CN117829593A - BIM-based fabricated building management method and system - Google Patents
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Abstract
The invention discloses a BIM-based assembly type building management method and system, which relate to the technical field of building processes, wherein a model creation module creates a digital model by using a BIM technology, acquires component material data, connection state data and layout data in a design result in real time, effectively improves design efficiency, and ensures that a design data set is accurately embedded into the BIM digital model through real-time transmission; the field examination module examines the foundation and the topography state in the field at the assembly stage, marks and detects the related supporting state and deformation data in real time by locking the coordinate position of the Oi at the fine tuning position; meanwhile, classifying operations of the Oi at the fine tuning position, after fine tuning, monitoring the intervention of subsequent overhaul on the building by the system, recording related deviation data, and judging whether the fine tuning operation can influence the overall stability of the fabricated building; and comprehensively obtaining a safety evaluation index Aqzs, comparing and analyzing the safety evaluation index Aqzs with an evaluation threshold K, and generating a safety grade report which supports a management department to judge whether the acceptance can be carried out.
Description
Technical Field
The invention relates to the technical field of building processes, in particular to an assembled building management method and system based on BIM.
Background
In the building field today, BIM-based technology is one of the important innovations in the building industry. BIM technology provides an all-round design, collaboration, and management tool by creating, managing, and analyzing three-dimensional models of building information. With the rise of the fabricated building, BIM technology is gradually integrated into the field, and provides a new opportunity for the development of the building.
In the prior art, a fabricated building is a building system based on factory prefabricated parts and assembled on site. The construction method greatly improves engineering efficiency, reduces cost and is widely applied in the construction industry. In the assembly type building design and construction process, the application of BIM technology provides an efficient collaboration platform for projects, promotes information sharing and communication, and improves the level of overall project management.
However, during the actual assembly process, the trimming operation becomes a part of the unavoidable. Temporary fine tuning is often caused by field conditions, terrain differences or minor deviations between the design and the actual situation, and may involve fine tuning of the connection of the components, fine tuning of the position and adjustment of the support structure. Although the initial aim of fine tuning was to develop in the direction of solving the practical problems, the safety of the building caused by fine tuning is not quite as great before construction and later use. This introduces a problem that needs to be solved urgently: in the fine tuning process, how to ensure the safety and stability of the fabricated building, the current management system may have a shortage, and the influence of the fine tuning process cannot be comprehensively and effectively monitored.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a BIM-based assembly type building management method and system, which solve the problems in the background art.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the BIM-based assembled building management system comprises a model creation module, a field consideration module, a fine adjustment assembly module, a building safety analysis module and a report management module;
the model creation module is used for creating a BIM digital model by using a BIM technology, collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage, producing a design data set, and transmitting the design data set into the BIM digital model in real time;
the on-site examining module is used for examining on-site foundation and topography states in the assembly stage in the field, locking the position of the fine tuning coordinate and marking the position as a fine tuning position Oi when fine tuning treatment is needed to be carried out on the local part of the assembled building, and detecting related supporting state data information and related deformation data information of the fine tuning position Oi in real time after fine tuning;
The fine adjustment assembly module is used for classifying fine adjustment operations executed by the fine adjustment part Oi, wherein the fine adjustment operation comprises connection mode fine adjustment and fine adjustment of the positions of the components in the horizontal and vertical directions, monitors whether subsequent maintenance on the assembled building is interfered or not on the basis of fine adjustment assembly, and records related deviation data information before and after fine adjustment on the assembled building;
the building safety analysis module is used for extracting characteristics of related support state data information, related deformation data information and related deviation data information, analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, fitting to obtain a safety evaluation index Aqzs after dimensionless processing, wherein the safety evaluation index Aqzs is obtained by the following formula:
in the formula, h 1 、h 2 And h 3 The preset proportionality coefficients are respectively expressed as a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs and a maintenance coefficient Whxs, wherein h is more than or equal to 0.16 1 ≤0.36，0.20≤h 2 ≤0.45，0.08≤h 3 Not more than 0.19, and not more than 0.50 h 1 +h 2 +h 3 R is less than or equal to 1.0 and is expressed as a first correction constant;
The report management module is used for presetting an evaluation threshold K, comparing and analyzing the evaluation threshold K with the safety evaluation index Aqzs, obtaining a safety level report, and judging whether the acceptance operation can be carried out according to a report result.
Preferably, the model creation module comprises a creation unit and a design unit;
the creation unit is used for creating a BIM digital model by using a BIM technology, and transmitting a design data set, related support state data information, related deformation data information and related deviation data information into the BIM digital model so as to provide a visualized building information interface;
the design unit is used for designing and recording related component material data, related component connection state data and component layout data in the assembly type building design stage, wherein the related component material data comprises material types, poisson ratios, tensile strength, compressive strength and material density;
the related component connection state data comprises assembly among components in a mode of bolts, welding, bonding and erecting; the component layout data includes component setting positions, setting numbers, setting directions, and setting sizes.
