Structure and method for preventing and treating guardrail coping crack leakage and deterioration decay

Abstract

The invention discloses a structure and method for preventing and treating guardrail coping crack leakage and deterioration decay. The structure comprises a concrete guardrail, a prefabricated part and a first steel mesh belt. And the first steel mesh belt is nailed on the bonding surface of the prefabricated part. The first steel mesh belts are nailed on the bonding surfaces of the prefabricated parts and the inner side and the outer side of the concrete guardrail, and the first steel mesh belts and the bonding surfaces of the prefabricated parts are bonded and fixed to the top end face of the concrete guardrail through polymer mortar, so that the prefabricated parts are fixed to the top end face of the concrete guardrail in a dual-connection mode; the integrity, stability, durability and reliability of the top pressing part of the concrete guardrail can be effectively improved, the capability of resisting solarization, temperature difference and wind and rain erosion is greatly enhanced, the defects of structure premature senility and deterioration caused by displacement deformation are not prone to occurring, and therefore the technical problem that cracking leakage and deterioration decay of the top pressing area of the concrete guardrail are difficult to prevent and control is effectively solved.

Description

Technical Field

[0001] The invention relates to the technology of building construction field, in particular to a structure and method for preventing and controlling guardrail top cracking, leakage and deterioration. Background Art

[0002] Roof concrete guardrails are safety facilities in building structures used to protect the edge of the roof and prevent people or objects from falling. This type of concrete guardrail is usually made of concrete material and has the characteristics of high strength, good durability, and low maintenance cost. It is very suitable for use in outdoor environments, especially in situations where it needs to withstand large loads or severe weather conditions. Roof concrete structure guardrails are widely used in various construction scenarios, including but not limited to: 1. Roof edge protection of high-rise buildings. 2. Protection of terraces and balconies in residential buildings such as villas and houses. 3. Protection of rooftop safe passages and maintenance platforms in buildings such as industrial plants and warehouses. 4. Protection of rooftop activity areas of public buildings such as schools and hospitals. 5. Protection of courtyard walls.

[0003] Roof concrete guardrail is one of the important facilities to ensure building safety. Through reasonable design, material selection and installation, the guardrail can play an effective role in protecting personnel safety. At the same time, regular maintenance and inspection are also the key to ensuring the long-term and stable operation of the guardrail.

[0004] Although the top of the roof concrete guardrail has high strength, it is very brittle and has a weak ability to resist external forces such as sunlight and temperature difference. The top of the concrete guardrail is prone to displacement, deformation and cracking when exposed to external forces such as sunlight and temperature difference for a long time, resulting in the disadvantages of premature aging and deterioration of the structure. Therefore, it is necessary to study a solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention focuses on the defects existing in the general practices of roof concrete guardrail technology. By using the dual connection and fixing process of bonding and anchoring at the top of the roof concrete structure guardrail, combined with the optimized component joint structure, and compounding prefabricated components with good thermal insulation performance, the ability of the top of the roof concrete guardrail to resist sunlight, temperature difference, wind and rain erosion is greatly enhanced, thereby effectively ensuring the integrity, durability, stability, safety and reliability of the roof concrete structure guardrail.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A structure for preventing and controlling guardrail top cracking, leakage and deterioration and decay, comprising a concrete guardrail, a prefabricated component and a first steel mesh belt; the first steel mesh belt is nailed to the bonding surface of the prefabricated component, the bonding surface of the first steel mesh belt and the prefabricated component is fixed to the top surface of the concrete guardrail by bonding with polymer mortar, and the two sides of the first steel mesh belt are nailed to the inner and outer sides of the concrete guardrail respectively.

[0008] As a preferred embodiment, the first steel mesh belt is a special steel mesh belt with ribs, which is processed from a metal sheet into a three-dimensional mesh sheet metal component with a plurality of diamond-shaped bonding through holes. The first steel mesh belt includes a sheet-shaped component body with a plurality of through holes on the component body. The component body is a bendable three-dimensional mesh structure, which includes a plurality of side strips that cross each other to form a three-dimensional mesh structure, and each side strip is in a wavy three-dimensional kinked shape; the intersection of each side strip is a through hole for adhesive filling and bonding, and the through hole is one of diamond, circular, square or irregular geometric shapes, and the component body is also provided with ribs for anchor nails to pass through for nailing, and the ribs are located in the middle or side of the component body.

