A method for the coordinated construction of a pre-embedded part and mass concrete

CN122965205APending Publication Date: 2026-10-23SEPCO ELECTRIC POWER CONSTR CORP
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Patent Information

Application Number
CN202611096847.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-23
Publication Date
2026-10-23

AI Technical Summary

Technical Problem

[0004]然而上述专利未针对热膨胀设置补偿措施,导致其在高温地区的实际应用精度无法保证

Benefits of technology

1.本申请通过温度补偿值的预设,减少了高温环境下钢材热膨胀对预埋件定位偏差的影响,使预埋件在高温工作状态下更符合理论设计坐标。

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Abstract

The application provides a pre-embedded part and mass concrete cooperative construction method, relates to the technical field of simulation and construction, and the method comprises the following steps: constructing a BIM model containing a pre-embedded part and a steel structure positioning frame, the BIM model is provided with a temperature compensation value of the pre-embedded part and the steel structure positioning frame; importing the BIM model into finite element analysis software, performing finite element analysis on the BIM model based on preset boundary conditions, and obtaining a position parameter; installing the steel structure positioning frame according to the position parameter, and installing the pre-embedded part based on the steel structure positioning frame. The application can reduce the positioning deviation caused by thermal expansion.
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Description

Technical Field

[0001] This application relates to the technical fields of simulation and construction, and in particular to a method for the collaborative construction of embedded parts and large-volume concrete. Background Technology

[0002] The coordinated construction of embedded parts and large-volume concrete is a key technical aspect of heavy equipment foundation engineering. Embedded parts (such as anchor bolts, embedded steel plates, and anchor bolts) provide precise positioning benchmarks for the installation of subsequent equipment (such as extra-large dual-pressure gas booster stations, natural gas compressors, steam turbines, and gas generators), while the large-volume concrete bears the equipment load and transfers it to the foundation. The construction quality of both is mutually influential: the installation accuracy of embedded parts directly determines whether the equipment can be successfully positioned, while the control of temperature cracks in the large-volume concrete affects the long-term anchoring reliability of the embedded parts. In high-temperature environments (such as summer temperatures above 50°C in Saudi Arabia), the thermal expansion effect of steel is significant, the temperature rise of concrete hydration heat is aggravated, and measurement operations are severely interfered with by hot air currents. The contradiction between the installation accuracy of embedded parts and the control of cracks in the large-volume concrete becomes more prominent, placing higher demands on the coordinated construction of both.

[0003] Chinese invention patent CN118358039A, published on July 19, 2024, discloses a BIM-based visual positioning and installation method and device for pre-embedded sleeves. By establishing a BIM model, installing sensors on the sleeve and performing three-dimensional scanning, and importing the three-dimensional model of the sleeve into the BIM model for real-time tracking, the visual positioning and installation of pre-embedded sleeves is realized.

[0004] However, the aforementioned patents do not include compensation measures for thermal expansion, which means that their accuracy in actual applications in high-temperature regions cannot be guaranteed. Summary of the Invention

[0005] To reduce positioning deviations caused by thermal expansion, this application provides a method for the coordinated construction of embedded parts and large-volume concrete.

[0006] Firstly, this application provides a method for the coordinated construction of embedded parts and large-volume concrete, employing the following technical solution: A method for the coordinated construction of embedded parts and large-volume concrete includes the following steps: Construct a BIM model that includes embedded parts and a steel structure positioning frame. The BIM model is pre-set with temperature compensation values ​​for the embedded parts and the steel structure positioning frame. Import the BIM model into the finite element analysis software, perform finite element analysis on the BIM model based on preset boundary conditions, and obtain the location parameters. Install the steel structure positioning frame according to the location parameters, and then install the embedded parts based on the steel structure positioning frame.