Preferably, the field consideration module comprises a fine adjustment positioning unit and an assembly acquisition unit;
the fine adjustment positioning unit is used for timely acquiring the position of the fine adjustment part Oi aiming at the fine adjustment phenomenon required to be performed in the assembly stage and reporting the position of the fine adjustment part Oi to the management department for making a comprehensive statistical report;
the assembly acquisition unit is used for monitoring and acquiring relevant supporting state data information and relevant deformation data information of the fine tuning point Oi in real time, wherein the relevant supporting state data information comprises a height value Gdz of the fine tuning point Oi, a temperature difference Wdcz, wind load Fhz, supporting rigidity and supporting state;
the relevant deformation data information includes the cross-sectional area Jmj of the component of the trim Oi, the modulus of elasticity Txlz, the component length Gjcd, and the crack width.
Preferably, the fine adjustment assembly module comprises a category distinguishing unit and an overhaul intervention unit;
the classification unit is used for classifying fine adjustments generated in the assembly stage, collecting related support state data information in real time according to the fine adjustments of the connection modes, and collecting related deformation data information in real time according to the fine adjustments of the positions of the components in the horizontal and vertical directions;
the maintenance intervention unit is used for monitoring and collecting component setting changes before and after fine adjustment assembly and obtaining related deviation data information, wherein the related deviation data information comprises a reserved maintenance channel width Yk in design 0 Maintenance of the channel width Yk after trimming 1 And the variation in the manner of connection of the components.
Preferably, a risk threshold value Q is preset, and the risk threshold value Q and the wind load Fhz are compared and analyzed to judge whether an early warning notification needs to be sent out or not, and evacuation assembly personnel leave the site in time;
if the wind load Fhz is greater than or equal to the risk threshold value Q, namely Fhz is greater than or equal to Q, immediately sending out an early warning notice at the moment, and evacuating assembly staff to leave the site in time;
if the wind load Fhz is smaller than the risk threshold value Q, namely Fhz is smaller than Q, the condition that early warning notification is not required to be sent out at the moment is indicated, and the assembly personnel continue to execute the assembly operation.
Preferably, the height value Gdz is associated with the wind load Fhz and is dimensionless processed to obtain a support structure stability assessment coefficient Wgxs, where the support structure stability assessment coefficient Wgxs is obtained by the following formula:
wherein Wdcz is represented as a temperature difference, nhz is represented as an internal load, a 1 、a 2 、a 3 And a 4 Represented by height value Gdz, wind load Fhz, temperature difference Wdcz and internal load Nhz, respectivelyWherein 0.15.ltoreq.a 1 ≤0.22，0.26≤a 2 ≤0.38，0.09≤a 3 ≤0.12，0.15≤a 4 Not more than 0.28, and not more than 0.70 a 1 +a 2 +a 3 +a 4 ≤1.0。
Preferably, the cross-sectional area Jmj is related to the elastic modulus Txlz, and after dimensionless processing, a deformation degree coefficient Xbxs is obtained, where the deformation degree coefficient Xbxs is obtained by the following formula:
Where Gjcd is expressed as the member length, α 1 And alpha 2 Are all expressed as preset proportionality coefficients, wherein alpha is more than or equal to 0.28 1 ≤0.45，0.32≤α 2 Less than or equal to 0.55, and less than or equal to 0.70 alpha 1 +α 2 And C is equal to or less than 1.0 and is expressed as a second correction constant.
Preferably, the maintenance channel width Yk is reserved in design 0 And trimming the post-repair channel width Yk 1 In contrast, the channel factor Tdz is calculated and obtained, the channel factor Tdz being obtained by the following formula:
and correlating the channel factor Tdz with the connection stability value Ljz, and obtaining a maintenance coefficient Whxs after dimensionless processing, where the maintenance coefficient Whxs is obtained by the following formula:
wherein b is 1 And b 2 Are all expressed as preset proportionality coefficients, wherein b is more than or equal to 0.10 1 ≤0.50，0.12≤b 2 Less than or equal to 0.50, and less than or equal to 0.25 b 1 +b 2 And less than or equal to 1.0, wherein Y is expressed as a third correction constant.
Preferably, the report management module comprises a report unit and an acceptance unit;
the reporting unit acquires a security level report, wherein the security level report comprises the following specific contents:
if the safety evaluation index Aqzs is greater than the evaluation threshold K, namely, when Aqzs is greater than K, a red early warning notice is sent out, and continuous flashing is carried out until a management department presses a pause key to indicate that the assembled building is in an abnormal state, emergency safety measures are immediately implemented at the moment, and the emergency safety measures comprise immediate shutdown, limited use and structural inspection;
If the safety evaluation index Aqzs is equal to the evaluation threshold value K, namely aqzs=k, an orange early warning notification is sent out and the safety evaluation index Aqzs flashes for 10 times, which means that the fabricated building is in a normal state, and at the moment, monitoring and regular inspection are enhanced, and preventive measures are taken;
if the safety evaluation index Aqzs is smaller than the evaluation threshold K, namely, when the Aqzs is smaller than K, a green early warning notice is sent out and flashes for 3 times, the assembled building is indicated to be in a normal state, at the moment, regular maintenance and overhaul planning is executed, a long-term maintenance plan is considered to be formulated, and regular structural health check is carried out, so that sustainable maintenance of safety is ensured;
the acceptance unit is used for reporting according to the security level, and if the system sends out an orange early warning notice or a green early warning notice, the acceptance operation can be performed at the moment; if the system sends out a red early warning notice, the acceptance check operation cannot be carried out at the moment, and the adjustment scheme of the fine adjustment part Oi needs to be re-formulated until the system sends out an orange early warning notice or a green early warning notice, and the party can carry out the acceptance check.
