A method, device and storage medium for constructing a three-way variable approach bridge model

Abstract

The present application relates to a kind of three-way change approach bridge model construction method, device, equipment and storage medium, belong to water transport engineering technical field, wherein, the method includes by approach bridge axis to the multiple row frames of approach bridge simulation model is carried out coordinate calculation to obtain the three-dimensional coordinates of each row frame, so that the change of the plane and the elevation of approach bridge can be determined;According to the preset cross section data corresponding to the horn mouth of wharf side, middle section and shore side horn respectively, the slope of three-dimensional coordinates is calculated, to obtain the height of each row frame on cushion stone, so as to determine the change of approach bridge in cross section;The approach bridge simulation model can also be optimized according to the height of cushion stone and the three-dimensional coordinates of each row frame, so as to construct three-way change approach bridge model according to the change of approach bridge in plane, elevation and cross section, realize the quick and accurate parameter adjustment of three-way change special-shaped approach bridge, without manual parameter adjustment, save a lot of human resources and cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water transport engineering, and in particular to a three-way change approach bridge model construction method, device, equipment and storage medium. BACKGROUND

[0002] In water transport engineering, high-pile approach bridges are a widely used type of approach bridge structure, which generally consists of pile foundations, approach bridge beams, hollow slabs, surface layers, and cushion stones. In actual engineering projects, the approach bridge layout often presents three-way change irregular features such as planar trend diversification, longitudinal undulation changes, and transverse slope due to constraints such as geological structure and process layout, which brings great difficulties to design and construction.

[0003] Currently, the creation of high-pile approach bridge BIM models is still mainly manual and interactive. For simple and regular approach bridges, it is still feasible, but for three-way change irregular approach bridges, it is difficult to quickly and accurately determine the control point coordinates, component coordinates, and component parameters of the approach bridge. Frequent adjustment of model parameters is required, which is tedious and prone to errors. Designers need to have high professional skills and experience to cope with complex geometric changes, increasing the design cycle and cost and wasting a large amount of human resources and delaying the design progress.

[0004] Therefore, it is necessary to provide a three-way change approach bridge model construction method, device, equipment and storage medium to solve the technical problem that the existing high-pile approach bridge BIM model cannot quickly and accurately adjust the parameters of a three-way change irregular approach bridge, resulting in the need to waste a large amount of human resources and cost to adjust the three-way change irregular approach bridge model. SUMMARY

[0005] Therefore, it is necessary to provide a three-way change approach bridge model construction method, device, equipment and storage medium to solve the technical problem that the existing high-pile approach bridge BIM model cannot quickly and accurately adjust the parameters of a three-way change irregular approach bridge, resulting in the need to waste a large amount of human resources and cost to adjust the three-way change irregular approach bridge model.

[0006] To solve the above problems, in a first aspect, the present application provides a three-way change approach bridge model construction method, comprising:

[0007] determining an approach bridge axis according to an approach bridge simulation model; the approach bridge simulation model comprises a plurality of bent frames; the approach bridge simulation model is divided into a wharf side horn, a middle section, and a shore side horn;

[0008] performing coordinate calculation on the plurality of bent frames on the approach bridge simulation model according to the approach bridge axis to obtain three-dimensional coordinates of each bent frame;

[0009] The three-dimensional coordinates are subjected to slope calculation according to preset section data corresponding to the wharf side trumpet mouth, the middle section and the shore side trumpet mouth, so as to obtain the height of the cushion stone on each bent;

[0010] A three-way change approach model is constructed according to the height of the cushion stone and the three-dimensional coordinates of each bent.

[0011] In a possible implementation, the coordinate calculation of the plurality of bents on the approach simulation model according to the approach axis includes:

[0012] The starting point of the approach axis at the wharf side trumpet mouth is determined as an approach model base point;

[0013] A right-hand coordinate system is constructed with the approach model base point as the origin, so as to obtain an approach included angle between the approach axis and a transverse axis in the right-hand coordinate system;

[0014] The coordinate calculation of the plurality of bents on the approach simulation model according to the approach included angle is performed, so as to obtain the three-dimensional coordinates of each bent.

[0015] In a possible implementation, the coordinate calculation of the plurality of bents on the approach simulation model according to the approach included angle includes:

[0016] According to the approach simulation model, a first bent distance between adjacent bents in the plurality of bents is determined;

[0017] According to preset reference point coordinates, the approach included angle and the first bent distance, two-dimensional coordinates of each bent are obtained;

[0018] According to the two-dimensional coordinates and the elevation of each bent on the approach simulation model, three-dimensional coordinates of each bent are obtained.

[0019] In a possible implementation, the obtaining of the two-dimensional coordinates of each bent according to the preset reference point coordinates, the approach included angle and the first bent distance includes:

[0020] The first bent distance of each bent on the wharf side trumpet mouth is calculated according to the preset reference point coordinates one by one, so as to obtain the two-dimensional coordinates of each bent;

[0021] According to the direction of the middle section and the shore side trumpet mouth in the right-hand coordinate system and the approach included angle, a direction vector column vector is determined;

[0022] According to the preset reference point coordinates and the direction vector column vector, the first row support distance of each row support on the intermediate section and the shore side trumpet is calculated one by one, and the two-dimensional coordinates of each row support are obtained.

[0023] In a possible implementation, the three-dimensional coordinates of each row support are obtained according to the two-dimensional coordinates and the elevation of each row support on the approach bridge simulation model, and the three-dimensional coordinates of each row support are obtained.

