A construction method for cast-in-situ textured concrete with complex curved surfaces

Abstract

The present invention provides a construction method for cast-in-situ textured concrete on a complex curved surface, which belongs to the technical field of building construction. The construction method for cast-in-situ textured concrete on a complex curved surface comprises the following steps: preliminary preparation; constructing a BIM model for pouring cast-in-situ textured concrete on a complex curved surface; using a convolutional neural network model to determine a suitable temperature for concrete solidification and calculate the thickness of an insulation layer; building a template according to the BIM model for pouring cast-in-situ textured concrete on a complex curved surface, determining the shape and size of the concrete, and wrapping an insulation layer on the outside of the template according to the thickness of the insulation layer determined by the convolutional neural network model; building a steel skeleton; installing a stability monitoring system; pouring concrete; and polishing and curing. The method can solve the problem that the temperature difference between the concrete and the external environment during the solidification process of the existing cast-in-situ textured concrete on a curved surface cannot be accurately controlled during construction, resulting in incomplete concrete solidification, prone to cracks, and affecting the appearance of the concrete.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and in particular relates to a construction method of cast-in-situ textured concrete with complex curved surfaces. Background Art

[0002] Cast-in-place textured concrete is a special concrete structure with strong decorative properties. It has rich forms and shapes in appearance and can simulate various natural materials and patterns.

[0003] Cast-in-place textured concrete requires that the cement, sand, stone and other materials used in construction projects have high quality and stability. In addition, to ensure the clarity and effect of the texture, the pouring temperature, humidity, external environmental conditions, etc. of the concrete also need to be precisely controlled. Because textured concrete has a rich variety of shapes and curves, the construction process requires the use of corresponding technologies and tools to accurately shape and carve the concrete. In order to ensure the fineness and performance of the surface or carved texture of the textured concrete, various surface treatment technologies are required. Cast-in-place textured concrete requires long-term use and maintenance, which also requires the quality and stability of the textured concrete construction.

[0004] During the construction of existing curved surface cast-in-place textured concrete, it is impossible to accurately control the temperature difference between the concrete and the external environment during the solidification process, resulting in incomplete solidification of the concrete and easy cracking, which affects the appearance of the concrete. Summary of the Invention

[0005] In view of this, the present invention provides a construction method for cast-in-place textured concrete with complex curved surfaces, which can solve the problem that the temperature difference between the concrete and the external environment during the solidification process of existing cast-in-place textured concrete with curved surfaces cannot be accurately controlled during construction, resulting in incomplete solidification of the concrete, easy cracking, and affecting the appearance of the concrete.

[0006] The present invention is achieved in that:

[0007] The present invention provides a construction method for cast-in-situ textured concrete on a complex curved surface, which includes the following methods:

[0008] S10: Preliminary preparation: Before pouring concrete, complete the preliminary preparation work, which includes: determining the concrete pouring area, cleaning the surface of the concrete pouring area, and preparing the tools and equipment required for the concrete pouring;

[0009] S20: Constructing a BIM model of the complex curved surface cast-in-place textured concrete pouring; using OpenBuildingsDesigner software to construct a BIM model of the complex curved surface cast-in-place textured concrete pouring according to the construction drawings of the complex curved surface cast-in-place textured concrete pouring and the surrounding environment of the complex curved surface cast-in-place textured concrete pouring area;

[0010] S30: Use the convolutional neural network model to determine the optimal temperature for concrete solidification and calculate the thickness of the insulation layer;

[0011] S40: Building a formwork; building a formwork according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining the shape and size of the concrete, and wrapping the outer side of the formwork with an insulation layer according to the thickness of the insulation layer determined by the convolutional neural network model;

[0012] S50: Building a steel skeleton; determining stress conditions at different positions according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, dividing the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining installation positions of the steel skeleton at the intersections of the divided areas, and installing the steel skeleton inside the formwork according to the installation positions of the steel skeleton;

[0013] S60: Installing a stability monitoring system; installing a stability monitoring system on the steel skeleton to monitor the stability of the subsequently cast complex curved surface cast-in-place textured concrete model;

[0014] S70: pouring concrete; mixing the concrete evenly according to the mix ratio, testing its fluidity, water content, and uniformity, and then delivering the concrete to the pouring area via a concrete pump. The concrete is evenly introduced into the complex curved surface cast-in-place textured concrete formwork, and the concrete is degassed;

[0015] S80: Polishing and curing: After the complex curved surface cast-in-place textured concrete model is solidified, its surface is polished and cured.

