Building engineering quality control method and system based on BIM

Abstract

The invention relates to the technical field of building informatization management, in particular to a BIM-based building engineering quality control method and system, and the method comprises the following steps: based on a BIM data model, extracting building material durability and regional climate conditions, carrying out temperature and humidity matching, associating climate factors with durability parameters, and obtaining a building material performance sequence basic value. According to the method, the building informatization technology and the fine execution logic are combined, the building material performance is accurately monitored and predicted, the project management efficiency and quality are improved, the material durability parameters and the regional climate are matched, data are analyzed in details, the aging rate is effectively predicted, and the aging trend is assisted and integrated through time sequence analysis; the material service life is accurately predicted, the replacement demand is marked in time, durability degradation evaluation is matched with BIM inventory data, the timeliness and accuracy of replacement are ensured, the resource allocation efficiency is remarkably improved, the maintenance cost is reduced, and the overall quality control is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of building information management, and in particular to a construction engineering quality control method and system based on BIM. Background Art

[0002] The field of building information management technology covers a series of methods and practices that use digital tools and software platforms, such as Building Information Modeling (BIM), to enhance the management efficiency and quality of the design, construction, and operation and maintenance processes of construction projects. This technology enables project teams to create, share, and manage large amounts of project information in a shared data environment, support multidisciplinary collaboration, optimize project plans, improve resource allocation efficiency, and reduce errors and costs. Building information management also includes the use of cloud computing and big data analysis, as well as the use of mobile technology and the Internet of Things (IoT) to enhance real-time acquisition and processing of field data.

[0003] Among them, the quality control method of construction projects focuses on ensuring and improving the quality of construction projects through strategic and technical means. Its purpose is to monitor the compliance of building materials, construction methods and engineering standards, ensure that the project meets design specifications, safety standards and customer expectations, and through the implementation of effective quality control methods, defects and errors can be prevented, rework and maintenance costs can be reduced, thereby improving the overall success rate and return on investment of construction projects. Methods include quality assurance plans, quality audits, regular inspections and the use of specialized quality management software for data analysis and reporting.

[0004] Existing technologies mainly rely on traditional quality assurance plans and regular inspections, lacking the integration and efficient processing of real-time data. Without highly integrated information support, there are obvious shortcomings in the monitoring of building material performance and aging prediction, resulting in inefficient resource allocation, high rework and maintenance costs, and a lack of in-depth analysis of the relationship between climate conditions and material properties. This makes the replacement cycle of building materials unscientific and unable to achieve refined management, resulting in unstable performance of construction projects in terms of quality control and return on investment, affecting the success rate and sustainable development of the project. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a construction project quality control method and system based on BIM.

[0006] In order to achieve the above object, the present invention adopts the following technical solution, a construction project quality control method based on BIM, comprising the following steps: S1: Based on the BIM data model, the durability of building materials and regional climate conditions are extracted, temperature and humidity are matched, climate factors are associated with durability parameters, and the basic value of the building material performance sequence is obtained; S2: Based on the basic value of the building material performance sequence, the aging rate is set, the age threshold is screened, and the aging rate trend is integrated into the time series to generate a material aging rate prediction sequence. S3: Based on the material aging rate prediction sequence, decompose the durability performance parameters of the building materials in the BIM model, compare the current performance and the durability threshold item by item, extract the degradation degree, integrate the key performance value and the threshold, and obtain the material durability degradation assessment value; S4: Based on the durability degradation assessment value of the material, compare the durability requirements and replacement cycles of key structures, mark the over-life areas, organize the replacement requirements and locations into a list, and generate a building material update requirement identification; S5: Based on the building material update demand identifier, the update demand is matched with the inventory data in the BIM model, the material specifications, types and inventory are compared, and the replacement material records are recorded to obtain a building material update configuration table; S6: Based on the building material update configuration table, the update information is input into the building maintenance record, the items are associated and the materials are updated by nodes, and the construction project quality control execution record is generated.

[0007] As a further solution of the present invention, the basic values ​​of the building material performance sequence include temperature influencing factors, humidity influencing factors, and durability performance parameters; the material aging rate prediction sequence includes aging rate trends and time series data; the material durability degradation assessment values ​​include key performance values, durability threshold data, and degradation degree; the building material update requirement identification includes areas exceeding the life threshold, replacement requirements, and corresponding positions; the building material update configuration table includes replacement material specifications, material types, and inventory information; the construction project quality control execution records include maintenance records, update configurations, and maintenance items.

[0008] As a further solution of the present invention, based on the BIM data model, the steps of extracting the durability of building materials and regional climate conditions, matching temperature and humidity, associating climate factors with durability parameters, and obtaining the basic value of the building material performance sequence are specifically as follows: S101: Based on the BIM data model, extract the durability performance parameters of building materials, check and integrate the related parameters one by one, extract the temperature and humidity data in the regional climate conditions, match the temperature and humidity values ​​to the material parameters one by one, eliminate inconsistent data through screening and calibration, and generate a preliminary data set of material and climate correlation; S102: Based on the preliminary data set of material and climate association, the temperature and humidity data in the climate are subdivided into time series, and the temperature and humidity change trends are segmented and screened, and the climate condition data are cross-compared according to the segment matching rules to obtain a climate condition matching data set; S103: Based on the climate condition matching data set, the numerical changes of each key parameter are refined and screened according to the relationship between differentiated temperature and humidity on the durability of materials. The numerical ranges of the parameters are screened and integrated according to the durability requirements. Combined with the segmented matching parameter values, the basic values ​​of the building material performance sequence are established.

