Method and system for monitoring safety of integrated steel platform formwork of high-rise building in typhoon environment

Abstract

The present invention relates to the technical field of building construction, in particular to a method for monitoring the safety of an integrated steel platform formwork of a high-rise building in a typhoon environment. A measurement device assembly is provided, and the measurement device assembly is used for collecting safety data of an integrated steel platform formwork system. The method comprises: according to typhoon intensity variations and height increase conditions of a high-rise building, setting a collection frequency of the measurement device assembly, such that the collection frequency is matched with a wind load vibration response of an integrated steel platform formwork system in a typhoon; and evaluating the safety of the integrated steel platform formwork system by using the safety data collected by the measurement device assembly. The present invention can be used to accurately determine the safety of integrated steel platform formwork systems during typhoon passages and whether construction environments of construction equipment are safe under the impact of typhoons.

Description

Safety monitoring method and system for integral steel platform formwork of high-rise buildings in typhoon environment Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method and system for monitoring the safety of an integral steel platform formwork of a high-rise building in a typhoon environment. Background Art

[0002] In recent years, the formwork construction technology used in high-rise buildings has evolved from initial sliding and climbing formwork to integrated steel platform formwork systems. Compared to traditional sliding and climbing formwork technologies, integrated steel platform formwork systems offer superior equipment integrity, adaptability to building shapes, and high-altitude work safety, effectively improving construction efficiency and ensuring quality. Therefore, integrated steel platform formwork systems have become one of the most important construction technologies used in high-rise building construction.

[0003] During construction, the integral steel platform formwork system presents significant safety risks due to its system transitions and unfavorable conditions such as high-altitude operations. This is particularly true during severe typhoon conditions, where it is difficult to determine the safety of construction equipment. Chinese invention patents with application numbers 202310228487.8 and 201910681596.9 disclose the use of electronic devices such as wind speed and direction sensors, displacement sensors, accelerometers, and tilt sensor chips to collect data on high-rise buildings during typhoon conditions. Based on this data, the wind-induced displacement state of the main structure of high-rise buildings in typhoon conditions is assessed, and various structural safety indicators such as tilt, vibration, settlement, strain, and temperature are monitored and monitored for early warning. However, due to the unique characteristics of typhoon conditions and the increasing height of floors during construction, the wind-induced response of the integral steel platform varies with changes in load and natural frequency. Therefore, to avoid the loss of accuracy caused by a constant monitoring frequency, the monitoring equipment needs to adjust its frequency based on the typhoon level and floor height to reduce data errors, thereby facilitating accurate assessment of the safety of the integral steel platform formwork in super-high-rise buildings.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a frequency adjustment scheme and a safety warning method for the monitoring system of the integral steel platform formwork system used in high-rise buildings under construction in a typhoon environment, so as to accurately judge the safety and reliability of the integral steel platform formwork system when a typhoon passes. Generally speaking, the safety issues of high-rise buildings in coastal strong wind zones being affected by wind-induced disasters during the construction process are prominent. Whether its safety status can be accurately monitored under the action of typhoon loads is related to the reliability of construction equipment, the comfort of the construction process and the effective evaluation of safety. Due to the uncontrollability of typhoon environmental factors, the variability of the integral steel platform formwork system and the complex intersection of construction procedures, the monitoring system requires multiple indicators to collaboratively evaluate the safety of the integral steel platform formwork. Therefore, compared with conventional monitoring technical means, this scheme adopts frequency adjustment to achieve safety monitoring of the integral steel platform formwork system of high-rise buildings.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: a method for safety monitoring of an integral steel platform formwork of a high-rise building in a typhoon environment, comprising a detector assembly for collecting monitoring data of the integral steel platform formwork system;

[0007] According to the changes in typhoon levels and the increase in the height of high-rise buildings, the acquisition frequency of the detector components is set to match the wind load vibration response of the overall steel platform formwork system in typhoon weather;

[0008] The safety data collected by the detector assembly is used to evaluate the safety of the integral steel platform formwork system.

[0009] Furthermore, it is set that when the typhoon level is 8 to 12, the collection frequency in typhoon weather is 5 times the collection frequency in normal wind weather.

[0010] Furthermore, it is set that when the typhoon level is 12 to 14, the collection frequency in typhoon weather is 10 times the collection frequency in normal wind weather.

[0011] Furthermore, it is set that when the typhoon level is greater than level 14, the collection frequency in typhoon weather is 20 times the collection frequency in normal wind weather.

