Space dummy baseline special-shaped section bridge steel tower line type control method and system

Abstract

The invention relates to a space dummy baseline special-shaped section bridge steel tower line type control method and system, and the method comprises the steps: taking a dummy baseline as a reference, carrying out the overall modeling and segmentation of a steel tower, and obtaining tower shell segments; a first coordinate system is established for each tower shell section, a first coordinate point is obtained, and the line type of each tower shell section in the manufacturing stage is controlled through the first coordinate point; and a second coordinate system is established for the whole steel tower, a second coordinate point is obtained, and the line type and the space attitude of each tower shell section in the installation process are controlled through the second coordinate point. According to the space dummy baseline special-shaped section bridge steel tower linear control method and system, linear control over a twisted steel tower can be achieved through a dummy baseline and a steel tower characteristic section, actual investment is not needed, implementation is convenient and easy, the construction risk is reduced, and the construction efficiency is improved.

Description

Background Art

[0002] At present, the design of steel towers for bridges in my country can be divided into three types: vertical and horizontal ground type, inclined type and twisted type. The cross-sectional design is mostly regular polygons. These designs are mostly used on large rivers across rivers and seas. Once a bridge is built in a city, it will become a landmark building of the city, so high requirements are placed on the novelty and ornamental nature of the urban bridge design. Therefore, inclined and twisted steel towers with special-shaped cross-sections are born. With the improvement of the technical level of the equipment manufacturing industry, they will be widely used in the construction of urban bridges. However, for inclined and twisted steel towers, the design only provides the characteristic cross-sectional structure of the steel tower and an inoperable virtual baseline.

[0003] In the prior art, measuring tools are usually used to control the linearity of bridge steel towers, such as using a theodolite in conjunction with a steel ruler for measurement. However, the linearity control method using measuring tools cannot achieve linearity measurement during the manufacturing and installation of steel towers through the two basic parameters of the characteristic cross-sectional structure of the steel tower and the virtual baseline, and only uses the virtual baseline for auxiliary control.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] The purpose of the embodiments of the present disclosure is to provide a method and system for controlling the linear shape of a steel tower of a bridge with a spatial virtual baseline and a special-section, thereby overcoming one or more problems caused by the limitations and defects of the relevant technology at least to a certain extent.

[0007] In a first aspect, the present application provides a method for controlling the linear shape of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section, comprising:

[0008] Based on the virtual baseline, the steel tower is modeled as a whole and segmented to obtain the tower shell segments;

[0009] Establishing a first coordinate system for each of the tower shell segments, obtaining a first coordinate point, and controlling the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment;

[0010] A second coordinate system is established for the entire steel tower, and a second coordinate point is obtained. The line type and spatial posture of each tower shell segment during installation are controlled through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

[0011] In a possible implementation, the method of modeling the special-shaped cross-section steel tower as a whole and segmenting it based on the virtual baseline to obtain the tower shell segments includes:

[0012] Based on the virtual baseline, the steel tower is modeled as a whole to obtain the actual bridge line shape of the steel tower under the actual bridge state;

[0013] According to the actual bridge line shape of the steel tower, the steel tower model is transversely segmented to obtain the tower shell segments.

[0014] In a possible implementation, a first coordinate system is established for each of the tower shell segments, and the line type of each of the tower shell segments in the manufacturing stage is controlled through a first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment, including:

[0015] Establishing a first coordinate system with the intersection of the virtual baseline and each of the tower shell segment sections as a first reference point;

[0016] Modeling each tower shell segment, calculating the coordinate point of the corner end point of the steel tower outer wall plate of each tower shell segment as the first coordinate point;

[0017] According to the first coordinate point, the line shape of each tower shell segment in the manufacturing stage is controlled.

[0018] In a possible implementation manner, a second coordinate system is established for the entire steel tower, a second coordinate point is obtained, and the line type and spatial posture of each tower shell segment during installation are controlled through the second coordinate point, and the second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall plate, including:

[0019] Establishing a second coordinate system with the intersection of the virtual baseline and the tower shell port section as a second reference point;

[0020] Establishing an overall model of the steel tower to obtain the coordinates of the corner lines of the outer wall panels of the steel tower as a whole;

[0021] According to the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower outer wall plate, a second coordinate point is obtained; the second coordinate point is the coordinate of the intersection of the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower wall plate outer skin;

[0022] The linear shape and spatial posture of each tower shell segment during installation are controlled through the second coordinate point.

