Real-time monitoring system of hanging basket for bridge cantilever casting construction

Abstract

The invention relates to a real-time monitoring system for a hanging basket for bridge cantilever casting construction. The real-time monitoring system is characterized by comprising a data acquisition module, a data communication module, a cloud server and a real-time monitoring module, a real-time monitoring system for the hanging basket is adopted, prevention is taken as a main target, on the basis of various basic investigations in the early stage, the working state of the hanging basket is monitored / monitored in real time by adopting a sensor monitoring means, state data such as stress and displacement of key parts of the hanging basket structure are obtained in real time, and a signal information processing method is combined; structural damage characteristic parameters are extracted, the state and unsafe factors of the structure are identified, early diagnosis, analysis, forecasting and the like are carried out on the structural condition of the hanging basket, and safe and stable operation of the hanging basket is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of hanging basket monitoring, and in particular to a hanging basket real-time monitoring system for bridge suspended pouring construction. Background Art

[0002] Hanging baskets are generally used as auxiliary construction equipment in suspended pouring construction of bridges. As a multi-system, multi-working condition and assembled structure, the hanging basket has extremely high requirements for the construction of main rods, hangers and anchors. However, most of the current construction is still heavily dependent on the experience and judgment of construction personnel, especially whether the hangers and anchors of each working condition are constructed in place according to the design, and it is impossible to accurately control the various parameters of the construction process in real time.

[0003] Therefore, during the entire construction process, it is necessary to conduct on-site real-time monitoring of the stress and deformation of important parts of the hanging basket structure, establish a real-time monitoring system to store, display and analyze monitoring data, set up an early warning mechanism and make necessary adjustments to the parameters and status of the construction hanging basket structure as needed. At the same time, monitoring is carried out on the outside of the hanging basket and the relatively hidden working positions on the bottom plate to ensure the safety of the structure and the safety of personnel during the hanging basket cantilever casting construction process. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a real-time monitoring system for a hanging basket used in bridge suspended pouring construction, which can monitor the hanging basket during construction so as to take corresponding disposal measures to avoid construction risks.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a real-time monitoring system for a hanging basket for bridge suspended pouring construction, the innovation of which is: comprising a data acquisition module, a data communication module, a cloud server and a real-time monitoring module; The data acquisition module uses a sensor installed on the hanging basket structure to collect real-time data on the deformation of the hanging basket; The data communication module is connected to the cloud server based on a wireless network to perform data transmission and command issuance; The cloud server includes data acquisition software, analysis software and a front-end web page; the data acquisition software is used to sort out the deformation data of the hanging basket collected by the data acquisition module; the analysis software is used to analyze and compare the data sorted by the data acquisition software, and the data is displayed on the front-end web page; The cloud server is also provided with a real-time monitoring module and a comprehensive management module to monitor and manage the hanging basket; The real-time monitoring module performs real-time monitoring on whether workers in concealed working areas are engaging in unsafe working behaviors.

[0006] Furthermore, the real-time monitoring module can be used to display project information, a three-dimensional model of the hanging basket structure, locations and data of different monitoring points, and perform data query and screening according to the location of the monitoring points, monitoring time, monitoring frequency, and construction conditions, perform statistical analysis on the data, and display charts.

[0007] Furthermore, in the comprehensive management module, due to monitoring errors and poor test environment factors, data cleaning methods are used to process abnormal values ​​in the monitoring data; the stress and deformation laws of different parts of the hanging basket structure under different working conditions are analyzed to determine the state of each part of the hanging basket structure; based on the data mining method, stress and deformation trends are predicted, and warning thresholds are set to determine whether to trigger a warning. If a warning is triggered, the designated relevant person in charge is notified by SMS as soon as possible, and disposal measures are taken to rectify the situation, increase the monitoring and inspection frequency, and ensure the safety of subsequent hanging basket cantilever casting construction; Based on the monitoring data, the relationship between the stress and deformation of the hanging basket structure and the construction conditions, the hanging basket position, etc. is analyzed, and corresponding suggestions are given for adjusting the hanging basket structure status and construction parameters. At the same time, simulation calculation links can be added during the independent development process to conduct matching analysis on the actual construction conditions, so as to achieve the effect of digital twins within a certain cost range.

[0008] Furthermore, the data acquisition module determines the key monitoring parts of the hanging basket system based on engineering experience or theoretical analysis, including the front crossbeam sling of the bottom basket, the cantilever end of the front load-bearing truss, the vertical web rod, and the rear anchoring crossbeam, and determines the number of monitoring points, and uses a vibrating string sensor to monitor stress and a static level to monitor deformation.

[0009] Furthermore, the data communication module uploads the monitoring data to the cloud server via DTU wireless transmission.