[0016] By completing the preliminary preparation work before pouring concrete; building a BIM model of concrete pouring according to the concrete pouring construction drawings and the surrounding environment of the concrete pouring area; using a convolutional neural network model to determine the minimum temperature for concrete solidification and calculate the thickness of the insulation layer; building the formwork and wrapping the insulation layer according to the BIM model of concrete pouring; installing the steel skeleton inside the formwork according to the installation position of the steel skeleton; installing a stability monitoring system on the steel skeleton; mixing the concrete evenly according to the ratio, and after testing its fluidity, water content and uniformity, the concrete is transported to the pouring area through a concrete pump, the concrete is evenly introduced into the formwork, and the concrete is degased. This can solve the problem of incomplete concrete solidification and easy cracking due to large outdoor temperature differences, accelerate concrete solidification, prevent the formation of bubbles, and affect construction quality.

[0017] On the basis of the above technical solution, the construction method of a complex curved surface cast-in-situ textured concrete of the present invention can also be improved as follows:

[0018] The specific steps of “building a template according to the BIM model of the complex curved surface cast-in-place textured concrete” include:

[0019] The first step is to cut the inner and outer formwork according to the BIM model of the complex curved surface cast-in-place textured concrete pouring;

[0020] The second step is to polish the inner template;

[0021] The third step is to prepare an adhesive and spray it evenly on the inner template to connect the inner template to the outer template;

[0022] The fourth step is to spray a release agent on the side of the inner template away from the outer template.

[0023] Furthermore, the inner template is a molding film, and the outer template is a wooden template or a steel template;

[0024] The release agent can be selected from one of an oil-water emulsion release agent, an acrylic ester emulsion release agent and a polymer emulsion release agent.

[0025] Furthermore, the specific steps of “using a convolutional neural network model to determine the appropriate temperature for concrete solidification and calculate the thickness of the insulation layer” include:

[0026] In the first step, multiple temperature sensors are used to collect the surface and internal temperatures of concrete of different thicknesses and mix ratios at regular time intervals.

[0027] The second step is to process the collected temperature data;

[0028] The third step is to divide the processed data set into a training set, a validation set, and a test set. The training set is used for model training, the validation set is used for model parameter adjustment, and the test set is used for model performance evaluation.

[0029] The fourth step is to build a convolutional neural network model according to the designed network structure by using multi-layer convolution, pooling, full connection and dropout operations to extract the features of the data and reduce the overfitting of the network;

[0030] In the fifth step, the thickness and mix ratio of the concrete are used as input values ​​and the processed temperature data is used as output for training. The stochastic gradient descent algorithm is used to optimize the training process to minimize the training error and optimize the loss function.

[0031] The sixth step is to use the data of the validation set to verify the trained model to avoid overfitting. If the accuracy of the validation set begins to decrease, adjust the model parameters or change the network structure;

[0032] Step 7: Using the test set data to evaluate the accuracy of the model;

[0033] In the eighth step, the required concrete thickness and mix ratio data are input into the convolutional neural network model to obtain the suitable solidification temperature of the concrete model; wherein, the formula for determining the suitable solidification temperature of the concrete model is:

[0034] ;

[0035] in, The suitable temperature for concrete solidification; is the outdoor temperature; is the specific heat capacity of concrete; is the expected setting speed of concrete; is the total volume of concrete after mixing; is the weight of water; is the weight of cement; is the weight of aggregate; is the fitting parameter;

[0036] The ninth step is to determine the thickness of the insulation layer according to the suitable temperature for the concrete to solidify.

[0037] The data processing includes data cleaning and normalization preprocessing. The data cleaning uses methods such as interpolation and downsampling to remove abnormal noise points. The normalization processing can scale the data to a range of 0 to 1. The test indicators of the evaluation are root mean square error (RMSE) and mean absolute error (MAE).

