Construction method of double-curved-surface glass curtain wall

Abstract

The invention relates to the technical field of curtain wall construction, and particularly discloses a construction method of a double-curved-surface glass curtain wall, which comprises the following steps of: determining position coordinates of keel frame installation control points in a steel structure grid frame and the length of an adapter, and lofting the coordinates of the installation control points of the steel structure grid frame in a construction site; the positions of control points of the keel frame are determined through three-dimensional model simulation, the coordinates of a supporting jig frame of the keel frame are calculated through the three-dimensional technology on a keel frame machining site, and pre-assembling and welding of the keel frame are conducted; welding the control points on the keel frame and the mounting control points on the steel structure grid frame through adapters; curtain wall glass is installed; the installation precision of the keel frame is guaranteed, the construction quality of the glass curtain wall is improved, meanwhile, the keel frame is installed and fixed in an integral hoisting mode, safety is high, and the method is suitable for construction of the double-curved-surface glass curtain wall.

Description

Technical Field

[0001] The invention relates to the technical field of curtain wall construction, in particular to a construction method of a hyperbolic glass curtain wall. Background Art

[0002] Curtain wall buildings are a common form of modern architectural design, which can show a very modern and technological image. Unlike conventional concrete buildings, curtain wall buildings are mostly irregular in shape. Curtain wall buildings are often used in stadiums, activity centers, office buildings and other places. Figure 1-2 The gymnasium with a petal-shaped glass curtain wall shown in the figure adopts a hyperbolic glass curtain wall to seal the side end face of each petal structure of the gymnasium. The total arc length of the hyperbolic glass curtain wall from the overall color of the roof to the bottom surface reaches 75.6 meters, and the slope is adjusted in both directions. According to the conventional construction process of the glass curtain wall: install the main keel → secondary keel → profile → panel. The supporting structure of the curtain wall building is a steel structure grid. It is difficult to effectively determine the installation point, and it is difficult to ensure the installation accuracy by directly installing the main keel. Moreover, the steel structure itself has a large span, the construction workers have no foothold, and safety protection is difficult and accidents are prone to occur. The construction of the hyperbolic glass curtain wall becomes a technical difficulty of the construction. To this end, the present application proposes a construction method of a hyperbolic glass curtain wall to solve the above problems. Summary of the invention

[0003] In view of the existing problems, the present invention provides a construction method of a hyperbolic glass curtain wall, which can effectively solve the problems raised in the background technology.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A construction method for a hyperbolic glass curtain wall comprises the following steps:

[0006] S1 Determine the installation control points of the steel structure grid: Use software to perform simulation calculations based on the design drawings to determine the position coordinates of the installation control points of the keel frame and the length of the adapter in the steel structure grid;

[0007] S2 Construction site installation control point stakeout: Use a combination of total station and RTK to stake out the coordinates of the installation control points of the steel structure grid at the construction site;

[0008] S3 Determine the position of the keel frame control point: Determine the position of the keel frame control point through 3D model simulation, and output the split drawings to the factory for keel frame bending processing;

[0009] S4 Processing of keel frame: 3D technology is used to calculate the coordinates of the keel frame support frame at the keel frame processing site. After accurate layout, the support frame is installed. After the specifications, dimensions and angles of the support frame are confirmed to be qualified, the keel frame is pre-assembled and welded;

[0010] S5 Hoisting and installing the keel frame: transport the keel frame to the construction site, and use the hoisting machinery to hoist the keel frame to the designated position of the steel structure grid, and weld the control points on the keel frame and the installation control points on the steel structure grid through adapters;

[0011] S6 Glass installation: After the keel frame is welded, the curtain wall glass is installed.

[0012] As a further solution of the present invention: the installation control point coordinates in step S2 are determined according to the keel frame installation control point position coordinates determined in step S1, and each installation control point coordinate is numbered.

[0013] As a further solution of the present invention: after determining the keel frame control points in step S3, the three-dimensional model of the keel frame is split into three parts, namely a section close to the upper end, a section close to the lower end and a section with a large bend in the middle, and the length of each section is within the production length of the keel frame.

