Fireproof and thermal insulation system for outer wall and construction method thereof

Abstract

The invention discloses an outer wall fire prevention and heat preservation system and a construction method thereof.The outer wall fire prevention and heat preservation system comprises two heat preservation assemblies and a steel frame assembly, and the two heat preservation assemblies are arranged on the two sides of the steel frame assembly correspondingly; the steel frame assembly comprises a plurality of stirrups and a plurality of transverse bars; the multiple stirrups are arranged at equal intervals, one side of each stirrup is provided with an opening end, the opening ends of every two connected stirrups are arranged in the opposite directions, and the two ends, located at the opening ends, of the stirrups are each in a barb shape. A plurality of transverse bars are evenly divided into two parts, each part of transverse bars is arranged on one side of the interior of a plurality of stirrups at equal intervals, one transverse bar is arranged on the inner sides of the barbs which are located on the same side and located on the same horizontal line, and the transverse bars are fixed to the stirrups and the barbs on the stirrups in a steel bar binding mode. And the installation stability of the external wall fireproof and thermal insulation system and the rigidity of the structural wall body are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of exterior wall thermal insulation systems, in particular to an exterior wall fire protection and thermal insulation system and a construction method thereof. Background Art

[0002] With the continuous development of the construction industry, people have higher and higher requirements for the safety and comfort of buildings. As an important part of a building, the fire protection and thermal insulation performance of the exterior wall are crucial. A good exterior wall fire protection and thermal insulation system can effectively improve the safety of the building, reduce the risk of fire, reduce energy consumption, and improve indoor comfort.

[0003] However, existing exterior wall fire protection and insulation systems and their construction methods often have some problems. In terms of fire protection performance, some materials have insufficient flame retardancy. Once a fire occurs, it is easy to spread rapidly, posing a serious threat to people's lives and property. In terms of thermal insulation performance, some thermal insulation materials have unsatisfactory thermal insulation effects, resulting in energy waste.

[0004] In addition, during the construction process, due to improper installation methods and other reasons, the installation stability of the system is not high, and safety hazards such as falling off are prone to occur, affecting the overall quality and service life of the building. Summary of the invention

[0005] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present invention is to provide an exterior wall fire protection and thermal insulation system and a construction method thereof, to enhance the fire protection and thermal insulation performance of the exterior wall fire protection and thermal insulation system, and to enhance the stability of its installation and the rigidity of the structural wall.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an external wall fire protection and thermal insulation system and a construction method thereof, the external wall fire protection and thermal insulation system comprises two thermal insulation components and a steel frame component, the two thermal insulation components are respectively arranged on both sides of the steel frame component; The steel frame assembly includes a plurality of stirrups and a plurality of transverse bars; A plurality of stirrups are arranged equidistantly, one side of each stirrup is provided with an open end, the open ends of two connected stirrups are arranged in opposite directions, and the two ends of the stirrups at the open ends are both arranged in a barb shape; The plurality of transverse bars are divided into two parts, each of which is equidistantly arranged on one side of the plurality of stirrups, and a common transverse bar is arranged on the inner sides of the plurality of barbs on the same side and on the same horizontal line, and the transverse bars are fixed to the stirrups and the barbs on the stirrups by steel bar binding.

[0007] Further, the steel frame assembly includes a plurality of bracing bars; A plurality of the bracing bars are arranged in groups of two at the intersection of the stirrups and the transverse bars excluding the two ends of the stirrups. The two bracing bars in the same group are respectively located at two diagonals of the intersection of the stirrups and the transverse bars, and the bracing bars are arranged perpendicular to the transverse bars and the two ends are respectively perpendicular to the two sides of the stirrups. The bracing bars and the transverse bars and stirrups in contact therewith are fixed by steel bar binding.

[0008] Furthermore, the insulation component includes an insulation plate, and two groups of reserved holes are symmetrically opened on the insulation plate, each group of the reserved holes includes a plurality of the reserved holes, and the plurality of the reserved holes in each group are arranged equidistantly.