Preferably, a BIM-based fabricated building management method, comprising the steps of,
firstly, building a BIM digital model by using a model building module, and collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage to produce a design data set;
Secondly, the position of the fine tuning coordinate is found out through a field consideration module and marked as a fine tuning position Oi, and after fine tuning, relevant supporting state data information and relevant deformation data information of the fine tuning position Oi are detected in real time;
classifying the fine tuning through a fine tuning assembly module, including fine tuning of connection modes and fine tuning of positions of components in horizontal and vertical directions, monitoring whether subsequent maintenance of the fabricated building is interfered or not on the basis of fine tuning assembly, and recording relevant deviation data information before and after fine tuning of the fabricated building;
analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology through a building safety analysis module, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, and fitting to obtain a safety evaluation index Aqzs;
and fifthly, comparing and analyzing the evaluation threshold K and the safety evaluation index Aqzs through a report management module to obtain a safety grade report, and judging whether acceptance operation can be performed according to a report result.
(III) beneficial effects
The invention provides a BIM-based assembly type building management method and system, which have the following beneficial effects:
(1) The model creation module creates a digital model by using a BIM technology, acquires component material data, connection state data and layout data in a design result in real time, effectively improves design efficiency, and ensures that a design data set is accurately embedded into the BIM digital model through real-time transmission; the field examination module examines the foundation and the topography state in the field at the assembly stage, marks and detects the related supporting state and deformation data in real time by locking the coordinate position of the Oi at the fine tuning position, and provides accurate and real-time field information for fine tuning treatment; meanwhile, classifying operations of the Oi at the fine tuning position, after fine tuning, monitoring the intervention of subsequent overhaul on the building by the system, recording related deviation data, and judging whether the fine tuning operation can influence the overall stability of the fabricated building; and comprehensively obtaining a safety evaluation index Aqzs, comparing and analyzing the safety evaluation index Aqzs with an evaluation threshold K to generate a safety grade report, and enabling a report support management department to judge whether checking and accepting operation can be carried out or not, so that measures can be taken in time to ensure the safety of the building. In a word, the system is subjected to fine adjustment on an ideal design, so that an actual assembly site is rationalized, related data can be comprehensively evaluated through a building safety analysis module while the fine adjustment state is tracked in real time, whether a building is in a comprehensive safety state after fine adjustment is evaluated, a fine adjustment event is emphasized, and the comprehensive control of the safety of an assembled building is further improved.
(2) The fine adjustment assembly module provides comprehensive data support for fine analysis of fine adjustment operation, monitoring of component change and real-time monitoring of maintenance channel width through cooperative work of the category distinguishing unit and the overhaul intervention unit, and the system provides comprehensive and scientific management means for assembled buildings from design to on-site fine adjustment to safety evaluation, and improves safety and stability of the buildings.
Drawings
FIG. 1 is a block flow diagram of a BIM-based fabricated building management system of the present invention;
fig. 2 is a schematic flow chart of steps of a building management method based on BIM according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the building field today, BIM-based technology is one of the important innovations in the building industry. BIM technology provides an all-round design, collaboration, and management tool by creating, managing, and analyzing three-dimensional models of building information. With the rise of the fabricated building, BIM technology is gradually integrated into the field, and provides a new opportunity for the development of the building.
In the prior art, a fabricated building is a building system based on factory prefabricated parts and assembled on site. The construction method greatly improves engineering efficiency, reduces cost and is widely applied in the construction industry. In the assembly type building design and construction process, the application of BIM technology provides an efficient collaboration platform for projects, promotes information sharing and communication, and improves the level of overall project management.
However, during the actual assembly process, the trimming operation becomes a part of the unavoidable. Temporary fine tuning is often caused by field conditions, terrain differences or minor deviations between the design and the actual situation, and may involve fine tuning of the connection of the components, fine tuning of the position and adjustment of the support structure. Although the initial aim of fine tuning was to develop in the direction of solving the practical problems, the safety of the building caused by fine tuning is not quite as great before construction and later use. This introduces a problem that needs to be solved urgently: in the fine tuning process, how to ensure the safety and stability of the fabricated building, the current management system may have a shortage, and the influence of the fine tuning process cannot be comprehensively and effectively monitored.
Example 1
Referring to fig. 1, the invention provides a building information management system based on BIM, which comprises a model creation module, a field consideration module, a fine adjustment assembly module, a building safety analysis module and a report management module;
the model creation module is used for creating a BIM digital model by using a BIM technology, collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage, producing a design data set, and transmitting the design data set into the BIM digital model in real time; wherein the components are prefabricated and include walls, floors, columns, and the like;
the on-site examining module is used for examining on-site foundation and topography states in the assembly stage in the field, locking the position of the fine tuning coordinate and marking the position as a fine tuning position Oi when fine tuning treatment is needed to be carried out on the local part of the assembled building, and detecting related supporting state data information and related deformation data information of the fine tuning position Oi in real time after fine tuning;
the fine adjustment assembly module is used for classifying fine adjustment operations executed by the fine adjustment part Oi, wherein the fine adjustment operation comprises connection mode fine adjustment and fine adjustment of the positions of the components in the horizontal and vertical directions, monitors whether subsequent maintenance on the assembled building is interfered or not on the basis of fine adjustment assembly, and records related deviation data information before and after fine adjustment on the assembled building;
The building safety analysis module is used for extracting characteristics of related support state data information, related deformation data information and related deviation data information, analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, fitting to obtain a safety evaluation index Aqzs after dimensionless processing, wherein the safety evaluation index Aqzs is obtained by the following formula:
in the formula, h 1 、h 2 And h 3 The preset proportionality coefficients are respectively expressed as a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs and a maintenance coefficient Whxs, wherein h is more than or equal to 0.16 1 ≤0.36，0.20≤h 2 ≤0.45，0.08≤h 3 Not more than 0.19, and not more than 0.50 h 1 +h 2 +h 3 R is less than or equal to 1.0 and is expressed as a first correction constant;
the report management module is used for presetting an evaluation threshold K, comparing and analyzing the evaluation threshold K with the safety evaluation index Aqzs, obtaining a safety level report, and judging whether the acceptance operation can be carried out according to a report result.
