A method for automatic layout of railway bridge schemes

Abstract

The present invention discloses a method for automatically arranging railway bridge plans. The present invention discloses the following steps: obtaining control point information of a target bridge, matching the control point information with various beam span plans in a preset beam library, using the matched beam span plan as the target beam span plan, covering various sections on the target bridge according to the target beam span plan, determining uncovered filling sections in each section based on the covering results, filling each filling section according to a preset filling strategy, and generating a target layout plan for the target bridge based on the covering and filling results. This plan matches various beam span plans in a preset beam library, determines sections to be covered and uncovered filling sections in each section of the target bridge based on the matching results, and covers and fills each section separately, thereby achieving effective planning of each section of the target bridge, thereby improving the accuracy of the bridge layout plan.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and in particular to a method for automatically arranging railway bridge schemes. Background Art

[0002] Currently, when constructing bridges, different obstacles, sizes, and shapes are found in different sections of the bridge, resulting in different layout strategies required for each section. However, it is currently impossible to effectively and meticulously plan the different sections of the bridge, resulting in inaccurate overall bridge layout plans.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of the present invention is to provide a method for automatic layout of railway bridge schemes, aiming to solve the technical problem that the existing technology cannot effectively carry out detailed planning for different bridge sections in the bridge, resulting in inaccurate overall layout scheme of the bridge.

[0005] To achieve the above-mentioned object, the present invention provides a method for automatically arranging a railway bridge scheme, the method comprising the following steps:

[0006] Get the control point information of the target bridge;

[0007] Matching the control point information with the beam span solutions in the preset beam library, and using the matched beam span solution as the target beam span solution;

[0008] Covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result;

[0009] Fill each filling section according to a preset filling strategy;

[0010] A target layout plan of the target bridge is generated according to the covering result and the filling result.

[0011] Optionally, matching the control point information with beam span solutions in a preset beam library and using the matched beam span solution as a target beam span solution includes:

[0012] Obtaining a safety factor of the target bridge;

[0013] Determining the required span of the target bridge according to the control point information and the safety factor;

[0014] Determine candidate spans in each beam span scheme in the preset beam library;

[0015] The required span is matched with each candidate span, and the beam span solution corresponding to the matched candidate span is used as the target beam span solution.

[0016] Optionally, matching the required span with each candidate span and using the beam span solution corresponding to the matched candidate span as the target beam span solution includes:

[0017] Determining the restriction condition corresponding to the target bridge according to the bridge information of the target bridge;

[0018] Determining the span hyperparameters of the target bridge according to the constraint conditions;

[0019] Setting a required span interval corresponding to the required span according to the span hyperparameter;

[0020] The candidate spans are matched based on the required span interval, and the beam span scheme corresponding to the matched candidate span is used as the target beam span scheme.

[0021] Optionally, covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result, includes:

[0022] Determining the beam span center according to the target beam span plan;

[0023] Determine the center of the control point influence area in each section according to the control point information;

[0024] Align the center of each beam span with the center of the influence area of ​​each control point, and determine the control section in each section based on the alignment result;

[0025] Each control section is covered according to the target beam span solution, and the uncovered filling section in each section is determined according to the covering result.

[0026] Optionally, filling each filling section according to a preset filling strategy includes:

[0027] Get the segment size of each filling segment;

[0028] Determine the simply supported beam corresponding to each filling section according to the section size and the preset filling strategy;

[0029] Each filling section is filled based on the simply supported beam.

[0030] Optionally, the simply supported beam includes: an initial simply supported beam and an adjusted simply supported beam; and determining the simply supported beam corresponding to each filling section according to the section size and a preset filling strategy includes:

[0031] Determine the initial simply supported beam corresponding to each filling section according to the section size and the preset filling strategy;

[0032] Obtain the number of beams of each initial simply supported beam and the beam size of each initial simply supported beam;

[0033] Determining the remaining size to be adjusted of each filling section according to the number of beams and the beam size;

[0034] The adjusted simply supported beam corresponding to each filling section is determined according to the size to be adjusted and the preset filling strategy.

[0035] Optionally, generating a target layout plan of the target bridge according to the covering result and the filling result includes:

[0036] generating an initial layout plan of the target bridge according to the covering result and the filling result;

[0037] Obtaining line curve information of the target bridge;

[0038] Analyzing the beam joints of the target bridge according to the line curve information and the initial layout plan;

[0039] adjusting the pier positions of the target bridge according to the analysis results;

[0040] Determine the position of each control point according to the control point information;

[0041] Performing collision detection based on the positional relationship between the position of each control point and the position of the bridge pier;

[0042] A target layout plan of the target bridge is generated according to the collision detection result and the initial layout plan.

