CN112632660B - Intelligent arrangement method of cable bridge support hangers linked by BIM design - Google Patents
Intelligent arrangement method of cable bridge support hangers linked by BIM design Download PDFInfo
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- CN112632660B CN112632660B CN202011445017.XA CN202011445017A CN112632660B CN 112632660 B CN112632660 B CN 112632660B CN 202011445017 A CN202011445017 A CN 202011445017A CN 112632660 B CN112632660 B CN 112632660B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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Abstract
The invention discloses an intelligent arrangement method of cable bridge supports and hangers linked by BIM design, which can directly find all parallel bridges in a floor where the linked cable bridges are located through a bounding box algorithm, wherein the sum of the number of the cable bridges linked in the floor and all parallel bridges associated with the linked cable bridges is the number of cross arms of each support and hanger, the distance between the cross arms in each support and hanger is the distance length between the bridges, and the distance is automatically calculated in a BIM system according to engineering, so that the design efficiency of the support and hanger is greatly improved. Aiming at the problem that the positioning information of the three-dimensional space of the supporting and hanging bracket is difficult to obtain, key information such as the elevation, the size, the number of layers and the like of the arrangement of the linked cable bridge is obtained in the three-dimensional space, the relative spatial position relation between the cable bridge and the wall surface, the ground and the floor in the installation area of the supporting and hanging bracket column is judged, and finally the intelligent type selection, positioning and quick arrangement of the supporting and hanging bracket are realized.
Description
Technical Field
The invention relates to the technical field of arrangement of support hangers for engineering cable laying, in particular to an intelligent arrangement method of support hangers of a cable bridge frame with BIM (building information modeling) design links.
Background
The BIM is used as a new digital design tool, has the characteristics of visualization, harmony, simulation, optimization and the like, and the BIM technology used in engineering can improve the engineering quality, shorten the engineering period and improve the working efficiency of designers.
A gallows will use often in industrial field and construction installation, it is the more important a ring of laying the engineering, rely on artifical judgement to obtain the height mark that the cable testing bridge of interlinkage in the three-dimensional space arranged, size, layer number etc. key information thereby fix a position a gallows three-dimensional space coordinate at a gallows layout in-process at present, thus not only inefficiency, work load is big, human eyes differentiate also to have subjectivity simultaneously, the error rate is big, this must influence the improvement of the quality and the efficiency of design, consequently should reduce manual intervention as far as possible in actual design.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an intelligent arrangement method of cable bridge supports and hangers in BIM design linkage, which eliminates subjectivity and randomness, realizes one-building type arrangement through computer calculation, solves the huge heavy engineering of the traditional design, enables the arrangement of the supports and hangers to be more intelligent, and improves the design efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an intelligent arrangement method of cable bridge supports and hangers linked by BIM design comprises the following steps:
step 2, determining design parameters of a supporting and hanging bracket: the BIM system establishes a Revit family of the support and hanger according to the design information and guides the Revit family into the BIM system;
step 3, selecting a cable bridge to be linked: obtaining all parallel bridges associated with linked cable bridges within the same floor;
step 4, if the arrangement mode is wall surface installation, selecting an installed wall body by a support and hanger for wall surface installation, and installing; if the arrangement mode is ground installation, the upper floor surface needs to be searched and installed; if the arrangement mode is hoisting, the floor surface of the lower floor needs to be searched and installed; the wall surface, the ground and the floor slab are the wall surface, the ground and the floor slab in the installation area of the support hanger column;
step 5, determining the coordinate position of a support and hanger column positioning point in the BIM system;
step 6, determining the coordinate position of the cross arm of the supporting and hanging bracket in the BIM system;
and 7, inputting the information in the step 5 and the step 6 into a BIM system, calculating the coordinate position constructed by the support and hanger, and drawing the BIM model of the whole support and hanger.
The technical scheme of the invention is further improved as follows: in the step 2, a Revit family is established according to the parameters of the supporting and hanging frame columns, the parameters of the cross arms and the drawing parameters, wherein the parameters of the supporting and hanging frame columns comprise the styles, materials, models and lengths of the supporting and hanging frame columns, the parameters of the cross arms comprise the materials, models and lengths of the cross arms, the drawing parameters comprise installation starting distances and installation distances, the installation starting distances are the distances of the ends of the cable bridges linked with the supporting and hanging frame distances, and the installation distances are the distances between the supporting and hanging frames.
