Three-way change approach bridge model construction method and device, equipment and storage medium

Abstract

The invention relates to a three-way change approach bridge model construction method, device and equipment and a storage medium, and belongs to the technical field of water transportation engineering.The method comprises the steps that coordinate calculation is conducted on a plurality of bent frames of an approach bridge simulation model through an approach bridge axis to obtain three-dimensional coordinates of each bent frame, and therefore the change conditions of the plane and the vertical face of an approach bridge can be determined; performing gradient calculation on the three-dimensional coordinates according to preset section data corresponding to the wharf side horn mouth, the middle section and the shore side horn mouth to obtain the height of a padstone on each bent frame, so as to determine the change condition of the approach bridge on the cross section; and the approach bridge simulation model can be optimized according to the height of the padstone and the three-dimensional coordinate of each bent frame, so that a three-way change approach bridge model is constructed according to the change conditions of the approach bridge on the plane, the vertical face and the cross section, rapid and accurate parameter adjustment of the three-way change special-shaped approach bridge is realized, manual parameter adjustment is not needed, and the accuracy of parameter adjustment is improved. And a lot of human resources and cost are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of water transportation engineering, and particularly to a method, device, equipment and storage medium for constructing a three-way variable approach bridge model. Background Technique

[0002] In water transportation engineering, the high-pile approach bridge is a widely adopted approach bridge structure type, which generally consists of components such as pile foundations, approach bridge cross beams, hollow slabs, surface layers, and bearing pads. In actual engineering projects, the layout of the approach bridge often presents three-way variable special-shaped characteristics of diversified plane orientations, longitudinal undulations, and transverse slopes due to constraints such as geological structures and technological layouts, bringing great difficulties to design and construction.

[0003] Currently, the creation of the BIM model of the high-pile approach bridge still mainly relies on manual interaction. It is feasible for simple and regular approach bridges, but for the three-way variable special-shaped approach bridge, it is difficult to quickly and accurately determine the control point coordinates, component coordinates, and component parameters of the approach bridge, and it is necessary to frequently adjust the model parameters. The operation is cumbersome and error-prone. Designers need to have high professional skills and experience to handle complex geometric changes, which increases the design cycle and cost, wastes a large amount of human resources, and extremely delays the design progress.

[0004] Therefore, there is an urgent need to propose a method, device, equipment and storage medium for constructing a three-way variable approach bridge model to solve the technical problem in the prior art that the BIM model of the high-pile approach bridge cannot quickly and accurately adjust the parameters of the three-way variable special-shaped approach bridge, resulting in a large waste of human resources and costs for the adjustment of the three-way variable special-shaped approach bridge model. Summary of the Invention

[0005] In view of this, it is necessary to provide a method, device, equipment and storage medium for constructing a three-way variable approach bridge model to solve the technical problem in the prior art that the BIM model of the high-pile approach bridge cannot quickly and accurately adjust the parameters of the three-way variable special-shaped approach bridge, resulting in a large waste of human resources and costs for the adjustment of the three-way variable special-shaped approach bridge model.

[0006] To solve the above problems, in the first aspect, the present invention provides a method for constructing a three-way variable approach bridge model, including: Determine the approach bridge axis according to the approach bridge simulation model; the approach bridge simulation model includes a plurality of bent frames; the approach bridge simulation model is divided into a dock-side bell mouth, a middle section, and a shore-side bell mouth; Calculate the coordinates of the plurality of bent frames on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent frame; Calculate the slope of the three-dimensional coordinates according to the preset section data corresponding to the dock-side bell mouth, the middle section, and the shore-side bell mouth respectively to obtain the height of the bearing pad on each bent frame; Construct a three-way variable approach bridge model based on the height of the bearing pad stone and the three-dimensional coordinates of each bent.

[0007] In a possible implementation, the calculating the three-dimensional coordinates of each bent on the approach bridge simulation model according to the approach bridge axis includes: Determine the starting point of the approach bridge axis at the trumpet opening on the wharf side as the approach bridge model base point; Construct a right-handed coordinate system with the approach bridge model base point as the origin, and obtain the approach bridge angle between the approach bridge axis and the horizontal axis in the right-handed coordinate system; Calculate the three-dimensional coordinates of each bent on the approach bridge simulation model according to the approach bridge angle.

[0008] In a possible implementation, the calculating the three-dimensional coordinates of each bent on the approach bridge simulation model according to the approach bridge angle includes: Determine the first bent distance between adjacent bents among the multiple bents according to the approach bridge simulation model; Obtain the two-dimensional coordinates of each bent according to the preset reference point coordinates, the approach bridge angle, and the first bent distance; Obtain the three-dimensional coordinates of each bent according to the two-dimensional coordinates and the elevation of each bent on the approach bridge simulation model.