[0009] As a further solution of the present invention, based on the basic value of the building material performance sequence, the aging rate is set, the aging rate is screened by the age threshold, compared with the use conditions, and the aging rate trend is integrated into the time series to generate the material aging rate prediction sequence. The specific steps are: S201: Based on the basic value of the building material performance sequence, an aging rate parameter is set, material data is sorted according to the durability of differentiated materials, the durability of the materials is matched with the aging rate one by one, the age data and the rate parameter are compared and screened item by item, and an age screening aging rate set is obtained; S202: Filtering the aging rate set based on the age, extracting material aging rates item by item, matching material aging rates according to the numerical standard of usage conditions, excluding aging rates that do not meet the conditions, integrating material usage conditions, and establishing an aging rate set matching the usage conditions; S203: Based on the usage condition matching aging rate set, the aging rate change trends that meet the conditions are accumulated year by year in a time series, and the aging rate prediction sequence is generated by categorizing and arranging them by years.

[0010] As a further solution of the present invention, based on the material aging rate prediction sequence, the durability performance parameters of the building materials in the BIM model are decomposed, the current performance and the durability threshold are compared item by item, the degradation degree is extracted, the key performance value and the threshold are integrated, and the steps of obtaining the material durability degradation evaluation value are specifically as follows: S301: Based on the material aging rate prediction sequence, decompose the building material durability performance parameters in the BIM data model, extract the material performance indicators item by item, and uniformly merge the durability performance values ​​of the same type of materials into corresponding performance categories to generate a material current performance data set; S302: Based on the material current performance data set, the performance parameters of each material are compared with the preset durability threshold data one by one, and the materials are grouped according to the type and value of the materials, and the difference between the materials on the threshold after the comparison is recorded, and the current state of each material is divided into degradation levels according to the difference value, so as to establish a material degradation degree data set; S303: Based on the material degradation degree data set, apply the Bayesian evaluation algorithm to extract the key performance values ​​in the degradation evaluation, pair the key performance values ​​with the durability threshold data, and arrange them in order of material type and numerical value, organize the evaluation values ​​according to the standard sequence, and generate the material durability degradation evaluation value.

[0011] As a further solution of the present invention, the formula of the Bayesian evaluation algorithm is as follows:

[0012] Calculate the durability degradation assessment value and generate a degradation assessment result, where: represents the durability degradation assessment value, Represents the degraded key performance value of the material in its current state, Indicates the key performance value of the material's durability threshold, is the average degradation rate of the material, is the time interval of the durability threshold, is the current volume deformation value of the material, is the initial volume deformation value of the material, Indicates the current ambient temperature of the material. is the standard ambient temperature of the material, , , They are respectively the degradation rate, durability time, and temperature deformation correlation adjustment coefficient, is a numerical stability tuning constant.

[0013] As a further solution of the present invention, based on the material durability degradation assessment value, the key structure durability requirements and replacement cycles are compared, the over-life areas are marked, and the replacement requirements and locations are sorted into a list to generate the building material update requirement identification steps as follows: S401: Based on the material durability degradation assessment value, the durability requirements and material replacement cycles of key structures are extracted, the durability requirement values ​​are compared with the material assessment values ​​one by one, the data of materials exceeding the life threshold are recorded and grouped by location, and a list of identifications of materials exceeding the life is generated; S402: Based on the over-life material identification list, locate the position of each marked material in the building structure, extract the position coordinates item by item and correspond to the marked materials, classify and sort each material replacement demand according to the position sequence, and establish a material replacement demand area data set; S403: Based on the material replacement demand regional data set, material replacement demands in the building area are extracted one by one, replacement demands are reallocated by region, and the correspondence between each material and location is arranged, and the update demand and location data are merged to generate a building material update demand identifier.

[0014] As a further solution of the present invention, based on the building material update requirement identifier, the update requirement is matched with the inventory data in the BIM model, the material specifications, types and inventory are compared, and the material records are replaced to obtain the building material update configuration table. Specifically, the steps are as follows: S501: Based on the building material update requirement identifier, extract material specifications, types and quantity requirements, call the material specifications in the requirements, and compare them with the stock materials in the BIM model, screen the stock materials that meet the requirements, and generate a matching stock material list; S502: Based on the matching inventory material list, screen the inventory materials that meet the specifications according to the type of material requirements, check the inventory of each material, directly compare the inventory inventory with the required quantity, and establish a replacement material list that meets the requirements; S503: Based on the list of replacement materials that meet the requirements, the replacement materials that meet the specifications, types and inventory are sorted in order according to the positions in the building renewal requirements, the materials are matched with the required positions, the replacement materials are arranged by position, and they are summarized in a configuration table to obtain a building material renewal configuration table.

[0015] As a further solution of the present invention, based on the building material update configuration table, the update information is input into the building maintenance record, the items are associated and the materials are updated by nodes, and the steps of generating the construction project quality control execution record are specifically as follows: S601: Based on the building material update configuration table, extract the material type, location and specification of the updated configuration, match the material type with the building maintenance record, check the maintenance record items, enter the configuration table content into the maintenance record one by one, and generate a maintenance record update list; S602: Based on the maintenance record update list, extract material replacement requirements according to the building update node, call the update content of the corresponding building structure position, perform material replacement operations in sequence, mark the replacement situation in the maintenance item record, and establish a material update and maintenance record; S603: Based on the material update and maintenance records, organize the maintenance items and corresponding material replacement records, merge the maintenance content and replacement operation records, integrate the material replacement and maintenance content, and arrange them in sequence to generate a construction project quality control execution record.

