Steel truss girder manufacturing line shape deviation calculation method, device, equipment and storage medium

Abstract

A steel truss beam manufacturing line shape deviation calculation method, device, equipment and storage medium. The steel truss beam manufacturing line shape deviation calculation method comprises: measuring the steel truss beam segment after manufacturing to obtain the chord length manufacturing error of each steel truss beam; deleting the bridge load and structural unit irrelevant to the calculation of the steel truss beam manufacturing line shape deviation in the bridge model to obtain a processed bridge model; applying the chord length manufacturing error of the steel truss beam to the chord unit of the corresponding splice joint of the processed bridge model; and calculating the steel truss beam manufacturing line shape deviation based on the processed bridge model to which the chord length manufacturing error is applied. The application can calculate the steel truss beam manufacturing line shape deviation based on the processed bridge model to which the chord length manufacturing error is applied; and the bridge model is processed, the bridge load and part of the irrelevant unit are deleted, the calculation speed of the steel truss beam manufacturing line shape deviation can be improved, and the manufacturing line shape deviation can be calculated quickly and conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering, and in particular to a steel truss girder manufacturing line deviation calculation method, device, equipment and storage medium. BACKGROUND

[0002] At present, in long-span railway bridges, steel truss girders are the most common form of main girders, which are connected by individual steel truss girder segments, and the segments are spliced using splicing plates and high-strength bolts. Steel truss girder segments are generally manufactured in a factory and then transported to the construction site for segment assembly. Due to manufacturing errors, the unstressed configuration of the steel truss girder segment will inevitably differ from the designed configuration, which leads to a deviation between the line shape (actual manufacturing line shape) of the steel truss girder after splicing and the designed manufacturing line shape.

[0003] In related technologies, in order to actively control the manufacturing line shape of the steel truss girder, improve the bridge line shape accuracy after completion, and improve the safety and comfort of train travel, the manufacturing line deviation of the steel truss girder must be calculated in advance. To calculate the manufacturing line deviation of the steel truss girder, the manufacturing errors of the steel truss girder must be applied to the finite element model. The existing method is to load all the manufacturing errors of the steel truss girder, but the workload is huge and the operation is extremely inconvenient.

[0004] Therefore, it is necessary to design a new steel truss girder manufacturing line deviation calculation method to overcome the above problems. SUMMARY

[0005] The present application provides a steel truss girder manufacturing line deviation calculation method, device, equipment and storage medium, which can solve the technical problems of huge workload and extremely inconvenient operation in related technologies.

[0006] In a first aspect, the present application provides a steel truss girder manufacturing line deviation calculation method, which comprises:

[0007] Measuring the manufactured steel truss girder segments to obtain the chord length manufacturing error of each steel truss girder;

[0008] Deleting the bridge completion load and structural unit irrelevant to calculating the steel truss girder manufacturing line deviation in the bridge completion model to obtain a processed completion model;

[0009] Applying the chord length manufacturing error of the steel truss girder to the chord element of the corresponding splicing interface of the processed completion model;

[0010] Based on the processed completion model with the chord length manufacturing error applied, the steel truss girder manufacturing line deviation is calculated.

[0011] In combination with the first aspect, in an implementation, the deleting the bridge once-bridge model irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder includes:

[0012] The dead load, the secondary dead load, the pressure weight, and the shrinkage and creep in the bridge once-bridge model are deleted.

[0013] In combination with the first aspect, in an implementation, the deleting the bridge once-bridge model irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder includes:

[0014] The cable structural unit in the bridge once-bridge model is deleted, including deleting the cable unit of the cable-stayed bridge, deleting the suspender and main cable unit of the suspension bridge, and deleting the arch ring and suspender unit of the arch bridge.

[0015] In combination with the first aspect, in an implementation, the deleting the bridge once-bridge model irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder includes:

[0016] The bridge deck and the longitudinal beam unit at every two steel truss girder segment joints in the bridge once-bridge model are deleted, and the upper chord and the lower chord unit are retained.

[0017] In combination with the first aspect, in an implementation, the applying the chord length manufacturing error of the steel truss girder to the chord unit at the corresponding joint of the processed bridge once-bridge model includes:

[0018] The chord length manufacturing error of the steel truss girder is applied to the chord unit at the corresponding joint of the processed bridge once-bridge model by using the manufacturing deviation load or the temperature load.

