CN118134217B - BIM technology-based cable bridge construction management method and system - Google Patents
BIM technology-based cable bridge construction management method and system Download PDFInfo
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Abstract
The invention provides a cable bridge construction management method and system based on BIM technology, and relates to the field of data processing, wherein the method comprises the following steps: based on BIM technology, building a construction site three-dimensional model of a construction area, and determining various candidate cable wiring schemes; for each candidate cable routing scheme, determining a plurality of return bend positions based on the candidate cable routing scheme and a construction site three-dimensional model of a construction area, and generating a corresponding cable bridge routing scheme based on the plurality of return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and a constraint condition set; determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme; generating construction management information based on a target cable routing scheme and a target cable bridge routing scheme; the construction management information is based on the construction management information to manage the construction of the cable bridge, and the method has the advantages of improving the construction quality and efficiency of the cable bridge.
Description
Technical Field
The invention relates to the field of data processing, in particular to a cable bridge construction management method and system based on BIM technology.
Background
In the electrical design profession, the routing network design of cables, wires, bridges, trunking and the like occupies the main workload, is taken as two major key projects of professional design of equipment simultaneously with equipment selection, and is also the path reaction of an electrical system in the actual construction process, and the cables and the wires are usually protected by the bridges and the trunking and are arranged in the cables and the trunking, so that the carriers for the design and the construction of the wires are also mainly the bridges and the trunking. With the development of the era, project construction has higher requirements on bridge design with the largest occupied space of the electrical profession, and under the application of a building information model (Building Information Modeling, BIM) technology, the electrical design is gradually changed into three dimensions.
The cable construction is closely related to other fields such as water supply and drainage, fire protection, heating ventilation and the like in equipment installation engineering, and the situation that various pipelines need to be avoided or the pipeline is bent along with the structure is often encountered. In the prior art, the conflict management between pipelines and other building elements is mainly carried out by relying on experience of constructors, the efficiency is low, and the construction quality is unstable.
Therefore, it is necessary to provide a method and a system for managing cable bridge construction based on the BIM technology, which are used for managing cable bridge construction and improving the quality and efficiency of cable bridge construction.
Disclosure of Invention
The invention provides a cable bridge construction management method based on BIM technology, comprising the following steps: building a construction site three-dimensional model of a construction area based on a BIM technology; determining a plurality of candidate cable wiring schemes based on a construction site three-dimensional model of the construction area; for each candidate cable routing scheme, determining a plurality of return bend positions based on the candidate cable routing scheme and a construction site three-dimensional model of the construction area, and generating a cable bridge routing scheme corresponding to the candidate cable routing scheme based on the plurality of return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and a constraint condition set; determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme; generating construction management information based on the target cable routing scheme and the target cable bridge routing scheme; and managing the construction of the cable bridge based on the construction management information.
Further, determining a plurality of candidate cabling schemes based on a construction site three-dimensional model of the construction area, comprising: and determining the plurality of candidate cable wiring schemes based on the electrical connection relation among the plurality of devices in the construction area and the construction site three-dimensional model of the construction area, wherein the candidate cable wiring schemes comprise wiring positions and cable parameters of cables between any two devices, and the cable parameters at least comprise model specifications, outer diameters and sectional areas.
Further, the constraint condition set at least comprises a bridge thickness constraint, parallel clear distance constraints corresponding to different types of pipelines, cross clear distance constraints corresponding to different types of pipelines and bending angle constraints corresponding to cables with different parameters.
Further, generating a cable bridge routing scheme corresponding to the candidate cable routing scheme based on the plurality of return bend positions, the candidate cable routing scheme, and a construction site three-dimensional model and a constraint condition set of the construction area, including: determining a multi-section straight-line bridge according to the candidate cable wiring scheme, the construction site three-dimensional model of the construction area and the constraint condition set; for each straight-line bridge, determining cable parameters of each section of cable in the straight-line bridge according to the candidate cable wiring scheme and a construction site three-dimensional model of the construction area, and determining straight-line bridge parameters of the straight-line bridge according to the cable parameters of each section of cable in the straight-line bridge and the constraint condition set, wherein the straight-line bridge parameters of the straight-line bridge at least comprise straight-line bridge length, straight-line bridge plate thickness and straight-line bridge width; for each return bending position, determining bending section bridge parameters of the bending section bridge corresponding to the return bending position based on straight line section bridge parameters of straight line section bridges at two ends of the return bending position, a construction site three-dimensional model of a construction area and the constraint condition set, wherein the bending section bridge parameters at least comprise bending angle of the bending section bridge, thickness of a bending section bridge plate and width of the bending section bridge.
Further, determining a target cable routing scheme and a target cable tray routing scheme according to the cable tray routing schemes corresponding to each candidate cable routing scheme, including: determining a total cabling length for each of the candidate cabling schemes; determining the total length of the straight-line bridge layout based on the cable bridge layout scheme corresponding to the candidate cable layout scheme; determining bending angles of the same cable at different bending positions based on cable bridge frame layout schemes corresponding to the candidate cable layout schemes, and determining cable angle change parameters based on the bending angles of the same cable at different bending positions; determining bending angle change parameters of the bending section bridge frame based on the bending angle of each bending section bridge frame included in the cable bridge frame layout scheme corresponding to the candidate cable layout scheme; acquiring construction environment information of the construction area, and determining the optimal bending angles corresponding to cables with different cable parameters based on the construction environment information of the construction area; for each bending section bridge, determining the angle matching degree corresponding to the bending section bridge based on the optimal bending angles corresponding to the cables with different cable parameters and the bending angles of the bending section bridge; and determining the target cable routing scheme and the target cable bridge routing scheme based on the total cable routing length of each candidate cable routing scheme, the total linear segment bridge routing length of the cable bridge routing scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending segment bridge bending angle change parameter and the angle matching degree corresponding to each bending segment bridge.
Further, determining an optimal bending angle corresponding to the cable of different cable parameters based on the construction environment information of the construction area comprises: determining correlation coefficients between a plurality of candidate construction factors and cable performance, and determining a plurality of target construction factors from the plurality of candidate construction factors; determining a plurality of sample construction environments based on the plurality of target construction factors; for each sample construction environment, acquiring performance test data of various sample cables under different bending angles; for each sample cable, establishing an angle prediction model corresponding to the sample cable, and training the angle prediction model corresponding to the sample cable based on performance test data of the sample cable under different bending angles; determining at least one target sample cable from the plurality of sample cables based on cable parameters of the cable, and determining a sample optimal bending angle of the target sample cable in construction environment information of the construction area based on construction environment information of the construction area through an angle prediction model corresponding to the target sample cable; and determining the corresponding optimal bending angle of the cable based on the optimal bending angle of the sample of the construction environment information of each target sample cable in the construction area.