[0023] In a possible implementation manner, the first reference point is the center point of the segmented cross section of the tower shell segment.

[0024] In a possible implementation manner, the second reference point is the center point of the cross-section of the tower shell port of the steel tower as a whole.

[0025] In a possible implementation, the X-axis direction of the first coordinate system is the horizontal axis direction of the tower shell segment section, the Y-axis direction is the vertical axis direction of the tower shell segment section, and the Z-axis direction is the height direction of the tower shell segment.

[0026] In a possible implementation, the X-axis direction of the second coordinate system is the horizontal axis direction of the tower shell port section of the steel tower as a whole, the Y-axis direction is the vertical axis direction of the tower shell port section of the steel tower as a whole, and the Z-axis direction is the height direction of the steel tower as a whole.

[0027] In a second aspect, the present application provides a linear control system for a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section, including: an overall modeling and segmenting module, which is used to model and segment the steel tower as a whole based on the virtual baseline to obtain tower shell segments;

[0028] A segment line type control module is used to establish a first coordinate system for each of the tower shell segments, obtain a first coordinate point, and control the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment;

[0029] The overall linear control module is used to establish a second coordinate system for the steel tower as a whole, obtain a second coordinate point, and control the linear shape and spatial posture of each tower shell segment during the installation process through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

[0030] In a possible implementation, the overall modeling segmentation module includes: an overall modeling unit, which is used to perform overall modeling of the steel tower based on the virtual baseline to obtain the real bridge line shape of the steel tower in the real bridge state; a segment segmentation unit, which is used to perform transverse segmentation on the steel tower model according to the real bridge line shape of the steel tower to obtain the tower shell segment;

[0031] The segment line type control module includes: a first coordinate system establishment unit, used to establish a first coordinate system with the intersection of the virtual baseline and each tower shell segment segment cross section as a first reference point; a first coordinate point calculation unit, used to model each tower shell segment, calculate the coordinate point of the corner end point of the steel tower outer wall plate of each tower shell segment as the first coordinate point; a segment line type control unit, which controls the line type of each tower shell segment in the manufacturing stage according to the first coordinate point;

[0032] The overall line type control module includes: a second coordinate system establishment unit, which is used to establish a second coordinate system with the intersection of the virtual baseline and the tower shell port section as the second reference point; a corner line coordinate acquisition unit, which is used to establish the overall model of the steel tower and obtain the coordinates of the corner line of the steel tower outer wall panel of the steel tower as a whole; a second coordinate point calculation unit, which is used to obtain the second coordinate point according to the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower outer wall panel, and the second coordinate point is the intersection coordinate of the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower wall panel outer skin; a tower shell segment installation unit, which is used to control the line type and spatial posture of each tower shell segment during the installation process through the second coordinate point.

[0033] The technical solution provided by this application may have the following beneficial effects:

[0034] The present application uses the above method and system to perform three modeling of the special-section steel tower based on the virtual baseline. The posture of the real bridge steel tower is determined through the first modeling, and it is divided into blocks horizontally according to this posture; the linear control coordinates of the manufacturing stage are analyzed through the second modeling, which are used as the basis for controlling the linear shape of the single tower shell processing stage; the linear control coordinates of the installation stage are analyzed through the third modeling, which are used as the basis for controlling the linear shape of the single tower shell installation stage, thereby realizing the linear control of the twisted steel tower only through the virtual baseline and the characteristic cross-section of the steel tower, and has the characteristics of not requiring actual investment and being easy to implement, reducing construction risks and improving construction efficiency.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0037] Figure 1 A flow chart showing a method for controlling the line shape of a steel tower of a bridge with a special-shaped cross-section using a spatial virtual baseline in an exemplary embodiment of the present disclosure;

[0038] Figure 2 A detailed flow chart showing a method for controlling the line shape of a steel tower of a bridge with a special-shaped cross-section using a spatial virtual baseline in an exemplary embodiment of the present disclosure is shown;

[0039] Figure 3 A structural diagram showing a linear control system of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section in an exemplary embodiment of the present disclosure;

[0040] Figure 4 A detailed structural diagram of a linear control system for a steel tower of a bridge with a special-shaped cross-section and a spatial virtual baseline in an exemplary embodiment of the present disclosure is shown;

[0041] Figure 5 The overall model and segmented schematic diagram of a steel bridge showing the linear control method of a steel tower of a bridge with a special-shaped cross-section using a spatial virtual baseline in an exemplary embodiment of the present disclosure;

[0042] Figure 6 A schematic diagram showing a tower shell segment and a first coordinate point of a method for controlling the linear shape of a steel tower for a bridge with a special-shaped cross-section using a spatial virtual baseline in an exemplary embodiment of the present disclosure;

[0043] Figure 7 A schematic diagram of the entire steel tower and the second coordinate point of the linear control method of a steel tower for a bridge with a special-shaped cross-section and a spatial virtual baseline in an exemplary embodiment of the present disclosure is shown.

