Method for installing an arc-shaped steel plate wall along a height

Abstract

The application discloses an installation method of an arc-shaped steel plate wall along height, and comprises the following steps: S1, segmental assembly of the steel plate wall; S2, installation of an adjusting device on the bending side of the installed segment of the steel plate wall; S3, installation of a U-shaped operation platform on the bending side of the installed segment of the steel plate wall; S4, segmental hoisting of the steel plate wall, one end of the chain is connected with the operation channel through the first steel wire rope, and the other end is connected with the top of the to-be-installed hidden column through the second steel wire rope; S5, the worker adjusts the chain corresponding to the to-be-installed hidden column in the operation channel, and accurately adjusts the to-be-installed hidden column; and S6, after the installed segment of the steel plate wall and the to-be-installed segment of the steel plate wall are connected through the connecting plate, the hidden column and the arc-shaped steel plate are welded in the U-shaped operation platform and the operation channel. The application combines the hidden column with the arc-shaped steel plate, installs the hidden column together with the arc-shaped steel plate, improves the deformation resistance of the steel plate wall, and adopts the fine-adjustable supporting and correcting means, so that the construction precision is ensured.

Description

Technical Field

[0001] This invention relates to the technical field of steel structure installation, and in particular to a method for installing a steel plate wall with an arc shape along its height. Background Technology

[0002] A steel plate wall is a wall structure made of steel plates and steel columns. Existing steel plate walls are generally set vertically, and their center of gravity remains constant from bottom to top. Usually, after the steel columns are installed, steel plates are installed between the steel columns to form a steel plate wall.

[0003] In an art center project, the overall structure is an inwardly curved outer casing, and the steel plate shear wall structure is also an inwardly curved structure. The curved part of the steel plate shear wall bends inward with the overall curvature of the structure. Deformation and eccentricity during the installation of the steel plate shear wall lead to excessive bending moments. In addition, the steel plate is relatively thin and has a large curvature, making it prone to deformation during construction. The installation accuracy requirements are extremely high. Currently, in traditional construction, guy ropes are generally used to control the structural deformation of the steel plate shear wall. Guy rope installation requires the addition of anchor points on the ground for fixation. For the construction of large-scale curved steel plate walls, this indirectly increases the workload of installing pre-embedded anchor points. At the same time, this steel structure project has many overlapping construction procedures with civil engineering, which increases the difficulty of guy rope installation and the length of the guy ropes, indirectly increasing construction costs, construction difficulty and safety risks. The existing vertical steel plate wall installation method cannot meet the above problems. In view of the above problems, this application provides a method for installing curved steel plate walls along the height. Summary of the Invention

[0004] To address the above problems, the present invention provides a method for installing a steel plate wall with an arc shape along its height.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention discloses a method for installing a steel plate wall that is curved along its height, comprising the following steps:

[0007] S1: The steel plate wall is assembled in sections. Each section of the steel plate wall includes an arc-shaped steel plate and hidden columns fixed on both sides of the arc-shaped steel plate.

[0008] S2: Install a worker access passage on the curved side away from the installed steel plate wall section, and install inclined support round pipes between the worker access passage and the installed steel plate wall section;

[0009] S3: Install a U-shaped operating platform on the curved side of the installed steel plate wall. The end of the U-shaped operating platform is connected to the worker passage. The curved steel plate and the hidden column are located in the operating space enclosed by the U-shaped operating platform and the worker passage.

[0010] S4: Install the steel plate wall section by section. Hoist the section of steel plate wall to be installed to the top of the already installed section of steel plate wall. Use connecting plates to hinge the steel plate wall to be installed to the corresponding concealed column on the already installed steel plate wall.

[0011] One end of the chain hoist is connected to the worker access via the first wire rope, and the other end is connected to the top of the concealed column to be installed via the second wire rope.

[0012] S5: Workers adjust and position the hidden columns to be installed precisely by adjusting the chain hoists corresponding to the columns to be installed in the work passage.

[0013] S6: Keep the chain hoist taut and weld the concealed column and curved steel plate.