[0024] According to the approach bridge simulation model, a plurality of control point row supports are determined, and a first elevation of each control point row support is set;

[0025] According to the first row support distance, a second row support distance of a non-control point row support between adjacent control point row supports is determined;

[0026] According to the first elevation and the two-dimensional coordinates of the control point row support, the second row support distance is calculated one by one to obtain a second elevation of each non-control point row support;

[0027] According to the two-dimensional coordinates and the second elevation of the non-control point row support, and the two-dimensional coordinates and the first elevation of each control point row support, the three-dimensional coordinates of each row support are obtained.

[0028] In a possible implementation, the approach bridge simulation model further includes a plurality of hollow plates; the preset section data includes an intermediate section width and an average width of the plurality of hollow plates on the intermediate section; and the height of the coping stone on each row support of the intermediate section is obtained by performing slope calculation on the three-dimensional coordinates according to the preset section data corresponding to the intermediate section, and the height arrangement mode of the plurality of coping stones of each row support on the approach bridge simulation model is set.

[0029] The height arrangement mode of the plurality of coping stones of each row support on the approach bridge simulation model is set.

[0030] According to the height arrangement mode, an approach bridge transverse slope is determined.

[0031] According to the intermediate section width and the average width of the hollow plates, the number of hollow plates and the actual width of each hollow plate are obtained.

[0032] According to the approach bridge transverse slope and the height arrangement mode, the height of a first coping stone and a height calculation formula are determined; the first coping stone is the coping stone with the maximum height.

[0033] According to the height calculation formula, the height of the first coping stone and the actual width are calculated one by one to obtain the height of each coping stone.

[0034] In a possible implementation, the three-dimensional coordinate of each row support is obtained according to the height of the coping stone and the three-dimensional coordinates of each row support.

[0035] Determining the longitudinal slope of each bent according to the difference in the longitudinal coordinates of the bents at adjacent control points;

[0036] A three-way variable approach bridge model is constructed according to the preset component layout rules and the longitudinal slope, the height arrangement, the height of each shim, the approach bridge axis, and the three-dimensional coordinates; the preset component layout rules are that the surface layer covers the approach bridge surface according to the longitudinal slope, the hollow slab is located below the surface layer according to the longitudinal slope, the starting coordinates and the end coordinates of the hollow slab are respectively the three-dimensional coordinates of two frames, each frame is provided with a crossbeam, the coordinates of the crossbeam are the coordinates of the center point of the frame, and the direction is perpendicular to the approach bridge axis, and the shim is installed between the hollow slab and the crossbeam according to the height arrangement and the height of each shim.

[0037] In a second aspect, the present invention further provides a device for constructing a three-way variable approach bridge model, comprising:

[0038] An axis determination module is used to determine the approach bridge axis according to an approach bridge simulation model; the approach bridge simulation model includes a plurality of bents; the approach bridge simulation model is divided into a pier-side bell mouth, a middle section, and a shore-side bell mouth;

[0039] A coordinate determination module, configured to calculate the coordinates of the multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent;

[0040] a height calculation module, configured to calculate the slope of the three-dimensional coordinates according to the preset section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth, respectively, to obtain the height of the pad stone on each bent;

[0041] The model optimization module is used to construct a three-dimensional variable approach bridge model according to the height of the pad stone and the three-dimensional coordinates of each bent frame.

[0042] In a third aspect, an embodiment of the present invention discloses an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various steps of the above-mentioned three-way variable approach bridge model construction method embodiment are implemented.

[0043] In a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various steps of the above-mentioned embodiment of the method for constructing a three-way variable approach bridge model are implemented.

[0044] The beneficial effects of the present invention are as follows: the coordinates of multiple frames of the approach bridge simulation model can be calculated through the approach bridge axis to obtain the three-dimensional coordinates of each frame, so that the changes in the plane and elevation of the approach bridge can be determined; the slope of the three-dimensional coordinates can also be calculated according to the preset section data corresponding to the pier-side bell mouth, the middle section and the shore-side bell mouth, so as to obtain the height of the pad stone on each frame, so as to determine the changes in the cross section of the approach bridge; the approach bridge simulation model can also be optimized according to the height of the pad stone and the three-dimensional coordinates of each frame, so that a three-dimensional change approach bridge model can be constructed according to the changes in the plane, elevation and cross section of the approach bridge, thereby realizing fast and accurate parameter adjustment of the three-dimensional change special-shaped approach bridge without manual parameter adjustment, saving a lot of human resources and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic flow chart of an embodiment of a method for constructing a three-way variable approach bridge model provided by the present invention;

[0046] Figure 2 A schematic structural diagram of an embodiment of a bridge approach simulation model provided by the present invention;

[0047] Figure 3 A schematic structural diagram of an embodiment of the rack model provided by the present invention

[0048] Figure 4 For the present invention Figure 1 A schematic flow chart of an embodiment of step S102;

[0049] Figure 5 A schematic diagram of a coordinate system of a right-hand coordinate system of a bridge approach simulation model provided by the present invention;

[0050] Figure 6 For the present invention Figure 4 A schematic flow chart of an embodiment of step S403;

[0051] Figure 7 A schematic structural diagram of an embodiment of the overall model of the approach bridge provided by the present invention;

[0052] Figure 8 A schematic structural diagram of an embodiment of the main components of the approach bridge modeling provided by the present invention;

[0053] Figure 9 A schematic structural diagram of an embodiment of a device for constructing a three-way variable approach bridge model provided by the present invention;

[0054] Figure 10 This is a schematic structural diagram of an embodiment of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0056] like Figure 1 As shown, a specific embodiment of the present invention discloses a method for constructing a three-way variable approach bridge model, comprising:

[0057] S101. Determine the approach bridge axis according to the approach bridge simulation model; the approach bridge simulation model includes multiple bents; the approach bridge simulation model is divided into a wharf-side bell mouth, a middle section, and a shore-side bell mouth.