[0044] Reference numerals:

[0045] 100, overall modeling segmentation module, 110, overall modeling unit, 120, segment segmentation unit;

[0046] 200, segment line type control module, 210, first coordinate system establishment unit, 220, first coordinate point calculation unit, 230, segment line type control unit;

[0047] 300, overall line type control module, 310, second coordinate system establishment unit, 320, corner line coordinate acquisition unit, 330, second coordinate point calculation unit, 340, tower shell segment installation unit;

[0048] 400, virtual baseline; 500, overall real bridge line shape of the steel tower; 600, segmented section; 700, tower shell segment; 800, overall model of the steel tower. DETAILED DESCRIPTION

[0049] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0050] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0051] In this example implementation, a method for controlling the linear shape of a steel tower of a bridge with a spatial virtual baseline and a special cross-section is first provided. The method can be applied to a terminal device, such as a mobile phone, desktop computer, personal digital assistant, laptop computer, tablet computer, smart watch or other mobile terminal.

[0052] refer to Figure 1 As shown in , the method may include the following steps:

[0053] Step S100: Based on the virtual baseline, the steel tower is modeled as a whole and segmented to obtain tower shell segments;

[0054] Step S200: establishing a first coordinate system for each of the tower shell segments, obtaining a first coordinate point, and controlling the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment;

[0055] Step S300: Establish a second coordinate system for the entire steel tower, obtain a second coordinate point, and control the line type and spatial posture of each tower shell segment during installation through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

[0056] Through the above method, on the one hand, the posture of the real bridge steel tower is determined through the first modeling, and the tower is divided horizontally according to the posture; the linear control coordinates of the manufacturing stage are analyzed through the second modeling, which are used as the control basis of the linear shape of the single tower shell processing stage; the linear control coordinates of the installation stage are analyzed through the third modeling, which are used as the control basis of the linear shape of the single tower shell installation stage, thereby realizing the linear control of the twisted steel tower only through the virtual baseline and the characteristic section of the steel tower; on the other hand, the technical solution of the present application also has the characteristics of no actual investment and easy implementation, thereby reducing construction risks and improving construction efficiency.

[0057] Next, we will refer to Figure 1 to Figure 2 Each step of the above method in this example implementation is described in more detail.

[0058] In step S100, the steel tower is modeled as a whole and segmented based on the virtual baseline to obtain tower shell segments.

[0059] For example, the shape of the steel tower is an inclined octagonal pyramid. According to the design drawings, an overall model of the steel tower is established with a virtual baseline 400 as a reference to obtain an overall solid bridge line shape 500 of the steel tower. According to actual production conditions, the entire steel tower is segmented to form a number of tower shell segments 700 and segment cross sections 600.

[0060] In one embodiment, step S100 may include the following sub-steps:

[0061] Step S110: Based on the virtual baseline, the steel tower is modeled as a whole to obtain the actual bridge line shape of the steel tower in the actual bridge state.

[0062] Step S120: According to the actual bridge line shape of the steel tower, the steel tower model is transversely segmented to obtain the tower shell segments.

[0063] For example, Figure 5 As shown, according to the inclined octagonal pyramid-shaped steel tower overall solid bridge line shape 500 of the steel tower as a whole, the steel tower as a whole is segmented through transverse sections to form a plurality of inclined octagonal pyramid-shaped tower shell segments 700 .

[0064] In step S200, a first coordinate system is established for each tower shell segment, a first coordinate point is obtained, and the line type of each tower shell segment in the manufacturing stage is controlled by the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall panel of each tower shell segment.

[0065] It should be noted that the accurate line type of each tower shell segment can be determined through the coordinates of the corner endpoints of the steel tower outer wall panels of each tower shell segment.

[0066] In one embodiment, step S200 may include the following sub-steps:

[0067] Step S210: establishing a first coordinate system with the intersection of the virtual baseline and each of the tower shell segment sections as a first reference point.

