Concrete formwork support deformation monitoring system and method

Abstract

The present invention relates to the technical field of concrete formwork support deformation, and specifically discloses a concrete formwork support deformation monitoring system and method, comprising: a support model construction module, a support data acquisition module, a vibration deformation early warning module, a vibration parameter correlation feedback module and a database; the present invention constructs a three-dimensional model of the formwork support by using a three-dimensional scanner and marks key points, constructs a time-support deformation curve based on the horizontal displacement, vertical deformation, three-dimensional coordinate values ​​and pressure data of each key point during the vibration operation, calculates the support deformation by calculating the offset, inclination and pressure anomaly, and issues an early warning; finally, calculates the correlation coefficient between the vibration operation parameters and the support deformation, clarifies the influencing trend and provides feedback. The present invention can comprehensively monitor the deformation of the formwork support, timely warn of safety hazards, provide a basis for optimizing the vibration operation parameters, and improve construction safety and concrete pouring quality.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete formwork support deformation, and relates to a concrete formwork support deformation monitoring system and method. Background Art

[0002] In modern building construction, concrete pouring is an extremely critical link, and the stability of the formwork support structure is directly related to the quality of concrete pouring and construction safety. With the continuous improvement of the scale and complexity of construction projects, the need to monitor the formwork support structure is becoming increasingly urgent. During the concrete vibration operation, operating parameters such as the vibration force and the depth of the vibrating rod will have an impact on the formwork support structure. If these effects cannot be monitored in real time and accurately, serious problems such as formwork collapse and concrete pouring defects may occur, which will not only delay the construction period, but may also cause casualties and economic losses. Therefore, it is crucial to develop a system that can comprehensively, in real time and accurately monitor the deformation of concrete formwork supports.

[0003] For example, Chinese patent publication number CN106092036A discloses a remote real-time monitoring system and method for deformation of a formwork support frame, comprising: an angle sensor, a displacement sensor, a measuring rope, a wireless data transmission device, a data acquisition instrument, a remote computer and an audio-visual alarm module; the angle sensor is fixed inside a measuring box, and the measuring box is installed at the monitoring position of the formwork support frame as an upper measuring point, and the angle sensor is used to measure the inclination angle θ of the line connecting the upper measuring point and the foot of the plumb line on the ground before and after deformation; the displacement sensor is fixed on the ground as a lower measuring point; one end of the measuring rope is fixed to the upper measuring point, and the other end is fixed to the displacement sensor, and the displacement sensor is used to measure the elongation δ of the measuring rope, and the wireless data transmission device is used to send the data θ and δ of the angle sensor and the displacement sensor to the data acquisition instrument, and the horizontal displacement x, vertical displacement y, total displacement r and inclination angle θ of the measuring point are displayed in real time through the remote computer; the structure is simple, easy to use and low cost.

[0004] For example, Chinese Patent Publication No. CN112129239A discloses a method and apparatus for monitoring a building formwork support system, comprising: obtaining a first distance and first coordinate of at least one monitoring point at a first moment, the monitoring point being a force-bearing point in the building formwork support system; obtaining a second distance and second coordinate of the monitoring point at a second moment; calculating a first deformation value based on the first distance and the second distance; calculating a second deformation value based on the first coordinate and the second coordinate; and determining whether the building formwork support system is abnormal based on the first deformation value and the second deformation value. Embodiments of the present invention can address the problems of low monitoring accuracy and poor timeliness of existing monitoring methods for building formwork support systems.

[0005] The above existing technologies still have the following problems: 1. The existing technologies mainly realize remote real-time monitoring by measuring displacement and inclination through measuring ropes and angle sensors. The functions are relatively simple. The technical solutions do not cover multiple links such as support model construction, multi-parameter data acquisition, analysis and early warning based on multiple algorithms, and parameter correlation feedback. The analysis of concrete formwork deformation is not comprehensive enough.

[0006] 2. The existing technology mainly determines whether the deformation of the formwork support is abnormal by changes in distance and coordinates. It does not elaborate on how to calculate the support deformation based on multiple factors, nor does it conduct in-depth research on the correlation between vibration operation parameters and support deformation. The comprehensive utilization and analysis of monitoring data are limited, and the dimension and depth of the overall monitoring and analysis are relatively shallow. Summary of the Invention

[0007] In view of this, in order to solve the problems raised in the above background technology, a concrete formwork support deformation monitoring system and method are proposed.