[0019] In combination with the first aspect, in an implementation, the calculating the manufacturing linear deviation of the steel truss girder based on the processed bridge once-bridge model to which the chord length manufacturing error is applied includes:

[0020] The center point of the bridge deck on the processed bridge once-bridge model to which the chord length manufacturing error is applied is selected as a linear control node of the steel truss girder, and then finite element operation analysis is performed, and after the calculation is completed, the coordinate displacement of each control node in the longitudinal direction, the transverse direction, and the vertical direction of the bridge is extracted, which is the manufacturing linear deviation of the steel truss girder.

[0021] In combination with the first aspect, in an implementation, the chord length manufacturing error of the steel truss girder includes the length deviation of the upstream side upper chord, the upstream side lower chord, the downstream side upper chord, and the downstream side lower chord.

[0022] Secondly, the embodiments of the present application provide a steel truss girder manufacturing linear deviation calculation device, which includes:

[0023] The measurement module is used to measure the manufactured steel truss segments to obtain the manufacturing error of the chord length of each steel truss.

[0024] The processing module is used to delete bridge loads and structural elements in the bridge model that are irrelevant to the calculation of the steel truss manufacturing alignment deviation, and obtain the processed bridge model.

[0025] The manufacturing error loading module is used to apply the manufacturing error of the chord length of the steel truss to the chord unit of the corresponding splicing interface of the processed completed bridge model;

[0026] The calculation module is used to calculate the manufacturing alignment deviation of the steel truss girder based on the completed bridge model after the chord length manufacturing error has been applied.

[0027] Thirdly, this application provides a steel truss manufacturing line deviation calculation device, which includes a processor, a memory, and a steel truss manufacturing line deviation calculation program stored in the memory and executable by the processor. When the steel truss manufacturing line deviation calculation program is executed by the processor, it implements the steps of the above-described steel truss manufacturing line deviation calculation method.

[0028] Fourthly, embodiments of this application provide a computer-readable storage medium storing a steel truss manufacturing line deviation calculation program, wherein when the steel truss manufacturing line deviation calculation program is executed by a processor, the steps of the above-described steel truss manufacturing line deviation calculation method are implemented.

[0029] The beneficial effects of the technical solutions provided in this application include:

[0030] By measuring the manufactured steel truss segments, the manufacturing error of the chord length of each steel truss can be obtained. Then, the manufacturing error of the chord length of the steel truss is applied to the chord element of the corresponding splice interface in the processed completed bridge model. Based on the processed completed bridge model with the applied chord length manufacturing error, the manufacturing alignment deviation of the steel truss can be calculated. Furthermore, by processing the bridge model in its first phase and deleting the completed bridge load and some irrelevant elements, the calculation speed of the manufacturing alignment deviation of the steel truss can be improved, solving the technical problems of huge workload and extreme inconvenience in operation in related technologies. Attached Figure Description

[0031] Figure 1 This is a flowchart illustrating an embodiment of the method for calculating the manufacturing line deviation of steel truss beams according to this application;

[0032] Figure 2 This is a structural diagram of a steel truss girder segment according to an embodiment of this application;

[0033] Figure 3 Manufacturing error measurement result of chord length of steel truss beam section of the present application;

[0034] Figure 4 Manufacturing error loading effect diagram of the present application;

[0035] Figure 5 Calculation result of manufacturing line deviation of steel truss beam of the present application;

[0036] Figure 6 Hardware structure schematic diagram of manufacturing line deviation calculation device of steel truss beam involved in the embodiment scheme of the present application. DETAILED DESCRIPTION

[0037] In order to enable personnel in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0038] In the related art, in order to realize active regulation and control of the manufacturing line of the steel truss beam, improve the line precision of the completed bridge, and improve the safety and comfort of train passing, the manufacturing line deviation of the steel truss beam must be calculated in advance. To calculate the manufacturing line deviation of the steel truss beam, the manufacturing error of the steel truss beam must be applied to the finite element model. If all the manufacturing errors of the steel truss beam are loaded according to the current method, the workload is huge and the operation is extremely inconvenient. The applicant found that actually, only the manufacturing length error of the chord has a greater impact on the calculation of the manufacturing line of the steel truss beam, and it is unnecessary to load all the errors. Therefore, the present application proposes a steel truss beam manufacturing line deviation calculation method to solve the problem of large workload and low operability in the related art.

[0039] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be described in further detail below in conjunction with the drawings.

[0040] In a first aspect, the embodiments of the present application provide a steel truss beam manufacturing line deviation calculation method.