[0058] The method for constructing a three-way changing approach bridge model provided in the embodiment of the present application can be applied to a bridge approach model construction system, wherein the construction of the three-way changing approach bridge model can be based on a software system running on a terminal device, and the terminal device can be a server, a tablet computer, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a mobile phone and other terminal devices. The embodiment of the present application does not impose any restrictions on the specific type of the terminal device.

[0059] The approach bridge simulation model can be a model obtained by simulating the approach bridge using simulation software. Figure 2 As shown in the figure, the approach bridge simulation model can be divided into the pier side bell mouth, the middle section and the shore side bell mouth. The approach bridge simulation model can include multiple bents and multiple hollow plates. The hollow plates can be installed between two adjacent bents. The bents are as follows: Figure 3 As shown, the bent frame is composed of beams and piles. The centerline of the bridge approach simulation model is the bridge approach axis. The piles are located below the beams and deep into the geology, supporting the entire bridge. By default, each bent frame is supported by four piles, arranged perpendicular to the bridge approach axis. The specific number of piles per bent frame can be set based on actual conditions and is not limited in this embodiment.

[0060] S102. Calculate the coordinates of multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent.

[0061] Wherein, in order to obtain the variation of the plane and the elevation of the approach bridge, the coordinates of each bent on the approach bridge simulation model can be calculated after the approach bridge axis is determined, and specifically, the center point of the crossbeam of each bent can be calculated to obtain the three-dimensional coordinates of each bent, wherein the horizontal coordinate and the vertical coordinate of the bent can determine the variation of the approach bridge in the plane, and the vertical coordinate and the vertical coordinate of the bent can determine the variation of the approach bridge in the elevation.

[0062] S103, the height of the cushion stone on each bent is obtained by calculating the slope of the three-dimensional coordinates according to the preset cross-section data corresponding to the wharf side trumpet, the middle section and the shore side trumpet respectively.

[0063] Wherein, on the approach bridge simulation model, the preset cross-section data of the wharf side trumpet, the middle section and the shore side trumpet can be set respectively, for example, the preset cross-section data of the wharf side trumpet can include the width of the wharf side trumpet and the average width of the hollow plate on the wharf side trumpet, and the preset cross-section data of the middle section can include the width of the middle section and the average width of the hollow plate on the middle section, and the preset cross-section data of the shore side trumpet can include the width of the shore side trumpet and the average width of the hollow plate on the shore side trumpet, so that the three-dimensional coordinates of the corresponding bent can be calculated according to the corresponding preset cross-section data, and when the calculation of all the bents of the wharf side trumpet, the middle section and the shore side trumpet is completed, the height of the cushion stone on each bent can be obtained, for example, the three-dimensional coordinates of the bent can be calculated according to the width of the wharf side trumpet and the average width of the hollow plate on the wharf side trumpet, and the height of the cushion stone on each bent belonging to the wharf side trumpet can be obtained, and the same is true for the middle section and the shore side trumpet, and thus the height of the cushion stone on each bent on the approach bridge simulation model can be obtained, so that the variation of the approach bridge in the cross section can be determined.

[0064] S104, a three-way variation approach bridge model is constructed according to the height of the cushion stone and the three-dimensional coordinates of each bent.

[0065] Wherein, after the changes of the plane, elevation and cross section of the approach bridge are obtained, the corresponding adjustment parameters can be obtained according to the corresponding changes, and specifically, a three-way change approach bridge model can be constructed according to the height of the cushion stone and the three-dimensional coordinates of each bent, for example, the three-way change approach bridge model can include a surface layer, a hollow plate, a cross beam and a cushion stone, so that the surface layer, the hollow plate, the cross beam and the cushion stone can be installed according to the height of the cushion stone and the three-dimensional coordinates of each bent to construct a three-way change approach bridge model, and the specific installation method can be set according to the actual situation, wherein the components participating in the three-way approach bridge modeling in the simulation software can also include supports, struts, tie rods, wheel guards, railings, ground beams, tie rods and the like, the arrangement data of which can be calculated based on S101-S104, and the data is quickly arranged, and the specific calculation process can be set according to the actual situation, which is not limited by the embodiments of the application.

[0066] Compared with the prior art, the three-dimensional coordinates of each bent can be calculated by the approach bridge axis on the approach bridge simulation model, so that the changes of the plane and the elevation of the approach bridge can be determined; the slope of the three-dimensional coordinates can be calculated according to the corresponding preset cross section data of the wharf side horn, the middle section and the shore side horn, so that the height of the cushion stone on each bent can be determined, so that the changes of the cross section of the approach bridge can be determined; and the approach bridge simulation model can be optimized according to the height of the cushion stone and the three-dimensional coordinates of each bent, so that a three-way change approach bridge model can be constructed according to the changes of the plane, the elevation and the cross section of the approach bridge, and the three-way change special-shaped approach bridge can be quickly and accurately adjusted without manual adjustment, saving a lot of human resources and costs.