In the system operation, a model creation module creates a digital model by using a BIM technology, acquires component material data, connection state data and layout data in a design result in real time, effectively improves the design efficiency, and ensures that a design data set is accurately embedded into the BIM digital model through real-time transmission; the field examination module examines the foundation and the topography state in the field at the assembly stage, marks and detects the related supporting state and deformation data in real time by locking the coordinate position of the Oi at the fine tuning position, and provides accurate and real-time field information for fine tuning treatment; meanwhile, classifying operations of the Oi at the fine tuning position, including connection mode fine tuning and horizontal and vertical fine tuning, after fine tuning, monitoring the interference of subsequent overhaul on the building by the system, recording related deviation data, and judging whether the fine tuning operation can affect the overall stability of the assembled building; and comprehensively obtaining a safety evaluation index Aqzs, and comparing and analyzing the safety evaluation index Aqzs with an evaluation threshold K to generate a safety level report.
Example 2
Referring to fig. 1, the following details are: the model creation module comprises a creation unit and a design unit;
the creation unit is used for creating a BIM digital model by using a BIM technology, and transmitting a design data set, related support state data information, related deformation data information and related deviation data information into the BIM digital model so as to provide a visualized building information interface;
the design unit is used for designing and recording related component material data, related component connection state data and component layout data in the assembly type building design stage, wherein the related component material data comprises material types, poisson ratios, tensile strength, compressive strength and material density; the system is more targeted and accurate by designing the units to provide accurate underlying data for subsequent building safety analysis.
Wherein poisson's ratio refers to the degree of lateral shrinkage of a component when subjected to a force;
the related component connection state data comprises assembly among components in a mode of bolts, welding, bonding and erecting; the component layout data includes component setting positions, setting numbers, setting directions, and setting sizes.
The field consideration module comprises a fine adjustment positioning unit and an assembly acquisition unit;
the fine adjustment positioning unit is used for timely acquiring the position of the fine adjustment part Oi aiming at the fine adjustment phenomenon required to be performed in the assembly stage and reporting the position of the fine adjustment part Oi to the management department for making a comprehensive statistical report;
the assembly acquisition unit is used for monitoring and acquiring relevant supporting state data information and relevant deformation data information of the fine tuning point Oi in real time, wherein the relevant supporting state data information comprises a height value Gdz of the fine tuning point Oi, a temperature difference Wdcz, wind load Fhz, supporting rigidity and supporting state;
wherein, the supporting rigidity refers to the rigidity of the member when supporting, and comprises the horizontal direction and the vertical direction;
the supporting state refers to whether the component is in a normal working state or not when being supported or whether maintenance is needed or not;
the relevant deformation data information includes the cross-sectional area Jmj of the component of the trim Oi, the modulus of elasticity Txlz, the component length Gjcd, and the crack width.
In the embodiment, the creation unit creates a comprehensive digital model through a BIM technology, and transmits a design data set, supporting state data, deformation data and deviation data to the BIM digital model, so that an intuitive visual building information interface is provided, and a management department can comprehensively know the design and real-time state of the fabricated building; the fine adjustment positioning unit timely acquires the position of the fine adjustment position Oi, reports the position of the fine adjustment position Oi to the management department, and performs a statistical report, so that the management department can quickly know the occurrence and distribution of the fine adjustment phenomenon, and the fine adjustment process is avoided being ignored. The assembly acquisition unit monitors and acquires the related supporting state data, deformation data and related deformation data information of the trimming part Oi in real time, provides sufficient information for building safety analysis, and is favorable for quickly judging the influence of trimming.
Example 3
Referring to fig. 1, the following details are: the fine adjustment assembly module comprises a category distinguishing unit and an overhaul intervention unit;
the classification unit is used for classifying the fine adjustments generated in the assembly stage so as to perform specific analysis on different fine adjustment types, collecting relevant support state data information in real time according to the fine adjustments of the connection mode types, and collecting relevant deformation data information in real time according to the fine adjustments of the positions of the components in the horizontal and vertical directions;
the maintenance intervention unit is used for monitoring and collecting component setting changes before and after fine adjustment assembly and obtaining related deviation data information, wherein the related deviation data information comprises a reserved maintenance channel width Yk in design 0 Maintenance of the channel width Yk after trimming 1 And the change brought by the connection mode of the components, so that the management department can know the actual condition of the maintenance channel after fine adjustment at any time.
