A construction method for a steel structure building with a curtain skylight

Abstract

This invention discloses a structure and construction method for a steel-structured skylight with curtain walls, relating to the field of curtain wall construction technology. The overall shape of the skylight is a hyperboloid structure, vertically divided into multiple hyperboloid grids. Each hyperboloid grid includes two single-curved grids, each with a folded surface. The single-curved grids use flat glass panels with a four-sided support structure, and the glass panels are made of photovoltaic glass. Stainless steel gutters are installed between each folded surface of the single-curved grid. This invention employs a hyperboloid grid structure design, combining folded surfaces and single-curved grids to enhance the building's aesthetics and three-dimensionality. The gutters, combined with thermal insulation rock wool, meet drainage requirements and resolve issues of uneven heights and non-parallel spatial relationships between the glass panels, while ensuring thermal insulation performance.

Description

Technical Field

[0001] This invention relates to the field of curtain wall construction technology, and in particular to a curtain wall structure for steel buildings and its construction method. Background Technology

[0002] In modern architectural design, skylight structures not only provide natural light to interior spaces but also need to consider energy conservation, emission reduction, and ventilation. Traditional skylight designs often fail to adequately address these needs and also present issues with structural stability and drainage. Furthermore, with advancements in building technology, the demand for high-performance, multi-functional skylight structures is increasing.

[0003] Existing skylight structures typically employ flat or simple curved designs, lacking sufficient creativity and visual appeal, and are inadequate in terms of drainage, heat insulation, and sealing performance. Furthermore, traditional skylight construction methods are often cumbersome, inefficient, and struggle to guarantee construction quality.

[0004] Therefore, developing a steel structure skylight construction that combines modern architectural aesthetics, structural stability, environmental protection and energy conservation, and ease of construction has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a steel structure building curtain skylight structure and its construction method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A steel structure building curtain skylight construction, wherein the overall shape of the curtain skylight is a hyperboloid structure;

[0008] The overall hyperboloid structure of the skylight is divided into multiple hyperboloid grids by vertical squaring. Each hyperboloid grid includes two single-curved grids. Each single-curved grid is provided with a folded surface. The single-curved grid is made of flat glass panel with a four-sided support structure. The glass panel is made of photovoltaic glass. Stainless steel gutters are provided between each folded surface of the single-curved grid.

[0009] The skylight also includes:

[0010] The main keel is a simply supported beam structure. One end of the main keel is fixed and hinged, and the other end is a telescopic sliding hinge.

[0011] Secondary keel, the secondary keel is a simply supported beam structure, one end of the secondary keel is fixedly hinged, and the other end is slidably hinged;

[0012] The curtain wall columns are made of aluminum alloy profiles with fluorocarbon coating on the surface.

[0013] The curtain wall beams are made of aluminum alloy with a fluorocarbon coating.

[0014] The column connectors are made of angle steel with a hot-dip galvanized surface treatment.

[0015] The concealed frame pressure block is made of aluminum alloy profile, is evenly spaced, and has a fluorocarbon coating on the surface.

[0016] Preferably, thermal insulation rock wool is installed between the bottom of the stainless steel gutter and the main steel structure, and a stainless steel grille is installed on the top of the stainless steel gutter; the curtain wall beams and glass panels are connected by aluminum profiles, and a sealing strip is installed between the aluminum profiles of the two glass panels.

[0017] Preferably, the skylight further includes:

[0018] The window can be opened to a maximum angle of 70 degrees.

[0019] The window opener is an electric synchronous chain window opener. Each openable window is equipped with four window openers. The window opener thrust is not less than 650N and must meet the normal opening and closing requirements of the openable window.

[0020] The locking structure adopts an electronically driven multi-point locking device, and the spacing between the electronic multi-point locks is no more than 500mm.

[0021] Hinges are installed on the operable windows. The hinges are made of duplex stainless steel and there are no fewer than three hinges for each operable window.

[0022] Preferred method for constructing the skylight / curtain structure in a steel building includes the following steps:

[0023] S1: Construction preparation, including preparing installation tools and setting up the operating platform;

[0024] S2: Measure and set out the lines, confirm the control points, and measure the elevation;

[0025] S3: Embedded parts verification, deviation detection of embedded parts, and error adjustment;

[0026] S4: Support installation, and quality inspection after installation;

[0027] S5: Aluminum alloy crossbeam installation; quality inspection shall be carried out after installation.

[0028] S6: Glass panel installation; quality inspection will be conducted after installation.

