System and method for evaluating the effect of cross bracing based on skew column offset

Abstract

The present application relates to the technical field of structure measurement, and in particular to a system and method for evaluating the effect of a cross brace based on the offset of an inclined column, comprising the following steps: S1, installing laser displacement sensors at the top and bottom of the inclined column, collecting initial displacement reference and recording environmental data, and synchronously obtaining displacement and environmental data; S2, based on the environmental data, compensating the displacement data to obtain effective displacement data, and obtaining an offset vector through spatial solution; S3, calculating the modulus of the offset vector to obtain the comprehensive offset, comparing the comprehensive offset with the designed theoretical displacement of the cross brace, calculating the efficiency index of the cross brace, and outputting the result. The present application combines laser displacement sensors and environmental sensing units to eliminate environmental interference, calculate the comprehensive offset of the inclined column in real time, and compare the comprehensive offset with the designed theoretical displacement of the cross brace to quantify the efficiency index of the cross brace, thereby providing a scientific decision basis for the evaluation of structural stability, optimized design, and operation and maintenance management.

Description

Technical Field

[0001] This invention relates to the field of structural measurement technology, and in particular to a system and method for evaluating the effect of cross bracing based on the offset of inclined columns. Background Technology

[0002] In modern engineering construction, inclined columns, as important structural support units, bear complex loads and are affected by external environmental factors. In order to ensure the stability and safety of the structure, it is usually necessary to monitor and evaluate the deformation of the inclined columns in real time. The offset of the inclined column is a key parameter for evaluating its stability and cross bracing performance. Traditional methods usually rely on manual detection or simple displacement measurement tools. These methods are inefficient and inaccurate, and cannot reflect the actual stress state of the inclined column in real time, making it difficult to provide an effective basis for structural optimization and operation and maintenance management.

[0003] Existing inclined column monitoring technologies mostly rely on static displacement sensors and limited environmental data, which cannot eliminate the interference of environmental factors (such as temperature, humidity and air pressure) in real time and accurately. In addition, traditional methods cannot fully consider the multi-dimensional spatial characteristics of inclined column deformation, resulting in an incomplete assessment of inclined column offset, which in turn affects the accurate assessment of cross brace performance. Therefore, existing technologies have obvious shortcomings in dynamic monitoring, environmental disturbance compensation and accurate assessment of cross brace support capacity. Summary of the Invention

[0004] This invention provides a system and method for evaluating the effect of cross bracing based on the offset of inclined columns. By combining a laser displacement sensor and an environmental sensing unit, the system can collect the displacement data of the inclined columns in real time. Through environmental disturbance compensation technology, the influence of factors such as temperature, humidity, and air pressure is eliminated, and the true spatial offset vector of the inclined columns is accurately calculated. Furthermore, by comparing the offset with the theoretical resistance displacement of the cross bracing design, the system can quantitatively evaluate the supporting effect of the cross bracing on the stability of the inclined columns, providing a scientific and accurate decision-making basis for structural optimization and operation and maintenance management.

[0005] The method for evaluating the effect of cross bracing based on the offset of inclined columns includes the following steps:

[0006] S1. Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is collected synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. In the real-time monitoring process, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are collected synchronously, and the real-time environmental parameter data output by the environmental sensing unit is collected synchronously.

[0007] S2, based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation.

[0008] S3, calculate the modulus of the real space offset vector to obtain the comprehensive offset of the inclined column, which characterizes the degree of bending deformation of the inclined column. Retrieve the design theoretical resistance displacement of the target cross brace. Compare and analyze the comprehensive offset of the inclined column with the design theoretical resistance displacement to calculate the cross brace performance index, which is used to quantitatively evaluate the actual support effect of the cross brace on the stability of the inclined column. Generate and output the evaluation result based on the cross brace performance index.

