CN114861279A - Method and system for testing temperature simulation consistency of hydraulic concrete structure - Google Patents
Method and system for testing temperature simulation consistency of hydraulic concrete structure Download PDFInfo
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Abstract
The invention provides a method and a system for testing temperature simulation consistency of a hydraulic concrete structure, which comprises the following steps: the method comprises the following steps: acquiring a concrete actual temperature measuring point; step two: obtaining the actual measurement temperature of the concrete; step three: acquiring a simulation calculation temperature measuring point; step four: acquiring the temperature of a simulation calculation measuring point; step five: verifying the consistency of the temperature of the measuring points; step six: testing the temperature consistency of the measuring points; step seven: checking the consistency of the zone temperature; step eight: checking the integral temperature consistency; step nine: when the temperature measuring points, the area temperature and the overall temperature all meet the consistency requirement, the temperature simulation result is consistent with the measured temperature. The invention provides a method and a system for testing temperature simulation consistency of a hydraulic concrete structure, and belongs to the technical field of water conservancy and hydropower.
Description
Technical Field
The invention provides a method and a system for testing temperature simulation consistency of a hydraulic concrete structure, and belongs to the technical field of water conservancy and hydropower.
Background
The hydraulic concrete structure is widely applied to hydraulic and hydroelectric engineering, such as arch dams, gravity dams, aqueducts, water gates, rock-fill dam panels and the like, generally has the characteristics of large volume, high anti-cracking safety performance requirement and long operation period, and particularly the operation period of the concrete dam generally requires more than 100 years. In order to ensure the safe construction and operation of the engineering, the construction method needs to control various aspects such as structural design, material performance, construction quality, operation management and the like, reduce the cracking of concrete as much as possible and prolong the service life. Typically, the structural design and the material performance are improved, for example, the structural form is optimized, reasonable parting and blocking are selected, the concrete mixing proportion is optimized, and additives for improving the concrete performance are added; secondly, the construction quality is controlled, construction and maintenance management are enhanced, the concrete pouring and vibrating quality is ensured, the uniform strength of a concrete pouring block is ensured, and the quality defect and the concrete cracking are reduced; thirdly, mastering the stress and stress state of a real concrete structure, taking measures in time to avoid concrete cracking, and typically simulating an analysis method, wherein the whole process simulates the construction and operation process of the concrete structure to obtain the stress distribution and change rule of the concrete. Based on the measures, large-scale construction of various buildings such as dams, water gates, aqueducts and the like is greatly improved, but with continuous improvement of the social requirements on the safety of engineering structures, the existing management and control means have obvious defects, fourteen-five national plans clearly provide intelligent water conservancy construction and improve management and control capacity, wherein digital twin water conservancy projects are important parts. The concrete structure safety analysis in the digital twin hydraulic engineering mainly adopts a numerical simulation analysis technology, such as finite element simulation analysis in representativeness, and is widely applied to various projects, but different results can be inevitably obtained when different simulation methods, software or calculation and analysis personnel calculate in the same project type or even the same project, and whether simulation analysis results are consistent with real monitoring of the project, whether simulation results of different simulation software on the same scheme are consistent, whether simulation results of the same simulation software are consistent for multiple times, and the like need to be confirmed.
At present, the research results of temperature simulation of hydraulic concrete structures at home and abroad are very rich, such as documents of 'large-volume concrete temperature stress and temperature control', 'rolling concrete dam temperature stress simulation calculation research' and the like, but the research of temperature simulation consistency test is lacked, and the consistency test is mainly qualitative comparison, namely, a calculated temperature curve and an actually measured temperature curve are drawn on a graph, and whether the calculated temperature curve and the actually measured temperature curve are consistent or not is judged qualitatively, so that the large subjectivity and the randomness exist. The large-scale hydraulic engineering has numerous measuring points and complex boundary conditions, causes numerous factors which cause inconsistent simulation results, is difficult to ensure the requirement of high fidelity of the digital twin hydraulic engineering only by qualitative analysis, and has low efficiency by curve comparison.
