Intelligent simulation and monitoring method for mass concrete pouring construction

Abstract

The invention discloses an intelligent simulation and monitoring method for mass concrete pouring construction, which comprises the following steps: based on a software system and hardware equipment of a BIM model, establishing a concrete construction temperature control monitoring model on a Revit platform, combining Revit and a database, realizing monitoring information and model integration in a secondary development form, importing the BIM model into software at the same time, and establishing a concrete construction temperature control monitoring model on the basis of the BIM model. Carrying out analogue simulation of a mass concrete temperature control process and dynamic monitoring of a construction process; bIM is applied to construction temperature control monitoring, the visual management and analysis capability of monitoring information can be improved, a way is provided for feedback between temperature control simulation data and actual engineering monitoring data, and the mass concrete construction process can be better guided.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete pouring construction, and in particular relates to an intelligent simulation and monitoring method for large-volume concrete pouring construction. Background Art

[0002] Mass concrete pouring construction refers to a construction technology that requires pouring a large amount of concrete at one time. It is often used in the foundation of building structures, underground structures or large-scale water conservancy projects. Mass concrete pouring construction needs to be strictly carried out in accordance with design requirements and construction specifications to ensure structural safety and construction quality. During the construction process, it is necessary to monitor the temperature, slump, fluidity and pouring speed of the concrete at all times to detect problems in a timely manner and dynamically adjust the construction plan.

[0003] Large-volume concrete construction projects are large in volume, with complex construction processes and generally lasting for a long period of time. Therefore, engineers need to strictly control each process of construction, from pre-construction plan formulation to status monitoring during construction, which requires careful planning and careful preparation. This also brings huge challenges to engineers. Complex construction processes and huge engineering data are the primary problems. It is difficult to complete large-scale projects relying on traditional construction technology. Not only is the construction efficiency low, but there is also the possibility of omissions and safety hazards during the construction process. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide an intelligent simulation and monitoring method for mass concrete pouring construction. On the Revit platform, a concrete construction temperature control monitoring model is established, and Revit and database are combined to realize the integration of monitoring information and model in the form of secondary development. At the same time, the BIM model is imported into the software to simulate the temperature control process of mass concrete and dynamically monitor the construction process. Applying BIM to construction temperature control monitoring can improve the visual management and analysis capabilities of monitoring information, and provide a way for feedback between temperature control simulation data and actual engineering monitoring data, which can better guide the mass concrete construction process.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: an intelligent simulation and monitoring method for large-volume concrete pouring construction, comprising:

[0006] A software system based on a BIM model, the software system comprising a simulation calculation module and a dynamic monitoring module;

[0007] The hardware equipment includes temperature acquisition equipment and data processing equipment;

[0008] The hardware equipment transmits the collected and processed data to the server, which integrates it into the BIM model and uses the software system to create a temperature change trend chart. Users can view the real-time data and change trend chart of the concrete pouring model on the interactive platform to guide the formulation of the plan during the construction process. The specific steps include the following:

[0009] S1 temperature acquisition equipment collects concrete temperature data;

[0010] The S2 temperature acquisition device transmits data to the data processing device through serial communication. The data processing device processes the temperature data and sends the data to the server through the WIFI module.

[0011] The S3 server integrates the collected data into the BIM model, uses BIM software to build a large-volume concrete 3D model, and then converts the 3D model into a finite element analysis model;

[0012] The S4 simulation calculation module performs simulation calculation and outputs a preliminary temperature control plan. The operator determines whether the plan is feasible. If not, the S3 operation step is performed. If yes, the S5 operation step is performed.

[0013] S5 was constructed according to the preliminary temperature control plan;

[0014] The S6 dynamic monitoring module performs real-time monitoring, uses the results of simulation calculations to predict the temperature variation pattern of concrete, and analyzes the deviation between the actual temperature monitoring data and the simulation calculation results.