[0009] Furthermore, a plurality of rows of thickened bosses are equidistantly provided on one end surface of the insulation board, the thickened bosses are located at positions where the reserved holes are opened on the insulation board, and the reserved holes penetrate the insulation board and the thickened bosses together.

[0010] Furthermore, the thermal insulation assembly includes a plurality of reinforcing ribs; The insulation board is provided with a plurality of grooves, the orientation of the grooves is perpendicular to the orientation of the thickened bosses and is located at the positions where the reserved holes are provided on the insulation board; The reinforcing rib is embedded in the groove, and a plurality of threaded holes are formed on the reinforcing rib. When the reinforcing rib is embedded in the groove, the threaded holes thereon correspond to the reserved holes one by one.

[0011] Furthermore, it includes a reinforcement component, which includes a long bolt. The long bolt is inserted into the corresponding threaded holes and the reserved holes and passes through the two insulation boards at the same time.

[0012] Furthermore, the reinforcement assembly includes an expansion sleeve, which includes a threaded tube and an expansion tube. One end of the threaded tube is fixedly connected to one end of the expansion tube. An internal thread is provided on the inner side of the threaded tube. An annular boss is provided inside the expansion tube. The surface of the annular boss is inclined and smoothly connected to the inner side of the threaded tube. A plurality of interrupting grooves are provided on the expansion tube.

[0013] Furthermore, a plurality of small protrusions are provided on the outer side wall of the expansion sleeve, and the expansion sleeve is made of pure iron.

