CN115482650A - Concrete pouring auxiliary system based on BIM - Google Patents

Concrete pouring auxiliary system based on BIM Download PDF

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Publication number
CN115482650A
CN115482650A CN202211328816.8A CN202211328816A CN115482650A CN 115482650 A CN115482650 A CN 115482650A CN 202211328816 A CN202211328816 A CN 202211328816A CN 115482650 A CN115482650 A CN 115482650A
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temperature
pouring
concrete
information
early warning
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仲领振
程雨
杜慧
代楠楠
戴娜
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Anhui Longzhen Construction Co ltd
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Anhui Longzhen Construction Co ltd
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/182Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00Three dimensional [3D] modelling, e.g. data description of 3D objects

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Abstract

The invention relates to the technical field of pouring, and discloses a concrete pouring auxiliary system based on BIM.A temperature prediction model is constructed based on BIM, design information can be input into the prediction model before pouring, a theoretical curve of pouring temperature change in the pouring process is calculated by combining the design information, the temperature in the pouring process is calculated, a section with larger temperature influence in the pouring process of a pouring block can be obtained, then temperature monitoring points and stress monitoring points are arranged on the sections according to the predicted section, the temperature and stress changes in the places in the pouring process are conveniently monitored in real time, the temperature change curve in the subsequent pouring process is predicted by inputting the actually measured pouring block temperature information into the temperature prediction model and combining the design information, the curve is compared with the theoretical curve, an early warning module carries out early warning with different degrees according to the compared result, corresponding measures are taken in advance to control the temperature change of the pouring block, the highest temperature is limited, and the risk of temperature crack generation is reduced.

Description

Concrete pouring auxiliary system based on BIM
Technical Field
The invention relates to the technical field of pouring, in particular to a concrete pouring auxiliary system based on BIM.
Background
The concrete pouring refers to a process of pouring concrete into a mold until the concrete is plasticized, in the civil engineering and building engineering, materials such as concrete are put into the mold to form a preset shape, the free height of the concrete is not more than 2m when the concrete is poured, and corresponding measures are taken when the free height of the concrete exceeds 3 m.
The roller compacted concrete dam has the advantages of less cement consumption, lower heat insulation and temperature rise, mechanized construction and the like. However, the pulverized fuel ash is mixed in the roller compacted concrete in a large amount, and the roller compacted concrete gravity dam usually adopts a pouring mode of large warehouse surface, through warehouse and balanced continuous rising, so that the hydration heat dissipation is delayed. In addition, factors such as weather and casting season in the construction stage all influence the temperature distribution of the concrete casting blocks, so that large temperature stress is generated, the structural internal stress of the casting blocks is damaged, and hidden dangers are buried for safe operation of the dam.
The existing concrete pouring auxiliary systems mostly only monitor the material temperature and the temperature of a pouring opening during pouring, and cannot predict the temperature in the pouring process according to the current pouring section temperature.
Disclosure of Invention
The invention aims to provide a concrete pouring auxiliary system based on BIM, and solves the technical problems.
The purpose of the invention can be realized by the following technical scheme:
BIM-based concrete placement assistance system comprising: the system comprises a main controller, a monitoring module, a management module and an early warning module;
the main controller: the monitoring module and the control module are connected and used for controlling the operation of the whole system;
the monitoring module: the main controller is connected with the main controller and is used for collecting related data in the concrete pouring process;
the management module: the device is connected with the main controller and used for predicting the temperature in the concrete pouring process based on the actual measurement information and the design information and then comparing the temperature with the design standard;
the early warning module: and the controller is connected with the main controller and is used for early warning the working personnel when the actual temperature and the actual stress are predicted not to be in the interval of the design standard.
Through the technical scheme, the monitoring module monitors the temperature and the stress in the pouring process in real time by embedding the sensors in the key section, the management module compares a theoretical value calculated through the BIM model with real-time monitoring data and analyzes whether the temperature in the pouring process meets requirements or not, a worker can determine a pouring material cooling scheme according to the comparison result, the early warning module carries out early warning in different degrees according to the comparison result of the theoretical value and the real-time monitoring data, and the worker can select different emergency measures according to different early warning degrees, so that the working efficiency is improved.