[0029] S7: Apply adhesive for sealing and clean up any residual adhesive;

[0030] S8: Stainless steel gutter installation;

[0031] S9: Cleaning and acceptance.

[0032] Preferably, when constructing the steel structure building curtain skylight, if the curtain skylight is located in the middle of the roof and the construction is carried out at an elevation of 25m or higher, a roof material stacking point should be set up, and a crane should be used to lift the materials to the roof material stacking point.

[0033] Preferably, during the construction of the steel structure building curtain skylight, two steel scaffolding boards are provided at each manual construction site, and the two ends of the steel scaffolding boards are fixed with ropes; the construction is carried out sequentially by moving the boards, and the connectors and aluminum keels are installed from the lowest point to the highest point in turn, with the connectors and aluminum keels installed at the same time.

[0034] Preferably, during the construction of the steel structure building curtain skylight, before construction, a safety net is fully installed in the bottom area of ​​the curtain skylight, and when installing the glass panel, construction is carried out from the material stacking point to both sides.

[0035] Preferably, the construction method for the steel structure building's skylight curtain structure also includes curtain wall performance testing, specifically including the following steps:

[0036] S11: Preparation before testing: Before testing, the switch on the openable part of the specimen should be turned on no less than 5 times, and then closed tightly.

[0037] S12: Pre-pressurization: Apply 3 pressure pulses before positive and negative pressure detection; the absolute pressure difference is 500Pa, the duration is 3s, the pressurization rate is 100Pa / s, and the detection begins after the pressure difference returns to zero.

[0038] S13: Apply pressure in stages, with each pressure application time not exceeding 10 seconds. First, apply positive pressure in stages, then apply negative pressure in stages; record the detection values ​​of the pressure difference at each stage.

[0039] S14: Measure the additional air infiltration rate q respectively. f Total permeation q z Fixed portion of air infiltration q g .

[0040] Preferably, the method for processing the measured values ​​in the curtain wall performance test is as follows:

[0041] S21: Calculate the average value q of the additional permeation detection values ​​on both sides under a pressure difference of 100Pa during the pressurization and depressurization processes of positive pressure detection. f The average of the two total permeability measurements, q z The average value q of the permeability measurements of two fixed parts g The air permeability q of the integral curtain wall specimen under a pressure difference of 100 Pa is then...t and the amount of air that can be opened q k It can be calculated using the following formula:

[0042] q t =q z -q f

[0043] q k =q t -q g

[0044] The unit for air infiltration is m. 3 / h;

[0045] S22: Test conditions under standard conditions; where temperature α, pressure β, air density δ; and the permeability under standard conditions is the air permeability q1 through the entire curtain wall specimen and the air permeability q2 through the openable portion, in meters. 3 / h;

[0046] q1 = α / β × qt * P / T

[0047] q2=α / β×qk*P / T

[0048] Where: P is the air pressure value of the detection chamber in kPa, and T is the air temperature value of the detection chamber in K;

[0049] S23: Dividing the q1 value by the total area A of the specimen yields the air permeability q1' per unit area of ​​the entire curtain wall specimen under a pressure difference of 100 Pa. 3 / (m 2 .h);

[0050] q1' = q1 / A;

[0051] S24: Dividing q2 by the opening length l of the operable portion of the specimen yields the air permeability q2' per unit opening length of the operable portion of the curtain wall specimen under a pressure difference of 100Pa. 3 / (mh);

[0052] q2' = q2 / A;

[0053] S25: The results of the negative pressure test are also calculated using the same method.

[0054] Preferably, in the curtain wall performance test, the grading index values ​​are determined as follows:

[0055] The calculated value ±q1' or ±q2' under a pressure difference of 100 Pa is converted to the corresponding value ±q under a pressure difference of 10 Pa using the following formula. A The value or ±q1 value is the ±q of the specimen. AThe value and ±q1 value determine the respective levels according to area and seam length, and the most unfavorable level is selected for classification;

[0056] ±q A =±q1' / 4.65

[0057] ±q1=±q2' / 4.65

[0058] Air permeability per unit area of ​​specimen ±q under a pressure difference of 10 Pa A Value, m 3 / (m 2 .h)

[0059] Air permeation rate ± q1 per unit open seam length under a pressure difference of 10 Pa, m 3 / (mh).