[0008] The purpose of the present invention can be achieved through the following technical solutions: The first aspect of the present invention provides a concrete formwork support deformation monitoring system, including: a support model construction module, which uses a three-dimensional scanner to scan the completed formwork, construct a three-dimensional model of the formwork support, and mark the key points.

[0009] The support data acquisition module collects the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure corresponding to each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters. Among them, the vibration operation parameters include the vibration force and the depth of the vibrating rod.

[0010] The vibration deformation warning module constructs the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters based on multi-dimensional feature data, analyzes the support deformation of the template under each set of vibration operation parameters and issues corresponding warnings.

[0011] The vibration parameter association feedback module uses statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirms the trend of the influence of each vibration operation parameter on the support deformation and provides corresponding feedback.

[0012] A second aspect of the present invention provides a method for monitoring the deformation of a concrete formwork support, comprising: S1, using a three-dimensional scanner to scan a completed formwork, constructing a three-dimensional model of the formwork support, and marking key points.

[0013] S2. Collect the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure of each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters, where the vibration operation parameters include the vibration force and the depth of the vibrating rod.

[0014] S3. Based on the multi-dimensional feature data, a time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed, and the support deformation of the template under each set of vibration operation parameters is analyzed and a corresponding warning is issued.

[0015] S4. Use statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirm the trend of the influence of each vibration operation parameter on the support deformation and provide corresponding feedback.

[0016] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: (1) The present invention uses a three-dimensional scanner to scan the completed formwork, constructs an accurate three-dimensional model of the formwork support and marks key points, and comprehensively collects the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure data of each key point at each monitoring time point under each set of vibration operation parameters, thereby achieving all-round and accurate monitoring of the formwork support structure and providing a sufficient and accurate data basis for subsequent analysis.

[0017] (2) The present invention constructs a time-support deformation curve corresponding to each key point, calculates the offset, inclination and pressure anomaly, and uses a linear regression algorithm to obtain the support deformation, thereby accurately analyzing the support deformation of the template and improving the accuracy and persuasiveness of the support deformation confirmation.

[0018] (3) The present invention calculates the correlation coefficient between the vibration operation parameters and the support deformation by using statistical methods, clarifies the influence trend of each vibration operation parameter on the support deformation, provides a strong basis for parameter optimization during the construction process, and helps the construction party to discover potential safety hazards in advance, thereby reducing construction safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0020] Figure 1 It is a schematic diagram of the system structure connection of the present invention.

[0021] Figure 2 Schematic diagram of the method steps of the present invention.

[0022] Figure 3 This is the early warning flow chart corresponding to the deformation of the template support of the present invention. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 are within the scope of protection of the present invention.

[0024] See also Figure 1 As shown, the first aspect of the present invention provides a concrete formwork support deformation monitoring system, including: a support model construction module, a support data acquisition module, a vibration deformation early warning module and a vibration parameter association feedback module.

[0025] It should be noted that the present invention also includes a database for storing completed formwork construction drawings, a historical formwork support three-dimensional model library, the support deformation corresponding to the unit support deformation degree, the initial position of each key point of the formwork support structure, and the allowable support deformation of the formwork under each set of vibration operation parameters.

[0026] The support model construction module is connected to the support data acquisition module, the support data acquisition module is connected to the vibration deformation warning module, the vibration deformation warning module is connected to the vibration parameter association feedback module, and both the support model construction module and the vibration deformation warning module are connected to the database.

[0027] The support model construction module uses a three-dimensional scanner to scan the completed template, construct a template support three-dimensional model, and mark key points.

[0028] In a specific embodiment of the present invention, the specific method of marking key points is: extracting the completed template construction drawings from the database, marking the key structural points and special construction points marked in the template construction drawings as key points, and at the same time matching and comparing the template support three-dimensional model with the template support three-dimensional models in the historical template support three-dimensional model library stored in the database, and extracting the position coordinates of the key points historically marked in the template support three-dimensional model with the greatest model structure similarity, and synchronously marking the position coordinates of the key points historically marked in the completed template support three-dimensional model, thereby obtaining the key points in the completed template support three-dimensional model.