As a further description of the solution of the present invention, the working method of said concrete placement assistance system comprises the steps of:
s1, constructing a temperature prediction model and a stress analysis model in a concrete pouring process based on BIM, and introducing the models into a management module of a concrete pouring auxiliary system, wherein a user can change input elements to adapt to concrete pouring blocks of different types;
s2, inputting relevant information of concrete pouring block design into a prediction model;
s3, obtaining an internal temperature change theoretical curve of the pouring block in the pouring process through a temperature prediction model;
s4, acquiring temperature data information in the pouring process in real time at intervals through a monitoring module, and writing the temperature data information into a system database after data processing;
s5, extracting currently acquired data information in real time by a management module, inputting the data information into a temperature prediction model, predicting internal temperature change in a subsequent pouring process, generating a corresponding curve and storing the curve in a system database;
s6, comparing an internal temperature change curve predicted based on the actual measurement information with an internal temperature change theoretical curve calculated based on the design information;
and S7, taking corresponding measures by the staff according to the comparison result.
When the temperature prediction model is used, a temperature prediction model is built based on BIM, the theoretical curve of the internal temperature change of a pouring block is calculated by inputting design information comprising the shape of the pouring block, the elastic modulus of a pouring material, the pouring speed, the flow and other data, the internal temperature change in the pouring process is predicted according to the actually measured information and the design information, a corresponding curve is generated and stored in a system database, then the two curves are compared, and a worker adopts a corresponding cooling scheme according to the comparison result.
As a further description of the solution of the present invention, the method for acquiring temperature information includes the following steps:
s1, analyzing and predicting the key position with large influence of temperature change on a pouring block by a temperature prediction model through input design information;
s2, acquiring the internal temperature of the pouring block in real time by pre-embedding a temperature sensor;
s3, directly processing the acquired internal temperature data by the system through a data processing program, and then packaging and writing the internal temperature data into a system database;
s4, collecting the temperature of the pouring aggregate and the temperature of a discharge hole in real time at one interval by a worker through an infrared temperature detecting instrument;
s5, uploading the collected casting aggregate temperature and the collected discharge port temperature to a server by a worker through mobile equipment;
and S6, the system extracts data in the server, processes the collected casting aggregate temperature and the collected discharge port temperature through a data processing program, packs and writes the processed casting aggregate temperature and the collected discharge port temperature into a system database.
As a further description of the aspect of the present invention, the method of pre-burying the sensor includes: selecting a position of a temperature prediction model which has great influence on a pouring block by the temperature of a pouring material in the pouring process as a temperature monitoring section based on design information, arranging a group of temperature measuring points on each section, burying a group of temperature sensors in each measuring point, configuring an address for each temperature measuring point, and displaying the temperature value of each temperature measuring point according to different addresses of the temperature measuring points.
When the device is used, a worker obtains key positions with large influence on a pouring block due to temperature change through a temperature prediction model based on design information, then the key positions are selected as temperature monitoring sections, a group of temperature sensors are buried in each measuring point, each temperature measuring point is provided with an address, when the sensors do not work, the worker can conveniently trace back a certain sensor, the worker can also collect pouring aggregate temperature and discharge port temperature at one interval in real time through an infrared temperature detecting instrument and input the pouring aggregate temperature and the discharge port temperature into the prediction model, and the internal temperature change curve predicted by the prediction model in the pouring process is more accurate.
As a further description of the scheme of the invention, if the sensors embedded at each measuring point of the pouring auxiliary system do not acquire data for 1 hour continuously, the pouring auxiliary system gives an early warning to the staff through the early warning module to prompt that the sensors at the measuring point have faults.
