Setting method of fireproof isolation belt for heat preservation engineering of large indoor ski field

Abstract

The invention relates to the field of house buildings, and discloses a large indoor ski field thermal insulation engineering fireproof isolation belt setting method which comprises the following steps: S1, three-dimensional plane arrangement: positioning and typesetting fireproof isolation belts and fireproof isolation belt columns; s2, keels are installed, specifically, vertical keels and transverse keels are installed to serve as fireproof isolation belt columns, the vertical keels are perpendicular to the ground, the transverse keels are parallel to the snowways, and the vertical keels and the transverse keels are connected in a welded mode; s3, heat preservation and fireproof isolation belt installation, wherein the rock wool boards are fixed to fireproof isolation belt columns through mushroom nails, and the abutted seams are coated with sealant; a gap of 30 mm is reserved between the rock wool board and the PIR composite board; and S4, partition arrangement is conducted, specifically, partitions are arranged at the vertical keels and the transverse keels every 50 M, and a continuous fireproof isolation belt is formed. The PIR insulation board with the combustion performance of B1 grade and the special rock wool board with the combustion performance of A grade for fireproof isolation are scientifically combined, so that the dual functions of insulation and fire prevention are successfully realized.

Description

Technical Field

[0001] The invention relates to the technical field of house construction, in particular to a method for setting a fireproof isolation zone of a thermal insulation project of a large indoor ski resort. Background Art

[0002] As a special type of building, large indoor ski resorts have strict control over indoor temperature and humidity, as well as high requirements for building fire protection performance, making insulation and fire protection technology a key link in design and construction.

[0003] At present, the temperature of indoor ski resorts is usually maintained in a low temperature and humid cold environment of -3℃ to -5℃. Although traditional insulation materials (such as rock wool and glass wool) have good insulation performance, due to their hygroscopicity, they are prone to absorb water and expand in a humid and cold environment, which greatly reduces the insulation performance and may even affect the safety of the building structure due to increased deadweight. At the same time, since ski resorts need to meet Class A fire protection requirements, these traditional insulation materials often have difficulty in taking into account both fire protection and insulation performance, resulting in greater technical challenges in design and construction.

[0004] Traditional fire isolation belt designs usually use a single fireproof material, such as phenolic foam, rock wool or foamed cement. These materials have their own advantages in fire resistance, but they show obvious shortcomings when faced with the complex structural design and strict energy efficiency requirements of large ski resorts: A single material is prone to failure after absorbing moisture in a wet and cold environment, resulting in a decrease in fire resistance; It is difficult to balance the functions of heat preservation and fire prevention, and the traditional fire isolation belt design lacks adaptability to the special scenes of ski resorts; The existing materials lack effective integration with the building structure during the construction process, resulting in unstable overall partition performance.

[0005] In addition, the large space characteristics of ski resorts place higher demands on fire separation technology. The current fire separation design is mainly applied to ordinary buildings, which is difficult to meet the needs of large-span and multi-intersection structures in ski resorts. Traditional fire isolation belts are usually designed as simple plate or strip structures, which cannot provide reliable fire separation functions in large-span walls or ceilings over 50 meters. Therefore, there is a technical gap in the setting of fire isolation belts in large indoor ski resorts. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a method for setting up a fire isolation zone for a large indoor ski resort insulation project, which solves the problem that the prior art is difficult to take into account both insulation and fire protection functions in a humid and cold environment, and the problem that the traditional fire isolation zone has insufficient structural stability and durability.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for setting a fire isolation zone for a large indoor ski resort insulation project, comprising the following steps: S1. Three-dimensional plane layout: positioning and layout of fire isolation zones and fire isolation zone columns; S2. Installation of keels: Install vertical keels and transverse keels as fire isolation belt columns. The vertical keels are perpendicular to the ground, and the transverse keels are parallel to the snow track, and they are connected by welding; S3. Installation of thermal insulation and fireproof isolation belt: Use mushroom nails to fix the rock wool board on the fire isolation zone column and apply sealant on the joints; A 30mm gap is left between the rock wool board and the PIR composite board and filled with polyurethane foam material; Install the color steel cover plate on the cold zone side, cover the warm zone side with waterproof membrane, and fix them with self-drilling screws; S4. Partition setting: Partitions are set at the vertical and horizontal keels every 50 meters to form a continuous fire isolation zone.

[0008] Preferably, the rock wool board has a thickness of 240 mm, a thermal conductivity of ≤0.038 W / m·K, a density of not less than 135 kg / m³, a moisture absorption rate of ≤1.0%, and a hydrophobicity of ≥98%.

[0009] Preferably, the PIR composite board has a thickness of 150 mm, a thermal conductivity of ≤0.024 W / m·K, a compressive strength of not less than 0.15 MPa, a water absorption rate of less than 1%, and a bulk density of not less than 42 kg / m³.