[0043] In addition, to achieve the above-mentioned purpose, the present invention further proposes a railway bridge scheme automatic layout device, the railway bridge scheme automatic layout device comprising:

[0044] A control point acquisition module is used to obtain the control point information of the target bridge;

[0045] A control point matching module is used to match the control point information with each beam span solution in a preset beam library, and use the matched beam span solution as the target beam span solution;

[0046] a section covering module, configured to cover each section on the target bridge according to the target beam span solution, and determine uncovered filling sections in each section according to the covering result;

[0047] A section filling module is used to fill each filling section according to a preset filling strategy;

[0048] A scheme generating module is used to generate a target layout scheme of the target bridge according to the covering result and the filling result.

[0049] In addition, to achieve the above-mentioned purpose, the present invention also proposes a railway bridge scheme automatic layout device, which includes: a memory, a processor, and a railway bridge scheme automatic layout program stored in the memory and runnable on the processor, and the railway bridge scheme automatic layout program is configured to implement the steps of a railway bridge scheme automatic layout method as described above.

[0050] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a railway bridge scheme automatic layout program is stored. When the railway bridge scheme automatic layout program is executed by a processor, the steps of a railway bridge scheme automatic layout method as described above are implemented.

[0051] The present invention obtains control point information of a target bridge, matches the control point information with beam span schemes in a preset beam library, uses the matched beam span scheme as a target beam span scheme, covers each section on the target bridge according to the target beam span scheme, determines uncovered filling sections in each section according to the covering result, fills each filling section according to a preset filling strategy, and generates a target layout scheme of the target bridge according to the covering result and the filling result; because the present invention matches each beam span scheme in a preset beam library according to the control point information of each control point on the target bridge, thereby matching a target beam span scheme suitable for the target bridge, determines sections that need to be covered and uncovered filling sections in each section of the target bridge based on the matching result, covers and fills each section respectively, realizes effective planning of each section of the target bridge, generates a target layout scheme of the target bridge according to the covering result and the filling result, thereby improving the accuracy of the bridge layout scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a structural diagram of a railway bridge automatic layout device in a hardware operating environment involved in an embodiment of the present invention;

[0053] Figure 2 This is a flow chart of a first embodiment of a method for automatically arranging a railway bridge scheme according to the present invention;

[0054] Figure 3 This is a bridge arrangement flow chart of a first embodiment of a method for automatically arranging a railway bridge scheme according to the present invention;

[0055] Figure 4 This is a flow chart of a second embodiment of a method for automatically arranging a railway bridge scheme according to the present invention;

[0056] Figure 5This is a flow chart of a third embodiment of a method for automatically arranging a railway bridge scheme according to the present invention;

[0057] Figure 6 This is a structural block diagram of the first embodiment of the railway bridge scheme automatic layout device of the present invention.

[0058] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] Reference Figure 1 , Figure 1 This is a schematic diagram of the automatic equipment structure layout of the railway bridge solution in the hardware operating environment involved in the embodiment of the present invention.

[0061] like Figure 1 As shown, the railway bridge scheme automatic layout device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and optionally the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (NVM), such as a disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0062] Those skilled in the art will understand that Figure 1 The structure shown in does not constitute a limitation on the automatic layout equipment for railway bridge schemes, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0063] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a railway bridge scheme automatic layout program.

[0064] exist Figure 1 In the railway bridge scheme automatic layout device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the railway bridge scheme automatic layout device of the present invention can be set in the railway bridge scheme automatic layout device, and the railway bridge scheme automatic layout device calls the railway bridge scheme automatic layout program stored in the memory 1005 through the processor 1001, and executes a railway bridge scheme automatic layout method provided by an embodiment of the present invention.

[0065] The embodiment of the present invention provides a method for automatically arranging a railway bridge scheme, referring to Figure 2 , Figure 2 This is a flow chart of a first embodiment of a method for automatic layout of railway bridge schemes according to the present invention.

[0066] In this embodiment, the method for automatically arranging a railway bridge scheme includes the following steps:

[0067] Step S10: Acquire the control point information of the target bridge.

[0068] It should be understood that the executor of the method of this embodiment can be a railway bridge plan automatic layout device with data processing, network communication and program running functions, such as a computer, or other devices or equipment that can achieve the same or similar functions. The above-mentioned railway bridge plan automatic layout device (hereinafter referred to as bridge layout equipment) is used as an example for illustration.