As a further description of the scheme of the invention, when an internal temperature change theoretical curve calculated based on actual measurement information is compared with an internal temperature change curve predicted based on design information, the highest temperature in the same time region is extracted for comparison;
within the same time zone: if the highest value of the internal temperature predicted based on the actual measurement information is lower than the theoretical highest value of the internal temperature calculated based on the design information, the temperature of the pouring material is normal;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K of the internal temperature calculated based on the design information and is less than or equal to K1 ℃, the early warning module sends out yellow early warning;
if the highest value of the internal temperature predicted based on the actual measurement information exceeds the theoretical highest value K e (K1, K2) of the internal temperature calculated based on the design information, the early warning module sends out orange early warning;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K of the internal temperature calculated based on the design information and is more than K2 ℃, the early warning module sends out red early warning;
and (4) designing different cooling schemes by the staff according to different early warning information, so that the temperature of the pouring material is normal.
During the use, the theoretical curve of inside temperature change that calculates based on actual measurement information compares with the inside temperature change curve based on design information prediction, and according to the result of comparison, the early warning module sends different early warning information, and the staff makes different counter-measures according to different early warning information, designs different cooling scheme, can improve staff's work efficiency.
As a further description of the solution of the present invention, the temperature monitoring section is also a stress monitoring section, a set of strain gauges is embedded at the same time as a set of temperature sensors is embedded at each temperature measuring point, and the strain gauges are also embedded at the same time for monitoring the concrete stress of the casting block, and the formula of the concrete stress-strain relationship is as follows:
σ=e×ε
in the above formula, σ represents the concrete stress value, e represents the concrete elastic modulus, and ε represents the strain value measured by the strain gauge, and the system obtains the concrete stress through the data processing program and stores the concrete stress in the system database.
As further description of the scheme of the invention, the stress analysis model calculates each stress monitoring section theoretical value based on design information, the stress monitoring section theoretical value is compared with the stress value actually measured by the strain gauge, and a worker takes corresponding measures according to the comparison result.
During the use, can judge whether the structural stress of pouring the piece is qualified through the stress value contrast that stress monitoring section theoretical value and strainometer actual measurement come out, the staff takes corresponding measure according to the contrast result.
The invention has the beneficial effects that:
1. according to the invention, a temperature prediction model is constructed based on BIM, design information can be input into the prediction model before pouring, a theoretical curve of pouring temperature change in the pouring process can be calculated by combining the design information, the temperature is calculated in the pouring process, the temperature can be sensed in advance, corresponding measures are taken in advance to control the temperature change of a pouring block, the highest temperature is limited, and the risk of temperature crack generation is reduced.
2. According to the invention, the temperature prediction model is constructed based on BIM, the sections with large temperature influence in the pouring process of the pouring block can be obtained by performing temperature prediction on the pouring process, and then the temperature monitoring points and the stress monitoring points are arranged on the sections according to the predicted sections, so that the temperature and stress changes of the places in the pouring process can be conveniently monitored in real time.
3. According to the invention, the actually measured temperature information of the pouring block is input into the temperature prediction model to predict the temperature change curve of the subsequent pouring process by combining with the design information, the curve is compared with the theoretical curve, the early warning module carries out early warning of different degrees according to the comparison result, and the working personnel adopt different measures according to the early warning of different degrees, so that the working efficiency is improved.
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The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a BIM-based concrete pouring auxiliary system provided in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a concrete pouring auxiliary system based on BIM, including: the system comprises a main controller, a monitoring module, a management module and an early warning module;
the main controller: the monitoring module and the control module are connected and used for controlling the operation of the whole system;
the monitoring module: the main controller is connected with the main controller and is used for collecting related data in the concrete pouring process;
the management module is used for: the device is connected with the main controller and used for predicting the temperature of the concrete pouring process based on the actual measurement information and the design information and then comparing the temperature with the design standard;
the early warning module: and the controller is connected with the main controller and is used for early warning the working personnel when the actual temperature and the actual stress are predicted not to be in the interval of the design standard.