Disclosure of Invention
The invention provides a method and a system for testing the temperature simulation consistency of a hydraulic concrete structure, which are used for solving the problem of lack of test standards of the consistency of simulation temperature and monitored temperature, ensuring the simulation precision and improving the test efficiency.
The invention provides a method for testing the temperature simulation consistency of a hydraulic concrete structure, which comprises the following steps:
the method comprises the following steps: and acquiring a concrete actual temperature measuring point. In order to carry out the consistency check of the temperature simulation result, the position of a temperature measuring point of the concrete structure is firstly acquired, and coordinates are defined according to a certain rule.
Acquiring an existing temperature measuring point in an established concrete structure, and supplementing the temperature measuring point when the temperature measuring point is insufficient;
in a to-be-built or under-built stage, temperature measuring points can be deployed according to a certain rule, and the temperature distribution and change rule of the concrete are accurately monitored. The measuring points are arranged from the surface of the structure to the inner center position, the temperature gradient change condition of the structure is accurately reflected, and the measuring points are arranged at the boundary positions of different types of temperature respectively.
Step two: and obtaining the actual measurement temperature of the concrete. And acquiring measured temperature data of the measuring point through data acquisition and transmission, storing the measured temperature data into a storage device, and marking the measured temperature data as a first data set.
The measured temperature acquisition should meet the requirements of precision and frequency, and different stages, different buildings and different parts can be different. Typically, optionally, the temperature is collected at a frequency of up to one hourly collection, e.g., with a temperature monitoring error of no greater than 0.5 ℃.
The temperature monitoring should enable encrypted acquisition.
Step three: and (6) acquiring simulation calculation temperature measuring points. In the simulation grid model, a coordinate origin and coordinate axis definition mode which is unified with an actual engineering structure is adopted, and a calculated temperature measuring point which is consistent with the coordinate position of the actual temperature measuring point is obtained based on the position coordinate of the actual temperature measuring point and is marked as a second data set.
When no node consistent with the coordinate position of the actual temperature measuring point exists in the grid model, the measuring point can be defined in a peripheral measuring point interpolation mode.
When the grid model is built, nodes are arranged at the positions of the actual measuring points of the engineering structure, so that a node is arranged at the corresponding position of each actual measuring point.
Step four: and (5) acquiring the temperature of the measuring point through simulation calculation. And obtaining the temperature of the measuring point from the simulation calculation result based on the obtained temperature measuring point.
The temperature of the measuring point is calculated to be the same as the measured temperature at the moment. When the time is different, the time can be determined by calculating the temperature or interpolating the measured temperature.
During simulation calculation, the calculation step is set at the actual measurement temperature acquisition time. When the acquisition frequency density is large and the temperature change is stable, calculation steps can be set at intervals.
Step five: and (5) verifying the consistency of the temperature of the measuring points. Based on the actual engineering situation, an evaluation index and a standard for the consistency of the calculated temperature and the actually measured temperature are provided.
Optionally, the evaluation index adopts an absolute value of a difference between the calculated temperature and the actually measured temperature at a certain moment, or an average value of absolute values of the difference between the calculated temperature and the actually measured temperature at a series of moments;
optionally, the evaluation criterion is a certain temperature value in the range of 0-2 ℃.
Step six: and (5) testing the temperature consistency of the measuring points. And C, processing the temperature data corresponding to the first data set and the second data set by adopting the evaluation indexes and the evaluation standards in the step five, acquiring a processing result corresponding to the evaluation indexes, judging whether the processing result is in the range of the evaluation standards, and determining consistency according to the judgment result. When all the evaluation index consistency check results are within the evaluation standard range, the calculated temperature is determined to be consistent with the measured temperature.
Step seven: and (5) checking the temperature consistency of the areas. When the structure is complex and the size is large, the partition is carried out according to the structure characteristics, material partition, boundary conditions or pouring conditions, consistency evaluation indexes and standards are provided based on the actual engineering conditions, and the consistency of the concrete space temperature gradient in the partition is checked.
