WO2020006984A1

WO2020006984A1 - Bim technology-based comprehensive aid decision-making method for engineering construction organization scheme

Info

Publication number: WO2020006984A1
Application number: PCT/CN2018/120151
Authority: WO
Inventors: 刘飞虎; 赵立; 廖勇
Original assignee: 成都希盟泰克科技发展有限公司
Priority date: 2018-07-04
Filing date: 2018-12-10
Publication date: 2020-01-09
Also published as: CN108932383B; CN108932383A

Abstract

A BIM technology-based comprehensive aid decision-making method for an engineering construction organization scheme, comprising the following steps: S1, establishing a comprehensive condition of current engineering construction, and obtaining BIM data in the engineering construction; S2, establishing an engineering construction process flow library according to the BIM data, and forming construction organization scheme logical data according to a construction process flow required for engineering; S3, performing optimization operation according to resources, progress, and actual construction period of engineering construction; and S4, performing, according to the engineering construction BIM 5D simulation model formed after the optimization operation, statistical analysis on engineering construction data, to form an early-warning mechanism.

Description

Comprehensive auxiliary decision-making method for engineering construction organization scheme based on BIM technology

Technical field

The invention relates to the field of BIM computer-aided construction design, in particular to a comprehensive auxiliary decision-making method for engineering construction organization schemes based on BIM technology.

Background technique

At present, there is no scientific and reasonable decision-making method to organize and manage the construction scheme of large-scale civil engineering before and during construction. With the increasing requirements and expectations of project investors and owners for project construction, and the complexity and multi-participation of project construction, whether the project construction organization plan is scientific and reasonable directly affects the quality of the project construction process and the duration of the project construction , Also affects the economic benefits of construction enterprises. There are many problems in the current project construction organization:

Existing engineering construction organization plans to evaluate the working hours of relevant construction sites based on construction experience, without comprehensively considering the impact of engineering construction technology and construction environment, and the large number of large-scale civil engineering construction sites and the staggered construction, resulting in complex construction organization planning, Low accuracy.

At present, project managers use documents to plan and design construction organization schemes. Construction resources (teams, equipment, and materials) cannot be accurately calculated and evaluated, which leads to a low degree of participation of construction resources in the construction organization plan, which seriously affects later construction of the project. risk.

Current construction managers use construction experience and document plans to design construction organization plans, organize construction experts, and senior leaders to approve and make decisions. Among them, subjective judgments make it impossible to comprehensively evaluate and verify construction organization plans.

During the construction of large-scale civil engineering, various conditions often occur, resulting in the actual construction of the project cannot be carried out in accordance with the proposed construction organization plan, and the form reached by the existing construction organization plan does not have flexibility, verification and iterative optimization, leading to construction The organization plan does not meet the requirements of actual project construction changes.

The construction organization plan itself is the accumulation of knowledge and experience of the project construction by the enterprise. Similar to the project or a brand new project, the enterprise can use the construction knowledge and experience to evaluate and judge the existing project. Good tools for accumulating construction organization schemes, so that the accumulation and reuse of knowledge and experience of construction organization is low.

Summary of the invention

In order to achieve the above object of the present invention, the present invention provides a comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology, which is characterized by including the following steps:

S1. Establish comprehensive conditions for current project construction, and obtain BIM model data during project construction;

S2. Establish the engineering construction process library based on the BIM model data, and form the logical data of the construction organization plan according to the construction technological process required by the project;

S3. Perform optimization calculations according to the resources, schedule and actual construction period of the project;

S4. Based on the engineering construction BIM 5D simulation model formed after the optimization calculation, statistical analysis is performed on the engineering construction data to form an early warning mechanism.

The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology, preferably, the S1 includes:

S1-1. Establish the current work conditions, environmental conditions, the conditions for the proposed construction resources, collaborative decision-making conditions, and progress warning conditions;

S1-2. Establish the engineering division structure according to the sub-item structure of the project, and obtain the BIM model data of the engineering construction.

According to the comprehensive auxiliary decision-making method for a project construction organization scheme based on BIM technology, preferably, the S2 includes:

S2-1. Establish a project construction process library, and combine the construction experience of the enterprise with existing construction resources to form a standard construction man-hour system;

S2-2, divide the structure and construction process according to the project to form the basic logical data of the construction organization plan with the construction process;

S2-3. According to the construction division structure, combined with the construction specifications and requirements, a logical data of the construction organization plan with the construction sequence is formed.