[0012] Furthermore, according to the wind profile exponential law formula, the wind speed V at height z is Z =V ref ×(z / z ref ) α , where V Z represents the wind speed at height z, V ref Indicates the reference height z refThe wind speed at the location is usually taken as 10m, and α is the wind profile power index. Considering the square relationship between wind pressure and wind speed, the wind pressure profile index of Class B terrain is set to 0.3. The high-rise building is set to a height of 10m as the construction floor benchmark. For every n×10m increase in floor height, the acquisition frequency increases by n. 0.30 times.

[0013] Furthermore, the detector assembly includes:

[0014] Displacement sensor, used to collect the displacement distance of the overall steel platform formwork system during typhoon weather;

[0015] Inclination sensor, used to collect the tilt angle of the overall steel platform formwork system during typhoon weather;

[0016] The displacement distance of the overall steel platform formwork system in typhoon weather collected by the displacement sensor and the tilt angle of the overall steel platform formwork system in typhoon weather collected by the inclination sensor are mutually verified;

[0017] Verification process: The inclination angle of the overall steel platform formwork system multiplied by the geometric height of the column is verified with the displacement distance of the overall steel platform formwork system.

[0018] Furthermore, the detector assembly includes:

[0019] Acceleration sensor, used to collect acceleration response change data of the overall steel platform formwork system in typhoon weather;

[0020] Three-dimensional anemometer, used to collect typhoon wind speed;

[0021] The typhoon wind speed collected by the three-dimensional anemometer and the acceleration response change data of the overall steel platform formwork system in typhoon weather collected by the acceleration sensor are mutually verified;

[0022] Verification process: Based on the changes in the extreme wind speed data of the typhoon, the relationship between the acceleration response change data of the overall steel platform formwork system and the average wind speed is analyzed.

[0023] The present invention also discloses a safety monitoring system, comprising:

[0024] Displacement sensor, used to collect the displacement distance of the overall steel platform formwork system during typhoon weather;

[0025] Inclination sensor, used to collect the tilt angle of the overall steel platform formwork system during typhoon weather;

[0026] Three-dimensional anemometer, used to collect typhoon wind speed;

[0027] Acceleration sensor, used to collect acceleration response change data of the overall steel platform formwork system in typhoon weather;

[0028] Data transmission module, used for receiving and transmitting data from different sensor modules;

[0029] The data analysis module is electrically connected to the data transmission module. The data analysis module is used to analyze the data detected by various sensors and output the safety results of the overall steel platform construction environment of the high-rise building.

[0030] The beneficial effects of the present invention are as follows: in typhoon weather, by increasing the acquisition frequency of the detector assembly, the acquisition frequency is matched with the wind load vibration response of the overall steel platform formwork system in typhoon weather, thereby improving the accuracy of the overall steel platform formwork system construction monitoring data collected by the detector assembly, thereby accurately judging the safety of the construction equipment in typhoon weather when the high-rise building is constructed to different heights and issuing early warnings, thereby accurately judging whether the construction environment of the overall steel platform formwork system is safe after the influence of the typhoon weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a flow chart of a safety monitoring method provided in an embodiment of the present application.

[0032] 2-4 are schematic diagrams of the distribution of monitoring point locations in the safety monitoring system provided in the embodiments of the present application.

[0033] FIG5 is a diagram showing the extreme value changes in acceleration response of the integral steel platform formwork system under different typhoon levels after finite element analysis using the safety monitoring system and method provided in an embodiment of the present application.

[0034] FIG6 is a diagram showing the extreme value changes in displacement response of the integral steel platform formwork system under different typhoon levels after finite element analysis using the safety monitoring system and method provided in an embodiment of the present application.

[0035] Explanation of reference numbers: 1. Integral steel platform formwork system; 101. Support cylinder frame; 102. Top beam; 11. First monitoring point; 12. Second monitoring point; 13. Third monitoring point. DETAILED DESCRIPTION

[0036] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0037] The inventive concept of the present invention is to match the acquisition frequency of the detector assembly with the wind load vibration response of the overall steel platform formwork system in typhoon weather, so that the detector assembly can obtain more accurate safety assessment data of the overall steel platform formwork system.