Optionally, the evaluation index can adopt the temperature difference value of different measuring points at the same time, and the evaluation standard is a certain temperature value between 0 and 2 ℃.
When the temperature gradient calculation measuring point is selected, an area with large temperature gradient change in the area is selected;
in a to-be-built or under-construction stage, a spatial temperature gradient monitoring instrument is arranged in a structure;
optionally, in the concrete structure, at least 5 measuring points are continuously arranged from the surface to the inside along a straight line, and the distance between the measuring points is gradually increased from the surface to the inside so as to effectively reflect the temperature gradient change condition.
Step eight: and (5) checking the overall temperature consistency. In the area of the whole structure without temperature measuring points, selecting the inspection points with basically the same temperature boundary and material characteristics as the area with the temperature measuring points, and determining the actual temperature value by adopting an analog or theoretical analysis method. And D, adopting the evaluation indexes and the evaluation standards in the step five to check the consistency of the simulation temperature and the actual temperature of the check point.
Step nine: when the temperature measuring points, the area temperature and the overall temperature all meet the consistency requirement, the temperature simulation result is consistent with the measured temperature.
The second aspect of the invention provides a system for verifying the temperature simulation consistency of a hydraulic concrete structure, which comprises:
the system comprises an actual measuring point acquisition module, a temperature measuring point acquisition module and a temperature measuring point acquisition module, wherein the actual measuring point acquisition module is used for acquiring the coordinate position of an actually set temperature measuring point in the concrete structure, and the coordinate position of the actual measuring point is a unified coordinate origin and coordinate system;
the actual temperature acquisition module is used for acquiring an actual measuring point monitoring temperature value in the concrete structure and storing the actual measuring point monitoring temperature value in the storage equipment in a specified format;
the simulation measuring point obtaining module is used for obtaining a node number which is consistent with the coordinate position of an actual measuring point in a grid model, and the grid model and an actual structure adopt a unified coordinate origin and a coordinate system;
the simulation temperature acquisition module is used for acquiring a simulation calculation temperature value of the concrete structure and storing the simulation calculation temperature value in the storage equipment in a specified format;
the measuring point temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the measuring point temperature, performing consistency verification on the selected measuring point temperature, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the simulation temperature;
the area temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the area temperature, performing consistency verification on the selected area temperature gradient, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the area temperature;
the overall temperature consistency checking module is used for acquiring indexes and evaluation standards of overall temperature consistency evaluation, performing consistency verification on the selected check point temperature, and when all the evaluation indexes meet the evaluation standards, the structural overall temperature meets the consistency verification;
and the result judgment model is used for acquiring a total consistency test result, and when the consistency of the temperature of the measuring point, the consistency of the temperature of the area and the consistency of the temperature of the whole meet the requirement, the simulation temperature meets the consistency requirement.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic view of an example concrete gravity dam temperature monitoring arrangement;
FIG. 3 is a schematic representation of measured temperature for an embodiment;
FIG. 4 shows an embodiment simulation grid and temperature measurement points;
FIG. 5 is a schematic diagram of the inspection system of the present invention.
Detailed Description
So that those skilled in the art can understand the features and technical contents of the present invention, refer to the detailed description of the present invention and the accompanying drawings, it should be understood that the embodiments described herein are only for illustrating and explaining the present invention and are not to be construed as limiting the present invention.