[0015] Preferably,

[0016] In SI and S2, concrete temperature data acquisition and temperature data processing mainly include hardware initialization, data processing and calibration, and data upload.

[0017] Among them, in the hardware initialization stage, the temperature sensor connection line is configured to the corresponding GPIO pin, and the hardware initialization configuration is performed. After the hardware configuration is completed, the ADC module of STM32 is initialized to realize the output signal collection of the sensor;

[0018] The processing and calibration of the sampled data requires the conversion of analog signals to digital signals and the calibration of the final data.

[0019] Preferably,

[0020] In the data upload part, the esp8266WIFI module is used to build a serial port-WIFI data transmission solution. STM32 sends relevant AT commands to the module through the serial port to perform corresponding operations. The transmission password, target IP address and data to be sent are set through AT commands.

[0021] The server receives and stores the temperature data.

[0022] Preferably,

[0023] The BIM software is Revit, and the concrete pouring model uses the method of loading families to establish parameters for each component of the concrete structure, and assembles the overall model in the project file;

[0024] Revit software was used for BIM modeling, and the concrete was built in blocks according to the layered pouring plan. During pouring, the temperature of each part of the pouring model was monitored.

[0025] Preferably,

[0026] Monitor the temperature of large-volume concrete during pouring, use the monitoring instrument model and element ID to establish a connection between the monitoring information and the model, and realize the expression of the monitoring information in the BIM model.

[0027] The beneficial effects of the present invention are as follows:

[0028] Compared with the traditional concrete construction simulation platform, firstly, the present invention uses STM32 and esp8266WIFI modules for wireless transmission of temperature data, which reduces the cost of the equipment and makes the equipment more concise and lightweight, facilitating the installation and maintenance of the equipment.

[0029] Secondly, the present invention uses BIM technology to perform 3D modeling of the construction site, which can more intuitively and dynamically display the construction process, realize the integration of multi-party information, facilitate the timely exchange of information between construction participants, quickly discover the conditions that occur during the construction process, and facilitate timely adjustment of the construction plan to improve the quality of the project.

[0030] Finally, the present invention synchronizes the simulation and actual process of construction, uses temperature acquisition equipment and Revit to update construction information in real time, makes the simulation process closer to the actual situation, and then compares the actual construction situation with the construction plan, so that relevant personnel can dynamically adjust the construction plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a flow chart of the overall steps of the present invention;

[0032] Figure 2 It is a flow chart of concrete temperature collection and processing of the present invention;

[0033] Figure 3 is a schematic diagram of a temperature extraction module of the present invention;

[0034] Figure 4 It is the overall model framework diagram of the present invention;

[0035] Figure 5It is a schematic diagram of the software system and hardware device structure of the present invention. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0037] Example:

[0038] Reference Figure 4 As shown, the present invention mainly includes two parts: hardware equipment and software system. The hardware part realizes monitoring of the temperature and casting layer thickness during concrete pouring, and the software part realizes 3D modeling of the concrete pouring model, realizing simulation calculation and dynamic monitoring of the large-volume concrete pouring process.

[0039] Reference Figure 1 As shown in the figure, the hardware equipment collects data on concrete temperature and pouring layer thickness during the construction process, and the data is processed by STM32 and sent to the background server. After receiving the data, the server background integrates it into the pre-built BIM model and establishes a temperature change trend chart based on the simulation model. Users can view the real-time data and change trend chart of the concrete pouring model on the interactive platform to guide the formulation of plans during the construction process.

[0040] Reference Figure 2 As shown, the hardware equipment mainly needs to collect and process the temperature of the concrete pouring process, and complete the collection of temperature and concrete thickness information during the concrete construction process.

[0041] The concrete temperature data acquisition and processing module mainly includes hardware initialization, data processing and calibration, and data uploading.