[0038] Furthermore, the specific steps of “determining the thickness of the insulation layer according to the suitable temperature for concrete solidification” include:

[0039] The first step is to use a temperature probe to measure the temperature of the concrete surface and the ambient temperature around the concrete pouring location multiple times at different time periods;

[0040] The second step is to perform minimum value processing on the measured ambient temperature;

[0041] The third step is to calculate the thickness of the insulation layer based on the minimum temperature after treatment and the suitable solidification temperature. The formula is as follows:

[0042] ;

[0043] Among them, t is the thickness of the insulation layer, c is the thermal resistance of the insulation material, k is the thermal conductivity of the insulation material, For the suitable solidification temperature, is the minimum temperature after treatment.

[0044] Furthermore, the specific steps of “determining stress conditions at different positions according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, dividing the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining the installation position of the steel skeleton at the intersection of the divided areas, and installing the steel skeleton inside the formwork according to the installation position of the steel skeleton” include:

[0045] The first step is to inspect the formwork and the support to ensure their stability and safety;

[0046] The second step is to determine the stress conditions at different positions based on the BIM model of the complex curved surface cast-in-place textured concrete pouring, divide the BIM model of the concrete pouring, determine the installation position of the steel skeleton at the intersection of the divided areas, measure the length of the steel skeleton, and cut and weld the steel bars to form a prefabricated steel skeleton;

[0047] The third step is to install the prefabricated steel frame on the template and the support;

[0048] The fourth step is to use a steel bar welding machine to weld the steel bars to the support.

[0049] Furthermore, the specific steps of “uniformly introducing concrete into the complex curved surface cast-in-place textured concrete formwork to exhaust the concrete” include:

[0050] A vibrator is attached to the concrete formwork, and the angle and position of the vibrator are adjusted as needed. During the concrete pouring process, the vibrator is used to perform directional vibration to lift bubbles in the concrete from the flow area of ​​the concrete to the pouring surface, thereby expelling the air in the concrete.

[0051] Furthermore, the specific steps of “curing the surface of the complex curved surface cast-in-situ textured concrete model after solidification” include:

[0052] Within 24 hours after the concrete pouring is completed, water is sprayed on the concrete several times to moisturize the concrete surface. The water spraying process is 3 to 5 times a day and continues for 7 to 10 days.

[0053] The specific steps of “using OpenBuildlings Designer software to construct a BIM model of complex curved surface cast-in-place textured concrete pouring based on the concrete pouring construction drawings and the surrounding environment of the concrete pouring area” include:

[0054] The first step is to determine the scope of modeling and modeling parameters based on the concrete pouring construction drawings and the surrounding environment of the concrete pouring area, and to archive and organize the data information;

[0055] The second step is to input the data information into OpenBuildlings Designer software to generate a three-dimensional BIM model of the concrete pouring;

[0056] The third step is to add construction information based on the BIM model of the concrete pouring according to construction requirements, wherein the construction information includes main components, construction procedures, time plan and material information;

[0057] The fourth step is to analyze and calculate the construction information using OpenBuildlings Designer software to obtain collision detection, material usage calculation, cost estimation, and construction performance analysis data;

[0058] The fifth step is to optimize the BIM model of the concrete pouring.

[0059] Compared with the prior art, the beneficial effects of the construction method of complex curved surface cast-in-place textured concrete provided by the present invention are as follows: by completing preliminary preparation work before concrete pouring; constructing a BIM model of concrete pouring based on the concrete pouring construction drawings and the surrounding environment of the concrete pouring area; using a convolutional neural network model to determine the minimum temperature for concrete solidification and calculate the thickness of the insulation layer; building a formwork and wrapping the insulation layer according to the BIM model of concrete pouring; installing a steel skeleton inside the formwork according to the installation position of the steel skeleton; installing a stability monitoring system on the steel skeleton; mixing the concrete evenly according to the mix ratio, testing its fluidity, water content and uniformity, and then transporting the concrete to the pouring area through a concrete pump, uniformly introducing the concrete into the formwork, and venting the concrete. This method can solve the problem of incomplete concrete solidification and easy cracking due to large outdoor temperature differences, accelerate concrete solidification, prevent the formation of bubbles, and affect construction quality. It can also solve the problem that the temperature difference between the concrete and the external environment during the solidification process of existing curved surface cast-in-place textured concrete cannot be accurately controlled during construction, resulting in incomplete concrete solidification, easy cracking, and affecting the appearance of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0061] Figure 1 This is a specific flow chart of a construction method for cast-in-situ textured concrete on complex curved surfaces. DETAILED DESCRIPTION