[0009] Optionally, S1 includes:

[0010] S11. Install laser displacement sensors (denoted as Sensor_T and Sensor_B) at the top and bottom of the inclined column, respectively, with their measurement direction perpendicular to the structural reference plane. After installation, with the structure in a static and stable state (i.e., the initial working condition without construction disturbance or load fluctuation), simultaneously activate the two laser displacement sensors and collect their outputs, recording them as the initial displacement reference at the top of the inclined column. Initial displacement reference at the bottom of the inclined column ;

[0011] S12, Deploy environmental sensing units (temperature and humidity sensors, atmospheric pressure sensors) to record initial environmental parameter data for the area where the inclined column is located. ;

[0012] S13, after the inclined column enters the operation monitoring phase, at a set time interval. Simultaneous acquisition of data from laser displacement sensors at the top and bottom yields the first real-time displacement data at the current moment. Second real-time displacement data At the same time, the environmental sensing unit collects real-time environmental parameter data. .

[0013] Optionally, S2 includes:

[0014] S21. Based on the collected initial environmental parameter data and the real-time monitored environmental parameter data, environmental disturbance compensation is performed on the first real-time displacement data and the second real-time displacement data at both ends of the inclined column to eliminate measurement errors caused by temperature, humidity and air pressure, and extract effective displacement data that truly reflects the structural deformation.

[0015] S22. After completing environmental disturbance compensation, the corrected effective displacement data is used in conjunction with the installation structure characteristics of the inclined column to construct the spatial geometric relationship under the current inclined column attitude. The real spatial offset vector of the inclined column relative to the initial displacement reference is obtained by calculation, which is used to describe the current overall offset state of the inclined column.

[0016] Optionally, S21 includes:

[0017] S211. Based on historical calibration tests, a displacement error model for inclined column displacement measurement under different environmental conditions is constructed. Taking into account temperature, humidity and air pressure, a linear drift response model is used to describe the relationship between sensor error and environmental changes, and the displacement error at the top and bottom caused by environmental disturbances is calculated.

[0018] S212, based on the calculated displacement errors at the top and bottom ends caused by environmental disturbances, calculates the effective displacement data that reflects the true response of the structure, including the first effective displacement data and the second effective displacement data after compensation.

[0019] Optionally, S22 includes:

[0020] S221. Based on the obtained effective displacement data after compensation, combined with the initial installation coordinates of the inclined column and the sensor direction information, the current three-dimensional coordinates of the top and bottom of the inclined column are derived respectively.

[0021] S222, based on the derived current three-dimensional coordinates of the top and bottom of the inclined column, calculate the current structural attitude vector of the inclined column (from the bottom to the top), and construct the reference attitude vector during the installation of the structure according to the initial coordinates of the inclined column;

[0022] S223, by calculating the difference vector between the current structural attitude vector of the inclined column and the reference attitude vector when the inclined column was initially constructed and installed, the true spatial offset vector is obtained.

[0023] Optionally, S3 includes:

[0024] S31, calculate the modulus of the real spatial offset vector obtained by analysis to obtain the comprehensive offset of the inclined column, which characterizes the degree of overall bending deformation of the inclined column;

[0025] S32, retrieve the design theoretical resistance displacement of the target cross brace under the current structural configuration, and compare it with the currently calculated comprehensive offset of the inclined column to identify the gap of the cross brace in the deformation of the inclined column, which serves as a preliminary basis for judging whether the cross brace's support capacity is effective.

[0026] S33, based on the comparison between the comprehensive offset of the inclined column and the theoretical resistance displacement, calculates the cross bracing performance index, which reflects the actual performance level of the cross bracing in supporting the stability of the inclined column. Finally, it forms the structural safety assessment result and serves as the basis for decision-making on structural layout optimization, operational status early warning, and operation and maintenance scheduling.

[0027] Optionally, S31 includes:

[0028] S311 defines the real space offset vector, which describes the deformation of the inclined column in three-dimensional space relative to its initial installation posture;

[0029] S312 calculates the magnitude of the offset vector in real space and outputs the overall offset of the inclined column to quantify the degree of bending deformation of the inclined column.

