Construction method of large plate live connection framework of twisted surface aluminum plate curtain wall

Abstract

The application provides a construction method of a twisted surface aluminum plate curtain wall large plate live connection framework, and relates to the technical field of building curtain wall construction. The construction method of the twisted surface aluminum plate curtain wall large plate live connection framework comprises the following steps: establishing a three-dimensional parameterized BIM model, processing point cloud data and modeling, deepening design, deepening design of the modeled model, framework manufacturing, framework installation, special-shaped aluminum plate installation, and connecting and fixing the special-shaped aluminum plate with the secondary keel according to the drawing requirements. The aluminum plate curtain wall framework large plate keel is split into a first main keel, a second main keel and a secondary keel by scanning and modeling the building. Each first main keel, second main keel and secondary keel is numbered, and the first main keel, second main keel and secondary keel are processed and manufactured one by one according to the numbered model, and are installed and constructed one by one according to the number. This can avoid installation errors as much as possible, improve work efficiency and save costs.

Description

Technical Field

[0001] This invention relates to the field of building curtain wall construction technology, specifically a construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall. Background Technology

[0002] In recent years, the exterior designs of curtain walls for large sports stadiums and super-large spatial buildings have shown a trend towards diversification, leading to more complex construction and increasingly tighter schedules. The inverted cone-shaped twisted aluminum panel curtain wall highlights the building's dynamic, flowing curves. Installed on the main steel structure's ring beam, it combines aluminum panel surfaces with a steel frame to create this inverted cone-shaped twisted surface effect. By establishing a BIM model and exporting the steel frame installation coordinates, a jig is erected in the factory, and large steel frame panels are fabricated into unit panels. These unit panels are connected by steel core fittings and then hoisted on-site, with adjustments made to the gaps between the aluminum panels. This type of aluminum panel curtain wall construction is more standardized and efficient, improving work efficiency, shortening the construction period, and saving costs. It also highlights the modular, prefabricated construction characteristics and can be used as a reference for similar projects.

[0003] In general, the construction of large-panel flexible connection frames for twisted aluminum panel curtain walls often requires the overall construction of the large-panel flexible connection frames for twisted aluminum panel curtain walls. This is inconvenient to adjust, prone to errors, and results in low work efficiency and wasted costs. Summary of the Invention

[0004] The purpose of this invention is to provide a construction method for a flexible connection frame for large panels of twisted aluminum panel curtain walls, aiming to solve the problem that flexible connection frames for large panels of twisted aluminum panel curtain walls are inconvenient to adjust during construction in general technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the construction method of the large-panel flexible connection frame of the twisted aluminum panel curtain wall includes the following steps: A three-dimensional parametric BIM model is established by using a three-dimensional laser scanner to emit laser beams at the object to acquire a large amount of point cloud data, and then processing and modeling the point cloud data. The detailed design involves refining the model after modeling, exporting detailed drawings of steel components and parts, and splitting the oversized keel into the first main keel, the second main keel, and the secondary keel, and numbering each of the first main keel, the second main keel, and the secondary keel. The skeleton is made by processing and manufacturing the first main keel, the second main keel and the secondary keel one by one according to the model number. According to the assembly drawings, the layout points of the jig are laid out on the hardened assembly site using a total station. The three-dimensional assembly jig is erected, and the first main keel, the second main keel and the secondary keel are pre-assembled and assembled using a total station for layout and positioning. The frame is installed by positioning and welding the lower ends of the first and second main keels to the rear embedded parts, while the secondary keels are installed on the first and second main keels. For aluminum plate installation, connect and fix the irregularly shaped aluminum plates to the secondary keel according to the drawing requirements.

[0006] The beneficial effects are as follows: by scanning and modeling the building, the large keel of the aluminum panel curtain wall frame is divided into the first main keel, the second main keel, and the secondary keel. Each of the first main keel, the second main keel, and the secondary keel is numbered. According to the model, the first main keel, the second main keel, and the secondary keel are processed and manufactured one by one according to their numbers, and then installed one by one according to their numbers. This can minimize installation errors, improve work efficiency, and save costs.

