A hyperboloidal aluminum plate curtain wall assembly type installation construction method

Abstract

The application provides a hyperboloidal aluminum plate curtain wall assembly type installation construction method, which comprises the following specific steps: S1, a curtain wall skin model is established according to the bending radius of the outer surface of the hyperboloidal aluminum plate curtain wall shown in the drawing, and on the basis of the skin model, the completed surface of the keel and the intersection point of the keel are drawn according to the node diagram and the keel grid; S2, the center line of the keel surface and the keel model are generated by using BIM technology on the basis of S1, and the bending radius of the keel in different positions is extracted; S3; S4; S5; S6, the rhombic aluminum veneer is made by adopting the thick aluminum veneer single curve processing. The construction method ensures that the completed surface of the keel after installation meets the design effect by determining the accurate bending radius of the bending keel, the butt joint of the keel is twisted, the completed surface of the keel joint is uniform, the conventional single keel installation mode is changed into the ground plate welding integral hoisting, the precision is high, the construction period is shortened, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a prefabricated installation method for hyperboloid aluminum panel curtain walls. Background Technology

[0002] In architectural engineering, the goal of architectural design is to achieve stylistic versatility while ensuring safety, thereby enhancing the building's aesthetics and recognizability. Therefore, many buildings feature irregularly arranged curtain walls, including hyperboloid aluminum panel curtain walls.

[0003] Compared to conventional single-curved curtain walls, hyperboloid aluminum panel curtain walls are divided into rectangular sections with the curvature perpendicular to the dividing lines. The keel and panels are treated as single curves, and the material processing curvature is consistent with the finished surface, making construction relatively convenient. However, hyperboloid aluminum panel curtain walls are divided into rhomboid sections with the curvature perpendicular to the diagonal and the side shape is an irregular quadrilateral. Therefore, the curvature of the steel keel is not consistent with the curvature of the outer skin, and the design requires the keel to be made of steel square tubes, which greatly increases the construction difficulty.

[0004] The specific problems are as follows:

[0005] 1. The curvature of the keel is difficult to determine. Construction drawings generally only indicate the radius and arc length of the finished surface of the curtain wall. As the base keel of the curtain wall, it is not indicated on the drawings. Since the curvature of the finished surface is perpendicular to the diagonal of the keel, the curvature of the keel cannot be measured from the drawings.

[0006] 2. Bending and twisting keel is difficult to process: When using steel square tubes as curtain wall keels, in addition to having an overall bending radius, the square tube also needs to have a certain twist along the core of the square tube to ensure that the outer surface of the keel is consistent with the curvature of the surface layer and always faces outward. However, this type of square tube is not directly processed.

[0007] 3. Difficulty in keel positioning and poor installation accuracy: Compared with traditional curved curtain walls, the curvature direction and arrangement direction of the keel are usually parallel to the axis. However, the keel of this curtain wall is arranged in a cross pattern, and the curvature direction of the keel is at a certain angle to the axis, making positioning difficult and installation accuracy difficult to control.

[0008] 4. Difficulty in processing double-curved aluminum composite panels: Curved metal curtain wall surfaces are generally designed using Class A fire-resistant aluminum composite panels. Although the metal curtain wall is designed to appear as a single curve, the curvature is perpendicular to the diagonal, resulting in two different directions of bending on the side edges of the aluminum panel, making it actually a double-curved aluminum panel. Aluminum composite panels are processed by grooving and folding the edges. After this processing method involves opening and bending the panel, the edges cannot be bent further, making it impossible to process double-curved panels. Summary of the Invention

[0009] To address the aforementioned issues, this invention provides a prefabricated installation method for hyperboloid aluminum panel curtain walls. This method ensures that the finished surface of the keel meets the design requirements by precisely determining the bending radius of the curved keel. The twisting treatment at the keel joints ensures a uniform finish, laying a solid foundation for the subsequent installation of the aluminum panels. It transforms the conventional single-keel installation method into a welded, integrated hoisting system for the ground panels, avoiding problems such as poor installation accuracy and large dimensional deviations caused by spatial positioning difficulties. This results in a shorter construction period and lower costs.

[0010] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0011] A prefabricated installation method for hyperboloid aluminum panel curtain walls includes the following specific steps:

[0012] S1. Based on the curvature radius of the outer surface of the curtain wall as shown in the drawings of the hyperboloid aluminum panel curtain wall, establish the curtain wall skin model. On the basis of the skin model, draw the finished skin of the keel and the intersection of the keel according to the node diagram and the keel grid.