[0038] Referring to Figure 1 , the present invention is a method for monitoring the safety of an integral steel platform formwork system for high-rise buildings in a typhoon environment. The method comprises an integral steel platform formwork system positioned atop the high-rise building's core tube. A detector assembly is provided on the integral steel platform formwork system for collecting real-time safety data from the integral steel platform formwork system. The detector assembly's collection frequency is set based on changes in typhoon severity and the building's floor height, matching the integral steel platform formwork system's wind load vibration response during typhoon weather. The safety data collected by the detector assembly is used to assess the safety of the integral steel platform formwork system.

[0039] The specific setting method of the collection frequency of the detector assembly: the collection frequency of the detector assembly used in typhoon weather is greater than the collection frequency of the detector assembly used in normal wind weather, and the collection frequency of the detector assembly increases with the increase of the construction floor height, so that the collection frequency of the detector group matches the wind load vibration response of the overall steel platform formwork system in typhoon weather, thereby improving the accuracy of the overall steel platform formwork system construction monitoring data collected by the detector assembly, and then accurately judge the safety of the construction equipment in typhoon weather when the high-rise building is constructed to different heights and issue an early warning, and then accurately judge whether the construction environment of the overall steel platform formwork system is safe after the influence of typhoon weather.

[0040] Here is a further explanation of "normal wind weather": Normal wind weather refers to weather in which the wind has little impact on the construction of high-rise buildings. In this technical solution, weather with a wind force level of less than level eight is defined as normal wind weather. The "normal wind weather" in the following implementation methods are all based on this description. According to the classification of the China Meteorological Administration's "National Standard for the Implementation of Tropical Cyclone Levels", this technical solution classifies strong wind levels, including "tropical storms" (levels 8-9) and "strong tropical storms" (levels 10-11) as typhoon weather, that is, the typhoon level is 8-17 wind force.

[0041] Technical Principle

[0042] Under normal circumstances, that is, in normal windy weather, as the main structure of a high-rise building gradually increases in height, the building's inherent stiffness gradually decreases, and the natural frequency of the completed main structure decreases. However, in extreme weather conditions, such as typhoon weather, as the main structure of a high-rise building rises, the natural frequency of the high-rise building decreases, and the main structure's natural frequency gradually approaches the dominant frequency of the wind, resulting in an increase in the wind-induced structural response. The wind-induced response of the attached integral steel platform formwork system to the high-altitude wind field also gradually increases accordingly. Moreover, as the main structure of the construction increases in height, the wind speed shows an exponential distribution with height, and the wind force level also increases with the height of the structure, further increasing the wind-induced structural response.

[0043] Therefore, compared with the construction status in normal wind weather, the collection frequency of the detector components needs to be increased accordingly during the time period of strong wind load action, so that the collection frequency of the detector group matches the wind load vibration response of the overall steel platform formwork system in typhoon weather.

[0044] By adopting this technical solution, during typhoon weather, the collection frequency of the detector assembly is increased so that the collection frequency matches the wind load vibration response of the overall steel platform formwork system during typhoon weather, thereby improving the accuracy of the overall steel platform formwork system construction monitoring data collected by the detector assembly. This allows the safety of the construction equipment in typhoon weather when the high-rise building is constructed at different heights to be accurately judged and early warnings to be issued, thereby accurately judging whether the construction environment of the overall steel platform formwork system is safe after the impact of the typhoon weather.

[0045] In one embodiment, when the typhoon level is 8 to 12, the acquisition frequency of the detector assembly in typhoon weather is 5 times the acquisition frequency of the detector assembly in normal wind weather.

[0046] Using this technical solution, when the wind force is low, the wind speed is low, and the effect on the natural vibration frequency of the high-rise building and the wind load on the integral steel platform formwork system is relatively small. When the typhoon force is between 8 and 12, the wind force significantly enhances the wind-induced vibration response of the integral steel platform formwork system. Therefore, when the typhoon force is between 8 and 12, the acquisition frequency of the detector assembly is set to 5 times the acquisition frequency during normal wind weather. This is the best way to adapt to the increased wind-induced structural response caused by typhoon weather, further improving the accuracy of judging the safety of the integral steel platform formwork system when the typhoon force is between 8 and 12.

[0047] In one embodiment, when the typhoon level is 12 to 14, the acquisition frequency of the detector assembly in typhoon weather is 10 times the acquisition frequency of the detector assembly in normal wind weather.