[0014] As a further solution of the present invention: in step S4, the top support point of the support frame is consistent with the installation control point of the keel frame, and the connecting line of the top support point is consistent with the hyperbolic curvature of the keel frame.

[0015] As a further solution of the present invention: in step S4, the keel frame includes an inner arc keel, an outer arc keel and a transverse keel, and both ends of the transverse keel are welded to the inner arc keel and the outer arc keel.

[0016] As a further solution of the present invention: in the step S4, three-dimensional software is used to perform center-to-center positioning and grating of the inner arc keel and the outer arc keel on the transverse keel, and the transverse keel is welded along the center-to-center positioning and grating line.

[0017] As a further solution of the present invention: the curtain wall glass in step S6 is cut according to the size enclosed by two adjacent transverse keels and the inner arc keel and the outer arc keel, and is numbered in sequence.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention uses software simulation to determine the positions of the installation control points on the keel frame and the steel structure grid, and prefabricates the keel frame, which can accurately determine the positions of the installation control points of the keel frame on the steel structure grid at the construction site, thereby ensuring the installation accuracy of the keel frame and improving the construction quality of the glass curtain wall. At the same time, the keel frame is installed and fixed in an overall hoisting manner, which has high safety and is suitable for the construction of hyperbolic glass curtain walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the existing gymnasium with petal-shaped glass curtain walls;

[0020] Figure 2 This is a side view of the existing gymnasium with petal-shaped glass curtain walls;

[0021] Figure 3 The present invention is a schematic diagram of a construction method of a hyperbolic glass curtain wall;

[0022] Figure 4 The present invention is a schematic diagram of the design and assembly process of a keel frame in a construction method of a hyperbolic glass curtain wall.

[0023] In the figure: 1, 2, 3, 4, 5, 6, 7, 8, 9, 101, 301, 302, 303, 304, 401, 402,. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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.

[0025] Combination Figure 3 to Figure 4 This embodiment describes a method for constructing a hyperbolic glass curtain wall, which includes the following steps:

[0026] S1 Determine the installation control points of the steel structure grid: Use software to perform simulation calculations based on the design drawings to determine the position coordinates of the installation control points of the keel frame in the steel structure grid and the length of the adapter. The adapter is used to weld and fix the keel frame to the steel structure grid;

[0027] S2: Stakeout of installation control points at the construction site: Use a combination of total station and RTK to stake out the coordinates of the installation control points of the steel structure grid at the construction site. The coordinates of the installation control points are determined according to the position coordinates of the keel frame installation control points determined in step S1, and each installation control point coordinate is numbered;

[0028] S3 Determine the position of the keel frame control point: Determine the position of the keel frame control point through 3D model simulation, and output the split drawings to the factory for keel frame bending processing. Specifically, after determining the keel frame control point, split the keel frame 3D model into three parts, namely, a section near the upper end, a section near the lower end, and a section with a large bend in the middle. The length of each section is within the production length of the keel frame;

[0029] S4 Processing of keel frame: 3D technology is used to calculate the coordinates of the support frame of the keel frame at the keel frame processing site. After accurate layout, the support frame is installed. After the specifications, dimensions and angles of the support frame are confirmed to be qualified, the keel frame is pre-assembled and welded. The top support point of the support frame is consistent with the installation control point of the keel frame, and the connection line of the top support point is consistent with the hyperbolic curvature of the keel frame. The support frame is used to simulate the installation control point position of the steel structure grid, so that the keel frame can be accurately supported and the control point position of the keel frame can be determined; the keel frame includes an inner arc keel, an outer arc keel and a transverse keel, and the two ends of the transverse keel are welded to the inner arc keel and the outer arc keel. The inner arc keel and the outer arc keel are positioned and divided into the center-to-center position of the transverse keel by 3D software, and the transverse keel is welded along the center-to-center positioning grid line, and then the inner arc keel and the outer arc keel are positioned in turn, and finally welded to form a keel frame structure. The three-section keel frame structure uses an integral support frame for support and positioning.