According to the comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology, preferably, the S3 includes:

S3-1. Compile and calculate the schedule of the construction organization according to the construction schedule estimation algorithm based on the balance of the construction resources of the project;

S3-2. Optimize the target of the construction organization schedule based on the construction progress compression algorithm based on the construction target of the project;

S3-3. Iterative calculation of the progress schedule of the construction organization according to the iterative algorithm of construction schedule optimization based on the actual conditions of the project construction.

Preferably, the method for comprehensively assisting decision-making of an engineering construction organization scheme based on BIM technology, the S4 includes:

S4-1, according to the construction organization schedule prepared and calculated after the optimization calculation, combined with the engineering construction BIM model data, the engineering BIM 5D construction organization process virtual simulation is performed;

S4-2. Perform statistical analysis of construction resources according to the determined construction organization plan;

S4-3. According to the early warning conditions for the construction progress of the project, and in combination with the actual progress of the construction process, an early warning mechanism for the construction progress of the project is formed.

S1-A, establishing time parameter data of several shifts in the current construction period;

S1-B, establishing time parameter data of a specific construction state of the current project area;

S1-C: Establish the comprehensive parameter data of the construction team; establish the comprehensive parameter data of the construction equipment; establish the comprehensive parameter data of the construction materials;

S1-D, establish collaborative decision-making condition data of construction organization participants, roles, and permissions;

S1-E, establish comprehensive parameter data of engineering early warning.

S2-A: Divide the engineering structure and form information data according to the sub-item structure of the project, and execute S2-B;

S2-B, the design BIM model is established according to the structure of the sub-item and the construction BIM model is used to split the construction BIM model to form the construction BIM model data.

S3-A, sorting the construction process parameter data according to the construction type of the project, wherein the construction process parameter data includes: process type, process name, step name, and parameter logical relationship of the steps;

S3-B, establish the comprehensive parameter data of the construction team; establish the comprehensive parameter data of the construction equipment; establish the comprehensive parameter data of the construction materials and set the parameter data of the construction process steps of the project, among which the parameter data of the engineering construction process steps include : Construction material, construction team, construction work team, construction equipment parameter data, and according to the set construction material, construction team, construction work team, construction equipment parameter data, form the working hours system parameters under the rated construction man-hours and rated construction quantities mode data.

S4-A, according to the type of construction process, set up a construction engineering structure that conforms to it, and form the logical relationship data between the process and the construction object;

S4-B, according to the logical relationship between the construction engineering structure and the process, set the corresponding engineering process corresponding to each engineering structure to pay attention to the actual quantity parameter data of the construction material.

In summary, since the above technical solution is adopted, the beneficial effects of the present invention are:

For the accumulation of construction knowledge and experience of the construction organization scheme of the present invention, the corresponding scene parameters are classified and optimized by setting corresponding scene parameters to optimize the construction organization of similar projects or brand new projects. Enterprises can learn from the construction knowledge and experience to carry out existing projects Good evaluation and judgment, ensure that the construction period is completed efficiently and on time, improve production efficiency, and save manpower and material costs.

Additional aspects and advantages of the present invention will be given in part in the following description, part of which will become apparent from the following description, or be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic flowchart of the present invention;

Figure 2 is a schematic diagram of the basic parameters of the project construction period;

Figure 3 is a schematic diagram of time parameters of high temperature, flood season, freezing period and special holidays in the area where the project is located;

Figure 4 is a schematic diagram of the parameters of the engineering construction team, equipment, and materials;

Figure 5 is a schematic diagram of the parameters, participants, roles and permissions of the construction organization;

Figure 6 is a schematic diagram of the parameters of the project construction organization early warning;

Figure 7 is a schematic diagram of the structural parameter data of the sub-items of the construction organization of the project;

Figure 8 is a schematic diagram of the engineering construction process parameter data;

Figure 9 is a schematic diagram of the parameter data of the engineering construction process steps;

Figure 10 is a schematic diagram of the logical relationship between the engineering construction process and the construction object;

FIG. 11 is a logical data diagram of the sub-item structure of the project shown and hidden during construction;

Figure 12 is the milestone parameter data of the sub-item structure of the project;

Figure 13 is the construction progress calculation parameter data;

Figure 14 shows the data of compression calculation parameters for construction progress.

detailed description

Hereinafter, embodiments of the present invention will be described in detail. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, and should not be construed as limiting the present invention.