[0048] With this technical solution, when the typhoon force is low, the wind speed is low, and the effect on the natural frequency of the high-rise building and the wind load on the integral steel platform formwork system is relatively small. When the typhoon force is between 12 and 14, the influence of the wind force on the structural wind-induced vibration response of the integral steel platform formwork system is further enhanced compared to the typhoon force between 8 and 12. Therefore, when the typhoon force is between 12 and 14, the acquisition frequency of the detector assembly is set to 10 times the acquisition frequency during normal wind weather. This is the best response to the increased wind-induced structural response caused by typhoon weather, further improving the accuracy of judging the safety of the integral steel platform formwork system when the typhoon force is between 12 and 14.

[0049] In one embodiment, when the typhoon level is greater than level 14, the collection frequency in typhoon weather is 20 times the collection frequency in normal wind weather.

[0050] With this technical solution, when the typhoon is of low magnitude and the wind speed is low, the effect on the natural frequency of the high-rise building and the wind load on the integral steel platform formwork system is relatively small. When the typhoon is greater than level 14, the impact of the wind force on the structural wind-induced vibration response of the integral steel platform formwork system is further enhanced compared to typhoons of levels 12 to 14. Therefore, when the typhoon is greater than level 14, the acquisition frequency of the detector assembly is set to 20 times the acquisition frequency during normal wind conditions. This is optimal for the increased wind-induced structural response caused by typhoon weather, further improving the accuracy of judging the safety of the integral steel platform formwork system when the typhoon is greater than level 14.

[0051] In one embodiment, according to the wind profile exponential law formula, the wind speed V at a height of z is Z =V ref ×(z / z ref ) α , where V Z represents the wind speed at height z, V ref Indicates the reference height z ref The wind speed at the location is usually taken as 10m, and α is the wind profile power index. Considering the square relationship between wind pressure and wind speed, the wind pressure profile index of Class B terrain is set to 0.3. The high-rise building is set to a height of 10m as the construction floor benchmark. For every n×10m increase in floor height, the acquisition frequency increases by n. 0.30 times.

[0052] With this technical solution, as the height of a high-rise building's construction floors increases, the natural frequency of the existing floors decreases, and the structure's natural frequency gradually approaches the dominant wind frequency, leading to an increase in the wind-induced structural response. This in turn increases the wind-induced vibration response of the attached integral steel platform formwork system under high-altitude winds. Furthermore, as the main construction structure grows taller, wind speed exhibits an exponential distribution with height, and wind force levels increase with the height of the structure, further increasing the wind-induced structural response. Increasing the detector assembly's acquisition frequency as the number of completed floors in a high-rise building increases allows for a better match between the detector assembly's acquisition frequency and the wind-induced vibration response of the integral steel platform formwork system during typhoon weather.

[0053] In one embodiment, the detector assembly includes a displacement sensor and an inclination sensor. The displacement sensor is used to detect the displacement distance of the entire steel platform formwork system during typhoon weather; the inclination sensor is used to detect the inclination angle of the entire steel platform formwork system during typhoon weather.

[0054] The displacement distance of the integrated steel platform formwork system during typhoon weather, as measured by displacement sensors, is verified against the tilt angle of the integrated steel platform formwork system during typhoon weather, as measured by inclination sensors. Verification process: The tilt angle of the integrated steel platform formwork system multiplied by the geometric height of the columns is verified against the displacement distance of the integrated steel platform formwork system.

[0055] Here's a further explanation of the "geometric height of the column": The geometric height of the column refers to the height from the bottom to the top of the column in the integral steel platform formwork system, that is, the height from the bottom beam to the top beam of the integral steel platform formwork system. The bottom beam of the integral steel platform formwork system is supported on the shear wall via corbels. The support points are considered hinged and will not vibrate due to typhoons. The rest of the integral steel platform formwork system is unconstrained and supported by the column. Therefore, the displacement data collected by the displacement sensor placed at the top is equal to the column's inclination angle multiplied by the column's geometric height.

[0056] This technical solution primarily focuses on tilt monitoring to prevent single data errors or insensitivity to the tilt monitoring position. Furthermore, since displacement sensors can occasionally be blocked by complex construction processes, displacement monitoring and tilt monitoring are complementary. The reference point for displacement monitoring is set on the steel columns of the exterior wall of the high-rise building's core tube, which refers to the displacement change value formed by the fixed structure. Tilt monitoring uses the change in the inclination of the structure's own frame. The two are mutually verified, corroborating changes in the external reference of the structure with changes in its own inclination.