[0060] The beneficial effects of this invention are as follows:

[0061] 1. This invention adopts a hyperboloid grid structure design, which combines folded surface and single-curved grid to enhance the building's aesthetics and three-dimensionality; the design of the gutter and its combination with thermal insulation rock wool can meet drainage requirements, while also solving the problems of uneven heights and non-parallel spatial relationships between the glass panels on both sides, and ensuring thermal insulation performance.

[0062] 2. This invention achieves ventilation and smoke extraction functions by configuring operable windows and window openers, thereby enhancing the flexibility and safety of building use; it provides detailed construction steps and methods, including material hoisting, storage, and installation, making the entire construction process clear, efficient, and safe.

[0063] 3. This invention provides a method for testing the performance of curtain walls, ensuring key performance indicators such as the building's airtightness and permeability, and guaranteeing the building's quality and performance. Attached Figure Description

[0064] Figure 1 This is a flowchart illustrating a construction method for a steel structure building skylight with curtains, as proposed in this invention.

[0065] Figure 2 This is a structural diagram of a steel structure building curtain skylight proposed in this invention;

[0066] Figure 3 This is a structural diagram of a stainless steel gutter for a steel structure building curtain skylight proposed in this invention.

[0067] Figure 4 This is a diagram showing the glass panel connection structure of a steel structure building curtain skylight proposed in this invention.

[0068] Figure 5This is a layout diagram of the construction process of a steel structure building curtain skylight proposed in this invention. Detailed Implementation

[0069] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0070] Example 1:

[0071] A steel structure building curtain skylight construction, wherein the overall shape of the curtain skylight is a hyperboloid structure;

[0072] The overall hyperboloid structure of the skylight is divided into multiple hyperboloid grids by vertical squaring. Each hyperboloid grid includes two single-curved grids. Each single-curved grid is provided with a folded surface. The single-curved grid is made of flat glass panel with a four-sided support structure. The glass panel is made of photovoltaic glass. Stainless steel gutters are provided between each folded surface of the single-curved grid.

[0073] The glass panels are basically divided into two categories: width x height = 3000 x 900 = 2.7m². The photovoltaic glass configuration is 8 LOW-E + 16Ar + 8 + 1.52 dedicated PVB + 3 photovoltaic panels (cadmium telluride) + 1.52 dedicated PVB + 8 ultra-clear tempered laminated insulated glass.

[0074] The skylight also includes:

[0075] The main keel is a simply supported beam structure. One end of the main keel is fixedly hinged, and the other end is a telescopic sliding hinge. In this embodiment, the basic span of the main keel is 3000mm.

[0076] The secondary keel is a simply supported beam structure. One end of the secondary keel is fixedly hinged, and the other end is slidably hinged. In this embodiment, the span of the secondary keel is 900mm.

[0077] The curtain wall columns are made of 6063-T6 aluminum alloy profiles with fluorocarbon coating on the surface.

[0078] The curtain wall beams are made of 6063-T5 aluminum alloy with a fluorocarbon coating.

[0079] The column connector is made of 12mm thick angle steel with hot-dip galvanized surface treatment.

[0080] The hidden frame pressure block is made of 6063-T6 aluminum alloy profile and is set at equal intervals. In this embodiment, the preferred interval is 300mm, and the surface is treated with fluorocarbon spraying.

[0081] By installing gutters, drainage requirements can be met, and the problems of uneven heights and non-parallel spatial relationships between the glass panels on both sides can be resolved.

[0082] The stainless steel gutter is fitted with insulating rock wool between the bottom and the main steel structure, and a stainless steel grating is installed on the top of the stainless steel gutter.

[0083] The curtain wall beams and glass panels are connected by aluminum profiles, and a sealing strip is provided between the aluminum profiles of the two glass panels.

[0084] The skylight also includes:

[0085] The operable window is primarily for smoke extraction; its basic dimensions are: width x height = 3300 x 850 = 2.81 m², with a glass configuration of 8 LOW-E + 16Ar + 8 + 1.52 dedicated PVB + 3 photovoltaic panels (cadmium telluride) + 1.52 dedicated PVB + 8 ultra-clear tempered laminated insulated glass (all three panes of glass are ultra-clear tempered glass from the outside to the inside); the maximum opening angle is 70 degrees.

[0086] Window opener, the window opener is an electric synchronous chain window opener, each opening window is equipped with four window openers, the window opener thrust should not be less than 650N, and must meet the normal opening and closing of the opening window;

[0087] The locking structure adopts an electronically driven multi-point locking device, and the spacing between the electronic multi-point locks is no more than 500mm.

[0088] Hinges are installed on the operable windows. The hinges are made of duplex stainless steel (S22253), and each operable window has no less than 3 hinges.

