Sawtooth-shaped glass curtain wall steel keel unit type installation method

Abstract

The invention provides a zigzag glass curtain wall steel keel unit type installation method. The method comprises the following specific steps that S1, design modeling is conducted; s2, performing factory digital laser cutting on the components; s3, keel units are welded, specifically, a welding platform support is manufactured according to the size of each unit plate, part unit profiles are cut through laser and put into the welding support to be welded and assembled, and after being welded, the keel units are transported to a material storage yard through a hoisting platform to be stacked in a unified mode; s4, hoisting a unit steel keel: transporting a keel unit to an operation floor by adopting a truck crane, carrying out pay-off control on the floor by adopting a vertical keel and an adapter measuring and mounting positioner, controlling the plate keel to assist in positioning through the positioner, controlling the mounting error of the zigzag curtain wall component, and welding in place at one time; and S5, digitally processing and installing the glass. By means of the method, high-precision construction of curtain wall projects with complex shapes is achieved, machining consumption is saved, the construction period is greatly shortened, and good economic and social benefits are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a unit-type installation method of a sawtooth glass curtain wall steel keel. Background Art

[0002] In recent years, personalized shapes, rich exteriors and complex designs have become synonymous with iconic buildings at home and abroad, and are deeply loved by the public. Unitized curtain walls are relatively simple and easy to design, calculate and manage; because of the simple design and calculation, they are also favored by architectural designers, but the unitized curtain wall construction organization is complex, coordination is difficult, the cost is high, the finished product is easy to damage, and the transportation cost is high. The frame curtain wall does not require high construction organization, has low transportation costs, and the processing of each component is simple, easy to operate, and easy to adjust on site, but the on-site installation period is long, the construction quality is easily affected by human factors, the allowable structural deformation capacity is poor, and the durability is poor. Summary of the invention

[0003] In view of the above problems, the present invention provides a unit installation method for a sawtooth glass curtain wall steel keel, which realizes high-precision construction of complex curtain wall projects, saves processing costs, greatly shortens construction period, and has good economic and social benefits.

[0004] To solve the above problems, the technical solution adopted by the present invention is:

[0005] A method for installing a sawtooth glass curtain wall steel keel unit comprises the following specific steps:

[0006] S1. Design modeling:

[0007] a. Overall modeling: Based on the exterior facade features of the project, modeling software is used to design and model the steel beams, transfer beams and curtain wall models;

[0008] b. Component and node model output: perform force calculations on steel wall frame components and nodes, generate design calculations, classify and number nodes and components according to the design model, and generate component and node information models and BOM tables;

[0009] S2. Digital laser cutting in component factories: All primary and secondary keels and zigzag curtain wall components are cut using tubest software, and digital laser cutting and high-precision processing are used to ensure that the angles, variable sections, and sizes meet the requirements and the quality of the butt welds is guaranteed;

[0010] S3, keel unit welding: according to the size of each unit plate, a welding platform bracket is made, and the component unit profile is cut by laser, and it is placed in the welding bracket for welding and assembly. After the keel unit is welded, it is transported to the material yard by a lifting platform for unified stacking;

[0011] S4. Unit steel keel hoisting: The keel unit is transported to the working floor by a truck crane. The vertical keel and adapter are measured and installed by the locator for line setting control. The locator controls the auxiliary positioning of the plate keel, controls the installation error of the jagged curtain wall components, and welds them in place at one time.

[0012] S5. Glass digital processing and installation:

[0013] A. Digital processing of wall units: According to the glass information model of each part, professional factory CNC processing is carried out, and labels and installation process cards are given to the original glass pieces and digital automatic packaging;

[0014] B. Spatial positioning of curtain wall units: The model coordinates are extracted to guide the spatial measurement and positioning of on-site components and unit panels, and aerial vehicles and cranes are used on-site for installation.

[0015] Preferably, the modeling software includes 3Dmax, Tekla, KCADPM, and tubest.

[0016] Preferably, the welding platform bracket includes a welding table, and three limit plates are fixedly installed on the welding table. The limit plates are arranged along the width direction of the welding table, and the first oblique limit groove and the second oblique limit groove are respectively provided at the two ends of the top of the limit plate, and a vertical limit groove is provided in the middle of the limit plate.

[0017] Preferably, the vertical keel and adapter measuring and installing locator comprises a stainless steel plate, which is triangular in shape, and the two side edges of the stainless steel plate are respectively provided with a first positioning groove, a second positioning groove, a third positioning groove and a fourth positioning groove, the first positioning groove, the third positioning groove and the fourth positioning groove are respectively opened at the triangle, and the first positioning groove, the second positioning groove and the third positioning groove are all on the same side.