[0030] Optionally, S32 includes:

[0031] S321, retrieve the target cross brace's theoretical resistance to displacement under the current structural configuration. ;

[0032] S322, the calculated overall offset of the inclined column is combined with the theoretical resistance displacement of the cross brace design. By comparing the values, the support margin of the cross brace is calculated. If the support margin of the cross brace is negative, it means that the support capacity of the cross brace is insufficient and there is a gap in the cross brace for the deformation of the inclined column.

[0033] Optionally, S33 includes:

[0034] S331, based on the comprehensive offset of the inclined column and the design theoretical resistance displacement, the performance index of the cross brace is calculated. This reflects the ability of the cross brace to support the deformation of the inclined column;

[0035] S332, based on the calculated cross brace performance index Generate the evaluation results of the support effect of the cross bracing, when When the theoretical support matches the actual support capacity, the structural support state is reasonable. or If this occurs, it indicates a risk of support deviation, and a warning is issued, suggesting reinforcement or optimization.

[0036] The cross bracing effect evaluation system based on inclined column offset is used to implement the above-mentioned cross bracing effect evaluation method based on inclined column offset, and includes the following modules:

[0037] Data acquisition module: Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is acquired synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. During real-time monitoring, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are acquired synchronously, and the real-time environmental parameter data output by the environmental sensing unit is acquired synchronously.

[0038] Environmental disturbance compensation module: Based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation.

[0039] The cross brace performance evaluation module calculates the modulus of the real spatial offset vector to obtain the overall offset of the inclined column, which characterizes the degree of bending deformation of the inclined column. It retrieves the design theoretical resistance displacement of the target cross brace, compares and analyzes the overall offset of the inclined column with the design theoretical resistance displacement, calculates the cross brace performance index for quantitatively evaluating the actual support effect of the cross brace on the stability of the inclined column, and generates and outputs the evaluation results based on the cross brace performance index.

[0040] The beneficial effects of this invention are:

[0041] This invention, through the combination of a laser displacement sensor and an environmental sensing unit, can monitor the displacement changes at both ends of an inclined column in real time and with high accuracy. It effectively eliminates the interference of environmental factors such as temperature, humidity, and air pressure on the measurement results, avoiding the neglect of the influence of environmental changes that could lead to large measurement errors. By using environmental disturbance compensation processing, it ensures the high accuracy and reliability of the data, providing more accurate basic data for the subsequent assessment of the inclined column's deformation. This high-precision measurement and data processing method significantly improves the accuracy of the inclined column's stability assessment and avoids misjudgments caused by environmental interference.

[0042] This invention, through spatial geometric calculation based on effective displacement data, can accurately calculate the true spatial offset vector of the inclined column, and further obtain the comprehensive offset of the inclined column. The comprehensive offset is a key indicator for measuring the degree of deformation of the inclined column, and can clearly reflect the overall bending or offset degree of the inclined column under actual working conditions. This quantitative deformation assessment method can intuitively understand the stress state and structural stability of the inclined column, laying a solid data foundation for further evaluation of the cross bracing performance, and greatly improving the reliability and scientific nature of structural stability analysis.

[0043] This invention, by comparing and analyzing the displacement resistance of the cross brace with the design theory, can calculate the performance index of the cross brace, quantify the supporting effect of the cross brace on the stability of the inclined column, and promptly identify the support gap when the cross brace performance is insufficient, providing a basis for structural reinforcement or optimization. This evaluation method not only improves the evaluation accuracy of the cross brace support effect, but also provides strong decision support for structural layout, operation and maintenance management, and real-time early warning. Through the output of the cross brace performance index, the system can accurately determine whether the cross brace can effectively support the deformation of the inclined column, ensuring the safety and stability of the structure during long-term use. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the evaluation method flow according to an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the system functional modules according to an embodiment of the present invention. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. For some well-known technologies, those skilled in the art may use other alternative methods to implement the invention; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0048] like Figure 1 As shown, the method for evaluating the effect of cross bracing based on the offset of inclined columns includes the following steps:

[0049] S1. Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is collected synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. In the real-time monitoring process, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are collected synchronously, and the real-time environmental parameter data output by the environmental sensing unit is collected synchronously.

