CN-122020801-A - BIM-based expressway intelligent calculation method and system

CN122020801ACN 122020801 ACN122020801 ACN 122020801ACN-122020801-A

Abstract

The invention relates to the field of computer aided highway engineering calculation, and discloses a highway intelligent calculation method and system based on BIM, comprising the following specific steps of creating highway engineering measurement modeling rules; the method comprises the steps of creating a mapping matching rule of a BIM model component decomposition structure EBS, an engineering quantity list structure BOQ and a project subsection item structure WBS, creating a component metering rule base, carrying out BIM modeling on a target project according to the metering modeling rule and giving a calculated quantity attribute and WBS attribute to the component, carrying out creation mode checking, calculated quantity attribute checking and WBS attribute checking on the target project BIM model, setting an engineering quantity list table style, embedding list codes corresponding to the component, metering rule identification and calculated engineering quantity data into corresponding components written into the BIM model in a structural attribute mode, presetting a No. 0 standing account standard format, forming reliable association between list information and model components, and fully playing the value of the BIM in integrated application of calculated quantity and cost.

Inventors

TANG JIANYONG
Fang Bingrui
Ke Bang
WU HAO
HUANG ZHENXIONG
ZHANG GAN
LI GUYUE
Tan chang
Xu Yashi

Assignees

湖北交投建设集团有限公司
深圳丰匠数科工程咨询有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. The expressway intelligent calculating method based on BIM is characterized by comprising the following specific steps of: s01, creating a highway engineering metering modeling rule for restricting the geometric type of a component in a target engineering BIM model, and defining the filling specification of component information depth, an algorithm quantity attribute field and a WBS attribute field to ensure that the geometric and attribute of the component can meet the requirements of the analysis to generate engineering quantity and can be matched with the engineering quantity list sub-item feature item and a 0-number standing book WBS structure tree; S02, creating mapping matching rules of a BIM model component decomposition structure EBS, an engineering quantity list structure BOQ and a project subsection item structure WBS, wherein the mapping matching rules at least comprise automatic mapping association of the EBS and BOQ based on text keywords of component layer names and/or attribute names and three-way association of components among the EBS, the BOQ and the WBS based on WBS attribute information of writing components; S03, building a component metering rule base, converting industry metering rules into structured machine-readable rules, binding the structured machine-readable rules with EBS component identifiers, calling the rule base when calculating the quantity, and executing deduction judgment and deduction calculation conforming to the industry metering rules on components with space intersection relations through Boolean operation; S04, BIM modeling is carried out on the target engineering according to the metering modeling rule, calculated quantity attributes and WBS attributes are given to the components, and normalized setting is carried out on layer names, attribute names and text keywords of the components according to the mapping matching rule; s05, checking a building mode, checking calculation quantity attributes and checking WBS attributes of the target engineering BIM model, generating a checking list for components which do not pass the checking, and automatically positioning the space position and attribute information of the corresponding components in modeling software; S06, after checking, setting a form style of an engineering quantity list, binding a component with BOQ sub-meshes based on a mapping matching rule of EBS and BOQ, calculating the engineering quantity of the component according to the component metering rule base, and outputting an engineering quantity list according to the form style; S07, embedding and writing the inventory codes corresponding to the components, the metering rule identifiers and the calculated engineering quantity data into the corresponding components of the BIM model in a structural attribute mode; S08 presets a standard format of the 0 # ledger, extracts WBS attribute of the component, the embedded list information and engineering quantity data, automatically matches the WBS attribute of the component with the WBS hierarchical structure of the 0 # ledger based on a WBS keyword matching algorithm, establishes a mapping relation, and automatically fills and derives the 0 # ledger achievement according to the ledger format.
2. The BIM-based highway intelligent computation method according to claim 1, wherein the component metering rule base uses EBS decomposition structures as a rule index frame and establishes rule entries for each EBS component unique identification EID; The rule item at least comprises a rule number RID, a rule version number Ver, an effective time Te, an applicable condition set Cond, a parameter set Param, a deduction priority Pr and an applicable metering object Type identifier Type; the parameter set Param at least comprises a geometric calculation precision threshold epsilon, a hole deduction threshold D0 and a mapping score threshold tau; The rule base sets trace field constraint, at least requires that each calculated quantity output engineering quantity result is associated with record RID, ver and Te, and can be reversely checked to a corresponding EID and component identification set participating in deduction; The dynamic updating mechanism comprises the steps of executing difference comparison on rule entries with the same RID and different Ver to determine a range to be updated, binding updated Cond and Param to corresponding EIDs in batches, reserving at least one version rule for tracing, and recording rule updating time, updater identification and modification log.