[0067] In some embodiments of the application, as shown in Figure 4 Step S102 includes:

[0068] S401, determining the starting point of the approach bridge axis at the wharf side horn as the approach bridge model base point;

[0069] S402, constructing a right-hand coordinate system with the approach bridge model base point as the origin to obtain the approach bridge angle between the approach bridge axis and the transverse axis in the right-hand coordinate system;

[0070] S403, performing coordinate calculation on the plurality of bents on the approach bridge simulation model according to the approach bridge angle to obtain the three-dimensional coordinates of each bent.

[0071] In specific embodiments of the application, as shown in Figure 5 Figure 5 ​As shown in the right-hand coordinate system diagram of the approach bridge simulation model, the start point of the approach bridge axis at the trumpet mouth on the wharf side can be determined as the approach bridge model base point, then the approach bridge model base point is determined as the origin to construct the right-hand coordinate system, the X positive direction is horizontally to the right, the Y direction is vertically upward relative to the X axis, and the Z direction is the approach bridge elevation, so that the angle between the approach bridge axis and the horizontal direction of the transverse axis, i.e., the approach bridge angle, can be determined θ Then the first pier distance of each pier on the trumpet mouth on the wharf side can be calculated according to the preset reference point coordinates and the approach bridge angle, and the two-dimensional coordinates of each pier can be obtained.

[0072] In some embodiments of the present application, as shown in Figure 6 Step S403 includes:

[0073] S601, according to the approach bridge simulation model, the first pier distance between adjacent piers in the plurality of piers is determined.

[0074] In specific embodiments of the present application, a preset reference point coordinate can be set, for example, the preset reference point coordinate can be the center coordinate of the edge line of the platform side near the trumpet mouth on the wharf side, or can be the coordinate of other positions, which can be set according to actual conditions, and the embodiments of the present application are not limited thereto. The first pier distance between adjacent piers in the plurality of piers can also be determined according to the distance between adjacent piers set according to the approach bridge simulation model .

[0075] S602, according to the preset reference point coordinates, the approach bridge angle and the first pier distance, the two-dimensional coordinates of each pier are obtained.

[0076] S603, according to the two-dimensional coordinates and the elevation of each pier on the approach bridge simulation model, the three-dimensional coordinates of each pier are obtained.

[0077] In specific embodiments of the present application, the two-dimensional coordinates of each pier can be calculated according to the preset reference point coordinates, the approach bridge angle and the first pier distance, and then the three-dimensional coordinates of each pier can be obtained by corresponding calculation according to the two-dimensional coordinates of each pier and the elevation of each pier on the approach bridge simulation model.

[0078] In some embodiments of the present application, step S602 includes:

[0079] The first pier distance of each pier on the trumpet mouth on the wharf side is calculated one by one according to the preset reference point coordinates, and the two-dimensional coordinates of each pier are obtained.

[0080] In a specific embodiment of the present invention, the two-dimensional coordinates of the center of each rack are expressed as , the preset reference point coordinates are expressed as P 0, since the racks at the flare on the wharf side are parallel to the horizontal line, the two-dimensional coordinates of each rack on the flare on the wharf side are P i The calculation of is shown in formula (1):

[0081] (1)

[0082] Where, d i Indicates the i Seat rack and i-1 The first rack distance between racks; P i For the i The two-dimensional coordinates of the seat rack; s is the rack number on the flare on the dock side.

[0083] Determine the direction vector column vector based on the directions of the middle section and the shore-side bell mouth in the right-hand coordinate system and the angle between the approach bridges;

[0084] The first rack distance of each rack on the middle section and the shore side bell mouth is calculated one by one according to the preset reference point coordinates and the direction vector column vector to obtain the two-dimensional coordinates of each rack.

[0085] In a specific embodiment of the present invention, since the bent centers from the middle section to the bell mouth of the shore section are arranged along the axial direction, the direction vector column vector can be calculated based on the approach bridge angle, as shown in formula (2):

[0086] (2)

[0087] Where, θ is the angle between the approach bridge axis and the horizontal direction, cos θ To calculate x The direction vector used when the axis coordinates are column vectors, sinθ To calculate y The coordinates of the axis are the direction vector column vectors used. The center of the racks from the middle section to the shore section is arranged along the axial direction, so the two-dimensional coordinates of each rack on the flare from the middle section to the shore section are P i The calculation of is shown in formula (3):

[0088] (3)

[0089] Where s is the rack number between the middle section and the bell mouth of the shore section; nThe first row distance The number in the formula (3) is the first row distance.

[0090] In some embodiments of the present application, the step S603 comprises:

[0091] According to the simulation model of the approach bridge, a plurality of control point rows are determined, and a first elevation of each control point row is set;

[0092] In specific embodiments of the present application, as shown in the formula (4), Figure 7 The 1-13 in the formula (4) are the rows, the hollow plates between adjacent rows, the special rows on the simulation model of the approach bridge can be determined as the control point rows, for example, the rows 1, 3, 7, 11 and 13 in the formula (4), these rows can be the starting rows, the rows at the turning points, or the rows with the largest change, the control point rows can be determined manually, and the corresponding first elevation can be set according to the actual situation of each control point row, the specific setting process and size can be set according to the actual situation, which is not limited in the embodiments of the present application. After the plurality of control point rows are determined, the remaining rows on the simulation model of the approach bridge are non-control point rows, for example, the rows 2, 4, 5, 6, 8, 9, 10 and 12 in the formula (4). Figure 7 Figure 7 Figure 7

[0093] According to the first row distance, the second row distance of the non-control point row between adjacent control point rows is determined;

[0094] The second elevation of each non-control point row is obtained by calculating the second row distance according to the first elevation and the two-dimensional coordinates of the control point row;