[0042] In the hardware initialization stage, configure the temperature sensor connection line to the corresponding GPIO pin and perform hardware initialization configuration. After the hardware is configured, initialize the ADC module of STM32 to collect the output signal of the sensor.

[0043] Then comes the processing and calibration of the sampled data. At this stage, it is necessary to realize the conversion of analog signals to digital signals and the calibration of the final data. According to the characteristics of the WZP-PT100 sensor and the relevant data table, the relationship between the temperature value and the analog signal value is obtained. Based on these relationships, the corresponding formula is used to calculate the actual temperature represented by the sensor. In order to improve the accuracy of the measurement, the measured data needs to be calibrated and compensated. Calibration and compensation can eliminate the errors of the sensor itself and the influence of the temperature measurement environment.

[0044] Finally, the temperature data is uploaded. In the data upload part, the esp8266WIFI module is used to build a serial-WIFI data transmission solution. STM32 sends relevant AT commands to the module through the serial port to perform corresponding operations. The transmission password, target IP address and data to be sent are set through AT commands. The corresponding serial port function is written on the server to complete data reception. After receiving the data, the server writes the temperature corresponding to the corresponding temperature sensor into the database for subsequent simulation models and data monitoring platforms.

[0045] It should be noted that, refer to Figure 3 As shown in the figure, in the actual construction process, factors such as external environmental conditions and constraints change as the construction process progresses. Therefore, in the temperature control simulation calculation, the finite element calculation model also changes accordingly as the construction progresses. When performing simulation analysis on large-volume concrete construction, finite element software is used for modeling, but complex components will cause difficulties in model construction and model parameters need to be modified multiple times. Therefore, applying BIM software to the processing of finite element analysis can greatly improve the efficiency of finite element analysis.

[0046] Use BIM software and finite element calculation software to exchange data and realize the conversion between BIM model and finite element model. Through this method, the BIM model is used in temperature control simulation analysis. Before the concrete pouring construction begins, the construction process is simulated according to the existing design data to obtain a set of feasible and standardized construction temperature control plans, which are used as preliminary standards to guide subsequent construction. During the construction process, the simulation results are used to predict the temperature change law of concrete, and the deviation between the actual temperature monitoring data and the simulation results is analyzed, and corresponding guidance is given during the construction process based on this information.

[0047] The present invention realizes the visual management of temperature control monitoring information and the interactive operation of data model based on BIM model. Establishing BIM model of engineering structure and reflecting temperature control monitoring area is the premise of realizing BIM integration of temperature control monitoring information.

[0048] First, the BIM modeling software used in the present invention is Revit. The concrete structure model first uses the method of loading the family to establish parameters for each component of the concrete structure, and then assembles the overall model in the project file. Monitor the temperature of the large volume of concrete during pouring, use the monitoring instrument model and the graphic element ID to establish the connection between the monitoring information and the model, and realize the expression of the monitoring information in the BIM model. Use Revit software for BIM modeling, and establish it in blocks according to the layered pouring plan of concrete. During pouring, monitor the temperature of each part of the pouring model.

[0049] Secondly, the sensor is buried in the intended measurement section before concrete pouring. The measurement point is set through the Dynamo program, the measurement point location is read from the Excel file, the thermometer family is loaded and placed in the specified position of the project. The monitoring instrument itself is small in size. In order to find the temperature measurement point in the model, the size of the thermometer family is enlarged 10 times for easy model display.

[0050] Then, the access channel between Revit and the database is realized through RevitAPI. Various functions are expanded through Revit plug-ins in the form of C# class libraries. The monitoring data in the database is linked to the model in Revit to realize the visual expression of the monitoring data in space. In Revit, each model instance has a unique element ID. Therefore, the element ID can be used as a fixed number to retrieve the model in the project. In addition, the element ID is stored in the database together with the temperature control monitoring information as a link between the temperature control monitoring information and the Revit model instance. On the Revit platform, through RevitAPI development, a management interface for the temperature control monitoring information database is added to realize the entry and query of temperature control monitoring information, as well as the interaction between temperature control monitoring information and Revit models.