[0007] A further technical solution of the present invention is that the secondary keel is movably installed inside the first main keel and the second main keel, and the secondary keel is located between two adjacent first main keels and two adjacent second main keels.

[0008] A further technical solution of the present invention is that the first main keel and the second main keel are respectively provided with a plurality of first through holes and second through holes.

[0009] A further technical solution of the present invention is that the secondary keel includes a frame and connecting rods fixedly installed around the frame, wherein two symmetrical connecting rods are slidably installed inside the first through holes of two adjacent first main keels, and the other two symmetrical connecting rods are slidably installed inside the second through holes of two adjacent second main keels.

[0010] The beneficial effect is that by opening the first through hole and the second through hole in the first main keel and the second main keel respectively, the sliding secondary keel can be installed. This makes it easier for users to fine-tune the irregular aluminum plate when installing it on the secondary keel, so that the gap of the irregular aluminum plate after installation is smoother and more fluid.

[0011] A further technical solution of the present invention is that the bottom of the first main keel and the second main keel are fixedly connected to the bottom support through embedded parts.

[0012] A further technical solution of the present invention is that the tops of the first main keel and the second main keel are fixedly connected to the upper ring beam through connectors.

[0013] A further technical solution of the present invention is that the connector includes a connecting plate, and two clamps are fixedly installed on one side of the connecting plate. The two clamps are installed on both sides of the first main keel and are fixedly connected to the first main keel by the fixing bolts.

[0014] A further technical solution of the present invention is that a fixing rod for connecting the upper ring beam is fixedly installed on the other side of the connecting plate, and a plurality of ribs for strengthening the connection effect between the fixing rod and the connecting plate are fixedly installed on the outer surface of the fixing rod. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the irregular aluminum plate installation state in a specific embodiment of the present invention.

[0017] Figure 3 This is a structural schematic diagram of the connector in a specific embodiment of the present invention.

[0018] In the diagram: 1-Upper ring beam, 2-Irregular aluminum plate, 3-First main keel, 31-First through hole, 4-Second main keel, 41-Second through hole, 5-Secondary keel, 51-Frame, 52-Connecting rod, 6-Connecting piece, 61-Connecting plate, 62-Clamping plate, 621-Fixing groove, 63-Fixing bolt, 64-Fixing nut, 65-Fixing rod, 66-Rib plate. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1-2 As shown, a flexible connecting frame for large panels of a twisted aluminum panel curtain wall includes an upper ring beam 1 and a bottom support. Multiple first main keels 3 and second main keels 4 are fixedly installed between the upper ring beam 1 and the bottom support in a circular arrangement. The first main keels 3 and second main keels 4 are inclined and interlocked. Each first main keel 3 and second main keel 4 is symmetrically distributed at its intersection. Multiple first through holes 31 and second through holes 41 are respectively opened inside the first main keels 3 and second main keels 4. Secondary keels 5 are movably installed inside each of the multiple first through holes 31 and second through holes 41.

[0021] like Figure 1 As shown, the secondary keel 5 includes a frame 51, and four connecting rods 52 are fixedly installed around the frame 51. Two of the symmetrical connecting rods 52 are slidably installed inside the first through hole 31, and the other two connecting rods 52 are slidably installed inside the second through hole 41. The frames 51 of the multiple secondary keels 5 between two adjacent first main keels 3 are distributed from bottom to top in a manner from large to small.

[0022] like Figure 1As shown, the first main keel 3 is also provided with mounting holes 32 for installing the second main keel 4. The second main keel 4 is fixedly installed inside the mounting holes 32. The top of the outer surface of the first main keel 3 is fixedly connected to the upper ring beam 1 through the connector 6. The bottom of the first main keel 3 is fixedly connected to the bottom bracket through the rear embedded part.