[0013] S2. Based on S1, use BIM technology to generate the centerline of the keel surface and the keel model, and extract the keel bending radius of different parts.

[0014] S3. Select a standard keel plate model from the keel model, flip the standard keel plate model to the horizontal, take the lowest welding point height of the keel as Z=0, export the spatial positioning point of each keel welding positioning point on the center line of the keel surface, and the on-site operator welds the keel jig based on the welding positioning point to ensure the accuracy of the keel welding dimensions.

[0015] S4. Weld the curved frame plate using the keel frame in S3. After the curved frame plate is fully welded and anti-corrosion treated, hoist it as a whole.

[0016] S5. Use a keel torsion clamp to hold one end of the keel at the joint position, and use a telescopic device to push the other end side to apply force and twist. When the finished surfaces of both ends are basically uniform, weld at the joint position.

[0017] S6. Thick aluminum single panels are used to make diamond-shaped aluminum single panels by single-curve processing. The edges of the diamond-shaped aluminum single panels are made of aluminum strips of the same material. They are individually welded to the corresponding panel surface according to the bending radius of the diamond-shaped aluminum single panel to complete the assembly process of the entire hyperboloid aluminum panel curtain wall.

[0018] Preferably, in S3, the spatial positioning point is the intersection of the X, Y, and Z directions in the bone standard plate model.

[0019] Preferably, the keel torsion clamp includes a horizontal channel steel, a longitudinal channel steel and a vertical channel steel. The longitudinal channel steel is welded to the top of the horizontal channel steel, and the vertical channel steel is welded to the side wall of the horizontal channel steel. One end of the keel at the docking position is clamped between the vertical channel steel and the longitudinal channel steel.

[0020] Preferably, during the installation of the diamond-shaped aluminum panels in S6, the operator uses a ladder truck for installation and adhesive application.

[0021] Preferably, the telescopic device is a hydraulic jack, and the load applied by the hydraulic jack is in the range of 30-80 MPa.

[0022] Preferably, the curved frame plate is composed of multiple cross-welded steel square tubes.

[0023] Preferably, the keel frame includes two horizontally arranged steel square tubes, and multiple N-shaped supports are welded on the two steel square tubes at equal intervals. The curved frame plate is welded on the multiple supports.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. Data is transferred from two-dimensional plane data to three-dimensional space for extraction. By determining the precise bending radius of the curved keel, it is ensured that the finished surface of the keel meets the design effect after installation.

[0026] 2. By setting up keel torsion clamps and telescopic devices, the joints of the keels are torsion-treated to ensure a uniform finish on the keel joints, laying a good foundation for the subsequent installation of the aluminum panels.

[0027] 3. The conventional single-keel installation method is transformed into a ground-mounted panel welding and hoisting system, avoiding the problems of poor keel installation accuracy and large dimensional deviations caused by spatial positioning difficulties. Using model parameters to create a jig on-site, welding on the ground jig ensures higher welding quality and accuracy. Furthermore, as workers become more proficient in modular welding of the same standard keel panels, welding efficiency increases, significantly improving work efficiency and shortening the construction period. Because multiple panels can be processed and hoisted simultaneously, the usage time of cranes and aerial work equipment is greatly reduced, lowering construction costs.

[0028] 4. By changing the material, the use of hyperbolic aluminum single panels not only ensures that the curvature of the panels meets the design requirements, but also ensures the panel supply and installation cycle by reducing the processing cycle of aluminum single panels by at least half compared to aluminum composite panels, thus avoiding the impact on the construction period due to slow material processing. Attached Figure Description

[0029] Figure 1 This is a flowchart illustrating the construction process of the present invention.

[0030] Figure 2 This is a schematic diagram of the curtain wall skin model proposed in this invention;

[0031] Figure 3 This is a schematic diagram of the keel model proposed in this invention;

[0032] Figure 4 This is a schematic diagram of the standard keel plate model proposed in this invention;

[0033] Figure 5 This is a schematic diagram of the keel torsion clamp structure proposed in this invention.