[0010] Furthermore, a stress sensor is arranged on the hanging basket to monitor the stress value, a level sensor and a wind speed sensor are arranged to monitor the levelness and wind speed value, and a displacement sensor and a temperature sensor are arranged to monitor the stretching amount and temperature; the monitoring data collected by each of the sensors is uploaded to a server located on the ground in real time; the data processing module in the server determines the state of the hanging basket after processing and analyzing the monitoring data; Setting critical values ​​a and b of the horizontality of the mounting frame, where a<b; If the level detected by the level sensor is ≤a, the hanging basket is in a normal state; If the horizontality is ≥ b, the hanging basket is in an abnormal state, and the server sends out an early warning notification; If the horizontality of the hanging basket is between a and b, the hanging basket is in a suspected abnormal state; then the data processing module calls the wind speed in the same period monitored by the wind speed sensor on the hanging basket. If the wind speed is ≤14m / s or ≥24m / s, the hanging basket changes from the suspected abnormal state to the abnormal state, and sends out an early warning notification through the server; if the wind speed is between 14m / s and 24m / s, the hanging basket changes from the suspected abnormal state to the normal state.

[0011] The advantages of the present invention are: 1) The present invention adopts a real-time monitoring system for the hanging basket, with the goal of "prevention first". On the basis of various basic investigations in the early stage, the working status of the hanging basket is monitored in real time by using sensor monitoring means, and the stress, displacement and other status data of the key parts of the hanging basket structure are obtained in real time. Combined with the signal information processing method, the characteristic parameters of structural damage are extracted, the state and unsafe factors of the structure are identified, and the structural condition of the hanging basket is diagnosed, analyzed, and predicted at an early stage to ensure the safe and stable operation of the hanging basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a diagram of a real-time monitoring system for a hanging basket used for suspended pouring construction of a bridge according to the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1 A real-time monitoring system for a hanging basket used in bridge suspended pouring construction is shown, comprising a data acquisition module, a data communication module, a cloud server and a real-time monitoring module.

[0017] The data acquisition module uses sensors installed on the hanging basket structure to collect real-time data on the deformation of the hanging basket.

[0018] The data communication module is connected to the cloud server based on a wireless network for data transmission and instruction issuance.

[0019] The cloud server includes data acquisition software, analysis software and front-end webpage; the deformation data of the hanging basket collected by the data acquisition module is sorted out by the data acquisition software; the data sorted out by the data acquisition software is analyzed and compared by the analysis software, and displayed on the front-end webpage.

[0020] The cloud server is also equipped with a real-time monitoring module and a comprehensive management module to monitor and manage the hanging basket.

[0021] The real-time monitoring module monitors whether workers in concealed working areas have any unsafe working behaviors.

[0022] The real-time monitoring module can be used to display project information, three-dimensional model of the hanging basket structure, locations and data of different monitoring points, and query and filter data according to the location of monitoring points, monitoring time, monitoring frequency, and construction conditions, perform statistical analysis on the data, and display charts.

[0023] In the comprehensive management module, due to monitoring errors and poor testing environment factors, data cleaning methods are used to process abnormal values ​​in the monitoring data; the stress and deformation laws of different parts of the hanging basket structure under different working conditions are analyzed to determine the status of each part of the hanging basket structure; based on the data mining method, the stress and deformation trends are predicted, and the early warning threshold is set to determine whether the early warning is triggered. If the early warning is triggered, the designated relevant person in charge is notified by SMS as soon as possible, and disposal measures are taken to rectify the situation, increase the monitoring and inspection frequency, and ensure the safety of subsequent hanging basket cantilever casting construction.

[0024] Based on the monitoring data, the relationship between the stress and deformation of the hanging basket structure and the construction conditions, the hanging basket position, etc. is analyzed, and corresponding suggestions are given for adjusting the hanging basket structure status and construction parameters. At the same time, simulation calculation links can be added during the independent development process to conduct matching analysis on the actual construction conditions, so as to achieve the effect of digital twins within a certain cost range.

[0025] In the data acquisition module, based on engineering experience or theoretical analysis, the key monitoring parts of the hanging basket system are determined, including the front crossbeam sling of the bottom basket, the cantilever end of the front load-bearing truss, the vertical web bar, and the rear anchor beam. The number of monitoring points is also determined, and a vibrating string sensor is used to monitor stress and a static level to monitor deformation.

[0026] In the data communication module, the monitoring data is uploaded to the cloud server via DTU wireless transmission.