[0007] This application reduces the impact of steel thermal expansion on the positioning deviation of embedded parts by presetting temperature compensation values, making the embedded parts more consistent with the theoretical design coordinates under high-temperature working conditions; this application determines the position parameters through finite element analysis, so that the installation position of the embedded parts matches the temperature field and stress field of the concrete; this application uses a steel structure positioning frame as the installation reference for the embedded parts, reducing spatial conflicts between the embedded parts and concrete and reinforcing bars, and realizing the coordinated construction of embedded parts and large-volume concrete.

[0008] Optionally, during the installation of the embedded parts, the method further includes: Before the steel structure positioning frame is hoisted into place, the control points of the design coordinates of the embedded parts in the target parameters are measured for the first time using a total station and a laser tracker to obtain measurement data. The measurement data is then corrected for temperature according to the coefficient of linear expansion of steel to obtain corrected measurement data. During the installation of embedded parts according to the corrected measurement data, a laser tracker is used to provide real-time feedback on the three-dimensional coordinates of the embedded parts, which are compared with the design coordinates in the position parameters to obtain the comparison results. Concrete is poured when the comparison results meet expectations. After the concrete is poured, the center coordinates, elevation, and verticality of each embedded part are measured again to obtain the final measurement data. An alarm signal is issued when the final measurement data does not meet expectations.

[0009] This application adopts a three-level measurement and verification technical solution to achieve closed-loop quality control of the entire process of embedded part installation. Temperature correction reduces the impact of steel thermal expansion on measurement data and improves the authenticity of measurement results. Real-time comparison and alarm mechanisms can promptly detect and correct installation deviations, minimize the risk of deviations being carried into the concrete pouring process, and reduce the risk of rework in the later stage.

[0010] Optionally, the BIM model also includes reinforcing bars and cooling water pipes; after the BIM model is constructed, collision detection is performed between the components, and the component layout is adjusted according to the collision detection results.

[0011] This application uses collision detection to minimize spatial interference between embedded parts, positioning frames, reinforcing bars, and cooling water pipes, reducing the risk of rework due to component conflicts. Collision detection also enables cooling water pipes to be laid with the positioning frames as attachment supports, providing a basis for the physical coordination between embedded parts and the temperature control system.

[0012] Optionally, the preset boundary conditions include the daily variation curve of ambient temperature, the concrete pouring temperature, the raw material temperature, and the additional temperature rise of the concrete surface due to solar radiation.

[0013] This embodiment incorporates the special environmental parameters of high-temperature regions into the boundary conditions of finite element analysis, making the simulation results closer to the actual working conditions of extreme high-temperature environments, and improving the calculation accuracy of cooling water pipe layout parameters and embedded part location parameters.

[0014] Optionally, the finite element analysis further includes: simulating the spatiotemporal distribution of temperature and stress fields during the layered casting process, determining the layout parameters of the cooling water pipes through simulation analysis, and laying the cooling water pipes according to the layout parameters.

[0015] This application optimizes parameters such as the spacing, number of layers, and water temperature of cooling water pipes before construction by simulating the coupled temperature field and stress field. This effectively controls the internal temperature rise of large-volume concrete, and ensures that the internal and external temperature difference and cooling rate meet stricter control targets, thereby reducing the risk of temperature cracks in high-temperature environments.

[0016] Optionally, the method further includes: updating the temperature compensation value and design coordinates in real time according to the construction progress, specifically: determining the temperature compensation value in advance based on the weather forecast before construction, dynamically correcting the temperature compensation value according to the real-time ambient temperature during construction to obtain the corrected temperature compensation value, and updating the design coordinates based on the corrected temperature compensation value and the original temperature compensation value.

[0017] By adopting the above technical solution, this application effectively overcomes the shortcomings of traditional methods where the temperature compensation value remains static and cannot adapt to fluctuations in ambient temperature. Through a dynamic update mechanism, even if the ambient temperature changes significantly during construction, the installation coordinates of the embedded parts can be matched in real time with the thermal expansion characteristics under the current temperature conditions, thereby improving installation accuracy.