[0057] In one embodiment, the detector assembly includes an acceleration sensor and a three-dimensional anemometer. The acceleration sensor is used to collect acceleration response change data of the entire steel platform formwork system in typhoon weather; the three-dimensional anemometer is used to collect typhoon wind speed.

[0058] Typhoon wind speeds collected by a 3D anemometer were cross-validated with acceleration sensor data on the acceleration response of the integrated steel platform formwork system during typhoon weather. Verification process: Based on the changes in extreme typhoon wind speed data, the relationship between the acceleration response of the integrated steel platform formwork system and average wind speed was analyzed.

[0059] Specific verification process: For example, when the typhoon wind force is 8 to 12, the acceleration response change data extreme value does not exceed 5m / s 2 The overall steel platform formwork system is considered to be in a safe state; if the typhoon wind force exceeds level 12 and the acceleration limit does not exceed 10m / s 2 , the overall steel platform formwork system is considered to be in a safe state. Specific data can be directly obtained through acceleration sensor and three-dimensional anemometer testing.

[0060] By adopting this technical solution, the typhoon wind speed collected by the three-dimensional anemometer and the acceleration response change data of the overall steel platform formwork system in typhoon weather collected by the acceleration sensor are mutually verified, which can improve the accuracy of the safety judgment of the overall steel platform formwork system.

[0061] In one embodiment, the detector assembly includes a displacement sensor, an inclination sensor, an acceleration sensor, and a three-dimensional anemometer. The displacement sensor is used to collect the displacement distance of the integral steel platform formwork system during typhoon weather; the inclination sensor is used to collect the inclination angle of the integral steel platform formwork system during typhoon weather; the acceleration sensor is used to collect acceleration response change data of the integral steel platform formwork system during typhoon weather; and the three-dimensional anemometer is used to collect typhoon wind speed.

[0062] The displacement distance of the integrated steel platform formwork system during typhoon weather, as measured by the displacement sensor, is verified against the tilt angle of the integrated steel platform formwork system during typhoon weather, as measured by the inclination sensor. Verification process: The tilt angle of the integrated steel platform formwork system multiplied by the geometric height of the column is verified against the displacement distance of the integrated steel platform formwork system.

[0063] Typhoon wind speeds collected by a 3D anemometer were verified against acceleration response data of the integrated steel platform formwork system during typhoon weather, collected by an accelerometer. Verification process: Based on the changes in extreme typhoon wind speed data, the relationship between the acceleration response data of the integrated steel platform formwork system and average wind speed was analyzed.

[0064] By adopting this technical solution, through the setting of four different types of sensors and the mutual verification of two different data, the accuracy of the safety judgment of the overall steel platform formwork system can be improved.

[0065] The invention also discloses a safety monitoring system, which includes a displacement sensor, an inclination sensor, an acceleration sensor, a three-dimensional anemometer, a data transmission module and a data analysis module.

[0066] The displacement sensor is used to measure the displacement of the integrated steel platform formwork system during typhoon conditions. The inclination sensor is used to measure the inclination angle of the integrated steel platform formwork system during typhoon conditions. The three-dimensional anemometer is used to measure wind speed. The acceleration sensor is used to collect data on the acceleration response changes of the integrated steel platform formwork system during typhoon conditions. The data transmission module is used to receive and transmit data. The data analysis module is electrically connected to the data transmission module and is used to analyze the data detected by various sensors and output safety results for the integrated steel platform formwork construction environment of high-rise buildings.

[0067] Example 1

[0068] 2 , 3 and 4 , a method for safety monitoring of an integral steel platform formwork of a high-rise building in a typhoon environment is shown, comprising an integral steel platform formwork system 1 located at the top of a core tube of the high-rise building, wherein a detector assembly is provided on the integral steel platform formwork system for collecting various monitoring data of the integral steel platform formwork system in real time during construction.

[0069] The detector assembly includes displacement sensors, inclination sensors, acceleration sensors, and a three-dimensional anemometer installed at monitoring points. The displacement sensors collect displacement data of the integral steel platform formwork system during typhoon weather; the inclination sensors collect data on changes in the inclination angle of the integral steel platform formwork system during typhoon weather; the acceleration sensors collect data on changes in the acceleration response of the integral steel platform formwork system during typhoon weather; and the three-dimensional anemometer collects wind speed data.