Further, generating construction management information based on the target cable routing scheme and the target cable tray routing scheme includes: and generating an optimal construction flow based on the target cable routing scheme and the target cable bridge routing scheme, wherein the optimal construction flow comprises a plurality of construction nodes.
Further, generating construction management information based on the target cable routing scheme and the target cable tray routing scheme includes: and determining the optimal constructors and construction prompt information corresponding to each construction node.
Further, the bending section bridge comprises a first connecting groove box, a second connecting groove box, a top sealing plate and a bottom sealing plate, wherein the first connecting groove box is hinged to the second connecting groove box, a first fixing piece is arranged between the first connecting groove box and the second connecting groove box, one end of the top sealing plate is detachably connected with the top of the first connecting groove box, the other end of the top sealing plate is detachably connected with the top of the second connecting groove box, one end of the bottom sealing plate is detachably connected with the top of the first connecting groove box, and the other end of the bottom sealing plate is detachably connected with the top of the second connecting groove box.
The invention provides a cable bridge construction management system based on BIM technology, comprising: the model building module is used for building a construction site three-dimensional model of a construction area based on a BIM technology; the scheme generation module is used for determining a plurality of candidate cable wiring schemes based on a construction site three-dimensional model of the construction area; the scheme optimizing module is used for determining a plurality of return bend positions for each candidate cable routing scheme based on the candidate cable routing scheme and a construction site three-dimensional model of the construction area, and generating a cable bridge frame layout scheme corresponding to the candidate cable routing scheme based on the return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and a constraint condition set; the scheme screening module is used for determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme; and the construction supervision module is used for generating construction management information based on the target cable wiring scheme and the target cable bridge layout scheme and managing the cable bridge construction based on the construction management information.
Compared with the prior art, the cable bridge construction management method and system based on the BIM technology provided by the invention have the following beneficial effects:
1. The cable bridge construction is simulated and laid through the BIM technology, the cable bridge layout scheme is optimized, the construction site three-dimensional model of a construction area, cable layout information and bridge model specification are combined, the influence of standard specification requirements and the bending angle of a cable on the cable bridge layout is combined, a target cable layout scheme and a target cable bridge layout scheme are generated, the processes of manually calculating a bridge path and modeling are reduced, the automatic layout and layout optimization of the bridge of the whole building structure are completed, the automation degree of cable bridge construction management is improved, and the construction quality and efficiency of the cable bridge are improved.
2. Based on the total length of the cable wiring of each candidate cable wiring scheme, the total length of the straight-line section bridge layout of the cable bridge layout scheme corresponding to the candidate cable wiring scheme, the cable angle change parameter, the bending angle change parameter of the bending section bridge and the angle matching degree corresponding to each bending section bridge, the schemes are screened from a plurality of angles, and a target cable wiring scheme and a target cable bridge layout scheme with more excellent comprehensive performance are determined.
Drawings
The present specification will be further elucidated by way of example embodiments, which will be described in detail by means of the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein:
FIG. 1 is a flow diagram of a method for managing construction of a cable tray based on BIM technology according to some embodiments of the present disclosure;
FIG. 2 is a schematic flow diagram of determining a target cable routing scheme and a target cable tray routing scheme according to some embodiments of the present disclosure;
FIG. 3 is a flow chart illustrating determining the optimal bend angles for cables of different cable parameters according to some embodiments of the present disclosure;
FIG. 4 is a schematic view of a bending section bridge shown in some embodiments according to the present disclosure;
FIG. 5 is a partial cross-sectional view of a bending section bridge shown according to some embodiments of the present disclosure;
fig. 6 is a block diagram of a cable tray construction management system based on BIM technology according to some embodiments of the present disclosure.
In the figure, 510, a first connection box; 520. a second connecting groove box; 530. a top closure plate; 540. a bottom sealing plate; 550. a first fixing piece.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present specification, and it is possible for those of ordinary skill in the art to apply the present specification to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
Fig. 1 is a schematic flow chart of a cable bridge construction management method based on the BIM technology according to some embodiments of the present disclosure, and as shown in fig. 1, a cable bridge construction management method based on the BIM technology may include the following steps.
Step 110, building a construction site three-dimensional model of a construction area based on BIM technology.
By way of example only, a three-dimensional model of a construction site of a construction area may be built based on the following procedure:
s1, selecting BIM modeling software:
BIM modeling software such as Revit, archiCAD, etc. is selected.
S2, setting project base points and a coordinate system:
And setting a base point and a coordinate system of the project in BIM software, and ensuring the accuracy and consistency of the model.
S3, building element modeling:
According to the construction drawing and design requirements, each element of the building project, such as wall, column, beam, plate, door and window, etc. is respectively built.
The parameterization function of BIM software is utilized to ensure that the dimension, position and other attributes of the building elements are accurate.
S4, modeling equipment and pipelines:
And building professional equipment and pipeline models for water supply and drainage, electricity, heating and ventilation and the like according to design requirements.
Ensuring that the connection relation and the space layout between the equipment and the pipeline meet the design requirements.
S5, integration and collision detection:
And integrating professional models of buildings, equipment, pipelines and the like to form a construction site three-dimensional model of a complete construction area.
And the collision detection function of BIM software is utilized to check the space conflict among the professions, so that the accuracy and feasibility of the construction site three-dimensional model of the construction area are ensured.
Step 120, determining a plurality of candidate cabling schemes based on the construction site three-dimensional model of the construction area.
The method specifically comprises the following steps:
and determining a plurality of candidate cable wiring schemes based on the electrical connection relation among a plurality of devices in the construction area and the construction site three-dimensional model of the construction area, wherein the candidate cable wiring schemes comprise wiring positions and cable parameters of cables between any two devices, and the cable parameters at least comprise model specifications, outer diameters and sectional areas.
In the two different candidate cabling schemes, at least one cable is routed differently.
And 130, for each candidate cable routing scheme, determining a plurality of return bend positions based on the candidate cable routing scheme and the construction site three-dimensional model of the construction area, and generating a cable bridge layout scheme corresponding to the candidate cable routing scheme based on the plurality of return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and the constraint condition set.
In some embodiments, the set of constraints includes at least a bridge thickness constraint, a parallel clear distance constraint for different types of conduits, a cross clear distance constraint for different types of conduits, and a bend angle constraint for cables of different parameters.
For example only, the bridge thickness constraints may be as shown in table 1.
