normal operation of the drainage system and pose a threat to the safety of people and property inside the building. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a construction structure for a building exterior wall drainage riser system and its sealing structure. The enclosure structure adopts a concrete structure, which greatly enhances the stability and rigidity of the drainage riser system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An exterior wall drainage riser system is located between the base slabs of two adjacent floors. The top corner of the base slab extends outward and away from the reinforced concrete exterior wall to form an outer base slab. The exterior wall drainage riser system includes drainage risers and an enclosure structure. The enclosure structure is made of cast concrete and is located between two adjacent outer base slabs. One side of the enclosure structure is fixedly connected to the reinforced concrete exterior wall, and the enclosure structure and the reinforced concrete exterior wall together form an enclosure cavity. The drainage riser is installed in the enclosure cavity, and its upper and lower ends penetrate the corresponding outer base slabs.

[0008] As a preferred embodiment, the enclosure structure includes an initial enclosure structure and a sealing structure, which together form the enclosure structure, and the sealing structure is located on the rear side of the drainage riser.

[0009] As a preferred option, multiple vertical and multiple horizontal reinforcing bars are installed within the enclosure structure. The vertical and horizontal reinforcing bars are tied together at their intersections with steel wires, and the horizontal reinforcing bars within the sealing structure extend into the initial enclosure structure.

[0010] As a preferred option, a construction structure for sealing a drainage riser system on a building exterior wall includes an angle steel support frame, a template, back ribs, and tie rods for waterstopping. The angle steel support frame is installed on the initial enclosure structure within the enclosure cavity. A template is installed on the side of the angle steel support frame away from the enclosure cavity. Another template is installed on the outer side of the initial enclosure structure corresponding to the sealing structure. Vertical and horizontal reinforcing bars are installed between the two templates. A horizontal back rib is installed on the outer side of the other template. The tie rods pass horizontally through and lock the angle steel support frame and the back rib.

[0011] As a preferred embodiment, blind holes are opened on both sides of the initial enclosure structure facing the sealing structure. Chemical adhesive is placed in the blind holes, and the transverse anchors in the sealing structure are inserted into the blind holes. The transverse anchors corresponding to the two opposite blind holes are tied with steel wire at the overlapping splice.

[0012] As a preferred option, sealant is applied to the outside of the gap between the template and the initial enclosure structure.

[0013] As a preferred option, the template on the side of the angle steel support frame away from the enclosure cavity is a PVC building template, and the other template on the outside of the sealing structure is a plywood template.

[0014] As a preferred option, expansion bolts are installed on the initial enclosure structure, and the angle steel support frame is fixed to the expansion bolts by welding.

[0015] As a preferred option, a reserved passage is opened in the lower part of the sealing structure.

[0016] This utility model has the following advantages:

[0017] (1) By installing the drainage riser on the outer bottom plate and penetrating the outer bottom plate, the drainage riser can be directly connected to the external drainage system, which reduces the complexity of the drainage path, improves the drainage efficiency, and avoids the drainage problems or blockages that may occur in the traditional drainage system.

[0018] (2) The retaining structure is constructed by pouring concrete, which is simple and easy to operate, reducing the construction difficulty and construction period, while improving the construction quality; the retaining structure is made of concrete, which greatly enhances the stability and rigidity of the drainage riser system.

[0019] (3) The design of the enclosure effectively isolates the drainage riser from the internal structure of the building, reduces the damage to the interior of the building caused by leakage or seepage of the drainage pipe, and improves the waterproof performance of the building.

[0020] (4) The enclosure structure is divided into the initial enclosure structure and the sealing structure, which facilitates the initial enclosure before the drainage riser is installed. When the drainage riser is installed, the construction personnel can stand on the outer bottom plate and then seal it after installation, which improves the flexibility and efficiency of construction.

[0021] (5) The combination structure of angle steel support frame, template, back rib square strip and tie rod water stop is adopted, which simplifies the construction process of the sealing structure and improves the construction efficiency.

[0022] (6) By creating blind holes on the sides of the initial enclosure structure and injecting chemical adhesive, the transverse reinforcing bars are inserted into the blind holes to form a strong connection, enhancing the overall integrity and tensile strength of the structure. The blind hole design and the use of chemical adhesives simplify the connection process and reduce construction difficulty and time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a sectional view of a node in a building's exterior wall drainage riser system.

