A method of constructing a large panel of glass

Abstract

The application relates to the technical field of building curtain wall construction, in particular to a construction method of large-plate glass. The construction method of the large-plate glass comprises the following steps: S1, setting a keel control point, and establishing a coordinate control network based on the control point; S2, simulating an entire curtain wall system by adopting a computer integral space modeling method, and generating a three-dimensional installation model; S3, installing the keel according to the control point; and S4, hoisting the large-plate glass. The application solves the technical problem that the position error of the glass and the keel is caused due to the lack of an accurate construction method in the hoisting and installation process, and the overall installation precision is affected.

Description

Technical Field

[0001] This application relates to the field of building curtain wall construction technology, and more specifically, to a method for constructing large glass panels. Background Technology

[0002] In glass curtain wall installation projects, the hoisting of large glass panels is the most labor-intensive and technically demanding part. These large glass panels often weigh over 400 kg, especially in swimming pool areas where the weight can exceed 500 kg. Installing these glass panels requires not only superb skills but also a high level of safety awareness and meticulous operation. Currently, the hoisting of large glass panels mainly uses cranes in conjunction with suction cups. The crane provides sufficient lifting force, while the suction cups are responsible for stably fixing the glass and preventing it from sliding or tilting during hoisting. Workers control the hoisting of the glass by operating the crane, while using tools such as suspended platforms for fixing and applying sealant. During the operation, workers need to maintain a high degree of focus and coordination to ensure that the glass is accurately installed in the predetermined position; however, the lack of precise construction methods during hoisting and installation can easily lead to positional errors between the glass and the framing, affecting the overall installation accuracy.

[0003] There is currently no effective solution to the problem that the lack of precise construction methods during hoisting and installation in related technologies can easily lead to positional errors of the glass and keel, affecting the overall installation accuracy. Summary of the Invention

[0004] The main purpose of this application is to provide a construction method for large-pane glass to solve the problem that the lack of precise construction methods during hoisting and installation can easily lead to positional errors between the glass and the keel, affecting the overall installation accuracy.

[0005] To achieve the above objectives, this application provides a method for constructing large-pane glass.

[0006] The construction method for large-pane glass according to this application includes: the length or width of the large-pane glass is not less than 2000mm; S1, setting keel control points and establishing a coordinate control network based on the control points;

[0007] S2. The entire curtain wall system is simulated using computer-aided spatial modeling, and a three-dimensional installation model is generated.

[0008] S3. Install the keel according to the control points;

[0009] S4. Hoist large glass panels onto the keel.

[0010] Furthermore, the coordinate control network includes: an external control network and an internal control network;

[0011] The external control network and the internal control network respectively perform an initial verification of the same control point to ensure that the error of the control point is within the allowable range;

[0012] After the control points of the same curtain wall component are measured, a second verification is performed according to the drawings to ensure that the control points are in a closed state.

[0013] Furthermore, step S2 includes the following steps:

[0014] S2.1 Design a keel model diagram with labeled coordinates, and test the keel model diagram;

[0015] S2.2 Based on the keel model diagram, obtain the precise coordinates of each of the control points;

[0016] S2.3. Use computer simulation to determine whether there is any interference between the control points and the structure, finishing, and other units.

[0017] Furthermore, step S4 includes the following steps:

[0018] S4.1 Before the roof structure construction is completed, the suspended platform shall be erected on the top floor;

[0019] S4.2. Large glass panels of the exterior curtain wall are hoisted using a suspended platform.

[0020] S4.3 After the roof structure is completed and the keel and large glass panels are installed, move the suspended platform to the roof.

[0021] S4.4 The glass in the inner courtyard is vertically transported using a gun carriage for installation of large glass panels;

[0022] The hoisting process includes: workers using a suspended platform to fix the equipment and apply adhesive.

[0023] Furthermore, step S3 includes the following steps:

[0024] S3.1. High-precision automatic guide total station, precision level, plumb line, and camera are used for measurement to ensure the accuracy of measurement and positioning, as well as the overall architectural effect of the curtain wall project.

[0025] S3.2 During the measurement process, auxiliary measuring point conversion devices, forced centering devices, and layout fixtures are used to ensure the accuracy of observation.

[0026] Furthermore, the control points include: plane control points that control the horizontal position and orientation of the building, and elevation control points that control the vertical position of the building or structure.