[0068] Step S220: Model each tower shell segment, and calculate the coordinate point of the corner endpoint of the steel tower outer wall panel of each tower shell segment as the first coordinate point.

[0069] Step S230: Controlling the line type of each tower shell segment manufacturing stage according to the first coordinate point.

[0070] For example, Figure 6As shown, a coordinate system is established with the intersection of the virtual baseline 400 and the tower shell segment section 600 as the reference point (0, 0, 0), each tower shell segment 700 is modeled, and the coordinate points (X, Y, Z) of the corner endpoints of the steel tower outer wall panels of each tower shell segment 700 are analyzed and calculated. The manufacturing process controls the eight coordinate points (X1, Y1, Z1)∽(X8, Y8, Z8) of the corner endpoints of the steel tower outer wall panels of each tower shell segment 700, thereby controlling the line type of the tower shell segment 700.

[0071] Optionally, the first reference point is the center point of the tower shell segment section, the X-axis direction of the first coordinate system is the horizontal axis direction of the tower shell segment section, the Y-axis direction is the vertical axis direction of the tower shell segment section, and the Z-axis direction is the height direction of the tower shell segment.

[0072] In step S300, a second coordinate system is established for the entire steel tower, a second coordinate point is obtained, and the line type and spatial posture of each tower shell segment during installation are controlled through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

[0073] In one embodiment, step S300 may include the following sub-steps:

[0074] Step S310: establishing a second coordinate system with the intersection of the virtual baseline and the cross section of the tower shell port as a second reference point.

[0075] Step S320: Establish an overall model of the steel tower to obtain the coordinates of the corner lines of the outer wall panels of the entire steel tower.

[0076] Step S330: Obtain a second coordinate point according to the coordinates of each of the tower shell segment section and the coordinates of the corner line of the steel tower outer wall panel; the second coordinate point is the coordinate of the intersection of the coordinates of each of the tower shell segment section and the coordinates of the corner line of the steel tower wall panel outer skin.

[0077] Step S340: controlling the line shape and spatial posture of each tower shell segment during installation through the second coordinate point.

[0078] For example, Figure 7 As shown, a coordinate system is established with the intersection of the virtual baseline and the starting section of the lower port of the tower shell as the reference (0, 0, 0), and a steel tower overall model 800 is established and the coordinates of the intersection of the coordinates of each tower shell segment section 600 and the coordinates of the corner line of the steel tower wall panel outer skin are calculated. By controlling the eight intersection coordinates (X i1 , Y i1 , Z i1 )∽(Xi8 , Y i8 , Z i8 ) can ensure the installation line and spatial posture of the tower shell.

[0079] Optionally, the second reference point is the center point of the tower shell port section of the steel tower as a whole, the X-axis direction of the second coordinate system is the horizontal axis direction of the tower shell port section of the steel tower as a whole, the Y-axis direction is the vertical axis direction of the tower shell port section of the steel tower as a whole, and the Z-axis direction is the height direction of the steel tower as a whole.

[0080] Furthermore, in this exemplary embodiment, a spatial virtual baseline special-shaped cross-section bridge steel tower linear control system is also provided. Figure 3-4 As shown in , the system may include an overall modeling and segmentation module 100, a segment line type control module 200, and an overall line type control module 300. Among them, the overall modeling and segmentation module 100 is used to model and segment the steel tower as a whole based on the virtual baseline to obtain the tower shell segment; the segment line type control module 200 is used to establish a first coordinate system for each of the tower shell segments, obtain a first coordinate point, and control the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, and the first coordinate point is the coordinate of the corner end point of the steel tower outer wall plate of each tower shell segment; the overall line type control module 300 is used to establish a second coordinate system for the steel tower as a whole, obtain a second coordinate point, and control the line type and spatial posture of each of the tower shell segments during the installation process through the second coordinate point, and the second coordinate point is the coordinate of the intersection of each of the tower shell segment segment section and the corner line of the steel tower outer wall plate.