[0029] In a specific embodiment of the present invention, the key points of the structure include the beam-column nodes marked in the template construction drawings, and the special points of the structure include the support connection points marked in the template construction drawings.

[0030] It should be noted that by simultaneously importing the completed formwork support 3D model and each formwork support 3D model in the historical formwork support 3D model library into professional 3D modeling and analysis software, the similarity between the model structures can be automatically identified.

[0031] The support data acquisition module collects the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure corresponding to each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters, wherein the vibration operation parameters include the vibration force and the depth of the vibrating rod.

[0032] It should be noted that the horizontal displacement is collected in the following manner: a fixed reference point is set in the horizontal direction with respect to the key point of the formwork support, the horizontal distance between the key point and the reference point is measured with a laser rangefinder, and the measured horizontal distance is used as the horizontal displacement. The vertical deformation is collected in the following manner: a horizontal line of sight is established using a level, the level rod reading pre-set at the key point of the formwork support is read, and the elevation change of the key point, i.e., the vertical deformation, is obtained by taking the difference in readings at different monitoring time points. The three-dimensional coordinate values ​​are obtained directly from the three-dimensional model of the formwork support. The pressure is collected by pressure sensors installed at each key point.

[0033] The embodiment of the present invention uses a three-dimensional scanner to scan the constructed formwork, constructs an accurate three-dimensional model of the formwork support and marks key points, and comprehensively collects the horizontal displacement, vertical deformation, three-dimensional coordinate values ​​and pressure data of each key point at each monitoring time point under each set of vibration operation parameters, thereby realizing all-round and precise monitoring of the formwork support structure, and providing a sufficient and accurate data basis for subsequent analysis.

[0034] The vibration deformation warning module constructs a time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters based on multi-dimensional feature data, analyzes the support deformation of the template under each set of vibration operation parameters and issues corresponding warnings.

[0035] In a specific embodiment of the present invention, the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed based on multidimensional feature data. The specific construction process is: based on the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure corresponding to each key point of the template support structure under each set of vibration operation parameters at each monitoring time point, the support deformation degree corresponding to each key point in the template under each set of vibration operation parameters at each monitoring time point is calculated, and it is multiplied with the support deformation corresponding to the unit support deformation degree stored in the database to obtain the support deformation corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters.

[0036] In a specific embodiment of the present invention, the specific process of calculating the support deformation corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is as follows: based on the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure corresponding to each key point of the template support structure at each monitoring time point under each set of vibration operation parameters, the corresponding offset degree of each key point in the template at each monitoring time point under each set of vibration operation parameters is calculated respectively. , inclination and pressure abnormality ,in, Indicates the number of each group of vibration operations, , Indicates the number of the key point, , Indicates the number of the monitoring time point, .

[0037] In a specific embodiment of the present invention, the specific method for calculating the offset corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is as follows: the horizontal displacement and vertical deformation corresponding to each key point of the template support structure at each monitoring time point under each set of vibration operation parameters are recorded as and .

[0038] Obtain the offset corresponding to each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters , .

[0039] The maximum displacement value allowed by the completed formwork support structure is extracted from the database and recorded as .

[0040] Calculate the corresponding deviation of each key point in the template at each monitoring time point under each set of vibration operation parameters , .

[0041] In a specific embodiment of the present invention, the specific process of calculating the inclination corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is as follows: the three-dimensional coordinate values ​​corresponding to each key point of the template support structure at each monitoring time point under each set of vibration operation parameters are recorded as .

[0042] Extract the initial positions of each key point of the template support structure from the database and substitute them into the template support three-dimensional model to obtain the initial three-dimensional coordinate values ​​of each key point of the template support structure .

[0043] Use inverse trigonometric functions to calculate the corresponding inclination angles of each key point in the template at each monitoring time point under each set of vibration operation parameters , .