[0018] Optionally, the position parameters include relative position constraints between each embedded part; during the process of using a laser tracker to provide real-time feedback of the three-dimensional coordinates of the embedded parts, the laser tracker simultaneously measures the spatial coordinates of multiple embedded parts and calculates the relative position deviation between the embedded parts. When the relative position deviation exceeds the preset range, the position data of other embedded parts are adjusted in conjunction with the position data of the target reference embedded part.

[0019] By adopting the above technical solution, this application upgrades precision control from single-point absolute coordinates to multi-point relative position constraints, which better meets the actual installation requirements of heavy equipment foundations. For example, the requirements for bolt hole spacing and coaxiality of compressor foundations are higher than the requirements for the absolute coordinates of a single bolt. Through linkage adjustment, the relative positions (such as coaxiality, parallelism, and center distance) between all embedded parts are simultaneously made to meet the design tolerances, minimizing the problem of equipment not being able to be positioned due to cumulative errors.

[0020] Optionally, performing finite element analysis on the BIM model also includes: Simulate the non-uniform deformation caused by uneven temperature field distribution during the hardening process of concrete to predict the offset trend of embedded parts. Based on the offset trend, a reverse offset is set for the embedded parts in the BIM model, so that the installation position of the embedded parts deviates from the design coordinates by a preset reverse offset value.

[0021] This application employs an adaptive positioning strategy with reverse offset to transform the unavoidable non-uniform deformation during concrete hardening into pre-adjustment of the embedded part's position, passively pushing the embedded part back to its theoretical design coordinates after concrete hardening. This application shifts from rigid resistance to deformation to flexible adaptation to deformation, further improving the final positioning accuracy of the embedded part without increasing additional construction costs.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. This application reduces the impact of thermal expansion of steel on the positioning deviation of embedded parts by presetting the temperature compensation value, so that the embedded parts are more in line with the theoretical design coordinates under high temperature working conditions.

[0023] 2. This application uses finite element analysis to determine the position parameters so that the installation position of the embedded part matches the temperature field and stress field of the concrete.

[0024] 3. This application uses a steel structure positioning frame as the installation benchmark for embedded parts, which reduces spatial conflicts between embedded parts and concrete and reinforcing bars, and realizes the coordinated construction of embedded parts and large-volume concrete. Attached Figure Description

[0025] Figure 1 This is a flowchart of Embodiment 1 of this application. Detailed Implementation

[0026] The following combination Figure 1 This application will be described in further detail.

[0027] Example 1: This example discloses a collaborative construction method for embedded parts and large-volume concrete, which is particularly suitable for the construction of large-volume concrete foundations for heavy equipment (such as compressor foundations and turbine generator foundations) in high-temperature areas. This example uses a compressor foundation of a certain project as an example. The foundation dimensions are 15m × 10m × 3m, with a total of 24 embedded parts. The installation accuracy requirement for each embedded part is ±1.5mm.

[0028] Reference Figure 1 The method includes: S1 modeling, S2 finite element analysis, and S3 installation. The execution process of each step in this embodiment is as follows: S1 modeling: Based on the installation accuracy requirements of heavy equipment (±1.5mm), determine the theoretical design coordinates of each embedded part, and establish a BIM model including embedded parts, steel structure positioning frame, steel bars, and cooling water pipes.

[0029] In modeling, this embodiment takes into account the thermal expansion effect of steel for high-temperature environments. Based on predicted ambient temperatures during the construction period, for example, a daytime high of 50°C and a nighttime low of 30°C in Saudi Arabia during summer, this embodiment uses the following formula to calculate the thermal expansion of the steel structure positioning frame or embedded parts:

[0030] in, The thermal expansion of the steel structure positioning frame or embedded parts; The coefficient of linear expansion of steel is 1.2 × 10⁻⁶. -5 / ℃; L is the characteristic dimension of the steel structure positioning frame or embedded part, or the design distance between two components; This represents the difference between the ambient temperature during the construction period and the standard temperature of 20°C, which refers to the ambient temperature in the weather forecast.