[0014] The construction method of the exterior wall fire protection and insulation system, the specific steps are as follows: S1. Pretreatment of the base layer: clean the base surface of the structural wall, remove materials that hinder bonding, and check the flatness of the wall surface; S2. Pre-embed longitudinal reinforcement: embed a number of longitudinal reinforcements at equal distances on the bottom surface at a distance greater than 100 mm and less than 300 mm from the base surface of the structural wall; S3. Installation of the external wall fire protection and thermal insulation system: Apply adhesive on the outer side of one of the insulation boards of the external wall fire protection and thermal insulation system, with the thickness of the adhesive applied being ≥10mm, and use a scraper to flatten the adhesive into strips to ensure that the bonding area is ≥80%. Place the insulation board coated with adhesive facing the base surface of the structural wall, and pass the longitudinal reinforcement through the steel frame assembly until the external wall fire protection and thermal insulation system is installed in contact with the ground, and then install the external wall fire protection and thermal insulation system in affixed to the base surface of the structural wall; S4, installation of reinforcement components, the reinforcement components are fixedly installed through two insulation boards and the steel frame components therein and the base surface of the structural wall; S5. Concrete reinforcement: pour concrete into the steel frame assembly until the concrete completely fills the interior of the steel frame assembly.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. Stirrups can be made by bending steel bars. Stirrups that meet the requirements can be mass-produced only by bending machines and other equipment. When making steel frame components, adjacent stirrups are set in reverse, which can avoid the disadvantage that one side of the steel frame component is easily deformed due to the open end of the stirrups. The stirrups, transverse bars and bracing bars contained in the steel frame components can be processed by common steel structure processing equipment, so mass production of steel frame components is convenient; 2. By opening a groove on the insulation board and adding reinforcing ribs in the groove, the long bolts pass through the insulation board and mesh with the reinforcing ribs. The resulting pressure is evenly distributed on the insulation board by the reinforcing ribs, thus preventing the insulation board from breaking due to excessive meshing pressure of the long bolts. The thickened boss added on the insulation board can further enhance the structural rigidity of the insulation board, and the reinforcing ribs are embedded in the grooves, making the surface of the insulation board smooth, which is convenient for applying adhesives or plastering mortar and other materials; 3. When the exterior wall fire protection and thermal insulation system is fixedly installed on the structural wall base, a hole can be drilled on the wall through the reserved hole in advance, and then the expansion sleeve is inserted into the hole, and then the exterior wall fire protection and thermal insulation system is attached to the wall, and the long bolt is passed through the corresponding threaded hole and the reserved hole, and then the thread is engaged with the expansion sleeve. When the long bolt is screwed into the expansion sleeve, the annular boss expands outward under the pressure of the end of the long bolt, driving the entire expansion tube to expand, and squeeze each other with the hole on the structural wall base, so that the exterior wall fire protection and thermal insulation system can be stably fixed on the structural wall base; 4. Since there are several small protrusions on the surface of the expansion sleeve, when it is inserted into the hole on the base surface of the structural wall, it rubs against the inner wall of the hole, causing the outer side coating of the small protrusion to be scratched off. Therefore, after the installation of the exterior wall fire protection and thermal insulation system, the outer surface of the expansion sleeve will rust in a short time, causing the outer surface of the expansion sleeve to expand and squeeze more tightly against the inner wall of the hole on the base surface of the structural wall; 5. By pre-embedding longitudinal reinforcement and pouring concrete into the steel frame assembly after installing the exterior wall fire protection and thermal insulation system, the entire exterior wall fire protection and thermal insulation system can be stably installed on the exterior wall. After the concrete solidifies, the steel frame assembly forms a steel-concrete wall to separate the two insulation boards, thereby further improving the thermal insulation performance and the fire resistance of the entire exterior wall fire protection and thermal insulation system. The overall structural strength is also greatly improved, greatly improving the structural strength of the exterior wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] In the figure: Figure 1 It is a three-dimensional schematic diagram of the exterior wall fire protection and thermal insulation system of the present invention; Figure 2 yes Figure 1 An exploded schematic diagram of the insulation component in FIG. Figure 3 yes Figure 1 A three-dimensional schematic diagram of a steel frame assembly in FIG. Figure 4 yes Figure 1 An exploded schematic diagram of the reinforcement components in FIG. Figure 5 yes Figure 4 A cross-sectional view of the expansion sleeve in FIG. In the figure: 1. Insulation components; 11. Insulation board; 12. Reinforcement ribs; 111, thickened boss; 1101, groove; 1102, reserved hole; 1201, threaded hole; 2. Steel frame components; 21. stirrups; 22. transverse reinforcement; 23. bracing reinforcement; 211. Barb; 3. Reinforcement components; 31. Long bolt; 32. Expansion sleeve; 321, threaded pipe; 322, expansion pipe; 3220, interrupted groove; 3221, annular boss. DETAILED DESCRIPTION

[0018] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0019] See also Figure 1-5 , the present invention provides a technical solution: The exterior wall fire protection and thermal insulation system comprises two thermal insulation components 1, a steel frame component 2 and a plurality of reinforcement components 3.

[0020] The two heat-insulating components 1 are respectively arranged on both sides of the steel frame component 2 .

[0021] The heat-insulating assembly 1 comprises a heat-insulating plate 11 and a plurality of reinforcing ribs 12 .

[0022] Two groups of reserved holes 1102 are symmetrically provided on the insulation board 11, each group of reserved holes 1102 includes a plurality of reserved holes 1102, and the plurality of reserved holes 1102 in each group are equidistantly arranged, and a plurality of rows of thickened bosses 111 are equidistantly provided on one end face of the insulation board 11, the thickened bosses 111 are located at positions where the reserved holes 1102 are provided on the insulation board 11, and the reserved holes 1102 penetrate the insulation board 11 and the thickened bosses 111 together, and a plurality of grooves 1101 are provided on the insulation board 11, and the orientation of the grooves 1101 is perpendicular to the orientation of the thickened bosses 111 and are located at positions where the reserved holes 1102 are provided on the insulation board 11.

[0023] The reinforcing rib 12 is embedded in the groove 1101 , and a plurality of threaded holes 1201 are formed on the reinforcing rib 12 . When the reinforcing rib 12 is embedded in the groove 1101 , the threaded holes 1201 thereon correspond one-to-one with the reserved holes 1102 .