[0034] In the diagram: 1. Horizontal channel steel, 2. Vertical channel steel, 3. Longitudinal channel steel. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Reference Figure 1-5 A prefabricated installation method for hyperboloid aluminum panel curtain walls includes the following specific steps:

[0038] Finding the keel curvature radius: The drawings for the hyperboloid aluminum panel curtain wall are CAD drawings, which are planar projection drawings. The keel lines on the drawings are projection lines and the radius is not marked. It is not feasible to measure directly on the drawings. We need to create a curved keel model in space to measure the curvature radius.

[0039] S1. Based on the curvature radius of the outer surface of the curtain wall as shown in the drawings of the hyperboloid aluminum panel curtain wall, establish the curtain wall skin model. On the basis of the skin model, draw the finished skin of the keel and the intersection of the keel according to the node diagram and the keel grid.

[0040] S2. Based on S1, use BIM technology to generate the centerline of the keel surface and the keel model, and extract the keel bending radius of different parts.

[0041] Conventional single-unit hoisting methods for keels present challenges in spatial positioning. Therefore, it is recommended to assemble the keel on the ground and then hoist it as a whole, thus transferring the independent spatial positioning of individual keels to the overall positioning of the ground keel panels and reducing keel positioning deviations.

[0042] S3. Select a standard keel plate model from the keel model, flip the standard keel plate model to the horizontal, take the lowest welding point height of the keel as Z=0, and export the spatial positioning point of each keel welding positioning point on the center line of the keel surface. The spatial positioning point is the intersection of the X, Y and Z directions in the standard keel plate model. On-site operators weld the keel jig based on the welding positioning points to ensure the accuracy of the keel welding dimensions.

[0043] S4. Using the keel frame in S3, weld the curved frame panels. After the curved frame panels are fully welded and treated with anti-corrosion, hoist them as a whole. This transforms the conventional single keel installation method into a ground panel welding and hoisting method, avoiding the problems of poor keel installation accuracy and large keel size deviation caused by spatial positioning difficulties.

[0044] Since the manufacturer was unable to process the torsion, they first performed bending and arc processing at the factory, and then carried out secondary processing on-site to address the torsion problem.

[0045] S5. Use a keel torsion clamp to hold one end of the keel at the joint position, and use a telescopic device to push the other end side to apply force and twist it. When the finished surfaces of both ends are basically uniform, weld at the joint position to twist the keel joint and ensure that the finished surface of the keel joint is uniform, which lays the foundation for the good installation of the subsequent aluminum plate.

[0046] Since aluminum composite panels cannot be processed into hyperbolic panels, adjustments to the materials are being considered to ensure that the installation effect of the aluminum panels meets the design requirements.

[0047] S6. Thick aluminum single panels are used to create diamond-shaped aluminum single panels with a single-curve treatment. The edges of the diamond-shaped aluminum single panels are made of aluminum strips of the same material. They are individually welded to the corresponding panels according to the curvature of the panel surface. When installing the diamond-shaped aluminum single panels, operators use a ladder truck to install and apply adhesive, completing the entire assembly process of the double-curved aluminum panel curtain wall. Using double-curved aluminum single panels ensures that the curvature of the panels meets the design requirements. Also, because the processing cycle of aluminum single panels is reduced by at least half compared to aluminum composite panels, the panel supply and installation cycle is guaranteed, avoiding the impact on the construction period due to slow material processing.

[0048] Specifically, the keel torsion fixture includes a horizontal channel steel 1, a longitudinal channel steel 3, and a vertical channel steel 2. The longitudinal channel steel 3 is welded to the top of the horizontal channel steel 1, and the vertical channel steel 2 is welded to the side wall of the horizontal channel steel 1. One end of the keel at the joint position is clamped between the vertical channel steel 2 and the longitudinal channel steel 3. The other end is pushed up by a telescopic device to apply force and torsion. When the finished surfaces of both ends are basically uniform, welding is performed at the joint position.

[0049] Furthermore, the telescopic device is a hydraulic jack, which applies a load range of 30-80 MPa. The hydraulic pressure is controlled to adjust the load and telescopic range of the telescopic device.

[0050] Furthermore, the curved frame panel is composed of multiple cross-welded steel square tubes, forming multiple diamond-shaped grids, which are used to fit and install corresponding diamond-shaped aluminum panels.

[0051] Furthermore, the keel frame includes two horizontally arranged steel square tubes, on which multiple equally spaced N-shaped supports are welded. The curved frame panels are welded and fabricated on multiple supports. Welding on the ground frame can better ensure the welding quality and precision of the keel. Moreover, as workers become more proficient in modular welding of the same standard keel panels, the welding efficiency will increase, greatly improving work efficiency and reducing the construction period.