[0062] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0063] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0064] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0067] like Figure 1 FIG. 1 is a flow chart of a method for constructing cast-in-situ textured concrete on a complex curved surface provided by the present invention, which includes the following methods:

[0068] S10: Preliminary preparation: Before pouring concrete, complete the preliminary preparation work, which includes: determining the concrete pouring area, cleaning the surface of the concrete pouring area, and preparing the tools and equipment required for concrete pouring;

[0069] S20: Construct a BIM model for complex curved surface cast-in-place textured concrete pouring; Use OpenBuildingsDesigner software to construct a BIM model for complex curved surface cast-in-place textured concrete pouring based on the construction drawings of the complex curved surface cast-in-place textured concrete pouring and the surrounding environment of the complex curved surface cast-in-place textured concrete pouring area;

[0070] S30: Use the convolutional neural network model to determine the optimal temperature for concrete solidification and calculate the thickness of the insulation layer;

[0071] S40: Build the formwork; build the formwork according to the BIM model of complex curved surface cast-in-place textured concrete pouring, determine the shape and size of the concrete, and wrap the insulation layer on the outside of the formwork according to the insulation layer thickness determined by the convolutional neural network model;

[0072] S50: Build the steel skeleton; determine the stress conditions at different positions based on the BIM model of the complex curved surface cast-in-place textured concrete pouring, divide the BIM model of the complex curved surface cast-in-place textured concrete pouring, determine the installation position of the steel skeleton at the intersection of the divided areas, and install the steel skeleton inside the formwork according to the installation position of the steel skeleton;

[0073] S60: Install a stability monitoring system. Install a stability monitoring system on the steel skeleton to monitor the stability of the subsequently cast complex curved surface cast-in-place textured concrete model.

[0074] S70: pouring concrete; the concrete is mixed evenly according to the mix ratio, and after testing its fluidity, water content, and uniformity, the concrete is transported to the pouring area via a concrete pump. The concrete is evenly introduced into the complex curved surface cast-in-place textured concrete formwork and the concrete is degassed;

[0075] S80: Polishing and curing: After the complex curved surface cast-in-place textured concrete model is solidified, its surface is polished and cured.

[0076] Among them, in the above technical solution, the specific steps of "building a template according to the BIM model of cast-in-place textured concrete pouring on complex curved surfaces" include:

[0077] The first step is to cut the inner and outer formwork according to the BIM model of the complex curved surface cast-in-place textured concrete;

[0078] The second step is to polish the inner template;

[0079] The third step is to prepare the adhesive and spray it evenly on the inner template to connect the inner template with the outer template;

[0080] Step 4: Spray release agent on the side of the inner formwork away from the outer formwork.

[0081] Furthermore, in the above technical solution, the inner template is a molding film, and the outer template is a wooden template or a steel template;

[0082] The release agent can be selected from one of an oil-water emulsion type release agent, an acrylic ester emulsion type release agent and a polymer emulsion type release agent.

[0083] Furthermore, in the above technical solution, the specific steps of “using a convolutional neural network model to determine the appropriate temperature for concrete solidification and calculate the thickness of the insulation layer” include:

[0084] In the first step, multiple temperature sensors are used to collect the surface and internal temperatures of concrete of different thicknesses and mix ratios at regular time intervals.

[0085] The second step is to process the collected temperature data;

[0086] The third step is to divide the processed data set into training set, validation set, and test set. The training set is used for model training, the validation set is used for model parameter adjustment, and the test set is used for model performance evaluation.