[0050] S2, based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation.

[0051] S3 calculates the modulus of the real space offset vector to obtain the comprehensive offset of the inclined column, which characterizes the degree of bending deformation of the inclined column. It retrieves the design theoretical resistance displacement of the target cross brace, compares and analyzes the comprehensive offset of the inclined column with the design theoretical resistance displacement, calculates the cross brace performance index for quantitatively evaluating the actual support effect of the cross brace on the stability of the inclined column, and generates and outputs the evaluation results based on the cross brace performance index.

[0052] S1 includes:

[0053] S11. Install laser displacement sensors (denoted as Sensor_T and Sensor_B) at the top and bottom of the inclined column, respectively, with their measurement direction perpendicular to the structural reference plane. After installation, with the structure in a static and stable state (i.e., the initial working condition without construction disturbance or load fluctuation), simultaneously activate the two laser displacement sensors and collect their outputs, recording them as the initial displacement reference at the top of the inclined column. Initial displacement reference at the bottom of the inclined column ;

[0054] S12, Deploy environmental sensing units (temperature and humidity sensors, atmospheric pressure sensors) to record initial environmental parameter data for the area where the inclined column is located. , is represented as:

[0055] ;

[0056] in, The initial temperature. This is the initial relative humidity. This is the initial air pressure;

[0057] S13, after the inclined column enters the operation monitoring phase, at a set time interval. Simultaneous acquisition of data from laser displacement sensors at the top and bottom yields the first real-time displacement data at the current moment. Second real-time displacement data At the same time, the environmental sensing unit collects real-time environmental parameter data. .

[0058] S2 includes:

[0059] S21. Based on the collected initial environmental parameter data and the real-time monitored environmental parameter data, environmental disturbance compensation is performed on the first real-time displacement data and the second real-time displacement data at both ends of the inclined column to eliminate measurement errors caused by temperature, humidity and air pressure, and extract effective displacement data that truly reflects the structural deformation.

[0060] S22. After completing environmental disturbance compensation, the corrected effective displacement data is used in conjunction with the installation structure characteristics of the inclined column to construct the spatial geometric relationship under the current inclined column attitude. The real spatial offset vector of the inclined column relative to the initial displacement reference is obtained by calculation, which is used to describe the current overall offset state of the inclined column.

[0061] S21 includes:

[0062] S211, based on historical calibration tests, a displacement error model for inclined column displacement measurement under different environmental conditions is constructed. Considering temperature, humidity, and air pressure, a linear drift response model is used to describe the relationship between sensor error and environmental changes. The displacement errors at the top and bottom ends caused by environmental disturbances are calculated and expressed as follows:

[0063] ;

[0064] ;

[0065] in, , These represent the displacement errors at the top and bottom ends caused by environmental disturbances, respectively. This represents the real-time temperature change value. For real-time temperature, This represents the real-time humidity change value. For real-time humidity, This represents the real-time air pressure change value. For real-time air pressure, , , , , , These are the corresponding environmental drift coefficients;

[0066] S212, based on the calculated displacement errors at the top and bottom ends caused by environmental disturbances, calculates the effective displacement data reflecting the true response of the structure, including the compensated first and second effective displacement data, expressed as:

[0067] ;

[0068] ;

[0069] in, , These are the first and second effective displacement data after compensation, respectively. , These are the first real-time displacement data and the second real-time displacement data, respectively.