[0009] As a preferred solution, the length of the first steel mesh belt is twice or more than the width of the concrete guardrail, wherein the length of the first steel mesh belt nailed to the bonding surface of the prefabricated component is consistent with or slightly shorter than the width of the concrete guardrail by 10 to 20 mm.

[0010] As a preferred solution, the prefabricated components are cement prefabricated components, foamed ceramic plates, aerated concrete blocks or sintered brick blocks.

[0011] As a preferred solution, both sides of the prefabricated component protrude from the inner and outer sides of the concrete guardrail by 10 to 100 mm; or, one side of the prefabricated component is flush with the decorative surface of one side of the concrete guardrail, and the other side of the prefabricated component protrudes from the decorative surface of the other side of the concrete guardrail by 10 to 60 mm; or, both sides of the prefabricated component are flush with the decorative surfaces of both sides of the concrete guardrail.

[0012] As a preferred solution, there are multiple prefabricated components, and a first steel mesh belt is fixed to the bonding surface of each prefabricated component. The multiple prefabricated components are spliced ​​side by side horizontally, and the top surfaces of the ends of two adjacent prefabricated components are provided with slits. The two sides of a U-shaped component are respectively embedded in the slits of the two adjacent prefabricated components to seal the splicing seam between the two adjacent prefabricated components, and the splicing seam is filled with polymer mortar.

[0013] As a preferred solution, there are multiple prefabricated components, and a first steel mesh belt is fixed to the bonding surface of each prefabricated component. Multiple prefabricated components are spliced ​​side by side horizontally, and adjacent prefabricated components are hooked up and down with mortise and tenon joints and bonded with polymer mortar.

[0014] As a preferred solution, there are multiple prefabricated components, and the bonding surface of each prefabricated component is fixed with a first steel mesh belt. The multiple prefabricated components are spliced ​​side by side horizontally, and a recess is formed between two adjacent prefabricated components. The recess is high in the middle and low on both sides, and a cement prefabricated part or a second steel mesh belt is sealed in the recess by polymer mortar to fill the recess.

[0015] As a preferred solution, the outer surface of the prefabricated component is provided with an impermeability and moisture-proof coating.

[0016] A method for preventing guardrail pressure top cracking, leakage and deterioration and decay, using the above-mentioned structure for preventing guardrail pressure top cracking, leakage and deterioration and decay, includes the following steps:

[0017] (1) Pre-preparing a prefabricated component and a first steel mesh belt;

[0018] (2) Nailing the first steel mesh belt to the bonding surface of the prefabricated component;

[0019] (3) The bonding surface of the first steel mesh belt and the prefabricated component is fixed to the top surface of the concrete guardrail by means of polymer mortar;

[0020] (4) Nail both sides of the first steel mesh belt to the inner and outer sides of the concrete guardrail respectively.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0022] By nailing the first steel mesh belt to the bonding surface of the prefabricated component and the inner and outer sides of the concrete guardrail, and coordinating the first steel mesh belt and the bonding surface of the prefabricated component to be fixed to the top surface of the concrete guardrail through polymer mortar, the prefabricated component is double-connected and fixed to the top surface of the concrete guardrail, which can effectively improve the integrity, stability and durability of the top pressure of the concrete guardrail, greatly enhance the ability to resist sunlight, temperature difference and wind and rain erosion, and is not prone to displacement and deformation leading to premature aging and deterioration of the structure, thereby effectively solving the technical problem of difficult prevention and control of cracks and deterioration in the top pressure area of ​​the concrete guardrail.

[0023] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a longitudinal cross-sectional view of a first preferred embodiment of the present invention;

[0025] Figure 2 yes Figure 1 A partial enlarged schematic diagram of

[0026] Figure 3 yes Figure 2 Another structural diagram;

[0027] Figure 4 is a transverse partial cross-sectional view of a first preferred embodiment of the present invention;

[0028] Figure 5 yes Figure 4Schematic diagram of the medium-profile component;

[0029] Figure 6 It is a transverse partial cross-sectional view of another structure of the first preferred embodiment of the present invention;

[0030] Figure 7 It is a partial transverse cross-sectional view of another structure of the first preferred embodiment of the present invention;

[0031] Figure 8 It is a partial transverse cross-sectional view of another structure of the first preferred embodiment of the present invention;

[0032] Fig. 9 yes Figure 8 A three-dimensional schematic diagram of the second steel mesh belt;

[0033] Fig.10 is a longitudinal cross-sectional view of a second preferred embodiment of the present invention;

[0034] Fig.11 It is a longitudinal cross-sectional view of the third preferred embodiment of the present invention.