[0095] In specific embodiments of the present application, two control point rows are denoted as and , it is assumed that there are no other control point rows between the two control point rows, but there are a certain number of non-control point rows, denoted as the formula (4):

[0096] (4)

[0097] In the above calculation of the two-dimensional coordinates, the first elevation of the control point row has been obtained, which is manually input, that is, z, from the control point row y to the control point row , the second row distance between adjacent rows, for example, the control point rows 3 and 7, the non-control point rows therebetween are 4, 5 and 6, denote the distance between adjacent rows, then the second elevation of each non-control point row is calculated as shown in the formula (5): ​​​​

[0098] (5)

[0099] wherein, and are the first elevations of the control point alignments and the control point alignments respectively; and are the axis coordinates of the control point alignments and the control point alignments y respectively; is the three-dimensional coordinate of the control point alignments , then when calculating the second elevation, is the z coordinate value in the three-dimensional coordinate.

[0100] According to the two-dimensional coordinates and the second elevation of the non-control point alignments and the two-dimensional coordinates and the first elevation of each control point alignment, the three-dimensional coordinates of each alignment are obtained.

[0101] In specific embodiments of the present application, the three-dimensional coordinates of each control point alignment can be obtained according to the two-dimensional coordinates and the first elevation of each control point alignment, taking the first elevation as the z axis coordinate, and similarly, the three-dimensional coordinates of each non-control point alignment can be obtained according to the two-dimensional coordinates and the second elevation of each non-control point alignment, taking the second elevation as the z axis coordinate.

[0102] In some embodiments of the present application, the approach bridge simulation model further comprises a plurality of hollow plates; the preset cross-section data comprises a middle section width and an average width of the plurality of hollow plates on the middle section; and the step of performing slope calculation on the three-dimensional coordinates according to the preset cross-section data corresponding to the middle section in step S103 to obtain the height of the cushion stone on each alignment of the middle section comprises:

[0103] arranging the heights of the plurality of cushion stones on each alignment of the approach bridge simulation model;

[0104] determining the approach bridge transverse slope according to the height arrangement;

[0105] In specific embodiments of the present application, the height arrangement of the plurality of cushion stones on each alignment of the approach bridge simulation model can be set according to actual conditions, and the height arrangement can be gradually decreasing height, gradually increasing height, first increasing and then decreasing, etc. The height arrangement of each alignment can be the same or different, and can be set differently according to different positions. Thus, the corresponding approach bridge transverse slope can be determined according to different height arrangements, wherein the approach bridge transverse slope can be limited to between 0~10°.

[0106] According to the width of the middle section and the average width of the hollow slabs, the number of hollow slabs and the actual width of each hollow slab are obtained;

[0107] Determine the height and calculation formula of the first pad stone based on the transverse slope and height arrangement of the approach bridge; the first pad stone is the highest pad stone;

[0108] According to the height calculation formula, the height and actual width of the first pad stone are calculated for the other pad stones one by one to obtain the height of each pad stone.

[0109] In a specific embodiment of the present invention, the width of the middle section can be adjusted according to the and the average width of the hollow core slab Calculating the number of hollow core slabs (in is the rounding down symbol) and the actual width of each hollow core slab ,in, , i Expressed as i The specific calculation process can be set according to the actual situation, and the embodiment of the present invention is not limited here. Among them, the width of the middle section and the average width of the hollow slab can be modified and set according to the actual situation. After the modification, the number of hollow slabs calculated and the actual width of each hollow slab will also be modified accordingly. Then, the corresponding height calculation formula and the height of the first pad can be determined according to different height arrangements and the transverse slope of the approach bridge. For example, in the case of a left-to-side transverse slope, the pad with the largest height on the far left can determine the first pad, and the height The default value can be 79mm. The height calculation formula of other shims after the first shim is as shown in formula (6):

[0110] (6)

[0111] Where, As a stepping stone i height; As a stepping stone i-1 height; is the actual width of pad stone i; As a stepping stone i-1 The actual width of It is the transverse slope of the approach bridge.

[0112] In the case of a right-facing slope, the highest pad on the far right, that is, the last pad, is the first pad. The default value is 79mm, so the height calculation formula of other shims before the last shim is as shown in formula (7):

[0113] (7)

[0114] wherein, is the height of the cushion stone i-1 ; is the actual width of the cushion stone i-1 .

[0115] For the case of bidirectional transverse slope, the height of the first cushion stone , the height of the last cushion stone is 79mm by default, and the height calculation formula of the front half of the cushion stone is shown as formula (8):

[0116] (8)

[0117] The height calculation formula of the back half of the cushion stone is shown as formula (9):

[0118] (9)

[0119] Then the height of each cushion stone on each row of supports can be calculated through the above formula.

[0120] In some embodiments of the present application, step S104 comprises:

[0121] determining the longitudinal slope of each row of supports according to the difference of the longitudinal coordinates of adjacent control point row of supports;

[0122] In specific embodiments of the present application, in order to more accurately optimize the approach bridge simulation model, it is also necessary to determine the longitudinal slope of each row of supports according to the difference of the longitudinal coordinates of adjacent control point row of supports, for example, adjacent control point row of supports 1 and 3, and the difference of the y-axis of adjacent control point row of supports 1 and 3 is the longitudinal slope of row of supports 1, 2 and 3, and the same applies to others, which will not be described in detail in the embodiments of the present application, and the longitudinal slope of each row of supports can be obtained.