In this embodiment, by collecting the support state data information and the deformation data information of the component position fine adjustment in real time in the connection mode fine adjustment, the system can deeply understand the influence of fine adjustment on the support structure and the component, and provide detailed data support for subsequent security evaluation. The overhaul intervention unit is used for judging whether the fine adjustment affects later maintenance and overhaul tasks or not on the basis of the fine adjustment, and is helpful for timely finding out changes of the fine adjustment on the positions and the connection modes of the components. The change of the width of the maintenance channel before and after fine adjustment is monitored, relevant deviation data information is collected in real time, and the influence of fine adjustment on the maintenance channel is judged.
Example 4
Referring to fig. 1, the following details are: presetting a risk threshold value Q, comparing and analyzing the risk threshold value Q with the wind load Fhz, and judging whether an early warning notification needs to be sent out or not, and enabling evacuation assembly personnel to leave the site timely;
if the wind load Fhz is greater than or equal to the risk threshold value Q, namely Fhz is greater than or equal to Q, the early warning notification is immediately sent out, and the assembly personnel are evacuated to leave the site in time, so that the early warning mechanism is quickly started when the risk reaches the critical level, the assembly personnel are notified in advance, the assembly personnel are ensured to leave the site in time, and the safety of the personnel is ensured.
If the wind load Fhz is smaller than the risk threshold Q, that is, if Fhz is smaller than Q, it means that no warning notification is required to be sent at this time, and the assembly personnel will continue to perform the assembly operation, which is helpful to reduce unnecessary interference to the assembly operation, and ensure that the assembly personnel can continuously perform the operation.
Wherein wind load Fhz is typically monitored and collected by a wind speed sensor capable of measuring the wind speed in the air, and there is a direct relationship between the intensity of the wind load and the wind speed, the wind load Fhz is obtained by the following formula: fhz=0.5×ρ×v2, where ρ is denoted as air density and V is denoted as wind speed.
In the embodiment, the risk threshold value Q is preset, so that a clear standard is provided for risk management of the fabricated building, reasonable expectation of wind load Fhz is established, and a management department can sense potential risks more sharply; and carrying out real-time comparison analysis on the wind load Fhz and a preset risk threshold value Q, and judging the current risk level so that the system can carry out real-time risk analysis, judging whether the current wind load Fhz reaches or exceeds the preset risk threshold value Q according to actual conditions, and providing a safer and more controllable operating environment for the assembly type building construction site.
Example 5
Referring to fig. 1, the following details are: correlating the height value Gdz with the wind load Fhz, and obtaining a support structure stability assessment coefficient Wgxs after dimensionless processing, wherein the support structure stability assessment coefficient Wgxs is obtained by the following formula:
wherein Wdcz is represented as a temperature difference, nhz is represented as an internal load, a 1 、a 2 、a 3 And a 4 Preset proportionality coefficients expressed as altitude value Gdz, wind load Fhz, temperature difference Wdcz and internal load Nhz, respectively, wherein 0.15.ltoreq.a 1 ≤0.22，0.26≤a 2 ≤0.38，0.09≤a 3 ≤0.12，0.15≤a 4 Not more than 0.28, and not more than 0.70 a 1 +a 2 +a 3 +a 4 ≤1.0。
The height value Gdz refers to the height of the member to be finely adjusted from the ground, and is obtained by measuring the measured height by a laser range finder;
The temperature difference Wdcz is acquired by a temperature sensor;
the internal load Nhz is acquired by a load cell and mounted on a support structure for measuring the internal load.
Correlating the cross-sectional area Jmj with the elastic modulus Txlz, and obtaining a deformation degree coefficient Xbxs after dimensionless processing, wherein the deformation degree coefficient Xbxs is obtained by the following formula:
where Gjcd is expressed as the member length, α 1 And alpha 2 Are all expressed as preset proportionality coefficients, wherein alpha is more than or equal to 0.28 1 ≤0.45，0.32≤α 2 Less than or equal to 0.55, and less than or equal to 0.70 alpha 1 +α 2 And C is equal to or less than 1.0 and is expressed as a second correction constant.
The length Gjcd of the component refers to the length of the component which is finely adjusted, and the length of the component is acquired by a laser range finder;
cross-sectional area Jmj refers to the area of the cross-section of the member being trimmed, itself, as measured by a shape measuring instrument;
the elastic modulus Txlz represents an elastic deformation parameter of the component when the component is stressed, the elastic modulus Txlz is the ratio between stress and strain, the higher the elastic modulus Txlz is, the higher the rigidity of the component is, the smaller the deformation is, and the elastic deformation parameter is obtained by monitoring through a mechanical sensor and a strain sensor: wherein the mechanical sensor is used for measuring external force or internal stress to be applied after measurement; the strain sensor is used for measuring the strain of the component, and when the component is subjected to external force, the generated strain can cause physical change in the strain sensor and finally be converted into an electric signal.
The width Yk of the maintenance channel is reserved in design 0 And trimming the post-repair channel width Yk 1 In contrast, the channel factor Tdz is calculated and obtained, the channel factor Tdz being obtained by the following formula:
and correlating the channel factor Tdz with the connection stability value Ljz, and obtaining a maintenance coefficient Whxs after dimensionless processing, where the maintenance coefficient Whxs is obtained by the following formula:
wherein b is 1 And b 2 Are all expressed as preset proportionality coefficients, wherein b is more than or equal to 0.10 1 ≤0.50，0.12≤b 2 Less than or equal to 0.50, and less than or equal to 0.25 b 1 +b 2 And less than or equal to 1.0, wherein Y is expressed as a third correction constant.