TABLE 1
| Bridge width (mm) | Allowing minimum thickness (mm) |
| <400 | 1.5 |
| 400~800 | 2.0 |
| >800 | 2.5 |
The parallel clear-distance constraints for different types of pipes and the cross clear-distance constraints for different types of pipes may be as shown in table 2.
TABLE 2
| Pipeline category | Parallel clear distance | Cross clear distance |
| General process pipeline | 0.4 | 0.3 |
| Inflammable and explosive gas pipeline | 0.5 | 0.5 |
| Heating pipeline (with heat preservation) | 0.5 | 0.3 |
| Heating pipeline (without insulating layer) | 1.0 | 0.5 |
The bend angle constraint corresponding to the cable may be a maximum bend angle that does not cause direct damage to the cable.
In some embodiments, generating a cable bridge lay-out scheme corresponding to a candidate cable routing scheme based on a plurality of return bend locations, a candidate cable routing scheme, and a construction site three-dimensional model and a set of constraints for a construction area, includes:
Determining a multi-section straight-line bridge according to the candidate cable wiring scheme, the construction site three-dimensional model of the construction area and the constraint condition set;
For each straight-line bridge, determining cable parameters of each section of cable in the straight-line bridge according to a candidate cable wiring scheme and a construction site three-dimensional model of a construction area, and determining straight-line bridge parameters of the straight-line bridge according to cable parameters and constraint condition sets of each section of cable in the straight-line bridge, wherein the straight-line bridge parameters of the straight-line bridge at least comprise a straight-line bridge length, a straight-line bridge plate thickness and a straight-line bridge width;
for each return bending position, determining bending section bridge parameters of the bending section bridge corresponding to the return bending position based on straight line section bridge parameters of straight line section bridges at two ends of the return bending position, a construction site three-dimensional model of a construction area and a constraint condition set, wherein the bending section bridge parameters at least comprise bending angle of the bending section bridge, thickness of a bending section bridge plate and width of the bending section bridge.
Fig. 4 is a schematic structural view of a bending bridge according to some embodiments of the present disclosure, and as shown in fig. 4, the bending bridge includes a first connection slot box 510, a second connection slot box 520, a top sealing plate 530, and a bottom sealing plate 540, where the first connection slot box 510 is hinged to the second connection slot box 520. Fig. 5 is a partial cross-sectional view of a bending bridge shown in some embodiments of the present disclosure, as shown in fig. 5, a first fixing member 550 is disposed between the first connection slot box 510 and the second connection slot box 520, one end of the top sealing plate 530 is detachably connected to the top of the first connection slot box 510, the other end of the top sealing plate 530 is detachably connected to the top of the second connection slot box 520, one end of the bottom sealing plate 540 is detachably connected to the top of the first connection slot box 510, and the other end of the bottom sealing plate 540 is detachably connected to the top of the second connection slot box 520.
Specifically, the bending bridge can be produced according to the thickness of the bending bridge plate and the width of the bending bridge. When the bending bridge is used, the second connecting groove box 520 can be rotated first, the included angle between the first connecting groove box 510 and the second connecting groove box 520 can be adjusted according to the bending angle of the bending bridge, and after the angle is adjusted, the first fixing piece 550 can be installed, so that the included angle between the first connecting groove box 510 and the second connecting groove box 520 is fixed, and finally the top sealing plate 530 and the bottom sealing plate 540 are installed on the first connecting groove box 510 and the second connecting groove box 520. And then, connecting the two ends of the bending section bridge frame plate with the ports of the two straight-line section bridge frames to be connected respectively.
And 140, determining a target cable wiring scheme and a target cable bridge wiring scheme according to the cable bridge wiring scheme corresponding to each candidate cable wiring scheme.
FIG. 2 is a schematic flow chart of determining a target cable routing scheme and a target cable tray layout scheme according to some embodiments of the present disclosure, as shown in FIG. 2, in some embodiments, determining a target cable routing scheme and a target cable tray layout scheme according to a cable tray layout scheme corresponding to each candidate cable routing scheme includes:
determining, for each candidate cabling scheme, a total cabling length, wherein the total cabling length may be a sum of lengths of each cable in the candidate cabling scheme;
Determining the total length of the straight-line bridge layout based on the cable bridge layout scheme corresponding to the candidate cable layout scheme, wherein the total length of the straight-line bridge layout can be the sum of the lengths of all the straight-line bridge in the cable bridge layout scheme corresponding to the candidate cable layout scheme;
determining bending angles of the same cable at different bending positions based on cable bridge frame layout schemes corresponding to candidate cable layout schemes, and determining cable angle change parameters based on the bending angles of the same cable at different bending positions;
determining bending angle change parameters of the bending section bridge frame based on the bending angle of each bending section bridge frame included in the cable bridge frame layout scheme corresponding to the candidate cable layout scheme;
acquiring construction environment information of a construction area, and determining the optimal bending angles corresponding to cables with different cable parameters based on the construction environment information of the construction area;
for each bending section bridge, determining the angle matching degree corresponding to the bending section bridge based on the optimal bending angles corresponding to the cables with different cable parameters and the bending angles of the bending section bridge;
And determining a target cable wiring scheme and a target cable bridge layout scheme based on the total cable wiring length of each candidate cable wiring scheme, the total linear segment bridge layout length of the cable bridge layout scheme corresponding to the candidate cable wiring scheme, the cable angle change parameter, the bending segment bridge bending angle change parameter and the angle matching degree corresponding to each bending segment bridge.
Specifically, the cable angle change parameter may be determined based on the following formula:
Wherein, The cable angle variation parameter for the i-th candidate cabling scheme,The ith candidate cable routing schemeThe local angle variation parameters of the segment cable,For the total number of cables included in the i-th candidate cabling scheme,The ith candidate cable routing schemeSection of cable at the firstThe bending angle of the respective return bending positions,The ith candidate cable routing schemeTotal number of return bend locations where bending of the segment cable occurs.
The bending angle change parameter of the bending section bridge frame can be determined based on the following formula:
Wherein, The bending angle change parameter of the bending section bridge frame for the ith candidate cable wiring scheme,The cable bridge layout scheme corresponding to the ith candidate cable layout scheme comprises the first cable bridge layout schemeBending angles of the bending section bridge frames,The cable bridge layout scheme corresponding to the i-th candidate cable layout scheme comprises the total number of bending section bridges.