[0069] It should be noted that control point information can be relevant information about each control point on the target bridge. For example, control point information may include: the control point name, type, center mileage, intersection angle, effective width, control point level, limit, ground elevation, etc. The above control points can be obstacles on the target bridge. Refer to Table 1 below, which is a table of control point attributes. For example, a control point can be a road, railway, waterway, river ditch, or pipeline; correspondingly, control point information can be road information, railway information, waterway information, river ditch information, or pipeline information.

[0070]

[0071] Table 1

[0072] Step S20: matching the control point information with the beam span solutions in the preset beam library, and using the matched beam span solution as the target beam span solution.

[0073] It should be noted that the preset beam library can be a pre-built database containing multiple beam span schemes, wherein the span of each beam span scheme can be different, so the bridge layout equipment can select a beam span scheme suitable for the target bridge according to the span of each beam span scheme; the above-mentioned target beam span scheme can be a beam span scheme with a span suitable for the target bridge, refer to the following Table 2, Table 2 is the preset beam library information table.

[0074]

[0075] Table 2

[0076] It should be understood that the bridge layout equipment determines the intersection angle between each control point and the target bridge, the effective width of the control point, the width and thickness of the pier corresponding to the proposed beam span based on the control point information to calculate the required span, matches the required span with the various beam span schemes in the preset beam library, determines the beam span scheme that matches the required span, and uses the matched beam span scheme as the target beam span scheme.

[0077] In the specific implementation, the bridge layout equipment calculates the required span based on the limit requirements, angle, center mileage and other information of the control points, and then selects a beam span scheme that meets the required span from the preset beam library, requiring that the span of the beam span scheme is not less than the required span.

[0078] It should be noted that in order to improve the rationality of the plan, the bridge layout equipment can select a beam span plan with the minimum span that meets the required span; further, the bridge layout equipment can select an economical and reasonable beam span plan according to the priority of simply supported beams, continuous beams, low-tower cable-stayed bridges, continuous beam arches, and complex and special bridges; further, the bridge layout equipment can select an economical, durable, and easy-to-maintain plan according to the priority of concrete structures, composite structures, and steel structures; further, the bridge layout equipment can make certain adjustments to the selection criteria based on the economy of the structure and the advancement of the plan according to different environments.

[0079] Step S30: covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result.

[0080] It should be noted that the filling section is the section on the target bridge that is not covered by the target beam span solution, so the section on the target bridge that is covered by the target beam span solution is the control section.

[0081] Furthermore, in order to effectively cover all sections of the target bridge that need to be covered, the above step S30 may include:

[0082] Determining the beam span center according to the target beam span plan;

[0083] Determine the center of the control point influence area in each section according to the control point information;

[0084] Align the center of each beam span with the center of the influence area of ​​each control point, and determine the control section in each section based on the alignment result;

[0085] Each control section is covered according to the target beam span solution, and the uncovered filling section in each section is determined according to the covering result.

[0086] It should be understood that the bridge layout equipment calculates the required span based on the intersection angle between the control point and the railway, the effective width of the control point, and the pier width and thickness corresponding to the proposed beam span. Based on the required span, a standard beam that meets the basic requirements is selected from the span field in the bridge standard library. The center of the selected bridge beam span is aligned with the center of the control point's influence area. The span covered by the beam is the control area, and the remaining section is the fill area.

[0087] Step S40: filling each filling section according to a preset filling strategy.

[0088] It should be understood that the bridge layout equipment selects initial simply supported beams to fill each filling section according to a preset filling strategy. After the initial simply supported beams are filled, the remaining unfilled sections are filled based on the preset filling strategy.

[0089] In the specific implementation, the bridge layout equipment selects any filling area, determines its section length, and uses the initial simply supported beam and the adjusted simply supported beam to fill it. For example, a 32m simply supported beam can be selected as the initial simply supported beam, and a 24m simply supported beam can be selected as the adjusted simply supported beam. The number of initial simply supported beam types and the remaining length to be adjusted are determined. The number of initial simply supported beam types is equal to the section length divided by the total length of the initial simply supported beam types and rounded up. The remaining filling section length is equal to the interval length divided by the total length of the initial simply supported beam types and rounded up.

[0090] Step S50: generating a target layout plan of the target bridge according to the covering result and the filling result.

[0091] It should be understood that the bridge layout equipment obtains the bridge information of the target bridge, determines the bridge-road boundary height of the target bridge based on the bridge information, and determines the initial bridge starting and ending mileage based on the bridge-road boundary height; for two adjacent bridges, it is necessary to judge the length of the middle roadbed, and merge adjacent bridges with a length less than the shortest roadbed into one bridge; the shortest roadbed length is generally determined based on the abutment and the minimum span standard simply supported beam. For example, the shortest roadbed length can be 30m.