[0052] By transferring data from two-dimensional plane to three-dimensional space and extracting data, the precise bending radius of the curved keel was determined, ensuring that the finished surface of the keel after installation met the design requirements. By setting up keel torsion clamps and telescopic devices, the joints of the keels were torsion-treated, ensuring a uniform finished surface of the keel joints and laying a good foundation for the subsequent installation of the aluminum panels. The conventional single keel installation method was transformed into a whole-unit hoisting installation of welded ground panels, avoiding the problems of poor keel installation accuracy and large keel dimensional deviations caused by difficulties in spatial positioning. Using model parameters to build a jig on-site and welding on the ground jig ensures better welding quality and precision of the keel. As workers become more proficient in modular welding of the same standard keel panels, welding efficiency increases, greatly improving work efficiency and reducing construction time. Furthermore, because multiple panels can be processed and hoisted together, the usage time of cranes and aerial work equipment is significantly reduced, lowering construction costs. Using double-curved aluminum panels ensures that the curvature of the panels meets design requirements, and because the processing cycle of aluminum panels is at least half that of aluminum composite panels, it guarantees the panel supply and installation cycle, avoiding delays caused by slow material processing.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated installation method for hyperboloid aluminum panel curtain walls, characterized in that, The specific steps include the following: S1. Based on the curvature radius of the outer surface of the curtain wall as shown in the drawings of the hyperboloid aluminum panel curtain wall, establish the curtain wall skin model. On the basis of the skin model, draw the finished skin of the keel and the intersection of the keel according to the node diagram and the keel grid. S2. Based on S1, use BIM technology to generate the centerline of the keel surface and the keel model, and extract the keel bending radius of different parts. S3. Select a standard keel plate model from the keel model, flip the standard keel plate model to the horizontal, take the lowest welding point height of the keel as Z=0, export the spatial positioning point of each keel welding positioning point on the center line of the keel surface, and the on-site operator welds the keel jig based on the welding positioning point to ensure the accuracy of the keel welding dimensions. S4. Weld the curved frame plate using the keel frame in S3. After the curved frame plate is fully welded and anti-corrosion treated, hoist it as a whole. S5. Use a keel torsion clamp to hold one end of the keel at the joint position, and use a telescopic device to push the other end side to apply force and twist. When the finished surfaces of both ends are basically uniform, weld at the joint position. S6. Thick aluminum single panels are used to make diamond-shaped aluminum single panels by single-curve processing. The edges of the diamond-shaped aluminum single panels are made of aluminum strips of the same material. According to the bending radius of the diamond-shaped aluminum single panel, they are individually welded to the corresponding panel surface to complete the assembly process of the entire double-curved aluminum panel curtain wall. The keel torsion clamp includes a horizontal channel steel (1), a longitudinal channel steel (3) and a vertical channel steel (2). The longitudinal channel steel (3) is welded to the top of the horizontal channel steel (1), and the vertical channel steel (2) is welded to the side wall of the horizontal channel steel (1). One end of the keel docking position is stuck between the vertical channel steel (2) and the longitudinal channel steel (3).

2. The prefabricated installation method for hyperboloid aluminum panel curtain walls according to claim 1, characterized in that, In S3, the spatial positioning point is the intersection of the X, Y, and Z directions in the bone standard plate model.

3. The prefabricated installation method for hyperboloid aluminum panel curtain walls according to claim 1, characterized in that, When installing diamond-shaped aluminum panels in S6, operators use a ladder truck for installation and adhesive application.

4. The prefabricated installation method for hyperboloid aluminum panel curtain walls according to claim 1, characterized in that, The telescopic device is a hydraulic jack, and the load applied by the hydraulic jack is in the range of 30-80 MPa.

5. The prefabricated installation method for hyperboloid aluminum panel curtain walls according to claim 1, characterized in that, The curved frame plate is composed of multiple cross-welded steel square tubes.

6. The prefabricated installation method for hyperboloid aluminum panel curtain walls according to claim 1, characterized in that, The keel frame includes two horizontally arranged steel square tubes, and multiple N-shaped supports are welded to the two steel square tubes at equal intervals. The curved frame plate is welded onto the multiple supports.

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