[0010] Preferably, the waterproof membrane is a 1.5 mm thick TPO self-adhesive membrane, both sides of the membrane extend to 50 mm, and are fixed by φ3.9*19 self-drilling screws.

[0011] Preferably, the polyurethane foam material is used to fill the 30 mm gap between the PIR composite board and the rock wool board and seal the joint position.

[0012] Preferably, the mushroom nails are through-going M12 countersunk nylon bolts, which are used to fix the rock wool board on the fire isolation zone column, and the exposed part is closed by a color steel sleeve.

[0013] Preferably, the fire isolation zone column is made of hot-dip galvanized steel plate with a thickness of 0.8 mm, a yield strength of not less than 280 MPa, and a galvanizing amount of AZ150 g / m².

[0014] Preferably, in the step S4, the partitions every 50 meters are fixed by rock wool boards and fire isolation zone columns through mushroom nails, and the partition width is not less than 2.0 meters.

[0015] The present invention provides a method for setting a fireproof isolation zone for a large indoor ski resort insulation project. It has the following beneficial effects: 1. The present invention successfully achieves the dual functions of thermal insulation and fire prevention by scientifically combining a PIR insulation board with a combustion performance level of B1 and a special rock wool board for fire isolation with a combustion performance level of A. Through this material combination design, the present invention not only takes into account the thermal insulation performance, but also meets the strict requirements of building fire safety, overcomes the problem of the compatibility of fireproof materials and thermal insulation materials in traditional technologies, and provides a reliable reference for the fire prevention and thermal insulation design of tall and large space buildings.

[0016] 2. The present invention adds hot-dip galvanized steel plate packaging on both sides of the rock wool board specially used for fire isolation, which significantly enhances the overall strength and durability of the isolation zone. At the same time, after the rock wool board is packaged, it not only enhances the compressive strength and structural stability of the rock wool board, but also avoids the moisture absorption problem of the rock wool board caused by the intrusion of external water vapor, thereby maintaining the fireproof and thermal insulation properties of the rock wool board.

[0017] 3. The present invention significantly improves the overall fire isolation performance by setting a fire isolation zone with a width of not less than 2.0 meters on the walls and ceilings of the ski resort, using a scientific combination of rock wool boards and PIR insulation boards, and performing fire separation design at the keel every 50 meters. In addition, the joints are filled with polyurethane foam materials to effectively avoid the cold bridge phenomenon and further improve the insulation effect. This method not only meets the high standards of ski resort buildings for dual needs of insulation and fire protection, but also provides a feasible technical reference for similar large-space venues. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the method steps of the present invention; Figure 2 This is a schematic diagram of the installation of the rock wool board structure of the present invention; Figure 3 It is a schematic diagram of the positioning and arrangement of the plane fire isolation zone and keel of the present invention; Figure 4 It is a schematic diagram of the front view arrangement of the plane fire isolation zone and the keel positioning of the present invention; Figure 5 It is a schematic diagram of the local arrangement of the plane fire isolation zone and keel positioning of the present invention; Figure 6 It is a schematic diagram of three-dimensional modeling of the present invention; Figure 7 It is a schematic diagram of the fire isolation zone column structure of the present invention.

[0019] Among them, 1. Rock wool board; 2. Color steel sleeve; 3. Waterproof membrane; 4. Fire isolation belt column; 5. PIR composite board; 6. Polyurethane foam; 7. Color steel cover plate; 8. Mushroom nails. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] The embodiment of the present invention provides a method for meeting the dual needs of fire prevention and thermal insulation of a large indoor ski resort. The present invention provides a method for setting a fire isolation zone for a thermal insulation project of a large indoor ski resort, by combining a rock wool board 1 and a PIR composite board 5, and arranging and installing them to achieve fire isolation and efficient thermal insulation.

[0022] Arrangement of fire isolation belt: Fire isolation belt is arranged in the walls and ceilings of the ski resort, and the design is as follows: Wall layout: longitudinal fire isolation zones are set up every 50 meters on the wall of the ski resort; the fire isolation zone is 2.0 meters wide, arranged continuously, and runs through the entire wall. The wall fire isolation zone consists of a rock wool board 1 and a vertical keel fire isolation zone column 4.

[0023] Ceiling layout: Set up horizontal fire isolation zones every 50 meters in the ceiling structure.

[0024] The width of the transverse isolation zone is 2.0 meters, and it is composed of a transverse keel fire isolation zone column 4 and a rock wool board 1; the ceiling fire isolation zone is connected with the wall isolation zone at the junction to form a complete fire isolation network.

[0025] Fire partition structure: At the junction of the wall and the ceiling, a continuous rock wool board 1 is set as the junction fire isolation zone, which is fixed to the fire isolation zone column 4 by mushroom nails 8. The arrangement of the fire partition ensures that a separation unit is formed every 50 meters to further prevent the spread of fire.

