CN109086522B - Structure hierarchy modeling method for bridge management and maintenance process based on INVENTOR - Google Patents
Structure hierarchy modeling method for bridge management and maintenance process based on INVENTOR Download PDFInfo
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Abstract
The invention discloses a structural hierarchy modeling method for a bridge management and maintenance process based on INVENTOR, which comprises the steps of carrying out structural hierarchy division on an object for implementing modeling, and establishing a bridge structural tree from top to bottom; building each bottom layer component of the bridge from the lowest hierarchical content according to the bridge structure tree; loading the built bottom layer ipt file according to the content of the penultimate hierarchy in the bridge structure tree, assembling, and building all models of the penultimate hierarchy of the bridge structure tree; establishing all the models of each level of the bridge structure tree step by step from bottom to top; and checking the established model, adjusting the hierarchical relation of the components which are not modeled according to the hierarchy and the components with the hierarchy errors in modeling, and finally deriving the IFC format file. According to the invention, each level member in the BIM model can be disassembled and carried with relevant information independently, and the full-bridge model is integrated; the requirements of bridge maintenance management assessment on multi-level grading are met, the workload is reduced, and manpower and material resources are saved.
Description
Technical Field
The invention belongs to the field of BIM application in a bridge management and maintenance stage, and particularly relates to a structure hierarchical modeling method oriented to a bridge management and maintenance process based on an INVENTOR.
Background
Because of factors such as large bridge engineering investment, complex construction process, long service cycle, severe working environment, and incapacitation of the consequences once risks occur, BIM (Building Information Modeling) technology is rapidly increasing in application in the bridge field, particularly in the design and construction stage, and is less in application in the management and maintenance stage.
The necessary condition for applying BIM technology in the bridge management, maintenance and operation stage is to establish a BIM model meeting the management, maintenance and operation requirements. The bridge built by the traditional Revit and other software cannot meet the operation and maintenance requirements of the bridge, and the essential reason is that the bridge management maintenance assessment comprises a plurality of levels (subsection components, parts, components and the like), the traditional BIM model does not comprise any relation, the subsection components cannot be continuously split, and the BIM model (up to the whole model and down to the bottom component) must comprise digital information. If the model cannot be split, the sub-model data of the next level cannot be assigned. The model cannot carry data, and the meaning of BIM is lost. If all the layers are modeled, the workload is huge, and the number of models is too large, so that the models are not easy to manage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a structure hierarchy modeling method facing the bridge management and maintenance process based on the INVENTOR, which lays a foundation for the application of BIM technology in the bridge management and maintenance stage, so that each layer of components in the BIM model can be disassembled independently, related information can be carried independently, and the full bridge model is integrated; the requirements of bridge maintenance management assessment on multi-level grading are met, the workload is reduced, and manpower and material resources are saved.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a structure hierarchy modeling method facing bridge management and maintenance process based on INVENTOR comprises the following steps:
step 1: carrying out structure hierarchy division on the object for modeling, and establishing a bridge structure tree from top to bottom to be used as a modeling catalog reference;
step 2: the method comprises the steps of establishing an ipt part file in INVENTOR software, establishing each bottom layer component of a bridge from the lowest-level content according to the bridge structure tree in the step 1, and adding unique attribute information;
step 3: after the establishment of all components of the bottommost level of the bridge structure tree is completed, a iam component file is established in INVENTOR software, the bottom layer ipt file established in the step 2 is loaded and assembled according to the content of the penultimate level in the bridge structure tree in the step 1, a penultimate level all model of the bridge structure tree is established, and unique attribute information is added;
step 4: establishing all the models of each level of the bridge structure tree step by step from bottom to top according to the method of the step 3, adding unique attribute information of each level, and adding component commonality attribute information through a BOM table;
step 5: and (3) checking the built model, adjusting the hierarchical relation of the components which are not modeled according to the hierarchy and the components with the hierarchy errors during modeling, enabling the bridge structure tree of the model to be consistent with the bridge structure tree built in the step (1), and finally, exporting an IFC format file.
As a further improved technical scheme of the present invention, the step 1 specifically includes:
according to bridge maintenance management requirements and reference bridge maintenance specifications, carrying out structural hierarchy division on objects subjected to modeling, and establishing a bridge structural tree from top to bottom as a modeling catalog reference, wherein the bridge structural tree is classified into an uplink structure, a downlink structure, a span structure, a subsection structure, a component type and a component according to bridge maintenance.