Through the technical scheme, the monitoring module monitors the temperature and the stress in the pouring process in real time by embedding the sensors in the key section, the management module compares a theoretical value calculated through the BIM model with real-time monitoring data and analyzes whether the temperature in the pouring process meets requirements or not, a worker can determine a pouring material cooling scheme according to the comparison result, the early warning module carries out early warning in different degrees according to the comparison result of the theoretical value and the real-time monitoring data, and the worker can select different emergency measures according to different early warning degrees, so that the working efficiency is improved.
As a further description of the solution of the present invention, the working method of the concrete pouring auxiliary system comprises the following steps:
s1, constructing a temperature prediction model and a stress analysis model in a concrete pouring process based on BIM, and introducing the models into a management module of a concrete pouring auxiliary system, wherein a user can change input elements to adapt to concrete pouring blocks of different types;
s2, inputting relevant information of concrete pouring block design into a prediction model;
s3, obtaining an internal temperature change theoretical curve of the pouring block in the pouring process through a temperature prediction model;
s4, acquiring temperature data information in the pouring process in real time at intervals through a monitoring module, and writing the temperature data information into a system database after data processing;
s5, extracting currently acquired data information in real time by a management module, inputting the data information into a temperature prediction model, predicting internal temperature change in a subsequent pouring process, generating a corresponding curve and storing the curve in a system database;
s6, comparing an internal temperature change curve predicted based on the actual measurement information with an internal temperature change theoretical curve calculated based on the design information;
and S7, taking corresponding measures by the staff according to the comparison result.
According to the technical scheme, a temperature prediction model is built based on BIM, the theoretical curve of the internal temperature change of the pouring block is calculated by inputting design information comprising the shape of the pouring block, the elastic modulus of the pouring material, the pouring speed, the flow and other data, the internal temperature change in the pouring process is predicted according to the actually measured information and the design information, a corresponding curve is generated and stored in a system database, the two curves are compared, and a worker adopts a corresponding cooling scheme according to the comparison result.
As a further description of the solution of the present invention, the method for acquiring temperature information includes the following steps:
s1, analyzing and predicting the key position with large influence of temperature change on a pouring block by a temperature prediction model through input design information;
s2, collecting the internal temperature of the pouring block in real time through a pre-buried temperature sensor;
s3, directly processing the acquired internal temperature data by the system through a data processing program, and then packaging and writing the internal temperature data into a system database;
s4, collecting the temperature of the poured aggregate and the temperature of a discharge hole in real time at intervals by a worker through an infrared temperature detection instrument;
s5, uploading the collected casting aggregate temperature and the collected discharge port temperature to a server by a worker through mobile equipment;
and S6, the system extracts data in the server, processes the collected casting aggregate temperature and the collected discharge port temperature through a data processing program, and then packs and writes the processed casting aggregate temperature and the collected discharge port temperature into a system database.
As a further description of the aspect of the present invention, the method of pre-burying the sensor includes: selecting a position of a temperature prediction model which has great influence on a pouring block by the temperature of a pouring material in the pouring process as a temperature monitoring section based on design information, arranging a group of temperature measuring points on each section, burying a group of temperature sensors in each measuring point, configuring an address for each temperature measuring point, and displaying the temperature value of each temperature measuring point according to different addresses of the temperature measuring points.
Through the technical scheme, the working personnel can obtain the key positions with larger influence on the pouring block by the temperature change through the temperature prediction model based on the design information, then the positions are selected as temperature monitoring sections, a group of temperature sensors are buried in each measuring point, each temperature measuring point is provided with an address, when the sensors do not work, the working personnel can conveniently trace back to a certain sensor, and the working personnel can also collect the pouring aggregate temperature and the discharging port temperature at one end of each interval through an infrared temperature detecting instrument to input the prediction model, so that the internal temperature change curve predicted by the prediction model in the pouring process is more accurate.
As a further description of the scheme of the invention, if the sensors embedded at each measuring point of the pouring auxiliary system do not acquire data for 1 hour continuously, the pouring auxiliary system gives an early warning to the staff through the early warning module to prompt that the sensors at the measuring point have faults.