[0009] In a possible implementation, the obtaining the two-dimensional coordinates of each bent according to the preset reference point coordinates, the approach bridge angle, and the first bent distance includes: Calculate the first bent distance of each bent on the trumpet opening on the wharf side one by one according to the preset reference point coordinates to obtain the two-dimensional coordinates of each bent; Determine the direction vector column vector according to the directions of the middle section and the trumpet opening on the shore side in the right-handed coordinate system and the approach bridge angle; Calculate the first bent distance of each bent on the middle section and the trumpet opening on the shore side one by one according to the preset reference point coordinates and the direction vector column vector to obtain the two-dimensional coordinates of each bent.

[0010] In a possible implementation, the obtaining the three-dimensional coordinates of each bent according to the two-dimensional coordinates and the elevation of each bent on the approach bridge simulation model includes: Determine multiple control point bents according to the approach bridge simulation model, and set the first elevation of each control point bent; Determine the second bent distance of the non-control-point bents between adjacent control-point bents according to the first bent distance; Calculate each of the second bent distances one by one according to the first elevation and two-dimensional coordinates of the control-point bents to obtain the second elevation of each non-control-point bent; Obtain the three-dimensional coordinates of each bent according to the two-dimensional coordinates and the second elevation of the non-control-point bents, and the two-dimensional coordinates and the first elevation of each control-point bent.

[0011] In a possible implementation manner, the approach bridge simulation model further includes a plurality of hollow slabs; the preset cross-section data includes the middle-section width and the average width of the plurality of hollow slabs on the middle section; calculating the slope of the three-dimensional coordinates according to the preset cross-section data corresponding to the middle section to obtain the height of the bearing pad on each bent of the middle section, including: Set the height arrangement mode of the plurality of bearing pads on each bent of the approach bridge simulation model; Determine the lateral slope of the approach bridge according to the height arrangement mode; Obtain the number of the hollow slabs and the actual width of each hollow slab according to the middle-section width and the average width of the hollow slabs; Determine the height and height calculation formula of the first bearing pad according to the lateral slope of the approach bridge and the height arrangement mode; the first bearing pad is the bearing pad with the maximum height; Calculate the height of each other bearing pad one by one according to the height calculation formula, the height of the first bearing pad and the actual width to obtain the height of each bearing pad.

[0012] In a possible implementation manner, the constructing a three-way variable approach bridge model according to the height of the bearing pads and the three-dimensional coordinates of each bent includes: Determine the longitudinal slope of each bent according to the difference in the ordinate of the adjacent control-point bents; Construct a three-way variable approach bridge model according to the preset component layout rules, the longitudinal slope, the height arrangement mode, the height of each bearing pad, the approach bridge axis, and the three-dimensional coordinates; the preset component layout rules are that the surface layer covers the surface of the approach bridge according to the longitudinal slope, the hollow slabs are located below the surface layer according to the longitudinal slope, the starting coordinates and the ending coordinates of the hollow slabs are the three-dimensional coordinates of two bents respectively, each bent is provided with a cross beam, the coordinates of the cross beam are the center point coordinates of the bent, the direction is perpendicular to the approach bridge axis, and the bearing pads are installed between the hollow slabs and the cross beam according to the height arrangement mode and the height of each bearing pad.

[0013] In a second aspect, the present invention further provides a device for constructing a three-way variable approach bridge model, including: An axis determination module, configured to determine the approach bridge axis according to the approach bridge simulation model; the approach bridge simulation model includes a plurality of bent caps; the approach bridge simulation model is divided into a wharf-side bell mouth, a middle section, and a shore-side bell mouth; A coordinate determination module, configured to calculate the coordinates of the plurality of bent caps on the approach bridge simulation model according to the approach bridge axis, so as to obtain the three-dimensional coordinates of each bent cap; A height calculation module, configured to calculate the slope of the three-dimensional coordinates according to the preset cross-section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth respectively, so as to obtain the height of the bearing pad stone on each bent cap; A model optimization module, configured to construct a three-way variable approach bridge model according to the height of the bearing pad stone and the three-dimensional coordinates of each bent cap.

[0014] In a third aspect, an embodiment of the present invention discloses an electronic device, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor, where when the computer program is executed by the processor, each step of the above-mentioned method embodiment for constructing a three-way variable approach bridge model is implemented.

[0015] In a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each step of the above-mentioned method embodiment for constructing a three-way variable approach bridge model is implemented.

[0016] The beneficial effects of the present invention are as follows: The three-dimensional coordinates of each bent cap can be obtained by calculating the coordinates of the plurality of bent caps on the approach bridge simulation model through the approach bridge axis, so that the changes in the plane and elevation of the approach bridge can be determined; the slope of the three-dimensional coordinates can be calculated respectively according to the preset cross-section data corresponding to the wharf-side bell mouth, the middle section, and the shore-side bell mouth, so as to obtain the height of the bearing pad stone on each bent cap, thereby the changes in the cross-section of the approach bridge can be determined; the approach bridge simulation model can be optimized according to the height of the bearing pad stone and the three-dimensional coordinates of each bent cap, so that a three-way variable approach bridge model can be constructed according to the changes in the plane, elevation, and cross-section of the approach bridge, realizing rapid and accurate parameter adjustment for the three-way variable special-shaped approach bridge, eliminating the need for manual parameter adjustment, and saving a large amount of human resources and costs. Description of the Drawings