As a further improved technical scheme of the present invention, the unique attribute information in the step 2 refers to attribute information of a certain type of member of the lowest level, but attribute information of other type of member of the lowest level or members of other levels does not, and the unique attribute information includes cable force information of a cable stayed cable of the cable stayed bridge.
As a further improved technical scheme of the present invention, the adding unique attribute information in the step 2 specifically includes: the unique attribute information is added by defining custom items in the building block iProperty.
As a further improved technical scheme of the present invention, the step 3 specifically includes:
after the establishment of all components of the bottommost level of the bridge structure tree is completed, a iam component file is established in the INVENTOR software, the bottom layer ipt file established in the step 2 is loaded according to the content of the penultimate level in the bridge structure tree in the step 1, the bottom layer ipt file is assembled through an assembly module in the INVENTOR software, all models of the penultimate level of the bridge structure tree are established, and unique attribute information is added.
As a further improved technical scheme of the present invention, the unique attribute information in the step 3 refers to attribute information of a certain type of member of the penultimate hierarchy, but attribute information of other type of member of the penultimate hierarchy or member of other hierarchy does not, and the unique attribute information includes cable force information of a cable stayed cable of the cable-stayed bridge.
As a further improved technical scheme of the present invention, the unique attribute information in the step 4 refers to attribute information of a certain type of member of a certain level in each level, but attribute information of other type of member in the level or members of other levels in each level does not exist, and the unique attribute information includes cable force information of a cable stayed bridge stay cable;
the common attribute information in the step 4 refers to attribute information of a certain type of member of a certain level in each level, and attribute information of other types of members of the level or members of other levels, wherein the common attribute information comprises unique coding information of each member of the model;
the adding of the component commonality attribute information through the BOM table in the step 4 specifically comprises the following steps:
BOM tables in management function modules in the INVENTOR software are added in batches according to components contained in the current model and common attribute information is imported.
As a further improved technical solution of the present invention, the adjusting the hierarchical relationship of the component which is not modeled according to the hierarchy in the modeling in the step 5 and the component with the hierarchy error specifically includes:
and selecting components to be combined into the same hierarchy from the bridge structure tree in the INVENTOR software, performing upgrading or downgrading operation according to the hierarchy to which the currently selected components belong and the relative hierarchy level-to-level relation between the hierarchy to which the currently selected components belong after the hierarchy is adjusted, dragging the components in the bridge structure tree to perform relevant position adjustment, and storing the components as a iam component file to finish the hierarchy adjustment.
The beneficial effects of the invention are as follows: through structural hierarchical modeling, each hierarchical component in the BIM model can be disassembled independently and carry relevant information independently, and the full-bridge model is integrated. The requirements of bridge maintenance management assessment on multi-level grading are met, the workload is reduced, and manpower and material resources are saved. And each disassembled part in the detachable model is independent, lays a foundation in association with database data, and simultaneously realizes quick carding, archiving and searching. From the practical work angle of bridge management and maintenance, the invention innovatively establishes the BIM modeling method which is based on the structure hierarchy relation and is convenient for expert evaluation, namely, the correlation with the BIM technology in bridge design and construction is enhanced, convenience is provided for the subsequent management and maintenance platform construction, database construction and model correlation, and the BIM modeling method is widely applied and popularized.
Drawings
FIG. 1 is a diagram showing the effect of a full-bridge structure modeled by the modeling method of the present invention.
FIG. 2 is a graph of the effect of a cross-structure modeled by the modeling method of the present invention.
FIG. 3 is a graph of the effect of a certain cross-underlying structure modeled by the modeling method of the present invention.
Detailed Description
The following description of the specific embodiments of the present invention will be further described with reference to fig. 1 to 3, in which, in order to make the present invention more clear, the present embodiment is described with respect to a cable-stayed bridge:
a structure hierarchy modeling method facing bridge management and maintenance process based on INVENTOR comprises the following steps:
step 1: according to bridge maintenance management requirements and reference bridge maintenance specifications, carrying out structural hierarchy division on an object subjected to modeling, and establishing a bridge structural tree from top to bottom to be used as a modeling catalog reference; the bridge structure tree can be classified into an uplink and a downlink, a span number, a subsection structure, a component type and a component by referring to bridge maintenance, and the uplink and the downlink, the span number, the subsection structure, the component type and the component are the classified hierarchy. Table 1 below shows the upper structural tree in the partial structure of the cable-stayed bridge.