As shown in FIG. 1, the present invention provides a comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology, including the following steps:

S1. Establish the working conditions, environmental conditions of the current project construction, the conditions of the proposed input construction resources (teams, equipment, materials), collaborative decision-making conditions, and progress warning conditions;

S2. Establish the engineering division structure according to the sub-item structure of the project, and obtain the BIM model data of the engineering construction;

S3. Establish the engineering construction process library, and combine the construction experience of the enterprise and the existing construction resources to form a standard construction man-hour system;

S4. Divide the structure and construction process according to the project to form the basic logical data of the construction organization plan with the construction process;

S5. According to the construction division structure, combined with the construction specifications and requirements, form a logical data of the construction organization plan with the construction sequence;

S6. Compile and calculate the schedule of the construction organization according to the construction schedule estimation algorithm based on the balance of construction resources;

S7. Optimize the schedule of the construction organization schedule according to the construction schedule compression algorithm based on the construction goals of the project;

S8. Iterative calculation of the progress schedule of the construction organization according to the iterative algorithm of construction schedule optimization based on the actual conditions of the project construction;

S9. Compile the construction organization schedule according to the intelligent algorithm, and combine the engineering construction BIM model data to perform a virtual simulation of the engineering BIM 5D construction organization process;

S10. Perform statistical analysis of construction resources according to the determined construction organization plan;

S11. According to the conditions for early warning of the construction progress of the project, combined with the actual progress of the construction of the project, an early warning mechanism for the construction progress of the project is formed.

S1-1. Establish time parameter data of several shifts in the current construction period;

S1-2, establishing time parameter data of a specific construction state of the current project area;

S1-3. Establish the comprehensive parameter data of the construction team; establish the comprehensive parameter data of the construction equipment; establish the comprehensive parameter data of the construction materials;

S1-4. Establish collaborative decision-making condition data of construction organization participants, roles, and permissions;

S1-5. Establish comprehensive parameter data for engineering early warning.

Preferably, as shown in FIG. 1, the time parameter data of the current construction period of S1-1 includes:

Set the parameter data of the name of the shift ClasNam, set the parameter data of the one-shift start ONEClasON, set the parameter data of the one-shift close ONEClasOFF, set the parameter data of the two-shift start TWOClasON, and set the two-shift close TWOClasOFF The parameter data of THRClasON which is started in three shifts and the parameter data of THRClasOFF which is turned off in three shifts are set; the time parameter model of the normal construction period of the project construction is formed; the parameter data is imported into the database.

Preferably, the basic parameters of the current construction period of S1-1 include:

Set parameter data for ONEClasTS (time) at the start time of one shift, set parameter data at ONEClasTE (time) at the end of one shift, set parameter data for ONEClasTRS (time) at the start of one shift Parameter data of ONEClasTRE (time) during the rest period of the shift; import the parameter data into the database;

Set the parameter data of the start time period TWOClasTS (time) of the two shifts, set the parameter data of the end time period TWOClasTE (time) of the two shifts, set the parameter data of the start period TWOClasTRS (time) of the two shifts, and set two Parameter data of TWOClasTRE (time) during the rest period of the shift; import the parameter data into the database;

Set the parameter data of THRClasTS (time) for the three-shift start period, set the parameter data of THRClasTE (time) for the three-shift end period, set the parameter data of THRClasTRS (time) for the three-shift rest start period, set three Parameter data of THEClasTRE (time) during the rest period of the shift; import the parameter data into the database;

Preferably, as shown in FIG. 2, the time parameter data of the high temperature, flood season, freezing season, and special holidays of the area where the current project S1-2 is located includes:

Set the high-temperature startup HIClasON parameter data, set the high-temperature shutdown HIClasOFF parameter data; set the flood season startup FLClasON parameter data, set the flood season shutdown FLClasOFF parameter data; set the freezing season start FRClasON parameter data, and set the freezing period. Close the parameter data of FRClasOFF; set the parameter data of starting SPON for special holidays, set the parameter data of closing SPOFF for special holidays; import the parameter data into the database.

Preferably, the basic parameters of the high temperature, flood season, freezing period and special holidays of the area where the current project is located in S1-2 include:

Set the parameter data of the high temperature start date segment HIClasTS (date), set the parameter data of the high temperature end date segment HIClasTE (date); set the parameter data of the start date segment FLClasTS (date) of the flood season, and set the end date segment FLClasTE ( date), set the parameter data of the flood season effective time FLVAT (h); set the parameter data of the start date period FRClasTS (date) of the freezing period, set the parameter data of the end date period FRClasTE (date) of the freezing period; set Set the parameter data of SPTS (date) for the start time period of special holidays, and set the parameter data of SPTE (date) for the end time period of special holidays; import the parameter data into the database.