[0017] Figure 1 It is a schematic flowchart of an embodiment of the method for constructing a three-way variable approach bridge model provided by the present invention; Figure 2 It is a schematic structural diagram of an embodiment of the approach bridge simulation model provided by the present invention; Figure 3 It is a schematic structural diagram of an embodiment of the bent cap model provided by the present invention Figure 4For the present invention Figure 1 Schematic diagram of an embodiment of step S102 in the present invention; Figure 5 Schematic diagram of coordinates of an embodiment of the right - hand coordinate system of the approach - bridge simulation model provided by the present invention; Figure 6 For the present invention Figure 4 Schematic diagram of an embodiment of step S403 in the present invention; Figure 7 Schematic diagram of the structure of an embodiment of the overall approach - bridge model provided by the present invention; Figure 8 Schematic diagram of the structure of an embodiment of the main components of the approach - bridge modeling provided by the present invention; Figure 9 Schematic diagram of the structure of an embodiment of the three - way variable approach - bridge model construction device provided by the present invention; Figure 10 Schematic diagram of the structure of an embodiment of the electronic device provided by the present invention. Specific embodiments

[0018] The following will specifically describe the preferred embodiments of the present invention in conjunction with the accompanying drawings. Among them, the accompanying drawings form a part of this application and are used together with the embodiments of the present invention to explain the principle of the present invention, rather than to limit the scope of the present invention.

[0019] As Figure 1 shown, a specific embodiment of the present invention discloses a method for constructing a three - way variable approach - bridge model, including: S101. Determine the approach - bridge axis according to the approach - bridge simulation model; the approach - bridge simulation model includes a plurality of bent frames; the approach - bridge simulation model is divided into a dock - side bell - mouth, an intermediate section, and a shore - side bell - mouth.

[0020] The method for constructing a three - way variable approach - bridge model provided by the embodiments of the present application can be applied to an approach - bridge model construction system. Among them, the construction of the three - way variable approach - bridge model can be based on a software system running on a terminal device. The terminal device can be a server, a tablet computer, an augmented reality (AR) / virtual reality (VR) device, a notebook computer, an ultra - mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a mobile phone, etc. The embodiments of the present application do not impose any restrictions on the specific type of the terminal device.

[0021] Among them, the approach - bridge simulation model can be a model obtained by simulating the approach - bridge through simulation software. The approach - bridge simulation model is as Figure 2As shown in the figure, the approach bridge simulation model can be divided into the dock-side bell mouth, the middle section, and the shore-side bell mouth. The approach bridge simulation model can include multiple bent caps and multiple hollow slabs. The hollow slabs can be installed between two adjacent bent caps. The bent cap is as shown in Figure 3 As shown, the bent cap is composed of a cross beam and a pile foundation. The center line of the approach bridge simulation model is the approach bridge axis. The pile foundation is located below the cross beam and penetrates into the geology to support the entire bridge. By default, each bent cap is supported by 4 pile foundations, and their arrangement direction is perpendicular to the approach bridge axis. The specific number of pile foundations for each bent cap can be set according to the actual situation, and the embodiments of the present invention do not limit this here.

[0022] S102. Calculate the coordinates of multiple bent caps on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent cap.

[0023] Among them, in order to obtain the changes in the plane and elevation of the approach bridge, after determining the approach bridge axis, the coordinates of each bent cap on the approach bridge simulation model can be calculated. Specifically, the center point of the cross beam of each bent cap can be calculated to obtain the three-dimensional coordinates of each bent cap. Among them, the abscissa and ordinate of the bent cap can determine the changes in the plane of the approach bridge, and the ordinate and vertical coordinate of the bent cap can determine the changes in the elevation of the approach bridge.

[0024] S103. Calculate the slope of the three-dimensional coordinates according to the preset cross-section data corresponding to the dock-side bell mouth, the middle section, and the shore-side bell mouth respectively to obtain the height of the bearing pad stone on each bent cap.

[0025] Among them, on the approach bridge simulation model, the preset cross-section data of the dock-side bell mouth, the middle section, and the shore-side bell mouth can be set respectively. For example, the preset cross-section data of the dock-side bell mouth can include data such as the width of the dock-side bell mouth and the average width of the hollow slabs on the dock-side bell mouth. The preset cross-section data of the middle section can include data such as the width of the middle section and the average width of the hollow slabs on the middle section. The preset cross-section data of the shore-side bell mouth can include data such as the width of the shore-side bell mouth and the average width of the hollow slabs on the shore-side bell mouth. Thus, the slope of the three-dimensional coordinates of the corresponding bent caps can be calculated according to the corresponding preset cross-section data respectively. When the calculations of all the bent caps of the dock-side bell mouth, the middle section, and the shore-side bell mouth are completed, the height of the bearing pad stone on each bent cap can be obtained. For example, the slope of the three-dimensional coordinates of the bent caps can be calculated according to the data such as the width of the dock-side bell mouth and the average width of the hollow slabs on the dock-side bell mouth, and the height of the bearing pad stone on each bent cap belonging to the dock-side bell mouth can be obtained. The same applies to the middle section and the shore-side bell mouth. Furthermore, the height of the bearing pad stone on each bent cap on the approach bridge simulation model can be obtained, so as to determine the changes in the cross-section of the approach bridge.