[0024] The steel frame assembly 2 includes a plurality of stirrups 21 , a plurality of transverse bars 22 and a plurality of bracing bars 23 .

[0025] A plurality of stirrups 21 are arranged equidistantly, one side of each stirrup 21 is provided with an open end, the open ends of two connected stirrups 21 are arranged in opposite directions, and both ends of the stirrups 21 at the open ends are arranged in the shape of barbs 211 .

[0026] The plurality of transverse bars 22 are divided into two parts, each transverse bar 22 is equidistantly arranged on one side of the plurality of stirrups 21, and a transverse bar 22 is commonly arranged on the inner sides of the plurality of barbs 211 on the same side and on the same horizontal line. The transverse bars 22 are fixed to the stirrups 21 and the barbs 211 on the stirrups 21 by steel bar binding.

[0027] A plurality of bracing bars 23 are arranged in groups of two at the intersection of the stirrups 21 and the transverse bars 22 excluding the two ends of the stirrups 21. The two bracing bars 23 in the same group are respectively located at the two diagonals of the intersection of the stirrups 21 and the transverse bars 22. The bracing bars 23 are perpendicular to the transverse bars 22 and the two ends are respectively perpendicular to the two sides of the stirrups 21. The bracing bars 23 and the transverse bars 22 and stirrups 21 in contact therewith are fixed by steel bar binding.

[0028] The reinforcement assembly 3 includes a long bolt 31 and an expansion sleeve 32 .

[0029] The long bolts 31 are inserted into the corresponding threaded holes 1201 and the reserved holes 1102 , and pass through the two insulation boards 11 at the same time.

[0030] The expansion sleeve 32 includes a threaded tube 321 and an expansion tube 322. One end of the threaded tube 321 is fixedly connected to one end of the expansion tube 322. An internal thread is provided on the inner side of the threaded tube 321. An annular boss 3221 is provided inside the expansion tube 322. The surface of the annular boss 3221 is inclined and smoothly connected to the inner side of the threaded tube 321. A plurality of interrupting grooves 3220 are provided on the expansion tube 322. A plurality of small protrusions are provided on the outer wall of the expansion sleeve 32. The expansion sleeve 32 is made of pure iron.

[0031] The provision of the double-layer insulation board 11 improves the insulation performance of the entire exterior wall fire protection and insulation system, and the addition of a steel frame assembly 2 between the two insulation boards 11 can effectively enhance the structural strength of the exterior wall fire protection and insulation system.

[0032] It is understandable that the stirrups 21 can be made by bending steel bars, and stirrups 21 that meet the requirements can be mass-produced only by equipment such as a bending machine. When the steel frame assembly 2 is made, adjacent stirrups 21 are set in reverse, which can avoid the disadvantage that one side of the steel frame assembly 2 is easily deformed due to the open end of the stirrups 21. The stirrups 21, transverse bars 22 and bracing bars 23 included in the steel frame assembly 2 can all be processed by common steel structure processing equipment, so mass production of the steel frame assembly 2 is convenient to a certain extent.

[0033] By opening a groove 1101 on the insulation board 11 and adding a reinforcing rib 12 in the groove 1101, the long bolt 31 passes through the insulation board 11 and engages with the reinforcing rib 12. The pressure generated is evenly distributed on the insulation board 11 by the reinforcing rib 12, thereby preventing the insulation board 11 from breaking due to excessive engagement pressure of the long bolt 31. The thickened boss 111 added to the insulation board 11 can further enhance the structural rigidity of the insulation board 11, and the reinforcing rib 12 is embedded in the groove 1101, so that the surface of the insulation board 11 is smooth, which is convenient for applying materials such as adhesives or plastering mortar.