[0016] A BIM-based construction project quality control system, the BIM-based construction project quality control system is used to execute the BIM-based construction project quality control method, the system comprises: The material climate matching assessment module is based on the BIM data model, extracts the durability parameters of building materials, associates the temperature and humidity data item by item, classifies and sorts the regional climate conditions, and calculates the association between climate conditions and durability parameters in combination with the durability performance parameters to obtain the climate matching sequence; The material aging rate calculation module sets aging rate parameters based on the climate matching sequence, compares the durability parameters with the age threshold in sequence, extracts and screens the aging rate change data, integrates the aging rate change trend according to the age into the time series, and generates an aging rate sequence; The durability degradation identification module decomposes the durability parameters of the material based on the aging rate sequence, compares the current performance of the material with the durability threshold item by item, calculates and extracts the degree of degradation, integrates the key performance values ​​in the degradation data, and generates a material degradation assessment value; The material update demand identification module compares the replacement cycle with the durability demand of the key structure of the building based on the material degradation assessment value, selects the regional materials that exceed the life threshold, sorts out the replacement demand according to the region and the corresponding material list, and generates a material update demand list; The material update management module matches the inventory data based on the material update demand list, compares the materials that meet the specifications and quantity requirements item by item, integrates the matching materials into the update configuration list, and links them to the building maintenance records, executes material replacement operations, and generates construction project quality control execution records.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are: In the present invention, by combining building information management technology with specific execution logic, accurate monitoring and prediction of building material performance is achieved, thereby improving the efficiency and quality of project management. By matching the durability performance parameters of building materials with the climatic conditions of the application area, detailed data analysis is performed to effectively predict the aging rate of materials. Time series analysis is used to integrate material aging trends, allowing accurate prediction of the life span of building materials and timely marking of areas that need to be replaced. Durability degradation assessment is integrated into material update requirements, matching with inventory data in the BIM model, and ensuring the timeliness and accuracy of material replacement. This method greatly improves the efficiency of resource allocation, reduces maintenance costs, and enhances the overall quality control of construction projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the workflow of the present invention; Figure 2 This is a detailed flow chart of S1 of the present invention; Figure 3 This is a detailed flow chart of S2 of the present invention; Figure 4 This is a detailed flow chart of S3 of the present invention; Figure 5 This is a detailed flow chart of S4 of the present invention; Figure 6 This is a detailed flow chart of S5 of the present invention; Figure 7 This is a detailed flow chart of S6 of the present invention; Figure 8 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0021] See also Figure 1 The present invention provides a technical solution, a construction engineering quality control method based on BIM, comprising the following steps: S1: Based on the BIM data model, the durability performance parameters of building materials and the climate conditions of the application area are extracted, the temperature and humidity data are matched, the temperature and humidity influencing factors are associated with the durability parameters, and the basic value of the building material performance sequence is obtained; S2: Based on the basic value of the building material performance sequence, set the aging rate parameters of the building materials, screen the aging rate through the age threshold, and compare it with the use conditions item by item, integrate the aging rate change trend into the time series, and generate the material aging rate prediction sequence; S3: Based on the material aging rate prediction sequence, decompose the durability performance parameters of building materials in the BIM data model, extract the degradation degree of the material in the current state item by item by comparing the current performance data of the material with the durability threshold, integrate the key performance values ​​in the degradation assessment with the threshold data group, and obtain the material durability degradation assessment value; S4: Based on the material durability degradation assessment value, compare the key structural durability requirements and material replacement cycles item by item, mark the areas that exceed the life threshold, sort the material replacement requirements and corresponding locations in the area into a list, and generate the building material update requirement identification; S5: Based on the building material update demand identification, the update demand is matched with the material inventory data in the BIM model, the material specifications, types and inventory information are compared item by item, and the replacement materials that meet the demand are recorded in the update configuration table to obtain the building material update configuration table; S6: Based on the building material update configuration table, input the update information into the building maintenance record, associate the maintenance items of each configuration, perform material updates according to the building update nodes, integrate the update and maintenance records, and generate the construction project quality control execution record.

[0022] The basic values ​​of the building materials performance sequence include temperature influencing factors, humidity influencing factors, and durability performance parameters. The material aging rate prediction sequence includes aging rate trends and time series data. The material durability degradation assessment values ​​include key performance values, durability threshold data, and degradation degree. The building material update demand identification includes areas that exceed the life threshold, replacement needs, and corresponding locations. The building material update configuration table includes replacement material specifications, material types, and inventory information. The construction project quality control execution records include maintenance records, update configurations, and maintenance items.

[0023] Specifically, if Figure 2 As shown in the figure, based on the BIM data model, the durability of building materials and regional climate conditions are extracted, temperature and humidity are matched, climate factors are associated with durability parameters, and the steps to obtain the basic value of the building material performance sequence are as follows: S101: Based on the BIM data model, the durability performance parameters of building materials are extracted, the associated parameters are checked and integrated one by one, the temperature and humidity data in the regional climate conditions are extracted, the temperature and humidity values ​​are matched to the material parameters one by one, and inconsistent data are eliminated through screening and calibration. The execution process of generating a preliminary data set of material and climate association is as follows; Based on the BIM data model, the durability performance parameters of building materials are obtained, and the specific durability performance values ​​of the materials are extracted in turn, including the durability parameters such as corrosion resistance, UV resistance, and weathering resistance of the materials. The associated parameter values ​​are checked and compared item by item. By comparing and screening the same material parameter values ​​in differentiated sources or differentiated versions, the parameter values ​​with differences are preliminarily quantitatively corrected, and the consistent data obtained through comparison are integrated. At the same time, the materials with higher durability parameter values ​​in the data are screened for comparison and used as the parameter benchmark. Combined with the accuracy and matching of the material durability and the data source, the parameter values ​​with abnormalities or large differences are deleted, and the material parameter data that meets the durability requirements are sorted out, the durability performance parameters are divided into various characteristics and entered into a basic data set, and the associated climate condition parameters are integrated.