[0014] This invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, after each section of the steel plate wall is welded, the point cloud coordinates of the installed steel plate wall surface are obtained by three-dimensional scanning technology. By comparing with the design model, a chromatographic deviation map is generated. By comparing the point cloud data before and after welding, high-risk areas are located, providing guidance for subsequent control of the steel plate wall installation process and the amount of deformation after welding.

[0015] The present invention provides a method for installing a steel plate wall with an arc shape along its height. Furthermore, high-risk areas are identified, and a reverse deformation amount is reserved during the assembly of each section of the steel plate wall.

[0016] The present invention discloses an installation method for an arc-shaped steel plate wall along its height. Further, when connecting the upper and lower sections of the steel plate wall, connecting plates are used on both sides of the joint of the arc-shaped steel plate for fixing and constraint, and a hydraulic clamp is used to finely control the displacement of the arc-shaped steel plate.

[0017] The present invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, a fixed support is installed on the already installed section of the steel plate wall, and a hydraulic clamp is installed on the fixed support to adjust the arc-shaped steel plate to be installed.

[0018] The present invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, in step S1, after the concealed column is connected to the arc-shaped steel plate, the whole structure is hoisted.

[0019] The present invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, in step S6, the concealed column is welded first, and then the arc-shaped steel plate is welded.

[0020] This invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, each segment of the arc-shaped steel plate is provided with a lug plate for connecting with a connecting plate. In step S4, a positioning arc plate adapted to the arc of the steel plate wall is installed at the lug plate on the side of the installed arc-shaped steel plate. When hoisting the steel plate wall to be installed, the steel plate to be installed is attached to the positioning arc plate to perform preliminary positioning of the steel plate wall to be installed. Then, by adjusting the chain hoist, the position of the hidden column to be installed is adjusted to perform precise positioning of the steel plate wall to be installed.

[0021] The present invention discloses a method for installing a steel plate wall with an arc shape along its height. Further, the positioning arc plate is bolted to the ear plate. After the steel plate wall to be installed is positioned, the hidden column to be installed is first connected to the already installed hidden column through the connecting plate; then the positioning arc plate is removed, and the arc steel plate is connected through the connecting plate.

[0022] This invention provides a method for installing a steel plate wall that is curved along its height. Further, the worker access passage includes:

[0023] Horizontal support tubes are installed in pairs at the top of two installed concealed columns;

[0024] Channel steel is installed on horizontal support pipes along the length of the steel plate wall. Patterned steel plates are laid on the channel steel to form a passage for workers along the length of the steel plate wall.

[0025] Safety bars are installed along the perimeter of the workers' access route, and safety ropes are strung between the safety bars to form a safety protection component.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. This application combines concealed columns with curved steel plates, allowing them to be installed together, which improves the deformation resistance of the steel plate wall. Furthermore, the use of finely adjustable support and correction methods ensures precise construction accuracy and avoids the need for extensive scaffolding, thus improving construction progress, reducing space occupation, and enabling efficient collaborative work among various processes. In addition, this application is reusable, ensuring the safety of construction personnel working on the platform, effectively reducing the need for external anchor points, shortening the length of guy ropes, and significantly reducing construction time and costs.

[0028] 2. By setting an adjustment device on the outside of the installed steel plate wall, the hidden column to be installed can be precisely adjusted to ensure its installation accuracy. By installing the hidden column and the curved steel plate together, the curved steel plate can be adjusted by adjusting the hidden column, making calibration more convenient and avoiding the problem of the curved steel plate being difficult to align.

[0029] 3. By setting up a U-shaped operating platform, the construction is made more convenient by avoiding the need to erect scaffolding on the inside of the steel plate wall to form an installation platform;

[0030] 4. During installation, a positioning arc plate is used to initially position the arc-shaped steel plate to achieve coarse positioning of the concealed column to be installed. Then, the adjustment device is used to accurately position the concealed column and the arc-shaped steel plate to be installed, ensuring installation efficiency and accuracy.

