High-altitude sunshade film and sunshade film hoisting construction method

Abstract

The present invention relates to a high-altitude sunshade film and a sunshade film hoisting construction method, which belongs to the field of sunshade film technology. The high-altitude sunshade film includes a plurality of spliced ​​films, which form a circular film after splicing. A gap that matches the steel structure is provided between adjacent spliced ​​films. The present invention utilizes a plurality of spliced ​​films to form a high-altitude sunshade film, avoiding customized sunshade films. The splicing gaps are connected to the steel frame, presenting an overall effect in terms of vision and appearance; thereby optimizing the installation process, fundamentally solving the traditional construction method of first installing the steel frame and then tensioning the sunshade film. The overall hoisting not only facilitates the quality control of batch processing, but also solves the problem of a long traditional installation period. On-site sunshade film production only requires the use of a fixed mold for tensioning production; speeding up the overall progress of installation and hoisting.

Description

Technical Field

[0001] The invention relates to the technical field of sunshade films, in particular to a high-altitude sunshade film and a sunshade film hoisting construction method. Background Art

[0002] Architectural sunshade films are already widely used in developed countries. In many European countries, not only are public buildings widely equipped with sunshades, but almost every residential home also has window film installed. With the continuous growth of national comprehensive strength and the diversification of decoration and renovation, driven by technological innovation, decorative materials and techniques are also undergoing subtle changes. Modern architectural glass curtain walls occupy an increasingly large proportion of building surface area. In recent years, the installation of sunshade films has become increasingly common in public decoration projects. The increased light and transparency have also led to increased cooling and heating energy consumption. In summer, strong solar radiation penetrates the glass curtain walls, causing excessive light intensity and a significant increase in temperature, increasing air conditioning energy consumption. This increased air conditioning energy consumption, in turn, exacerbates the urban heat island effect, making urban buildings even hotter outside. The best solution to this dilemma is to install appropriate sunshade facilities.

[0003] The current maximum width of sunshade membranes exceeds conventional sizes and needs to be customized, which has a significant impact on construction costs and duration. During the tensioning process of the sunshade membranes, uneven prestressing can easily cause deformation of the steel frame. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-altitude sunshade film and a sunshade film hoisting construction method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high altitude sunshade film, comprising:

[0007] A plurality of spliced ​​membranes are spliced ​​together to form a circular membrane, and gaps are provided between adjacent spliced ​​membranes to match the steel structure.

[0008] As a further technical solution of the present invention, the splicing membrane is a PTFE membrane material with a thickness of 3 μm.

[0009] As a further technical solution of the present invention, the PTFE membrane material is composed of glass fiber base cloth and double-sided polytetrafluoroethylene.

[0010] A sunshade film hoisting construction method comprises the following steps:

[0011] Construction preparation;

[0012] On-site staking;

[0013] Membrane material production and assembly;

[0014] The sunshade film is hoisted and fixed.

[0015] As a further technical solution of the present invention, the construction preparation is: prepare a feasible construction plan, implement it after review and approval by relevant personnel, and conduct safety and technical briefings for on-site construction personnel; deepen the drawings based on the design drawings and the actual situation on site, measure the prestressed connecting rods under the steel structure, measure the size of the sunshade film from the bottom of the steel structure to ensure that after installation is completed, the size of the bottom of the steel structure is 750mm away from the finished surface of the sunshade film, and the spacing is 500mm after the sunshade film is installed; the finished surface of the sunshade film is at an angle of 15° to the horizontal plane.

[0016] As a further technical solution of the present invention, the on-site layout is as follows: determine the installation reference axis, take the center of the steel structure as the original reference point, use a total station to lay out the position of the cantilevered secondary beam and the clamp fixing point, and mark it on the steel structure to facilitate the fixation of the cantilevered secondary beam and the clamp; after the on-site layout is completed, it is reviewed in combination with the drawings to form a closed construction layout drawing.

[0017] As a further technical solution of the present invention, the membrane material is made as follows: the sunshade membrane adopts 3um PTFE membrane material, which is composed of glass fiber base cloth and double-sided polytetrafluoroethylene; during the assembly process of the sunshade membrane, the membrane material joint position is first fixed with a tensioning clamp to ensure that the membrane material joint is connected with the keel, and then the tensioning clamp is used to tension from the gap to both sides, and the prestress is appropriately

[0018] As a further technical solution of the present invention, the sunshade film is hoisted and fixed as follows:

[0019] Set up four lifting fixed points on the sunshade film: the first lifting point, the second lifting point, the third lifting point and the fourth lifting point. Before lifting, use steel wire ropes to connect the lifting fixed points in series to ensure uniform force during the lifting process.