[0025] Figure 2 for Figure 1 A cross-sectional view of the nodes before the sealing structure is installed.

[0026] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure.

[0027] Figure 4 This is a schematic diagram of the construction structure of a building exterior wall drainage riser system and its sealing structure.

[0028] Figure 5 for Figure 4 AA sectional view.

[0029] Figure 6 In order to be in Figure 4 A view of the construction structure from inside the enclosure cavity towards the sealing structure.

[0030] The components include: 1. Drainage riser; 2. Enclosure structure; 3. Base slab; 4. Reinforced concrete exterior wall; 5. Temporary window; 6. Exterior base slab; 7. Enclosure cavity; 8. Initial enclosure structure; 9. Sealing structure; 10. Vertical rebar; 11. Horizontal rebar; 12. Stirrups; 13. Angle steel support frame; 14. Formwork; 15. Back rib square strip; 16. Tie rods for waterstop; 17. Expansion bolts; 18. Sealant; 19. First vertical angle steel; 20. Second vertical angle steel; 21. Horizontal angle steel. Detailed Implementation

[0031] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Example 1

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, the building includes a base slab of each floor and a reinforced concrete exterior wall between two adjacent base slabs. This utility model protects a building exterior wall drainage riser system located between the base slabs 3 of two adjacent floors. The top corner of the base slab 3 extends outward and away from the reinforced concrete exterior wall 4 to form an outer base slab 6.

[0034] The building exterior wall drainage riser system includes a drainage riser 1 and an enclosure structure 2; wherein, the enclosure structure 2 is made of concrete and is set between two adjacent outer base plates 6, one side of which is fixedly connected to the reinforced concrete exterior wall 4, and the enclosure structure 2 and the reinforced concrete exterior wall 4 together form an enclosure cavity 7; the drainage riser 1 is installed in the enclosure cavity 7, and the upper and lower ends of the drainage riser 1 respectively penetrate the corresponding outer base plates 6.

[0035] The enclosure structure 2, constructed of concrete, significantly enhances the stability and rigidity of the drainage riser 1 system. Concrete possesses high strength and rigidity, enabling it to withstand substantial loads, making it particularly suitable for the vertical and horizontal loads (such as wind loads and seismic forces) of high-rise buildings. The design of the drainage riser 1 system enhances the overall building stability, reducing the impact of vibrations or external forces on the building structure. The enclosure cavity 7 effectively isolates the drainage riser 1 from the internal building structure, minimizing damage to the building's interior caused by leaks or seepage from the drainage pipes and improving the building's waterproofing performance.

[0036] The enclosure structure 2 includes an initial enclosure structure 8 and a sealing structure 9, which together form the enclosure structure 2, and the sealing structure 9 is located on the rear side of the drainage riser 1.

[0037] The initial enclosure structure 8 facilitates preliminary protection before the installation of the drainage riser 1. When installing the drainage riser 1, construction workers can stand on the outer base plate 6. The initial enclosure structure 8 can reduce the risk of construction workers falling. After installation, the sealing structure 9 is installed, which improves the flexibility and efficiency of construction.

[0038] Multiple vertical reinforcing bars 10 and multiple horizontal reinforcing bars 11 are installed within the retaining structure 2. The vertical reinforcing bars 10 and horizontal reinforcing bars 11 are tied together with steel wire at their intersections. The multiple vertical reinforcing bars 10 can also be tied together with stirrups 12, which enhances the overall strength and tensile performance of the retaining structure 2 and reduces cracks or deformations caused by external forces. The horizontal reinforcing bars 11 within the sealing structure 9 extend into the initial retaining structure 8, ensuring the continuity and consistency of the structure and improving construction accuracy and quality.

