Anti-deformation roof parapet wall structure

Abstract

The utility model relates to the technical field of building structures, in particular to an anti-deformation roof parapet wall structure which comprises a concave parapet wall and a prefabricated wainscot. The concave parapet wall and a building main body are poured together and are vertically arranged on a roof, the concave parapet wall is of a 7-shaped structure, and a lower opening of the concave parapet wall is provided with an arc-shaped drip; the prefabricated wainscots are flush with the inner side face of the concave parapet wall structure, telescopic deformation joints are arranged between the prefabricated wainscots, telescopic deformation joints are also arranged between the prefabricated wainscots and the top of the concave parapet wall, the joints are filled with weather-proof sealant, and the telescopic deformation joints penetrate through the decoration layer. The problems of hollowing, cracking and falling caused by infirm bonding between a traditional plaster layer and a waterproof layer can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, and particularly relates to a deformation-proof roof parapet structure. Background Art

[0002] At present, roof parapets are usually constructed by integral in-situ casting, and the roof waterproof layer needs to turn up to the side of the parapet and reach a certain height. To ensure the effectiveness of the waterproof layer, masonry or plastering treatment is also required on its outer side as a protective layer. However, this flashing method not only occupies the effective space of the roof, but may also become a safety hazard for climbing in severe cases, and the protruding position also affects the overall aesthetics; if plastering is used, due to poor bonding, quality problems such as hollowing, cracking, and peeling are likely to occur.

[0003] Another common method is to fix the roof waterproof layer in the counterfort of the parapet and adopt a segmented construction method. Although this method can effectively solve the problem of waterproof closing, due to the discontinuity of the parapet, its integrity is poor and it may become unstable after being affected by external forces.

[0004] In addition, the prior art has not fully considered the problem that the thermal insulation layer (generally using extruded polystyrene board for thermal insulation) in an inverted roof will form water vapor after being stagnated with water and then expand, thereby damaging the upper structure. At the same time, the problem of floating and sinking caused by the stagnation of water in the thermal insulation layer has not been considered either, which will cause deformation of the waterproof protective layer on the side of the parapet. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a deformation-proof roof parapet structure, which is more stable, safe, beautiful and can effectively solve the problems of waterproofing, thermal insulation and deformation of the protective layer.

[0006] The technical means adopted by the utility model to solve its technical problems is: a deformation-proof roof parapet structure, including a concave parapet and a precast skirt; the concave parapet is vertically cast together with the building main body on the roof, showing a "7"-shaped structure, and a circular arc drip is arranged at the lower opening; the precast skirt is arranged flush with the inner side of the concave parapet structure, a telescopic deformation joint is arranged between each precast skirt, and a telescopic deformation joint is also arranged between the top of the precast skirt and the concave parapet, and a weather-resistant sealant is filled in the joint, and the telescopic deformation joint penetrates through the finishing layer.

[0007] In the above technical solution, the precast skirt includes a reinforced concrete wall panel, a rubber rod and steel nails; the reinforced concrete wall panel is internally equipped with single-layer bidirectional steel bars and is fixed on the concave parapet structure through the steel nails; the rubber rod is embedded at the top of the reinforced concrete wall panel, and the lower part is uniformly leveled by cement mortar.

[0008] In the above technical solution, the arc-shaped drip is fixed on the formwork by a semi-circular PVC pipe and integrally formed by in-situ casting once.

[0009] In the above technical solution, the width of the precast skirting board is the same as the indentation distance of the concave surface of the concave-shaped parapet wall.

[0010] In the above technical solution, the indentation distance of the concave surface of the concave-shaped parapet wall is 45 - 55 mm, and the height is 550 - 650 mm.

[0011] In the above technical solution, the expansion joint width between each precast skirting board is 5 - 15 mm; the expansion joint width between the precast skirting board and the top of the concave-shaped parapet wall is 15 - 25 mm.

[0012] In the above technical solution, after the expansion joint is filled with weather-resistant sealant, it is also covered with a protective cover strip.

[0013] In the above technical solution, the connection between the precast skirting board and the concave-shaped parapet wall is reinforced by a connecting piece.

[0014] In the above technical solution, the outer wall surface of the concave-shaped parapet wall is covered with an anti-corrosion and waterproof layer.