The degree of angle matching corresponding to the bending bridge can be determined based on the following formula:
Wherein, For the overall angular matching of the i-th candidate cabling scheme,The cable bridge layout scheme corresponding to the ith candidate cable layout scheme comprises the first cable bridge layout schemeThe corresponding angle matching degree of the bridge frames with the bending sections,The cable bridge layout scheme corresponding to the ith candidate cable layout scheme comprises the first cable bridge layout schemeThe first bending section of the bridge frameThe bending angle of the seed cable is set,The cable bridge layout scheme corresponding to the ith candidate cable layout scheme comprises the first cable bridge layout schemeThe first bending section of the bridge frameThe optimum bending angle of the seed cable,The cable bridge layout scheme corresponding to the ith candidate cable layout scheme comprises the first cable bridge layout schemeThe total number of cable types in the individual bending section bridges,In order to set the parameters to be in the preset,。
For each candidate cable routing scheme, determining a matching score of the candidate cable routing scheme based on the total length of cable routing of the candidate cable routing scheme, the total length of straight-line segment bridge layout of the cable bridge layout scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending angle change parameter of the bending segment bridge and the angle matching degree corresponding to each bending segment bridge, taking the candidate cable routing scheme with the largest matching score as a target cable routing scheme, and taking the cable bridge layout scheme corresponding to the target cable routing scheme as a target cable bridge layout scheme.
For example, the matching score for a candidate cabling scheme may be calculated based on the following formula:
Wherein, For the matching score of the i-th candidate cabling scheme,AndAre all preset parameters, andAndAre all larger than 0 and are not smaller than 0,AndAre all of preset weights, andAndAre all larger than 0 and are not smaller than 0,，The total length of cabling for the i-th candidate cabling scheme,The total length of the straight-line segment bridge is routed for the ith candidate cable routing scheme.
FIG. 3 is a schematic flow diagram illustrating determining optimal bending angles for cables of different cable parameters according to some embodiments of the present disclosure, as shown in FIG. 3, in some embodiments, determining optimal bending angles for cables of different cable parameters based on construction environment information of a construction area, including:
Determining a correlation coefficient between a plurality of candidate construction factors (e.g., temperature, humidity, oxygen concentration, hydrogen sulfide gas concentration, sulfur dioxide gas concentration, etc.) and cable performance, and determining a plurality of target construction factors from the plurality of candidate construction factors;
determining a plurality of sample construction environments based on a plurality of target construction factors;
for each sample construction environment, acquiring performance test data of various sample cables under different bending angles;
for each sample cable, establishing an angle prediction model corresponding to the sample cable, and training the angle prediction model corresponding to the sample cable based on performance test data of the sample cable under different bending angles, wherein the angle prediction model can be a convolutional neural network (Convolutional Neural Network, CNN) model;
determining at least one target sample cable from a plurality of sample cables based on cable parameters of the cable, and determining a sample optimal bending angle of the target sample cable in construction environment information of a construction area based on construction environment information of the construction area through an angle prediction model corresponding to the target sample cable;
and determining the corresponding optimal bending angle of the cable based on the sample optimal bending angle of the construction environment information of each target sample cable in the construction area.
Specifically, the cable parameter similarity between the current cable and the sample cable can be calculated based on the cable parameter of the cable and the cable parameter of the sample cable, and the sample cable with the cable parameter similarity greater than the preset cable parameter similarity threshold is taken as the target sample cable.
For example, the cable parameter similarity between the current cable and the sample cable may be calculated based on the following formula:
Wherein, For the similarity of cable parameters between the current cable and the j-th sample cable,Is the conductor cross-sectional area of the current cable,The conductor cross-sectional area for the j-th sample cable,For the current insulation thickness of the cable,For the insulation thickness of the j-th sample cable,For the outer diameter of the current cable,For the outer diameter of the j-th sample cable,For the lay length of the current cable,For the lay length of the j-th sample cable,AndAre all preset parameters, andAndAre all larger than 0 and are not smaller than 0,AndAre all of preset weights, andAndAre all larger than 0 and are not smaller than 0,。
The average value of the sample optimal bending angles of the construction environment information of the target sample cable in the construction area can be calculated and used as the corresponding optimal bending angles of the cable.
And 150, generating construction management information based on the target cable routing scheme and the target cable bridge routing scheme.
In some embodiments, generating construction management information based on the target cable routing scheme and the target cable tray routing scheme includes:
and generating an optimal construction flow based on the target cable routing scheme and the target cable bridge routing scheme, wherein the optimal construction flow comprises a plurality of construction nodes, such as construction preparation nodes, bridge hinge manufacturing nodes, bridge sealing plate processing nodes, bridge installation construction nodes, bridge seamless construction nodes, readjustment fixing nodes and the like.
Specifically, the construction preparation node may include the following construction contents:
1) Removing ribs and a bottom sealing plate 540 at the upper part of the end part of the cable bridge according to a processing drawing, performing circular arc processing on the end part according to the whole height of the cable bridge as a diameter, punching at the circle center according to the diameter of a connecting bolt, and performing equal-division punching on all round areas according to the angle condition of a project bridge according to the connecting point of a rotating shaft, wherein the aperture size is determined to meet the diameter of the bolt;
2) The side sealing plates are processed by adopting round sealing plates with the same diameter and material as the end parts of the cable bridge, the circle center is perforated according to the diameter of the connecting bolts, and the holes are perforated at the same point positions of the four orthogonal directions and the end parts of the bridge, so that the cable bridge side sealing plates are used;
3) The bottom sealing plate 540 is made of galvanized plates with the same width as the cable bridge and the same material, holes are formed in the positions of one side of the sealing plate and the holes at the bottom of the cable bridge in a matching way, and four rows of bolt connecting holes are formed in the other side of the sealing plate according to the distance of one-time aperture so as to meet the condition that the sealing plate can be overlapped with the cable bridge connecting holes under different angles;
4) The technical files of various cable bridge frames are complete;
5) Finishing the building decoration engineering of the cable bridge mounting part, and finishing the installation of the warm, sanitary and ventilation engineering;
6) The position and the size of the reserved holes of the civil engineering meet the requirements of design and construction specifications.
The bridge hinge fabrication node may include:
And splicing the two sections of round ends of the cable bridge at the joint according to the bending angle of the bridge at the construction site, respectively covering the two sides with side sealing plates, and penetrating bolts at the center of the circle to form axial fixation. And bending the two sections of cable bridges into corresponding angle relations according to the determined bridge angles, and after the angle relations are measured by using a triangular ruler, adjusting the positions of the side sealing plates to enable the two sections of cable bridges to coincide with the hole sites of the side sealing plates, and connecting four points by using bolts to finish the fixation of the bending angles of the cable bridges.