[0044] It should be noted that the calculation formula of the tilt angle is based on the vector dot product and the spatial geometric relationship: in the spatial rectangular coordinate system, the vector dot product formula is , the transformation can be obtained ,in is the angle between the two vectors, assuming there are key points in the template And at a certain monitoring time point Key Points , the coordinates are and , construct from point Pointing Point (at time t), let this vector be , formula molecule Can be viewed as a vector The component in the z-axis direction, the denominator is a vector Length of mold , substitute it into The expression here takes the angle relationship between the vector and the z-axis direction, and then uses the inverse cosine function , we get the tilt angle The calculation formula is used to reflect the inclination of key points in space.

[0045] Calculate the inclination of each key point in the template at each monitoring time point under each set of vibration operation parameters , ,in, Indicates the number of monitoring time points.

[0046] It should be noted that the specific derivation process of the inclination is as follows: first, the inclination angle at each monitoring time point is calculated. Calculate the average value, where n represents the number of monitoring time points. This average value can reflect the average level of the tilt angle of the key point during the entire monitoring period. The denominator in the formula is , in fact, , the tilt angle at the current time point As a molecule, Divide by Get the inclination The advantage of this design is that when the tilt angle at a certain point in time The larger the average tilt angle relative to all time points, the greater the tilt The closer it is to 1, the more significant the tilt is at that time point; on the contrary, when When it is close to the average value, the slope Small, indicating that the degree of tilt is relatively not prominent. Through this calculation method, a tilt calculation formula was established that can comprehensively reflect the influence of the tilt angle at each monitoring time point.

[0047] It should be noted that the specific method of calculating the pressure anomaly corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is: subtract the pressure corresponding to each key point of the template support structure at each monitoring time point under each set of vibration operation parameters from the preset template support pressure, and compare the difference with the set reference pressure difference. If the pressure difference corresponding to a key point of the template support structure at a certain monitoring time point under a certain set of vibration operation parameters is greater than the set reference pressure difference, then the pressure anomaly corresponding to the key point of the template support structure at the monitoring time point under the set of vibration operation parameters is recorded as Otherwise, the corresponding abnormal degree of compression of the key point of the template support structure at the monitoring time point under the set of vibration operation parameters is recorded as , thus obtaining the corresponding pressure anomaly degree of each key point in the template at each monitoring time point under each set of vibration operation parameters ,in, The value of or , .

[0048] In a specific embodiment of the present invention, The setting value of is 1. The setting value is 0. The difference between the preset formwork support pressure and the set reference pressure is comprehensively determined by the design bearing capacity of the formwork support structure and the concrete pouring process requirements, and can be directly extracted from the design drawings of the formwork support structure.

[0049] Using linear regression algorithm, the deviation , inclination and pressure abnormality As independent variables, support deformation As the dependent variable, a linear regression model is constructed to calculate the support deformation of each key point in the template at each monitoring time point under each set of vibration operation parameters. The linear regression model is in the form of ,in, 、 and is the regression coefficient, obtained by fitting the experimental data, is a constant term.

[0050] It should be noted that, in a specific embodiment of the present invention, the specific experimental data shown in Table 1 can be used to obtain 、 、 and The specific value of .

[0051] Table 1 Experimental data

[0052]

[0053] Dependent variable ,matrix , according to the least squares method, we get =1.73, =-1.25, =0.045, =0.485.

[0054] It should be noted that the benefits of using the linear regression algorithm are as follows: it can clearly quantify the relationship between offset, inclination, compression anomaly and support deformation. Based on the established linear regression model, the support deformation of each key point in the template at different monitoring time points can be predicted according to the current or future offset, inclination and compression anomaly data.

[0055] With the monitoring time point as the horizontal coordinate and the support deformation as the vertical coordinate, the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed.

[0056] In a specific embodiment of the present invention, the specific process of analyzing the support deformation of the template under each set of vibration operation parameters and corresponding warning is as follows: the monitoring time points in the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters are respectively recorded as , and the corresponding support deformations are The time interval between adjacent time points is .

[0057] By using the trapezoidal integration method, the definite integral calculation of the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is performed to obtain the integral value of each key point in the template under each set of vibration operation parameters. , .

[0058] In a specific embodiment of the present invention, it is assumed that we have three different sets of data to illustrate the trapezoidal integration method. It is assumed that each set of data is the time-support deformation data of a key point of the template under different vibration operation parameters, as shown in Table 2, Table 3 and Table 4 respectively:

[0059] Table 2 The first set of data

[0060]

[0061] Time interval Minutes, calculated as follows: (mm minute).