The width Yk of the maintenance channel is reserved in the design process 0 And post-trim maintenance channel width Yk 1 All are acquired by a laser range finder;
the connection stability value Ljz is a parameter that changes when the component at the fine adjustment position Oi changes in the connection mode, and in the aspect of later maintenance of the component, when the component is fine-adjusted from the original movable connection to the fixed connection, the value is 1; when the component is finely adjusted from the original fixed connection to the movable connection, the numerical value is 0; when the connection mode of the components is not changed, the numerical value is 0;
in this embodiment, the support state change condition of Oi at the fine tuning position after fine tuning is reflected by the support structure stability evaluation coefficient Wgx; the deformation degree coefficient Xbaxs reflects the deformation degree of the component and provides scientific basis for the evaluation of the deformation degree. The change condition of the maintenance channel is reflected by calculating the channel factor Tdz, and a quantization index is provided for convenience of maintenance and overhaul.
Example 6
Referring to fig. 1, the following details are: the report management module comprises a report unit and an acceptance unit;
the reporting unit acquires a security level report, wherein the security level report comprises the following specific contents:
if the safety evaluation index Aqzs is greater than the evaluation threshold K, namely, when Aqzs is greater than K, a red early warning notice is sent out, and continuous flashing is carried out until a management department presses a pause key to indicate that the assembled building is in an abnormal state, emergency safety measures are immediately implemented at the moment, including immediate shutdown, limited use and structural inspection are carried out, so that the safety of personnel and the building is ensured;
if the safety evaluation index Aqzs is equal to the evaluation threshold value K, namely aqzs=k, an orange early warning notice is sent out and blinks for 10 times, the safety evaluation index Aqzs is indicated as the assembled building is in a normal state, monitoring and regular checking are enhanced at the moment, preventive measures are taken, potential safety problems are ensured to be treated in time, and the situation is prevented from deteriorating;
if the safety evaluation index Aqzs is smaller than the evaluation threshold K, namely, when the Aqzs is smaller than K, a green early warning notice is sent out and flashes for 3 times, the assembled building is indicated to be in a normal state, at the moment, regular maintenance and overhaul planning is executed, a long-term maintenance plan is considered to be formulated, and regular structural health check is carried out, so that sustainable maintenance of safety is ensured;
The acceptance unit is used for reporting according to the security level, and if the system sends out an orange early warning notice or a green early warning notice, the acceptance operation can be performed at the moment; if the system sends out a red early warning notice, the acceptance check operation cannot be carried out at the moment, and the adjustment scheme of the fine adjustment part Oi needs to be re-formulated until the system sends out an orange early warning notice or a green early warning notice, and the party can carry out the acceptance check.
Example 7
Referring to fig. 1 and 2, the following details are: a BIM-based fabricated building management method comprises the following steps,
firstly, building a BIM digital model by using a model building module, and collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage to produce a design data set;
secondly, the position of the fine tuning coordinate is found out through a field consideration module and marked as a fine tuning position Oi, and after fine tuning, relevant supporting state data information and relevant deformation data information of the fine tuning position Oi are detected in real time;
classifying the fine tuning through a fine tuning assembly module, including fine tuning of connection modes and fine tuning of positions of components in horizontal and vertical directions, monitoring whether subsequent maintenance of the fabricated building is interfered or not on the basis of fine tuning assembly, and recording relevant deviation data information before and after fine tuning of the fabricated building;
Analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology through a building safety analysis module, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, and fitting to obtain a safety evaluation index Aqzs;
and fifthly, comparing and analyzing the evaluation threshold K and the safety evaluation index Aqzs through a report management module to obtain a safety grade report, and judging whether acceptance operation can be performed according to a report result.
In this embodiment, in combination with the contents of the first to fifth steps, firstly, a digital model is created by the model creation module, and key data is collected from the design stage to form a design data set, thereby laying the foundation for subsequent management. Secondly, the on-site consideration module ensures the stability of the Oi at the fine adjustment position through on-site investigation and fine adjustment of the assembly position, detects relevant supporting states and deformation data in real time, and provides accurate input for safety evaluation. The fine adjustment assembly module classifies fine adjustment, monitors subsequent overhaul interventions, records deviation before and after fine adjustment, strengthens real-time monitoring of potential problems, and provides scientific basis for maintenance and management through the safety evaluation index Aqzs. Finally, the evaluation threshold K is compared with the safety evaluation index Aqzs through the report management module to generate a safety grade report, so that the comprehensive control of the building safety is realized.