The bridge frame sealing plate processing node can comprise the following construction contents:
Before the bottom sealing plate 540 is installed, the bottom sealing plate 540 is bent at the same angle according to the bending angle of the bridge frame in advance, and the hole position after bending is ensured to coincide with the cable bridge frame hole position in the process. The bottom sealing plate 540 covers the bottom of the cable bridge, one side of a single row of holes of the bottom sealing plate 540 is connected with bolts in advance according to a connecting mode from inside to outside, and the other side of the sealing plate is connected with the bending angle and the holes in the same mode, and the bolts are firmly fixed.
The bridge installation construction comprises the following construction contents:
According to the straight-line bridge frame model and materials, a proper bridge frame is selected to be used as a structure which needs to be adjusted in the laying direction in the laying process, the bending fixing point position of the cable bridge frame is determined according to paying-off positioning, a supporting frame is fixed, a bridge frame bending connecting piece is lifted in place, a proper auxiliary cross arm supporting frame is selected, the stability of the cable bridge frame at the mounting position is ensured, and the later-stage cable laying process can be smoothly carried out. In the bridge mounting process, whether the bolts of the bridge with the determined angle are loosened or not and whether the bottom sealing plate 540 is sealed or not are checked, so that the cable bridge system structure is ensured not to deform, and the condition that normal use is influenced is avoided.
The bridge seamless construction node can comprise the following construction contents:
The groove box made of the same material and with the section width slightly smaller than that of the cable bridge is selected as a connecting piece of the cable bridge at the position of the deformation joint, the side edge of the groove box is perforated, a round hole with the same diameter as that of a bolt is formed in one side of the groove box, a notch with the diameter of the bolt being 150mm is formed in the other side of the groove box, the groove box is arranged between the bridges at two sides of the deformation joint, the round hole at one end is fixed and screwed by the bolt, the notch at the other end is connected by the bolt, a gap is reserved at the notch at the other end, and the expansion and contraction of the groove box and the cable bridge in the horizontal direction are facilitated. After the groove box is installed, bridging treatment is carried out on the cable bridges at two sides.
The complex modulation fixed node can comprise the following construction contents:
after the telescopic bridge frame and the adjusting bridge frame are installed, the bridge frame elevation and the horizontal position are adjusted according to the bridge frame installation position, and the following requirements are met:
1. the telescopic cable bridge should be flat, free from distortion, free from burrs on the inner wall and complete in various accessories. After the bridge is installed, the bending angle is adjusted to meet the requirement of the bending radius of the cable, and the sealing plate is tightly connected with the bridge without gaps.
2. The joint of the telescopic cable bridge should be flat and the joint should be tight and straight. The pile with the groove cover is flat, no warping angle exists, and the position of the wire outlet is accurate.
3. The iron parts of all non-conductive parts of the cable bridge should be connected and bridged to each other so that they become a continuous conductor and make an integral ground.
5. The cable bridge laying at the bridge frame accords with the travelling direction of the construction drawing bridge frame, the bridge frame and the support frame have uniform elevation, and the bridge frames at the same elevation are on the same plane.
After the alignment is finished, a bridge bolt is connected with a bridge support frame, and a jumper wire is arranged at the connection part to finish the cable bridge laying construction.
In some embodiments, generating construction management information based on the target cable routing scheme and the target cable tray routing scheme includes:
And determining the optimal constructors and construction prompt information corresponding to each construction node.
The construction prompt may include quality control prompts and safety control prompts.
The quality control prompt message comprises:
Prompt information for controlling the incoming field quality of a cable bridge frame: 1. and (5) compiling a material use plan according to the specification model of the design requirement, the on-site investigation record and the construction scheme. The cable bridge comprises straight line segments of various specifications of cable bridges, the bridges, bridge accessories, supports, hangers and the like. Note that various materials required for cable tray installation require the use of galvanized materials. 2. And (3) according to the design requirements and the on-site investigation records, a cable use plan is compiled, wherein the cable use plan comprises power cables, control cables and the like with various specifications and models. 3. And (3) checking the incoming goods of the cable bridge frame: 1) A boxing list, a product qualification certificate and a delivery inspection report are required to be arranged in a bridge product packaging box, and the specification and the number of bridges or accessories are checked according to the list; 2) Appearance inspection of the bridge and the telescopic bridge: measuring whether the external dimension is consistent with the nominal model specification, and whether the bending surface is smooth and burr-free; the surface of the whole bridge plating layer should be uniform, free from burrs, overburning, ash, scars, non-galvanized peripheral parts (more than 2mm in diameter) and the like, and the thread plating layer should be smooth and the bolts screwed in. The surface of the galvanized coating is smooth and uniform, and the defects of skinning, bubbles, spots, scratches and the like are avoided; the spraying is flat, smooth, even, not skinning and bubble-free; the joint of the telescopic cable bridge should be flat, the joint should be compact and straight, the slot cover pile should be flat without warping angle; the surface of the welding seam of the bridge is uniform, and the defects of welding leakage, cracks, slag inclusion, burning-through, arc pits and the like are avoided; the bridge frame corresponds to the bolt holes of the sealing plate one by one, and the diameter of the aperture can be 2mm larger than that of the screw when the diameter of the screw is not larger than M16; the spacing between two adjacent holes in the same group allows deviation of +/-0.7 mm, and the spacing between any two holes allows deviation of +/-1 mm. The end hole spacing of adjacent groups allows for a deviation of + -1.2 mm.
Cable bridge installation quality control prompt message: 1. the metallic cable bridges and their supports and metallic cable guides leading in or out must be reliable with respect to ground (PE) or zero (PEN) and must meet the following specifications: 1) The whole length of the metal cable bridge and the bracket thereof is not less than 2 and is connected with a grounding (PE) or zero (PEN) trunk line; 2) The two ends of the connecting plate between the galvanized cable bridge frames are not connected with the grounding wire in a bridging way, but the two ends of the connecting plate are not less than 2 connecting fixing bolts with locknuts or lockwashers. 2. The length of the straight-line section steel cable bridge exceeds 30m, and the length of the aluminum alloy or glass fiber reinforced plastic cable bridge exceeds 15m, and an expansion joint is arranged; the cable bridge spans the deformation joint of the building and is provided with a compensation device. 3. The length of the straight-line section steel cable bridge exceeds 30m, and the length of the aluminum alloy or glass fiber reinforced plastic cable bridge exceeds 15m, an expansion joint is arranged; the cable bridge span the deformation joint of the building and should be provided with a compensating device; 4. the bridge frame is fixedly fastened with the bolts of the bracket piece and the bolts of the bridge frame connecting plate without omission, and the nuts are positioned on the outer side of the bridge frame; when the aluminum alloy bridge frame is fixed with the steel bracket, the anti-galvanic corrosion measures are insulated with each other; 5. the bridge frames are laid in the vertical shaft and pass through different fireproof areas, and fireproof blocking measures are arranged according to the design requirements; 6. when the bracket and the embedded part are welded and regulated, the welding seam is full; when the expansion bolts are fixed, the bolts are selected for adaptation, the connection is compatible, and the anti-loose parts are complete.