[0027] Furthermore, step S3.2 includes the following measurement steps:

[0028] S3.2.1 Select a control point and a starting direction within the field area as the starting basis for planar control;

[0029] S3.2.2 Select a unique elevation control point as the starting point for elevation control;

[0030] S3.2.3. Based on the plane control points and the engineering layout plan, establish the plane control network for the corresponding floors; and based on the elevation control points, establish the elevation control network for the corresponding floors.

[0031] Furthermore, step S3.2.3 includes the following steps:

[0032] S3.2.3.1 The plane control network and the elevation control network are controlled according to their respective levels, with higher-level networks controlling lower-level networks, and networks of the same level interconnected to form a system;

[0033] S3.2.3.2. Before each use, the control network shall be verified;

[0034] S3.2.3.3 As construction progresses, the aforementioned plane control network shall be re-measured according to the principle of importance;

[0035] S3.2.3.4 The primary control network shall be equipped with redundant control points and the protection of each point shall be strengthened; if the control points of the lower control network are damaged, they shall be restored by the higher control network.

[0036] Furthermore, based on the aforementioned three-dimensional installation model, the coordinate values ​​of the curtain wall keel installation components are given;

[0037] Extract the two control points mentioned above and below as the positioning points of the curtain wall keel;

[0038] The coordinate values ​​of each positioning point include three coordinate values: A, B, and H.

[0039] Before installation, the positioning points are projected onto the structural beams using a total station based on the site coordinates and curtain wall installation drawings.

[0040] Furthermore, each keel is installed with reference to the positioning points projected;

[0041] After installation, a total station was used for verification.

[0042] After the keel is installed, attach reflective stickers at the designated positioning points;

[0043] During the installation of curtain wall components, the control network within the building is used for coordinate verification.

[0044] After verifying that everything is correct, proceed with the installation of the next component.

[0045] In this embodiment of the application, a method of setting precise keel control points and establishing a coordinate control network is adopted. Through S1, keel control points are set and a coordinate control network is established based on the control points.

[0046] S2. Simulate the entire curtain wall system using computer-aided spatial modeling and generate a 3D installation model; S3. Install the keel according to the control points; S4. Before hoisting large glass panels, carefully check the mechanical performance of the lifting equipment and the adsorption performance of the suction cups to ensure that the suction cup adsorption force meets the adsorption requirements; S5. Hoisting large glass panels achieves the goal of ensuring the positioning accuracy of the keel and glass, thereby avoiding the technical effect of inaccurate installation due to the accumulation of errors. This solves the technical problem that the lack of precise construction methods during hoisting and installation can easily lead to positional errors of the glass and keel, affecting the overall installation accuracy. Attached Figure Description

[0047] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of the accompanying drawings are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0048] Figure 1 This is a flowchart illustrating an embodiment of this application;

[0049] Figure 2 This is a flowchart illustrating step S3 according to an embodiment of this application;

[0050] Figure 3 This is a flowchart illustrating step S3.2.3 according to an embodiment of this application. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0053] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0054] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0055] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] like Figures 1-3 As shown, this application relates to a method for constructing large-pane glass, which includes the following steps:

[0058] Large glass panels are transported using specialized steel glass frames, with the bottom of the frames tilted outwards at a 10°-15° angle on both sides. Large, extended flatbed trucks are used for transport. The glass, along with its frame, is secured to the truck as a whole. For curved glass curtain walls, the largest glass panels are 2000mm x 2700mm (2200mm x 6000mm for the swimming pool section). After arriving at the construction site, the large glass panels are lifted by crane to a location near the road for installation, facilitating the lifting operation.

[0059] S1. Set the keel control points and establish a coordinate control network based on the control points;

[0060] Coordinate control networks include: external control network and internal control network;

[0061] The external control network and the internal control network each perform an initial check on the same control point to ensure that the control point error is within the allowable range;

[0062] After the control points of the same curtain wall component are measured, a second check is performed according to the drawings to ensure that the control points are in a closed state.

[0063] S2. The entire curtain wall system is simulated using computer-aided spatial modeling, and a three-dimensional installation model is generated.

[0064] S2.1 Design a keel model drawing with labeled coordinates and test the keel model drawing;

[0065] S2.2 Based on the keel model diagram, obtain the precise coordinates of each control point to ensure the accuracy of the layout points;

[0066] S2.3. Use computer simulation to check whether there is any interference between the control points and the structural and finishing units.

[0067] S3. Install the keel according to the control points; preferably, the keel is installed strictly according to the keel layout diagram. In order to improve the efficiency and accuracy of the keel installation, the cement board keel is installed by pre-assembly.

[0068] S3.1. High-precision automatic guide total station, precision level, plumb line, and camera are used for measurement to ensure the accuracy of measurement and positioning, as well as the overall architectural effect of the curtain wall project.