[0041] In an embodiment, with reference to Figure 1 , Figure 1 The flowchart of the first embodiment of the steel truss beam manufacturing line deviation calculation method of the present application is shown in FIG. 1. As shown in FIG. 1, the steel truss beam manufacturing line deviation calculation method comprises: Figure 1

[0042] ​S1: Measure the chord length manufacturing error of each steel truss after the steel truss segment is completed.

[0043] S2: Delete the bridge load and structural unit irrelevant to the calculation of the manufacturing linear deviation of the steel truss in the once-bridge model of the bridge to obtain a processed once-bridge model.

[0044] S3: Apply the chord length manufacturing error of the steel truss to the chord unit of the corresponding splicing interface of the processed once-bridge model.

[0045] S4: Calculate the manufacturing linear deviation of the steel truss based on the processed once-bridge model to which the chord length manufacturing error is applied.

[0046] In this embodiment, the chord length manufacturing error of each steel truss obtained in step S1 is denoted as: .In the formula, . In the formula, is the steel truss segment number, , is the number of steel truss segments, respectively represent the length deviation of the upper chord on the upstream side, the lower chord on the upstream side, the upper chord on the downstream side, and the lower chord on the downstream side. Taking the total number of steel truss segments as 86 as an example, . The chord length manufacturing deviation measurement results of each steel truss segment are shown in Table 1. Figure 3

[0047] It should be understood that in step S2, the bridge load and structural unit irrelevant to the calculation of the manufacturing linear deviation of the steel truss, that is, the bridge load and structural unit that has little or no effect on the calculation of the manufacturing linear deviation of the steel truss, has no effect on the calculation of the manufacturing linear deviation of the steel truss, so it is unnecessary to load.

[0048] The embodiment can obtain the chord length manufacturing error of each steel truss by measuring the steel truss segment after the manufacturing is completed, then apply the chord length manufacturing error of the steel truss to the chord unit of the corresponding splicing interface of the processed once-bridge model, and calculate the manufacturing linear deviation of the steel truss based on the processed once-bridge model to which the chord length manufacturing error is applied. The once-bridge model of the bridge is processed, and the bridge load and part of the irrelevant unit are deleted, which can improve the calculation speed of the manufacturing linear deviation of the steel truss and solve the technical problems of huge workload and extremely inconvenient operation in the related art. The steel truss manufacturing linear deviation calculation method provided by the embodiment can quickly and conveniently calculate the linear deviation caused by the manufacturing error of the steel truss, so as to facilitate the engineers to make measures in advance to actively control the manufacturing linear deviation, which is beneficial to improve the linear control precision of the bridge.

[0049] Further, in an embodiment, the deleting the bridge construction load and structural element irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder in the bridge construction model can include deleting the dead load, the secondary dead load, the pressure load, and the shrinkage and creep in the bridge construction model. This embodiment finds that these construction loads have no effect on the calculation of the manufacturing linear deviation of the steel truss girder, and deleting these construction loads improves the calculation speed of the manufacturing linear deviation of the steel truss girder.

[0050] Further, in an embodiment, the deleting the bridge construction load and structural element irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder in the bridge construction model can include deleting the cable structural element in the bridge construction model, including deleting the cable element of the cable-stayed bridge, deleting the suspender and main cable element of the suspension bridge, and deleting the arch ring and suspender element of the arch bridge. In this embodiment, the cable structural element in the bridge construction model is deleted, which can avoid the action of the external prestress load on the steel truss girder and improve the calculation accuracy of the manufacturing linear deviation of the steel truss girder.

[0051] On the basis of the above technical solution, in an embodiment, the deleting the bridge construction load and structural element irrelevant to the calculation of the manufacturing linear deviation of the steel truss girder in the bridge construction model can include deleting the bridge deck and longitudinal beam element at the joint of every two steel truss girder segments in the bridge construction model, and retaining the upper chord and lower chord elements. This embodiment removes the bridge deck and longitudinal beam element at the joint of the segments, retains the upper and lower chord elements, facilitates the subsequent application of the manufacturing deviation load of the steel truss girder segment, and greatly simplifies the loading of the manufacturing error of the chord of the steel truss girder.