Table 1, upper structural tree in the partial structure of cable-stayed bridge:
step 2: in the INVENTOR software, an ipt part file is built, bridge structure tree according to the step 1 is started from the lowest-level content, each bottom layer component of the bridge is built according to a drawing, namely, a 1# pier support, a 2# pier support and other components in the building level of the table 1 are all modeled, corresponding unique attribute information is added by defining custom items in the component iProperty, the unique attribute information in the step 2 refers to attribute information of a certain type of component in the lowest level, and attribute information of other type of component in the lowest level or component in other levels does not exist, such as information of support type, ultimate compressive strength and the like of the 1# pier support; the unique attribute information comprises cable force information of a stayed cable of the cable-stayed bridge.
Step 3: after the establishment of all components of the bottommost level of the bridge structural tree is completed, establishing a penultimate level iam component file in the INVENTOR software, loading the bottom layer ipt file established in the step 2 according to the content of the penultimate level in the bridge structural tree in the step 1, and assembling the bottom layer ipt file through an assembly module in the INVENTOR software, for example, establishing pier supports in a component type level, namely assembling and positioning all pier supports contained in the component level of the next layer to form a component type level pier support BIM model; establishing a full model of the penultimate hierarchy of the bridge structure tree, and adding corresponding unique attribute information through defining custom items in the component iProperty; the unique attribute information in the step 3 refers to attribute information of a certain type of member of the penultimate hierarchy, while other type of member of the penultimate hierarchy or members of other hierarchy do not have attribute information, and the unique attribute information comprises cable force information of a cable stayed cable of the cable-stayed bridge.
Step 4: and (3) establishing all the models of each level of the bridge structure tree step by step from bottom to top according to the method of the step (repeating the step 3), continuously constructing BIM models of the levels and the sub-structure levels on the basis of completing the BIM models of the levels of the components and the component types, adding corresponding unique attribute information of each level, and adding component commonality attribute information through a BOM table. For example, when the last three-level model is built, according to the content of the last three-level in the bridge structure tree in the step 1, the last three-level iam component files built in the step 3 are loaded, and the last three-level iam component files are assembled through an assembly module in the INVENTOR software, so that the whole last three-level model of the bridge structure tree is built. The modeling methods of the remaining levels are analogized.
The unique attribute information in the step 4 refers to attribute information of a certain type of member of a certain level in each level, but attribute information of other type of member of the level or members of other levels in each level does not exist, and the unique attribute information comprises cable force information of a cable stayed bridge stay cable; the common attribute information in step 4 refers to attribute information that a certain class of member of a certain hierarchy in each hierarchy has, and other class of member of the hierarchy or members of other hierarchy also have, and the common attribute information includes unique code information for each member of the model.
The adding of the component commonality attribute information through the BOM table in the step 4 specifically comprises the following steps: the BOM table function in the management function module in the INVENTOR software can be added in batches according to the components contained in the current model and common attribute information can be imported. Integrating and processing the information to be added in batch in the EXCEL in advance, and ensuring that the arrangement sequence of the components in the INVENTOR software is consistent with the arrangement sequence of the components to be added in batch in the EXCEL table. The custom iProperty column is added in the INVENTOR software BOM table and named as the attribute information name to be added. The addition is done by copying and pasting the information in the EXCEL table.
Step 5: checking the established model, adjusting the hierarchical relation of components which are difficult to model according to the hierarchy because of the complicated drawing and components with wrong hierarchy in the modeling, selecting components which need to be combined into the same hierarchy from a left bridge structure tree in the INVENTOR software, performing upgrading or downgrading operation according to the relative hierarchical height relation between the hierarchy to which the currently selected components belong and the hierarchy to which the currently selected components belong after the hierarchy is adjusted, dragging the components in the bridge structure tree to perform relevant position adjustment, and restoring the components into iam component files to finish the hierarchy adjustment; and (3) enabling the structural tree of the model at the moment to be consistent with the structural tree established in the step (1), and finally, exporting the IFC format file.
Fig. 1 is a diagram showing the effect of a full-bridge structure modeled by the above method.
Fig. 2 is a graph of the effect of a cross-structure after modeling according to the method described above.
Fig. 3 is a diagram showing the effect of a certain cross-underlying structure after modeling according to the method described above.