Fig. 1 is a flow chart of an embodiment of a method, which may be used for temperature simulation consistency verification of a hydraulic concrete structure, as shown in fig. 1, and includes the following steps:
the method comprises the following steps: and acquiring a concrete actual temperature measuring point. In order to carry out the consistency check of the temperature simulation result, the position of a temperature measuring point of the concrete structure is firstly acquired, and coordinates are defined according to a certain rule. FIG. 2 is a schematic diagram of a concrete gravity dam temperature monitoring arrangement, wherein the temperature measuring points comprise an upstream surface above-water temperature measuring point, an upstream surface below-water temperature measuring point, a downstream surface above-water temperature measuring point, a downstream surface below-water temperature measuring point, a bedrock temperature measuring point, an internal temperature measuring point and a temperature gradient measuring point. Taking the bottom point of the upstream surface of the dam as a coordinate origin, taking the height direction as a Z axis and taking the upward direction as a positive direction; the upstream direction is the Y axis, and the upstream direction is positive; the direction of the dam axis is taken as the X axis, and the X axis positive direction is defined by the coordinate system according with the right-hand system method. Illustrated on fig. 2: delta 1 、δ 2 The distance between the measuring point and the upstream surface; delta 3 、δ 4 、δ 5 、δ 6 、δ 7 、δ 8 、δ 9 Is the measurement point spacing.
Step two: and obtaining the actual measurement temperature of the concrete. Measured temperature data of the measuring point is acquired through data acquisition and transmission, a measured temperature schematic diagram is shown in fig. 3, and the acquired temperature is stored in a storage device and marked as a first data set.
The measured temperature acquisition should meet the requirements of precision and frequency, and different stages, different buildings and different parts can be different. Typically, optionally, the temperature is collected at a frequency of up to one hourly collection, e.g., with a temperature monitoring error of no greater than 0.5 ℃.
The temperature monitoring should enable encrypted acquisition.
Step three: and (6) acquiring simulation calculation temperature measuring points. In the simulation grid model, a coordinate origin and coordinate axis definition mode which is unified with an actual engineering structure is adopted, and a calculated temperature measuring point which is consistent with the coordinate position of the actual temperature measuring point is obtained based on the position coordinate of the actual temperature measuring point, wherein a simulation grid and the temperature measuring point are marked as a second data set in FIG. 4.
When no node consistent with the coordinate position of the actual temperature measuring point exists in the grid model, the measuring point can be defined in a peripheral measuring point interpolation mode.
When the grid model is built, nodes are arranged at the positions of the actual measuring points of the engineering structure, so that a node is arranged at the corresponding position of each actual measuring point.
Step four: and (5) acquiring the temperature of the measuring point through simulation calculation. Based on the calculated temperature measurement points obtained above, the measurement point temperatures are obtained from the simulation calculation results, see fig. 3.
The temperature of the measuring point is calculated to be the same as the measured temperature at the moment. When the time is different, the time can be determined by calculating the temperature or interpolating the measured temperature.
During simulation calculation, the calculation step is set at the actual measurement temperature acquisition time. When the acquisition frequency density is large and the temperature change is stable, calculation steps can be set at intervals.
Step five: and (5) verifying the consistency of the temperature of the measuring points. Based on the actual engineering situation, an evaluation index and a standard for the consistency of the calculated temperature and the actually measured temperature are provided.
Optionally, the evaluation index adopts a certain time to calculate the temperature t ci With measured temperature t mi Absolute value of difference beta i Or calculating the average value beta 0 of the absolute values of the difference values of the temperature and the actually measured temperature at a series of moments;
optionally, the evaluation standard is a certain temperature value in the range of 0-2 ℃, and is determined according to factors such as the type of the hydraulic concrete structure, the engineering grade and the like.
Step six: and (5) testing the temperature consistency of the measuring points. Adopting the evaluation index and the evaluation standard in the fifth step, processing the corresponding temperature data in the first data set and the second data set to obtain a processing result corresponding to the evaluation index, judging whether the processing result is in the evaluation standard range, determining consistency according to the judgment result, and comparing beta i And the tolerance error beta 0, if beta i <Beta 0, the consistency of the simulation temperature meets the requirement; if beta is i >Beta 0, the simulation temperature consistency does not meet the requirement.
When all the evaluation index consistency check results are within the evaluation standard range, the calculated temperature is determined to be consistent with the measured temperature.
Step seven: and (5) checking the temperature consistency of the areas. When the structure is complex and the size is large, the partition is carried out according to the structure characteristics, material partition, boundary conditions or pouring conditions, consistency evaluation indexes and standards are provided based on the actual engineering conditions, and the consistency of the concrete space temperature gradient in the partition is checked.