[0123] According to the preset component arrangement rule and the longitudinal slope, the height arrangement mode, the height of each cushion stone, the approach bridge axis and the three-dimensional coordinates, a three-way change approach bridge model is constructed; the preset component arrangement rule is that the surface layer covers the surface of the approach bridge according to the longitudinal slope, the hollow slab is located below the surface layer according to the longitudinal slope, the start point coordinate and the end point coordinate of the hollow slab are the three-dimensional coordinates of the two rows of supports respectively, each row of supports is provided with a cross beam, the coordinate of the cross beam is the coordinate of the center point of the row of supports, the direction is perpendicular to the approach bridge axis, and the cushion stone is installed between the hollow slab and the cross beam according to the height arrangement mode and the height of each cushion stone.

[0124] In specific embodiments of the present application, as shown in Figure 8 , the main components of the approach bridge modeling include the surface layer, the hollow slab, the cross beam, the cushion stone and the pile foundation, and the hollow slab includes the middle hollow slab and the edge hollow slab.

[0125] The specific content of the preset component arrangement rule can be:

[0126] The surface layer arrangement: the surface layer can be arranged on the surface of the approach bridge according to the longitudinal slope, and the default thickness can be 15 mm; one piece of surface layer is arranged between every two adjacent control point frames, and the start point and end point coordinates of the surface layer are the three-dimensional coordinates of the two frames, and the elevation is consistent with the elevation of the frame.

[0127] The hollow slab arrangement: the hollow slab is arranged below the surface layer based on the longitudinal slope, and is used for supporting the surface layer and the traffic load, and the default thickness can be 900 mm; the hollow slab is arranged between two adjacent frames, and the start point and end point coordinates of the hollow slab are the three-dimensional coordinates of the two frames, and the elevation is the elevation of the frame minus the thickness of the surface layer.

[0128] The crossbeam arrangement: the crossbeam is located at the center of the frame, and one crossbeam is arranged in each frame. The coordinates of the crossbeam are the center point of the frame, and the direction is perpendicular to the axis of the approach bridge. After being arranged, the crossbeam needs to be rotated, and the rotation angle is θ-90°, wherein θ is the angle of the axis of the approach bridge in the above process.

[0129] The cushion stone arrangement: the cushion stone can be arranged between the hollow slab and the crossbeam according to the height arrangement mode and the height of each cushion stone, and two rows of cushion stones are arranged in each frame and are distributed on the two sides of the crossbeam. The height and arrangement mode of the cushion stone are determined according to the calculation in the above process.

[0130] The pile foundation arrangement: the pile foundation is located below the crossbeam and penetrates into the geology, and is used for supporting the entire bridge. By default, each frame is supported by 4 pile foundations, and the arrangement direction of the pile foundations is perpendicular to the axis of the approach bridge.

[0131] In addition, the components involved in the approach bridge modeling in the software also include supports, struts, tie rods, wheel guards, railings, ground beams, tie rods and the like, and the arrangement data of the components can be calculated based on the above calculation process and arranged quickly based on the data.

[0132] The embodiment of the application adopts a forward design process to calculate model data and build a model, reduces the difficulty of approach bridge design, and improves the overall efficiency and accuracy of approach bridge design. In the XY plane, the angle between the approach bridge axis and the terminal rear line and the angle between the horn and the shore connection section can be directly set; in the YZ plane, the longitudinal variation is designed by an interpolation method; and in the XZ plane, the transverse slope is designed by adjusting the cushion stone height. Through a simple parameterized input mode, efficient setting of any three-dimensional design parameters of the approach bridge is realized, and a large amount of repeated operation in interactive modeling is reduced.

[0133] In order to better implement the three-way change approach bridge model construction method in the embodiment of the application, on the basis of the three-way change approach bridge model construction method, correspondingly, the embodiment of the application also provides a three-way change approach bridge model construction device, such as Figure 9As shown, the three-way variable approach bridge model building device 900 includes:

[0134] An axis determination module 901 is configured to determine the approach bridge axis based on an approach bridge simulation model; the approach bridge simulation model includes a plurality of bents; and the approach bridge simulation model is divided into a pier-side bell mouth, a middle section, and a shore-side bell mouth.

[0135] A coordinate determination module 902 is used to calculate the coordinates of multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent;

[0136] The height calculation module 903 is used to calculate the slope of the three-dimensional coordinates based on the preset cross-section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth, and obtain the height of the pad stone on each bent;

[0137] The model optimization module 904 is used to construct a three-dimensional variable approach bridge model based on the height of the pad stone and the three-dimensional coordinates of each bent.

[0138] The three-way variable approach bridge model construction device 900 provided in the above embodiment can implement the technical solution described in the above three-way variable approach bridge model construction method embodiment. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above three-way variable approach bridge model construction method embodiment, which will not be repeated here.

[0139] like Figure 10 As shown, the present invention also provides an electronic device 1000. The electronic device 1000 includes a processor 1001, a memory 1002 and a display 1003. Figure 10 Only some of the components of the electronic device 1000 are shown, but it should be understood that it is not required to implement all of the shown components, and more or fewer components may be implemented instead.

[0140] In some embodiments, the memory 1002 may be an internal storage unit of the electronic device 1000, such as a hard disk or memory of the electronic device 1000. In other embodiments, the memory 1002 may also be an external storage device of the electronic device 1000, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 1000.

[0141] Furthermore, the memory 1002 may include both an internal storage unit of the electronic device 1000 and an external storage device. The memory 1002 is used to store application software installed in the electronic device 1000 and various data.