According to the invention, through structural hierarchical modeling, each level member in the BIM model can be disassembled independently and carry relevant information independently, and the full-bridge model is integrated. The requirements of bridge maintenance management assessment on multi-level grading are met, the workload is reduced, and manpower and material resources are saved. And each disassembled part in the detachable model is independent, lays a foundation in association with database data, and simultaneously realizes quick carding, archiving and searching.
The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.
Claims (3)
1. The structural hierarchy modeling method facing the bridge maintenance process based on the INVENTOR is characterized by comprising the following steps of:
step 1: carrying out structure hierarchy division on the object for modeling, and establishing a bridge structure tree from top to bottom to be used as a modeling catalog reference;
step 2: the method comprises the steps of establishing an ipt part file in INVENTOR software, establishing each bottom layer component of a bridge from the lowest-level content according to the bridge structure tree in the step 1, and adding unique attribute information;
step 3: after the establishment of all components of the bottommost level of the bridge structure tree is completed, a iam component file is established in INVENTOR software, the bottom layer ipt file established in the step 2 is loaded and assembled according to the content of the penultimate level in the bridge structure tree in the step 1, a penultimate level all model of the bridge structure tree is established, and unique attribute information is added;
step 4: establishing all the models of each level of the bridge structure tree step by step from bottom to top according to the method of the step 3, adding unique attribute information of each level, and adding component commonality attribute information through a BOM table;
step 5: checking the established model, adjusting the hierarchical relation of the components which are not modeled according to the hierarchy and the components with the hierarchy errors during modeling, enabling the bridge structure tree of the model to be consistent with the bridge structure tree established in the step 1, and finally exporting an IFC format file;
the unique attribute information in the step 2 refers to attribute information of a certain type of member at the bottom level, but attribute information of other types of members at the bottom level or members at other levels does not exist, and the unique attribute information comprises cable force information of a stayed cable of the cable-stayed bridge;
the adding unique attribute information in the step 2 specifically includes: adding unique attribute information through a custom item in a definition component iProperty;
the step 3 specifically includes:
after the establishment of all components of the bottommost level of the bridge structure tree is completed, establishing iam component files in the INVENTOR software, loading the bottom layer ipt files established in the step 2 according to the content of the penultimate level in the bridge structure tree in the step 1, assembling the bottom layer ipt files through an assembly module in the INVENTOR software, establishing the full model of the penultimate level of the bridge structure tree, and adding unique attribute information;
the unique attribute information in the step 3 refers to attribute information of a certain type of member of the penultimate hierarchy, and attribute information of other type of member of the penultimate hierarchy or member of other hierarchy does not exist, wherein the unique attribute information comprises cable force information of a cable-stayed bridge stay cable;
the unique attribute information in the step 4 refers to attribute information of a certain type of member of a certain level in each level, but attribute information of other type of member of the level or members of other levels in each level does not exist, and the unique attribute information comprises cable force information of a cable stayed bridge stay cable;
the common attribute information in the step 4 refers to attribute information of a certain type of member of a certain level in each level, and attribute information of other types of members of the level or members of other levels, wherein the common attribute information comprises unique coding information of each member of the model;
the adding of the component commonality attribute information through the BOM table in the step 4 specifically comprises the following steps:
BOM tables in management function modules in the INVENTOR software are added in batches according to components contained in the current model and common attribute information is imported.
2. The method for modeling the structure hierarchy of the bridge-oriented management and maintenance process based on the INVENTOR according to claim 1, wherein the step 1 specifically includes:
according to bridge maintenance management requirements and reference bridge maintenance specifications, carrying out structural hierarchy division on objects subjected to modeling, and establishing a bridge structural tree from top to bottom as a modeling catalog reference, wherein the bridge structural tree is classified into an uplink structure, a downlink structure, a span structure, a subsection structure, a component type and a component according to bridge maintenance.
3. The bridge-oriented management and maintenance process structure hierarchical modeling method based on INVENTOR according to claim 1, wherein the method is characterized in that: the step 5 of adjusting the hierarchical relationship between the components which are not modeled in the hierarchy and the components with the hierarchy errors specifically includes:
and selecting components to be combined into the same hierarchy from the bridge structure tree in the INVENTOR software, performing upgrading or downgrading operation according to the hierarchy to which the currently selected components belong and the relative hierarchy level-to-level relation between the hierarchy to which the currently selected components belong after the hierarchy is adjusted, dragging the components in the bridge structure tree to perform relevant position adjustment, and storing the components as a iam component file to finish the hierarchy adjustment.
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