[0092] In the specific implementation, refer to Figure 3 , Figure 3For the bridge layout flow chart, the bridge layout equipment obtains the line plan, sets the bridge-road boundary height, determines the bridge starting point and key mileage, and then determines the shortest roadbed requirements. It determines whether the shortest roadbed requirements are met. If not, it merges the adjacent bridge plans; if they are met, it obtains the control point information and determines whether the minimum distance requirements are met. If not, it merges the adjacent control points; if they are met, it obtains the standard beam library information, sets the matching priority rules, and matches the control point beam type through the matching algorithm. If the matching fails, the matching result information is uploaded to the user review platform for intervention review; if the matching is successful, the target beam span plan of the control section is determined, and the filling The starting point and end point of the section are set, and the filling rules of the filling section are set. The filling algorithm is used to fill the filling section with beam types. If the filling fails, the process returns to the above step of matching the control point beam types through the matching algorithm. If the filling is successful, the span plan of the entire bridge is determined, the curved beam joints are accurately calculated, the pier positions are fine-tuned and updated, and then a collision check is performed. Based on the check results, it is determined whether the collision requirements are met. If not, the process returns to the above step of filling the filling section with beam types through the filling algorithm, or returns to the above step of matching the control point beam types through the matching algorithm to re-match and fill until the collision requirements are met. If so, the final bridge plan is determined.

[0093] Furthermore, in order to improve the accuracy of the solution, the above step S50 may include:

[0094] generating an initial layout plan of the target bridge according to the covering result and the filling result;

[0095] Obtaining line curve information of the target bridge;

[0096] Analyzing the beam joints of the target bridge according to the line curve information and the initial layout plan;

[0097] adjusting the pier positions of the target bridge according to the analysis results;

[0098] Determine the position of each control point according to the control point information;

[0099] Performing collision detection based on the positional relationship between the position of each control point and the position of the bridge pier;

[0100] A target layout plan of the target bridge is generated according to the collision detection result and the initial layout plan.

[0101] In practice, the bridge layout equipment meticulously analyzes the effects of beam gaps, fine-tunes pier positions, and performs collision checks on the relationship between control points and piers. Finally, after fine-tuning the line elevation and pier positions, the final span layout is determined. Specifically, the equipment determines the corresponding beam gap width for each span based on the initial bridge plan and the curve location. After recalculating the pier mileage and accounting for the effects of beam gaps, a collision check is performed to ensure the target bridge passes the collision detection plan.

[0102] This embodiment obtains control point information of the target bridge, matches the control point information with the various beam span schemes in the preset beam library, takes the matched beam span scheme as the target beam span scheme, covers each section on the target bridge according to the target beam span scheme, determines the uncovered filling sections in each section according to the covering results, fills each filling section according to a preset filling strategy, and generates a target layout scheme of the target bridge according to the covering results and the filling results; since this embodiment matches each beam span scheme in the preset beam library according to the control point information of each control point on the target bridge, thereby matching a target beam span scheme suitable for the target bridge, determines the sections that need to be covered and the uncovered filling sections in each section of the target bridge based on the matching results, and covers and fills each section respectively, thereby achieving effective planning of each section of the target bridge, and generating the target layout scheme of the target bridge according to the covering results and the filling results, thereby improving the accuracy of the bridge layout scheme.

[0103] refer to Figure 4 , Figure 4 This is a flow chart of a second embodiment of a method for automatic layout of a railway bridge scheme according to the present invention.

[0104] Based on the above first embodiment, in this embodiment, step S20 includes:

[0105] Step S201: Obtain the safety factor of the target bridge;

[0106] Step S202: determining the required span of the target bridge according to the control point information and the safety factor;

[0107] Step S203: determining candidate spans in each beam span solution in the preset beam library;

[0108] Step S204: matching the required span with each candidate span, and taking the beam span solution corresponding to the matched candidate span as the target beam span solution.

[0109] It should be noted that the safety factor may be the safety margin factor of the control point of the target bridge. The required span may be the theoretical span required by the target bridge. The candidate span may be the bridge span in each beam span solution in the preset beam library.

[0110] It should be understood that the bridge layout equipment can comprehensively determine the required span of the bridge based on the limits of the control points, the angle with the line, the thickness and width of the piers, and the safety margin, determine the candidate spans in each beam span scheme in the preset beam library, match the required span with each candidate span one by one, and thus select the beam span scheme that matches the required span as the target beam span scheme.