[0031] For example, the theoretical design center distance L of two pre-embedded bolts is 1000mm, meaning the final distance between the centers of the two bolts during equipment installation is 1000mm. If the predicted ambient temperature during daytime construction is 50℃... If the temperature is 30℃, then the thermal expansion of the embedded part (i.e., the temperature compensation value of the center distance between the two bolts) is:

[0032] To compensate for the thermal expansion, the center distance between the two bolts in the BIM model is set to 1000mm - 0.36mm = 999.64mm under the 20℃ installation condition.

[0033] After the BIM model is built, run the collision detection module to check for spatial conflicts between embedded parts, positioning frames, reinforcing bars, and cooling water pipes. If a collision is detected (such as interference between cooling water pipes and reinforcing bars), the component layout will be automatically or manually adjusted until there are no collision conflicts.

[0034] S2 finite element analysis involves importing the completed BIM model into finite element analysis software (such as ANSYS or ABAQUS) and using high-temperature environmental parameters as preset boundary conditions for simulation analysis.

[0035] In this embodiment, the preset boundary conditions include: the daily variation curve of ambient temperature (e.g., daytime peak of 50°C and nighttime trough of 30°C), concrete pouring temperature of 38°C, cement temperature of 65°C, aggregate temperature of 45°C, mixing water temperature of 25°C, and the additional temperature rise of the concrete surface caused by solar radiation (calculated as 6°C).

[0036] The spatiotemporal distribution of temperature and stress fields during the simulated concrete layer pouring process (in this embodiment, the thickness of each concrete layer is 400mm) is analyzed, with the control targets being a maximum temperature ≤75℃, an internal and external temperature difference ≤18℃, and a cooling rate ≤1.5℃ / day, to optimize the cooling water pipe layout parameters.

[0037] This embodiment compares various schemes (e.g., cooling water pipe spacing of 0.6m, 0.8m, 1.0m; number of pipe layers of 2, 3, 4; cooling water temperature of 15℃, 20℃, 25℃, etc.) to determine the optimal cooling water pipe layout parameters as follows: cooling water pipe spacing of 0.8m, 3 layers, cooling water temperature of 18℃, water flow rate of 2.0m³ / h, and water supply start-up time of 18 hours after concrete pouring.

[0038] In this embodiment, the finite element analysis of the BIM model also includes: simulating the non-uniform deformation of concrete during the hardening process caused by the uneven distribution of the temperature field (such as concrete shrinkage, warping caused by temperature gradient, etc.), and predicting the offset trend of each embedded part.

[0039] For example, simulation results show that a certain embedded part in the center area of ​​the foundation will shift 0.3mm to the southeast after the concrete hardens. This shift is an unavoidable deformation caused by the combined effects of concrete material properties and environmental conditions. To counteract this deformation, a reverse offset of 0.3mm is set for the embedded part in the BIM model, that is, its installation coordinates are shifted 0.3mm to the northwest. After the concrete hardens, due to non-uniform deformation, the final three-dimensional coordinates of the embedded part are the same as the theoretical design coordinates.

[0040] In other embodiments, this step further includes: a Mathcad verification sub-step, specifically: From the ANSYS / ABAQUS finite element analysis results, the axial force, shear force, and bending moment at the location of the embedded part under the most unfavorable working condition are read and used as the input loads for the local verification in Mathcad.

[0041] This example establishes the following three types of verification formulas in Mathcad: Strength verification: According to the "Steel Structure Design Standard" (GB 50017), calculate the section stress according to the member section type (axially loaded member or bending member), and verify whether the maximum stress is less than the material design strength to ensure that the member does not yield or fracture under load. Stress ratio = actual stress / design strength, and the stress ratio is less than or equal to 1.0.