[0018] Preferably, the keel unit includes three vertical square tubes, the square tubes located on both sides are respectively adapted to the first oblique limit groove and the second oblique limit groove, and are also respectively adapted to the first positioning groove and the third positioning groove, and the square tube located in the middle is adapted to the vertical limit groove and the second positioning groove.

[0019] Preferably, in S4, after the main keel of the outer frame is installed, the keel of the inner frame of the curtain wall is installed, and finally the weld is polished, and anti-rust, anti-corrosion and surface treatment are performed.

[0020] Preferably, in S5, for the installation process of curtain wall glass:

[0021] a. Measurement and positioning: Establish a high-precision construction control network, extract installation positioning points from the model, and use the total station to accurately locate and mark the positioning points;

[0022] b. Installation of curtain wall glass units: Use glass suction cups to tighten the curtain wall glass units with given labels, and use a car crane to lift them to the installation location. Construction workers on the hanging basket hold the suction cups to put the glass into the corresponding position. After the curtain wall glass units are in place, they are promptly fixed with fasteners. After checking that they are correct, apply sealant.

[0023] The beneficial effects of the present invention are:

[0024] 1. Aiming at the zigzag glass curtain wall project with complex facade, the present invention adopts forward design modeling, digital production integrated assembly, improved frame curtain wall construction technology, and changes the conventional frame-type loose assembly and welding method to on-site unit-type overall assembly and then hoisting connection and other technical methods, thereby forming a zigzag glass curtain wall steel keel unit installation construction method, realizing high-precision construction of complex curtain wall projects, saving processing costs, greatly shortening construction period, and having good economic and social benefits.

[0025] 2. The steel keel was modeled and BIM+tubest software was used for in-depth design and laser cutting. The components were centrally cut and processed in the factory to form component units, which successfully solved the difficulties in raw material cutting angles and cross-sectional size control during the keel processing.

[0026] 3. According to the curtain wall keel design drawings, the keel is split into an assembly unit according to the layer height and plate, and an assembly welding platform is developed based on the structural characteristics of the keel unit. The platform limits the angle, displacement and deformation of the keel through multiple limit slots to ensure that the thermal deformation of the steel keel is within the allowable range of the specification. The platform is used on site to place the keel component unit on the qualitative platform for assembly, fixing and welding.

[0027] 4. During the hoisting process, a vertical keel and adapter measurement and installation locator is developed. The locator is developed based on the characteristics of the sawtooth curtain wall and is made of stainless steel material through precise lofting and laser cutting. The locator limits the keel unit angle through multiple positioning holes and sockets, which improves the installation accuracy and construction convenience. The keel is installed once and for all, avoiding rework of the glass. The one-time installation and forming of the keel perfectly controls the cumulative construction error of the sawtooth keel, saves the overall curtain wall cost, and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a flow chart of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the assembly welding platform proposed by the present invention;

[0030] Figure 3 This is a schematic diagram of the positioner structure proposed by the present invention.

[0031] In the figure: 1 welding table, 2 limiting plate, 21 first oblique limiting groove, 22 vertical limiting groove, 23 second oblique limiting groove, 3 stainless steel plate, 31 first positioning groove, 32 second positioning groove, 33 third positioning groove, 34 fourth positioning groove. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] Reference Figure 1-3 , a sawtooth glass curtain wall steel keel unit installation method, comprising the following specific steps:

[0035] S1. Design modeling:

[0036] a. Overall modeling: Based on the exterior facade features of the project, 3Dmax, Tekla, KCADPM, tubest and other software are used for design and modeling to establish steel beams, transfer beams and curtain wall models;

[0037] b. Component and node model output: perform force calculations on steel wall frame components and nodes, generate design calculations, classify and number nodes and components according to the design model, and generate component and node information models and BOM tables;

[0038] S2. Digital laser cutting in component factories: primary and secondary keels and zigzag curtain wall components are cut using tubest software, and digital laser cutting and high-precision processing are used to ensure that the angles, variable sections, and sizes meet the requirements and the quality of the butt welds is guaranteed;

[0039] BIM+tubest software was used for in-depth design and laser cutting. The components were cut and processed centrally in the factory to form component units, successfully solving the difficulties in raw material cutting angles, cross-sectional size control, and other issues during the processing of the keel.