[0030] S5 Hoisting and installing the keel frame: transport the keel frame to the construction site, and use the hoisting machinery to hoist the keel frame to the designated position of the steel structure grid, and weld the control points on the keel frame and the installation control points on the steel structure grid through adapters;

[0031] S6 Glass installation: After the keel frame is welded, the curtain wall glass is installed. The curtain wall glass is cut according to the size of the two adjacent horizontal keels and the inner arc keel and outer arc keel, and numbered in sequence. Aluminum alloy profiles are installed on the keel frame, and the curtain wall glass is fixed by the aluminum alloy profiles. The curtain wall glass is sealed and connected to the aluminum panels on both sides.

[0032] The working principle of the present invention is: software simulation is used to determine the positions of installation control points on the keel frame and the steel structure grid, and the keel frame is prefabricated, so that the positions of installation control points of the keel frame on the steel structure grid at the construction site can be accurately determined, thereby ensuring the installation accuracy of the keel frame and improving the construction quality of the glass curtain wall. At the same time, the keel frame is installed and fixed in an overall hoisting manner, which has high safety and is suitable for the construction of hyperbolic glass curtain walls.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] 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 construction method for a hyperbolic glass curtain wall, characterized in that: The steps include: S1 Determine the installation control points of the steel structure grid: Use software to perform simulation calculations based on the design drawings to determine the position coordinates of the installation control points of the keel frame and the length of the adapter in the steel structure grid; S2 Construction site installation control point stakeout: Use a combination of total station and RTK to stake out the coordinates of the installation control points of the steel structure grid at the construction site; S3 Determine the position of the keel frame control point: Determine the position of the keel frame control point through 3D model simulation, and output the split drawings to the factory for keel frame bending processing; S4 Processing of keel frame: 3D technology is used to calculate the coordinates of the keel frame support frame at the keel frame processing site. After accurate layout, the support frame is installed. After the specifications, dimensions and angles of the support frame are confirmed to be qualified, the keel frame is pre-assembled and welded; S5 Hoisting and installing the keel frame: transport the keel frame to the construction site, and use the hoisting machinery to hoist the keel frame to the designated position of the steel structure grid, and weld the control points on the keel frame and the installation control points on the steel structure grid through adapters; S6 Glass installation: After the keel frame is welded, the curtain wall glass is installed.

2. The construction method of a hyperbolic glass curtain wall according to claim 1, characterized in that: The installation control point coordinates in step S2 are determined according to the keel frame installation control point position coordinates determined in step S1, and each installation control point coordinate is numbered.

3. The construction method of a hyperbolic glass curtain wall according to claim 1, characterized in that: After determining the control points of the keel frame in step S3, the three-dimensional model of the keel frame is split into three parts, namely a section close to the upper end, a section close to the lower end and a section with a large bend in the middle, and the length of each section is within the production length of the keel frame.

4. The construction method of a hyperbolic glass curtain wall according to claim 3, characterized in that: In step S4, the top support point of the support frame is consistent with the installation control point of the keel frame, and the connecting line of the top support point is consistent with the hyperbolic curvature of the keel frame.

5. The construction method of a hyperbolic glass curtain wall according to claim 4, characterized in that: In step S4, the keel frame includes an inner arc keel, an outer arc keel and a transverse keel, and two ends of the transverse keel are welded to the inner arc keel and the outer arc keel.

6. The construction method of a hyperbolic glass curtain wall according to claim 5, characterized in that: In step S4, three-dimensional software is used to perform center-to-center positioning and grating of the inner arc keel and the outer arc keel on the transverse keel, and the transverse keel is welded along the center-to-center positioning and grating line.

7. The construction method of a hyperbolic glass curtain wall according to claim 6, characterized in that: The curtain wall glass in step S6 is cut according to the size enclosed by two adjacent transverse keels, the inner arc keel and the outer arc keel, and is numbered in sequence.

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