The safety control prompt may include:
1. Before construction, safety confirmation is needed, no hidden danger exists in the construction environment, hidden danger exists in the construction tool, personnel safety protection tools are complete, and no hidden danger exists after construction is finished.
2. The metal cable bridge and its support, bracket and the metal cable conduit which is led in or led out must be grounded or connected with zero line so as to ensure the safety of electricity.
3. All operating machines must be inspected carefully and carefully by an electromechanical temporary labourer, and after the test operation is satisfied, the operating machines can be put into construction operation, and the operation should be strictly performed according to the operation regulations in use, so that the safety is ensured.
4. The double ladder is used in the cable bridge installation and construction process, and a stay rope is required to be arranged at the position 40-60 cm away from the ladder feet, so that splitting is prevented. The upper end of the single ladder is to be firmly bound, and the lower end of the single ladder is to be supported by people.
5. The cable bridge is forbidden to alarm each other and throw various articles in the construction process, and illegal construction or behaviors should be pointed out and stopped immediately.
6. When electric welding, oxygen and acetylene are stored and used, they should be managed intensively according to the regulations and fire extinguishing equipment must be equipped. When using electric welding, the wires and the ground wires should be in place by double wires, the metal component is not used as the ground wire, and the operation is carried out according to the specification.
7. The inside and outside of the cable bridge should be smooth and flat, no thorns, no distortion, edge warping and other deformation phenomena should be avoided. During installation, special gloves should be worn, so that the cutting injury in the installation operation and construction process is avoided.
8. When the cable bridge is perforated on site, a protecting device is arranged on the equipment, so that the situation that two hands are too close to the perforation position when the equipment is perforated is avoided.
Step 160, managing the cable bridge construction based on the construction management information.
Fig. 6 is a schematic block diagram of a cable bridge construction management system based on the BIM technology according to some embodiments of the present disclosure, and as shown in fig. 6, a cable bridge construction management system based on the BIM technology may include a model building module, a scheme generating module, a scheme optimizing module, a scheme screening module, and a construction supervision module.
The model building module can be used for building a construction site three-dimensional model of a construction area based on BIM technology.
The solution generation module may be configured to determine a plurality of candidate cabling solutions based on a three-dimensional model of a construction site of the construction area.
The solution optimization module may be configured to determine, for each candidate cable routing solution, a plurality of return bend locations based on the candidate cable routing solution and a construction site three-dimensional model of the construction area, and generate a cable bridge routing solution corresponding to the candidate cable routing solution based on the plurality of return bend locations, the candidate cable routing solution, and the construction site three-dimensional model of the construction area, and the set of constraints.
The scheme screening module can be used for determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme;
the construction supervision module can be used for generating construction management information based on the target cable wiring scheme and the target cable bridge layout scheme.
The construction supervision module can also be used for managing the construction of the cable bridge based on construction management information.
The cable bridge construction management system based on the BIM technology can be used for executing a cable bridge construction management method based on the BIM technology, and more description of the cable bridge construction management system based on the BIM technology can be referred to the related description of the cable bridge construction management method based on the BIM technology, which is not repeated here.
Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments of this specification. Other variations are possible within the scope of this description. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present specification may be considered as consistent with the teachings of the present specification. Accordingly, the embodiments of the present specification are not limited to only the embodiments explicitly described and depicted in the present specification.
Claims (8)
1. The construction management method for the cable bridge based on the BIM technology is characterized by comprising the following steps of:
Building a construction site three-dimensional model of a construction area based on a BIM technology;
determining a plurality of candidate cable wiring schemes based on a construction site three-dimensional model of the construction area;
For each candidate cable routing scheme, determining a plurality of return bend positions based on the candidate cable routing scheme and a construction site three-dimensional model of the construction area, and generating a cable bridge routing scheme corresponding to the candidate cable routing scheme based on the plurality of return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and a constraint condition set;
Determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme;
Generating construction management information based on the target cable routing scheme and the target cable bridge routing scheme;
managing the construction of the cable bridge based on the construction management information;
Determining a target cable routing scheme and a target cable tray routing scheme according to the cable tray routing scheme corresponding to each candidate cable routing scheme, including:
determining a total cabling length for each of the candidate cabling schemes;
Determining the total length of the straight-line bridge layout based on the cable bridge layout scheme corresponding to the candidate cable layout scheme;
determining bending angles of the same cable at different bending positions based on cable bridge frame layout schemes corresponding to the candidate cable layout schemes, and determining cable angle change parameters based on the bending angles of the same cable at different bending positions;
Determining bending angle change parameters of the bending section bridge frame based on the bending angle of each bending section bridge frame included in the cable bridge frame layout scheme corresponding to the candidate cable layout scheme;
Acquiring construction environment information of the construction area, and determining the optimal bending angles corresponding to cables with different cable parameters based on the construction environment information of the construction area;
for each bending section bridge, determining the angle matching degree corresponding to the bending section bridge based on the optimal bending angles corresponding to the cables with different cable parameters and the bending angles of the bending section bridge;
Determining the target cable routing scheme and the target cable bridge routing scheme based on the total cable routing length of each candidate cable routing scheme, the total linear segment bridge routing length of the cable bridge routing scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending segment bridge bending angle change parameter and the angle matching degree corresponding to each bending segment bridge;
based on the construction environment information of the construction area, determining the optimal bending angle corresponding to the cables with different cable parameters comprises the following steps:
determining correlation coefficients between a plurality of candidate construction factors and cable performance, and determining a plurality of target construction factors from the plurality of candidate construction factors;
determining a plurality of sample construction environments based on the plurality of target construction factors;
for each sample construction environment, acquiring performance test data of various sample cables under different bending angles;