[0042] Stiffness verification: Calculate the maximum deflection or elongation of each member under load, and verify whether it meets the design stiffness requirements of the positioning frame (e.g., the maximum deflection does not exceed 1 / 400 of the member span), so that the deformation of the positioning frame during the installation of the embedded parts does not exceed the allowable range of installation accuracy.

[0043] Stability verification: For compression members, calculate the overall stability coefficient as axially compressed members and verify their overall stable bearing capacity; for bending members, verify their overall bending and torsional stability to ensure that the members do not become unstable and fail under construction loads.

[0044] The verification criteria for Mathcad local verification are: bearing capacity ≥ load effect × safety factor, stress ratio ≤ 1.0, and anchorage length ≥ calculated length.

[0045] The results of the Mathcad partial verification are compared with those of the finite element method. If the deviation is greater than 15%, the cause is investigated. If the deviation is less than or equal to 15%, the verification is considered successful, and the parameters of the positioning frame and embedded parts are updated to the BIM model. If any verification item fails to meet the requirements, the cross-sectional dimensions of the steel structure positioning frame members are adjusted (e.g., increasing the cross-sectional size or adding stiffening ribs) or the support arrangement scheme is adjusted (e.g., adding scissor braces or shortening the calculated length of the members) until all verification items meet the requirements.

[0046] S3 installation involves establishing a measurement and control network using total stations and laser trackers at the construction site.

[0047] In response to the high-temperature environment, this embodiment arranges the measurement operation to be carried out from 5:00 to 8:00 in the early morning (when the ambient temperature is below 35°C). The total station and laser tracker are placed on site 30 minutes in advance to adapt to the ambient temperature.

[0048] The method further includes installing a steel structure positioning frame according to location parameters, installing embedded parts based on the steel structure positioning frame, and during the installation of embedded parts, the method also includes: Before the steel structure positioning frame is hoisted into place, the control points of the embedded parts installation coordinates are measured for the first time using a total station and a laser tracker to obtain measurement data. The measurement data is then corrected for temperature according to the coefficient of linear expansion of steel to obtain the corrected measurement data.

[0049] During the initial fixing of the positioning frame and the gradual adjustment of the embedded parts, this embodiment uses a laser tracker to provide real-time feedback of the three-dimensional coordinates of key points of the embedded parts. This is compared with the installation coordinates in the BIM model at millisecond levels to obtain the comparison results, i.e., the deviation of each coordinate value. All coordinate value deviations are controlled within ±0.5mm, allowing for concrete pouring. Before concrete pouring, this embodiment also fixes wireless temperature sensors to preset points on the steel structure positioning frame, ensuring the sensor's spatial position matches the measuring point coordinates in the BIM model. Each sensor is numbered and calibrated with initial values ​​before installation.

[0050] The laser tracker can also simultaneously measure the spatial coordinates of multiple embedded parts and calculate the relative positional deviations between them (such as center distance, coaxiality, and parallelism). When the relative positional deviation of one embedded part from other embedded parts exceeds a preset range (such as center distance deviation > 0.8 mm), the positional data of the target reference embedded part (such as the embedded part at the center position) is used as a reference to adjust the positional data of other embedded parts in a coordinated manner, so that the relative positions between all embedded parts meet the equipment installation requirements.

[0051] For example, when the actual center distance between two pre-embedded bolts is detected to deviate from the design center distance (including temperature compensation value) in the BIM model by more than 0.5mm, the required adjustment amount is calculated, and the operator is guided to make corrections using the fine-tuning device on the positioning frame.

[0052] After all the embedded parts are installed and the positioning frame is officially welded and fixed, the center coordinates, elevation and verticality of each embedded part are checked and verified in the early morning low temperature period to obtain the final measurement data. The final measurement data is also compared with the design value after being corrected by multi-factor coupling.

[0053] If the final measurement data does not meet expectations (e.g., the deviation of any embedded part is > ±1.5mm), an alarm signal will be issued.