[0040] S3, keel unit welding: according to the size of each unit plate, a welding platform bracket is made, and the component unit profile is cut by laser, and it is placed in the welding bracket for welding and assembly. After the keel unit is welded, it is transported to the material yard by a lifting platform for unified stacking;

[0041] According to the curtain wall keel design drawings, the keel is split into an assembly unit according to the floor height and plate, and an assembly welding platform is developed in combination with the structural characteristics of the keel unit. The platform limits the angle, displacement and deformation of the keel through multiple limit slots to ensure that the thermal deformation of the steel keel is within the allowable range of the specification. The platform is used on site to place the keel component unit on the qualitative platform for assembly, fixing and welding.

[0042] S4. Unit steel keel hoisting: The keel unit is transported to the working floor by a truck crane. The vertical keel and adapter are measured and installed by the locator for line control. The locator controls the auxiliary positioning of the plate keel to control the installation error of the jagged curtain wall components. The components are welded in place at one time. After the main keel of the outer frame is installed, the keel of the inner frame of the curtain wall is installed. Finally, the weld is polished, and anti-rust, anti-corrosion and surface treatment are done.

[0043] During the hoisting process, a vertical keel and adapter measurement and installation locator was developed. The locator was developed based on the characteristics of the sawtooth curtain wall and is made of stainless steel with precise patterning and laser cutting. The locator limits the keel unit angle through multiple positioning holes and sockets, which improves the installation accuracy and construction convenience. The keel is installed in one go, avoiding rework of the glass. The one-time installation and forming of the keel perfectly controls the cumulative construction error of the sawtooth keel, saving the overall curtain wall cost and reducing the construction cost.

[0044] S5. Glass digital processing and installation:

[0045] A. Digital processing of wall units: According to the glass information model of each part, professional factory CNC processing is carried out, and labels and installation process cards are given to the original glass pieces and digital automatic packaging;

[0046] B. Spatial positioning of curtain wall units: The model coordinates are extracted to guide the spatial measurement and positioning of on-site components and unit plates, and aerial vehicles and cranes are used on-site for installation;

[0047] a. Measurement and positioning: Establish a high-precision construction control network, extract installation positioning points from the model, and use the total station to accurately locate and mark the positioning points;

[0048] b. Installation of curtain wall glass units: Use glass suction cups to tighten the curtain wall glass units with given labels, and use a car crane to lift them to the installation location. Construction workers on the hanging basket hold the suction cups to put the glass into the corresponding position. After the curtain wall glass units are in place, they are promptly fixed with fasteners. After checking that they are correct, apply sealant.

[0049] Specifically, the welding platform bracket includes a welding platform 1, and three limit plates 2 are fixedly installed on the welding platform 1. The limit plates 2 are arranged along the width direction of the welding platform 1. The top ends of the limit plates 2 are respectively provided with a first oblique limit groove 21 and a second oblique limit groove 23, and the middle of the limit plate 2 is provided with a vertical limit groove 22. The vertical keel and adapter measurement and installation locator includes a stainless steel plate 3, which is triangular in shape. The two sides of the stainless steel plate 3 are respectively provided with a first positioning groove 31, a second positioning groove 32, a third positioning groove 33 and a fourth positioning groove 34. The first positioning groove 31, the third positioning groove 33 and the fourth positioning groove 34 are respectively opened at the triangle, and the first positioning groove 31, the second positioning groove 32 and the third positioning groove 33 are all on the same side.

[0050] Specifically, the keel unit includes three vertical square tubes. The square tubes on both sides are respectively adapted to the first oblique limit groove 21 and the second oblique limit groove 23, and are also respectively adapted to the first positioning groove 31 and the third positioning groove 33. The square tube in the middle is adapted to the vertical limit groove 22 and the second positioning groove 32. The angle, displacement and deformation of the keel are limited by multiple limit grooves to ensure that the thermal deformation of the steel keel is within the allowable range of the specification.

[0051] When the welding platform bracket is in use, the three square tubes are placed in the first oblique limit groove 21, the second oblique limit groove 23 and the vertical limit groove 22 respectively to limit the angle, displacement and deformation of the keel and ensure that the thermal deformation of the steel keel is within the allowable range of the specification. The platform is used on site to place the keel component unit on the qualitative platform for assembly, fixing and welding, and controlling the error during the overall welding installation to ensure the splicing angle.

[0052] The vertical keel and adapter measurement and installation locator is made of stainless steel material through precise patterning and laser cutting. The locator limits the unit keel angle through the first locating groove 31, the second locating groove 32, and the third locating groove 33. The fourth locating groove 34 is used to connect the corresponding side tube of the previous keel unit, which improves the installation accuracy and construction convenience, and the keel can be installed in one go.