[0089] In addition, operable windows should be equipped with anti-fall-off measures.

[0090] The construction method for the aforementioned steel structure building skylight structure includes the following steps:

[0091] S1: Construction preparation, including preparing installation tools and setting up the operating platform;

[0092] S2: Measure and set out the lines, confirm the control points, and measure the elevation;

[0093] S3: Embedded parts verification, deviation detection of embedded parts, and error adjustment;

[0094] S4: Support installation, and quality inspection after installation;

[0095] S5: Aluminum alloy crossbeam installation; quality inspection shall be carried out after installation.

[0096] S6: Glass panel installation; quality inspection will be conducted after installation.

[0097] S7: Apply adhesive for sealing and clean up any residual adhesive;

[0098] S8: Stainless steel gutter installation;

[0099] S9: Cleaning and acceptance.

[0100] When constructing the steel structure building's curtain skylight, if the curtain skylight is located in the middle of the roof at an elevation of 25m or higher, a roof material storage point should be set up, and a 100T crane should be used to lift the materials to the roof material storage point.

[0101] During the construction of the steel structure building's skylight structure, two steel scaffolding boards are provided at each manual construction site, with the two ends of the steel scaffolding boards fixed by ropes. The construction is carried out sequentially by moving the boards, installing the connectors and aluminum keels from the lowest point to the highest point, with the connectors and aluminum keels installed simultaneously.

[0102] During the construction of the steel structure building's curtain skylight, the materials are hoisted to a separate storage point on the roof. Each storage point is 6m*12m=72㎡, and a total of 4 storage points are set up. Before construction, a safety net is set up at the bottom area of ​​the curtain skylight. When installing the glass panels, construction is carried out from the material storage point to both sides.

[0103] Example 2:

[0104] A steel structure building curtain skylight structure and its construction method are disclosed. This embodiment, based on Embodiment 1, further includes curtain wall performance testing in the construction method of the steel structure building curtain skylight structure, specifically including the following steps:

[0105] S11: Preparation before testing: Before testing, the switch on the openable part of the specimen should be turned on no less than 5 times, and then closed tightly.

[0106] S12: Pre-pressurization: Apply 3 pressure pulses before positive and negative pressure detection; the absolute pressure difference is 500Pa, the duration is 3s, the pressurization rate is 100Pa / s, and the detection begins after the pressure difference returns to zero.

[0107] S13: Apply pressure in stages, with each pressure application time not exceeding 10 seconds. First, apply positive pressure in stages, then apply negative pressure in stages; record the detection values ​​of the pressure difference at each stage.

[0108] S14: Measure the additional air infiltration rate q respectively. f Total permeation q z Fixed portion of air infiltration q g .

[0109] The method for processing the measured values ​​in the curtain wall performance test is as follows:

[0110] S21: Calculate the average value q of the additional permeation detection values ​​on both sides under a pressure difference of 100Pa during the pressurization and depressurization processes of positive pressure detection. f The average of the two total permeability measurements, q z The average value q of the permeability measurements of two fixed parts g The air permeation rate q of the integral curtain wall specimen (including the operable parts) under a pressure difference of 100Pa is... t and the amount of air that can be opened q k It can be calculated using the following formula:

[0111] q t =q z -q f

[0112] q k =q t -q g

[0113] The unit for air infiltration is m. 3 / h;

[0114] S22: Standard conditions [Temperature α, in this test α = 293 K (20°C); Pressure β, in this test β = 101.3 kPa (760 mmHg); Air density δ, in this test δ = 1.202 kg / m³] 3 The test conditions are as follows: The air permeation under standard conditions is q1 through the entire curtain wall specimen (including the operable parts), and q2 through the operable parts, in meters. 3 / h;

[0115] q1 = α / β × qt * P / T

[0116] q2=α / β×qk*P / T

[0117] Where: P is the air pressure value of the detection chamber in kPa, and T is the air temperature value of the detection chamber in K;

[0118] S23: Dividing q1 by the total area A of the specimen yields the air permeability q1' per unit area of ​​the entire curtain wall specimen (including the operable parts) under a pressure difference of 100 Pa. 3 / (m 2 .h);

[0119] q1' = q1 / A;

[0120] S24: Dividing q2 by the opening length l of the operable portion of the specimen yields the air permeability q2' per unit opening length of the operable portion of the curtain wall specimen under a pressure difference of 100Pa. 3 / (mh);

[0121] q2' = q2 / A;

[0122] S25: The results of the negative pressure test are also calculated using the same method.