Preferably, as shown in FIG. 3, in S1-3, the parameter data of the group type, the group name, and the number of groups of the construction team are established; and the equipment group, the device category, the device name, the device model, and the number of equipment parameters of the construction equipment are established Data; The data of the material group, material category, material model, and material unit of the construction material are established;

Establish the parameter data of the TEACat class of the construction team, the parameter data of the team name TEANam of the construction team, the parameter data of the number of teams TEANum of the construction team, the parameter data of the equipment group EQUClas of the construction equipment, and the equipment of the construction equipment Parameter data of category EQUCat, parameter data of construction equipment equipment name EQUNam, parameter data of construction equipment equipment model EQUTyp, parameter data of construction equipment equipment number EQUNum; parameter data of construction material material group MATClas , Establish the parameter data of the material category MATCat of the construction material, establish the parameter data of the material type MATTyp of the construction material, establish the parameter data of the material unit MATUni of the construction material; import the parameter data into the database.

Preferably, as shown in FIG. 4, the parameter data of the collaborative decision conditions for establishing construction organization participants, roles, and permissions in S1-4 include:

Establish parameter data of the login name USESysNam of the participants of the construction organization, establish parameter data of the name USENam of the participants of the construction organization, establish parameter data of the last name USEFam of the participants of the construction organization, and establish parameter data of the employee number USEPart of the participants of the construction organization, Establishing parameter data of the engineering construction organization participants directly under the superior USEHigh, establishing parameter data of the email address USEEma of the engineering construction organization participants, establishing parameter data of the phone number USEPho of the engineering construction organization participants, and establishing parameter data of the mobile phone USETel of the participants of the construction organization, Establish the parameter data of USEFax faxed by the participants of the engineering construction organization, and establish the parameter data of the USEPAg system page of the participants of the engineering construction organization; import this data into the database.

Establish parameter data for the name ROLNam of the construction organization management role, establish parameter data ROLUse for the name of the construction organization management member, establish parameter data for the description of the ROLEs of the construction organization management role, and establish the ROLTS (date) for the start period of the role of the construction organization management role Parameter data, establish the parameter data of the end time period ROLTE (date) of the construction organization management role; import this data into the database.

Establish the parameter data of the construction organization management authority name LIMNam, establish the parameter data of the construction organization management authority read authority LIMEdi, establish the parameter data of the construction organization management authority read authority LIMRea, establish the construction organization management authority delete authority LIMDel Parameter data; import the parameter data into the database.

Preferably, as shown in FIG. 5, in S1-5, the parameter data for establishing a project warning type, a warning notification role, a warning notification content, and a warning notification time include:

Establish the parameter data of EAROn for engineering early warning, set the parameter data of EAROff for engineering early warning, establish parameter data of EARTyp for engineering early warning, establish parameter data of EARCon for engineering early warning notification, and establish parameter data of EARTS (Time) for engineering early warning notification. , Establish parameter data of engineering alarm notification end time EARTE (Time), establish parameter data of engineering alarm time deviation EARTime (day), establish parameter data of engineering alarm object role EARUse, and import the parameter data into the database.

Preferably, the S2 further includes:

S2-1, divide the engineering structure and form information data according to the sub-item structure of the project, and execute S2-2;

S2-2 The construction BIM model is split according to the design BIM model established by the project sub-structure to guide the construction drawing of the project to form the construction BIM model data.

Preferably, as shown in FIG. 6, the structure parameter data of the current engineering sub-item of S2-1 includes:

Establish the parameter data of the engineering sub-item structure code PCod, establish the parameter data of the engineering sub-item structure type PTyp, and establish the parameter data of the engineering sub-item structure description PDes; based on S1-3, set the construction material of the engineering sub-item structure. Parameter data of the material category MATCat, set parameter data of the material model MATTyp of the construction material of the sub-item structure, establish parameter data of the engineering quantity PAmo of the construction material of the sub-item structure; import the parameter data into the database.

Preferably, the engineering construction BIM model of S2-2 includes:

The construction BIM model is split according to the design BIM model established by the project sub-structure to guide the construction drawing of the project to form a construction BIM model;

As shown in Figure 2, according to S2-1, the project BIM model is classified into the construction BIM model according to the structural data definition of the sub-items of the project, and the BIM data of the project construction organization planning and design is formed.