[0026] Please see attached Figure 1 , installation method of fire isolation belt: Please see attached Figure 3 -Attached Figure 6 , S1: Plan layout and modeling optimization: Use CAD software to draw the plan layout of the ski resort and determine the specific locations of the fire isolation zone walls, ceilings and junctions. Use Tekla modeling software to build a three-dimensional model to optimize the arrangement of the fire isolation zone columns 4 to ensure that the location and spacing of each partition meet the 50-meter requirement.

[0027] Please see attached Figure 2 , Step 2: Installation of fire isolation belt column 4: Material selection: The fire isolation belt column 4 is made of hot-dip galvanized steel plate with a thickness of 0.8mm, a yield strength of not less than 280MPa, and a galvanizing amount of AZ150g / m².

[0028] Installation of keels: vertical keels are installed as wall isolation strip columns, with their bottom ends fixed to the ski resort ground and their tops connected to the ceiling structure; transverse keels are installed in the ceiling structure and welded to the vertical keels to form a complete frame.

[0029] Please see attached Figure 2 , Step 3: Fixing of rock wool board 1: Material specifications: Rock wool board 1 thickness is 240mm, thermal conductivity ≤ 0.038W / m·K, density not less than 135kg / m³.

[0030] Fixing method: Use M12 countersunk nylon mushroom nails 8 to fix the rock wool board 1 to the fire isolation zone column 4; after the mushroom nails penetrate the rock wool board 1, apply sealant to the exposed part and seal it with a color steel sleeve 2 to prevent air leakage.

[0031] Please see attached Figure 2 , Step 4: Installation of PIR composite panel 5: Material specifications: PIR composite board thickness is 150mm, thermal conductivity ≤0.024W / m·K, water absorption ≤1%.

[0032] Installation method: Leave a 30mm gap between the rock wool board 1 and the PIR composite board 5; fill the gap with polyurethane foam material 6 to eliminate the cold bridge phenomenon and improve the thermal insulation performance. Use polyurethane foam material 6 to fill the joints to ensure that there is no gap. Cover the cold zone side with a color steel cover plate 7, and cover the warm zone side with a 1.5mm thick TPO self-adhesive waterproof membrane 3, extending to 50mm on both sides, and fix with φ3.9*19 self-drilling screws.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for setting up a fire isolation zone for a large indoor ski resort insulation project, characterized in that: The following steps are involved: S1. Three-dimensional plan layout: positioning and layout of the fire isolation zone and fire isolation zone columns (4); S2. Installation of keels: installing vertical keels and transverse keels as fire isolation zone columns (4), with the vertical keels being perpendicular to the ground and the transverse keels being parallel to the snow track, and connected by welding; S3. Installation of thermal insulation and fireproof isolation belt: Use mushroom nails (8) to fix the rock wool board (1) on the fire isolation zone column (4), and apply sealant to the joints; A 30 mm gap is left between the rock wool board (1) and the PIR composite board (5), and is filled with polyurethane foam material (6); Install a color steel cover plate (7) on the cold zone side, cover the warm zone side with a waterproof membrane (3), and fix them with self-drilling screws; S4. Partition setting: Partitions are set at the vertical and horizontal keels every 50 meters to form a continuous fire isolation zone.

2. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The rock wool board (1) has a thickness of 240 mm, a thermal conductivity of ≤0.038 W / m·K, a density of not less than 135 kg / m³, a moisture absorption rate of ≤1.0%, and a hydrophobicity of ≥98%.

3. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The PIR composite board (5) has a thickness of 150 mm, a thermal conductivity of ≤0.024 W / m·K, a compressive strength of not less than 0.15 MPa, a water absorption rate of less than 1%, and a bulk density of not less than 42 kg / m³.

4. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The waterproofing membrane (3) is a 1.5 mm thick TPO self-adhesive membrane, with both sides of the membrane extending to 50 mm and fixed by φ3.9*19 self-drilling screws.

5. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The polyurethane foam material (6) is used to fill the 30 mm gap between the PIR composite board (5) and the rock wool board (1) and to seal the joint.

6. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The mushroom nail (8) is a through-type M12 countersunk nylon bolt, which is used to fix the rock wool board (1) on the fireproof isolation zone column (4) and to close the exposed part through the color steel sleeve (2).

7. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: The fire isolation zone column (4) is made of hot-dip galvanized steel plate with a thickness of 0.8 mm, a yield strength of not less than 280 MPa, and a galvanizing amount of AZ150 g / m².

8. The method for setting a fireproof isolation zone for a large indoor ski resort insulation project according to claim 1, characterized in that: In the step S4, the partitions every 50 meters are fixed by the rock wool board (1) and the fire isolation zone column (4) through mushroom nails (8), and the partition width is not less than 2.0 meters.

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