[0015] The beneficial effects of the present utility model are as follows: The parapet wall adopts a 7-shaped in-situ casting structure to form a basic force-bearing enclosure structure with good safety; the arc-shaped drip is fixed on the formwork by a semi-circular PVC pipe, which is convenient for demolding; the precast skirting board is flush with the inner side of the parapet wall, the surface is free of plastering, and there is no flashing protruding from the parapet wall, which is both beautiful and free of safety hazards; expansion joints are provided between the precast skirting boards and between the skirting boards and the parapet wall, the expansion joints penetrate the decoration layer, and are filled with weather-resistant sealant to ensure that the base layer will not crack due to thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a deformation-proof roof parapet wall structure shown in an embodiment of the present utility model;

[0017] Figure 2 It is a side schematic diagram of a concave-shaped parapet wall shown in an embodiment of the present utility model;

[0018] Figure 3 It is a front elevation schematic diagram of a concave-shaped parapet wall shown in an embodiment of the present utility model;

[0019] Figure 4 It is a schematic diagram of an expansion joint shown in an embodiment of the present utility model;

[0020] Figure 5 It is a schematic diagram of a precast skirting board shown in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. Each technical feature in the creation of the present utility model can be interactively combined on the premise of not conflicting with each other.

[0023] As Figures 1-5 shown, the present application provides a deformation-proof roof parapet structure, including a concave parapet 10 and a precast skirt 20.

[0024] Among them, the indentation distance of the concave surface of the concave parapet 10 is 45 - 55 mm, the height is 550 - 650 mm, and it is vertically arranged on the roof by casting together with the building main body, presenting a "7" - shaped structure, and a circular - arc drip 101 is provided at the lower opening.

[0025] In an exemplary embodiment, the indentation distance of the concave surface of the concave parapet is 45 mm and the height is 550 mm; in another embodiment, the indentation distance of the concave surface of the concave parapet is 50 mm and the height is 600 mm; in another embodiment, the indentation distance of the concave surface of the concave parapet is 55 mm and the height is 650 mm.

[0026] The concave parapet 10 is made of a high - strength and good crack - resistance concrete material, and an appropriate amount of micro - expansion agent is added to reduce shrinkage cracks and improve the durability of the overall structure.

[0027] In a possible implementation manner, the outer side wall surface of the concave parapet 10 is covered with an anti - corrosion and waterproof layer to improve the structural durability and prevent rainwater erosion and rust.

[0028] The precast skirt 20 is arranged flush with the inner side surface of the concave parapet 10 structure, and the width of the precast skirt is the same as the indentation distance of the concave surface of the concave parapet; a telescopic deformation joint 30 is provided between each precast skirt 20, and a telescopic deformation joint 30 is also provided between the top of the precast skirt 20 and the concave parapet 10. The joint is filled with a weather - resistant sealant 102, and the telescopic deformation joint 30 penetrates through the finishing layer.

[0029] In a possible implementation, the connection between the precast skirting 20 and the concave parapet 10 is reinforced with a connector made of stainless steel or galvanized steel plate to improve the stability and safety of the overall structure.

[0030] The anti-deformation roof parapet structure provided by this application uses a "7"-shaped cast-in-place parapet, which can not only ensure structural safety, but also fix the waterproof end at the inner corner of the "7"-shaped cast-in-place parapet, meeting the anti-leakage requirements; within the range of the upward turning height of the waterproof concave parapet, a precast skirting is used to replace the traditional waterproof plaster protection layer, effectively solving the problems of hollowing, cracking, and peeling caused by poor adhesion between the traditional plaster layer and the waterproof layer.

[0031] In a possible implementation, the precast skirting 20 includes a reinforced concrete wall panel 201, a rubber rod 202, and steel nails 203; a single-layer bidirectional steel bar 204 is provided inside the reinforced concrete wall panel 201, with dimensions of 2000 mm in length x 450 mm in height x 50 mm in thickness, and is fixed to the concave parapet 10 structure by the steel nails 203; the rubber rod 202 is embedded at the top of the reinforced concrete wall panel 201, and the lower part is leveled uniformly with M5 cement mortar.

[0032] The reinforced concrete wall panel 201 uses high-quality steel bars and cement meeting national standards to ensure the strength and stability of the wall; the rubber rod 202 is made of materials with good aging resistance and elasticity to maintain the sealing performance of the expansion joint for a long time.

[0033] By aligning the precast skirting flush with the inner side of the concave parapet structure, there is no need to make a flashing, and the climbing hazard can be eliminated; at the same time, through the expansion joint, the influence of the floating and sinking of water and water vapor on the insulation layer can be effectively avoided, no cracks will appear on the surface, and the later repair work can be reduced.