[0035] Description of the accompanying drawings:

[0036] 10. Concrete guardrail 11. Concrete body

[0037] 12. Decorative surface 20. Prefabricated components

[0038] 21. Anti-seepage and moisture-proof coating 22. Cutting

[0039] 23. Mortise and tenon joints 24. The first drip line

[0040] 25. Second drip line 201. Joint seam

[0041] 202, joint seam 203, concave position

[0042] 30. First steel mesh belt 31. Component body

[0043] 32, rib 301, through hole

[0044] 40. Polymer mortar 51. First anchor

[0045] 52. Second anchor 53. U-shaped member

[0046] 54. Cement precast parts 55. Second steel mesh belt

[0047] 56. The third anchor. DETAILED DESCRIPTION

[0048] Please refer to Figures 1 to 9As shown, it shows the specific structure of the first preferred embodiment of the present invention, which is a structure for preventing and controlling the guardrail from being cracked, leaked, deteriorated and decayed, including a concrete guardrail 10, a prefabricated component 20 and a first steel mesh belt 30.

[0049] The concrete guardrail 10 includes a concrete body 11 and decorative surfaces 12 disposed on both inner and outer sides of the concrete body 11 .

[0050] The prefabricated component 20 is a cement prefabricated component, a foamed ceramic plate, an aerated concrete block or a sintered brick block, etc., but is not limited thereto. The prefabricated component 20 has a lower elastic modulus than the concrete structure and has a certain toughness. The prefabricated component 20 has good compressive strength and can well resist the influence of external forces such as sunlight, temperature difference, rain and snow. Figure 2 As shown, the top surface of the prefabricated component 20 is a broken surface inclined outward or inward to form a drainage slope to facilitate drainage; Figure 3 As shown, the top surface of the prefabricated component 20 can also be a horizontal surface, without limitation. Also, the outer surface of the prefabricated component 20 is provided with an anti-seepage and moisture-proof coating 21 to enhance the anti-seepage performance of the prefabricated component 20. In addition, both sides of the prefabricated component 20 are flush with the decorative surfaces 12 on both sides of the concrete guardrail 10.

[0051] The first steel mesh belt 30 is nailed to the bonding surface of the prefabricated component 20, and the bonding surfaces of the first steel mesh belt 30 and the prefabricated component 20 are adhered and fixed to the top surface of the concrete guardrail 10 through polymer mortar 40, and both sides of the first steel mesh belt 30 are respectively nailed to the inner and outer sides of the concrete guardrail 10. In this embodiment, the first steel mesh belt 30 is nailed to the bonding surface of the prefabricated component 20 through a plurality of first anchors 51, and both sides of the first steel mesh belt 30 are respectively nailed to the inner and outer sides of the concrete guardrail 10 through second anchors 52. Furthermore, the first steel mesh belt 30 is a special steel mesh belt with ribs, which is processed from a metal sheet to form a three-dimensional mesh sheet metal component with a plurality of diamond-shaped bonding through holes. The first steel mesh belt 30 includes a sheet-shaped component body 31, and the component body 31 is provided with a plurality of through holes 301. The component body 31 is a bendable three-dimensional mesh structure, which includes a plurality of side strips that cross each other to form a three-dimensional mesh structure, and each side strip is in a wavy three-dimensional kinked shape; the intersection of each side strip is a through hole 301 for adhesive filling and bonding, and the through hole 301 is one of a diamond, circular, square or irregular geometric shape, and the component body 31 is also provided with ribs 32 for anchor nails to pass through for nailing, and the ribs 32 are located in the middle or side of the component body 31. The length of the first steel mesh belt 30 is twice or more than the width of the concrete guardrail 10, wherein the length of the first steel mesh belt 30 nailed to the bonding surface of the prefabricated component 20 is the same as the width of the concrete guardrail 10 or slightly shorter by 10 to 20 mm.