[0111] In practice, bridge layout equipment determines the theoretical span of a bridge based on the limits of the control points, the angle with the line, the thickness and width of the piers, and the safety margin. For example, for a bridge spanning a navigable river, the required span is the span of the main navigation channel (L), the transverse width (B) of the navigation channel piers, the longitudinal length (A), and the effective width of the river or waterway (W0). When calculating the clear navigation width, the bridge span is deducted from the pier width and the width (S) reserved on each side for anti-collision facilities (flexible rubber) to obtain the clear distance (LA-2S). The calculation of the orthogonal clear navigation width after vertical projection is based on the following formula 1. Formula 1 is the formula for calculating the orthogonal clear navigation width. Since the orthogonal clear navigation width W ≥ the channel width W0, the following formula 2 is used as the simplified formula for the required span.

[0112] W=(LA-2S)×cosα°-B×sinα° Formula 1

[0113]

[0114] Furthermore, in order to effectively reduce the cost of the bridge while ensuring the stability of the bridge, the above step S204 may include:

[0115] Step S2041: determining the restriction condition corresponding to the target bridge according to the bridge information of the target bridge;

[0116] Step S2042: determining the span hyperparameters of the target bridge according to the constraint conditions;

[0117] Step S2043: setting a required span interval corresponding to the required span according to the span hyperparameter;

[0118] Step S2044: matching each candidate span based on the required span interval, and taking the beam span solution corresponding to the matched candidate span as the target beam span solution.

[0119] It should be noted that the restriction condition may be a height limit and span requirement of the target bridge. The bridge information may be relevant information of the target bridge, for example, the bridge information may include bridge size, bridge starting point, bridge center, and bridge-road boundary height.

[0120] It should be understood that the bridge layout equipment selects a standard beam that meets the basic requirements from the span domain of the bridge standard beam library according to the required span L. The span domain refers to the required span L to the increased span section [L+ΔL], where ΔL is a system hyperparameter. For example, the range of 10m to 20m is often selected. The basic requirements refer to meeting the span requirements and height limit requirements. In specific implementation, the span requirements can be met first, and then the height limit requirements can be checked. The span requirements, for multi-span structures such as continuous beams, refer to the mid-span. The above-mentioned height limit requirements may include the elevation of the line, the height of the track structure, the height of the beam in the affected range, the height space after the ground elevation, and the height after the surplus height to meet the limit height.

[0121] This embodiment obtains the safety factor of the target bridge, determines the required span of the target bridge according to the control point information and the safety factor, determines the candidate spans in each beam span scheme in the preset beam library, matches the required span with each candidate span, and uses the beam span scheme corresponding to the matched candidate span as the target beam span scheme; since this embodiment determines the required span of the target bridge according to the control point information and the safety factor, determines the candidate spans in each beam span scheme in the preset beam library, matches the required span with each candidate span, and uses the beam span scheme corresponding to the matched candidate span as the target beam span scheme, it ensures that the matched target beam span scheme is consistent with the target bridge, and effectively avoids the problem of low bridge layout efficiency due to scheme non-compliance.

[0122] refer to Figure 5 , Figure 5 This is a flow chart of a third embodiment of a method for automatic layout of a railway bridge scheme according to the present invention.

[0123] Based on the first embodiment above, in this embodiment, step S40 includes:

[0124] Step S401: Obtain the segment size of each filling segment.

[0125] Step S402: determining the simply supported beam corresponding to each filling section according to the section size and a preset filling strategy.

[0126] Step S403: filling each filling section based on the simply supported beam.

[0127] It should be noted that the infill section may be a section of the target bridge that is not covered by the target beam span solution. The aforementioned section size may be the section length of each infill section. The aforementioned preset infill strategy may be a standard simply supported beam infill strategy pre-set by the bridge layout equipment.

[0128] In specific implementation, the bridge layout equipment can determine the commonly used standard spans according to the preset filling strategy, and select the standard simply supported beam type scheme for filling according to the standard span (for example, the commonly used standard spans are 24m, 32m and 40m spans, etc.). The standard beams fill the remaining sections, and the length of the remaining sections can be shortened to within 4m by placing standard simply supported beams that can be adjusted and replaced, and finally closed by translation.

[0129] Regarding the selection of standard simply supported beam spans, 32m standard simply supported beams are generally selected as the primary beam type, with 24m standard simply supported beams used as adjustable span beams. For example, when the bridge is located in water areas, soft soil areas, or mountainous areas with high piers, where foundation engineering costs are high, a larger span, such as a 40m standard simply supported beam, is preferred, with a 32m beam used as the adjustable span option.