[0087] The fourth step is to build a convolutional neural network model based on the designed network structure by using multi-layer convolution, pooling, full connection and dropout operations to extract data features and reduce network overfitting;

[0088] In the fifth step, the thickness and mix ratio of concrete are used as input values ​​and the processed temperature data is used as output for training. The stochastic gradient descent algorithm is used to optimize the training process to minimize the training error and optimize the loss function.

[0089] The sixth step is to use the validation set data to verify the trained model to avoid overfitting. If the accuracy of the validation set begins to decline, adjust the model parameters or change the network structure.

[0090] Step 7: Use the test set data to evaluate the accuracy of the model;

[0091] In the eighth step, the required concrete thickness and mix ratio data are input into the convolutional neural network model to obtain the appropriate temperature for the concrete model to solidify. The formula for determining the appropriate temperature for the concrete model to solidify is:

[0092] ;

[0093] in, The suitable temperature for concrete solidification; is the outdoor temperature; is the specific heat capacity of concrete; is the expected setting speed of concrete; is the total volume of concrete after mixing; is the weight of water; is the weight of cement; is the weight of aggregate; is the fitting parameter;

[0094] Step 9: Determine the thickness of the insulation layer based on the appropriate temperature for concrete solidification.

[0095] Data processing includes data cleaning and normalization preprocessing. Data cleaning uses methods such as interpolation and downsampling to remove abnormal noise points. Normalization processing can scale the data to the range of 0~1. The evaluation test indicators are root mean square error (RMSE) and mean absolute error (MAE).

[0096] Furthermore, in the above technical solution, the specific steps of “determining the thickness of the insulation layer according to the suitable temperature for concrete solidification” include:

[0097] The first step is to use a temperature probe to measure the temperature of the concrete surface and the ambient temperature around the concrete pouring location multiple times at different time periods;

[0098] The second step is to perform minimum value processing on the measured ambient temperature;

[0099] The third step is to calculate the thickness of the insulation layer based on the minimum temperature after treatment and the suitable solidification temperature. The formula is as follows:

[0100] ;

[0101] Among them, t is the thickness of the insulation layer, c is the thermal resistance of the insulation material, k is the thermal conductivity of the insulation material, For the suitable solidification temperature, is the minimum temperature after treatment.

[0102] Furthermore, in the above technical solution, the specific steps of "determining stress conditions at different positions based on the BIM model of the complex curved surface cast-in-place textured concrete pouring, dividing the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining the installation position of the steel skeleton at the intersection of the divided areas, and installing the steel skeleton inside the formwork according to the installation position of the steel skeleton" include:

[0103] The first step is to check the formwork and support to ensure their stability and safety;

[0104] The second step is to determine the stress conditions at different locations based on the BIM model of the complex curved surface cast-in-place textured concrete pouring. The BIM model of the concrete pouring is divided, and the installation position of the steel skeleton is determined at the intersection of the divided areas. The length of the steel skeleton is measured, and the steel bars are cut and welded to form a prefabricated steel skeleton.

[0105] The third step is to install the prefabricated steel frame on the formwork and supports;

[0106] The fourth step is to use a steel bar welding machine to weld the steel bars to the support.

[0107] Furthermore, in the above technical solution, the specific steps of "uniformly introducing concrete into a complex curved cast-in-place textured concrete formwork to exhaust the concrete" include:

[0108] Attach the vibrator to the concrete formwork and adjust the angle and position of the vibrator as needed. During the concrete pouring process, the vibrator is used for directional vibration to lift the bubbles in the concrete from the flow area of ​​the concrete to the pouring surface and expel the air in the concrete.

[0109] Furthermore, in the above technical solution, the specific steps of "curing the surface of the cast-in-situ textured concrete model with complex curved surface after solidification" include:

[0110] Within 24 hours after the concrete pouring is completed, spray water on the concrete several times to moisturize the concrete surface. The water spraying process should be done 3 to 5 times a day for 7 to 10 days.

[0111] The specific steps for using OpenBuildlings Designer software to build a BIM model of complex curved surface cast-in-place textured concrete placement based on the concrete placement construction drawings and the surrounding environment of the concrete placement area include:

[0112] The first step is to determine the scope of modeling, determine the modeling parameters, and archive the data information based on the concrete pouring construction drawings and the surrounding environment of the concrete pouring area;

[0113] The second step is to input the data information into OpenBuildlings Designer software to generate a 3D concrete pouring BIM model;

[0114] The third step is to add construction information based on the concrete pouring BIM model according to construction requirements. The construction information includes main components, construction procedures, time plan and material information.