[0026] S104. Construct a three-way variable approach bridge model based on the height of the bearing padstone and the three-dimensional coordinates of each bent.

[0027] Among them, after obtaining the changes in the plan, elevation, and cross-section of the approach bridge, corresponding adjustment parameters can be obtained according to the corresponding changes. Specifically, a three-way variable approach bridge model can be constructed based on the height of the bearing padstone and the three-dimensional coordinates of each bent. For example, the three-way variable approach bridge model can include a surface layer, hollow slabs, cross beams, and bearing padstones. Thus, the surface layer, hollow slabs, cross beams, and bearing padstones can be installed according to the height of the bearing padstone and the three-dimensional coordinates of each bent to construct a three-way variable approach bridge model. The specific installation method can be set according to the actual situation. Among them, the components participating in the three-way approach bridge modeling in the simulation software can also include bearings, columns, bracing struts, curb guards, railings, ground beams, bracing struts, etc. Their layout data can all be calculated based on the data obtained from S101 - S104. Based on the rapid layout of the data, the specific calculation process can be set according to the actual situation, and the embodiments of the present invention do not limit it here.

[0028] Compared with the prior art, in this embodiment, the three-dimensional coordinates of each bent can be obtained by calculating the coordinates of multiple bents of the approach bridge simulation model through the approach bridge axis, so as to determine the changes in the plan and elevation of the approach bridge; the slope of the three-dimensional coordinates can also be calculated respectively according to the preset cross-section data corresponding to the dock-side bell mouth, the middle section, and the shore-side bell mouth to obtain the height of the bearing padstone on each bent, 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 bearing padstone and the three-dimensional coordinates of each bent, so as to construct a three-way variable approach bridge model according to the changes in the plan, elevation, and cross-section of the approach bridge, realizing rapid and accurate parameter adjustment for the three-way variable special-shaped approach bridge without manual parameter adjustment, saving a large amount of human resources and costs.

[0029] In some embodiments of the present invention, as Figure 4 shown, step S102 includes: S401. Determine the starting point of the approach bridge axis at the dock-side bell mouth as the approach bridge model base point; S402. Construct a right-handed 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 horizontal axis in the right-handed coordinate system; S403. Calculate the coordinates of multiple bents on the approach bridge simulation model according to the approach bridge angle to obtain the three-dimensional coordinates of each bent.

[0030] In a specific embodiment of the present invention, as Figure 5 shown, Figure 5For the right - hand coordinate system diagram of the approach bridge simulation model, the starting point of the approach bridge axis at the trumpet - shaped opening on the wharf side can be determined as the base point of the approach bridge model. Then, taking the base point of the approach bridge model as the origin, a right - hand coordinate system is constructed. The positive X - direction is horizontally to the right, the Y - direction is vertically upward along the X - axis, and the Z - direction is the elevation of the approach bridge. Thus, the angle between the approach bridge axis and the horizontal direction of the transverse axis, that is, the approach bridge angle, can be determined. θ , and then the coordinate calculation of each bent on the approach bridge simulation model can be carried out through the approach bridge angle, and the three - dimensional coordinates of each bent can be obtained. Among them, because the situations of the trumpet - shaped opening on the wharf side, the middle section, and the trumpet - shaped opening on the shore side are different, the processing methods can also be different. The specific processing process can be to determine the vector corresponding to the approach bridge angle according to different directions, and then obtain the three - dimensional coordinates of the corresponding bents on each module according to the corresponding vector and the corresponding preset section data or other data. Specifically, it can be set according to the actual situation, and the embodiments of the present invention do not limit this here.

[0031] In some embodiments of the present invention, as Figure 6 shown, step S403 includes: S601. Determine the first bent distance between adjacent bents among multiple bents according to the approach bridge simulation model.

[0032] In the specific embodiments of the present invention, the preset reference point coordinates can be set. For example, the preset reference point coordinates can be the central coordinates of the edge line of the trumpet - shaped opening on the wharf side close to the platform side, or the coordinates of other positions. Specifically, it can be set according to the actual situation, and the embodiments of the present invention do not limit this here. The first bent distance between adjacent bents among multiple bents can also be determined according to the distance between adjacent bents set in the approach bridge simulation model. .

[0033] S602. Obtain the two - dimensional coordinates of each bent according to the preset reference point coordinates, the approach bridge angle, and the first bent distance; S603. Obtain the three - dimensional coordinates of each bent according to the two - dimensional coordinates and the elevation of each bent on the approach bridge simulation model.

[0034] In the specific embodiments of the present invention, the two - dimensional coordinates of each bent can be calculated according to the preset reference point coordinates, the approach bridge angle, and the first bent distance. Then, corresponding calculations can be carried out according to the two - dimensional coordinates of each bent and the elevation of each bent on the approach bridge simulation model to obtain the three - dimensional coordinates of each bent.