[0052] like Figure 4 and Figure 5 As shown, there are multiple prefabricated components 20, and the bonding surface of each prefabricated component 20 is fixed with a first steel mesh belt 30. Multiple prefabricated components 20 are horizontally spliced ​​side by side, and the top surfaces of the ends of two adjacent prefabricated components 20 are provided with slits 22. The two sides of a U-shaped component 53 are respectively embedded in the slits 22 of the two adjacent prefabricated components 20 to cover the splicing seam 201 between the two adjacent prefabricated components 20, and the splicing seam 201 is filled with polymer mortar 40. In this embodiment, the U-shaped component 53 is made of stainless steel or aluminum, but it is not limited thereto, and the U-shaped component 53 is bonded and fixed to the polymer mortar 40 in the splicing seam 201.

[0053] like Figure 6 As shown, there are multiple prefabricated components 20, and the bonding surface of each prefabricated component 20 is fixed with a first steel mesh belt 30. The multiple prefabricated components 20 are spliced ​​side by side horizontally, and the adjacent prefabricated components 20 are hooked up and down by mortise and tenon joints 23 and bonded by polymer mortar 40, so as to greatly extend the length and bonding surface of the splicing seam 202 between the adjacent prefabricated components 20, so that the connection between the adjacent prefabricated components 20 is simple, and more stable and reliable.

[0054] like Figure 7 and Figure 8 As shown, there are multiple prefabricated components 20, and the bonding surface of each prefabricated component 20 is fixed with a first steel mesh belt 30. Multiple prefabricated components 20 are arranged side by side in a horizontal manner, and a concave position 203 is formed between two adjacent prefabricated components 20. The concave position 203 is high in the middle and low on both sides, and the concave position 203 is sealed with a cement prefabricated part 54 or a second steel mesh belt 55 by polymer mortar 40 to fill the concave position. And, as Figure 7 As shown, the top surface of the cement prefabricated part 54 is exposed and flush with the top surface of the prefabricated component 20. Figure 8 As shown, the second steel mesh belt 55 is buried in the polymer mortar 40 , and two sides of the second steel mesh belt 55 are respectively fixedly connected to two adjacent prefabricated components 20 by third anchors 56 .

[0055] The present invention also discloses a method for preventing and controlling guardrail pressure top cracking, leakage, and degradation and decay, which adopts the above-mentioned structure for preventing and controlling guardrail pressure top cracking, leakage, and degradation and decay, and includes the following steps:

[0056] (1) The prefabricated component 20 and the first steel mesh belt 30 are prepared in advance.

[0057] (2) Nail the first steel mesh belt 30 to the bonding surface of the prefabricated component 2.

[0058] (3) The bonding surface of the first steel mesh belt 30 and the prefabricated component 20 is glued and fixed to the top surface of the concrete guardrail 10 through polymer mortar 40.

[0059] (4) The two sides of the first steel mesh belt 30 are nailed to the inner and outer sides of the concrete guardrail 10 respectively.

[0060] Please refer to Fig.10 As shown, it shows the specific structure of the second preferred embodiment of the present invention, a structure for preventing the guardrail from cracking and deteriorating. The specific structure of this embodiment is basically the same as the specific structure of the first preferred embodiment, except that:

[0061] In this embodiment, one side of the prefabricated component 20 is flush with the decorative surface 12 of one side of the concrete guardrail 10, and the other side of the prefabricated component 20 protrudes from the decorative surface 12 of the other side of the concrete guardrail 10 by 10 to 60 mm, and a first drip line 24 is provided at the bottom of the other side of the prefabricated component 20.

[0062] Please refer to Fig.10 As shown, it shows the specific structure of the structure for preventing the guardrail from cracking and deteriorating due to pressure top cracking and decay in the third preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as the specific structure of the first preferred embodiment mentioned above, and the difference is that:

[0063] In this embodiment, both sides of the prefabricated component 20 protrude from the inner and outer sides of the concrete guardrail 10 by 10 to 100 mm, and second drip lines 25 are provided at the bottom of both sides of the prefabricated component 20 .