[0024] S102: Based on the preliminary data set of material and climate association, the temperature and humidity data in the climate are subdivided into time series, and the temperature and humidity change trends are segmented and screened, and the climate condition data are cross-compared according to the segment matching rules. The execution process of obtaining the climate condition matching data set is as follows; According to the climate condition parameters in the preliminary data set of material and climate association, including temperature and humidity data in climate conditions, the climate data is segmented according to time series, and the temperature change trends and humidity change trends in each time period are segmented and sorted. Based on the specific trend characteristics of daily changes, monthly changes and seasonal changes, the change ranges of differentiated temperature and humidity conditions in each segment of data are summarized, and the changes in temperature and humidity in each segment are obtained through screening. Based on the characteristics of climate condition changes, the data are further refined, and the climate condition data of each segment is cross-compared with the temperature and humidity data in differentiated areas and time periods according to the set segment matching rules to obtain temperature and humidity data with small changes or changes that meet stability requirements as the climate condition matching data set.

[0025] S103: Based on the climate condition matching data set, the value change of each key parameter is refined and screened for the relationship between differentiated temperature and humidity on the durability of materials, and the value range of the parameter is screened and integrated according to the durability requirements. Combined with the segmented matching parameter values, the execution process of establishing the basic value of the building material performance sequence is as follows; Differentiate the relationship between temperature and humidity on material durability and refine the parameter values ​​according to the formula:

[0026] Calculate the basic value of durability performance, where: Represents the basic value of durability performance, Represents the time period The temperature value inside Represents the time period The humidity value inside is the material durability performance coefficient; Get the temperature value within the time period from the monitoring data And humidity value , in each time period The durability coefficient of the material Combined calculation; Set temperature In the time period of 25 degrees Celsius, humidity The material durability coefficient is 60%. is 1.2, and when it is substituted into the formula for calculation, the durability performance value of each time period is obtained. ,Right now , the durability performance value of all time periods The sum is then added to obtain the total durability base value.

[0027] Specifically, if Figure 3As shown in the figure, based on the basic value of the building material performance sequence, the aging rate is set, the age threshold is screened, and the aging rate trend is integrated into the time series to generate the material aging rate prediction sequence. The specific steps are as follows: S201: Based on the basic value of the building material performance sequence, the aging rate parameter is set, the material data is sorted according to the durability of the differentiated materials, the durability of the materials is matched with the aging rate one by one, and the age data and the rate parameter are compared and screened item by item. The execution process of obtaining the age screening aging rate set is as follows; Based on the basic values ​​of the building material performance sequence, the aging rate parameters are set, the durability of each material is analyzed, the material data are arranged one by one according to the difference in age, and the material durability data is compared with the set aging rate item by item. The values ​​in the age data are matched to the corresponding aging rate parameters in turn. According to the actual age difference of the material, the aging rate data that meets the expectations is screened, and the rate data that is inconsistent with the durability is eliminated, so as to obtain the age screening aging rate set that meets the conditions.

[0028] S202: Screening the aging rate set based on the age, extracting the material aging rate item by item, matching the material aging rate according to the numerical standard of the use condition, excluding the aging rate that does not meet the condition, integrating the material use condition, and establishing the use condition matching aging rate set. The execution process is as follows; The aging rate set is screened according to the years, and the aging rate of each material is extracted. The rate data is compared with the material usage conditions one by one, and the numerical standards that meet the material usage conditions are set. The aging rates of the materials that meet the conditions are matched one by one. The rate data that do not meet the material usage conditions will be eliminated. The material aging rate data are screened again to obtain the rate parameters that meet the conditions. The aging rate parameters are readjusted in combination with the material usage conditions, and finally integrated into the aging rate set that matches the material usage conditions.

[0029] S203: Based on the usage condition matching aging rate set, the aging rate change trend that meets the condition is accumulated year by year according to the time series, and the aging rate prediction sequence is generated according to the age classification. The execution process is as follows; The aging rate change trend that meets the conditions is accumulated year by year in time series, according to the formula:

[0030] Calculate the predicted aging rate, where Representative period is Durability of materials is the initial durability performance value, is the aging rate parameter; Initial durability performance value Through monitoring data, for example, the durability of the material in the initial stage is , aging rate parameter According to the material type and use environment, it is calculated by the age and performance attenuation ratio. , in years Calculation formula:

[0031] The results show that after 10 years, the durability of the material drops to about 606.53, reflecting the aging trend and durability changes of the material within the set life. The numerical results are used in the material aging rate prediction sequence.

[0032] Specifically, if Figure 4 As shown in the figure, based on the material aging rate prediction sequence, the durability performance parameters of building materials in the BIM model are decomposed, the current performance and durability thresholds are compared item by item, the degradation degree is extracted, the key performance values ​​and thresholds are integrated, and the steps for obtaining the material durability degradation assessment value are as follows: S301: Based on the material aging rate prediction sequence, decompose the building material durability performance parameters in the BIM data model, extract the material performance indicators item by item, and unify the durability performance values ​​of the same type of materials into corresponding performance categories to generate the current material performance data set. The execution process is as follows; Based on the material aging rate prediction sequence, the durability performance parameters of each building material in the BIM data model are decomposed according to the set plan, and the specific performance indicators of each material are extracted from the model one by one. By classifying the durability performance-related data, the durability index values ​​of the same type of building materials are unified and merged into the corresponding durability data set according to the performance category to ensure the data consistency of the same material type. At the same time, the performance data with deviations are eliminated and a new material current performance data set is generated to provide a data basis for subsequent evaluation and durability analysis.