[0054] When the final test data meets expectations, this embodiment uses a steel structure positioning frame as an attachment support to lay the cooling water pipes. The cooling water pipes are fixed to the crossbars of the positioning frame using pipe clamps or binding methods. The cooling water pipes are made of high-temperature resistant PE-RT pipes, and the connections are hot-melt welded and pressure tested. The test pressure is 0.8MPa, and the pressure is maintained for 30 minutes without pressure drop to prevent water leakage at high temperatures.

[0055] Concrete pouring is scheduled for early morning or nighttime to avoid the high temperatures of daytime. In this embodiment, pouring begins at 4:00 AM and continues continuously. The conveying pipeline is covered with wet burlap sacks for sun protection, and a mist of water is sprayed every 10 minutes to cool it down.

[0056] The concrete was poured in three layers, each approximately 400mm thick. The upper layer was covered before the lower layer of concrete had initially set. During the pouring process, each layer of concrete was vibrated to ensure compaction, and then covered with a plastic film to retain moisture.

[0057] This embodiment uses pre-embedded wireless temperature sensors to monitor real-time temperature data and automatically controls the cooling water system based on this data. The wireless temperature sensors collect real-time temperature data from each measuring point every 5 minutes and calculate the difference between the core temperature and surface temperature of the concrete, as well as the cooling rate, in real time. When the difference exceeds 15℃ (80% of the preset control threshold), the cooling water flow rate is automatically increased to 2.5 m³ / h; when the difference exceeds 18℃ (the control threshold), the backup cooling water pipeline is automatically opened and the water temperature is reduced to 15℃; when the cooling rate exceeds 1.5℃ / day, the cooling water flow rate is automatically reduced or the water supply is stopped.

[0058] In this embodiment, the temperature compensation value and design coordinates are updated in real time according to the construction progress during the construction process, specifically as follows: Before construction, the initial temperature compensation value is determined in advance based on the weather forecast (the daytime high temperature in the next 7 days will be 48-52℃) and used as the input parameter for BIM modeling.

[0059] During construction, an automatic weather station was set up on site to record the real-time ambient temperature every 30 minutes. When the real-time ambient temperature deviated from the forecast temperature by more than ±3℃, the temperature compensation value was automatically recalculated. After recalculating the thermal expansion, the corrected temperature compensation value was obtained, and the installation coordinates in the BIM model were updated accordingly.

[0060] Taking the center distance compensation of pre-embedded bolt groups as an example, the dynamic update formula for temperature compensation values ​​is:

[0061] in, The thermal expansion amount after the steel structure positioning frame or embedded parts are updated; The coefficient of linear expansion of steel is 1.2 × 10⁻⁶. -5 / ℃; L is the characteristic dimension of the steel structure positioning frame or embedded part, or the design distance between two components; This represents the difference between the real-time ambient temperature and the standard temperature of 20℃ during the construction period.

[0062] The updated installation center distance is equal to the characteristic dimension of the steel structure positioning frame or embedded part, or the design distance L between the two components, and the updated thermal expansion of the steel structure positioning frame or embedded part. difference.

[0063] Similarly, for the single-point coordinates of the positioning frame node, the calculation model for the updated installation coordinates is as follows:

[0064] in, The updated installation coordinates; The installation coordinates before the update; This represents the thermal expansion amount after the steel structure positioning frame or embedded parts are updated; the minus or plus sign depends on the relationship between the expansion direction and the positive direction of the coordinate axis.

[0065] By correcting the installation status of embedded parts and positioning frames to match the thermal expansion characteristics under different ambient temperatures, installation deviations caused by temperature fluctuations are reduced.