[0035] In some embodiments of the present invention, step S602 includes: Calculate the first bent distance of each bent on the trumpet - shaped opening on the wharf side one by one according to the preset reference point coordinates to obtain the two - dimensional coordinates of each bent; In a specific embodiment of the present invention, the two-dimensional coordinates of the center of each bent are represented as , and the preset reference point coordinates are represented as P 0 . Since the bents at the dock-side flare are parallel to the horizontal line, the two-dimensional coordinates P i of each bent on the dock-side flare are calculated as shown in formula (1): (1) In the formula, d i represents the first bent distance between the i th bent and the i-1 th bent; P i is the two-dimensional coordinate of the i th bent; s is the bent number on the dock-side flare.

[0036] Determine the direction vector column vector according to the directions of the middle section and the shore-side flare on the right-handed coordinate system and the approach bridge angle; Calculate the first bent distance of each bent on the middle section and the shore-side flare one by one according to the preset reference point coordinates and the direction vector column vector, and obtain the two-dimensional coordinates of each bent.

[0037] In a specific embodiment of the present invention, since the bent centers of the middle section to the shore-side flare of the approach bridge are arranged along the axial direction, the direction vector column vector can be calculated according to the approach bridge angle, as shown in formula (2): (2) In the formula, θ is the approach bridge angle between the approach bridge axis and the horizontal direction, cos θ is the direction vector column vector used when calculating the coordinates of the x axis, sinθ is the direction vector column vector used when calculating the coordinates of the y axis. The bent centers of the middle section to the shore-side flare of the approach bridge are arranged along the axial direction, so the two-dimensional coordinates P i of each bent on the middle section to the shore-side flare are calculated as shown in formula (3): (3) In the formula, s is the bent number between the middle section and the shore-side flare of the approach bridge; n is the quantity in the first bent distance .

[0038] In some embodiments of the present invention, step S603 includes: According to the approach bridge simulation model, determine multiple control point bent caps and set the first elevation of each control point bent cap; In a specific embodiment of the present invention, as Figure 7 shown, Figure 7 in which 1-13 are bent caps, and the hollow slabs are between adjacent bent caps. The special bent caps on the approach bridge simulation model can be determined as control point bent caps. For example, Figure 7 bent caps 1, 3, 7, 11, 13 in it. These bent caps can be starting bent caps, or bent caps at the turning points, or bent caps with the largest changes. The control point bent caps can be determined manually, and the corresponding first elevation can also be set according to the actual situation of each control point bent cap. The specific setting process and size can be set according to the actual situation, and the embodiments of the present invention are not limited thereto. After determining multiple control point bent caps, the remaining bent caps on the approach bridge simulation model are non-control point bent caps. For example, Figure 7 bent caps 2, 4, 5, 6, 8, 9, 10, 12 in it.

[0039] According to the first bent cap distance, determine the second bent cap distance of the non-control point bent caps between adjacent control point bent caps; According to the first elevation and two-dimensional coordinates of the control point bent caps, calculate the second bent cap distance one by one to obtain the second elevation of each non-control point bent cap; In a specific embodiment of the present invention, denote two control point bent caps as and , assuming that there are no other control point bent caps between the two control point bent caps, but there are a certain number of non-control point bent caps, denoted as in formula (4): (4) wherein, y has been obtained in the above calculation of two-dimensional coordinates, and the first elevation of the control point bent cap is manually input, that is, z. From the control point bent cap to the control point bent cap , the second bent cap distance between adjacent bent caps, for example, for control point bent caps 3 and 7, the non-control point bent caps in the middle are 4, 5, 6, represents the distance between adjacent bent caps, then the second elevation of each non-control point bent cap is calculated as shown in formula (5): (5) In the formula, and are the first elevations of the control point bent caps and the control point bent cap respectively; and are the control point bent caps and the bent frames of control points of y axial coordinates; For the three-dimensional coordinates of the bent frames of control points when calculating the second elevation, is the z coordinate value in the three-dimensional coordinates.

[0040] According to the two-dimensional coordinates and the second elevation of the non-control-point bent frames, as well as the two-dimensional coordinates and the first elevation of each control-point bent frame, the three-dimensional coordinates of each bent frame are obtained.

[0041] In a specific embodiment of the present invention, the three-dimensional coordinates of each control-point bent frame can be obtained according to the two-dimensional coordinates and the first elevation of each control-point bent frame, with the first elevation as the z-axis coordinate. Similarly, the three-dimensional coordinates of each non-control-point bent frame can be obtained according to the two-dimensional coordinates and the second elevation of each non-control-point bent frame, with the second elevation as the z-axis coordinate.