[0020] Before lifting, the steel wire ropes of the first and second cranes are fixed to the first and third lifting points respectively. During lifting, the second crane lifts the third lifting point, and the first crane is also lifted synchronously but without force. To prevent the sunshade film from flipping in the air, an anti-wind rope is added on each side of the sunshade film.

[0021] After the second crane reaches the predetermined position, it flips with the third crane as the center. The first crane starts to lift the sunshade film to a horizontal position, so that the sunshade film flips over the prestressed connecting rod. During the flipping process, two spider cars assist the sunshade film in flipping direction to avoid instability during the flipping process.

[0022] After the sunshade film is lifted to a horizontal position, the fourth crane is fixed to the end of the sunshade film. At this time, the first and fourth cranes are lifted at the same time, so that the wire rope of the second crane is in a relaxed state. The third crane is fixed to the third hanging point on the sunshade film with the assistance of the spider car. After the hanging point is fixed, the first and second cranes are released at the same time, so that they can be moved horizontally to the predetermined installation position under the action of gravity.

[0023] After reaching the equilibrium state, the first crane, the third crane and the fourth crane are lifted synchronously to ensure that the sunshade film reaches the predetermined installation position. The sunshade film is fixed according to the pre-fixed hanging point position. The distance between adjacent sunshade films is 500mm and they are connected with fixed-length screw rods.

[0024] As a further technical solution of the present invention, the first crane is set at the center point of the steel structure, mainly controlling the flipping of the sunshade film in the air; the second crane is set 300 mm from the right side of the prestressed rod, and is used as the main lifting point; the third crane is set 300 mm from the right side of the prestressed rod, and mainly plays the role of fixing the alternating body during the translation of the sunshade film; the fourth crane is set at the end of the pre-installed position of the sunshade film, and mainly plays the role of fixing the alternating body during the translation of the sunshade film.

[0025] Compared with the existing technology, the beneficial effects of the present invention are: using multiple pieces of splicing membranes to form a high-altitude sunshade membrane, avoiding customized sunshade membranes, and the splicing gaps are connected with the steel frame, presenting an overall effect in terms of vision and appearance; thereby optimizing the installation process, and fundamentally solving the traditional construction method of first installing the steel frame and then tensioning the sunshade membrane. The overall hoisting not only facilitates the quality control of batch processing, but also solves the problem of long traditional installation period. On-site sunshade membrane production only requires the use of fixed molds for tensioning production; the overall progress of installation and hoisting is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the high-altitude sunshade film;

[0027] Figure 2 It is a structural diagram of the existing sunshade film;

[0028] Figure 3 It is a structural diagram of the steel structure;

[0029] Figure 4 This is a structural diagram of the high-altitude sunshade film when it is hoisted;

[0030] Figure 5 This is a structural diagram of the high-altitude sunshade film after hoisting;

[0031] Figure 6 This is a real picture of the high-altitude sunshade film after hoisting.

[0032] In the figure: 1-splicing membrane, 11-first hanging point, 12-second hanging point, 13-third hanging point, 14-fourth hanging point, 21-first diaphragm, 22-second diaphragm, 3-steel structure, 31-first crane, 32-second crane, 33-third crane, 34-fourth crane. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] The embodiment of the present invention is implemented as follows: Figure 1 The high altitude sunshade film shown includes:

[0035] A plurality of spliced ​​membranes 1 are spliced ​​together to form a circular membrane, and gaps are provided between adjacent spliced ​​membranes 1 to match the steel structure 3 .

[0036] In practical application, the present invention divides the high-altitude sunshade film into multiple splicing films 1 and optimizes the size. After optimization, the maximum splicing film 1 is 3.5 meters wide and 8.9 meters long. The manufacturer provides a conventional width of 3.0 meters and a customized 3.5-meter-wide sunshade film. Figure 2 As shown, it includes a first diaphragm 21 and a second diaphragm 22 of different specifications, and its cost and construction period will increase significantly. The sunshade film splicing method is used to avoid custom sunshade film, and the splicing gap is connected with the steel frame, which presents an overall effect in terms of vision and appearance. Specifically, the original data of the on-site re-measurement is used for CAD lofting to ensure that the position of the sunshade film steel frame and the membrane material is consistent (the seam width is 30mm, and the steel keel width is 40mm); preferably, the splicing membrane 1 is a 3um thick PTFE membrane material, and the PTFE membrane material is composed of glass fiber base cloth and double-sided polytetrafluoroethylene, so that The tensile strength of the membrane material is 2800N / 5cm in the warp direction and 2500N / 5cm in the weft direction. The high-altitude sunshade membrane and the sunshade membrane keel are fixed to form a whole by prestressed tension. The high-altitude sunshade membrane is located above the 3 prestressed connecting rods of the steel structure, thereby optimizing the installation process and fundamentally solving the traditional construction method of first installing the steel frame and then tensioning the sunshade membrane. The overall hoisting not only facilitates the quality control of batch processing, but also solves the problem of long traditional installation period. The on-site sunshade membrane production only needs to use a fixed mold for tensioning production; it speeds up the overall progress of installation and hoisting.