Preferably, the S3 further includes:

S3-1. Arrange the construction process parameter data according to the construction type of the project, where the construction process parameter data includes: process type, process name, step name, and parameter logical relationship of the steps;

S3-2, based on S1-3, set the process parameter data of each engineering construction process, among which the process parameter data of the engineering construction process includes: construction material, construction team, construction team, construction equipment parameter data, and according to the set construction materials , Construction team, construction work team, and construction equipment parameter data to form the rated construction man-hours and rated construction quantity model data.

Preferably, as shown in FIG. 7, the construction process parameter data of the S3-1 project includes:

Establish the parameter data of the engineering construction process category PROTyp, establish the parameter data of the engineering construction process name PRONam, establish the parameter data of the engineering construction process code PROCod, establish the parameter data of the engineering construction process step name PROSTEPNam; establish the engineering construction process logical step tightly Before the parameter data of PROSTEPPre, establish the parameter data of PROSTEPTig closely related to the logic of the engineering process steps; import the parameter data into the database.

Preferably, as shown in FIG. 8, the parameter data of the construction process steps of the S3-2 project includes:

Based on S1-1 and S3-1, establish the parameter data of the engineering construction process step PROSTEPClasT; establish the parameter data of the engineering construction process start step PROSTEPSta, establish the parameter data of the engineering construction process end step PROSTEPEnd; set the parameter data Import the database.

The first level is based on S1-3, establishing parameter data of the quantitative type PROSTEPTypV of the engineering construction process steps; establishing parameter data of the engineering step equipment PROSTEPEQU, and establishing parameter data of the engineering construction process step equipment normally input into PROSTEPEQUMin, Establish the parameter data for the maximum input of PROSTEPEQUMax for the engineering construction process step equipment; establish the parameter data for the PROSTEPTEA for the engineering construction process step group, establish the parameter data for the minimum input for PROSTEPTEAMin for the engineering construction process step group, and establish the maximum input for the PROSTEPTEAMax for the engineering construction process step group Parameter data of the engineering construction process step material PROSTEPMAV, parameter data of the engineering construction process step material rated construction amount PROSTEPMATValV, establishment of the engineering construction process step material construction sequence PROSTEPOrd parameter data, establishment of the engineering construction process The parameter data of the optimistic rated man-hour PROSTEPTgV (h) of the material construction amount of the working steps, the establishment of the parameter data of the PROSTEPTbV (h) pessimistic man-hours of the material construction of the engineering construction process step parameters Nominal amount of construction work process step process material most likely rated work PROSTEPTpV (h) of the parameter data; the parameter data into the database.

The second level: establish the parameter data of the project construction process step timing type PROSTEPTypT, establish the project construction process step timing rated working hours PROSTEPTT parameter data; import this parameter data into the database.

Preferably, the S4 further includes:

S4-1. According to the type of construction process, set up a construction engineering structure that conforms to it, and form the logical relationship data between the process and the construction object;

S4-2. According to the logical relationship between the construction engineering structure and the process, set the actual engineering parameter data of the construction materials corresponding to the process concerned with the construction process.

Preferably, the logical relationship data between the S4-1 process and the construction object includes:

As shown in FIG. 9, based on S2-1, S2-2, and S3-1, the logical relationship data between the construction process and the construction object is established; the parameter data is imported into the database.

Preferably, the S5 further includes:

S5-1, on the basis of S4-1, according to the construction characteristics of the project and the planned construction sequence, carry out the construction setting structure parameter data, task overlap relationship and time setting parameter data of the construction structure to form a construction organization plan Logic data setting parameter data;

S5-2, on the basis of S5-1, according to the construction characteristics, combined with the engineering construction BIM model data, set the construction engineering structure display and hidden logical data;

S5-3, according to the characteristics of the project, based on S5-1, set the parameter data of the project construction milestones.

Preferably, the setting parameter data of the immediately preceding relationship and time of the sub-item structure of the S5-1 project includes:

As shown in FIG. 10, the project step-by-step relationship scheme CONStepPro parameter data is established, the project step-by-step CONStepImm parameter data is established, the project step-by-step CONStepFol parameter data is established, and the engineering step is established. Partial item structures are closely connected to each other. The task overlap relationship is completed-complete CONStepFF, complete-start CONStepFS, start-start CONStepSS, start-complete CONStepSF parameter data, and establish the tasks between the structure of the partial item structure immediately before and after the structure. Overlap relationship time CONStepT (h) parameter data; import the parameter data into the database.