[0052] Further, in some optional embodiments, the applying the chord length manufacturing error of the steel truss girder to the chord element at the corresponding joint of the processed bridge construction model can include applying the chord length manufacturing error of the steel truss girder to the chord element at the corresponding joint of the processed bridge construction model in the form of a manufacturing deviation load or a temperature load. In this embodiment, preferably, the chord length manufacturing error of the steel truss girder can be applied to the chord element at the corresponding joint of the processed bridge construction model in the form of a manufacturing deviation load, and the loading effect is shown in FIG. 8. Figure 4

[0053] ​Further, in one embodiment, calculating the steel truss girder manufacturing alignment deviation based on the bridge model after applying manufacturing errors to the chord length can include: selecting the center point of the bridge deck on the bridge model after applying manufacturing errors to the chord length as the steel truss girder alignment control node, then performing finite element analysis, and extracting the coordinate displacements of each control node in the longitudinal, transverse, and vertical directions of the bridge after the calculation, which is the steel truss girder manufacturing alignment deviation. In this embodiment, when calculating the steel truss girder manufacturing alignment deviation, the center point of the bridge deck on the bridge model is selected as the steel truss girder alignment control node, followed by finite element analysis, and the coordinate displacements of each control node in the longitudinal, transverse, and vertical directions of the bridge after the calculation are extracted, denoted as... , Number the control nodes. Written in matrix form, this represents the deviation in the manufacturing alignment of the steel truss girder, denoted as .

[0054] .

[0055] In the formula, The number of nodes controlling the alignment of the steel truss girder. These represent the coordinates of the control node in the longitudinal, lateral, and vertical directions of the bridge, respectively.

[0056] In the above embodiments, the finite element analysis mainly includes the following two steps:

[0057] 1. Nonlinear analysis is adopted to improve the accuracy of finite element analysis.

[0058] 2. Click the Run Analysis button to perform finite element analysis calculations.

[0059] The following is a detailed description using a specific example.

[0060] See Figure 2 As shown in the figure, the bridge consists of a total of 86 steel truss segments; 1 is the downstream upper chord of a single segment, 2 is the downstream lower chord of a single segment, 3 is the upstream upper chord of a single segment, and 4 is the upstream lower chord of a single segment.

[0061] The specific steps for calculating the manufacturing line deviation of steel truss girders are as follows:

[0062] Step S1: Measure the manufactured steel truss segments to obtain the manufacturing error of the chord length for each steel truss segment, denoted as . In the formula, Numbering of steel truss girder segments ( ), respectively represent the length deviation of the upper chord on the upstream side, the lower chord on the upstream side, the upper chord on the downstream side and the lower chord on the downstream side. The chord length manufacturing deviation measurement results of each steel truss segment are shown in the attached Figure 3

[0063] Step S2: process the bridge once-bridge model, the specific operation is as follows: ① delete the bridge load in the once-bridge finite element model, including self weight, secondary dead load, pressure weight, shrinkage and creep, etc. ② delete the cable structure unit in the model, including the cable, suspender and main cable unit. ③ delete the bridge deck and longitudinal beam unit at the joint of every two steel truss segments in the model, and keep the upper and lower chord units, which is convenient for subsequent application of steel truss segment manufacturing deviation load.

[0064] Step S3: select the manufacturing deviation load mode, and apply the steel truss chord length manufacturing error to the chord unit at the corresponding joint of the model, and the loading effect is shown in the attached Figure 4 .

[0065] Step S4: calculate the steel truss manufacturing linear deviation. Select the bridge deck center point on the model as the steel truss linear control node, and the number of control points is 140. Then perform finite element operation analysis, and after calculation, extract the coordinate displacement of each control node in the longitudinal, transverse and vertical directions of the bridge, denoted as , is the control node number, . Write as a matrix, that is, the steel truss manufacturing linear deviation, denoted as . .

[0066] Draw into a curve form, as shown in the attached Figure 5 .

[0067] The steel truss manufacturing linear deviation calculation method provided by the application includes: measuring the steel truss segment after manufacturing to obtain the chord length manufacturing error of each steel truss; processing the bridge once-bridge model; applying the chord length manufacturing error of the steel truss to the chord unit at the corresponding joint of the model; and calculating the steel truss manufacturing linear deviation. The method can quickly and conveniently calculate the linear deviation caused by the manufacturing error of the steel truss, so as to facilitate the engineers to make measures in advance to actively control the manufacturing linear, which is beneficial to improve the linear control precision of the bridge.

[0068] In the second aspect, the embodiments of the application also provide a steel truss manufacturing linear deviation calculation device.