[0062] Table 3 The second set of data

[0063]

[0064] Time interval Minutes, calculated as follows: (mm minute).

[0065] Table 4 The third set of data

[0066]

[0067] Time interval Minutes, calculated as follows: (mm minute).

[0068] It should be noted that there are many benefits to using the trapezoidal integration method to calculate the deformation of the formwork support, including: 1) Higher calculation accuracy: Compared with the simple rectangular method, the trapezoidal method approximates the curve on each small interval as a straight line segment, which can better fit the actual time-support deformation curve and take into account the changing trend of the curve, so the calculation result is closer to the true integral value; 2) Intuitive physical meaning: From a physical point of view, the area approximation calculated by the trapezoidal method directly corresponds to the accumulation of deformation over time, which is consistent with the focus of actual engineering on the change of formwork support deformation over time, making it easier for engineering personnel to understand and interpret the calculation results, thereby better evaluating the stability and safety of the formwork.

[0069] The integral values ​​of each key point in the template under each set of vibration operation parameters are averaged to obtain the support deformation of the template under each set of vibration operation parameters. .

[0070] See also Figure 3 As shown, the support deformation of the template under each set of vibration operation parameters is compared with the allowable support deformation of the template under each set of vibration operation parameters stored in the database. If the support deformation of the template under a certain set of vibration operation parameters is less than or equal to the allowable support deformation, it indicates that there is no safety hazard for the template under this set of vibration operation parameters. Otherwise, it indicates that there is a safety hazard for the template under this set of vibration operation parameters, and an immediate warning is required.

[0071] The embodiment of the present invention constructs a time-support deformation curve corresponding to each key point, calculates the offset, inclination and compression anomaly, and uses a linear regression algorithm to obtain the support deformation, thereby accurately analyzing the support deformation of the template, thereby improving the accuracy and persuasiveness of the support deformation confirmation.

[0072] The vibration parameter association feedback module uses a statistical method to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirms the trend of the influence of each vibration operation parameter on the support deformation and provides corresponding feedback.

[0073] In a specific embodiment of the present invention, the specific process of using statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation is as follows: the vibration force and the depth of the vibrating rod in each group of vibration operations are screened from each group of vibration operation parameters, and are recorded as and .

[0074] Calculate the average vibration force , , calculate the average depth of the vibrator , , calculate the mean support deformation , ,in, Indicates the total number of vibration operations.

[0075] Calculate the Pearson correlation coefficient between vibration force and support deformation , .

[0076] In a specific embodiment of the present invention, it is assumed that we study the relationship between the vibration force and the deformation of the formwork support and collect the following 10 sets of data in Table 5:

[0077] Table 5 Relationship between vibration force and formwork support deformation

[0078]

[0079] Substitute the Pearson correlation coefficient between vibration force and support deformation In, get This indicates that there is a strong positive linear relationship between vibration intensity and support deformation. As the vibration intensity increases, the support deformation increases significantly, and the two increase almost linearly. This means that during the construction process, a small change in vibration intensity may lead to a large change in support deformation.

[0080] Calculate the Pearson correlation coefficient between the depth of the vibrator and the support deformation , .

[0081] In a specific embodiment of the present invention, the specific process of confirming the trend of the influence of each vibration operation parameter on the support deformation and providing corresponding feedback is as follows: , it shows that the vibration force and support deformation have a strong positive linear correlation trend.

[0082] when , indicating that the vibration intensity and support deformation have a moderate positive correlation trend.

[0083] when When , it shows that the vibration intensity and support deformation have a weak positive correlation trend.

[0084] when , it shows that the vibration force and support deformation have a strong negative linear correlation trend.

[0085] when , indicating that the vibration intensity and support deformation have a moderate negative correlation trend.

[0086] when , it shows that the vibration intensity and support deformation have a weak negative correlation trend.

[0087] Similarly, the trend of the influence of the depth of the vibrating rod on the support deformation is obtained.