[0031] 5. By combining 3D scanning technology to acquire high-precision data of the installed curved steel plate wall, the surface dimensions of the component can be accurately reproduced. By comparing with the design model, a chromatographic deviation chart is generated, enabling real-time quantitative analysis and thus precise control over the deformation of the steel plate wall during installation and after welding.

[0032] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a side view of the present invention;

[0035] Figure 3 This is a schematic diagram of the steel plate wall assembly of the present invention;

[0036] Figure 4 This is a schematic diagram of the adjustment of the arc-shaped steel plate of the present invention.

[0037] Figure label:

[0038] 1. Installed steel plate wall section; 2. Adjustment device; 2.1. Horizontal support round pipe; 2.2. Channel steel; 2.3. Patterned steel plate; 2.4. Safety bar; 2.5. Safety rope; 2.6. Inclined support round pipe; 2.7. First wire rope; 2.8. Second wire rope; 2.9. Chain hoist; 3. Installed concealed column; 4. U-shaped operating platform; 5. Support rods; 6. Steel plate wall section to be installed; 7. Ear plate; 8. Scissor brace; 9. Steel plate to be installed; 10. Concealed column to be installed; 11. Installed curved steel plate; 12. Fixed support; 13. Hydraulic clamp. Detailed Implementation

[0039] like Figures 1-4 As shown, this invention discloses a method for installing a steel plate wall with an arc shape along its height, comprising the following steps:

[0040] S1: Since the steel plate shear wall structure of this application is an inwardly inclined arc structure, the arc part of the steel plate shear wall bends inward with the overall arc of the structure. The deformation and eccentricity of the steel plate shear wall during installation lead to excessive bending moment. In addition, the steel plate has characteristics such as small thickness and large arc, which make it easy to deform during construction. Therefore, the hidden column and the arc steel plate are connected as a whole to form a steel plate wall, so that the hidden column and the arc steel plate are hoisted together. This makes it easier to control the arc of the arc steel plate and reduce the problem of easy deformation of the arc steel plate during installation.

[0041] In addition, dividing the steel plate wall into multiple sections and welding them together can further reduce the problem of deformation during installation due to the large curvature of the steel plate wall.

[0042] S2: After the first section of steel plate wall is installed, an adjustment device 2 is installed on the curved side away from the installed section of steel plate wall 1. The specific steps are as follows: horizontal support pipes 2.1 are fixedly connected to the top of the two installed concealed columns 3 respectively. Two horizontal support pipes 2.1 are installed for each installed concealed column 3. Channel steel 2.2 is installed on the horizontal support pipes 2.1 along the length of the steel plate wall. Patterned steel plates 2.3 are laid on the channel steel 2.2 to form a worker passage spanning the steel plate wall. Safety rods 2.4 are welded to the channel steel along the perimeter of the worker passage. Safety ropes 2.5 are strung between the safety rods 2.4 to form a safety protection component.

[0043] An inclined support tube 2.6 is installed below the horizontal support tube 2.1 on the already installed concealed column 3. One end of the inclined support tube 2.6 is connected to the already installed concealed column 3, and the other end is connected to the end of the horizontal support tube 2.1 away from the already installed concealed column 3, thus completing the installation of the adjustment device 2. The already installed concealed column 3, the inclined support tube 2.6 and the horizontal support tube 2.1 form a triangular stable structure.

[0044] Specifically, the end of the inclined support circular tube 2.6 is provided with a two-way connecting plate, and the end of the horizontal support circular tube 2.1 is provided with a one-way connecting plate. The one-way connecting plate is inserted into the two-way connecting plate and the nodes are reinforced by pins.

[0045] Two steel plates are welded at 300mm intervals on the channel steel 2.2 at the outer end of the worker passage. A horizontal round pipe is connected between the steel plates. The horizontal round pipe is connected to the first wire rope 2.7 through a shackle. An oblong steel plate is bolted to the connecting plate at the top of the hidden column 10 to be installed. The oblong steel plate is connected to the second wire rope 2.8 through a shackle.