[0142] The processor 1001 may be a central processing unit (CPU), a microprocessor, or other data processing chip in some embodiments, for running program codes stored in the memory 1002 or processing data, such as the three-dimensional changeable approach bridge model construction method in the present application.

[0143] The display 1003 may be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, etc. in some embodiments. The display 1003 is used to display information of the electronic device 1000 and to display a visualized user interface. The components 1001-1003 of the electronic device 1000 communicate with each other through a system bus.

[0144] In some embodiments of the present application, when the processor 1001 executes the three-dimensional changeable approach bridge model construction program in the memory 1002, the following steps can be implemented:

[0145] According to the approach bridge simulation model, the approach bridge axis is determined; the approach bridge simulation model includes a plurality of bents; the approach bridge simulation model is divided into a wharf side trumpet, a middle section, and a shore side trumpet;

[0146] According to the approach bridge axis, the coordinates of the plurality of bents on the approach bridge simulation model are calculated to obtain the three-dimensional coordinates of each bent;

[0147] According to the preset cross-section data corresponding to the wharf side trumpet, the middle section, and the shore side trumpet, the slope of the three-dimensional coordinates is calculated to obtain the height of the cushion stone on each bent;

[0148] According to the height of the cushion stone and the three-dimensional coordinates of each bent, a three-dimensional changeable approach bridge model is constructed.

[0149] It should be understood that: when the processor 1001 executes the three-dimensional changeable approach bridge model construction program in the memory 1002, in addition to the above functions, other functions can also be implemented, which can be referred to the description of the corresponding method embodiments.

[0150] Further, the type of the electronic device 1000 is not limited in the embodiments of the present application. The electronic device 1000 can be a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, or the like. Exemplary embodiments of the portable electronic device include, but are not limited to, a portable electronic device running an IOS, an android, a microsoft, or other operating system. The portable electronic device can also be other portable electronic devices, such as a laptop computer having a touch-sensitive surface (e.g., a touch panel), and the like. It should also be understood that, in some other embodiments of the present application, the electronic device 1000 can not be a portable electronic device, but a desktop computer having a touch-sensitive surface (e.g., a touch panel).

[0151] Accordingly, the embodiments of the present application also provide a computer readable storage medium for storing computer readable programs or instructions, which, when executed by a processor, can implement the three-way changeable bridge model construction method steps or functions provided by the above-mentioned method embodiments.

[0152] Those skilled in the art can understand that all or part of the processes of the above-mentioned embodiments can be completed by a computer program instructing related hardware (such as a processor, a controller, etc.) to complete. The computer program can be stored in a computer readable storage medium. The computer readable storage medium includes a magnetic disk, an optical disk, a read-only memory, a random access memory, and the like.

[0153] The above describes in detail a three-way changeable bridge model construction method, device, equipment, and storage medium provided by the present application. The principle and implementation manner of the present application are described by applying specific examples. The above embodiment descriptions are only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation manner and application range can be changed according to the idea of the present application. In summary, the content of the present application should not be understood as a limitation.

Claims

1. A method for constructing a three-way variable approach bridge model, characterized in that: include: Determine the approach bridge axis based on the approach bridge simulation model; The approach bridge simulation model includes a plurality of bents; the approach bridge simulation model is divided into a pier side bell mouth, a middle section and a shore side bell mouth; Calculating coordinates of the multiple bents on the bridge approach simulation model according to the bridge approach axis to obtain three-dimensional coordinates of each bent; Calculating the slope of the three-dimensional coordinates according to the preset section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth, respectively, to obtain the height of the pad stone on each bent; Constructing a three-dimensional variable approach bridge model according to the height of the pad stone and the three-dimensional coordinates of each bent frame; The step of calculating coordinates of the multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain three-dimensional coordinates of each bent, including: Determine the starting point of the approach bridge axis at the flared mouth on the wharf side as the approach bridge model base point; A right-handed coordinate system is constructed with the base point of the approach bridge model as the origin, and an angle between the approach bridge axis and the horizontal axis in the right-handed coordinate system is obtained; Calculating coordinates of the multiple bents on the bridge approach simulation model according to the bridge approach angle to obtain three-dimensional coordinates of each bent; The approach bridge simulation model further includes a plurality of hollow slabs; the preset section data includes a middle section width and an average width of the plurality of hollow slabs in the middle section; and the slope of the three-dimensional coordinates is calculated based on the preset section data corresponding to the middle section to obtain the height of the pad stone on each bent in the middle section, including: Setting the height arrangement of multiple shims of each bent frame on the approach bridge simulation model; Determine the transverse slope of the approach bridge according to the height arrangement; Obtaining the number of the hollow slabs and the actual width of each hollow slab according to the width of the middle section and the average width of the hollow slabs; Determine the height and height calculation formula of the first pad stone according to the transverse slope of the approach bridge and the height arrangement; the first pad stone is the pad stone with the largest height; Calculate the height of the first pad stone and the actual width of the other pad stones one by one according to the height calculation formula to obtain the height of each pad stone; The method of constructing a three-dimensional variable bridge approach model according to the height of the bolster and the three-dimensional coordinates of each bent comprises: Determine the longitudinal slope of each bent according to the difference in the longitudinal coordinates of the adjacent control point bents; A three-way variable approach bridge model is constructed according to the preset component layout rules and the longitudinal slope, the height arrangement, the height of each shim, the approach bridge axis, and the three-dimensional coordinates; the preset component layout rules are that the surface layer covers the approach bridge surface according to the longitudinal slope, the hollow slab is located below the surface layer according to the longitudinal slope, the starting coordinates and the end coordinates of the hollow slab are respectively the three-dimensional coordinates of two frames, each frame is provided with a crossbeam, the coordinates of the crossbeam are the coordinates of the center point of the frame, and the direction is perpendicular to the approach bridge axis, and the shim is installed between the hollow slab and the crossbeam according to the height arrangement and the height of each shim.