[0070] S22 includes:

[0071] S221, Based on the obtained compensated effective displacement data, combined with the initial installation coordinates of the inclined column and the sensor orientation information, the current three-dimensional coordinates of the top and bottom of the inclined column are derived respectively, as follows:

[0072] ;

[0073] ;

[0074] in, , These are the three-dimensional coordinates of the top and bottom of the inclined column at the current moment. , These are the initial installation reference coordinates for the top and bottom ends of the inclined column, respectively. , These are the corresponding sensor direction unit vectors;

[0075] S222, based on the derived current 3D coordinates of the top and bottom of the inclined column, calculate the current structural attitude vector of the inclined column (from the bottom to the top), and construct the reference attitude vector during structural installation based on the initial coordinates of the inclined column, expressed as:

[0076] ;

[0077] ;

[0078] in, This is the current structural attitude vector of the inclined column. Construct a reference attitude vector for the structure during installation, based on the initial coordinates of the inclined column;

[0079] S223, by calculating the difference vector between the current structural attitude vector of the inclined column and the reference attitude vector during the initial coordinate construction of the inclined column, the true spatial offset vector is obtained, expressed as:

[0080] ;

[0081] in, This is the offset vector in real space.

[0082] S3 includes:

[0083] S31, calculate the modulus of the real spatial offset vector obtained by analysis to obtain the comprehensive offset of the inclined column, which characterizes the degree of overall bending deformation of the inclined column;

[0084] S32, retrieve the design theoretical resistance displacement of the target cross brace under the current structural configuration, and compare it with the currently calculated comprehensive offset of the inclined column to identify the gap of the cross brace in the deformation of the inclined column, which serves as a preliminary basis for judging whether the cross brace's support capacity is effective.

[0085] S33, based on the comparison between the comprehensive offset of the inclined column and the theoretical resistance displacement, calculates the cross bracing performance index, which reflects the actual performance level of the cross bracing in supporting the stability of the inclined column. Finally, it forms the structural safety assessment result and serves as the basis for decision-making on structural layout optimization, operational status early warning, and operation and maintenance scheduling.

[0086] S31 includes:

[0087] S311 defines the real-space offset vector, describing the deformation of the inclined column in three-dimensional space relative to its initial installation posture, expressed as:

[0088] ;

[0089] in, , , These represent the offsets of the inclined column in the X, Y, and Z directions, respectively.

[0090] S312, by calculating the magnitude of the offset vector in real space, outputs the comprehensive offset of the inclined column to quantify the degree of overall bending deformation of the inclined column, expressed as:

[0091] ;

[0092] in, This represents the overall offset of the inclined column.

[0093] S32 includes:

[0094] S321, retrieve the target cross brace's theoretical resistance to displacement under the current structural configuration. , is represented as:

[0095] ;

[0096] in, The load on the cross brace. The length of the horizontal brace. is the stiffness coefficient of the cross brace;

[0097] S322, the calculated overall offset of the inclined column is combined with the theoretical resistance displacement of the cross brace design. By comparing and calculating the support margin of the cross brace, if the support margin of the cross brace is negative, it indicates that the support capacity of the cross brace is insufficient, and there is a gap in the cross brace for the deformation of the inclined column, which is expressed as:

[0098] ;

[0099] in, This refers to the lateral bracing support margin.

[0100] S33 includes:

[0101] S331, based on the comprehensive offset of the inclined column and the design theoretical resistance displacement, the performance index of the cross brace is calculated. This reflects the ability of the cross brace to support the deformation of the inclined column, and is expressed as:

[0102] ;

[0103] S332, based on the calculated cross brace performance index Generate the evaluation results of the support effect of the cross bracing, when When the theoretical support matches the actual support capacity, the structural support state is reasonable. or If this occurs, it indicates a risk of support deviation, and a warning is issued, suggesting reinforcement or optimization.

[0104] like Figure 2 As shown, the cross bracing effect evaluation system based on inclined column offset is used to implement the above-mentioned cross bracing effect evaluation method based on inclined column offset, and includes the following modules:

[0105] Data acquisition module: Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is acquired synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. During real-time monitoring, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are acquired synchronously, and the real-time environmental parameter data output by the environmental sensing unit is acquired synchronously.