Preferably, on the basis of S5-1, the S5-2 combines the engineering construction BIM model data, and sets the logical data of the project sub-item structure to be displayed and hidden during the construction process including:

As shown in FIG. 11, the initial display state of the construction of the sub-item structure is established by the COMVisSho parameter data, and the initial hidden state of the construction of the sub-item structure is established by the CONVisHid parameter data. Structural object CONStepImmRel parameter data, to establish the display status of the structure object affected by the construction of the sub-item structure before the construction step CONStepImmRelSho parameter data, to establish the hidden status of the structure object of the sub-item structure to be affected by the construction step CONStepImmReHid parameter data; establish the engineering sub-section The project structure's CONStepFolRel parameter data affected by the construction of the project structure, to establish the display status of the structure object affected by the engineering construction of the sub-item structure, and the CONStepFolRelSho parameter data, to establish the hidden status of the structure object's affected construction engineering, the sub-item structure. CONStepFolReHid parameter data; import the parameter data into the database.

Preferably, the parameter data for setting the construction milestone of the S5-3 project sub-item structure includes:

As shown in FIG. 12, on the basis of S2-1, S5-1, and S5-2, the parameter data of the milestone CONStepMil of the sub-item structure of the project is established; the parameter data is imported into the database.

Preferably, the S6 further includes:

S6-1, establishing the parameter data of the construction schedule calculation plan for the construction target of the project;

S6-2. On the basis of S6-1, compile and calculate the schedule of the construction organization according to the construction progress estimation algorithm based on the balance of engineering construction resources;

This compilation calculation includes:

First, obtain the actual construction progress information and the original construction network diagram, which mainly include the completed construction unit, the progress percentage of the construction unit under construction, represented by w _i , i represents the i-th construction unit under construction, and Construction units that have not yet started construction; the "original construction network diagram" includes the logical relationships between the construction units that were defined before construction (including the immediate and post-order logical relationships, which can be specifically divided into completed after completion (FS), (SS), post-start (SF), post-completion (FF) four logical relationships) and the planned construction time T _{i of} each construction unit, indicating the planned construction time of the i-th construction unit;

Second, define the set of construction units to be controlled: the "completed" set is used to store construction units that have completed construction, the "in progress" set is used to store construction units that have started construction but have not yet completed construction, and the "not yet started" set is used to Store construction units that have not yet started construction, and place each construction unit in the corresponding collection;

In the next step, a new network diagram is constructed based on the set to which the construction unit belongs. The main processes include:

The first step is to remove all construction units in the set "Completed";

The second step is to update the planned time of all construction units in the set "in progress" to T ' _i = (1-w _i ) T _i ; T' _i is the updated construction unit planning time, and T _i is the base construction The planned time of the unit, w _i is the time parameter, and the subscript i is a positive integer;

The third step is to set the starting node of the new network graph;

The fourth step is to establish a logical relationship of FS = 0 between all the construction units in the set "in progress" and the starting node;

In the fifth step, for the construction units in the collection "not yet started", if the construction unit immediately before it is in the collection "completed", according to the original network diagram, make the construction unit establish the same logical relationship with the starting node. The construction unit immediately before it is in the collection "in progress" or "not yet started", and retains the logical relationship in its original network diagram; so far, the establishment of a new network diagram has been completed;

Finally, according to the new network diagram, the current time, and the planned completion time of the project, other construction planning methods are used to obtain new construction plans for construction units that have not yet been completed.

As shown in FIG. 13, the DefcomPro parameter data of the progress calculation scheme, the ProTypStr parameter data of the construction progress calculation start mode, the ProTypEnd parameter data of the construction progress calculation completion mode, the ComProStrTim (date) parameter data of the construction progress calculation start time, and the construction progress are established. Calculate the end time ComProEndTim (date) parameter data; import the parameter data into the database.

Preferably, in S6-2, the construction organization schedule plan is calculated based on a construction progress estimation algorithm based on engineering construction resource balance.

Preferably, the S7 further includes:

S7-1: the unit step size of the computing resource database;

S7-2: Obtain the consumption U _i (t) of each resource in each unit time, where i represents the i-th resource and a total of I resources; t represents the t-th unit time and a total of T unit times;

S7-3: Find the average consumption of each resource

S7-4: Normalize the average consumption of each resource to get the unit step size.

Where U _i represents the unit step size of each resource,

Represents the average consumption of each resource

The largest element.

S7-5: Increase the amount of resources by 1 unit step and calculate the duration;

S7-6: Determine whether the construction period is shorter than the target construction period given by the construction unit. If it is, go to step S7-7; if not, go to step S7-5;

S7-7: Screen construction units that can reduce resource allocation;

S7-8: Reduce the resource allocation of the construction units that can reduce the resource allocation one by one, and calculate the total construction period;

S7-9: Determine whether to continue to reduce the resource allocation of any construction unit. The total construction period will be longer than the target construction period. If yes, go to step S7-10; if not, go to S7-7;

S7-10: Output the construction plan and current resource allocation; execution is complete.