3. The BIM-based highway intelligent computation method according to claim 1, wherein the performing the deduction judgment and the deduction computation by the boolean operation includes performing the boolean operation on the intersecting members to obtain a geometric intersection and computing an intersection volume, which is determined by volume, area or length according to the metering object; setting a geometric calculation precision threshold epsilon, and judging that the intersection is invalid and not performing deduction when the intersection quantity is not more than epsilon; when the intersection quantity is larger than epsilon, calling a deduction rule bound with the deducted component EID, checking key parameters of the deducted component according to the applicable condition set Cond, executing Boolean difference operation when the check passes, deducting according to the difference quantity, and keeping the original engineering quantity when the check does not pass; when the same buckled member is intersected with a plurality of buckled members at the same time, the buckling priority Pr of the buckling is buckled from high to low in sequence, and the intermediate result after each buckling is updated in a cumulative way; The deduction process records traceability information, and at least comprises a deducted component identifier, an intersection quantity, an adopted RID and Ver, a deducted effective judgment result and a deducted net quantity result.
4. The BIM-based highway intelligent metering method according to claim 1, wherein the industry metering rule includes a hole deduction threshold rule and defines a hole equivalent size parameter D and a threshold D0; When D is not more than D0, the holes do not participate in engineering quantity deduction, and when D is more than D0, the holes are deducted according to the intersection quantity formed by the holes and the deducted component; the equivalent size parameter D of the hole is obtained by calculating geometrical parameters of the hole, wherein the geometrical parameters at least comprise at least one of hole diameter, hole short side, hole long side or hole cross-sectional area; the threshold D0 is used as a configurable parameter of a rule base to write Param and can be set to different values according to the Type of the component; The hole deduction result is written into a traceability field and at least comprises a hole component identifier, a D value, a D0 value, a deduction mark and an adopted RID and Ver.
5. The BIM-based highway intelligent computation method according to claim 1, wherein the mapping matching rule includes a keyword dictionary Dict, a matching weight parameter W, a matching score threshold τ, a matching priority Level, a Mutex and exception list ExList; Extracting a keyword set from the layer name and/or attribute name of the component, and matching and scoring the keyword set with the feature item keyword set of the candidate BOQ sub-order, wherein the scoring result is used for judging whether to establish mapping association of the EBS and BOQ; when the scores of the candidate BOQ sub-items are not smaller than a threshold tau, mapping association is established, and when a plurality of candidate BOQ sub-items simultaneously meet the threshold, a unique mapping result is determined according to the priority Level; Setting a unique hooking constraint, namely, except for the component types belonging to the exception list ExList, only allowing one BOQ sub-item code and one WBS node code to be hooked by the same component at the same time; When the same component is mapped to a plurality of BOQ sub-orders or a plurality of mutually exclusive WBS nodes defined by a Mutex relation table Mutex, outputting a conflict record and marking the component as 'to be rechecked' so as to block automatic summarization output; The conflict record at least comprises a component unique identifier, a candidate target list, respective scores, priorities, mutual exclusion basis, trigger time and processing state fields so as to meet the requirements of verifiability and traceability.
6. The BIM-based highway intelligent metric method of claim 1, wherein the model checking includes at least creation mode checking, metric property checking and WBS property checking; the creation mode check at least comprises whether the geometric type of the component accords with the limit of a metering modeling rule, whether the component has abnormal geometric such as non-closed body or selfing and the like, and whether the component meets the minimum metering scale threshold; the calculation attribute check at least comprises whether a necessary-to-fill calculation field is complete, whether a field type and a value range meet preset constraint, whether a measurement unit is consistent with a list sub-unit, and whether a key threshold parameter is inherited or filled correctly; the WBS attribute check at least comprises whether WBS codes exist, whether a coding level meets a level depth constraint parameter H, whether the coding and the component type meet consistency constraints and whether the unique hooking constraint is met; Outputting a check list and supporting automatic positioning of components which do not pass through in modeling software, wherein the check list at least comprises a component unique identifier, a problem type, a space position coordinate, a missing or abnormal field name, a current field value and a suggested repair rule entry reference; and recording a traceable field for checking the repair process, wherein the traceable field at least comprises the attribute difference before and after repair, the repair person identification and the repair time.