[0042] In some embodiments of the present invention, the approach bridge simulation model further includes a plurality of hollow slabs; the preset cross-section data includes the width of the middle section and the average width of a plurality of hollow slabs on the middle section; the step of step S103 calculates the slope of the three-dimensional coordinates according to the preset cross-section data corresponding to the middle section to obtain the height of the bearing stones on each bent frame of the middle section, including: Set the height arrangement mode of a plurality of bearing stones on each bent frame of the approach bridge simulation model; Determine the lateral slope of the approach bridge according to the height arrangement mode; In a specific embodiment of the present invention, the height arrangement mode of a plurality of bearing stones on each bent frame of the approach bridge simulation model can be set according to the actual situation. The height arrangement mode can be that the height gradually decreases, the height gradually increases, first increases and then decreases, etc. The height arrangement modes of each bent frame can be the same or different, and different settings can be made according to different positions. Thus, the corresponding lateral slope of the approach bridge can be determined according to different height arrangement modes, where the lateral slope of the approach bridge can be limited between 0 and 10°.

[0043] Obtain the number of 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 bearing stone according to the lateral slope of the approach bridge and the height arrangement mode; the first bearing stone is the bearing stone with the maximum height; Calculate the height of each other bearing stone one by one according to the height calculation formula for the height and actual width of the first bearing stone to obtain the height of each bearing stone.

[0044] In a specific embodiment of the present invention, the width of the middle section and the average width of the hollow slabs are used to calculate the number of hollow slabs (wherein is the floor function symbol), and the actual width of each hollow slab , where , i is expressed as the i th hollow slab. The specific calculation process can be set according to the actual situation, and the embodiments of the present invention are not limited thereto. 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 modification, the calculated number of hollow slabs 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 cushion stone can be determined according to different height arrangement methods and the transverse slope of the approach bridge. For example, in the case of a leftward transverse slope, the cushion stone with the largest height on the leftmost side can be determined as the first cushion stone, and the height can be defaulted to 79 mm. Then, the height calculation formula for the other cushion stones after the first cushion stone is shown in formula (6): (6) In the formula, is the height of the cushion stone i ; is the height of the cushion stone i-1 ; is the actual width of the cushion stone i; is the cushion stone i-1 's actual width; is the transverse slope of the approach bridge.

[0045] In the case of a rightward transverse slope, the cushion stone with the largest height on the rightmost side, that is, the last cushion stone, is the first cushion stone, and the height is defaulted to 79 mm. Then, the height calculation formula for the other cushion stones before the last cushion stone is shown in formula (7): (7) In the formula, is the height of the cushion stone i-1 ; is the actual width of the cushion stone i-1 .

[0046] For the case of a two-way transverse slope, the height of the first cushion stone , the height of the last cushion stone is defaulted to 79 mm. Then, the height calculation formula for the first half of the cushion stones is shown in formula (8): (8) The height calculation formula for the second half of the cushion stones is shown in formula (9): (9) Then, the height of each cushion stone on each bent can be calculated through the above formula.

[0047] In some embodiments of the present invention, step S104 includes: Determine the longitudinal slope of each bent according to the difference in the vertical coordinates of adjacent control point bents; In a specific embodiment of the present invention, in order to more accurately optimize the approach bridge simulation model, it is also necessary to determine the longitudinal slope of each bent according to the difference in the vertical coordinates of adjacent control point bents on the approach bridge simulation model. For example, for adjacent control point bents 1 and 3, the difference in the y-axis of adjacent control point bents 1 and 3 is the longitudinal slope of bents 1, 2, and 3, and the same applies to others. The embodiments of the present invention will not be elaborated herein, and then the longitudinal slope of each bent can be obtained.

[0048] Construct a three-way variable approach bridge model according to the preset component layout rules, longitudinal slope, height arrangement method, height of each bearing pad, approach bridge axis, and three-dimensional coordinates; the preset component layout rules are 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 starting coordinates and ending coordinates of the hollow slab are the three-dimensional coordinates of two bents respectively, each bent is provided with a cross beam, the coordinates of the cross beam are the center point coordinates of the bent, and the direction is perpendicular to the approach bridge axis, and the bearing pads are installed between the hollow slab and the cross beam according to the height arrangement method and the height of each bearing pad.

[0049] In a specific embodiment of the present invention, as Figure 8 shown, the main components of the approach bridge modeling include the surface layer, hollow slab, cross beam, bearing pad, and pile foundation. The hollow slab includes a middle hollow slab and side hollow slabs.

[0050] The specific content of the preset component layout rules can be: Surface layer layout: The surface layer can cover the surface of the approach bridge according to the longitudinal slope. The default thickness can be 15 mm. One surface layer is placed between every two adjacent control point bents, and its starting and ending coordinates are the three-dimensional coordinates of two bents respectively, and the elevation is the same as the elevation of the bent.

[0051] Hollow slab layout: Based on the longitudinal slope, the hollow slab is installed below the surface layer to support the surface layer and traffic load. The default thickness can be 900 mm. The hollow slab is placed between two adjacent bents, and its starting and ending coordinates are the three-dimensional coordinates of two bents, and the elevation is the elevation of the bent minus the thickness of the surface layer.