[0069] S3.2 During the measurement process, auxiliary measuring point conversion devices, forced centering devices, and stakeout fixtures are used to ensure observation accuracy;

[0070] Based on the measured control points, a cement board keel model drawing is established. The keel is pre-assembled according to the model drawing, and then installed on site using an overall hoisting method. During the keel installation process, multiple measurement control points can be used for verification according to different facades.

[0071] After the keel is installed, install the inorganic cement boards. During the transportation and installation of the inorganic cement boards, pay attention to surface deformation; before installing the cement board surface material, mark the surface material control points on the keel, and ensure that each cement board is installed in accordance with the surface material distribution. Figure 1 To be continued. The cement board installation sequence is from the bottom layer to the top, depending on the different construction sections. Control points for each construction section should be marked. Any local deviations in the keel during cement board installation should be adjusted promptly to avoid cumulative deviations affecting the surface material installation effect. During installation, ensure that the joints between cement board surfaces are tight and flat.

[0072] Before hoisting large glass panels, carefully inspect the mechanical performance of the lifting equipment and the suction performance of the suction cups to ensure that the suction force meets the requirements. Crane operators and hoisting machinery workers must cooperate closely to avoid errors. All hoisting personnel must operate with care to prevent panel friction and damage. Hoisting work is near edges; workers must wear safety belts, and any small tools must be secured with ropes to prevent falling objects. When using suction cups to move the glass, ensure the suction force meets the requirements. Hoisting work is prohibited in inclement weather. Installation personnel must carefully study and implement the technical standards for glass curtain wall installation to guarantee installation quality.

[0073] S4. Hoist large glass panels onto the keel.

[0074] As can be seen from the above description, in this embodiment of the application, a method of setting precise keel control points and establishing a coordinate control network is adopted. This involves: S1, setting keel control points and establishing a coordinate control network based on these control points; S2, simulating the entire curtain wall system using computer-aided spatial modeling and generating a three-dimensional installation model; S3, installing the keel according to the control points; S4, carefully checking the mechanical performance of the lifting equipment and the suction performance of the suction cups before hoisting large glass panels to ensure that the suction force meets the requirements; and S5, hoisting large glass panels. This achieves the goal of ensuring the accurate positioning of the keel and glass, thereby avoiding inaccurate installation due to accumulated errors. Furthermore, it solves the technical problem that the lack of precise construction methods during hoisting and installation easily leads to positional errors in the glass and keel, affecting the overall installation accuracy.

[0075] Step S4 includes the following steps:

[0076] S4.1 Before the roof structure construction is completed, the suspended platform shall be erected on the top floor;

[0077] S4.2. Large glass panels of the exterior curtain wall are hoisted using a suspended platform.

[0078] S4.3 After the roof structure is completed and the keel and large glass panels are installed, move the suspended platform to the roof. After the suspended platform is moved to the roof position, the front outrigger needs to be extended outward so that the work platform can cover the required work area. For example, during the first extension, an initial outrigger distance may be set, such as 1000 mm; during the second extension, due to the need to consider the additional distance of the concrete slab protruding from the glass, the outrigger distance is increased by 400 mm, making the outrigger extension distance of the front outrigger 1400 mm.

[0079] S4.4 For the installation of large glass panels in the inner courtyard, a lifting vehicle is used for vertical transportation. Due to space limitations, traditional hoisting equipment may be inaccessible or inconvenient to operate in the inner courtyard. In such cases, a lifting vehicle, with its highly flexible arm and lifting capabilities, can be used to vertically transport large glass panels to the designated location for installation.

[0080] The hoisting process includes: workers using a suspended platform to fix and apply sealant. During the hoisting process, workers will use a suspended platform to stand on and work at height, installing large glass panels in the predetermined position and ensuring their stability, and applying sealant to the edges of the glass to ensure its sealing and waterproof performance.

[0081] Preferably, the control points include: plane control points that control the horizontal position and orientation of the building, and elevation control points that control the vertical position of the building or structure; the plane control points are used to control the horizontal position and orientation of the building to ensure that the various parts of the building are placed horizontally and accurately aligned; the elevation control points are used to control the vertical position of the building or structure to ensure the height of each part and the verticality of the horizontal plane.

[0082] Preferably, step S3.2 includes the following measurement steps:

[0083] S3.2.1 Select a control point and a starting direction within the site area as the starting basis for horizontal control; this is used to verify the horizontal control points and elevation control points; ensuring that the selected control point and starting direction are used to verify the accuracy of the horizontal control points and elevation control points.