[0039] Example 2

[0040] like Figure 4 , Figure 5 and Figure 6As shown, the difference from Embodiment 1 is that this embodiment protects the construction structure of the sealing structure of the drainage riser system of a building exterior wall. When the drainage riser 1 is installed, the sealing structure 9 has not yet been formed. The sealing structure 9 is a temporary window 5. After the drainage riser 1 is installed, the sealing structure 9 is constructed at the temporary window 5. The construction structure for the sealing structure 9 includes an angle steel support frame 13, a template 14, a back rib square strip 15, and a tie rod 16 for water-stopping. The angle steel support frame 13 in the enclosure cavity 7 is set on the initial enclosure structure 8. The angle steel support frame 13 is spliced ​​from multiple angle steels. In this embodiment, the angle steel support frame 13 includes two 200mm long first vertical angle steels 19, six 450mm long second vertical angle steels 20, and four 450mm long horizontal angle steels 21. Two first vertical angle steels 19 are located at the lower part of the angle steel support frame 13. The top of the first vertical angle steels 19 is spliced ​​with a horizontal angle steel 21, and then two second vertical angle steels 20 are spliced ​​side by side upwards, followed by another horizontal angle steel 21, and so on upwards. Expansion bolts 17 are driven into the side of the initial enclosure structure 8 facing the sealing structure 9, with the expansion bolts 17 extending into the sealing structure 9. The horizontal angle steels 21 are fixed to the expansion bolts 17 by welding, ensuring the stability of the angle steel support frame 13 and reducing possible displacement or deformation during construction. A template 14 is installed on the side of the angle steel support frame 13 away from the enclosure cavity 7. Another template 14 is installed on the outer side of the initial enclosure structure 8 corresponding to the sealing structure 9. Vertical reinforcing bars 10 and horizontal reinforcing bars 11 are placed between the two templates 14. Concrete is poured between the two templates 14. A horizontal backing strip 15 is installed on the outer side of the other template 14. Tie rods 16 pass horizontally through and lock the angle steel support frame 13 and the backing strip 15. The combined structure of the angle steel support frame 13, template 14, backing strip 15, and tie rods 16 simplifies the construction process of the sealing structure 9 and improves construction efficiency. The design of the tie rods 16 effectively prevents water from seeping from the gaps in the sealing structure 9, improving the overall waterproof performance. The coordinated use of the template 14 and the angle steel support frame 13 ensures the stability of the sealing structure 9 during construction and reduces structural deformation or damage caused by improper construction.

[0041] Blind holes are opened on both sides of the initial enclosure structure 8 facing the sealing structure 9. Chemical adhesive is applied inside the blind holes. The transverse reinforcing bars 11 inside the sealing structure 9 are inserted into the blind holes. The transverse reinforcing bars 11 corresponding to the two opposite blind holes are tied together with steel wire at the overlapping splice. The blind hole design and the use of chemical adhesive simplify the connection process, reduce construction difficulty and time, and enhance the integrity and tensile strength of the structure.

[0042] Sealant 18 is applied to the outside of the gap between template 14 and the initial enclosure structure 8. This effectively prevents water from seeping through the gap and improves the overall waterproof performance.

[0043] The formwork 14 on the side of the angle steel support frame 13 furthest from the enclosure cavity 7 is a PVC construction formwork, while the other formwork 14 on the outside of the sealing structure 9 is a plywood formwork. The use of both PVC and plywood formwork reduces construction costs while meeting the needs of different construction areas. PVC formwork has high strength and durability, making it suitable for construction on one side of the angle steel support frame 13; plywood formwork is easy to process and install, making it suitable for construction on the outside of the sealing structure 9.

[0044] A reserved passage is opened at the lower part of the sealing structure 9. This allows construction personnel to enter the enclosure cavity 7 for inspection, maintenance, or cleaning during construction. After the concrete inside the sealing structure 9 has solidified, the angle steel support frame 13 and PVC formwork 14 are removed and disassembled, and then taken out through the reserved passage, which improves the convenience of construction. Finally, the reserved passage is closed.

[0045] This application also discloses a construction method for a sealing structure of a building exterior wall drainage riser system, the construction method steps are as follows:

[0046] Step 1: Inject chemical adhesive into the blind hole, insert the horizontal anchor bar 11 into the blind hole, and tie the horizontal anchor bars 11 corresponding to the two opposite blind holes with steel wire at the overlapping splice. Tie the vertical anchor bars 10 at the corresponding position of the temporary window 5.

[0047] Step 2: The construction workers install expansion bolts 17 at the corresponding installation positions of the angle steel support frame 13 inside the enclosure cavity 7, weld the ends of the four horizontal angle steels 21 along their length to the expansion bolts 17, splice the first vertical angle steel 19 between the horizontal angle steels 21 and the outer bottom plate 6, and splice the second vertical angle steel 20 between two adjacent horizontal angle steels.