Examples: a worksite incorporating a BIM-based building management system, the following are examples of a worksite:
and (3) data acquisition: wind load Fhz is 25; height value Gdz is 36; temperature (temperature)The difference Wdcz is 6; the internal load Nhz is 151; a, a 1 0.20; a, a 2 0.28; a, a 3 0.10; a, a 4 0.16; cross-sectional area Jmj is 35.2; the modulus of elasticity Txlz is 16.6; the member length Gjcd is 48.7; alpha 1 0.30; alpha 2 0.42; c is 0.11; reserved maintenance channel width Yk during design 0 1.6; after trimming the maintenance channel width Yk 1 1.4; the connection stability value Ljz is 1; b 1 0.15; b 2 0.33; y is 0.89; h is a 1 0.20; h is a 2 0.22; h is a 3 0.10; r is 0.87;
from the above data, the following calculations can be made:
if the risk threshold value Q is 20, if the wind load Fhz is greater than the risk threshold value Q, namely Fhz is more than Q, the early warning notification is immediately sent out, and the assembly personnel are evacuated to leave the site in time;
stability evaluation coefficient of support structure
Coefficient of degree of deformation
Channel factor
Maintenance coefficient
Safety assessment index
If the evaluation threshold K is 10, the safety evaluation index Aqzs is greater than the evaluation threshold K, that is, aqzs > K, a red warning notification is sent out, and continuous flashing is performed until the management department presses the pause key, which indicates that the fabricated building is in an abnormal state, and at this time, emergency safety measures including immediate shutdown, restricted use and structural inspection are immediately implemented.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a building management system based on BIM which characterized in that: the system comprises a model creation module, a field consideration module, a fine adjustment assembly module, a building safety analysis module and a report management module;
the model creation module is used for creating a BIM digital model by using a BIM technology, collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage, producing a design data set, and transmitting the design data set into the BIM digital model in real time;
the on-site examining module is used for examining on-site foundation and topography states in the assembly stage in the field, locking the position of the fine tuning coordinate and marking the position as a fine tuning position Oi when fine tuning treatment is needed to be carried out on the local part of the assembled building, and detecting related supporting state data information and related deformation data information of the fine tuning position Oi in real time after fine tuning;
The fine adjustment assembly module is used for classifying fine adjustment operations executed by the fine adjustment part Oi, wherein the fine adjustment operation comprises connection mode fine adjustment and fine adjustment of the positions of the components in the horizontal and vertical directions, monitors whether subsequent maintenance on the assembled building is interfered or not on the basis of fine adjustment assembly, and records related deviation data information before and after fine adjustment on the assembled building;
the building safety analysis module is used for extracting characteristics of related support state data information, related deformation data information and related deviation data information, analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, fitting to obtain a safety evaluation index Aqzs after dimensionless processing, wherein the safety evaluation index Aqzs is obtained by the following formula:
in the formula, h 1 、h 2 And h 3 The preset proportional coefficients respectively expressed as a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs and a maintenance coefficient Whxs, and R is expressed as a first correction constant;
the report management module is used for presetting an evaluation threshold K, comparing and analyzing the evaluation threshold K with the safety evaluation index Aqzs, obtaining a safety level report, and judging whether the acceptance operation can be carried out according to a report result.
2. A BIM-based fabricated building management system according to claim 1, wherein: the model creation module comprises a creation unit and a design unit;
the creation unit is used for creating a BIM digital model by using a BIM technology, and transmitting a design data set, related support state data information, related deformation data information and related deviation data information into the BIM digital model so as to provide a visualized building information interface;
the design unit is used for designing and recording related component material data, related component connection state data and component layout data in the assembly type building design stage, wherein the related component material data comprises material types, poisson ratios, tensile strength, compressive strength and material density;
the related component connection state data comprises assembly among components in a mode of bolts, welding, bonding and erecting; the component layout data includes component setting positions, setting numbers, setting directions, and setting sizes.
3. A BIM-based fabricated building management system according to claim 1, wherein: the field consideration module comprises a fine adjustment positioning unit and an assembly acquisition unit;
The fine adjustment positioning unit is used for timely acquiring the position of the fine adjustment part Oi aiming at the fine adjustment phenomenon required to be performed in the assembly stage and reporting the position of the fine adjustment part Oi to the management department for making a comprehensive statistical report;
the assembly acquisition unit is used for monitoring and acquiring relevant supporting state data information and relevant deformation data information of the fine tuning point Oi in real time, wherein the relevant supporting state data information comprises a height value Gdz of the fine tuning point Oi, a temperature difference Wdcz, wind load Fhz, supporting rigidity and supporting state;
the relevant deformation data information includes the cross-sectional area Jmj of the component of the trim Oi, the modulus of elasticity Txlz, the component length Gjcd, and the crack width.
4. A BIM-based fabricated building management system according to claim 3, wherein: the fine adjustment assembly module comprises a category distinguishing unit and an overhaul intervention unit;
the classification unit is used for classifying fine adjustments generated in the assembly stage, collecting related support state data information in real time according to the fine adjustments of the connection modes, and collecting related deformation data information in real time according to the fine adjustments of the positions of the components in the horizontal and vertical directions;
the maintenance intervention unit is used for monitoring and collecting component setting changes before and after fine adjustment assembly and obtaining related deviation data information, wherein the related deviation data information comprises a reserved maintenance channel width Yk in design 0 Maintenance of the channel width Yk after trimming 1 And the variation in the manner of connection of the components.
5. A BIM-based fabricated building management system according to claim 3, wherein: presetting a risk threshold value Q, comparing and analyzing the risk threshold value Q with the wind load Fhz, and judging whether an early warning notification needs to be sent out or not, and enabling evacuation assembly personnel to leave the site timely;
if the wind load Fhz is greater than or equal to the risk threshold value Q, namely Fhz is greater than or equal to Q, immediately sending out an early warning notice at the moment, and evacuating assembly staff to leave the site in time;
if the wind load Fhz is smaller than the risk threshold value Q, namely Fhz is smaller than Q, the condition that early warning notification is not required to be sent out at the moment is indicated, and the assembly personnel continue to execute the assembly operation.