[0069] ​In an embodiment, the steel truss manufacturing line deviation calculation device comprises: a measuring module configured to measure the manufactured steel truss segments to obtain chord length manufacturing errors of each steel truss; a processing module configured to delete bridge construction loads and structural units irrelevant to the calculation of the steel truss manufacturing line deviation from the primary bridge construction model of the bridge to obtain a processed bridge construction model; a manufacturing error loading module configured to apply the chord length manufacturing errors of the steel truss to the chord units of the corresponding splicing interfaces of the processed bridge construction model; and a calculation module configured to calculate the steel truss manufacturing line deviation based on the processed bridge construction model to which the chord length manufacturing errors are applied.

[0070] Further, in an embodiment, the processing module is configured to delete the self weight, the secondary dead load, the pressure weight, and the shrinkage and creep from the primary bridge construction model of the bridge.

[0071] Further, in an embodiment, the processing module is further configured to delete the cable structural units, including the stay cable, the suspender, and the main cable units, from the primary bridge construction model of the bridge.

[0072] Further, in an embodiment, the processing module is further configured to delete the deck and the longitudinal beam units at the splicing joints of each two steel truss segments from the primary bridge construction model of the bridge, and to retain the upper chord units and the lower chord units.

[0073] Further, in an embodiment, the manufacturing error loading module is configured to apply the chord length manufacturing errors of the steel truss to the chord units of the corresponding splicing interfaces of the processed bridge construction model in the form of manufacturing deviation loads or temperature loads.

[0074] Further, in an embodiment, the calculation module is configured to select the bridge deck center points on the processed bridge construction model to which the chord length manufacturing errors are applied as the line control nodes of the steel truss, to then perform finite element operation analysis, to extract the coordinate displacements of each control node in the longitudinal, transverse, and vertical directions of the bridge after the calculation, and to obtain the steel truss manufacturing line deviation.

[0075] Further, in an embodiment, the chord length manufacturing errors of the steel truss include the length deviations of the upstream side upper chord, the upstream side lower chord, the downstream side upper chord, and the downstream side lower chord.

[0076] The functions of each module of the steel truss manufacturing line deviation calculation device correspond to the steps of the steel truss manufacturing line deviation calculation method, and the functions and implementation processes will not be repeated here.

[0077] In a third aspect, the embodiments of the present application provide a steel truss girder manufacturing line shape deviation calculation device. The steel truss girder manufacturing line shape deviation calculation device can be a personal computer (PC), a notebook computer, a server, or the like having a data processing function.

[0078] Referring to Figure 6 , Figure 6 FIG. 1 is a schematic diagram of a hardware structure of a steel truss girder manufacturing line shape deviation calculation device according to an embodiment of the present application. In the embodiments of the present application, the steel truss girder manufacturing line shape deviation calculation device can include a processor, a memory, a communication interface, and a communication bus.

[0079] The communication bus can be of any type and used to interconnect the processor, the memory, and the communication interface.

[0080] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, and the like, which are used to interconnect devices inside the steel truss girder manufacturing line shape deviation calculation device, and are used to interconnect the steel truss girder manufacturing line shape deviation calculation device with other devices (for example, other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber interface, an ATM interface, or the like; the user device can be a display (Display), a keyboard (Keyboard), or the like.

[0081] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), or the like.

[0082] The processor can be a general-purpose processor, which can invoke a steel truss girder manufacturing line shape deviation calculation program stored in the memory and execute the steel truss girder manufacturing line shape deviation calculation method provided by the embodiments of the present application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed by the steel truss girder manufacturing line shape deviation calculation program when invoked can refer to the various embodiments of the steel truss girder manufacturing line shape deviation calculation method of the present application, which will not be described here.

[0083] Those skilled in the art can understand that Figure 6The hardware structure shown in the figures is not a limitation on the present application, and can include more or fewer components, or combine certain components, or arrange different components.

[0084] In a fourth aspect, the embodiments of the present application further provide a readable storage medium.

[0085] The steel truss manufacturing linearity deviation calculation program is stored on the readable storage medium of the present application, and when the steel truss manufacturing linearity deviation calculation program is executed by a processor, the steps of the steel truss manufacturing linearity deviation calculation method are realized.

[0086] The method realized when the steel truss manufacturing linearity deviation calculation program is executed can refer to each embodiment of the steel truss manufacturing linearity deviation calculation method of the present application, which will not be described here.

[0087] It should be noted that the serial numbers of the above embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0088] The terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above-described figures are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device. The terms "first", "second" and "third" and the like descriptions are used to distinguish different objects, and do not represent the order or limit the types of "first", "second" and "third".