[0037] This embodiment provides a sunshade film hoisting construction method, which includes the following steps.

[0038] Construction preparation: Prepare a feasible construction plan, implement it after review and approval by relevant personnel, and provide safety and technical explanations to on-site construction personnel; deepen the drawings based on the design drawings and the actual site conditions, measure the prestressed connecting rods below the steel structure 3, and measure the distance between the sunshade film and the bottom of the steel structure 3 to ensure that the bottom of the steel structure 3 is 750mm away from the finished surface of the sunshade film after installation. The distance between the sunshade film and the finished surface is 500mm after installation. The finished surface of the sunshade film is at a 15° angle to the horizontal plane.

[0039] On-site layout: determine the installation reference axis, take the center of steel structure 3 as the original reference point, use a total station to lay out the cantilevered secondary beam and the fixture fixing point position, and mark it on the steel structure 3 to facilitate the fixation of the cantilevered secondary beam and the fixture; after the on-site layout is completed, review it in conjunction with the drawings to form a closed construction layout drawing;

[0040] Membrane production and assembly: The sunshade membrane uses 3um thick PTFE membrane material, which is composed of glass fiber base cloth and double-sided polytetrafluoroethylene. During the assembly process of the sunshade membrane, the membrane joint position is first fixed with a tensioning fixture to ensure that the membrane joint is connected with the keel. Then, the tensioning fixture is used to tension the membrane from the gap to both sides to ensure appropriate prestress.

[0041] Sunshade film hoisting and fixing: four hoisting fixing points, namely the first hoisting point 11, the second hoisting point 12, the third hoisting point 13 and the fourth hoisting point 14, are set on the splicing film 1. Before hoisting, the hoisting fixing points are connected in series with steel wire ropes to ensure uniform force during the hoisting process. Before lifting, the steel wire ropes of the first crane 31 and the second crane 32 are fixed to the first hoisting point 11 and the third hoisting point 13 respectively. When lifting, the second crane 32 lifts the third hoisting point 13, and the first crane 31 is also lifted synchronously but without force. In order to prevent the splicing film 1 from flipping in the air, the two sides of the splicing film 1 are connected. Each adds a wind rope; after the second crane 32 is lifted to a predetermined position, it is turned around with the third crane 33 as the center of the circle, and the first crane 31 starts to lift the splicing membrane 1 to a horizontal position, so that the splicing membrane 1 is turned over to the top of the prestressed connecting rod. During the turning process, two spider cars are used to assist the splicing membrane 1 in turning the direction to avoid instability during the turning process; after the splicing membrane 1 is lifted to a horizontal position, the fourth crane 34 is fixed to the end of the splicing membrane 1, and at this time, the first crane 31 and the fourth crane 34 are lifted at the same time, so that the steel wire of the second crane 32 The rope is in a relaxed state, and the spider car is used to assist in fixing the third crane 33 to the third hanging point 13 on the splicing membrane 1. After the hanging point is fixed, the first crane 31 and the second crane 32 are simultaneously released, so that they can be translated to the predetermined installation position under the action of gravity; after reaching a balanced state, the first crane 31, the third crane 33, and the fourth crane 34 are simultaneously lifted to ensure that the splicing membrane 1 reaches the predetermined installation position, and the splicing membrane 1 is fixed according to the pre-fixed hanging point position. The distance between adjacent splicing membranes 1 is 500mm, and they are connected with fixed-length screw rods. The first hoist 31 is set at the center of the steel structure 3, and is mainly used to control the flipping of the splicing membrane 1 in the air; the second hoist 32 is set at 300mm to the right of the prestressed rod and is used as the main lifting point; the third hoist 33 is set at 300mm to the right of the prestressed rod, and is mainly used to fix the alternating body during the translation of the splicing membrane 1; the fourth hoist 34 is set at the end of the pre-installed position of the splicing membrane 1, and is mainly used to fix the alternating body during the translation of the splicing membrane 1; please refer to the following for details. Figures 3 to 6 .