[0034] In a possible implementation, the arc-shaped drip 101 is fixed on the formwork with a semi-circular PVC pipe and formed integrally by casting in place at one time. Not only is the quality of the formed part good, but the drip groove structure can also meet the requirements of preventing rainwater leakage.

[0035] In a possible implementation, anti-slip strips or anti-slip nails are provided at the bottom of the precast skirting 20 to enhance the bonding force with the roof and prevent displacement caused by wind force or vibration.

[0036] In a possible implementation, the width of the expansion joint between each precast skirting 20 is 5 - 15 mm; the width of the expansion joint between the precast skirting 20 and the top of the concave parapet 10 is 15 - 25 mm. The expansion joint can overlap with the decoration separation joint to ensure that the base layer will not crack horizontally due to external forces.

[0037] In an exemplary embodiment, the width of the expansion joint between each precast skirting board 20 is 10 mm, and the width of the expansion joint between the top of the precast skirting board 20 and the concave parapet 10 is 20 mm.

[0038] In a possible implementation, after the expansion joint 30 is filled with weather-resistant sealant, it is further covered with a protective cover strip made of metal or plastic to protect the sealant from external physical damage and enhance the durability of the overall structure.

[0039] For the anti-deformation roof parapet structure provided by the present utility model, the parapet adopts a 7-shaped cast-in-place structure to form a basic force-bearing enclosure structure with good safety; the arc-shaped drip is fixed on the formwork with a semi-circular PVC pipe, which is convenient for demoulding; the precast skirting board is flush with the inner side of the parapet, the surface is free of plastering, and there is no flashing protruding from the parapet, which is both beautiful and free of safety hazards; expansion joints are provided between the precast skirting boards and between the precast skirting boards and the parapet, and the expansion joints penetrate the finishing layer and are filled with weather-resistant sealant to ensure that the base layer will not crack due to thermal expansion and contraction.

[0040] The above is a specific description of the preferred embodiment of the present utility model, but the present utility model is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A deformation-resistant roof parapet structure, characterized in that: It includes a concave parapet and a prefabricated wall skirt; the concave parapet is cast together with the main body of the building and is vertically arranged on the roof, forming a "7"-shaped structure, and a circular arc-shaped drip is arranged at the lower end; the prefabricated wall skirt is arranged flush with the inner side of the concave parapet structure, expansion and deformation joints are arranged between each of the prefabricated wall skirts, and expansion and deformation joints are also arranged between the prefabricated wall skirt and the top of the concave parapet, and the joints are filled with weather-resistant sealant, and the expansion and deformation joints run through the decoration layer.

2. The anti-deformation roof parapet structure according to claim 1, characterized in that: The arc-shaped drip is fixed on the template by a semicircular PVC pipe and is integrally formed in one step by casting.

3. The anti-deformation roof parapet structure according to claim 1, characterized in that: The prefabricated wall skirt comprises reinforced concrete wall panels, rubber rods and steel nails; the reinforced concrete wall panels are equipped with a single layer of bidirectional steel bars and are fixed to the concave parapet structure by the steel nails; the rubber rods are pre-embedded on the top of the reinforced concrete wall panels, and the lower part is uniformly leveled by cement mortar.

4. The anti-deformation roof parapet structure according to claim 1, characterized in that: The width of the prefabricated wall skirt is consistent with the indentation distance of the concave surface of the concave parapet.

5. The anti-deformation roof parapet structure according to claim 1, characterized in that: The concave surface of the concave parapet is indented by 45-55 mm and has a height of 550-650 mm.

6. The anti-deformation roof parapet structure according to claim 1, characterized in that: The expansion and contraction joints between each prefabricated wall skirt are 5-15 mm wide; the expansion and contraction joints between the prefabricated wall skirt and the top of the concave parapet are 15-25 mm wide.

7. The anti-deformation roof parapet structure according to claim 1, characterized in that: The expansion joint is filled with weather-resistant sealant and is also covered with a protective cover strip.

8. The anti-deformation roof parapet structure according to claim 1, characterized in that: The bottom of the prefabricated wall panel is provided with anti-skid strips or anti-skid nails.

9. The anti-deformation roof parapet structure according to claim 1, characterized in that: The connection between the prefabricated wall skirt and the concave parapet is reinforced by a connecting piece.

10. The anti-deformation roof parapet structure according to claim 1, characterized in that: The outer wall surface of the concave parapet is covered with an anti-corrosion and waterproof layer.

Images