[0130] The above-mentioned standard simply supported beam span replacement scheme can be to select the closest moving distance modulus according to the remaining section length after the standard beam is filled, for example, ±8m, ±16m, ±24m, ±32m. The specific standard simply supported beam span replacement scheme is shown in Table 3 below. Table 3 is the standard simply supported beam span replacement scheme (taking 32m as the main selected beam type and 24m as the adjustable span beam type as an example).

[0131]

[0132] Table 3

[0133] Furthermore, in order to improve the accuracy of segment filling, the simply supported beam includes: an initial simply supported beam and an adjusted simply supported beam; the above step S402 may include:

[0134] Step S4021: determining an initial simply supported beam corresponding to each filling segment according to the segment size and a preset filling strategy;

[0135] Step S4022: Obtain the number of initial simply supported beams and the beam size of each initial simply supported beam;

[0136] Step S4023: determining the remaining size to be adjusted of each filling section according to the number of beams and the beam size;

[0137] Step S4024: determining the adjusted simply supported beam corresponding to each filling section according to the size to be adjusted and the preset filling strategy.

[0138] It should be understood that the bridge layout equipment obtains the section size of each filling section, determines its section length according to the section size, and uses the initial simply supported beam and the adjusted simply supported beam for filling. For example, a 32m simply supported beam can be selected as the initial simply supported beam, and a 24m simply supported beam can be selected as the adjusted simply supported beam. The number of initial simply supported beam types and the remaining length to be adjusted are determined. The number of initial simply supported beam types is equal to the section length divided by the total length of the initial simply supported beam types and rounded up. The remaining filling section length is equal to the interval length divided by the total length of the initial simply supported beam types and the remainder.

[0139] In the specific implementation, the bridge layout equipment determines the beam span replacement plan based on the remaining filling area length. When the filling section length is greater than or equal to 60m, the standard simply supported beam span replacement plan table can be consulted to determine the replacement plan: when the remaining filling area length is 4m≤ΔL s When the length of the filling area is less than 12m, the length of the 2-32m simply supported beam is increased by 8m by replacing the 3-24m simply supported beam; when the length of the remaining filling area is 12m≤ΔL s When the length of the filling area is less than 20m, the length of the 1-32m simply supported beam is increased by 16m by replacing the 2-24m simply supported beam; when the length of the remaining filling area is 20m≤ΔL s When the length of the remaining filling area is less than 28m, the length can be increased by 24m by adding a 1-24m simply supported beam; when the length of the remaining filling area is less than 28m, the length can be increased by 24m. s When the height is ≤32m, add a 1-32m simply supported beam.

[0140] The bridge layout equipment then passes through the translation control area and connects with the filling area to close and eliminate the length within ±4m. When the remaining filling area length 0m≤ΔL s ≤4m (or -4m≤ΔL s ≤0m), the control area and the infill area are closed and connected by translating the center positions of the bridge spans at adjacent control points. Specific adjustment methods include single-point adjustment and two-point adjustment. The single-point fine-tuning method directly eliminates the remaining length by translating the entire span at the front (or rear) control point toward the larger (or smaller) mileage. The two-point fine-tuning method involves translating half of the remaining length of the entire span at the front control point toward the larger mileage, and the other half of the remaining length of the entire span at the rear control point toward the smaller mileage.

[0141] Bridge layout equipment in special circumstances filling section processing solution, when the filling section length -4m ≤ ΔL s ≤60m, the specific adjustment rules are as follows: When the interval length is 52m≤ΔL s When the interval length is ≤60m, it is necessary to add a 1-24m simply supported beam + a 1-32m simply supported beam; when the interval length is 44m≤ΔL s When the interval length is ≤52m, it is necessary to add a 2-24m simply supported beam; when the interval length is 36m≤ΔL s When the interval length is ≤44m, it is necessary to add a 1-40m simply supported beam; when the interval length is 28m≤ΔL sWhen the interval length is ≤36m, add a 1-32m simply supported beam; when the interval length is 20m≤ΔL s When the interval length is ≤28m, it is necessary to add a 1-24m simply supported beam; when the interval length is 4m≤ΔL s When the length is ≤20m, choose the frame bridge solution, then translate the control area and connect it with the filling area to close the length within ±4m.

[0142] This embodiment obtains the section size of each filling section, determines the simply supported beam corresponding to each filling section according to the section size and the preset filling strategy, and fills each filling section based on the simply supported beam; since this embodiment selects a simply supported beam suitable for each filling section according to the section size of each filling section and the preset filling strategy, and fills each filling section based on the simply supported beam, it ensures that each filling area not covered by the target beam span scheme can be effectively filled, effectively avoiding the problem of unarranged sections on the target bridge, thereby improving the efficiency of arranging each filling section on the target bridge.