[0089] In the description of the embodiments of the present application, "exemplary", "for example" or "for instance" is used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary", "for example" or "for instance" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In fact, the words "exemplary", "for example" or "for instance" are intended to present the relevant concept in a specific way.

[0090] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text only describes the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0091] In some of the processes described in this specification, the order of operations or steps can be modified. Specifically, the serial order of any two consecutive steps carried out according to the processes described in this specification can be changed so that these two steps can be carried out in parallel or simultaneously, or the order of these two steps can be reversed.

[0092] Those skilled in the art can clearly understand the above-mentioned embodiment method from the description of the above embodiments, which can be realized by software and a necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disc) and includes a plurality of instructions for causing a terminal device to execute the methods described in the various embodiments of the present application.

[0093] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A steel truss girder manufacturing line shape deviation calculation method characterized by, The steel truss beam manufacturing line shape deviation calculation method comprises: After the steel truss beam segment is manufactured, the chord length manufacturing error of each steel truss beam is obtained by measurement; The self-weight, the secondary dead load, the pressure weight and the shrinkage and creep of the bridge primary bridge completion model are deleted; the cable structure unit of the bridge primary bridge completion model is deleted, including the cable element of the cable-stayed bridge, the suspender and main cable element of the suspension bridge and the arch ring and suspender element of the arch bridge; and the bridge deck and longitudinal beam unit at the joint of every two steel truss beam segments of the bridge primary bridge completion model are deleted, and the upper chord and lower chord units are reserved to obtain the processed bridge completion model; The chord length manufacturing error of the steel truss beam is applied to the chord unit of the joint of the processed bridge completion model; Based on the processed bridge completion model to which the chord length manufacturing error is applied, the steel truss beam manufacturing line shape deviation is calculated.

2. The steel truss girder manufacturing line shape deviation calculation method according to claim 1, wherein The chord length manufacturing error of the steel truss beam is applied to the chord unit of the joint of the processed bridge completion model by using the manufacturing deviation load or temperature load. Based on the processed bridge completion model to which the chord length manufacturing error is applied, the steel truss beam manufacturing line shape deviation is calculated.

3. The steel truss girder manufacturing line shape deviation calculation method according to claim 1, wherein The chord length manufacturing error of the steel truss beam is applied to the chord unit of the joint of the processed bridge completion model by using the manufacturing deviation load or temperature load. Based on the processed bridge completion model to which the chord length manufacturing error is applied, the steel truss beam manufacturing line shape deviation is calculated.

4. The steel truss beam manufacturing line shape deviation calculation method according to claim 1, wherein the chord length manufacturing error of the steel truss beam comprises the length deviation of the upstream side upper chord, the upstream side lower chord, the downstream side upper chord and the downstream side lower chord. The steel truss beam manufacturing line shape deviation calculation device comprises:

5. A steel truss girder manufacturing line shape deviation calculation device characterized by comprising: A measurement module is configured to measure the chord length manufacturing error of each steel truss beam after the steel truss beam segment is manufactured; A processing module is configured to delete the self-weight, the secondary dead load, the pressure weight and the shrinkage and creep of the bridge primary bridge completion model; delete the cable structure unit of the bridge primary bridge completion model, including the cable element of the cable-stayed bridge, the suspender and main cable element of the suspension bridge and the arch ring and suspender element of the arch bridge; and delete the bridge deck and longitudinal beam unit at the joint of every two steel truss beam segments of the bridge primary bridge completion model, and reserve the upper chord and lower chord units to obtain the processed bridge completion model; A manufacturing error loading module is configured to apply the chord length manufacturing error of the steel truss beam to the chord unit of the joint of the processed bridge completion model; A calculation module is configured to calculate the steel truss beam manufacturing line shape deviation based on the processed bridge completion model to which the chord length manufacturing error is applied. ​ 6. A steel truss girder manufacturing line shape deviation calculation device characterized by comprising: The steel truss beam manufacturing line linear deviation calculation device includes a processor, a memory, and a steel truss beam manufacturing line linear deviation calculation program stored on the memory and executable by the processor, wherein the steel truss beam manufacturing line linear deviation calculation program, when executed by the processor, implements the steps of the steel truss beam manufacturing line linear deviation calculation method according to any one of claims 1 to 4.

7. A computer readable storage medium characterized in that, The computer readable storage medium stores a steel truss beam manufacturing line linear deviation calculation program, wherein the steel truss beam manufacturing line linear deviation calculation program, when executed by the processor, implements the steps of the steel truss beam manufacturing line linear deviation calculation method according to any one of claims 1 to 4.

Images