[0088] It should be noted that in most conventional concrete vibration operation scenarios, the vibration force and the support deformation are often positively correlated. As the vibration force increases, the internal particles of the concrete are subjected to greater force, the fluidity is enhanced, and the lateral pressure on the formwork increases, resulting in an increase in the formwork support deformation. At the same time, the depth of the vibrating rod is often positively correlated with the support deformation. When the insertion depth of the vibrating rod increases, the vibration effect penetrates deeper into the concrete, so that the bottom layer and the concrete farther away are affected by the vibration, resulting in an increase in the pressure on the lower part and the surrounding area of ​​the formwork, thereby increasing the support deformation.

[0089] The embodiment of the present invention uses a statistical method to calculate the correlation coefficient between the vibration operation parameters and the support deformation, clarifies the influence trend of each vibration operation parameter on the support deformation, provides a strong basis for parameter optimization during the construction process, and helps the construction party to discover potential safety hazards in advance, thereby reducing construction safety risks.

[0090] Reference Figure 2 As shown, the second aspect of the present invention provides a method for monitoring the deformation of a concrete formwork support, comprising: S1, using a three-dimensional scanner to scan the completed formwork, constructing a three-dimensional model of the formwork support, and marking key points.

[0091] S2. Collect the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure of each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters, where the vibration operation parameters include the vibration force and the depth of the vibrating rod.

[0092] S3. Based on the multi-dimensional feature data, a time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed, and the support deformation of the template under each set of vibration operation parameters is analyzed and a corresponding warning is issued.

[0093] S4. Use statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirm the trend of the influence of each vibration operation parameter on the support deformation and provide corresponding feedback.

[0094] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they should all fall within the scope of protection of the present invention.

Claims

1. A concrete formwork support deformation monitoring system, characterized in that: include: Support model construction module, use a 3D scanner to scan the completed template, build a template support 3D model, and mark the key points; The support data acquisition module collects the horizontal displacement, vertical deformation, three-dimensional coordinates and pressure of each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters. The vibration operation parameters include the vibration force and the depth of the vibrating rod. The vibration deformation warning module constructs the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters based on multi-dimensional feature data, analyzes the support deformation of the template under each set of vibration operation parameters, and issues corresponding warnings; The vibration parameter correlation feedback module uses statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirms the trend of each vibration operation parameter's influence on the support deformation and provides corresponding feedback; The time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed based on the multi-dimensional feature data. The specific construction process is as follows: Based on the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure of each key point of the template support structure at each monitoring time point under each set of vibration operation parameters, the support deformation degree of each key point in the template at each monitoring time point under each set of vibration operation parameters is calculated. , and multiply it by the support deformation corresponding to the unit support deformation stored in the database to obtain the support deformation corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters; With the monitoring time point as the horizontal coordinate and the support deformation as the vertical coordinate, the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is constructed; calculate The specific process is: Based on the horizontal displacement, vertical deformation, three-dimensional coordinate value and pressure of each key point of the template support structure at each monitoring time point under each set of vibration operation parameters, the corresponding offset of each key point in the template at each monitoring time point under each set of vibration operation parameters is calculated respectively. , inclination and pressure abnormality ,in, Indicates the number of each group of vibration operations, , Indicates the number of the key point, , Indicates the number of the monitoring time point, ; Using linear regression algorithm, the deviation , inclination and pressure abnormality As independent variables, support deformation As the dependent variable, a linear regression model is constructed to calculate the support deformation of each key point in the template at each monitoring time point under each set of vibration operation parameters. The linear regression model is in the form of ,in, 、 and is the regression coefficient, obtained by fitting the experimental data, is a constant term.

2. A concrete formwork support deformation monitoring system according to claim 1, characterized in that: The specific method of marking the key points is: extracting the completed template construction drawings from the database, marking the key structural points and special construction points marked in the template construction drawings as key points, and at the same time matching and comparing the template support three-dimensional model with the template support three-dimensional models in the historical template support three-dimensional model library stored in the database, and extracting the position coordinates of the key points historically marked in the template support three-dimensional model with the greatest model structure similarity, and synchronously marking the position coordinates of the key points historically marked in the completed template support three-dimensional model, thereby obtaining the key points in the completed template support three-dimensional model.

3. The concrete formwork support deformation monitoring system according to claim 1, characterized in that: The specific method for calculating the deviation corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is: The horizontal displacement and vertical deformation of each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters are recorded as and ; Obtain the offset corresponding to each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters , ; The maximum displacement value allowed by the completed formwork support structure is extracted from the database and recorded as ; Calculate the corresponding deviation of each key point in the template at each monitoring time point under each set of vibration operation parameters , .