[0051] The temperature control monitoring data management interface was developed through Revit API, and Access was used as the background database to store data, realizing the visual management of temperature control monitoring data on the Revit platform.

[0052] The MySQL database used in the present invention is an open source relational database management system. It is one of the most popular relational databases currently. MySQL supports multiple operating systems, including Linux, Windows, and MacOS X, and also provides API interfaces for multiple programming languages. It can handle very large amounts of data, support high concurrent access, can be embedded in applications, and provide powerful security and management functions.

[0053] This study adopts the concrete average temperature calculation formula for the problem of water pipe cooling without heat source, combined with the measured temperature, and calculates T in the concrete average temperature calculation formula for the problem of water pipe cooling without heat source. i Carry out dynamic updates and dynamically predict the cooling process line of the casting bin.

[0054] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for intelligent simulation and monitoring of mass concrete pouring construction, characterized in that: include: A software system based on a BIM model, the software system comprising a simulation calculation module and a dynamic monitoring module; The hardware equipment includes temperature acquisition equipment and data processing equipment; The hardware equipment transmits the collected and processed data to the server, which integrates it into the BIM model and uses the software system to create a temperature change trend chart. Users can view the real-time data and change trend chart of the concrete pouring model on the interactive platform to guide the formulation of the plan during the construction process. The specific steps include the following: S1 temperature acquisition equipment collects concrete temperature data; The S2 temperature acquisition device transmits data to the data processing device through serial communication. The data processing device processes the temperature data and sends the data to the server through the WIFI module. The S3 server integrates the collected data into the BIM model, uses BIM software to build a large-volume concrete 3D model, and then converts the 3D model into a finite element analysis model; The S4 simulation calculation module performs simulation calculation and outputs a preliminary temperature control plan. The operator determines whether the plan is feasible. If not, the S3 operation step is performed. If yes, the S5 operation step is performed. S5 was constructed according to the preliminary temperature control plan; The S6 dynamic monitoring module performs real-time monitoring, uses the results of simulation calculations to predict the temperature variation pattern of concrete, and analyzes the deviation between the actual temperature monitoring data and the simulation calculation results.

2. The intelligent simulation and monitoring method for mass concrete pouring construction according to claim 1 is characterized in that: In SI and S2, concrete temperature data collection and temperature data processing mainly include hardware initialization, data processing and calibration, and data uploading; Among them, in the hardware initialization stage, the temperature sensor connection line is configured to the corresponding GPIO pin, and the hardware initialization configuration is performed. After the hardware configuration is completed, the ADC module of STM32 is initialized to realize the output signal collection of the sensor; The processing and calibration of the sampled data requires the conversion of analog signals to digital signals and the calibration of the final data.

3. The intelligent simulation and monitoring method for mass concrete pouring construction according to claim 2 is characterized in that: In the data upload part, the esp8266WIFI module is used to build a serial port-WIFI data transmission solution. STM32 sends relevant AT commands to the module through the serial port to perform corresponding operations. The transmission password, target IP address and data to be sent are set through AT commands. The server receives and stores the temperature data.

4. The intelligent simulation and monitoring method for mass concrete pouring construction according to claim 3 is characterized in that: The BIM software is Revit, and the concrete pouring model uses the method of loading families to establish parameters for each component of the concrete structure, and assembles the overall model in the project file; Revit software was used for BIM modeling, and the concrete was built in blocks according to the layered pouring plan. During pouring, the temperature of each part of the pouring model was monitored.

5. The intelligent simulation and monitoring method for mass concrete pouring construction according to claim 4 is characterized in that: Monitor the temperature of large-volume concrete during pouring, use the monitoring instrument model and graphic element ID to establish a connection between the monitoring information and the model, and realize the expression of the monitoring information in the BIM model.

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