2. The method for constructing a three-way variable approach bridge model according to claim 1, characterized in that: The step of calculating coordinates of the multiple bents on the bridge approach simulation model according to the bridge approach angle to obtain three-dimensional coordinates of each bent includes: determining a first bent distance between adjacent bents among the plurality of bents according to the bridge approach simulation model; Obtaining the two-dimensional coordinates of each bent frame according to the preset reference point coordinates, the bridge approach angle and the first bent frame distance; The three-dimensional coordinates of each bent are obtained according to the two-dimensional coordinates and the elevation of each bent on the approach bridge simulation model.

3. The method for constructing a three-way variable approach bridge model according to claim 2, characterized in that: The step of obtaining the two-dimensional coordinates of each bent frame according to the preset reference point coordinates, the bridge approach angle, and the first bent frame distance includes: Calculating the first rack distance of each of the racks on the dock-side bell mouth one by one according to the preset reference point coordinates to obtain the two-dimensional coordinates of each of the racks; Determine a direction vector column vector according to the directions of the middle section and the shore-side bell mouth in the right-hand coordinate system and the included angle of the bridge approach; The first rack distance of each rack on the middle section and the shore-side bell mouth is calculated one by one according to the preset reference point coordinates and the direction vector column vector to obtain the two-dimensional coordinates of each rack.

4. The method for constructing a three-way variable approach bridge model according to claim 2, characterized in that: The step of obtaining the three-dimensional coordinates of each bent frame according to the two-dimensional coordinates and the elevation of each bent frame on the approach bridge simulation model comprises: Determine a plurality of control point bents according to the bridge approach simulation model, and set a first elevation of each control point bent; Determining a second rack-bent distance between adjacent control-point racks and non-control-point racks based on the first rack-bent distance; Calculating the distances of the second racks one by one according to the first elevations and two-dimensional coordinates of the control point racks to obtain the second elevations of each non-control point rack; The three-dimensional coordinates of each rack are obtained according to the two-dimensional coordinates and the second elevation of the non-control point rack and the two-dimensional coordinates and the first elevation of each control point rack.

5. A three-way variable approach bridge model construction device, characterized in that: include: An axis determination module is used to determine the approach bridge axis according to the approach bridge simulation model; The approach bridge simulation model includes a plurality of bents; the approach bridge simulation model is divided into a pier side bell mouth, a middle section and a shore side bell mouth; A coordinate determination module, configured to calculate the coordinates of the multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent; a height calculation module, configured to calculate the slope of the three-dimensional coordinates according to the preset section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth, respectively, to obtain the height of the pad stone on each bent; A model optimization module is used to construct a three-dimensional variable approach bridge model according to the height of the pad stone and the three-dimensional coordinates of each bent frame; The step of calculating coordinates of the multiple bents on the approach bridge simulation model according to the approach bridge axis to obtain three-dimensional coordinates of each bent, including: Determine the starting point of the approach bridge axis at the flared mouth on the wharf side as the approach bridge model base point; A right-handed coordinate system is constructed with the base point of the approach bridge model as the origin, and an angle between the approach bridge axis and the horizontal axis in the right-handed coordinate system is obtained; Calculating coordinates of the multiple bents on the bridge approach simulation model according to the bridge approach angle to obtain three-dimensional coordinates of each bent; The approach bridge simulation model further includes a plurality of hollow slabs; the preset section data includes a middle section width and an average width of the plurality of hollow slabs in the middle section; and the slope of the three-dimensional coordinates is calculated based on the preset section data corresponding to the middle section to obtain the height of the pad stone on each bent in the middle section, including: Setting the height arrangement of multiple shims of each bent frame on the approach bridge simulation model; Determine the transverse slope of the approach bridge according to the height arrangement; Obtaining the number of the hollow slabs and the actual width of each hollow slab according to the width of the middle section and the average width of the hollow slabs; Determine the height and height calculation formula of the first pad stone according to the transverse slope of the approach bridge and the height arrangement; the first pad stone is the pad stone with the largest height; Calculate the height of the first pad stone and the actual width of the other pad stones one by one according to the height calculation formula to obtain the height of each pad stone; The method of constructing a three-dimensional variable bridge approach model according to the height of the bolster and the three-dimensional coordinates of each bent comprises: Determine the longitudinal slope of each bent according to the difference in the longitudinal coordinates of the adjacent control point bents; A three-way variable approach bridge model is constructed according to the preset component layout rules and the longitudinal slope, the height arrangement, the height of each shim, the approach bridge axis, and the three-dimensional coordinates; the preset component layout rules are that the surface layer covers the approach bridge surface according to the longitudinal slope, the hollow slab is located below the surface layer according to the longitudinal slope, the starting coordinates and the end coordinates of the hollow slab are respectively the three-dimensional coordinates of two frames, each frame is provided with a crossbeam, the coordinates of the crossbeam are the coordinates of the center point of the frame, and the direction is perpendicular to the approach bridge axis, and the shim is installed between the hollow slab and the crossbeam according to the height arrangement and the height of each shim.

6. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the method for constructing a three-way variable approach bridge model according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for constructing a three-way variable approach bridge model according to any one of claims 1 to 4 are implemented.

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