[0066] Immediately after concrete pouring, cover it with geotextile and plastic film for moisture retention and heat preservation curing. The automatic sprinkler system adjusts the spraying interval based on ambient temperature and humidity: when the ambient temperature is above 40℃ and humidity is below 30%, spray every 30 minutes for 2 minutes each time; when the ambient temperature is below 35℃, spray every 2 hours, with a curing period of 14 days. During curing, temperature monitoring is continuous, with real-time temperature data recorded at each measuring point every 4 hours. Water cooling is stopped when the temperature difference between the inside and outside of the concrete stabilizes within 10℃ and the cooling rate is below 0.5℃ / day.

[0067] Once the concrete strength reaches 75% of the design strength, remove the exposed portion of the positioning frame (if the positioning frame is designed to be removable). After removal, perform a final accuracy retest on each embedded part, and store the retest results in the project quality archive.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for the coordinated construction of embedded parts and large-volume concrete, characterized in that, include: Construct a BIM model that includes embedded parts and a steel structure positioning frame. The BIM model is pre-set with temperature compensation values ​​for the embedded parts and the steel structure positioning frame. Import the BIM model into the finite element analysis software, perform finite element analysis on the BIM model based on preset boundary conditions, and obtain the location parameters. Install the steel structure positioning frame according to the location parameters, and then install the embedded parts based on the steel structure positioning frame.

2. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, The method further includes the following steps during the installation of embedded parts: Before the steel structure positioning frame is hoisted into place, the control points of the design coordinates of the embedded parts in the target parameters are measured for the first time using a total station and a laser tracker to obtain measurement data. The measurement data is then corrected for temperature according to the coefficient of linear expansion of steel to obtain corrected measurement data. During the installation of embedded parts according to the corrected measurement data, a laser tracker is used to provide real-time feedback on the three-dimensional coordinates of the embedded parts, which are compared with the design coordinates in the position parameters to obtain the comparison results. Concrete is poured when the comparison results meet expectations. After the concrete is poured, the center coordinates, elevation, and verticality of each embedded part are measured again to obtain the final measurement data. An alarm signal is issued when the final measurement data does not meet expectations.

3. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, The BIM model also includes steel bars and cooling water pipes; after the BIM model is built, collision detection is performed between the components, and the component layout is adjusted according to the collision detection results.

4. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, The preset boundary conditions include the daily variation curve of ambient temperature, the concrete pouring temperature, the raw material temperature, and the additional temperature rise of the concrete surface due to solar radiation.

5. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, The finite element analysis also includes: simulating the spatiotemporal distribution of temperature and stress fields during the layered casting process, determining the layout parameters of cooling water pipes through simulation analysis, and laying cooling water pipes according to the layout parameters.

6. The method for coordinated construction of embedded parts and large-volume concrete according to claim 2, characterized in that, The method further includes: updating the temperature compensation value and design coordinates in real time according to the construction progress, specifically: determining the temperature compensation value in advance based on the weather forecast before construction, dynamically correcting the temperature compensation value according to the real-time ambient temperature during construction to obtain the corrected temperature compensation value, and updating the design coordinates based on the corrected temperature compensation value and the original temperature compensation value.

7. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, The position parameters include the relative position constraints between each embedded part; during the process of using a laser tracker to provide real-time feedback of the three-dimensional coordinates of the embedded part, the laser tracker simultaneously measures the spatial coordinates of multiple embedded parts and calculates the relative position deviation between the embedded parts. When the relative position deviation exceeds the preset range, the position data of other embedded parts are adjusted in conjunction with the position data of the target reference embedded part.

8. The method for coordinated construction of embedded parts and large-volume concrete according to claim 1, characterized in that, Finite element analysis of a BIM model also includes: Simulate the non-uniform deformation caused by uneven temperature field distribution during the hardening process of concrete to predict the offset trend of embedded parts. Based on the offset trend, a reverse offset is set for the embedded parts in the BIM model, so that the installation position of the embedded parts deviates from the design coordinates by a preset reverse offset value.

Citation Information

Patent Citations

  • BIM (Building Information Modeling)-based embedded sleeve visual positioning and mounting method and device

    CN118358039A