[0027] A stress sensor is arranged on the hanging basket to monitor the stress value, a level sensor and a wind speed sensor are arranged to monitor the levelness and wind speed value, and a displacement sensor and a temperature sensor are arranged to monitor the stretching amount and temperature; the monitoring data collected by each of the sensors is uploaded to a server located on the ground in real time; the data processing module in the server determines the state of the hanging basket after processing and analyzing the monitoring data; Setting critical values ​​a and b of the horizontality of the mounting frame, where a<b; If the level detected by the level sensor is ≤a, the hanging basket is in a normal state; If the horizontality is ≥ b, the hanging basket is in an abnormal state, and the server sends out an early warning notification; If the horizontality of the hanging basket is between a and b, the hanging basket is in a suspected abnormal state; then the data processing module calls the wind speed in the same period monitored by the wind speed sensor on the hanging basket. If the wind speed is ≤14m / s or ≥24m / s, the hanging basket changes from the suspected abnormal state to the abnormal state, and sends out an early warning notification through the server; if the wind speed is between 14m / s and 24m / s, the hanging basket changes from the suspected abnormal state to the normal state.

[0028] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall all fall within the scope of the present invention claimed for protection.

Claims

1. A real-time monitoring system for a hanging basket used in bridge suspended pouring construction, characterized in that: It includes data acquisition module, data communication module, cloud server and real-time monitoring module; The data acquisition module uses a sensor installed on the hanging basket structure to collect real-time data on the deformation of the hanging basket; The data communication module is connected to the cloud server based on a wireless network to perform data transmission and command issuance; The cloud server includes data acquisition software, analysis software and a front-end web page; the data acquisition software is used to sort out the deformation data of the hanging basket collected by the data acquisition module; the analysis software is used to analyze and compare the data sorted by the data acquisition software, and the data is displayed on the front-end web page; The cloud server is also provided with a real-time monitoring module and a comprehensive management module to monitor and manage the hanging basket; The real-time monitoring module performs real-time monitoring on whether workers in concealed working areas are engaging in unsafe working behaviors.

2. A real-time monitoring system for a hanging basket for bridge suspended pouring construction according to claim 1, characterized in that: The real-time monitoring module can be used to display project information, a three-dimensional model of the hanging basket structure, locations and data of different monitoring points, and perform data query and screening according to the location of the monitoring points, monitoring time, monitoring frequency, and construction conditions, perform statistical analysis on the data, and display charts.

3. A real-time monitoring system for a hanging basket for bridge suspended pouring construction according to claim 1, characterized in that: In the comprehensive management module, due to monitoring errors and poor test environment factors, the abnormal values ​​in the monitoring data are processed by data cleaning methods; the stress and deformation laws of different parts of the hanging basket structure under different working conditions are analyzed to determine the status of each part of the hanging basket structure; Predict stress and deformation trends based on data mining methods, set warning thresholds, and determine whether to trigger a warning. If a warning is triggered, notify the designated person in charge via SMS immediately, take disposal measures to rectify, increase the frequency of monitoring and inspection, and ensure the safety of subsequent hanging basket cantilever casting construction; Based on the monitoring data, the relationship between the stress and deformation of the hanging basket structure and the construction conditions, the hanging basket position, etc. is analyzed, and corresponding suggestions are given for adjusting the hanging basket structure status and construction parameters. At the same time, simulation calculation links can be added during the independent development process to conduct matching analysis on the actual construction conditions, so as to achieve the effect of digital twins within a certain cost range.

4. A real-time monitoring system for a hanging basket for bridge suspended pouring construction according to claim 1, characterized in that: The data acquisition module determines the key monitoring parts of the hanging basket system based on engineering experience or theoretical analysis, including the front crossbeam sling of the bottom basket, the cantilever end of the front load-bearing truss, the vertical web rod, and the rear anchor crossbeam, and determines the number of monitoring points. A vibrating string sensor is used to monitor stress and a static level is used to monitor deformation.

5. The real-time monitoring system for a hanging basket for bridge suspended pouring construction according to claim 1 is characterized by: The data communication module uploads the monitoring data to the cloud server via DTU wireless transmission.

6. A real-time monitoring system for a hanging basket for bridge suspended pouring construction according to claim 1, characterized in that: A stress sensor is arranged on the hanging basket to monitor the stress value, a level sensor and a wind speed sensor are arranged to monitor the levelness and wind speed value, and a displacement sensor and a temperature sensor are arranged to monitor the stretching amount and temperature; The monitoring data collected by each sensor is uploaded to a server located on the ground in real time; the data processing module in the server determines the state of the hanging basket after processing and analyzing the monitoring data; Setting critical values ​​a and b of the horizontality of the mounting frame, where a<b; If the level detected by the level sensor is ≤a, the hanging basket is in a normal state; If the horizontality is ≥ b, the hanging basket is in an abnormal state, and the server sends out an early warning notification; If the horizontality of the hanging basket is between a and b, the hanging basket is in a suspected abnormal state; then the data processing module calls the wind speed of the same period monitored by the wind speed sensor on the hanging basket, and if the wind speed is ≤14m / s or ≥24m / s, the hanging basket changes from the suspected abnormal state to the abnormal state, and sends an early warning notification to the outside through the server; If the wind speed is between 14m / s and 24m / s, the hanging basket changes from a suspected abnormal state to a normal state.

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