The technical scheme of the invention is further improved as follows: in the step 3, all parallel bridges associated with the linked cable bridges in the same floor are obtained by adopting a bounding box algorithm, and the specific steps are as follows:
1) Acquiring a space view range through the floor elevation of the linked cable bridge;
2) Acquiring a plane view of a linked cable bridge, namely Floorpan;
3) Determining the Bounding Box collision range of the linked cable bridge, namely the Bounding Box size according to the space view range of the step 1) and the plane view obtained in the step 2);
4) Adopting a bounding box to filter the bridge frame;
5) And determining the relation between the filtered bridge and the linked cable bridge, wherein the parallel is the required bridge, otherwise, the required bridge is not.
The technical scheme of the invention is further improved as follows: the wall conditions of the selected installation of the support and hanger frame installed on the wall in the step 4 are as follows: whether the linked cable bridge has a projection body on the wall surface or not can be installed if the linked cable bridge has the projection body on the wall surface; and the lifting and ground installation modes adopt a projection algorithm to find the corresponding floor slab, and the floor slab can be installed when found.
The technical scheme of the invention is further improved as follows: the concrete steps of finding the corresponding floor slab by adopting a projection algorithm in hoisting and ground installation modes are as follows:
1) Acquiring all floor slabs in a BIM system space;
2) Traversing the floor slabs, and searching corresponding floor surfaces, wherein the floor installation needs to search an upper floor surface, and the hoisting needs to search a lower floor surface;
3) The linked cable bridge is designed in a projection mode on the found floor surface;
4) For the floor slab with the projection point, calculating the distance between the linked cable bridge and the projection;
5) Finally, the floor slab with the shortest projection distance is found.
The technical scheme of the invention is further improved as follows: and 5, projecting the linked cable bridge onto a projection line on the floor surface, inputting the elevation difference between the linked cable bridge and the floor surface into the BIM system, and calculating to obtain a group of coordinate points.
The technical scheme of the invention is further improved as follows: and 6, if the number of the cross arms of each supporting hanger is N, then N = M, wherein M is the sum of the number of the cable bridges linked in the same floor and all parallel bridges associated with the linked cable bridges, the distance between the cross arms in each supporting hanger is the distance length between the bridges, and the distance length is automatically calculated in a BIM system according to engineering.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. according to the invention, all parallel bridges in a floor where the linked cable bridge is located can be directly found through a bounding box algorithm, the sum of the number of the cable bridge linked in the floor and all parallel bridges associated with the linked cable bridge is the number of cross arms of each hanger, the distance between the cross arms in each hanger is the distance length between the bridges, and the distance is automatically calculated in a BIM system according to engineering, so that the design efficiency of the hangers is greatly improved;
2. according to the invention, the corresponding floor slabs are found by adopting a projection algorithm in the hoisting and ground installation modes, the installation points of the supporting and hanging frame in the BIM system can be quickly positioned, and the quick search is more suitable for the actual engineering requirements;
3. the parameterized intelligent arrangement method eliminates subjectivity and randomness, realizes one-building arrangement through computer calculation, solves the huge heavy engineering of the traditional design, enables the arrangement of the supporting and hanging bracket to be more intelligent, and improves the design efficiency;
4. aiming at the problem that the positioning information of the three-dimensional space of the supporting and hanging bracket is difficult to obtain, key information such as the elevation, the size, the number of layers and the like of the arrangement of the linked cable bridge is obtained in the three-dimensional space, the relative spatial position relation between the cable bridge and the wall surface, the ground and the floor in the installation area of the supporting and hanging bracket column is judged, and finally the intelligent type selection, positioning and quick arrangement of the supporting and hanging bracket are realized.