[0106] Environmental disturbance compensation module: Based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation.

[0107] The cross brace performance evaluation module calculates the modulus of the real space offset vector to obtain the comprehensive offset of the inclined column, which characterizes the overall bending deformation of the inclined column. It retrieves the design theoretical resistance displacement of the target cross brace, compares and analyzes the comprehensive offset of the inclined column with the design theoretical resistance displacement, calculates the cross brace performance index for quantitatively evaluating the actual support effect of the cross brace on the stability of the inclined column, and generates and outputs the evaluation results based on the cross brace performance index.

[0108] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0109] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for evaluating the effect of cross bracing based on the offset of inclined columns, characterized in that, Includes the following steps: S1. Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is collected synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. In the real-time monitoring process, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are collected synchronously, and the real-time environmental parameter data output by the environmental sensing unit is collected synchronously. S2, based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation. S3, calculate the modulus of the real space offset vector to obtain the comprehensive offset of the inclined column, which characterizes the degree of bending deformation of the inclined column. Retrieve the design theoretical resistance displacement of the target cross brace. Compare and analyze the comprehensive offset of the inclined column with the design theoretical resistance displacement to calculate the cross brace performance index for quantitatively evaluating the actual support effect of the cross brace on the stability of the inclined column. Generate and output the evaluation result based on the cross brace performance index. S2 includes: S21. Based on the collected initial environmental parameter data and the real-time monitored environmental parameter data, environmental disturbance compensation is performed on the first real-time displacement data and the second real-time displacement data at both ends of the inclined column to eliminate measurement errors caused by temperature, humidity and air pressure, and extract effective displacement data that truly reflects the structural deformation. S22. After completing environmental disturbance compensation, the corrected effective displacement data is used in conjunction with the installation structure characteristics of the inclined column to construct the spatial geometric relationship under the current inclined column attitude. The real spatial offset vector of the inclined column relative to the initial displacement reference is obtained by calculation, which is used to describe the current overall offset state of the inclined column. S22 includes: S221. Based on the obtained effective displacement data after compensation, combined with the initial installation coordinates of the inclined column and the sensor direction information, the current three-dimensional coordinates of the top and bottom of the inclined column are derived respectively. S222, based on the derived current three-dimensional coordinates of the top and bottom of the inclined column, calculate the current structural attitude vector of the inclined column, and construct the reference attitude vector during structural installation based on the initial coordinates of the inclined column; S223, by calculating the difference vector between the current structural attitude vector of the inclined column and the reference attitude vector when the inclined column was initially constructed and installed, the real space offset vector is obtained.

2. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 1, characterized in that, S1 includes: S11. Install laser displacement sensors at the top and bottom of the inclined column, respectively, with their measurement direction perpendicular to the structural reference plane. After installation, with the structure in a static and stable state, simultaneously activate the two laser displacement sensors and collect their outputs, recording them as the initial displacement reference at the top of the inclined column. Initial displacement reference at the bottom of the inclined column ; S12, Deploy environmental sensing units to record initial environmental parameter data for the area where the inclined column is located. ; S13, after the inclined column enters the operation monitoring phase, at a set time interval. Simultaneous acquisition of data from laser displacement sensors at the top and bottom yields the first real-time displacement data at the current moment. Second real-time displacement data At the same time, the environmental sensing unit collects real-time environmental parameter data. .

3. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 1, characterized in that, S21 includes: S211. Based on historical calibration tests, a displacement error model for inclined column displacement measurement under different environmental conditions is constructed. Taking into account temperature, humidity and air pressure, a linear drift response model is used to describe the relationship between sensor error and environmental changes, and the displacement error at the top and bottom caused by environmental disturbances is calculated. S212, based on the calculated displacement errors at the top and bottom ends caused by environmental disturbances, calculates the effective displacement data that reflects the true response of the structure, including the first effective displacement data and the second effective displacement data after compensation.

4. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 1, characterized in that, S3 includes: S31, calculate the modulus of the real spatial offset vector obtained by analysis to obtain the comprehensive offset of the inclined column, which characterizes the degree of overall bending deformation of the inclined column; S32, retrieve the design theoretical resistance displacement of the target cross brace under the current structural configuration, and compare it with the currently calculated comprehensive offset of the inclined column to identify the gap of the cross brace in the deformation of the inclined column, which serves as a preliminary basis for judging whether the cross brace's support capacity is effective. S33, based on the comparison between the comprehensive offset of the inclined column and the theoretical resistance displacement, calculates the cross bracing performance index, which reflects the actual performance level of the cross bracing in supporting the stability of the inclined column. Finally, it forms the structural safety assessment result and serves as the basis for decision-making on structural layout optimization, operational status early warning, and operation and maintenance scheduling.

5. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 4, characterized in that, S31 includes: S311 defines the real space offset vector, which describes the deformation of the inclined column in three-dimensional space relative to its initial installation posture. S312 calculates the magnitude of the offset vector in real space and outputs the overall offset of the inclined column to quantify the degree of bending deformation of the inclined column.

6. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 5, characterized in that, S32 includes: S321, retrieve the target cross brace's theoretical resistance to displacement under the current structural configuration. ; S322, the calculated overall offset of the inclined column is combined with the theoretical resistance displacement of the cross brace design. By comparing the values, the support margin of the cross brace is calculated. If the support margin of the cross brace is negative, it means that the support capacity of the cross brace is insufficient and there is a gap in the cross brace for the deformation of the inclined column.

7. The method for evaluating the effect of cross bracing based on the offset of inclined columns according to claim 6, characterized in that, S33 includes: S331, based on the comprehensive offset of the inclined column and the design theoretical resistance displacement, the performance index of the cross brace is calculated. This reflects the ability of the cross brace to support the deformation of the inclined column; S332, based on the calculated cross brace performance index Generate the evaluation results of the support effect of the cross bracing, when When the theoretical support matches the actual support capacity, the structural support state is reasonable. or If this occurs, it indicates a risk of support deviation, and a warning is issued, suggesting reinforcement or optimization.

8. A system for evaluating the effect of a cross brace based on the offset of a diagonal column, used to implement the method for evaluating the effect of a cross brace based on the offset of a diagonal column as described in any one of claims 1-7, characterized in that, Includes the following modules: Data acquisition module: Laser displacement sensors are fixedly installed at the top and bottom of the inclined column to form a monitoring sensor pair. In the initial stable state, the initial displacement reference at both ends of the inclined column is acquired synchronously, and the initial environmental parameter data output by the environmental sensing unit is recorded at the same time. During real-time monitoring, the first real-time displacement data and the second real-time displacement data at both ends of the inclined column are acquired synchronously, and the real-time environmental parameter data output by the environmental sensing unit is acquired synchronously. Environmental disturbance compensation module: Based on the initial environmental parameter data and the real-time environmental parameter data, environmental disturbance compensation processing is performed on the first real-time displacement data and the second real-time displacement data respectively to obtain the compensated first effective displacement data and the second effective displacement data. Based on the first effective displacement data and the second effective displacement data, the real spatial offset vector of the inclined column after environmental disturbance compensation processing relative to its initial displacement reference at the current moment is analyzed through spatial geometric calculation. The cross brace performance evaluation module calculates the modulus of the real spatial offset vector to obtain the overall offset of the inclined column, which characterizes the degree of bending deformation of the inclined column. It retrieves the design theoretical resistance displacement of the target cross brace, compares and analyzes the overall offset of the inclined column with the design theoretical resistance displacement, calculates the cross brace performance index for quantitatively evaluating the actual support effect of the cross brace on the stability of the inclined column, and generates and outputs the evaluation results based on the cross brace performance index.

Images