[0023] like Figure 3 As shown, the connector 6 includes a connecting plate 61. Two clamping plates 62 are fixedly installed on one side of the connecting plate 61. The two clamping plates 62 are installed on both sides of the first main keel 3. Each clamping plate 62 has a fixing groove 621 inside. Fixing bolts 63 for fixing the clamping plates 62 are installed inside the fixing grooves 621 of the two clamping plates 62. The fixing grooves 621 are rounded rectangles, which allow the fixing bolts 63 to slide inside them to facilitate the installation of the first main keel 3 at different positions. The fixing bolts 63 enter from the fixing groove 621 of one clamping plate 62 and pass through the first main keel 3. Then they extend from the fixing groove 621 of the other clamping plate 62. The extended part of the fixing bolts 63 is threaded with fixing nuts 64 for fixing the bolts. The fixing nuts 64 and the clamping plates 62 abut against each other. A fixing rod 65 for connecting the upper ring beam 1 is fixedly installed on the other side of the connecting plate 61. Multiple ribs 66 for strengthening the connection between the fixing rod 65 and the connecting plate 61 are fixedly installed on the outer surface of the fixing rod 65.

[0024] A construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall includes the following steps: A three-dimensional parametric BIM model is established by using a three-dimensional laser scanner to emit laser beams at the object to acquire a large amount of point cloud data. The point cloud data is then processed and modeled. Through proportional lofting in computer CAD, a Rhino model is established, which can restore the true appearance of the object and clearly show the relative positional relationship between the main steel structure ring beam, channel steel transition parts and aluminum plate unit skeleton. The design is further refined by refining the model and exporting detailed drawings of steel components and parts. The large keel is divided into the first main keel 3, the second main keel 4, and the secondary keel 5, and each of the first main keel 3, the second main keel 4, and the secondary keel 5 is numbered. Since the overall aluminum plate shape is an inverted conical twisted surface, the length of each adapter is different. Each of the processed first main keel 3 and second main keel 4 is numbered and installed in the designated position according to the number. After the position is determined by setting out and marking points with a total station, the connector 6 is welded to the upper ring beam 1 of the main steel. The skeleton is fabricated by processing the first main keel 3, the second main keel 4, and the secondary keel 5 one by one according to the model number. According to the assembly drawings, the layout points of the jig are laid out on the hardened assembly site using a total station. The three-dimensional assembly jig is erected. The first main keel 3, the second main keel 4, and the secondary keel 5 are pre-assembled and assembled using a total station for layout and positioning. The first main keel 3 and the second main keel 4 can be cut, bent, and welded in sections. The keels cut in sections are placed in the jig, the bending dimensions are re-measured, and they are fixed with steel wedges. Full welding is performed at the bending points of the keels, and the welds are welded according to the secondary weld standard. Weld flaw detection tests are carried out in the factory. The welds should not have defects such as cracks, porosity, or slag inclusions. The jig must ensure sufficient rigidity and stability and ensure a levelness of ±1mm. For the frame installation, the lower ends of the first main keel 3 and the second main keel 4 are positioned and welded to the rear embedded parts. At the same time, the secondary keel 5 is installed on the first main keel 3 and the second main keel 4. A total of 9 coordinate control points are set during welding. The three-dimensional model coordinates (X,Y,Z) of the control points are converted into horizontal assembly (X direction, Y direction) coordinates. The coordinate positions are determined on the assembly jig. According to the control points determined by the assembly coordinate system, the first main keel 3 and the second main keel 4 are fixed. The total station is used for tracking and control. After the positions of the first main keel 3 and the second main keel 4 meet the design requirements, they are temporarily fixed with electric welding. The reflector is measured again. After the coordinate point requirements are met, full welding can be carried out. During the assembly process, the total station is used for tracking and re-measurement. The irregular aluminum plate 2 is installed by connecting and fixing it to the secondary keel 5 according to the drawing requirements. The irregular aluminum plate 2 is connected to the secondary keel 5 through an adjustable L-shaped angle bracket, which can adjust the installation deviation of the aluminum plate and ensure that the aluminum plates are smooth and arc-shaped.