7. The BIM-based highway intelligent metric method of claim 1, wherein the engineering quantity inventory table style defines at least a field set, a field order, a field format constraint, and a unit of measure consistency constraint; establishing a reverse association index while outputting the engineering quantity list, so that the corresponding component set can be obtained by searching any list sub-item code and the engineering quantity list sub-item name; The component record of the reverse association index at least comprises a component unique identifier, a list sub-item code, an engineering quantity list sub-item name, an adopted metering rule identifier RID, a rule version number Ver, a key parameter abstract and a calculation result engineering quantity; Setting a unique hooking constraint check, namely outputting a hooking abnormal record and blocking a member participating in list summarization if a member in a non-exception list ExList corresponds to a plurality of list sub-item codes of the same member; When the inconsistent measurement units of the component and the inventory sub-items are detected, converting or outputting an inconsistent alarm according to a preset unit conversion table and blocking the sub-items from being automatically summarized; and each sub-project summary line record tracing field of the engineering quantity list at least comprises the number of components participating in summary, component identification list reference, rule version information and time stamp generation.
8. The intelligent expressway calculation method based on BIM according to claim 1, wherein the automatic generation of the 0 # ledger comprises the steps of establishing a Map of a component unique identifier-ledger WBS node, and automatically summarizing and filling the engineering quantity of the components under the same WBS node according to the Map; The 0 # ledger adopts a preset standard format, and the standard format at least comprises a WBS (wireless broadband standard) level field, a list sub-item field, a measurement unit field, an engineering quantity field and a source tracing field; the source tracing field at least comprises an association component set reference, a list sub-item code, a rule number RID, a rule version number Ver, a mapping rule version identifier and a generation timestamp; When the engineering quantity or the inventory information of any component changes, only executing engineering quantity increment update on the ledger record corresponding to the WBS node to which the component belongs, and synchronously updating an update time identifier and a source tracing field; when the mapping relation of the components changes, firstly executing mapping change verification and outputting a change list, wherein the change list at least comprises a change component identifier, an original WBS node, a new WBS node, a change reason and an effective time; and the account exporting process records and exports traceability information, and at least comprises an exporting format, an exporting file identifier, an exporting person identifier and an exporting time.
9. BIM-based highway intelligent calculation system is characterized by comprising: the rule configuration module is used for configuring a metering modeling rule, configuring an EBS/BOQ/WBS three-structure mapping matching rule and establishing a component metering rule base bound with an EBS component identifier; The model modeling and attribute management module is used for carrying out constraint modeling according to the metering modeling rule and carrying out batch assignment on the calculated quantity attribute and the WBS attribute, and normalizing the layer name and/or attribute name keyword of the component according to the mapping matching rule; the model checking module is used for executing the checking of the creation mode, the checking of the calculation quantity attribute and the checking of the WBS attribute, generating a checking list and driving modeling software to automatically position the non-passing component; The engineering quantity calculation and list generation module is used for completing the binding of the component and BOQ sub-orders based on the mapping matching rule, calling a component metering rule base to execute deduction judgment and engineering quantity calculation by combining with Boolean operation, generating and exporting an engineering quantity list according to a preset list form style, and writing list coding, metering rule identification and engineering quantity data into the corresponding component in a structural attribute; the 0 # ledger generation module is used for automatically matching the component WBS attribute with the 0 # ledger WBS hierarchical structure based on the WBS keyword matching algorithm, automatically filling and generating the 0 # ledger according to the ledger format and exporting the 0 # ledger; And the data storage and interaction module is used for storing rule data, model data, checking results, list data and ledger data in a centralized manner and providing a data interaction interface between the modules.
10. The BIM-based highway intelligent accounting system of claim 9, wherein the engineering quantity calculation and inventory generation module includes a rule-bound deduction calculation engine and inventory information write-back unit, wherein: The deduction calculation engine of the rule binding is used for calling the component metering rule base entry bound with the EBS component unique identifier EID by taking the EBS component unique identifier EID as an index, and judging the validity of the geometric interaction of the intersecting components based on the rule parameter threshold; when the validity judgment is met, performing Boolean intersection operation on the intersecting members to obtain an intersection and calculating an intersection quantity, and when rule application conditions are met, performing Boolean difference operation on the deducted members to obtain a deducted net quantity; The metering rule is formed according to related specifications and standards and comprises a calculation formula and a deduction rule; The list information write-back unit is used for writing the list sub-item code, the list sub-item name, the adopted metering rule number RID and rule version number Ver, the project quantity before deduction, the net quantity after deduction and the deduction traceability information after deduction into the structural attribute fields of the corresponding BIM components after binding the components with BOQ sub-items; And the 0 # standing book generating module establishes a mapping relation of 'component unique identification-standing book WBS node' based on the structural attribute field and the WBS attribute, only performs incremental update on the affected WBS node when the component engineering quantity or the inventory information changes, and outputs a traceability field containing rule version information.