for each sample cable, establishing an angle prediction model corresponding to the sample cable, and training the angle prediction model corresponding to the sample cable based on performance test data of the sample cable under different bending angles;
Determining at least one target sample cable from the plurality of sample cables based on cable parameters of the cable, and determining a sample optimal bending angle of the target sample cable in construction environment information of the construction area based on construction environment information of the construction area through an angle prediction model corresponding to the target sample cable;
Determining a corresponding optimal bending angle of each target sample cable based on a sample optimal bending angle of construction environment information of each target sample cable in the construction area;
Determining a cable angle variation parameter based on the following formula:
wherein V (i,cable) is the cable angle variation parameter of the ith candidate cable routing scheme, For the local angle variation parameter of the nth 1 segments of cables of the ith candidate cabling scheme, N 1 is the total number of cables included in the ith candidate cabling scheme,For the bending angle of the nth 1 section of cable in the nth 2 bending position of the ith candidate cable routing scheme, N 2 is the total number of bending positions of the nth 1 section of cable in the ith candidate cable routing scheme;
determining bending angle change parameters of the bending section bridge frame based on the following formula:
Wherein V (i,Bridge) is the bending angle variation parameter of the bending section bridge frame of the ith candidate cable wiring scheme, For the bending angle of the bending section bridge frame of the N 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the ith candidate cable layout scheme, N 3 is the total number of bending section bridge frames included in the cable bridge frame layout scheme corresponding to the ith candidate cable layout scheme;
and determining the corresponding angle matching degree of the bending section bridge frame based on the following formula:
Wherein D (i,matching) is the overall angle matching degree of the ith candidate cable routing scheme, For the angle matching degree corresponding to the n 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i candidate cable layout scheme,The cable bridge layout scheme corresponding to the i candidate cable layout scheme comprises the bending angle of the n 4 cable in the n 3 bending section bridge,For the optimal bending angle of the N 4 type cable in the N 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i type candidate cable layout scheme, N 4 is the total number of cable types in the N 3 type bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i type candidate cable layout scheme, M 1 is a preset parameter, and M 1 is greater than 0;
For each candidate cable routing scheme, determining a matching score of the candidate cable routing scheme based on the total length of cable routing of the candidate cable routing scheme, the total length of straight-line segment bridge layout of the cable bridge layout scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending angle change parameter of the bending segment bridge and the angle matching degree corresponding to each bending segment bridge, taking the candidate cable routing scheme with the largest matching score as a target cable routing scheme, and taking the cable bridge layout scheme corresponding to the target cable routing scheme as a target cable bridge layout scheme;
The matching score for the candidate cabling scheme is calculated based on the following formula:
Wherein S i is a matching score of the i-th candidate cable routing scheme, M 2、M3、M4 and M 5 are preset parameters, M 2、M3、M4 and M 5 are both greater than 0, a 1、a2、a3、a4 and a 5 are both preset weights, a 1、a2、a3、a4 and a 5 are both greater than 0, a 1+a2+a3+a4+a5＝1,L(i,cable) is a total cable routing length of the i-th candidate cable routing scheme, and L (i,Bridge) is a straight-line segment bridge routing total length of the i-th candidate cable routing scheme.
2. The method for managing cable tray construction based on the BIM technique according to claim 1, wherein determining a plurality of candidate cable routing schemes based on a three-dimensional model of a construction site of the construction area includes:
and determining the plurality of candidate cable wiring schemes based on the electrical connection relation among the plurality of devices in the construction area and the construction site three-dimensional model of the construction area, wherein the candidate cable wiring schemes comprise wiring positions and cable parameters of cables between any two devices, and the cable parameters at least comprise model specifications, outer diameters and sectional areas.
3. The method for managing cable bridge construction based on the BIM technique according to claim 2, wherein the constraint condition set at least comprises a bridge thickness constraint, parallel clear distance constraints corresponding to different types of pipelines, cross clear distance constraints corresponding to different types of pipelines and bending angle constraints corresponding to cables with different parameters.
4. The cable bridge construction management method based on the BIM technology according to claim 3, wherein generating a cable bridge layout scheme corresponding to the candidate cable layout scheme based on the plurality of return bend positions, the candidate cable layout scheme, and a construction site three-dimensional model and a constraint condition set of the construction area includes:
Determining a multi-section straight-line bridge according to the candidate cable wiring scheme, the construction site three-dimensional model of the construction area and the constraint condition set;
For each straight-line bridge, determining cable parameters of each section of cable in the straight-line bridge according to the candidate cable wiring scheme and a construction site three-dimensional model of the construction area, and determining straight-line bridge parameters of the straight-line bridge according to the cable parameters of each section of cable in the straight-line bridge and the constraint condition set, wherein the straight-line bridge parameters of the straight-line bridge at least comprise straight-line bridge length, straight-line bridge plate thickness and straight-line bridge width;
For each return bending position, determining bending section bridge parameters of the bending section bridge corresponding to the return bending position based on straight line section bridge parameters of straight line section bridges at two ends of the return bending position, a construction site three-dimensional model of a construction area and the constraint condition set, wherein the bending section bridge parameters at least comprise bending angle of the bending section bridge, thickness of a bending section bridge plate and width of the bending section bridge.
5. The method for managing cable tray construction based on the BIM technique according to any one of claims 1 to 4, wherein generating construction management information based on the target cable routing scheme and the target cable tray routing scheme includes:
and generating an optimal construction flow based on the target cable routing scheme and the target cable bridge routing scheme, wherein the optimal construction flow comprises a plurality of construction nodes.
6. The method for managing cable tray construction based on the BIM technique of claim 5, wherein generating construction management information based on said target cable routing scheme and said target cable tray routing scheme comprises:
And determining the optimal constructors and construction prompt information corresponding to each construction node.
7. The method for managing construction of a cable bridge based on the BIM technology according to claim 4, wherein the bending section bridge comprises a first connecting groove box, a second connecting groove box, a top sealing plate and a bottom sealing plate, wherein the first connecting groove box is hinged with the second connecting groove box, a first fixing piece is arranged between the first connecting groove box and the second connecting groove box, one end of the top sealing plate is detachably connected with the top of the first connecting groove box, the other end of the top sealing plate is detachably connected with the top of the second connecting groove box, one end of the bottom sealing plate is detachably connected with the top of the first connecting groove box, and the other end of the bottom sealing plate is detachably connected with the top of the second connecting groove box.