Drawings
FIG. 1 is a flow diagram of the invention as a whole;
FIG. 2 is a flow chart of the packing box algorithm of the present invention;
FIG. 3 is a flow chart of the projection algorithm of the present invention;
FIG. 4 is a three-dimensional view of the position connection between the support hangers and the bridge rack on the same floor according to the present invention;
FIG. 5 is a front view of the positional connection between the support hangers and the bridge of the present invention on the same floor;
the system comprises a support hanger column 1, a cross arm 2, a cross arm 3, a linked cable bridge, a parallel bridge 4, an upper floor board 5, a lower floor board 6 and a lower floor board.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1, an intelligent arrangement method of cable tray supports and hangers linked by BIM design includes the following steps:
step 2, determining design parameters of a supporting and hanging bracket: constructing a Revit family according to parameters of a support hanger column 1, parameters of a cross arm 2 and drawing parameters, and guiding the Revit family into a BIM system, wherein the parameters of the support hanger column 1 comprise the style, the material, the model and the length of the support hanger column 1, the parameters of the cross arm 2 comprise the material, the model and the length of the cross arm 2, the drawing parameters comprise an installation starting distance and an installation interval, the installation starting distance is the distance between the support hangers and the end part of a cable bridge 3 linked with the support hangers, and the installation interval is the distance between the support hangers;
step 3, selecting a cable bridge 3 to be linked: all parallel bridges 4 associated with the linked cable bridges 3 within the floor are obtained using a bounding box algorithm, the flow chart of which is shown in fig. 2:
1) Acquiring a space view range through the floor elevation of the linked cable bridge 3;
2) Obtaining a plane view of the linked cable bridge 3, namely Floorpan;
3) Determining the Bounding Box collision range of the linked cable bridge 3, namely the Bounding Box size according to the space view range of the step 1) and the plane view obtained in the step 2);
4) Adopting a bounding box filter bridge frame;
5) Determining the relation between the filtered bridge and the linked cable bridge 3, wherein the parallel is the required parallel bridge 4, otherwise the parallel bridge 4 is not the required parallel bridge 4;
step 4, if the arrangement mode is wall installation, selecting the wall body to be installed by the support and hanger of the wall installation, and selecting the wall body condition to be installed by the support and hanger of the wall installation as follows: whether the linked cable bridge 3 has a projection body on the wall surface or not can be installed if the projection body exists; if the arrangement mode is ground installation, the upper floor surface 5 needs to be searched and installed; if the arrangement mode is hoisting, the lower floor surface 6 needs to be searched and installed; the lifting and ground installation mode adopts a projection algorithm to find the corresponding floor slab, and the floor slab can be installed if found, as shown in fig. 4 and 5: the supporting and hanging frame comprises a supporting and hanging frame column 1 and a cross arm 2, and the wall surface, the ground and the floor slab are the wall surface, the ground and the floor slab in the installation area of the supporting and hanging frame column 1;
the flow chart of the specific steps of finding the corresponding floor slab by adopting the projection algorithm in the hoisting and ground installation modes is shown in fig. 3:
1) Acquiring all floor slabs in the BIM system space;
2) Traversing the floor slabs, and searching corresponding floor surfaces, wherein the floor installation needs to search an upper floor surface 5, and the hoisting needs to search a lower floor surface 6;
3) The linked cable bridge 3 is projected on the found floor surface;
4) For the floor with projection points, calculating the distance between the linked cable bridge 3 and the projection;
5) Finally, the floor slab with the shortest projection distance is found.
Step 5, determining the coordinate position of the positioning point of the support frame column 1 in the BIM system: positioning points of the supporting hanger columns 1 are projection lines projected to the floor by the linked cable bridges 3, the elevation difference between the linked cable bridges 3 and the floor is input into a BIM system, and a group of coordinate points are obtained through calculation;
and 6, determining the coordinate position of the cross arm 2 of the support and hanger in the BIM system: the number of the cross arms 2 of each supporting and hanging bracket is N, then N = M, wherein M is the sum of the number of the cable bridges 3 linked in the same floor and all parallel bridges 4 associated with the linked cable bridges 3, and the distance between the cross arms 2 in each supporting and hanging bracket is the distance length between the bridges and is automatically calculated in a BIM system according to engineering;
and 7, inputting the information in the step 5 and the step 6 into a BIM system, calculating the coordinate position constructed by the support and hanger, and drawing the BIM model of the whole support and hanger.
Aiming at the problem that the positioning information of the three-dimensional space of the supporting and hanging bracket is difficult to obtain, the invention obtains key information such as the elevation, the size, the layer number and the like of the arrangement of the linked cable bridge 3 in the three-dimensional space, and judges the relative spatial position relation with the wall surface, the ground and the floor slab in the installation area of the supporting and hanging bracket column 1, thereby finally realizing the intelligent type selection, positioning and quick arrangement of the supporting and hanging bracket.