[0064] The design focus of the present invention is: by nailing the first steel mesh belt to the bonding surface of the prefabricated component and the inner and outer sides of the concrete guardrail, and coordinating the first steel mesh belt and the bonding surface of the prefabricated component to be fixed to the top surface of the concrete guardrail through polymer mortar, the double connection and fixation of the prefabricated component on the top surface of the concrete guardrail can be achieved, which can effectively improve the integrity, stability and durability of the top pressure position of the concrete guardrail, greatly enhance the ability to resist sunlight, temperature difference and wind and rain erosion, and is not prone to displacement and deformation leading to premature aging and deterioration of the structure, thereby effectively solving the technical problem of difficult prevention and control of cracks and deterioration in the top pressure area of ​​the concrete guardrail.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A structure for preventing guardrail top cracking, leakage and deterioration, characterized by: It includes a concrete guardrail, a prefabricated component and a first steel mesh belt; the first steel mesh belt is nailed to the bonding surface of the prefabricated component, the bonding surface of the first steel mesh belt and the prefabricated component is fixed to the top surface of the concrete guardrail by bonding with polymer mortar, and the two sides of the first steel mesh belt are nailed to the inner and outer sides of the concrete guardrail respectively.

2. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: The first steel mesh belt is a special steel mesh belt with ribs, which is processed from a metal sheet into a three-dimensional mesh sheet metal component with a plurality of diamond-shaped through holes for bonding. The first steel mesh belt includes a sheet-shaped component body with a plurality of through holes on the component body. The component body is a bendable three-dimensional mesh structure, which includes a plurality of side strips that cross each other to form a three-dimensional mesh structure, and each side strip is in a wavy three-dimensional kinked shape; the intersection of each side strip is a through hole for adhesive filling and bonding, and the through hole is one of diamond, circular, square or irregular geometric shapes, and the component body is also provided with ribs for anchor nails to pass through for nailing, and the ribs are located in the middle or side of the component body.

3. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: The length of the first steel mesh belt is twice or more than the width of the concrete guardrail, wherein the length of the first steel mesh belt nailed to the bonding surface of the prefabricated component is consistent with the width of the concrete guardrail or slightly shorter by 10 to 20 mm.

4. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: The prefabricated components are cement prefabricated components, foamed ceramic plates, aerated concrete blocks or sintered brick blocks.

5. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: The two sides of the prefabricated component protrude 10 to 100 mm from the inner and outer sides of the concrete guardrail; or, one side of the prefabricated component is flush with the decorative surface of one side of the concrete guardrail, and the other side of the prefabricated component protrudes 10 to 60 mm from the decorative surface of the other side of the concrete guardrail; or, the two sides of the prefabricated component are respectively flush with the decorative surfaces of both sides of the concrete guardrail.

6. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: There are multiple prefabricated components, and a first steel mesh belt is fixed to the bonding surface of each prefabricated component. The multiple prefabricated components are spliced ​​side by side horizontally, and the top surfaces of the ends of two adjacent prefabricated components are provided with slits. Both sides of a U-shaped component are respectively embedded in the slits of the two adjacent prefabricated components to seal the splicing seam between the two adjacent prefabricated components, and the splicing seam is filled with polymer mortar.

7. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized by: There are multiple prefabricated components, and a first steel mesh belt is fixed on the bonding surface of each prefabricated component. The multiple prefabricated components are spliced ​​side by side in a horizontal manner, and two adjacent prefabricated components are hooked up and down with mortise and tenon joints and bonded with polymer mortar.

8. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized by: There are multiple prefabricated components, and a first steel mesh belt is fixed to the bonding surface of each prefabricated component. The multiple prefabricated components are spliced ​​side by side horizontally, and a recess is formed between two adjacent prefabricated components. The recess is high in the middle and low on both sides, and a cement prefabricated part or a second steel mesh belt is sealed in the recess by polymer mortar to fill the recess.

9. The structure for preventing guardrail cap cracking, leakage and deterioration according to claim 1 is characterized in that: The outer surface of the prefabricated component is provided with an impermeable and moisture-proof coating.

10. A method for preventing guardrail top cracking, leakage and deterioration, characterized in that: The structure for preventing and controlling guardrail cap cracking, leakage and deterioration as claimed in any one of claims 1 to 9 comprises the following steps: (1) Pre-preparing a prefabricated component and a first steel mesh belt; (2) Nailing the first steel mesh belt to the bonding surface of the prefabricated component; (3) The bonding surface of the first steel mesh belt and the prefabricated component is fixed to the top surface of the concrete guardrail by means of polymer mortar; (4) Nail both sides of the first steel mesh belt to the inner and outer sides of the concrete guardrail respectively.

Images