8. The utility model provides a cable testing bridge construction management system based on BIM technique which characterized in that includes:
the model building module is used for building a construction site three-dimensional model of a construction area based on a BIM technology;
the scheme generation module is used for determining a plurality of candidate cable wiring schemes based on a construction site three-dimensional model of the construction area;
The scheme optimizing module is used for determining a plurality of return bend positions for each candidate cable routing scheme based on the candidate cable routing scheme and a construction site three-dimensional model of the construction area, and generating a cable bridge frame layout scheme corresponding to the candidate cable routing scheme based on the return bend positions, the candidate cable routing scheme and the construction site three-dimensional model of the construction area and a constraint condition set;
The scheme screening module is used for determining a target cable routing scheme and a target cable bridge routing scheme according to the cable bridge routing scheme corresponding to each candidate cable routing scheme;
The construction supervision module is used for generating construction management information based on the target cable wiring scheme and the target cable bridge layout scheme and managing the cable bridge construction based on the construction management information;
Determining a target cable routing scheme and a target cable tray routing scheme according to the cable tray routing scheme corresponding to each candidate cable routing scheme, including:
determining a total cabling length for each of the candidate cabling schemes;
Determining the total length of the straight-line bridge layout based on the cable bridge layout scheme corresponding to the candidate cable layout scheme;
determining bending angles of the same cable at different bending positions based on cable bridge frame layout schemes corresponding to the candidate cable layout schemes, and determining cable angle change parameters based on the bending angles of the same cable at different bending positions;
Determining bending angle change parameters of the bending section bridge frame based on the bending angle of each bending section bridge frame included in the cable bridge frame layout scheme corresponding to the candidate cable layout scheme;
Acquiring construction environment information of the construction area, and determining the optimal bending angles corresponding to cables with different cable parameters based on the construction environment information of the construction area;
for each bending section bridge, determining the angle matching degree corresponding to the bending section bridge based on the optimal bending angles corresponding to the cables with different cable parameters and the bending angles of the bending section bridge;
Determining the target cable routing scheme and the target cable bridge routing scheme based on the total cable routing length of each candidate cable routing scheme, the total linear segment bridge routing length of the cable bridge routing scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending segment bridge bending angle change parameter and the angle matching degree corresponding to each bending segment bridge;
based on the construction environment information of the construction area, determining the optimal bending angle corresponding to the cables with different cable parameters comprises the following steps:
determining correlation coefficients between a plurality of candidate construction factors and cable performance, and determining a plurality of target construction factors from the plurality of candidate construction factors;
determining a plurality of sample construction environments based on the plurality of target construction factors;
for each sample construction environment, acquiring performance test data of various sample cables under different bending angles;
for each sample cable, establishing an angle prediction model corresponding to the sample cable, and training the angle prediction model corresponding to the sample cable based on performance test data of the sample cable under different bending angles;
Determining at least one target sample cable from the plurality of sample cables based on cable parameters of the cable, and determining a sample optimal bending angle of the target sample cable in construction environment information of the construction area based on construction environment information of the construction area through an angle prediction model corresponding to the target sample cable;
Determining a corresponding optimal bending angle of each target sample cable based on a sample optimal bending angle of construction environment information of each target sample cable in the construction area;
Determining a cable angle variation parameter based on the following formula:
wherein V (i,cable) is the cable angle variation parameter of the ith candidate cable routing scheme, For the local angle variation parameter of the nth 1 segments of cables of the ith candidate cabling scheme, N 1 is the total number of cables included in the ith candidate cabling scheme,For the bending angle of the nth 1 section of cable in the nth 2 bending position of the ith candidate cable routing scheme, N 2 is the total number of bending positions of the nth 1 section of cable in the ith candidate cable routing scheme;
determining bending angle change parameters of the bending section bridge frame based on the following formula:
Wherein V (i,Bridge) is the bending angle variation parameter of the bending section bridge frame of the ith candidate cable wiring scheme, For the bending angle of the bending section bridge frame of the N 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the ith candidate cable layout scheme, N 3 is the total number of bending section bridge frames included in the cable bridge frame layout scheme corresponding to the ith candidate cable layout scheme;
and determining the corresponding angle matching degree of the bending section bridge frame based on the following formula:
Wherein D (i,matching) is the overall angle matching degree of the ith candidate cable routing scheme, For the angle matching degree corresponding to the n 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i candidate cable layout scheme,The cable bridge layout scheme corresponding to the i candidate cable layout scheme comprises the bending angle of the n 4 cable in the n 3 bending section bridge,For the optimal bending angle of the N 4 type cable in the N 3 bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i type candidate cable layout scheme, N 4 is the total number of cable types in the N 3 type bending section bridge frame included in the cable bridge frame layout scheme corresponding to the i type candidate cable layout scheme, M 1 is a preset parameter, and M 1 is greater than 0;
For each candidate cable routing scheme, determining a matching score of the candidate cable routing scheme based on the total length of cable routing of the candidate cable routing scheme, the total length of straight-line segment bridge layout of the cable bridge layout scheme corresponding to the candidate cable routing scheme, the cable angle change parameter, the bending angle change parameter of the bending segment bridge and the angle matching degree corresponding to each bending segment bridge, taking the candidate cable routing scheme with the largest matching score as a target cable routing scheme, and taking the cable bridge layout scheme corresponding to the target cable routing scheme as a target cable bridge layout scheme;
The matching score for the candidate cabling scheme is calculated based on the following formula:
Wherein S i is a matching score of the i-th candidate cable routing scheme, M 2、M3、M4 and M 5 are preset parameters, M 2、M3、M4 and M 5 are both greater than 0, a 1、a2、a3、a4 and a 5 are both preset weights, a 1、a2、a3、a4 and a 5 are both greater than 0, a 1+a2+a3+a4+a5＝1,L(i,cable) is a total cable routing length of the i-th candidate cable routing scheme, and L (i,Bridge) is a straight-line segment bridge routing total length of the i-th candidate cable routing scheme.
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| CN113704936A (en) * | 2021-07-28 | 2021-11-26 | 长江勘测规划设计研究有限责任公司 | Cable path multi-objective optimization method considering channel capacity and turning radius constraints |
| CN117725749A (en) * | 2023-12-25 | 2024-03-19 | 电子科技大学 | Bridge circuit layout optimization method and system based on Internet of things |
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| CN105005659B (en) * | 2015-07-16 | 2018-01-05 | 中国能源建设集团广东省电力设计研究院有限公司 | cable laying method and system |
| US11087034B1 (en) * | 2017-06-12 | 2021-08-10 | Hexagon Technology Center Gmbh | Large-scale capital project cable routing simulator |
| CN213151572U (en) * | 2020-09-27 | 2021-05-07 | 昆山圣康建设工程安装有限公司 | Variable elbow of cable bridge |
| CN117313380A (en) * | 2023-09-28 | 2023-12-29 | 中国电建集团西北勘测设计研究院有限公司 | Cable volume rate and turning radius limit optimization method and system |
| CN117828718A (en) * | 2023-12-14 | 2024-04-05 | 中国电建集团华东勘测设计研究院有限公司 | Bridge layout and layout optimization method based on BIM |
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