[0033] S302: Based on the material current performance data set, the performance parameters of each material are compared with the preset durability threshold data one by one, and the materials are grouped according to the type and value of the materials, and the difference between the materials on the threshold after the comparison is recorded. The current state of each material is classified into degradation levels according to the difference value. The execution process of establishing the material degradation degree data set is as follows; Based on the current material performance data set, the performance parameters of each material are compared with the preset durability threshold one by one, and the specific performance value of each material is matched with the threshold standard. The materials are grouped and sorted according to their type and specific numerical value. The materials that do not meet the preset durability threshold are marked, and the difference between the performance parameters of each material and the threshold is recorded. The difference values ​​are used as the basis for dividing the degree of degradation, and further graded and divided in combination with the physical properties and service life of the materials. The degradation level labeling of the materials is completed, and a material degradation degree data set is established to facilitate the subsequent in-depth analysis of the material performance.

[0034] S303: Based on the material degradation degree data set, the Bayesian evaluation algorithm is applied to extract the key performance values ​​in the degradation evaluation, pair the key performance values ​​with the durability threshold data, and arrange them in order of material type and value, and sort the evaluation values ​​according to the standard sequence to generate the material durability degradation evaluation value. The execution process is as follows; The formula for the Bayesian evaluation algorithm is as follows:

[0035] Calculate the durability degradation assessment value and generate a degradation assessment result, where: represents the durability degradation assessment value, Represents the degraded key performance value of the material in its current state, Indicates the key performance value of the material's durability threshold, is the average degradation rate of the material, is the time interval of the durability threshold, is the current volume deformation value of the material, is the initial volume deformation value of the material, Indicates the current ambient temperature of the material. is the standard ambient temperature of the material, , , They are respectively the degradation rate, durability time, and temperature deformation correlation adjustment coefficient, is the numerical stability adjustment constant; Detailed explanation of the formula and the process of formula calculation and derivation: The key performance value of the degradation of the material in the current state is determined by monitoring the mechanical properties of the current material, and the tensile strength value is selected as the key performance indicator of degradation. , this value is tested by material mechanical properties testing equipment according to standard ASTMD638; The key performance value of the material's durability threshold. The material tensile strength of the durability threshold is based on experimental statistics and aligned with the material design limit. The durability threshold set for the material is taken. ; Average degradation rate of the material, average degradation rate It represents the degradation rate of material performance. Its slope can be calculated through a series of data on the change of tensile strength over time. Assume that the degradation rate of three months of tensile strength degradation test data is , where the slope is calculated by linear regression; The time interval of the durability threshold, Indicates the time from the initial durability threshold of the material to the current durability threshold. The material is assumed to have been used for six months. ; The current volume deformation value of the material is measured by laser ranging, and the current volume deformation is set to ; The initial volume deformation value of the material is obtained by measuring the volume of the material during molding. ; Current ambient temperature, the value obtained by monitoring the current ambient temperature, take , real-time collection through temperature sensors; The standard ambient temperature of the material and the standard operating temperature of the material are set as , usually taking the average value of the recommended working environment of the material; , , Each adjustment coefficient is set , , ,These three adjustment coefficients are based on the material's anti-degradation ability, durability time correlation, and temperature sensitivity, and are obtained through multi-material environmental experiments. Each weight is set to a constant value, which fluctuates slightly with changes in ambient temperature and material durability threshold, and changes less frequently; Stability adjustment constant, set , used to avoid the instability caused by extremely small or extremely large values ​​in division calculations; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; calculate : ; Find the sum of the denominators: ; Calculate the ratio of the numerator to the denominator and get : ; Calculated This indicates that the durability degradation assessment value of the material is high, which reflects that the material has been degraded to a large extent in the current environment, and further corresponding protection or replacement strategies need to be taken.

[0036] Specifically, if Figure 5 As shown in the figure, based on the material durability degradation assessment value, the key structural durability requirements and replacement cycles are compared, the over-life areas are marked, and the replacement requirements and locations are sorted into a list. The specific steps for generating the building material update requirement identification are as follows: S401: Based on the material durability degradation assessment value, the durability requirements and material replacement cycles of key structures are extracted, the durability requirement values ​​are compared with the material assessment values ​​one by one, the data of materials exceeding the life threshold are recorded and grouped by location, and the execution process of generating the identification list of materials exceeding the life is as follows; Based on the material durability degradation assessment value, the durability requirements of key locations in the building structure and the replacement cycle of related materials are extracted, the material durability requirement values ​​are retrieved item by item from the database, and the values ​​are compared with the material assessment values ​​in turn. By comparing the material data that exceeds the service life threshold, the location and type of each material are recorded, and the materials are classified and sorted according to the over-life situation. The materials that exceed their lifespan are marked and classified, and the over-life data of materials in differentiated locations are grouped. Finally, a list of over-life material identifications is generated, and data support is provided for subsequent replacement analysis.

[0037] S402: Based on the over-life material identification list, locate the position of each marked material in the building structure, extract the position coordinates item by item and correspond to the marked material, classify and sort each material replacement demand according to the position sequence, and establish the material replacement demand area data set. The execution process is as follows; Based on the identification list of over-life materials, the building structure position of each marked material is located, and the actual position coordinates of each marked material in the building structure are retrieved one by one. The position coordinates are bound to the corresponding marked material, and a unique marking index is generated for each material. By grouping all replacement demand data by position, the replacement demands in the building structure are classified and sorted according to the position sequence, and each over-life material is integrated and updated according to the position coordinates. Finally, a regional dataset covering specific locations and material replacement information is established to provide a clear location reference for subsequent material replacement.