[0143] In addition, an embodiment of the present invention also proposes a storage medium, on which a railway bridge scheme automatic layout program is stored. When the railway bridge scheme automatic layout program is executed by a processor, the steps of a railway bridge scheme automatic layout method as described above are implemented.

[0144] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0145] Reference Figure 6 , Figure 6 This is a structural block diagram of the first embodiment of the railway bridge scheme automatic layout device of the present invention.

[0146] like Figure 6 As shown, the railway bridge scheme automatic layout device proposed in the embodiment of the present invention includes:

[0147] A control point acquisition module 10 is used to obtain control point information of a target bridge;

[0148] A control point matching module 20 is used to match the control point information with each beam span solution in a preset beam library, and use the matched beam span solution as the target beam span solution;

[0149] a section covering module 30 for covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result;

[0150] The section filling module 40 is used to fill each filling section according to a preset filling strategy;

[0151] The solution generating module 50 is used to generate a target layout solution of the target bridge according to the covering result and the filling result.

[0152] Furthermore, the control point matching module 20 is also used to obtain the safety factor of the target bridge; determine the required span of the target bridge based on the control point information and the safety factor; determine the candidate spans in each beam span scheme in the preset beam library; match the required span with each candidate span, and use the beam span scheme corresponding to the matched candidate span as the target beam span scheme.

[0153] Furthermore, the control point matching module 20 is also used to determine the restriction conditions corresponding to the target bridge based on the bridge information of the target bridge; determine the span hyperparameters of the target bridge based on the restriction conditions; set the required span interval corresponding to the required span based on the span hyperparameters; match each candidate span based on the required span interval, and use the beam span scheme corresponding to the matched candidate span as the target beam span scheme.

[0154] Furthermore, the section covering module 30 is also used to determine the center of the beam span according to the target beam span plan; determine the center of the control point influence area in each section according to the control point information; align the center of each beam span with the center of the influence area of ​​each control point, and determine the control section in each section based on the alignment result; cover each control section according to the target beam span plan, and determine the uncovered filling section in each section according to the covering result.

[0155] Furthermore, the section filling module 40 is also used to obtain the section size of each filling section; determine the simply supported beam corresponding to each filling section according to the section size and a preset filling strategy; and fill each filling section based on the simply supported beam.

[0156] Furthermore, the section filling module 40 is also used to determine the initial simply supported beams corresponding to each filling section based on the section size and the preset filling strategy; obtain the number of beams of each initial simply supported beam and the beam size of each initial simply supported beam; determine the remaining size to be adjusted of each filling section based on the number of beams and the beam size; determine the adjusted simply supported beams corresponding to each filling section based on the size to be adjusted and the preset filling strategy.

[0157] Furthermore, the solution generation module 50 is also used to generate an initial layout solution of the target bridge based on the covering result and the filling result; obtain the line curve information of the target bridge; analyze the beam joints of the target bridge based on the line curve information and the initial layout solution; adjust the pier position of the target bridge based on the analysis result; determine the position of each control point based on the control point information; perform collision detection based on the positional relationship between the position of each control point and the position of the pier; and generate a target layout solution of the target bridge based on the collision detection result and the initial layout solution.

[0158] This embodiment obtains control point information of the target bridge, matches the control point information with the various beam span schemes in the preset beam library, takes the matched beam span scheme as the target beam span scheme, covers each section on the target bridge according to the target beam span scheme, determines the uncovered filling sections in each section according to the covering results, fills each filling section according to a preset filling strategy, and generates a target layout scheme of the target bridge according to the covering results and the filling results; since this embodiment matches each beam span scheme in the preset beam library according to the control point information of each control point on the target bridge, thereby matching a target beam span scheme suitable for the target bridge, determines the sections that need to be covered and the uncovered filling sections in each section of the target bridge based on the matching results, and covers and fills each section respectively, thereby achieving effective planning of each section of the target bridge, and generating the target layout scheme of the target bridge according to the covering results and the filling results, thereby improving the accuracy of the bridge layout scheme.

[0159] It should be understood that the above is only an example and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any limitation on this.

[0160] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of it according to actual needs to achieve the purpose of the embodiment scheme, and no limitation is made here.

[0161] In addition, for technical details not fully described in this embodiment, please refer to the automatic layout method of railway bridge scheme provided in any embodiment of the present invention, and will not be repeated here.