[0034] When the exterior wall fire protection and thermal insulation system is fixedly installed on the structural wall base, a hole can be drilled on the wall through the reserved hole 1102 in advance, and then the expansion sleeve 32 can be inserted into the hole, and then the exterior wall fire protection and thermal insulation system can be attached to the wall, and the long bolt 31 can be passed through the corresponding threaded hole 1201 and the reserved hole 1102, and then threadedly engaged with the expansion sleeve 32. When the long bolt 31 is screwed into the expansion sleeve 32, under the extrusion of the end of the long bolt 31, the annular boss 3221 expands outward, driving the entire expansion tube 322 to expand, and squeeze each other with the hole on the structural wall base, so that the exterior wall fire protection and thermal insulation system can be stably fixed on the structural wall base.

[0035] Since the surface of the expansion sleeve 32 is provided with a number of small protrusions, when inserted into the hole on the base surface of the structural wall, it rubs against the inner wall of the hole, causing the outer side coating of the small protrusion to be scratched off. Therefore, after the installation of the exterior wall fire protection and insulation system is completed, the outer surface of the expansion sleeve 32 will rust in a short time, causing the outer surface of the expansion sleeve 32 to expand and be more tightly squeezed against the inner wall of the hole on the base surface of the structural wall.

[0036] The construction method of the exterior wall fire protection and insulation system, the specific steps are as follows: S1. Pretreatment of the base layer: clean the base surface of the structural wall, remove materials that hinder bonding, and check the flatness of the wall surface; S2. Pre-embed longitudinal reinforcement: embed a number of longitudinal reinforcements at equal distances on the bottom surface at a distance greater than 100 mm and less than 300 mm from the base surface of the structural wall; S3, installation of the external wall fire protection and thermal insulation system, applying adhesive on the outer side of one of the insulation boards 11 of the external wall fire protection and thermal insulation system, the thickness of the adhesive application is ≥10mm, and the adhesive is flattened and scraped into strips with a scraper to ensure that the bonding area is ≥80%, and the insulation board 11 coated with adhesive faces the base surface of the structural wall, and the longitudinal reinforcement passes through the steel frame assembly 2 until the external wall fire protection and thermal insulation system is installed in contact with the ground, and then the external wall fire protection and thermal insulation system is installed and attached to the base surface of the structural wall; S4, installation of the reinforcement component 3, the reinforcement component 3 passes through the two insulation boards 11 and the steel frame component 2 therein and is fixedly installed on the base surface of the structural wall; S5, concrete reinforcement, pouring concrete into the steel frame assembly 2 until the concrete completely fills the interior of the steel frame assembly 2.

[0037] By pre-embedding longitudinal reinforcement and pouring concrete into the steel frame assembly 2 after installing the exterior wall fire protection and thermal insulation system, the entire exterior wall fire protection and thermal insulation system can be stably installed on the exterior wall. After the concrete solidifies, the steel frame assembly 2 forms a steel-concrete wall to separate the two insulation boards 11, thereby further improving the thermal insulation performance and the fire resistance of the entire exterior wall fire protection and thermal insulation system. The overall structural strength is also greatly improved, thereby greatly improving the structural strength of the exterior wall.

[0038] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the scope of the present invention through the above description. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. External wall fire protection and thermal insulation system, characterized by: It comprises two insulation components and a steel frame component, wherein the two insulation components are respectively arranged on both sides of the steel frame component; The steel frame assembly includes a plurality of stirrups and a plurality of transverse bars; A plurality of stirrups are arranged equidistantly, one side of each stirrup is provided with an open end, the open ends of two connected stirrups are arranged in opposite directions, and the two ends of the stirrups at the open ends are both arranged in a barb shape; The plurality of transverse bars are divided into two parts, each of which is equidistantly arranged on one side of the plurality of stirrups, and a common transverse bar is arranged on the inner sides of the plurality of barbs on the same side and on the same horizontal line, and the transverse bars are fixed to the stirrups and the barbs on the stirrups by steel bar binding.