[0081] Further, optionally, in one embodiment, in combination Figure 4 As shown, the overall modeling segmentation module 100 includes: an overall modeling unit 110, which is used to perform overall modeling of the steel tower based on the virtual baseline to obtain the real bridge line shape of the steel tower in the real bridge state; a segment segmentation unit 120, which is used to perform transverse segmentation on the steel tower model according to the real bridge line shape of the steel tower to obtain the tower shell segment;

[0082] The segment line type control module 200 includes: a first coordinate system establishment unit 210, which is used to establish a first coordinate system with the intersection of the virtual baseline and each segmented cross section of the tower shell segment as a first reference point; a first coordinate point calculation unit 220, which is used to model each tower shell segment and calculate the coordinate point of the corner end point of the steel tower outer wall plate of each tower shell segment as the first coordinate point; a segment line type control unit 230, which controls the line type of each tower shell segment in the manufacturing stage according to the first coordinate point;

[0083] The overall line type control module 300 includes: a second coordinate system establishment unit 310, which is used to establish a second coordinate system with the intersection of the virtual baseline and the tower shell port section as the second reference point; a corner line coordinate acquisition unit 320, which is used to establish the overall model of the steel tower and obtain the coordinates of the corner line of the steel tower outer wall panel of the steel tower as a whole; a second coordinate point calculation unit 330, which is used to obtain the second coordinate point according to the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower outer wall panel, and the second coordinate point is the intersection coordinate of the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower wall panel outer skin; a tower shell segment installation unit 340, which is used to control the line type and spatial posture of each tower shell segment during the installation process through the second coordinate point.

[0084] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0085] It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiment of the present disclosure, the features and functions of two or more modules or units described above can be concretized in one module or unit. Conversely, the features and functions of a module or unit described above can be further divided into multiple modules or units for concretization. The components displayed as modules or units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the undisclosed scheme. Those of ordinary skill in the art can understand and implement it without paying creative work.

[0086] In an exemplary embodiment of the present disclosure, an electronic device is also provided, which may include a processor and a memory for storing executable instructions of the processor. The processor is configured to execute the steps of the line shape control method of the steel tower of a bridge with a special-shaped cross-section with a spatial virtual baseline in any of the above embodiments by executing the executable instructions.

[0087] It will be appreciated by those skilled in the art that various aspects of the present invention may be implemented as a system, method or program product. Therefore, various aspects of the present invention may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as a "circuit", "module" or "system".

[0088] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including a number of instructions to enable a computing device (which can be a personal computer, a server, or a network device, etc.) to execute the above-mentioned spatial virtual baseline special-section bridge steel tower line control method according to the implementation of the present disclosure.

[0089] In an exemplary embodiment of the present disclosure, a computer storage medium is also provided, on which a computer program is stored. When the program is executed by, for example, a processor, it can implement the steps of the linear control method of the spatial virtual baseline special-section bridge steel tower described in any of the above embodiments.

[0090] In some possible embodiments, various aspects of the present invention can also be implemented in the form of a computer program product, which includes a computer program or instructions. When the computer program product is run on a terminal device, the computer program code or instructions are used to enable the terminal device to execute the steps of various exemplary embodiments of the present invention described in the above-mentioned spatial virtual baseline special-section bridge steel tower linear control method section of this specification.

[0091] The program product described above may be written in any combination of one or more programming languages ​​to perform program code for the operation of the present invention, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0092] The computer software product may be stored in a computer storage medium, which may include a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0093] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A method for controlling the linear shape of a steel tower of a bridge with a special-shaped cross-section using a spatial virtual baseline, characterized in that: include: Based on the virtual baseline, the steel tower is modeled as a whole and segmented to obtain the tower shell segments; Establishing a first coordinate system for each of the tower shell segments, obtaining a first coordinate point, and controlling the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment; A second coordinate system is established for the entire steel tower, and a second coordinate point is obtained. The line type and spatial posture of each tower shell segment during installation are controlled through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

2. According to the method for controlling the line shape of a steel tower of a bridge with a special-shaped cross-section using a spatial virtual baseline as described in claim 1, it is characterized in that: The above-mentioned method uses the virtual baseline as a reference to model the entire steel tower with a special-shaped cross-section and divide it into sections to obtain the tower shell sections, including: Based on the virtual baseline, the steel tower is modeled as a whole to obtain the real bridge line shape of the steel tower in the real bridge state; According to the actual bridge line shape of the steel tower, the steel tower model is transversely segmented to obtain the tower shell segments.

3. According to the method for controlling the line shape of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section as described in claim 1, it is characterized in that: The first coordinate system is established for each tower shell segment, and the line type of each tower shell segment in the manufacturing stage is controlled through the first coordinate point, and the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment, including: Establishing a first coordinate system with the intersection of the virtual baseline and each of the tower shell segment sections as a first reference point; Modeling each tower shell segment, calculating the coordinate point of the corner end point of the steel tower outer wall plate of each tower shell segment as the first coordinate point; According to the first coordinate point, the line shape of each tower shell segment in the manufacturing stage is controlled.