As a further description of the scheme of the invention, when an internal temperature change theoretical curve calculated based on actual measurement information is compared with an internal temperature change curve predicted based on design information, the highest temperature in the same time region is extracted for comparison;
within the same time zone: if the highest value of the internal temperature predicted based on the actual measurement information is lower than the theoretical highest value of the internal temperature calculated based on the design information, the temperature of the pouring material is normal;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K of the internal temperature calculated based on the design information and is less than or equal to K1 ℃, the early warning module sends out yellow early warning;
if the highest value of the internal temperature predicted based on the actual measurement information exceeds the theoretical highest value K e (K1, K2) of the internal temperature calculated based on the design information, the early warning module sends out orange early warning;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K of the internal temperature calculated based on the design information and is more than K2 ℃, the early warning module sends out red early warning;
and working personnel design different cooling schemes according to different early warning information, so that the temperature of the pouring material is normal.
Through the above calculation scheme, the internal temperature change theoretical curve calculated based on the actual measurement information is compared with the internal temperature change curve predicted based on the design information, according to the comparison result, the early warning module sends out different early warning information, and the staff makes different countermeasures according to different early warning information, designs different cooling schemes, and can improve the working efficiency of the staff.
As a further description of the solution of the present invention, the temperature monitoring section is also a stress monitoring section, a set of strain gauges is embedded at the same time as a set of temperature sensors is embedded at each temperature measuring point, and the strain gauges are also embedded at the same time for monitoring the concrete stress of the casting block, and the formula of the concrete stress-strain relationship is as follows:
σ=e×ε
in the above formula, σ represents the concrete stress value, e represents the concrete elastic modulus, and ε represents the strain value measured by the strain gauge, and the system obtains the concrete stress through the data processing program and stores the concrete stress in the system database.
As further description of the scheme of the invention, the stress analysis model calculates each stress monitoring section theoretical value based on design information, the stress monitoring section theoretical value is compared with the stress value actually measured by the strain gauge, and a worker takes corresponding measures according to the comparison result.
Through above-mentioned technical scheme, can judge whether the structural stress of pouring the piece is qualified through the stress value contrast that stress monitoring section theoretical value and strainometer actual measurement come out, the staff takes corresponding measure according to the contrast result.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (8)

1. Concrete placement auxiliary system based on BIM, its characterized in that includes: the system comprises a main controller, a monitoring module, a management module and an early warning module;
the main controller: the monitoring module and the control module are connected and used for controlling the operation of the whole system;
the monitoring module: the main controller is connected with the main controller and is used for collecting related data in the concrete pouring process;
the management module: the device is connected with the main controller and used for predicting the temperature of the concrete pouring process based on the actual measurement information and the design information and then comparing the temperature with the design standard;
the early warning module: and the controller is connected with the main controller and is used for early warning the working personnel when the actual temperature and the actual stress are predicted not to be in the interval of the design standard.
2. The BIM-based concrete placement assistance system of claim 1,
the concrete pouring auxiliary system is characterized in that the working method of the concrete pouring auxiliary system comprises the following steps:
s1, constructing a temperature prediction model and a stress analysis model in a concrete pouring process based on BIM, and introducing the models into a management module of a concrete pouring auxiliary system, wherein a user can change input elements to adapt to concrete pouring blocks of different types;
s2, inputting relevant information of concrete pouring block design into a prediction model;
s3, obtaining an internal temperature change theoretical curve of the pouring block in the pouring process through a temperature prediction model;
s4, acquiring temperature data information in the pouring process in real time at intervals through a monitoring module, and writing the temperature data information into a system database after data processing;
s5, extracting currently acquired data information in real time by a management module, inputting the data information into a temperature prediction model, predicting internal temperature change in a subsequent pouring process, generating a corresponding curve and storing the curve in a system database;
s6, comparing an internal temperature change curve predicted based on the actual measurement information with an internal temperature change theoretical curve calculated based on the design information;
and S7, taking corresponding measures by the staff according to the comparison result.