[0053] Through forward design modeling, digital production integrated assembly, and improved frame curtain wall construction technology, the conventional frame-type loose assembly and welding method was changed to on-site unit-type overall assembly and then hoisting connection. A sawtooth glass curtain wall steel keel unit installation construction method was formed, which achieved high-precision construction of complex curtain wall projects, saved processing costs, greatly shortened construction period, and had good economic and social benefits.

[0054] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for installing a sawtooth glass curtain wall steel keel unit, characterized in that: The specific steps include: S1. Design modeling: a. Overall modeling: Based on the exterior facade features of the project, modeling software is used to design and model the steel beams, transfer beams and curtain wall models; b. Component and node model output: perform force calculations on steel wall frame components and nodes, generate design calculations, classify and number nodes and components according to the design model, and generate component and node information models and BOM tables; S2. Digital laser cutting in component factories: All primary and secondary keels and zigzag curtain wall components are cut using tubest software, and digital laser cutting and high-precision processing are used to ensure that the angles, variable sections, and sizes meet the requirements and the quality of the butt welds is guaranteed; S3, keel unit welding: according to the size of each unit plate, a welding platform bracket is made, and the component unit profile is cut by laser, and it is placed in the welding bracket for welding and assembly. After the keel unit is welded, it is transported to the material yard by a lifting platform for unified stacking; S4. Unit steel keel hoisting: The keel unit is transported to the working floor by a truck crane. The vertical keel and adapter are measured and installed by the locator for line setting control. The locator controls the auxiliary positioning of the plate keel, controls the installation error of the jagged curtain wall components, and welds them in place at one time. S5. Glass digital processing and installation: A. Digital processing of wall units: According to the glass information model of each part, professional factory CNC processing is carried out, and labels and installation process cards are given to the original glass pieces and digital automatic packaging; B. Spatial positioning of curtain wall units: The model coordinates are extracted to guide the spatial measurement and positioning of on-site components and unit panels, and aerial vehicles and cranes are used on-site for installation.

2. A method for installing a sawtooth glass curtain wall steel keel unit according to claim 1, characterized in that: The modeling software includes 3Dmax, Tekla, KCADPM, and tubest.

3. The method for installing a sawtooth glass curtain wall steel keel unit according to claim 1, characterized in that: The welding platform bracket comprises a welding platform (1), three limit plates (2) are fixedly mounted on the welding platform (1), the limit plates (2) are arranged along the width direction of the welding platform (1), the top ends of the limit plates (2) are respectively provided with a first oblique limit groove (21) and a second oblique limit groove (23), and the middle part of the limit plate (2) is provided with a vertical limit groove (22).

4. The method for installing a sawtooth glass curtain wall steel keel unit according to claim 3, characterized in that: The vertical keel and adapter measuring and installing locator comprises a stainless steel plate (3), the stainless steel plate (3) is triangular in shape, and two sides of the stainless steel plate (3) are respectively provided with a first locating groove (31), a second locating groove (32), a third locating groove (33) and a fourth locating groove (34), the first locating groove (31), the third locating groove (33) and the fourth locating groove (34) are respectively opened at the triangular position, and the first locating groove (31), the second locating groove (32) and the third locating groove (33) are all located on the same side.

5. The method for installing a sawtooth glass curtain wall steel keel unit according to claim 4, characterized in that: The keel unit comprises three vertical square tubes, the square tubes located on both sides are respectively adapted to the first oblique limiting groove (21) and the second oblique limiting groove (23), and are also respectively adapted to the first positioning groove (31) and the third positioning groove (33), and the square tube located in the middle is adapted to the vertical limiting groove (22) and the second positioning groove (32).

6. The method for installing a sawtooth glass curtain wall steel keel unit according to claim 1, characterized in that: In S4, after the main keel of the outer frame is installed, the inner frame keel of the curtain wall is installed, and finally the weld is polished, and anti-rust, anti-corrosion and surface treatment are done.

7. The method for installing a sawtooth glass curtain wall steel keel unit according to claim 1, characterized in that: In S5, the installation process of curtain wall glass is as follows: a. Measurement and positioning: Establish a high-precision construction control network, extract installation positioning points from the model, and use the total station to accurately locate and mark the positioning points; b. Installation of curtain wall glass units: Use glass suction cups to tighten the curtain wall glass units with given labels, and use a car crane to lift them to the installation location. Construction workers on the hanging basket hold the suction cups to put the glass into the corresponding position. After the curtain wall glass units are in place, they are promptly fixed with fasteners. After checking that they are correct, apply sealant.

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