[0038] S403: Based on the material replacement demand area data set, material replacement demands in the building area are extracted one by one, replacement demands are reallocated by area, and the correspondence between each material and location is arranged, and the update demand and location data are merged to generate the execution process of the building material update demand identification as follows; Material replacement requirements within the building area are extracted item by item and redistributed by area according to the formula:

[0039] Calculate the building material renewal demand indicator, where, Represents the total amount of building material renewal demand, Representative The replacement requirement value for each material in the area, Representative The estimated number of years of use of the area materials over their useful life; The material replacement demand value for a certain area , estimated service life of materials Year, substituting into the formula we get:

[0040] This result indicates that the demand for building material renewal in this area is 300. The value is used in the dataset of building material renewal demand identification, indicating the demand for material replacement in differentiated locations.

[0041] Specifically, if Figure 6 As shown in the figure, based on the building material update demand identification, the update demand is matched with the inventory data in the BIM model, the material specifications, types and inventory are compared, and the replacement material records are made to obtain the building material update configuration table. The specific steps are: S501: Based on the building material update requirement identifier, extract the material specifications, types and quantity requirements, call the material specifications in the requirements, and compare them with the stock materials in the BIM model, screen the stock materials that meet the requirements, and generate the matching stock material list. The execution process is as follows; Based on the building material update requirement identification, material specifications, types and quantity requirements are extracted item by item. By calling the material specifications in the requirement list, the specific specifications in the requirements are compared with the inventory material data in the BIM model item by item, and the parameters of each material specification are checked one by one. The inventory materials that meet the requirement specifications are screened, and the material data in the inventory that does not meet the requirement specifications are eliminated. All inventory materials that meet the requirement specifications are sorted out, and a matching inventory material list is generated according to the material specifications, quantity, type and other information to ensure that the inventory material data meets the specifications required for subsequent replacement.

[0042] S502: Based on the matching inventory material list, the inventory materials that meet the specifications are screened according to the type of material requirements, the inventory of each material is checked, the inventory inventory is directly compared with the required quantity, and the execution process of establishing a replacement material list that meets the requirements is as follows; Based on the data in the matching inventory material list, the inventory materials that meet the specifications are screened item by item according to the type of material demand. By calling the specific inventory quantity data of each material, the demand quantity of each material is directly compared with the corresponding inventory quantity. The inventory materials that meet the demand are screened out and the corresponding inventory of each demand is recorded. The specifications and inventory values ​​of the inventory materials are checked, and a list of replacement materials that meet the demand is compiled. This is used as the basic data for material replacement, and it is ensured that the quantity of materials that meet the demand meets the actual requirements of the construction material replacement demand.

[0043] S503: Based on the replacement material list that meets the requirements, the replacement materials that meet the specifications, types and stock are sorted in order according to the positions in the building renewal requirements, the materials are matched with the required positions, the replacement materials are arranged by position, and are summarized in the configuration table. The execution process of obtaining the building material renewal configuration table is as follows; Arrange the replacement materials that meet the specifications in order of required positions according to the formula:

[0044] Calculate the total amount of building material update configuration, where: Indicates the total amount of material update configuration, For location The quantity of replacement materials required, For location Available inventory of materials; Detailed explanation of the formula and the process of formula calculation: Assuming that a building is located Quantity of materials required , corresponding to the inventory quantity , substituting into the formula we get:

[0045] This result indicates that the total amount of material update configuration at this location is 80. The numerical result is used for data input of the building material update configuration table and reflects the material replacement demand configuration of each location.

[0046] Specifically, if Figure 7 As shown in the figure, based on the building material update configuration table, the update information is entered into the building maintenance record, the items are associated and the materials are updated by node, and the steps of generating the construction project quality control execution record are as follows: S601: Based on the building material update configuration table, extract the material type, location and specification of the updated configuration, match the material type with the building maintenance record, check the maintenance record items, enter the configuration table content into the maintenance record one by one, and generate the maintenance record update list. The execution process is as follows; Based on the data in the building material update configuration table, the material type, location and specification of each updated configuration are extracted item by item. By retrieving the corresponding material maintenance records and comparing the items in the material configuration table, the material type information in the configuration table is matched with the material type in the maintenance record one by one. Each configuration content and maintenance record item is checked item by item to ensure that the maintenance record is consistent with the configuration table information. The successfully matched items are recorded and organized, and the configuration table contents are entered into the maintenance record in sequence according to the required format. The verified item data is classified to generate a maintenance record update list to provide accurate records for subsequent maintenance operations.

[0047] S602: Based on the maintenance record update list, extract the material replacement requirements according to the building update node, call the update content of the corresponding building structure position, perform the material replacement operation in sequence, and mark the replacement situation in the maintenance item record. The execution process of establishing the material update and maintenance record is as follows; Based on the data content in the maintenance record update list, the material replacement requirements of the building update nodes are extracted item by item, and the building update positions in the record list are matched to the material replacement requirements one by one. By calling the update position of each material in the maintenance record, the material replacement information in each requirement is marked item by item in the maintenance record, and the record entry is updated for each completed replacement. The replacement operation is matched with the maintenance item to ensure the integrity of the record. The material update status is synchronized with the maintenance record through serialization processing, and finally the material update and maintenance record is established to provide the execution status of the update node and maintenance history information.

[0048] S603: Based on the material update and maintenance records, organize the maintenance items and the corresponding material replacement records, merge the maintenance content and the replacement operation records, integrate the material replacement and maintenance content, and arrange them in order to generate the execution process of the construction project quality control execution record as follows; Maintenance items and material replacement records are integrated and calculated by building quality control execution records according to the formula:

[0049] Calculate the total number of execution records of construction project quality control, including Indicates the total number of execution records. For the The importance weight of the maintenance item, For the The satisfaction of replacement requirements of records, represents the complexity coefficient of the maintenance operation, In order to correspond to the recorded replacement operation frequency, the actual execution volume value is further obtained by monitoring the parameters of each record of data statistics; Assume The importance weight of the maintenance item is , the replacement demand satisfaction is , the maintenance complexity coefficient is , the replacement operation frequency is , then the calculation of this entry in the execution record is:

[0050] Summarize the data of each record to get the total number of execution records ,The numerical results show the importance of this item in quality ,control and the impact of operation complexity in the ,execution record.