Claims (2)
1. An intelligent arrangement method of cable bridge supports and hangers linked by BIM design is characterized in that: the method comprises the following steps:
step 1, determining an arrangement mode of a support and hanger: the arrangement mode of the supporting and hanging frames is selected according to engineering or user requirements and comprises the following steps: wall surface installation, ground installation and hoisting;
step 2, determining design parameters of a supporting and hanging bracket: the BIM system establishes a Revit family of the support and hanger according to the design information and introduces the Revit family into the BIM system;
step 3, selecting a cable bridge to be linked: all parallel bridges associated with the linked cable bridges in the same floor are obtained by adopting a bounding box algorithm, and the method specifically comprises the following steps:
1) Acquiring a space view range through the floor elevation of the linked cable bridge;
2) Obtaining a plane view of a linked cable bridge, namely Floorpan;
3) Determining the Bounding Box collision range of the linked cable bridge, namely the Bounding Box size, according to the space view range of the step 1) and the plane view obtained in the step 2);
4) Adopting a bounding box filter bridge frame;
5) Determining the relation between the filtered bridge and the linked cable bridge, wherein the parallel is the required parallel bridge, otherwise the parallel bridge is not the required parallel bridge;
step 4, if the arrangement mode is wall surface installation, selecting an installed wall body by a support and hanger for wall surface installation, and installing; if the arrangement mode is ground installation, the upper floor surface needs to be searched and installed; if the arrangement mode is hoisting, the floor surface of the lower floor needs to be searched and installed; the wall surface, the ground and the floor slab are the wall surface, the ground and the floor slab in the installation area of the support hanger column; the wall conditions of the selected installation of the support and hanger frame of the wall installation are as follows: whether the linked cable bridge has a projection body on the wall surface or not can be installed if the linked cable bridge has the projection body on the wall surface; the lifting and ground installation modes adopt a projection algorithm to find a corresponding floor slab, and installation can be carried out if the floor slab is found;
the concrete steps of finding the corresponding floor slab by adopting a projection algorithm in hoisting and ground installation modes are as follows:
1) Acquiring all floor slabs in a BIM system space;
2) Traversing the floor slab, and searching a corresponding floor slab surface, wherein the floor installation needs to search an upper floor slab surface, and the hoisting needs to search a lower floor slab surface;
3) The linked cable bridge is designed in a projection mode on the found floor surface;
4) For the floor with the projection point, calculating the distance between the linked cable bridge and the projection;
5) Finally, the floor slab with the shortest projection distance is found out and is the found floor slab;
step 5, determining the coordinate position of a support and hanger column positioning point in the BIM system, wherein the support and hanger column positioning point is a projection line projected to the floor surface by the linked cable bridge, inputting the height difference between the linked cable bridge and the floor surface into the BIM system, and calculating to obtain a group of coordinate points;
step 6, determining the coordinate position of the cross arms of the supporting and hanging frames in the BIM system, wherein the number of the cross arms of each supporting and hanging frame is N, and N = M, wherein M is the sum of the number of the cable bridges linked in the same floor and all parallel bridges associated with the linked cable bridges, and the distance between the cross arms in each supporting and hanging frame is the distance length between the bridges and is automatically calculated in the BIM system according to engineering;
and 7, inputting the information in the step 5 and the step 6 into a BIM system, calculating the coordinate position constructed by the support and hanger, and drawing the BIM model of the whole support and hanger.
2. The intelligent layout method of BIM design-linked cable tray supports and hangers as claimed in claim 1, wherein: in the step 2, a Revit family is constructed according to the parameters of the supporting and hanging bracket columns, the parameters of the cross arms and the drawing parameters, wherein the parameters of the supporting and hanging bracket columns comprise styles, materials, models and lengths of the supporting and hanging bracket columns, the parameters of the cross arms comprise materials, models and lengths of the cross arms, the drawing parameters comprise installation starting distances and installation distances, the installation starting distances are distances from the ends of the cable bridge frame linked with the supporting and hanging bracket columns, and the installation distances are distances between the supporting and hanging brackets.
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