6. The BIM-based fabricated building management system of claim 5, wherein: correlating the height value Gdz with the wind load Fhz, and obtaining a support structure stability assessment coefficient Wgxs after dimensionless processing, wherein the support structure stability assessment coefficient Wgxs is obtained by the following formula:
wherein Wdcz is represented as a temperature difference, nhz is represented as an internal load, a 1 、a 2 、a 3 And a 4 Preset proportionality coefficients expressed as altitude value Gdz, wind load Fhz, temperature difference Wdcz and internal load Nhz, respectively, wherein 0.15.ltoreq.a 1 ≤0.22，0.26≤a 2 ≤0.38，0.09≤a 3 ≤0.12，0.15≤a 4 Not more than 0.28, and not more than 0.70 a 1 +a 2 +a 3 +a 4 ≤1.0。
7. A BIM-based fabricated building management system according to claim 3, wherein: correlating the cross-sectional area Jmj with the elastic modulus Txlz, and obtaining a deformation degree coefficient Xbxs after dimensionless processing, wherein the deformation degree coefficient Xbxs is obtained by the following formula:
where Gjcd is expressed as the member length, α 1 And alpha 2 Are all expressed as preset proportionality coefficients, wherein alpha is more than or equal to 0.28 1 ≤0.45，0.32≤α 2 Less than or equal to 0.55, and less than or equal to 0.70 alpha 1 +α 2 And C is equal to or less than 1.0 and is expressed as a second correction constant.
8. A BIM-based fabricated building management system according to claim 1, wherein: the width Yk of the maintenance channel is reserved in design 0 And trimming the post-repair channel width Yk 1 In contrast, the channel factor Tdz is calculated and obtained, the channel factor Tdz being obtained by the following formula:
and correlating the channel factor Tdz with the connection stability value Ljz, and obtaining a maintenance coefficient Whxs after dimensionless processing, where the maintenance coefficient Whxs is obtained by the following formula:
wherein b is 1 And b 2 Are all expressed as preset proportionality coefficients, wherein b is more than or equal to 0.10 1 ≤0.50，0.12≤b 2 Less than or equal to 0.50, and less than or equal to 0.25 b 1 +b 2 And less than or equal to 1.0, wherein Y is expressed as a third correction constant.
9. A BIM-based fabricated building management system according to claim 1, wherein: the report management module comprises a report unit and an acceptance unit;
the reporting unit acquires a security level report, wherein the security level report comprises the following specific contents:
if the safety evaluation index Aqzs is greater than the evaluation threshold K, namely, when Aqzs is greater than K, a red early warning notice is sent out, and continuous flashing is carried out until a management department presses a pause key to indicate that the assembled building is in an abnormal state, emergency safety measures are immediately implemented at the moment, and the emergency safety measures comprise immediate shutdown, limited use and structural inspection;
if the safety evaluation index Aqzs is equal to the evaluation threshold value K, namely aqzs=k, an orange early warning notification is sent out and the safety evaluation index Aqzs flashes for 10 times, which means that the fabricated building is in a normal state, and at the moment, monitoring and regular inspection are enhanced, and preventive measures are taken;
if the safety evaluation index Aqzs is smaller than the evaluation threshold K, namely, when the Aqzs is smaller than K, a green early warning notice is sent out and flashes for 3 times, the assembled building is indicated to be in a normal state, at the moment, regular maintenance and overhaul planning is executed, a long-term maintenance plan is considered to be formulated, and regular structural health check is carried out, so that sustainable maintenance of safety is ensured;
The acceptance unit is used for reporting according to the security level, and if the system sends out an orange early warning notice or a green early warning notice, the acceptance operation can be performed at the moment; if the system sends out a red early warning notice, the acceptance check operation cannot be carried out at the moment, and the adjustment scheme of the fine adjustment part Oi needs to be re-formulated until the system sends out an orange early warning notice or a green early warning notice, and the party can carry out the acceptance check.
10. A building information management method based on BIM, comprising a building information management system based on BIM as claimed in any one of claims 1 to 9, wherein: comprises the steps of,
firstly, building a BIM digital model by using a model building module, and collecting related component material data, related component connection state data and component layout data in a design result in an assembly type building design stage to produce a design data set;
secondly, the position of the fine tuning coordinate is found out through a field consideration module and marked as a fine tuning position Oi, and after fine tuning, relevant supporting state data information and relevant deformation data information of the fine tuning position Oi are detected in real time;
classifying the fine tuning through a fine tuning assembly module, including fine tuning of connection modes and fine tuning of positions of components in horizontal and vertical directions, monitoring whether subsequent maintenance of the fabricated building is interfered or not on the basis of fine tuning assembly, and recording relevant deviation data information before and after fine tuning of the fabricated building;
Analyzing and calculating to obtain a support structure stability evaluation coefficient Wgxs, a deformation degree coefficient Xbxs of a component and a maintenance coefficient Whxs by using a BIM technology through a building safety analysis module, correlating the support structure stability evaluation coefficient Wgxs, the deformation degree coefficient Xbxs and the maintenance coefficient Whxs, and fitting to obtain a safety evaluation index Aqzs;
and fifthly, comparing and analyzing the evaluation threshold K and the safety evaluation index Aqzs through a report management module to obtain a safety grade report, and judging whether acceptance operation can be performed according to a report result.
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