Optionally, the evaluation index can adopt the temperature difference value at different measuring points at the same time, namely beta U =t mi -t mj The evaluation standard beta A is a certain temperature value between 0 and 2 ℃.
When the temperature gradient calculation measuring point is selected, an area with large temperature gradient change in the area is selected;
in the stage to be built or under construction, a spatial temperature gradient monitoring instrument is arranged in the structure, as shown in fig. 2;
optionally, in the concrete structure, at least 5 measuring points are continuously arranged from the surface to the inside along a straight line, and the distance between the measuring points is gradually increased from the surface to the inside so as to effectively reflect the temperature gradient change condition.
Step eight: and (5) checking the overall temperature consistency. In the area of the whole structure without temperature measuring points, selecting the inspection points with basically the same temperature boundary and material characteristics as the area with the temperature measuring points, and determining the actual temperature value by adopting an analog or theoretical analysis method. And D, adopting the evaluation indexes and the evaluation standards in the step five to check the consistency of the simulation temperature and the actual temperature of the check point.
Step nine: when the temperature measuring points, the area temperature and the overall temperature all meet the consistency requirement, the temperature simulation result is consistent with the measured temperature.
The second aspect of the present invention provides a system for testing temperature simulation consistency of a hydraulic concrete structure, which comprises 8 modules, as shown in fig. 5, wherein the modules respectively comprise:
the system comprises an actual measuring point acquisition module, a temperature measuring point acquisition module and a temperature measuring point acquisition module, wherein the actual measuring point acquisition module is used for acquiring the coordinate position of an actually set temperature measuring point in the concrete structure, and the coordinate position of the actual measuring point is a unified coordinate origin and coordinate system;
the actual temperature acquisition module is used for acquiring an actual measuring point monitoring temperature value in the concrete structure and storing the actual measuring point monitoring temperature value in the storage equipment in a specified format;
the simulation measuring point obtaining module is used for obtaining a node number which is consistent with the coordinate position of an actual measuring point in a grid model, and the grid model and an actual structure adopt a unified coordinate origin and a coordinate system;
the simulation temperature acquisition module is used for acquiring a simulation calculation temperature value of the concrete structure and storing the simulation calculation temperature value in the storage equipment in a specified format;
the measuring point temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the measuring point temperature, performing consistency verification on the selected measuring point temperature, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the simulation temperature;
the area temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the area temperature, performing consistency verification on the selected area temperature gradient, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the area temperature;
and the overall temperature consistency checking module is used for acquiring indexes and evaluation standards for overall temperature consistency evaluation, performing consistency verification on the selected check point temperature, and when all the evaluation indexes meet the evaluation standards, the structural overall temperature meets the consistency verification.
And the result judgment module is used for acquiring a total consistency test result, and when the consistency of the temperature of the measuring point, the consistency of the temperature of the area and the consistency of the temperature of the whole meet the requirement, the simulation temperature meets the consistency requirement.