[0051] like Figure 8 As shown, a BIM-based construction project quality control system includes: The material climate matching assessment module is based on the BIM data model, extracts the durability parameters of building materials, associates the temperature and humidity data item by item, classifies and sorts the regional climate conditions, and calculates the association between climate conditions and durability parameters in combination with the durability performance parameters to obtain the climate matching sequence; The material aging rate calculation module sets aging rate parameters based on the climate matching sequence, compares the durability parameters with the age threshold in sequence, extracts and filters the aging rate change data, integrates the aging rate change trend according to the age into the time series, and generates an aging rate sequence; The durability degradation identification module decomposes the durability parameters of the material based on the aging rate sequence, compares the current performance of the material with the durability threshold item by item, calculates and extracts the degree of degradation, integrates the key performance values ​​in the degradation data, and generates the material degradation assessment value; The material update demand identification module compares the replacement cycle with the durability demand of the key building structures based on the material degradation assessment value, screens the regional materials that exceed the life threshold, sorts out the replacement demand by region and the corresponding material list, and generates a material update demand list; The material update management module matches the inventory data based on the material update demand list, compares the materials that meet the specifications and quantity requirements item by item, integrates the matching materials into the update configuration list, and links it to the building maintenance record to execute the material replacement operation and generate the construction project quality control execution record.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A construction project quality control method based on BIM, characterized in that: The following steps are involved: Based on the BIM data model, the durability of building materials and regional climate conditions are extracted, temperature and humidity are matched, and climate factors are associated with durability parameters to obtain the basic value of the building material performance sequence; Based on the basic value of the building material performance sequence, the aging rate is set, and the aging rate trend is integrated into the time series by screening through the age threshold and comparing with the use conditions to generate the material aging rate prediction sequence; Based on the material aging rate prediction sequence, the durability performance parameters of the building materials in the BIM model are decomposed, the current performance and the durability threshold are compared item by item, the degradation degree is extracted, the key performance value and the threshold are integrated, and the material durability degradation assessment value is obtained; Based on the material durability degradation assessment value, compare the key structural durability requirements and replacement cycles, mark the over-life areas, organize the replacement requirements and locations into a list, and generate a building material update requirement identification; Based on the building material update demand identifier, the update demand is matched with the inventory data in the BIM model, the material specifications, types and inventory are compared, and the replacement material records are made to obtain the building material update configuration table; Based on the building material update configuration table, the update information is input into the building maintenance record, the items are associated and the materials are updated by nodes, and the construction project quality control execution record is generated.

2. The BIM-based construction project quality control method according to claim 1 is characterized in that: The basic values ​​of the building material performance sequence include temperature influencing factors, humidity influencing factors, and durability performance parameters; the material aging rate prediction sequence includes aging rate trends and time series data; the material durability degradation assessment values ​​include key performance values, durability threshold data, and degradation degree; the building material update requirement identification includes areas exceeding the life threshold, replacement requirements, and corresponding locations; the building material update configuration table includes replacement material specifications, material types, and inventory information; the construction project quality control execution records include maintenance records, update configurations, and maintenance items.

3. The BIM-based construction project quality control method according to claim 1 is characterized in that: Based on the BIM data model, the durability of building materials and regional climate conditions are extracted, temperature and humidity are matched, climate factors are associated with durability parameters, and the steps to obtain the basic value of the building material performance sequence are as follows: Based on the BIM data model, the durability performance parameters of building materials are extracted, and the related parameters are checked and integrated one by one. The temperature and humidity data in the regional climate conditions are extracted, and the temperature and humidity values ​​are matched to the material parameters one by one. Inconsistent data are eliminated through screening and calibration, and a preliminary data set of material and climate correlation is generated; Based on the preliminary data set of association between the material and the climate, the temperature and humidity data in the climate are subdivided into time series, and the temperature and humidity change trends are segmented and screened, and the climate condition data are cross-compared according to the segment matching rules to obtain the climate condition matching data set; Based on the climate condition matching data set, the numerical changes of each key parameter are refined and screened according to the effects of differentiated temperature and humidity on the durability of materials. The numerical ranges of the parameters are screened and integrated according to the durability requirements. Combined with the segmented matching parameter values, the basic values ​​of the building material performance series are established.

4. The BIM-based construction project quality control method according to claim 1 is characterized in that: Based on the basic value of the building material performance sequence, the aging rate is set, the age threshold is screened, and the aging rate trend is integrated into the time series to generate the material aging rate prediction sequence. The specific steps are as follows: Based on the basic value of the building material performance sequence, an aging rate parameter is set, the material data is sorted according to the durability of the differentiated materials, the durability of the materials is matched with the aging rate one by one, the age data and the rate parameter are compared and screened item by item, and an age screening aging rate set is obtained; Based on the age, the aging rate set is screened, the material aging rates are extracted item by item, the material aging rates are matched according to the numerical standards of the use conditions, the aging rates that do not meet the conditions are excluded, the material use conditions are integrated, and the use condition matching aging rate set is established; Based on the usage condition matching aging rate set, the aging rate change trends that meet the conditions are accumulated year by year according to the time series, and the materials are classified and arranged by years to generate a material aging rate prediction sequence.