[0025] Beneficial effects: By scanning and modeling the building, the large keel of the aluminum panel curtain wall frame is divided into the first main keel 3, the second main keel 4, and the secondary keel 5. Each of the first main keel 3, the second main keel 4, and the secondary keel 5 is numbered. According to the model, the first main keel 3, the second main keel 4, and the secondary keel 5 are processed and manufactured one by one according to the number. The first through hole 31 and the second through hole 41 are opened in the first main keel 3 and the second main keel 4, respectively, to install the sliding secondary keel 5. This makes it easier for users to fine-tune the irregular aluminum panel 2 when installing it on the secondary keel 5, which can improve work efficiency, save costs, and make the gaps of the irregular aluminum panel 2 smoother after installation.

Claims

1. A construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall, characterized in that, Includes the following steps: A three-dimensional parametric BIM model is established by using a three-dimensional laser scanner to emit laser beams at the object to acquire a large amount of point cloud data, and then processing and modeling the point cloud data. The design is further refined by refining the model after modeling, exporting detailed drawings of steel components and parts, splitting the large keel into the first main keel (3), the second main keel (4) and the secondary keel (5), and numbering each of the first main keel (3), the second main keel (4) and the secondary keel (5); The skeleton is made by processing the first main keel (3), the second main keel (4) and the secondary keel (5) one by one according to the model number. According to the assembly drawings, the layout points of the jig are laid out on the hardened assembly site using a total station. The three-dimensional assembly jig is erected and the first main keel (3), the second main keel (4) and the secondary keel (5) are pre-assembled and assembled using a total station for layout and positioning. The frame is installed by positioning and welding the lower ends of the first main keel (3) and the second main keel (4) to the rear embedded parts, and at the same time, the secondary keel (5) is installed on the first main keel (3) and the second main keel (4); For aluminum plate installation, connect and fix the irregular aluminum plate (2) to the secondary keel (5) according to the drawing requirements; The secondary keel (5) is movably installed inside the first main keel (3) and the second main keel (4), and the secondary keel (5) is located between two adjacent first main keels (3) and two adjacent second main keels (4); The first main keel (3) and the second main keel (4) are respectively provided with a plurality of first through holes (31) and second through holes (41); The secondary keel (5) includes a frame (51) and connecting rods (52) fixedly installed around the frame (51). Two symmetrical connecting rods (52) are slidably installed inside the first through holes (31) of two adjacent first main keels (3), and the other two symmetrical connecting rods (52) are slidably installed inside the second through holes (41) of two adjacent second main keels (4). The bottom of the first main keel (3) and the second main keel (4) are fixedly connected to the bottom support through embedded parts.

2. The construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall according to claim 1, characterized in that, The tops of the first main keel (3) and the second main keel (4) are fixedly connected to the upper ring beam (1) through connectors (6).

3. The construction method for a large-panel flexible connection frame of a twisted aluminum panel curtain wall according to claim 2, characterized in that, The connector (6) includes a connecting plate (61), on one side of which two clamps (62) are fixedly installed. The two clamps (62) are installed on both sides of the first main keel (3) and are fixedly connected to the first main keel (3) by fixing bolts (63).

4. The construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall according to claim 3, characterized in that, A fixing rod (65) for connecting the upper ring beam (1) is fixedly installed on the other side of the connecting plate (61). A plurality of ribs (66) for strengthening the connection effect between the fixing rod (65) and the connecting plate (61) are fixedly installed on the outer surface of the fixing rod (65).

5. The construction method for a large-panel flexible connection frame of a twisted aluminum panel curtain wall according to claim 1, characterized in that, in During the skeleton manufacturing process, the first main keel (3) and the second main keel (4) are cut, bent, and welded in sections. The keels cut in sections are placed in the jig, the bending dimensions are remeasured, and they are fixed with steel wedges. The keels are then fully welded at the bending points.

6. A construction method for a flexible connection frame for large panels of twisted aluminum panel curtain wall according to any one of claims 1-5, characterized in that, The irregularly shaped aluminum plate is connected to the secondary keel (5) via an adjustable L-shaped angle bracket.

Images