[0046] S3: Hoist the U-shaped operating platform 4 to the curved side of the installed steel plate wall 1. The U-shaped operating platform 4 is set along the length of the installed steel plate wall 1. The end of the U-shaped operating platform 4 is bolted to the horizontal support round pipe 2.1. The arc-shaped steel plate and the hidden column are located in the operating space enclosed by the U-shaped operating platform 4 and the worker passage.

[0047] In addition, a support rod 5 is installed inside the U-shaped operating platform 4. The support rod 5 is connected to the installed hidden column 3 to assist in fixing the U-shaped operating platform 4.

[0048] S4: Install the steel plate wall section by section. Hoist the steel plate wall 6 to be installed to the upper end of the steel plate wall 1 that has been installed. After roughly adjusting and positioning the steel plate wall 6 to be installed, connect the steel plate wall 1 that has been installed and the steel plate wall 6 to be installed through the connecting plate. Connect one end of the chain hoist 2.9 to the worker passage through the first wire rope 2.7, and connect the other end to the top of the hidden column 10 to be installed through the second wire rope 2.8.

[0049] Specifically, each segment of the curved steel plate is provided with an ear plate 7 for connecting with the connecting plate. The rough adjustment is to install a positioning arc plate that matches the curvature of the steel plate wall at the ear plate 7 on the side where the curved steel plate 11 has been installed. When hoisting the steel plate 9 wall to be installed, the steel plate 9 to be installed is attached to the positioning arc plate to perform rough positioning of the steel plate 9 wall to be installed.

[0050] The positioning arc plate is bolted to the ear plate 7. After the steel plate 9 to be installed is positioned on the wall, the hidden column 10 to be installed is first connected to the installed hidden column 3 through the connecting plate; then the positioning arc plate is removed and the arc-shaped steel plate is connected through the connecting plate.

[0051] S5: The worker pulls the chain hoist 2.9 in the work passage to precisely adjust and position the hidden column 10 to be installed; while the chain hoist 2.9 is adjusting the position of the hidden column 10 to be installed, the total station is used to measure whether the installation position of the hidden column 10 to be installed is accurate. After the adjustment is completed, the chain hoist 2.9 is kept taut.

[0052] S6: The operator first performs the welding of the concealed column in the U-shaped operating platform 4 and the operator's passage, and then performs the welding of the arc-shaped steel plate.

[0053] Furthermore, a scissor brace 8 is connected between the two horizontal support tubes 2.1. The scissor brace 8 is located at the lower part of the channel steel 2.2 to enhance the stability of the workers' passage.

[0054] After each section of the steel plate wall is welded, the point cloud coordinates of the installed steel plate wall surface are obtained through 3D scanning technology. By comparing with the design model, a chromatographic deviation map is generated. By comparing the point cloud data before and after welding, the residual stress distribution is analyzed, high-risk areas are located, and guidance is provided for subsequent control of the steel plate wall installation process and the amount of deformation after welding.

[0055] The high-risk areas are those with excessive deformation after welding. The high-risk areas are located, and a reverse deformation amount is reserved during the assembly of each steel plate wall. When the upper and lower steel plate walls are connected, connecting plates are used on both sides of the joint of the arc-shaped steel plate for fixing and constraint. Then, hydraulic clamps are used to finely control the displacement of the arc-shaped steel plate.

[0056] Install fixed supports on the pre-installed steel plate wall, and install hydraulic clamps on the fixed supports to adjust the curved steel plate to be installed. The hydraulic clamps can be jacks.

[0057] By using 3D scanning technology for steel structures, the surface coordinates of the installed curved steel plate wall can be obtained in a non-contact manner with millions of point cloud coordinates, with an accuracy of millimeters. By comparing with the design model, a chromatographic deviation map is generated to achieve real-time quantitative analysis, thereby precisely controlling the deformation of the steel plate wall during installation and after welding.