[0162] In addition, it should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0163] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0164] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, or of course by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0165] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for automatic layout of railway bridge schemes, characterized in that: The method for automatically arranging a railway bridge scheme includes: Get the control point information of the target bridge; Obtaining a safety factor of the target bridge; Determining the required span of the target bridge according to the control point information and the safety factor; Determine candidate spans in each beam span scheme in the preset beam library; Matching the required span with each candidate span, and using the beam span solution corresponding to the matched candidate span as the target beam span solution; Covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result; Get the segment size of each filling segment; Determine the simply supported beam corresponding to each filling section according to the section size and the preset filling strategy; Filling each filling section based on the simply supported beam; generating a target layout plan of the target bridge according to the covering result and the filling result; The simply supported beam includes: an initial simply supported beam and an adjusted simply supported beam; the simply supported beam corresponding to each filling section is determined according to the section size and the preset filling strategy, including: Determine the initial simply supported beam corresponding to each filling section according to the section size and the preset filling strategy; Obtain the number of beams of each initial simply supported beam and the beam size of each initial simply supported beam; Determining the remaining size to be adjusted of each filling section according to the number of beams and the beam size; The adjusted simply supported beam corresponding to each filling section is determined according to the size to be adjusted and the preset filling strategy.

2. The method for automatically arranging a railway bridge scheme according to claim 1, characterized in that: The step of matching the required span with each candidate span and using the beam span solution corresponding to the matched candidate span as the target beam span solution includes: Determining the restriction condition corresponding to the target bridge according to the bridge information of the target bridge; Determining the span hyperparameters of the target bridge according to the constraint conditions; Setting a required span interval corresponding to the required span according to the span hyperparameter; The candidate spans are matched based on the required span interval, and the beam span scheme corresponding to the matched candidate span is used as the target beam span scheme.

3. The method for automatically arranging a railway bridge scheme according to claim 1, characterized in that: Covering each section on the target bridge according to the target beam span solution, and determining uncovered filling sections in each section according to the covering result, includes: Determining the beam span center according to the target beam span plan; Determine the center of the control point influence area in each section according to the control point information; Align the center of each beam span with the center of the influence area of ​​each control point, and determine the control section in each section based on the alignment result; Each control section is covered according to the target beam span solution, and the uncovered filling section in each section is determined according to the covering result.

4. A method for automatically arranging a railway bridge scheme according to any one of claims 1 to 3, characterized in that: Generating a target layout plan of the target bridge according to the covering result and the filling result includes: generating an initial layout plan of the target bridge according to the covering result and the filling result; Obtaining line curve information of the target bridge; Analyzing the beam joints of the target bridge according to the line curve information and the initial layout plan; adjusting the pier positions of the target bridge according to the analysis results; Determine the position of each control point according to the control point information; Performing collision detection based on the positional relationship between the position of each control point and the position of the bridge pier; A target layout plan of the target bridge is generated according to the collision detection result and the initial layout plan.

5. A railway bridge scheme automatic layout device, characterized in that: The railway bridge scheme automatic layout device includes: A control point acquisition module is used to obtain the control point information of the target bridge; A control point matching module is configured to obtain a safety factor of the target bridge; determine a required span of the target bridge based on the control point information and the safety factor; determine a candidate span among various beam span solutions in a preset beam library; match the required span with each candidate span, and use the beam span solution corresponding to the matched candidate span as the target beam span solution; a section covering module, configured to cover each section on the target bridge according to the target beam span solution, and determine uncovered filling sections in each section according to the covering result; A section filling module is configured to obtain a section size of each filling section; determine a simply supported beam corresponding to each filling section based on the section size and a preset filling strategy; fill each filling section based on the simply supported beam, wherein the simply supported beam includes an initial simply supported beam and an adjusted simply supported beam. The section filling module is further configured to determine an initial simply supported beam corresponding to each filling section based on the section size and the preset filling strategy; obtain the number of beams and the size of each initial simply supported beam; determine a remaining size to be adjusted for each filling section based on the number of beams and the size of the beams; and determine an adjusted simply supported beam corresponding to each filling section based on the size to be adjusted and the preset filling strategy. A scheme generating module is used to generate a target layout scheme of the target bridge according to the covering result and the filling result.

6. An automatic layout device for railway bridge schemes, characterized in that: The railway bridge scheme automatic layout device includes: a memory, a processor, and a railway bridge scheme automatic layout program stored in the memory and executable on the processor. The railway bridge scheme automatic layout program is configured to implement a railway bridge scheme automatic layout method as described in any one of claims 1 to 4.

7. A storage medium, characterized in that: The storage medium stores a railway bridge scheme automatic layout program, and when the railway bridge scheme automatic layout program is executed by the processor, an railway bridge scheme automatic layout method according to any one of claims 1 to 4 is implemented.

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