[0123] The determination of the grading index values ​​in the curtain wall performance test is as follows:

[0124] The calculated value ±q1' or ±q2' under a pressure difference of 100 Pa is converted to the corresponding value ±q under a pressure difference of 10 Pa using the following formula. A The value or ±q1 value is the ±q of the specimen. A The value and ±q1 value determine the respective levels according to area and seam length, and the most unfavorable level is selected for classification;

[0125] ±q A =±q1' / 4.65

[0126] ±q1=±q2' / 4.65

[0127] Air permeability per unit area of ​​specimen ±q under a pressure difference of 10 Pa A Value, m 3 / (m 2 .h)

[0128] Air permeation rate ± q1 per unit open seam length under a pressure difference of 10 Pa, m 3 / (mh).

[0129] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A skylight structure for steel-framed buildings, characterized in that, The overall shape of the curtain skylight is a hyperboloid structure; The overall hyperboloid structure of the skylight is divided into multiple hyperboloid grids by vertical squaring. Each hyperboloid grid includes two single-curved grids. Each single-curved grid has a broken surface. The single-curved grids are made of flat glass panels with a four-sided support structure. The glass panels are made of photovoltaic glass. Stainless steel gutters are provided between the hyperboloid grids. The skylight also includes: The main keel is a simply supported beam structure. One end of the main keel is fixed and hinged, and the other end is a telescopic sliding hinge. Secondary keel, the secondary keel is a simply supported beam structure, one end of the secondary keel is fixedly hinged, and the other end is slidably hinged; The curtain wall columns are made of aluminum alloy profiles with fluorocarbon coating on the surface. The curtain wall beams are made of aluminum alloy with a fluorocarbon coating. The column connectors are made of angle steel with a hot-dip galvanized surface treatment. The concealed frame pressure block is made of aluminum alloy profile, is evenly spaced, and has a fluorocarbon coating on the surface.

2. The steel structure building curtain skylight structure according to claim 1, characterized in that, Thermal insulation rock wool is installed between the bottom of the stainless steel gutter and the main steel structure, and a stainless steel grille is installed on the top of the stainless steel gutter; the curtain wall beams are connected to the glass panels by aluminum profiles, and a sealing strip is installed between the aluminum profiles of the two glass panels.

3. The steel structure building curtain skylight structure according to claim 1, characterized in that, The skylight also includes: The window can be opened to a maximum angle of 70 degrees. Window opener, the window opener is an electric synchronous chain window opener, each opening window is equipped with four window openers, the window openers must meet the normal opening and closing of the opening window; The locking structure adopts an electronically driven multi-point locking device, and the spacing between the electronic multi-point locks is no more than 500mm. Hinges are installed on the operable windows. The hinges are made of duplex stainless steel and there are no fewer than three hinges for each operable window.

4. The steel structure building curtain skylight structure according to claim 1, characterized in that, The construction method for the aforementioned steel structure building skylight structure includes the following steps: S1: Construction preparation, including preparing installation tools and setting up the operating platform; S2: Measure and set out the lines, confirm the control points, and measure the elevation; S3: Embedded parts verification, deviation detection of embedded parts, and error adjustment; S4: Support installation, and quality inspection after installation; S5: Aluminum alloy crossbeam installation; quality inspection shall be carried out after installation. S6: Glass panel installation; quality inspection will be conducted after installation. S7: Apply adhesive for sealing and clean up any residual adhesive; S8: Stainless steel gutter installation; S9: Cleaning and acceptance.

5. A steel structure building curtain skylight structure according to claim 4, characterized in that, When constructing the skylight structure of the steel structure building, if the skylight is located in the middle of the roof at an elevation of 25m or higher, a roof material storage point should be set up, and a crane should be used to lift the materials to the roof material storage point.

6. The steel structure building curtain skylight structure according to claim 4, characterized in that, During the construction of the steel structure building's skylight structure, two steel scaffolding boards are provided at each manual construction site, with the two ends of the steel scaffolding boards fixed by ropes. The construction is carried out sequentially by moving the boards, installing the connectors and aluminum keel from the lowest point to the highest point, with the connectors and aluminum keel being installed simultaneously.

7. A steel structure building curtain skylight structure according to claim 4, characterized in that, When constructing the skylight structure of the steel structure building, before construction, a safety net is installed at the bottom of the skylight. When installing the glass panels, construction is carried out from the material stacking point to both sides.

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