[0052] Cross beam layout: The cross beam is located at the center of the bent. Each bent is provided with a cross beam. The coordinates of the cross beam are the center point of the bent, and the direction is perpendicular to the approach bridge axis. After placement, the cross beam needs to be rotated, and the rotation angle is θ - 90°, where θ is the angle of the approach bridge axis in the above process.

[0053] Arrangement of bearing pads: The bearing pads can be installed between the hollow slabs and the cross beams according to the height arrangement method and the height of each bearing pad. Each bent has two columns of bearing pads, which are distributed on both sides of the cross beam. The height and arrangement method of the bearing pads are determined according to the calculations in the above process.

[0054] Arrangement of pile foundations: The pile foundations are located below the cross beams and penetrate into the geology to support the entire bridge. By default, each bent is supported by 4 pile foundations, and their arrangement direction is perpendicular to the axis of the approach bridge.

[0055] In addition, the components involved in the approach bridge modeling in the software also include bearings, columns, bracing struts, curb guards, railings, ground beams, bracing struts, etc. Their arrangement data can all be deduced based on the above calculation process for rapid arrangement based on the data.

[0056] The embodiment of the present invention adopts a forward design process for model data calculation and model construction, reducing the difficulty of approach bridge design and improving the overall efficiency and accuracy of approach bridge design. In the XY plane, the included angle between the approach bridge axis and the rear line of the wharf can be directly set, as well as the included angles of the flare and the shore connection section; in the YZ plane, the longitudinal variation is designed by the interpolation method; in the XZ plane, the transverse slope is designed by adjusting the height of the bearing pads. Through a simple parametric input method, the efficient setting of the three-dimensional design parameters of any approach bridge is realized, reducing a large number of repetitive operations in interactive modeling.

[0057] To better implement the method for constructing a three-way variable approach bridge model in the embodiment of the present invention, correspondingly, based on the method for constructing a three-way variable approach bridge model, the embodiment of the present invention also provides a device for constructing a three-way variable approach bridge model, as Figure 9 shown. The device 900 for constructing a three-way variable approach bridge model includes: An axis determination module 901, configured to 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 flare, an intermediate section, and a shore-side flare; A coordinate determination module 902, configured to perform coordinate calculations on 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 903, configured to perform slope calculations on the three-dimensional coordinates respectively according to the preset section data corresponding to the wharf-side flare, the intermediate section, and the shore-side flare to obtain the height of the bearing pads on each bent; A model optimization module 904, configured to construct a three-way variable approach bridge model according to the height of the bearing pads and the three-dimensional coordinates of each bent.

[0058] The three-way variable approach bridge model construction device 900 provided in the above embodiments can implement the technical solutions described in the embodiments of the three-way variable approach bridge model construction method. The specific implementation principles of the above modules or units can be referred to the corresponding content in the embodiments of the three-way variable approach bridge model construction method, which will not be elaborated here.

[0059] As Figure 10 shown, the present invention also correspondingly provides an electronic device 1000. The electronic device 1000 includes a processor 1001, a memory 1002, and a display 1003. Figure 10 Only some components of the electronic device 1000 are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be alternatively implemented.

[0060] In some embodiments, the memory 1002 may be an internal storage unit of the electronic device 1000, such as the 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 equipped on the electronic device 1000, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc.

[0061] Furthermore, the memory 1002 may also include both the internal storage unit and the external storage device of the electronic device 1000. The memory 1002 is used to store the application software installed in the electronic device 1000 and various types of data.

[0062] In some embodiments, the processor 1001 may be a Central Processing Unit (CPU), a microprocessor, or other data processing chips, and is used to run the program code stored in the memory 1002 or process data, such as the three-way variable approach bridge model construction method in the present invention.

[0063] In some embodiments, the display 1003 may be an LED display, a liquid crystal display, a touch liquid crystal display, and an OLED (Organic Light-Emitting Diode) toucher, etc. The display 1003 is used to display the information of the electronic device 1000 and to display a visual user interface. The components 1001 - 1003 of the electronic device 1000 communicate with each other through a system bus.

[0064] In some embodiments of the present invention, when the processor 1001 executes the three-way variable approach bridge model construction program in the memory 1002, the following steps can be implemented: According to the approach bridge simulation model, determine the axis of the approach bridge; the approach bridge simulation model includes multiple bent caps; the approach bridge simulation model is divided into a dock-side bell mouth, an intermediate section, and a shore-side bell mouth; Perform coordinate calculations on the multiple bent caps on the approach bridge simulation model according to the axis of the approach bridge to obtain the three-dimensional coordinates of each bent cap; Perform slope calculations on the three-dimensional coordinates respectively according to the preset cross-section data corresponding to the dock-side bell mouth, the intermediate section, and the shore-side bell mouth to obtain the height of the bearing stones on each bent cap; Construct a three-way variable approach bridge model according to the height of the bearing stones and the three-dimensional coordinates of each bent cap.

[0065] It should be understood that when the processor 1001 executes the three-way variable approach bridge model construction program in the memory 1002, in addition to the above functions, other functions can also be realized. For specific details, reference can be made to the description of the corresponding method embodiments above.