[0048] Step 3: Install PVC building template on the outside of angle steel support frame 13. Apply sealant 18 to the gap between PVC building template and initial enclosure structure 8 facing the enclosure cavity 7. Another template 14 on the outside of sealing structure 9 is plywood template. Apply sealant 18 to the outside of the gap between plywood template and initial enclosure structure 8. Reserve a passage position at the bottom of sealing structure 9.

[0049] Step 4: Install tie rods between angle steel support frame 13 and back rib square strip 15, leave a 200mm×150mm corbel grouting funnel at the top of the plywood template, and pour concrete.

[0050] Step 5: After the concrete has solidified, chisel and fill the grouting flared opening of the corbel and fill it. Remove the tie rod waterstop bolts, then remove the angle steel support frame 13, back rib square strip 15, PVC building formwork and plywood formwork. After disassembling the angle steel support frame 13 and PVC building formwork into small parts, move them away through the reserved channel. Fill the corresponding holes after removing the tie rod waterstop bolts.

[0051] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A building exterior wall drainage riser system, characterized by: The top corner part of the bottom plate (3) extends outward and away from the reinforced concrete outer wall (4) to form an outer bottom plate (6); The building outer wall drainage standpipe system comprises a drainage standpipe (1) and a surrounding structure (2); the surrounding structure (2) is formed by pouring concrete and is arranged between two adjacent outer bottom plates (6), one side of the surrounding structure (2) is fixedly connected with the reinforced concrete outer wall (4), and the surrounding structure (2) and the reinforced concrete outer wall (4) jointly form a surrounding cavity (7); the drainage standpipe (1) is arranged in the surrounding cavity (7), and the upper and lower ends of the drainage standpipe (1) respectively penetrate through the corresponding outer bottom plates (6).

2. A building exterior wall drainage riser system according to claim 1, wherein: The surrounding structure (2) comprises a primary surrounding structure (8) and a blocking structure (9), the primary surrounding structure (8) and the blocking structure (9) jointly form the surrounding structure (2), and the blocking structure (9) is arranged at the rear side of the drainage standpipe (1).

3. A building exterior wall drainage riser system according to claim 2, wherein: A plurality of vertical dowels (10) and a plurality of horizontal dowels (11) are arranged in the surrounding structure (2), the vertical dowels (10) and the horizontal dowels (11) are bound by steel wires at the intersection, and the horizontal dowels (11) in the blocking structure (9) extend into the primary surrounding structure (8).

4. A construction structure of a plugging structure, using the building outer wall drainage riser system of claim 3, characterized in that: The construction structure of the blocking structure (9) during construction comprises an angle steel support frame (13), a formwork (14), a back lath square bar (15) and a tensioned water stop screw (16), the angle steel support frame (13) in the surrounding cavity (7) is arranged on the primary surrounding structure (8), the formwork (14) is arranged on the side of the angle steel support frame (13) away from the surrounding cavity (7), another formwork (14) is arranged on the outer side of the primary surrounding structure (8) corresponding to the blocking structure (9), the vertical dowels (10) and the horizontal dowels (11) are arranged between the two formworks (14), the back lath square bar (15) is arranged transversely outside the other formwork (14), and the tensioned water stop screw (16) transversely penetrates through and locks the angle steel support frame (13) and the back lath square bar (15).

5. A construction structure for plugging a structure according to claim 4, characterized in that: Blind holes are formed in the two sides of the primary surrounding structure (8) facing the blocking structure (9), chemical adhesive is arranged in the blind holes, the horizontal dowels (11) in the blocking structure (9) are inserted into the blind holes, and the horizontal dowels (11) corresponding to the two opposite blind holes are bound by steel wires at the coincident joint.

6. A construction structure for plugging a structure according to claim 4, characterized in that: Sealing glue (18) is arranged outside the gap between the formwork (14) and the primary surrounding structure (8).

7. A construction structure for plugging a structure according to claim 4, characterized in that: The formwork (14) on the side of the angle steel support frame (13) away from the surrounding cavity (7) is a PVC building formwork, and the other formwork (14) on the outer side of the blocking structure (9) is a wood-polymer composite board formwork.

8. The construction structure for constructing a closure structure according to claim 4, wherein: Expansion bolts (17) are arranged on the primary surrounding structure (8), and the angle steel support frame (13) and the expansion bolts (17) are fixed by welding.

9. The construction structure for constructing a closure structure according to claim 4, wherein: A reserved channel is formed in the lower part of the blocking structure (9).

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