[0084] S3.2.2 Select a unique elevation control point as the starting point for elevation control; through detailed control point selection and verification steps, ensure the accuracy of the plane control network and elevation control network, and improve the positioning and measurement accuracy during construction.

[0085] S3.2.3 Establish the plane control network for the corresponding floors based on the plane control points and the engineering plan layout, and establish the elevation control network for the corresponding floors based on the elevation control points;

[0086] S3.2.3.1 The horizontal control network and the vertical control network are controlled according to their respective levels, with higher-level networks controlling lower-level networks, and networks of the same level interconnected to form a system. This system helps to systematically manage control points during the construction process and ensure the consistency and coordination of the overall construction.

[0087] S3.2.3.2 Before each use, the control network shall be checked to ensure its accuracy; through initial selection and verification, the accumulation of errors shall be prevented to ensure that the control network from the site to each floor can accurately reflect the design requirements.

[0088] S3.2.3.3 As construction progresses, the horizontal control network shall be re-measured according to the principle of importance in order to ensure that the control network is stable and reliable and to prevent the displacement of control points caused by ground deformation, settlement or other factors. The horizontal control network shall be re-measured according to the principle of importance to flexibly respond to various possible situations and ensure the continuous accuracy and stability of the construction process.

[0089] S3.2.3.4. The primary control network shall be equipped with redundant control points and the protection of each point shall be strengthened. If the control points of the lower-level control network are damaged, they shall be restored by the higher-level network. The starting point of the control network in the site shall be provided by the construction party. The plane control network of each layer shall be obtained by projecting the starting point in the site using a plumb line to form the primary control network for installation. The redundant control points and the strengthened protection measures shall ensure that even if some control points are damaged, the function of the control network can be quickly restored, thereby improving the reliability of construction.

[0090] The elevation control network is established based on the starting points issued by the construction party. These points must be verified before use and can only be used after passing inspection. To ensure the stability of the elevation system, the points should be located in places unaffected by the construction environment and not easily damaged. Considering temperature changes and the deformation of the building itself, the elevation control network should be periodically remeasured.

[0091] To meet the measurement accuracy requirements of the project and ensure the horizontal and vertical installation accuracy of the curtain wall, advanced measuring instruments and equipment were employed to ensure the accuracy of measurement and positioning and the overall architectural effect of the curtain wall project. During the installation process, high-precision automatic guiding total stations, precision levels, and plumb bobs were primarily used in the control network establishment and layout stages, along with necessary specialized measuring equipment. The TC1201 automatic guiding total station is a high-precision total station with a distance measurement accuracy of ±1.0~1.5mm over short distances. It has functions such as data processing, construction layout, and data transmission, ensuring both construction accuracy and efficiency. The DZJ3 plumb bob has an accuracy of 1 / 45000. The design of each level of the control network required closure checks and adjustments between control points, and also between different levels of the control network, to ensure that all points are located within the same system.

[0092] The starting point of the control network within the site area is provided by the construction party. The plane control network of each layer is obtained by projecting the starting point within the site area using a plumb line, thus forming the primary control network for installation. After the projection is completed, the projection points of each layer must be re-measured, and all points should be used only after verification and adjustment calculations.

[0093] Taking into account temperature changes and the deformation of the building itself, the elevation control network is periodically remeasured; the elevation control network is observed using a precision level instrument and is carried out in accordance with regulations.

[0094] Preferably, control points are selected on stable ground, and observation piers or permanent markers are constructed; the area near the control point should have a wide field of view to facilitate long-term observation and construction operations.

[0095] Preferably, the coordinate values ​​of the curtain wall keel installation components are given based on the three-dimensional installation model;

[0096] Extract the upper and lower control points as the positioning points for the curtain wall keel;

[0097] Each positioning point's coordinates include three coordinate values: A (horizontal position), B (horizontal position), and H (elevation), to facilitate accurate positioning;

[0098] Before installation, based on the site coordinates and curtain wall installation drawings, a total station was used to project installation positioning points on the structural beams to facilitate actual installation.

[0099] When installing each keel, refer to the positioning point projected to ensure accurate positioning;

[0100] After the keel is installed, a total station is used to verify the installation results to ensure installation accuracy, reduce safety hazards caused by improper installation, and ensure the safety of construction personnel and buildings.

[0101] Reflective stickers are affixed to the positioning points of the keel to facilitate subsequent measurement and verification, thereby improving the traceability of the installation and the convenience of maintenance.