Description

BIM-based expressway intelligent calculation method and system Technical Field The invention relates to the field of computer-aided highway engineering calculation, in particular to a highway intelligent calculation method and system based on BIM. Background The engineering quantity list and the No. 0 ledger of the traditional highway engineering are compiled, the engineering quantity is extracted by means of manual identification based on the construction drawing of a design institute, and manual classification and summarization are carried out through form tools such as Excel/WPS (web page service) and the like by combining engineering quantity metering rules in a bid-drawing file and the requirements of the engineering quantity list and the No. 0 ledger format. Because the number of the sub-items of the engineering list of the expressway is large, the professional intersection is strong, and different people have differences in understanding the drawing and the metering rule, the calculation deviation is easy to generate. In order to ensure the accuracy of the engineering quantity list and the 0 # standing book, a great amount of time is often required to be invested by a checking staff to repeatedly read, calculate and summarize, so that the 0 # standing book is low in generation efficiency, poor in coordination and high in error risk, and disputes of multiple parties on the engineering quantity are further caused. Along with development and application of BIM technology, the main stream BIM modeling software (such as OpenRoads Designer) of highway engineering can directly output engineering quantity forms of main materials, but the existing output results generally have the problems of scattered form structures, non-uniform data caliber, poor reusability and the like, and more importantly, the output engineering quantity is usually the real quantity of a model component, is not calculated strictly according to highway industry metering rules, and common rules such as hole deduction, cross part deduction, priority and the like are not fully considered, so that the BIM output engineering quantity is not matched with the current highway industry metering rules, and the consistency and auditability of inventory programming and metering payment work are affected. In addition, when the cost management and control is performed based on the BIM, the conventional method generally needs to manually input or maintain engineering quantity list information into the BIM model in a mode of component attribute, and then perform cost analysis and management and control based on the model containing the cost attribute. The method is complex in operation, easy to introduce data errors, difficult to form reliable association between the inventory information and the model member, and incapable of fully exerting the value of BIM in the integrated application of calculation and cost. Disclosure of Invention Based on the expression, the invention provides the expressway intelligent calculating method and system based on the BIM, which realize the rapid generation of the engineering quantity list and the 0 # standing book based on the BIM model, improve the efficiency of the engineering quantity list and the 0 # standing book, form the reliable association between the list information and the model components, and fully exert the value of the BIM in the integrated application of calculating the quantity and the manufacturing cost. On one hand, the technical scheme for solving the technical problems is as follows, namely, the intelligent expressway calculating method based on BIM comprises the following specific steps: s01, creating a highway engineering metering modeling rule for restricting the geometric type of a component in a target engineering BIM model, and defining the filling specification of component information depth, an algorithm quantity attribute field and a WBS attribute field to ensure that the geometric and attribute of the component can meet the requirements of the analysis to generate engineering quantity and can be matched with the engineering quantity list sub-item feature item and a 0-number standing book WBS structure tree; S02, creating mapping matching rules of a BIM model component decomposition structure EBS, an engineering quantity list structure BOQ and a project subsection item structure WBS, wherein the mapping matching rules at least comprise automatic mapping association of the EBS and BOQ based on text keywords of component layer names and/or attribute names and three-way association of components among the EBS, the BOQ and the WBS based on WBS attribute information of writing components; S03, building a component metering rule base, converting industry metering rules into structured machine-readable rules, binding the structured machine-readable rules with EBS component identifiers, calling the rule base when calculating the quantity, and executing deduction judgment and deduction calculatio