Preferably, the parameter data of the S7-1 based on S6-2 to establish a compression plan for the construction progress of the project includes:

As shown in FIG. 14, the DefComProCon parameter data of the construction schedule compression scheme is established, and the DefComProConTim (date) of the construction schedule compression target is established; the parameter data is imported into the database.

Preferably, in S7-2, the target optimization calculation of the construction organization schedule is performed according to the construction progress compression algorithm based on the construction target of the project.

Preferably, the S8 includes: S8, performing an iterative calculation of the progress schedule of the construction organization according to a construction schedule optimization and iterative algorithm based on actual conditions of the project construction;

First obtain the construction plan to obtain the ES, LS and TF parameters of each construction unit; where ES represents the earliest allowed start time of the construction unit under the current construction logic; LS represents the construction unit's allowed start time under the current construction logic The latest start time; TF represents the difference between the construction unit ES and LS.

Secondly define the collection of construction units, including the following four collections: "Done" collection, that is, the completed collection; storage of construction units that have been planned and completed at the current planning time; "Doing" collection, that is, the collection that is being executed, is stored in Construction units that are in progress at the planning time; "CanDo" collections, which are sets that can be executed, are stored at the ES that reached the construction unit at the planning time, indicating the earliest start time of the construction unit, and construction units that can be started waiting for resource allocation; "ToDo" collection, which is about to be executed, stores construction units that have not yet reached the task ES and do not yet have the starting conditions.

Further define the priority of the construction unit, as follows: 1. According to the size of the TF of each construction unit, the smaller the TF, the higher the priority, the priority is a natural number; 2. When the TF is the same, the construction unit with a smaller ES has priority The higher the level; 3. The construction unit with a smaller construction unit number has higher priority when the ES is the same. TF represents the difference between the earliest start time and the latest start time of the construction unit;

Next, the resource allocation of each construction unit is adjusted to the highest as the initial solution according to the process, where the process defines the construction time required for each construction unit to complete the unit amount of work under different resource allocation situations.

Then, determine if there are tasks that do not meet the resource limits and make repeated adjustments to the construction plan according to the following steps:

The first step is to put all construction units into the "ToDo" collection, and set the starting point of time t = 0;

In the second step, the time t is increased by a unit time Δt, that is, t = t + Δt;

The third step is to remove the completed construction unit from the "Doing" collection and put it into the "Done" collection;

The fourth step is to scan whether the ES parameters of the construction units in the "ToDo" collection are equal to the current time t. If so, the construction units that meet the above conditions are placed in the "CanDo" collection, and the rest that do not meet the conditions are left in the "ToDo" collection. ;

The fifth step is to sort all construction units in the "CanDo" set at the current moment according to the "priority ordering rule";

The sixth step is to allocate resources for each construction unit in the "CanDo" set from the total amount of resources in accordance with the order arranged in step 5. If all the construction units in the "CanDo" set can be allocated sufficient resources, skip Go to step eight; otherwise go to step seven;

The seventh step is to determine whether the current time t is greater than or equal to the LS parameters of the construction units that cannot be allocated sufficient resources. If so, output all construction units in the set "Doing" and "CanDo"; Go to the second step

The eighth step is to determine whether all construction units have entered the "Done" collection. If so, output a construction plan that meets the resource constraints. If not, skip to the second step.

After the construction plan is output, the calculation is completed.

Preferably, the S9 further includes:

S9-1, based on the data calculated by the intelligent algorithms of S6 and S7, perform engineering BIM 5D (BIM model is 3D + construction resources 1D + construction schedule 1D) virtual simulation of the construction process, intuitively analyze the feasibility of the project construction organization plan;

S9-2, based on the result data calculated by S6 and S7 intelligent algorithms, perform two simulations of engineering BIM 5D construction process virtual simulation simulation, visually analyze and compare the construction organization scheme of the project, so as to carry out merit selection analysis and set the final project Determined construction organization plan.

The S9 includes: performing a virtual simulation of the engineering BIM 5D construction organization process according to the calculated construction organization schedule and combining the engineering construction BIM model data;

Preferably, the S10 further includes:

S10-1. According to the final construction organization plan, select the statistical analysis period and construction time period for statistical analysis of construction resources, and form a construction material plan icon or chart;

S10-2. According to the final construction organization plan, select statistical construction structure objects for statistical analysis of construction resources, and form a construction material plan icon or chart.