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high altitude sunshade film, characterized in that: include: A plurality of spliced ​​membranes are spliced ​​together to form a circular membrane, and gaps are provided between adjacent spliced ​​membranes to match the steel structure. The hoisting construction method of the high-altitude sunshade membrane includes the following steps: Construction preparation; On-site staking; Membrane material production and assembly; The sunshade film is hoisted and fixed as follows: Set up four lifting fixed points on the sunshade film: the first lifting point, the second lifting point, the third lifting point and the fourth lifting point. Before lifting, use steel wire ropes to connect the lifting fixed points in series to ensure uniform force during the lifting process. Before lifting, the steel wire ropes of the first and second cranes are fixed to the first and third lifting points respectively. During lifting, the second crane lifts the third lifting point, and the first crane is also lifted synchronously but without force. To prevent the sunshade film from flipping in the air, an anti-wind rope is added on each side of the sunshade film. After the second crane reaches the predetermined position, it flips with the third crane as the center. The first crane starts to lift the sunshade film to a horizontal position, so that the sunshade film flips over the prestressed connecting rod. During the flipping process, two spider cars assist the sunshade film in flipping direction to avoid instability during the flipping process. After the sunshade film is lifted to a horizontal position, the fourth crane is fixed to the end of the sunshade film. At this time, the first and fourth cranes are lifted at the same time, so that the wire rope of the second crane is in a relaxed state. The third crane is fixed to the third hanging point on the sunshade film with the assistance of the spider car. After the hanging point is fixed, the first and second cranes are released at the same time, so that they can be moved horizontally to the predetermined installation position under the action of gravity. After reaching the equilibrium state, the first crane, the third crane and the fourth crane are lifted synchronously to ensure that the sunshade film reaches the predetermined installation position. The sunshade film is fixed according to the pre-fixed hanging point position. The distance between adjacent sunshade films is 500mm and they are connected with fixed-length screw rods.

2. The high altitude sunshade film according to claim 1, characterized in that: The splicing membrane is a PTFE membrane material with a thickness of 3 μm.

3. The high altitude sunshade film according to claim 2, characterized in that: The PTFE membrane material is composed of glass fiber base cloth and double-sided polytetrafluoroethylene.

4. The high altitude sunshade film according to claim 1, characterized in that: The construction preparation for the hoisting construction method of the high-altitude sunshade film is as follows: prepare a feasible construction plan, implement it after review and approval by relevant personnel, and conduct safety and technical briefings for on-site construction personnel; deepen the drawings based on the design drawings and the actual situation on site, measure the prestressed connecting rods under the steel structure, measure the size of the sunshade film from the bottom of the steel structure to ensure that the size of the bottom of the steel structure is 750mm away from the finished surface of the sunshade film after installation, and the spacing is 500mm after the sunshade film is installed; the finished surface of the sunshade film is at an angle of 15° to the horizontal plane.

5. The high altitude sunshade film according to claim 1, characterized in that: The on-site layout in the hoisting construction method of the high-altitude sunshade film is as follows: determine the installation reference axis, use the center of the steel structure as the original reference point, use a total station to lay out the cantilevered secondary beam and the clamp fixing point position, and mark it on the steel structure to facilitate the fixation of the cantilevered secondary beam and the clamp; after the on-site layout is completed, it is reviewed in combination with the drawings to form a closed construction layout diagram.

6. The high altitude sunshade film according to claim 1, characterized in that: The membrane material in the hoisting construction method of the high-altitude sunshade membrane is made as follows: the sunshade membrane adopts a 3um thick PTFE membrane material, which is composed of a glass fiber base cloth and double-sided polytetrafluoroethylene; during the assembly process of the sunshade membrane, a tensioning clamp is first used to fix the joint position of the membrane material to ensure that the membrane material joint is connected with the keel, and then the tensioning clamp is used to tension from the gap to both sides, and the prestress is appropriate.

7. The high altitude sunshade film according to claim 1, characterized in that: The first crane in the hoisting construction method of the high-altitude sunshade film is set at the center point of the steel structure, mainly controlling the flipping of the sunshade film in the air; the second crane is set 300mm to the right of the prestressed rod, used as the main lifting point; the third crane is set 300mm to the right of the prestressed rod, mainly playing the role of fixing the alternating body during the translation of the sunshade film; the fourth crane is set at the end of the pre-installed position of the sunshade film, mainly playing the role of fixing the alternating body during the translation of the sunshade film.

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