[0102] When installing curtain wall components, coordinate verification is performed using the building's control network to ensure the accurate positioning of each component.

[0103] After verification, the next component will be installed. During the curtain wall installation process, the site control points need to be checked regularly. If any deviation is found, the general contractor and the supervision unit should be notified, and corrective measures should be formulated and implemented in a timely manner.

[0104] The control points are measured using multiple measuring devices or instruments, including two high-precision Leica TS30 instruments with a 0.5-second accuracy and a distance measurement accuracy of 0.6 mm, which provides a strong guarantee for the accuracy of the surveying and setting out. The automatic guiding total station TC1201 is a high-precision total station (nominal accuracy is shown in the configuration table), with a distance measurement accuracy of ±1.0~1.5 mm over short distances. It has functions such as data processing, construction setting out, and data transmission, which can ensure the accuracy and efficiency of construction.

[0105] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for constructing large-pane glass, wherein the length or width of the large-pane glass is not less than 2000 mm, characterized in that, The method includes: S1. Set the keel control points and establish a coordinate control network based on the control points; S2. The entire curtain wall system is simulated using computer-aided spatial modeling, and a three-dimensional installation model with specific coordinates is generated. S3. Install the keel according to the control points; S4. Hoist large glass panels onto the keel; The coordinate control network includes: an external control network and an internal control network; The external control network and the internal control network respectively perform an initial verification of the same control point to ensure that the error of the control point is within the allowable range; After the control points of the same curtain wall component are measured, a second verification is performed according to the drawings to ensure that the control points are in a closed state. Step S2 includes: S2.1, designing a keel model diagram with labeled coordinates and testing the keel model diagram; S2.2, based on the keel model diagram, obtaining the precise coordinates of each control point; S2.3, using a computer to simulate whether there is interference between the control points and the structure and finishing units; Step S3 includes: S3.1, using a high-precision automatic guide total station, precision level, plumb line, and camera to conduct measurements to ensure the accuracy of the measurement and positioning, as well as the overall architectural effect of the curtain wall project; S3.2 During the measurement process, auxiliary measuring point conversion devices, forced centering devices, and stakeout fixtures are used to ensure observation accuracy; Based on the three-dimensional installation model, the coordinate values ​​of the curtain wall keel installation components are given; the two control points above and below are extracted as the positioning points of the curtain wall keel; the coordinate values ​​of each positioning point include three coordinate values: horizontal position, horizontal direction, and elevation; before installation, according to the site coordinates and curtain wall installation drawings, the positioning points are projected onto the structural beam using a total station. During the installation of each keel, the positioning points are referenced in the projection; after installation, a total station is used for verification; after the keel is installed, reflective stickers are affixed to the positioning points; during the installation of curtain wall components, the coordinates are verified using the control network within the building; after verification, the next component is installed.

2. The construction method for large-pane glass according to claim 1, characterized in that, Step S4 includes the following steps: S4.1 Before the roof structure construction is completed, the suspended platform shall be erected on the top floor; S4.

2. Large glass panels of the exterior curtain wall are hoisted using a suspended platform. S4.3 After the roof structure is completed and the keel and large glass panels are installed, move the suspended platform to the roof. S4.4 The glass in the inner courtyard is vertically transported using a gun carriage for installation of large glass panels; The hoisting process includes: workers using a suspended platform to fix the equipment and apply adhesive.

3. The construction method for large-pane glass according to claim 1, characterized in that, The control points include: plane control points that control the horizontal position and orientation of the building, and elevation control points that control the vertical position of the building or structure.

4. The construction method for large-pane glass according to claim 1, characterized in that, Step S3.2 includes the following measurement steps: S3.2.1 Select a control point and a starting direction within the field area as the starting basis for planar control; S3.2.2 Select a unique elevation control point as the starting point for elevation control; S3.2.

3. Based on the plane control points and the engineering layout plan, establish the plane control network for the corresponding floors; and based on the elevation control points, establish the elevation control network for the corresponding floors.

5. The construction method for large-pane glass according to claim 4, characterized in that, Step S3.2.3 includes the following steps: S3.2.3.1 The plane control network and the elevation control network are controlled according to their respective levels, with higher-level networks controlling lower-level networks, and networks of the same level interconnected to form a system; S3.2.3.

2. Before each use, the control network shall be verified; S3.2.3.3 As construction progresses, the aforementioned plane control network shall be re-measured according to the principle of importance; S3.2.3.4 The primary control network shall be equipped with redundant control points and the protection of each point shall be strengthened; if the control points of the lower control network are damaged, they shall be restored by the higher control network.

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