[0066] Furthermore, the type of the electronic device 1000 mentioned in the embodiments of the present invention is not specifically limited. The electronic device 1000 can be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of the portable electronic device include, but are not limited to, portable electronic devices running IOS, android, microsoft, or other operating systems. The above portable electronic devices can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (such as a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 1000 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

[0067] Correspondingly, an embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium is used to store computer-readable programs or instructions. When the programs or instructions are executed by a processor, the method steps or functions for constructing the three-way variable approach bridge model provided in the above method embodiments can be realized.

[0068] Those skilled in the art can understand that all or part of the processes for implementing the methods in the above embodiments can be completed by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program. The computer program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory, or a random access memory, etc.

[0069] The above has introduced in detail a method, device, equipment and storage medium for constructing a three-way variable approach bridge model provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for constructing a three-way variable approach bridge model, characterized in that: include: Determine the approach bridge axis according to the approach bridge simulation model; The approach bridge simulation model includes a plurality of bent frames; the approach bridge simulation model is divided into a bell mouth on the wharf side, a middle section and a bell mouth on the shore side; Calculating the coordinates of the multiple bent frames on the bridge approach simulation model according to the bridge approach axis to obtain the three-dimensional coordinates of each bent frame; The slope of the three-dimensional coordinates is calculated according to the preset section data corresponding to the bell mouth at the wharf side, the middle section and the bell mouth at the shore side, respectively, to obtain the height of the pad stone on each bent frame; A three-way variable approach bridge model is constructed according to the height of the cushion stone and the three-dimensional coordinates of each bent frame.

2. The method for constructing a three-way variable approach bridge model according to claim 1, characterized in that: The step of calculating the coordinates of the plurality of bent frames on the bridge approach simulation model according to the bridge approach axis to obtain the three-dimensional coordinates of each bent frame includes: Determine the starting point of the approach bridge axis at the bell 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; The coordinates of the multiple bent frames on the bridge approach simulation model are calculated according to the bridge approach angle to obtain the three-dimensional coordinates of each bent frame.

3. The method for constructing a three-way variable approach bridge model according to claim 2, characterized in that: The step of calculating the coordinates of the plurality of bent frames on the bridge approach simulation model according to the bridge approach angle to obtain the three-dimensional coordinates of each bent frame includes: Determining a first rack distance between adjacent racks among the plurality of racks according to the approach bridge 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 frame are obtained according to the two-dimensional coordinates and the elevation of each bent frame on the approach bridge simulation model.

4. The method for constructing a three-way variable approach bridge model according to claim 3, 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 comprises: Calculating the first rack distance of each rack on the bell mouth at the dock side one by one according to the preset reference point coordinates to obtain the two-dimensional coordinates of each rack; 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 approach bridge; 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.

5. The method for constructing a three-way variable approach bridge model according to claim 3, 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: According to the approach bridge simulation model, a plurality of control point racks are determined, and a first elevation of each control point rack is set; Determine a second rack row distance of non-control point racks between adjacent control point rack rows according to the first rack row distance; Calculate the distances of the second racks one by one according to the first elevation and the two-dimensional coordinates of the control point racks to obtain the second elevation 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.

6. The method for constructing a three-way variable approach bridge model according to claim 5, characterized in that: The approach bridge simulation model also includes a plurality of hollow slabs; the preset section data includes the width of the middle section and the average width of the plurality of hollow slabs on the middle section; The slope of the three-dimensional coordinates is calculated according to the preset section data corresponding to the middle section to obtain the height of the pad stone on each rack of the middle section, including: Setting the height arrangement of multiple cushion stones of each bent frame on the approach bridge simulation model; Determine the transverse slope of the approach bridge according to the height arrangement; According to the middle section width and the average width of the hollow slabs, the number of the hollow slabs and the actual width of each hollow slab are obtained; According to the transverse slope of the approach bridge and the height arrangement mode, the height and height calculation formula of the first pad stone are determined; the first pad stone is the pad stone with the largest height; The height of the first pad stone and the actual width are calculated for the other pad stones one by one according to the height calculation formula to obtain the height of each pad stone.

7. The method for constructing a three-way variable approach bridge model according to claim 6, characterized in that: The three-way variable bridge approach model is constructed according to the height of the pad stone and the three-dimensional coordinates of each bent frame, including: Determining the longitudinal slope of each bent frame according to the difference in the longitudinal coordinates of the bent frames at adjacent control points; 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.

8. 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 bent frames; the approach bridge simulation model is divided into a bell mouth on the wharf side, a middle section and a bell mouth on the shore side; A coordinate determination module, used for calculating the coordinates of the plurality of bent frames on the approach bridge simulation model according to the approach bridge axis to obtain the three-dimensional coordinates of each bent frame; A height calculation module, used 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, so as to obtain the height of the pad stone on each rack; The model optimization module is used to construct a three-way variable approach bridge model according to the height of the cushion stone and the three-dimensional coordinates of each bent frame.

9. 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 as described in any one of claims 1 to 7 are implemented.

10. 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 7 are implemented.

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