Claims (4)
1. The method for testing the temperature simulation consistency of the hydraulic concrete structure is characterized by comprising the following steps of:
the method comprises the following steps: acquiring a concrete actual temperature measuring point;
in order to carry out temperature simulation result consistency check, firstly, the position of a temperature measuring point of a concrete structure needs to be obtained, and coordinates are defined according to a certain rule;
acquiring an existing temperature measuring point in an established concrete structure, and supplementing the temperature measuring point when the temperature measuring point is insufficient;
in a to-be-built or under-built stage, temperature measuring points are deployed according to a certain rule, and the temperature distribution and change rule of concrete are accurately monitored; measuring points are arranged from the surface of the structure to the inner center position, the temperature gradient change condition of the structure is accurately reflected, and measuring points are arranged at different temperature boundary positions;
step two: obtaining the actual measurement temperature of the concrete;
acquiring measured temperature data of a measuring point through data acquisition and transmission, storing the measured temperature data into storage equipment, and marking the data as a first data set;
step three: acquiring a simulation calculation temperature measuring point;
in the simulation grid model, a coordinate origin and coordinate axis definition mode which is unified with an actual engineering structure is adopted, and a calculated temperature measuring point which is consistent with the coordinate position of an actual temperature measuring point is obtained based on the position coordinate of the actual temperature measuring point and is marked as a second data set;
when no node consistent with the coordinate position of the actual temperature measuring point exists in the grid model, a measuring point is defined in a peripheral measuring point interpolation mode;
when the grid model is built, nodes are arranged at the positions of the actual measuring points of the engineering structure, so that a node is arranged at the corresponding position of each actual measuring point;
step four: acquiring the temperature of a simulation calculation measuring point;
obtaining the temperature of the measuring point from a simulation calculation result based on the obtained temperature measuring point;
calculating that the temperature of the measuring point is the same as the actually measured temperature at the moment; when the time is different, the temperature is determined by calculating the temperature or an interpolation mode of the measured temperature;
during simulation calculation, setting a calculation step at the actual measurement temperature acquisition moment;
step five: verifying the consistency of the temperature of the measuring points;
based on the actual engineering situation, providing an evaluation index and a standard for the consistency of the calculated temperature and the actually measured temperature;
the evaluation index adopts the absolute value of the difference between the calculated temperature and the actually measured temperature at a certain moment or the average value of the absolute values of the difference between the calculated temperature and the actually measured temperature at a series of moments;
step six: testing the temperature consistency of the measuring points;
processing the temperature data corresponding to the first data set and the second data set by adopting the evaluation index and the evaluation standard in the fifth step to obtain a processing result corresponding to the evaluation index, judging whether the processing result is in the range of the evaluation standard, and determining consistency according to the judgment result; when all the evaluation index consistency check results are within the evaluation standard range, determining that the calculated temperature is consistent with the measured temperature;
step seven: checking the consistency of the zone temperature;
when the structure is complex and the size is large, partitioning is carried out according to the structure characteristics, material partitioning, boundary conditions or pouring conditions, consistency evaluation indexes and standards are provided based on the actual engineering conditions, and the consistency of the concrete space temperature gradient in the partition is checked;
when the temperature gradient calculation measuring point is selected, an area with large temperature gradient change in the area is selected;
in a to-be-built or under-built stage, a spatial temperature gradient monitoring instrument is arranged in a structure;
step eight: checking the integral temperature consistency;
selecting a check point with basically the same temperature boundary and material characteristics as the area where the temperature measuring point is arranged in the whole structure, and determining an actual temperature value by adopting an analog or theoretical analysis method; adopting the evaluation indexes and the evaluation standards in the fifth step to check the consistency of the simulation temperature and the actual temperature of the check point;
step nine: when the temperature measuring points, the area temperature and the overall temperature all meet the consistency requirement, the temperature simulation result is consistent with the measured temperature.
2. The method for testing the temperature simulation consistency of the hydraulic concrete structure according to claim 1, wherein the step five is as follows: the evaluation standard is a certain temperature value in the range of 0-2 ℃.
3. The method for verifying the temperature simulation consistency of the hydraulic concrete structure according to claim 1, characterized by comprising the seventh step of: the evaluation index adopts the temperature difference value of different measuring points at the same moment, and the evaluation standard is a certain temperature value between 0 and 2 ℃;
in the concrete structure, at least 5 measuring points are continuously arranged from the surface to the inside along a straight line, and the distance between the measuring points is gradually increased from the surface to the inside so as to effectively reflect the temperature gradient change condition.