[0115] The fourth step is to analyze and calculate the construction information using OpenBuildlings Designer software to obtain data for collision detection, material usage calculation, cost estimation, and construction performance analysis.

[0116] Step 5: Optimize the BIM model of concrete pouring.

[0117] Specifically, the principles of the present invention are as follows: before pouring concrete, preliminary preparations are completed; a BIM model of the concrete pouring is constructed using OpenBuildlings Designer software based on the concrete pouring construction drawings and the surrounding environment of the concrete pouring area; a convolutional neural network model is used to determine the minimum temperature at which concrete solidifies and calculate the thickness of the insulation layer; a formwork is constructed according to the BIM model of the concrete pouring, the shape and size of the concrete are determined, and an insulation layer is wrapped around the outside of the formwork according to the insulation layer thickness determined by the convolutional neural network model; the stress conditions at different locations are determined according to the BIM model of the concrete pouring, the BIM model of the concrete pouring is divided, the installation positions of the steel skeleton are determined at the intersections of the divided areas, and the steel skeleton is installed inside the formwork according to the installation positions of the steel skeleton; a stability monitoring system is installed on the steel skeleton to monitor the stability of the subsequently poured concrete model; the concrete is mixed uniformly according to the mix ratio, and its fluidity, water content, and uniformity are tested. The concrete is then pumped to the pouring area, the concrete is evenly introduced into the formwork, and the concrete is degased; and after the poured concrete model solidifies and forms, its surface is polished and cured.

[0118] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A construction method for cast-in-situ textured concrete on complex curved surfaces, characterized in that: This includes the following methods: S10: Preliminary preparation; Before pouring concrete, complete the preliminary preparation work, which includes: determining the concrete pouring area, cleaning the surface of the concrete pouring area, and preparing the tools and equipment required for the concrete pouring; S20: Constructing a BIM model of the complex curved surface cast-in-place textured concrete pouring; using OpenBuildlings Designer software to construct the BIM model of the complex curved surface cast-in-place textured concrete pouring according to the construction drawings of the complex curved surface cast-in-place textured concrete pouring and the surrounding environment of the complex curved surface cast-in-place textured concrete pouring area; S30: Use the convolutional neural network model to determine the optimal temperature for concrete solidification and calculate the thickness of the insulation layer; S40: Building a formwork; building a formwork according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining the shape and size of the concrete, and wrapping the outer side of the formwork with an insulation layer according to the thickness of the insulation layer determined by the convolutional neural network model; S50: Building a steel skeleton; determining stress conditions at different positions according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, dividing the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining installation positions of the steel skeleton at the intersections of the divided areas, and installing the steel skeleton inside the formwork according to the installation positions of the steel skeleton; S60: Installing a stability monitoring system; installing a stability monitoring system on the steel skeleton to monitor the stability of the subsequently cast complex curved surface cast-in-place textured concrete model; S70: pouring concrete; mixing the concrete evenly according to the mix ratio, testing its fluidity, water content, and uniformity, and then delivering the concrete to the pouring area via a concrete pump. The concrete is evenly introduced into the complex curved surface cast-in-place textured concrete formwork, and the concrete is degassed; S80: Polishing and curing: After the complex curved surface cast-in-place textured concrete model is solidified, its surface is polished and cured.

2. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 1, characterized in that: The specific steps of "building a template according to the BIM model of the complex curved surface cast-in-place textured concrete pouring" include: The first step is to cut the inner and outer formwork according to the BIM model of the complex curved surface cast-in-place textured concrete pouring; The second step is to polish the inner template; The third step is to prepare an adhesive and spray it evenly on the inner template to connect the inner template to the outer template; The fourth step is spraying a release agent on the side of the inner template away from the outer template.

3. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 2, characterized in that: The inner template is a molding film, and the outer template is a wooden template or a steel template; The release agent can be selected from one of an oil-water emulsion release agent, an acrylic ester emulsion release agent and a polymer emulsion release agent.

4. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 3, characterized in that: The specific steps of "using a convolutional neural network model to determine the appropriate temperature for concrete solidification and calculate the thickness of the insulation layer" include: In the first step, multiple temperature sensors are used to collect the surface and internal temperatures of concrete of different thicknesses and mix ratios at regular time intervals. The second step is to process the collected temperature data; The third step is to divide the processed data set into a training set, a validation set, and a test set. The training set is used for model training, the validation set is used for model parameter adjustment, and the test set is used for model performance evaluation. The fourth step is to build a convolutional neural network model according to the designed network structure by using multi-layer convolution, pooling, full connection and dropout operations to extract the features of the data and reduce the overfitting of the network; In the fifth step, the thickness and mix ratio of the concrete are used as input values ​​and the processed temperature data is used as output for training. The stochastic gradient descent algorithm is used to optimize the training process to minimize the training error and optimize the loss function. The sixth step is to use the data of the validation set to verify the trained model to avoid overfitting. If the accuracy of the validation set begins to decrease, adjust the model parameters or change the network structure; Step 7: Using the test set data to evaluate the accuracy of the model; In the eighth step, the required concrete thickness and mix ratio data are input into the convolutional neural network model to obtain the suitable solidification temperature of the concrete model; wherein, the formula for determining the suitable solidification temperature of the concrete model is: ； in, The suitable temperature for concrete solidification; is the outdoor temperature; is the specific heat capacity of concrete; is the expected setting speed of concrete; is the total volume of concrete after mixing; is the weight of water; is the weight of cement; is the weight of aggregate; is the fitting parameter; The ninth step is to determine the thickness of the insulation layer according to the suitable temperature for the concrete to solidify.

5. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 4, characterized in that: The specific steps of "determining the thickness of the insulation layer according to the suitable temperature for concrete solidification" include: The first step is to use a temperature probe to measure the temperature of the concrete surface and the ambient temperature around the concrete pouring location multiple times at different time periods; The second step is to perform minimum value processing on the measured ambient temperature; The third step is to calculate the thickness of the insulation layer based on the minimum temperature after treatment and the suitable solidification temperature. The formula is as follows: ； Among them, t is the thickness of the insulation layer, c is the thermal resistance of the insulation material, k is the thermal conductivity of the insulation material, For the suitable solidification temperature, is the minimum temperature after treatment.

6. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 5, characterized in that: The specific steps of "determining stress conditions at different positions according to the BIM model of the complex curved surface cast-in-place textured concrete pouring, dividing the BIM model of the complex curved surface cast-in-place textured concrete pouring, determining the installation position of the steel skeleton at the intersection of the divided areas, and installing the steel skeleton inside the template according to the installation position of the steel skeleton" include: The first step is to check the formwork and support to ensure their stability and safety; The second step is to determine the stress conditions at different positions based on the BIM model of the complex curved surface cast-in-place textured concrete pouring, divide the BIM model of the concrete pouring, determine the installation position of the steel skeleton at the intersection of the divided areas, measure the length of the steel skeleton, and cut and weld the steel bars to form a prefabricated steel skeleton; The third step is to install the prefabricated steel frame on the template and the support; The fourth step is to use a steel bar welding machine to weld the steel bars to the support.

7. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 6, characterized in that: The specific steps of "uniformly introducing concrete into the complex curved surface cast-in-place textured concrete formwork and exhausting the concrete" include: A vibrator is attached to the concrete formwork, and the angle and position of the vibrator are adjusted as needed. During the concrete pouring process, the vibrator is used to perform directional vibration to lift bubbles in the concrete from the flow area of ​​the concrete to the pouring surface, thereby expelling the air in the concrete.

8. A construction method for cast-in-situ textured concrete on complex curved surfaces according to claim 7, characterized in that: The specific steps of "curing the surface of the complex curved surface cast-in-situ textured concrete model after solidification" include: Within 24 hours after the concrete pouring is completed, water is sprayed on the concrete several times to moisturize the concrete surface. The water spraying process is 3 to 5 times a day and continues for 7 to 10 days.

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