3. The BIM-based concrete placement assistance system of claim 2,
the method for acquiring the temperature information is characterized by comprising the following steps of:
s1, analyzing and predicting a key position with a large influence of temperature change on a pouring block by a temperature prediction model through input design information;
s2, collecting the internal temperature of the pouring block in real time through a pre-buried temperature sensor;
s3, directly processing the acquired internal temperature data by the system through a data processing program, and then packaging and writing the internal temperature data into a system database;
s4, collecting the temperature of the pouring aggregate and the temperature of a discharge hole in real time at one interval by a worker through an infrared temperature detecting instrument;
s5, uploading the collected casting aggregate temperature and the collected discharge port temperature to a server by a worker through mobile equipment;
and S6, the system extracts data in the server, processes the collected casting aggregate temperature and the collected discharge port temperature through a data processing program, packs and writes the processed casting aggregate temperature and the collected discharge port temperature into a system database.
4. The BIM-based concrete placement aid system according to claim 3, wherein the method of pre-burying the sensors is: selecting a position of a temperature prediction model which has great influence on a pouring block by the temperature of a pouring material in the pouring process as a temperature monitoring section based on design information, arranging a group of temperature measuring points on each section, burying a group of temperature sensors in each measuring point, configuring an address for each temperature measuring point, and displaying the temperature value of each temperature measuring point according to different addresses of the temperature measuring points.
5. The BIM-based concrete pouring auxiliary system according to claim 1, wherein the sensors embedded at each measuring point of the pouring auxiliary system do not acquire data for 1 hour continuously, and the pouring auxiliary system gives an early warning to workers through the early warning module to prompt that the sensors at the measuring point have faults.
6. The BIM-based concrete placement assistance system according to claim 2, wherein when an internal temperature change theoretical curve calculated based on the measured information is compared with an internal temperature change curve predicted based on the design information, the highest temperature in the same time zone is extracted for comparison;
within the same time zone: if the maximum value of the internal temperature predicted based on the actual measurement information is lower than the theoretical maximum value of the internal temperature calculated based on the design information, the temperature of the pouring material is normal;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K of the internal temperature calculated based on the design information and is less than or equal to K1 ℃, the early warning module sends out yellow early warning;
if the highest value of the internal temperature predicted based on the actual measurement information exceeds the theoretical highest value K e (K1, K2) of the internal temperature calculated based on the design information, the early warning module sends out orange early warning;
if the maximum value of the internal temperature predicted based on the measured information exceeds the theoretical maximum value K > K2 ℃ of the internal temperature calculated based on the design information, the early warning module sends out red early warning;
and working personnel design different cooling schemes according to different early warning information.
7. The BIM-based concrete placement aid system according to claim 3, wherein the temperature monitoring section is a stress monitoring section, a set of strain gauges are embedded at the same time as a set of temperature sensors are embedded at each temperature measuring point, and the strain gauges are used for monitoring concrete stress of a placement block, and the concrete stress-strain relationship is expressed as follows:
σ=e×ε
in the above formula, σ represents the concrete stress value, e represents the concrete elastic modulus, and ε represents the strain value measured by the strain gauge, and the system obtains the concrete stress through the data processing program and stores the concrete stress in the system database.
8. The BIM-based concrete pouring auxiliary system according to claim 2, wherein the stress analysis model calculates each theoretical stress monitoring section value based on design information, the theoretical stress monitoring section value is compared with the stress value measured by the strain gauge, and a worker takes corresponding measures according to the comparison result.
CN202211328816.8A 2022-10-27 2022-10-27 Concrete pouring auxiliary system based on BIM Pending CN115482650A (en)

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CN106768432A (en) * 2016-11-17 2017-05-31 南通四建集团有限公司 A kind of mass concrete real time temperature monitoring, method for early warning based on BIM
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CN115685950B (en) * 2022-12-31 2023-03-10 常州市聚凝电气自动化设备有限公司 Metering and batching mixed pouring control method and system based on industrial Ethernet

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