5. The BIM-based construction project quality control method according to claim 1 is characterized in that: Based on the material aging rate prediction sequence, the durability performance parameters of the building materials in the BIM model are decomposed, the current performance and the durability threshold are compared item by item, the degradation degree is extracted, the key performance value and the threshold are integrated, and the steps of obtaining the material durability degradation assessment value are as follows: Based on the material aging rate prediction sequence, the durability performance parameters of building materials in the BIM data model are decomposed, the performance indicators of the materials are extracted item by item, the durability performance values ​​of the same type of materials are uniformly merged into corresponding performance categories, and the current performance data set of the materials is generated; Based on the current performance data set of the materials, the performance parameters of each material are compared with the preset durability threshold data one by one, and the materials are grouped according to the type and value of the materials, the difference between the materials on the threshold after the comparison is recorded, and the current state of each material is divided into degradation levels according to the difference value to establish a material degradation degree data set; Based on the material degradation degree data set, a Bayesian evaluation algorithm is applied to extract key performance values ​​in degradation evaluation, pair the key performance values ​​with durability threshold data, and arrange them in order of material type and numerical value. The evaluation values ​​are sorted according to a standard sequence to generate material durability degradation evaluation values.

6. The BIM-based construction project quality control method according to claim 5 is characterized in that: The formula of the Bayesian evaluation algorithm is as follows: Calculate the durability degradation assessment value and generate a degradation assessment result, where: represents the durability degradation assessment value, Represents the degraded key performance value of the material in its current state, Indicates the key performance value of the material's durability threshold, is the average degradation rate of the material, is the time interval of the durability threshold, is the current volume deformation value of the material, is the initial volume deformation value of the material, Indicates the current ambient temperature of the material. is the standard ambient temperature of the material, , , They are respectively the degradation rate, durability time, and temperature deformation correlation adjustment coefficient, is a numerical stability tuning constant.

7. The BIM-based construction project quality control method according to claim 1 is characterized in that: Based on the material durability degradation assessment value, the key structural durability requirements and replacement cycles are compared, the over-life areas are marked, and the replacement requirements and locations are sorted into a list. The specific steps of generating the building material update requirement identification are as follows: Based on the material durability degradation assessment value, the durability requirements and material replacement cycles of key structures are extracted, the durability requirement values ​​are compared with the material assessment values ​​one by one, the data of materials exceeding the life threshold are recorded and grouped by location, and a list of identifications of materials exceeding the life is generated; Based on the over-life material identification list, locate the position of each marked material in the building structure, extract the position coordinates item by item and correspond to the marked materials, classify and sort each material replacement demand according to the position sequence, and establish a material replacement demand regional data set; Based on the material replacement demand regional data set, the material replacement demands in the building area are extracted one by one, the replacement demands are reallocated by area, and the correspondence between each material and the location is arranged. The update demand and location data are merged to generate a building material update demand identification.

8. The BIM-based construction project quality control method according to claim 1 is characterized in that: Based on the building material update demand identification, the update demand is matched with the inventory data in the BIM model, the material specifications, types and inventory are compared, and the replacement material records are recorded to obtain the building material update configuration table. Specifically, the steps are as follows: Based on the building material update requirement identifier, extract material specifications, types and quantity requirements, call the material specifications in the requirements, and compare them with the stock materials in the BIM model, screen the stock materials that meet the requirements, and generate a matching stock material list; Based on the matching inventory material list, screening the inventory materials that meet the specifications according to the type of material requirements, checking the inventory of each material, directly comparing the inventory inventory with the required quantity, and establishing a replacement material list that meets the requirements; Based on the list of replacement materials that meet the requirements, the replacement materials that meet the specifications, types and inventory are sorted in order according to the positions in the building renewal requirements, the materials are matched with the required positions, the replacement materials are arranged by position, and summarized in a configuration table to obtain a building material renewal configuration table.

9. The BIM-based construction engineering quality control system according to claim 1 is characterized in that: Based on the building material update configuration table, the update information is input into the building maintenance record, the items are associated and the materials are updated by nodes, and the steps of generating the construction project quality control execution record are as follows: Based on the building material update configuration table, extract the material type, location and specification of the updated configuration, match the material type with the building maintenance record, check the maintenance record items, enter the configuration table content into the maintenance record one by one, and generate a maintenance record update list; Based on the maintenance record update list, extract material replacement requirements according to the building update node, call the update content of the corresponding building structure position, perform material replacement operations in sequence, mark the replacement situation in the maintenance item record, and establish a material update and maintenance record; Based on the material update and maintenance records, organize maintenance items and corresponding material replacement records, merge maintenance content and replacement operation records, integrate material replacement and maintenance content, and arrange them in sequence to generate construction project quality control execution records.

10. A BIM-based construction project quality control system, characterized in that: According to the BIM-based construction project quality control method according to any one of claims 1 to 9, the system comprises: The material climate matching assessment module is based on the BIM data model, extracts the durability parameters of building materials, associates the temperature and humidity data item by item, classifies and sorts the regional climate conditions, and calculates the association between climate conditions and durability parameters in combination with the durability performance parameters to obtain the climate matching sequence; The material aging rate calculation module sets aging rate parameters based on the climate matching sequence, compares the durability parameters with the age threshold in sequence, extracts and screens the aging rate change data, integrates the aging rate change trend according to the age into the time series, and generates an aging rate sequence; The durability degradation identification module decomposes the durability parameters of the material based on the aging rate sequence, compares the current performance of the material with the durability threshold item by item, calculates and extracts the degree of degradation, integrates the key performance values ​​in the degradation data, and generates a material degradation assessment value; The material update demand identification module compares the replacement cycle with the durability demand of the key structure of the building based on the material degradation assessment value, selects the regional materials that exceed the life threshold, sorts out the replacement demand according to the region and the corresponding material list, and generates a material update demand list; The material update management module matches the inventory data based on the material update demand list, compares the materials that meet the specifications and quantity requirements item by item, integrates the matching materials into the update configuration list, and links them to the building maintenance records, executes material replacement operations, and generates construction project quality control execution records.

Images