2. The exterior wall fire protection and thermal insulation system according to claim 1, characterized in that: The steel frame assembly includes a plurality of bracing bars; A plurality of the bracing bars are arranged in groups of two at the intersection of the stirrups and the transverse bars excluding the two ends of the stirrups. The two bracing bars in the same group are respectively located at two diagonals of the intersection of the stirrups and the transverse bars, and the bracing bars are arranged perpendicular to the transverse bars and the two ends are respectively perpendicular to the two sides of the stirrups. The bracing bars and the transverse bars and stirrups in contact therewith are fixed by steel bar binding.

3. The exterior wall fire protection and thermal insulation system according to claim 1, characterized in that: The heat preservation component comprises a heat preservation plate, on which two groups of reserved holes are symmetrically opened, each group of the reserved holes comprises a plurality of the reserved holes, and the plurality of the reserved holes in each group are arranged equidistantly.

4. The exterior wall fire protection and thermal insulation system according to claim 3, characterized in that: A plurality of rows of thickened bosses are equidistantly arranged on one end surface of the insulation board. The thickened bosses are located at positions where the reserved holes are opened on the insulation board, and the reserved holes penetrate the insulation board and the thickened bosses.

5. The exterior wall fire protection and thermal insulation system according to claim 4, characterized in that: The thermal insulation assembly includes a plurality of reinforcing ribs; The insulation board is provided with a plurality of grooves, the orientation of the grooves is perpendicular to the orientation of the thickened bosses and is located at the positions where the reserved holes are provided on the insulation board; The reinforcing rib is embedded in the groove, and a plurality of threaded holes are formed on the reinforcing rib. When the reinforcing rib is embedded in the groove, the threaded holes thereon correspond to the reserved holes one by one.

6. The exterior wall fire protection and thermal insulation system according to claim 5, characterized in that: It comprises a reinforcement component, which comprises a long bolt. The long bolt is passed through the corresponding threaded holes and the reserved holes and passes through the two insulation boards at the same time.

7. The exterior wall fire protection and thermal insulation system according to claim 6, characterized in that: The reinforcement component includes an expansion sleeve, and the expansion sleeve includes a threaded tube and an expansion tube. One end of the threaded tube is fixedly connected to one end of the expansion tube. An internal thread is provided on the inner side of the threaded tube. An annular boss is provided inside the expansion tube. The surface of the annular boss is inclined and smoothly connected to the inner side of the threaded tube. A plurality of interruption grooves are provided on the expansion tube.

8. The exterior wall fire protection and thermal insulation system according to claim 7, characterized in that: A plurality of small protrusions are arranged on the outer side wall of the expansion sleeve, and the expansion sleeve is made of pure iron.

9. The construction method of the exterior wall fire protection and insulation system, the specific steps are as follows: S1. Pretreatment of the base layer: clean the base surface of the structural wall, remove materials that hinder bonding, and check the flatness of the wall surface; S2. Pre-embed longitudinal reinforcement: embed a number of longitudinal reinforcements at equal distances on the bottom surface at a distance greater than 100 mm and less than 300 mm from the base surface of the structural wall; S3. Installation of the external wall fire protection and thermal insulation system: Apply adhesive on the outer side of one of the insulation boards of the external wall fire protection and thermal insulation system, with the thickness of the adhesive applied being ≥10mm, and use a scraper to flatten the adhesive into strips to ensure that the bonding area is ≥80%. Place the insulation board coated with adhesive facing the base surface of the structural wall, and pass the longitudinal reinforcement through the steel frame assembly until the external wall fire protection and thermal insulation system is installed in contact with the ground, and then install the external wall fire protection and thermal insulation system in affixed to the base surface of the structural wall; S4, installation of reinforcement components, the reinforcement components are fixedly installed through two insulation boards and the steel frame components therein and the base surface of the structural wall; S5. Concrete reinforcement: pour concrete into the steel frame assembly until the concrete completely fills the interior of the steel frame assembly.

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