4. The concrete formwork support deformation monitoring system according to claim 1, characterized in that: The specific process of calculating the inclination corresponding to each key point in the template at each monitoring time point under each set of vibration operation parameters is as follows: The three-dimensional coordinate values ​​corresponding to each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters are recorded as ; Extract the initial positions of each key point of the template support structure from the database and substitute them into the template support three-dimensional model to obtain the initial three-dimensional coordinate values ​​of each key point of the template support structure ; Use inverse trigonometric functions to calculate the corresponding inclination angles of each key point in the template at each monitoring time point under each set of vibration operation parameters , ; Calculate the inclination of each key point in the template at each monitoring time point under each set of vibration operation parameters , ,in, Indicates the number of monitoring time points.

5. A concrete formwork support deformation monitoring system according to claim 4, characterized in that: The specific process of analyzing the support deformation of the template under each set of vibration operation parameters and issuing corresponding warnings is as follows: The monitoring time points in the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters are recorded as , and the corresponding support deformations are The time interval between adjacent time points is ; By using the trapezoidal integration method, the definite integral calculation of the time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters is performed to obtain the integral value of each key point in the template under each set of vibration operation parameters. , ; The integral values ​​of each key point in the template under each set of vibration operation parameters are averaged to obtain the support deformation of the template under each set of vibration operation parameters. ; The support deformation of the template under each set of vibration operation parameters is compared with the allowable support deformation of the template under each set of vibration operation parameters stored in the database. If the support deformation of the template under a certain set of vibration operation parameters is less than or equal to the allowable support deformation, it indicates that there is no safety hazard for the template under this set of vibration operation parameters. Otherwise, it indicates that there is a safety hazard for the template under this set of vibration operation parameters and an immediate warning is required.

6. A concrete formwork support deformation monitoring system according to claim 5, characterized in that: The specific process of using the statistical method to calculate the correlation coefficient between each vibration operation parameter and the support deformation is as follows: The vibration intensity and the depth of the vibrating rod in each group of vibration operations are selected from the vibration operation parameters of each group and recorded as and ; Calculate the average vibration force , , calculate the average depth of the vibrator , , calculate the mean support deformation , ,in, Indicates the total number of vibration operations; Calculate the Pearson correlation coefficient between vibration force and support deformation , ; Calculate the Pearson correlation coefficient between the depth of the vibrator and the support deformation , .

7. The concrete formwork support deformation monitoring system according to claim 6, characterized in that: The specific process of confirming the trend of the influence of each vibration operation parameter on the support deformation and providing corresponding feedback is as follows: when When , it shows that the vibration force and support deformation have a strong positive linear correlation trend; when When , it shows that the vibration intensity and support deformation have a moderate positive correlation trend; when When , it shows that the vibration intensity and support deformation have a weak positive correlation trend; when When , it shows that the vibration force and support deformation have a strong negative linear correlation trend; when When , it shows that the vibration intensity and support deformation have a moderate negative correlation trend; when When , it shows that the vibration intensity and support deformation have a weak negative correlation trend; Similarly, the trend of the influence of the depth of the vibrating rod on the support deformation is obtained.

8. A method for monitoring deformation of a concrete formwork support, performed by the concrete formwork support deformation monitoring system according to any one of claims 1 to 7, characterized in that: include: S1. Use a 3D scanner to scan the completed template, build a 3D model of the template support, and mark the key points; S2. Collect the horizontal displacement, vertical deformation, three-dimensional coordinate values, and pressure of each key point of the formwork support structure at each monitoring time point under each set of vibration operation parameters, where the vibration operation parameters include the vibration force and the depth of the vibrating rod; S3. Constructing a time-support deformation curve corresponding to each key point in the template under each set of vibration operation parameters based on the multi-dimensional feature data, analyzing the support deformation of the template under each set of vibration operation parameters and issuing corresponding warnings; S4. Use statistical methods to calculate the correlation coefficient between each vibration operation parameter and the support deformation, confirm the trend of the influence of each vibration operation parameter on the support deformation and provide corresponding feedback.

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