4. The system for checking the temperature simulation consistency of the hydraulic concrete structure is characterized by comprising the following components:
the system comprises an actual measuring point acquisition module, a temperature measuring point acquisition module and a temperature measuring point acquisition module, wherein the actual measuring point acquisition module is used for acquiring the coordinate position of an actually set temperature measuring point in the concrete structure, and the coordinate position of the actual measuring point is a unified coordinate origin and coordinate system;
the actual temperature acquisition module is used for acquiring an actual measuring point monitoring temperature value in the concrete structure and storing the actual measuring point monitoring temperature value in the storage equipment in a specified format;
the simulation measuring point obtaining module is used for obtaining a node number which is consistent with the coordinate position of an actual measuring point in a grid model, and the grid model and an actual structure adopt a unified coordinate origin and a coordinate system;
the simulation temperature acquisition module is used for acquiring a simulation calculation temperature value of the concrete structure and storing the simulation calculation temperature value in the storage equipment in a specified format;
the measuring point temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the measuring point temperature, performing consistency verification on the selected measuring point temperature, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the simulation temperature;
the area temperature consistency checking module is used for acquiring indexes and evaluation standards for evaluating the consistency of the area temperature, performing consistency verification on the selected area temperature gradient, and when all the evaluation indexes meet the evaluation standards, verifying the consistency of the area temperature;
the overall temperature consistency checking module is used for acquiring indexes and evaluation standards for overall temperature consistency evaluation, performing consistency verification on the selected check point temperature, and when all the evaluation indexes meet the evaluation standards, the structural overall temperature meets the consistency verification;
and the result judgment model is used for acquiring a total consistency test result, and when the consistency of the temperature of the measuring point, the consistency of the temperature of the area and the consistency of the temperature of the whole meet the requirement, the simulation temperature meets the consistency requirement.
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CN115482650A (en) * | 2022-10-27 | 2022-12-16 | 安徽龙振建设有限公司 | Concrete pouring auxiliary system based on BIM |
CN116182931A (en) * | 2023-04-26 | 2023-05-30 | 苏州英瑞传感技术有限公司 | Consistency evaluation method, controller and monitoring system of experimental production verification equipment |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130131999A1 (en) * | 2011-11-23 | 2013-05-23 | King Saud University | Method for predicting chloride-induced corrosion |
CN107679300A (en) * | 2017-09-20 | 2018-02-09 | 北京安怀信科技股份有限公司 | One kind emulation, result of the test consistency analysis system and method |
CN109408971A (en) * | 2018-10-29 | 2019-03-01 | 天津大学 | A kind of early concrete condition Changeement method under novel effect of multiple parameters |
WO2021258639A1 (en) * | 2020-06-23 | 2021-12-30 | 南京诺源医疗器械有限公司 | Therapeutic effect evaluation method in microwave ablation based on simulated temperature field |
-
2022
- 2022-05-24 CN CN202210569957.2A patent/CN114861279B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130131999A1 (en) * | 2011-11-23 | 2013-05-23 | King Saud University | Method for predicting chloride-induced corrosion |
CN107679300A (en) * | 2017-09-20 | 2018-02-09 | 北京安怀信科技股份有限公司 | One kind emulation, result of the test consistency analysis system and method |
CN109408971A (en) * | 2018-10-29 | 2019-03-01 | 天津大学 | A kind of early concrete condition Changeement method under novel effect of multiple parameters |
WO2021258639A1 (en) * | 2020-06-23 | 2021-12-30 | 南京诺源医疗器械有限公司 | Therapeutic effect evaluation method in microwave ablation based on simulated temperature field |
Non-Patent Citations (2)
Title |
---|
魏建国;张忠;张心斌;: "核电站筏基大体积混凝土温控监测及仿真分析", 工业建筑, no. 1, 20 June 2008 (2008-06-20), pages 1042 - 1044 * |
黄修山;杨桥培;白绍鹏;: "草街冲砂闸闸墩C25混凝土施工温度观测反分析", 三峡大学学报(自然科学版), no. 06, 15 December 2009 (2009-12-15), pages 33 - 36 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115482650A (en) * | 2022-10-27 | 2022-12-16 | 安徽龙振建设有限公司 | Concrete pouring auxiliary system based on BIM |
CN116182931A (en) * | 2023-04-26 | 2023-05-30 | 苏州英瑞传感技术有限公司 | Consistency evaluation method, controller and monitoring system of experimental production verification equipment |
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