4. According to the method for controlling the linear shape of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section as described in claim 1, it is characterized in that: The second coordinate system is established for the entire steel tower, and the second coordinate point is obtained. The line type and spatial posture of each tower shell segment during the installation process are controlled by the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall plate, including: Establishing a second coordinate system with the intersection of the virtual baseline and the tower shell port section as a second reference point; Establishing an overall model of the steel tower to obtain the coordinates of the corner lines of the outer wall panels of the steel tower as a whole; According to the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower outer wall plate, a second coordinate point is obtained; the second coordinate point is the coordinate of the intersection of the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower wall plate outer skin; The linear shape and spatial posture of each tower shell segment during installation are controlled through the second coordinate point.

5. According to the method for controlling the line shape of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section as described in claim 3, it is characterized in that: The first reference point is the center point of the segmented cross section of the tower shell segment.

6. According to the method for controlling the line shape of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section as described in claim 4, it is characterized in that: The second reference point is the center point of the tower shell port section of the steel tower as a whole.

7. The linear control method of a steel tower of a bridge with a special-shaped cross section with a spatial virtual baseline according to claim 5 is characterized in that: The X-axis direction of the first coordinate system is the horizontal axis direction of the tower shell segment section, the Y-axis direction is the vertical axis direction of the tower shell segment section, and the Z-axis direction is the height direction of the tower shell segment.

8. The linear control method of a steel tower of a bridge with a special-shaped cross section with a spatial virtual baseline according to claim 6 is characterized in that: The X-axis direction of the second coordinate system is the horizontal axis direction of the tower shell port section of the steel tower as a whole, the Y-axis direction is the vertical axis direction of the tower shell port section of the steel tower as a whole, and the Z-axis direction is the height direction of the steel tower as a whole.

9. A spatial virtual baseline special-section bridge steel tower linear control system, characterized in that: The system is used for the linear control method of a steel tower of a bridge with a spatial virtual baseline and a special-shaped cross-section as claimed in any one of claims 1 to 8, and the system comprises: The overall modeling and segmentation module is used to model and segment the steel tower as a whole based on the virtual baseline to obtain the tower shell segments; A segment line type control module is used to establish a first coordinate system for each of the tower shell segments, obtain a first coordinate point, and control the line type of each of the tower shell segments in the manufacturing stage through the first coordinate point, wherein the first coordinate point is the coordinate of the corner endpoint of the steel tower outer wall plate of each tower shell segment; The overall linear control module is used to establish a second coordinate system for the steel tower as a whole, obtain a second coordinate point, and control the linear shape and spatial posture of each tower shell segment during the installation process through the second coordinate point. The second coordinate point is the coordinate of the intersection of each tower shell segment section and the corner line of the steel tower outer wall panel.

10. The linear control system of the space virtual baseline special-shaped cross-section bridge steel tower according to claim 9, characterized in that: The overall modeling and segmentation module includes: an overall modeling unit, which is used to perform overall modeling of the steel tower based on the virtual baseline to obtain the real bridge line shape of the steel tower in the real bridge state; a segment segmentation unit, which is used to perform transverse segmentation on the steel tower model according to the real bridge line shape of the steel tower to obtain the tower shell segment; The segment line type control module includes: a first coordinate system establishment unit, used to establish a first coordinate system with the intersection of the virtual baseline and each tower shell segment segment cross section as a first reference point; a first coordinate point calculation unit, used to model each tower shell segment, calculate the coordinate point of the corner end point of the steel tower outer wall plate of each tower shell segment as the first coordinate point; a segment line type control unit, which controls the line type of each tower shell segment in the manufacturing stage according to the first coordinate point; The overall line type control module includes: a second coordinate system establishment unit, which is used to establish a second coordinate system with the intersection of the virtual baseline and the tower shell port section as the second reference point; a corner line coordinate acquisition unit, which is used to establish the overall model of the steel tower and obtain the coordinates of the corner line of the steel tower outer wall panel of the steel tower as a whole; a second coordinate point calculation unit, which is used to obtain the second coordinate point according to the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower outer wall panel, and the second coordinate point is the intersection coordinate of the coordinates of each tower shell segment section and the coordinates of the corner line of the steel tower wall panel outer skin; a tower shell segment installation unit, which is used to control the line type and spatial posture of each tower shell segment during the installation process through the second coordinate point.

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