[0058] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for installing a steel plate wall with an arc shape along its height, characterized in that, Includes the following steps: S1: The steel plate wall is assembled in sections. Each section of the steel plate wall includes an arc-shaped steel plate and hidden columns fixed on both sides of the arc-shaped steel plate. S2: Install a worker access passage on the curved side away from the installed steel plate wall (1), and install an inclined support round pipe (2.6) between the worker access passage and the installed steel plate wall (1). S3: Install a U-shaped operating platform (4) on the curved side of the installed steel plate wall (1). The end of the U-shaped operating platform (4) is connected to the worker passage. The arc-shaped steel plate and the hidden column are located in the operating space enclosed by the U-shaped operating platform (4) and the worker passage. S4: Install the steel plate wall section by section. The steel plate wall (6) to be installed is installed on the upper end of the steel plate wall (1) that has been installed. The steel plate wall (6) to be installed is connected to the corresponding hidden column on the steel plate wall (1) by using a connecting plate. One end of the chain hoist (2.9) is connected to the worker access via the first wire rope (2.7), and the other end is connected to the top of the hidden column (10) to be installed via the second wire rope (2.8). Each segment of the arc-shaped steel plate is provided with an ear plate (7) for connecting with the connecting plate. A positioning arc plate adapted to the arc of the steel plate wall is installed at the ear plate (7) on the side of the installed arc-shaped steel plate (11). When hoisting the section of the steel plate wall (6) to be installed, the steel plate (9) to be installed is attached to the positioning arc plate to perform preliminary positioning of the section of the steel plate wall (6). Then, by adjusting the chain hoist (2.9), the position of the hidden column (10) to be installed is adjusted to perform precise positioning of the section of the steel plate wall (6). The positioning arc plate is bolted to the ear plate (7). After the steel plate (9) to be installed is positioned, the hidden column (10) to be installed is first connected to the installed hidden column (3) via the connecting plate. Then, the positioning arc plate is removed, and the arc-shaped steel plate is connected via the connecting plate. S5: The staff adjusts and positions the hidden column (10) to be installed precisely by adjusting the chain hoist (2.9) corresponding to the hidden column (10) to be installed in the worker passage; S6: Keep the chain hoist (2.9) taut and weld the hidden column and the arc-shaped steel plate. After each section of the steel plate wall is welded, the point cloud coordinates of the installed steel plate wall surface are obtained by three-dimensional scanning technology. By comparing with the design model, a chromatographic deviation map is generated. By comparing the point cloud data before and after welding, high-risk areas are located, which provides guidance for controlling the installation process of the steel plate wall and the deformation after welding. When connecting the upper and lower sections of the steel plate wall, connecting plates are used on both sides of the arc-shaped steel plate wall docking part for fixed constraint. Then, hydraulic clamps are used to finely control the displacement of the arc-shaped steel plate.

2. The method for installing a steel plate wall with an arc shape along its height according to claim 1, characterized in that, High-risk areas are identified, and reverse deformation is reserved during the assembly of each section of steel plate wall.

3. The method for installing a steel plate wall with an arc shape along its height according to claim 1, characterized in that, Install a fixed support on the installed steel plate wall (1), and install a hydraulic clamp on the fixed support to adjust the steel plate (9) to be installed.

4. The method for installing a steel plate wall with an arc shape along its height according to claim 1, characterized in that, In step S1, after the concealed column is connected to the curved steel plate, the whole structure is hoisted.

5. The method for installing a steel plate wall with an arc shape along its height according to claim 1, characterized in that, In step S6, the hidden column is welded first, and then the arc-shaped steel plate is welded.

6. The method for installing a steel plate wall with an arc shape along its height according to claim 1, characterized in that, The personnel access route includes: A horizontal support tube (2.1) is installed in pairs at the top of two installed concealed columns (3); Channel steel (2.2) is installed on horizontal support round pipe (2.1) along the length of the steel plate wall. Patterned steel plate (2.3) is laid on channel steel (2.2) to form a passage for workers along the length of the steel plate wall. Safety bars (2.4) are installed along the perimeter of the workers' passageway, and safety ropes (2.5) are strung between the safety bars (2.4) to form a safety protection component.

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