Preferably, the S11 further includes:

S11-1, according to the actual construction progress of the project, feedback on the progress of the construction organization plan, execute S1, combine the types and roles of early warning notifications, and deliver the contents of the early warning notifications via SMS.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present invention, The scope of the invention is defined by the claims and their equivalents.

Claims

A comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology, which is characterized in that it includes the following steps:

S1. Establish comprehensive conditions for current project construction, and obtain BIM model data during project construction;

S2. Establish the engineering construction process library based on the BIM model data, and form the logical data of the construction organization plan according to the construction technological process required by the project;

S3. Perform optimization calculations according to the resources, schedule and actual construction period of the project;

S4. Based on the engineering construction BIM 5D simulation model formed after the optimization calculation, statistical analysis is performed on the engineering construction data to form an early warning mechanism.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1, wherein the S1 comprises:

S1-1. Establish the current work conditions, environmental conditions, the conditions for the proposed construction resources, collaborative decision-making conditions, and progress warning conditions;

S1-2. Establish the engineering division structure according to the sub-item structure of the project, and obtain the BIM model data of the engineering construction.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1, wherein the S2 comprises:

S2-1. Establish a project construction process library, and combine the construction experience of the enterprise with existing construction resources to form a standard construction man-hour system;

S2-2, divide the structure and construction process according to the project to form the basic logical data of the construction organization plan with the construction process;

S2-3. According to the construction division structure, combined with the construction specifications and requirements, a logical data of the construction organization plan with the construction sequence is formed.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1, wherein the S3 comprises:

S3-1. Compile and calculate the schedule of the construction organization according to the construction schedule estimation algorithm based on the balance of the construction resources of the project;

S3-2. Optimize the target of the construction organization schedule based on the construction progress compression algorithm based on the construction target of the project;

S3-3. Iterative calculation of the progress schedule of the construction organization according to the iterative algorithm of construction schedule optimization based on the actual conditions of the project construction.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1, wherein the S4 comprises:

S4-1, according to the construction organization schedule prepared and calculated after the optimization calculation, combined with the engineering construction BIM model data, the engineering BIM 5D construction organization process virtual simulation is performed;

S4-2. Perform statistical analysis of construction resources according to the determined construction organization plan;

S4-3. According to the early warning conditions for the construction progress of the project, and in combination with the actual progress of the construction process, an early warning mechanism for the construction progress of the project is formed.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1 or 2, wherein S1 comprises:

S1-A, establishing time parameter data of several shifts in the current construction period;

S1-B, establishing time parameter data of a specific construction state of the current project area;

S1-C, establish the comprehensive parameter data of the construction team; establish the comprehensive parameter data of the construction equipment; establish the comprehensive parameter data of the construction materials;

S1-D, establish collaborative decision-making condition data of construction organization participants, roles, and permissions;

S1-E, establish comprehensive parameter data of engineering early warning.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1 or 3, wherein the S2 comprises:

S2-A: Divide the engineering structure and form information data according to the sub-item structure of the project, and execute S2-B;

S2-B, the design BIM model is established according to the structure of the sub-item and the construction BIM model is used to split the construction BIM model to form the construction BIM model data.
The comprehensive auxiliary decision-making method for an engineering construction organization plan based on BIM technology according to claim 1 or 4, wherein the S3 comprises:

S3-A, sorting the construction process parameter data according to the construction type of the project, wherein the construction process parameter data includes: process type, process name, step name, and parameter logical relationship of the steps;

S3-B, establish the comprehensive parameter data of the construction team; establish the comprehensive parameter data of the construction equipment; establish the comprehensive parameter data of the construction materials and set the parameter data of the construction process steps of the project, among which the parameter data of the engineering construction process steps include : Construction material, construction team, construction work team, construction equipment parameter data, and according to the set construction material, construction team, construction work team, construction equipment parameter data, form the working hours system parameters under the rated construction man-hours and rated construction quantities mode data.
The comprehensive auxiliary decision-making method for an engineering construction organization scheme based on BIM technology according to claim 1 or 5, wherein the S4 comprises:

S4-A, according to the type of construction process, set up a construction engineering structure that conforms to it, and form the logical relationship data between the process and the construction object;

S4-B, according to the logical relationship between the construction engineering structure and the process, the actual engineering quantity parameter data of the construction process corresponding to each engineering structure is concerned.