[0070] Referring to Figures 2, 3 and 4, Figure 2 is the distribution of monitoring point positions of the overall steel platform formwork system 1 at a top-down angle, and Figures 3 and 4 are the distribution of monitoring points at horizontal and longitudinal cross-sectional angles of Figure 2 respectively. The monitoring point positions include a first monitoring point 11 located at a corner position of the overall steel platform formwork system 1, a second monitoring point 12 located at the center position of the overall steel platform formwork system 1, and a third monitoring point 13 located at a corner position of the support cylinder frame 101 of the overall steel platform formwork system 1 and below its top beam 103; displacement sensors and acceleration sensors are both arranged at the first monitoring point 11 and the second monitoring point 12, and the inclination sensor is arranged at the third monitoring point 13.

[0071] There are 12 displacement sensors, divided into six equal groups. Each group covers both X and Y detection directions. These six groups are located at the four corners and the center of the integral steel platform formwork system. The precise placement and positioning of these six displacement sensors allows for accurate detection of displacement changes within the integral steel platform formwork system.

[0072] There are eight inclination sensors, divided equally into four groups. Each group monitors two X and Y directions, reflecting changes in inclination in two vertical directions. These four groups are located at the four corners of the support cylinders of the integral steel platform formwork system, all beneath the top beam. This prevents strong winds and heavy rain from interfering with the monitoring data during typhoon weather. The corners are also where the displacement response of the integral steel platform formwork system is greatest, making them ideal control points.

[0073] There are 12 accelerometers, divided equally into six groups. Each group covers two detection directions, X and Y. The six groups are placed in the same locations as the displacement sensors. Both the accelerometers and displacement sensors are located at the four corners of the integral steel platform formwork system, where the response is greatest, and at the central equilibrium position of the system. This allows for more accurate observation of the vibration frequency of the integral steel platform formwork system during typhoons. Excessive structural vibration response will trigger a warning.

[0074] The three-dimensional anemometer is arranged at the corner of the integral steel platform formwork system in the direction of prevailing wind flow.

[0075] Example 2

[0076] Referring to Figure 1, the collection frequency of the detector assembly is set so that the collection frequency of the detector assembly used in typhoon weather is greater than the collection frequency of the detector assembly used in normal wind weather, and the collection frequency of the detector assembly increases with the increase of the construction floors of the high-rise building, so that the collection frequency of the detector assembly matches the wind load vibration response of the overall steel platform formwork system in typhoon weather.

[0077] Specifically, taking the construction of a high-rise building at a height of 10 meters as an example, in normal windy weather, the acquisition frequencies of the displacement sensor, inclination sensor, accelerometer, and 3D anemometer are 1 / 300Hz, 1 / 300Hz, 4Hz, and 1 / 5Hz, respectively. During a typhoon, especially when the typhoon is between levels 8 and 12, the acquisition frequencies of the displacement sensor, inclination sensor, accelerometer, and 3D anemometer are 1 / 60Hz, 1 / 60Hz, 20Hz, and 1 / 1Hz, respectively. When the typhoon is between levels 12 and 14, the acquisition frequencies of the displacement sensor, inclination sensor, accelerometer, and 3D anemometer are 1 / 30Hz, 1 / 30Hz, 40Hz, and 2Hz, respectively.

[0078] When the typhoon level exceeds level 14, the acquisition frequencies of the displacement sensor, tilt sensor, acceleration sensor and three-dimensional anemometer are 1 / 15Hz, 1 / 15Hz, 80Hz and 4Hz respectively. The calculation formula of the change of wind pressure with height is: ω×(z / 10) 0.30 , where ω is the wind pressure value at a height of 10m. In typhoon weather, for every n*10m increase in the number of construction floors of a high-rise building, the acquisition frequency of the detector component increases by n. 0.30 times.

[0079] As shown in Figures 5 and 6, during periods of normal winds, wind speeds are low, and the wind-induced structural response is negligible. Therefore, the detector assembly's acquisition frequency can be adjusted to a lower value. For typhoons of force 14 or higher, and force 12 to 14, theoretical response values ​​derived from finite element simulations show that the acceleration and displacement response values ​​of the integral steel platform formwork system are approximately double and quadruple those for typhoons of force 8 to 12, respectively. Therefore, increasing the acquisition frequency to double and quadruple, respectively, achieves optimal monitoring results.

[0080] Assuming that the acquisition frequency of the detector component on the 10th floor is w, the frequency is adjusted to ω×n for every n*10m increase in the floor height. 0.30 , according to n 0.30 Increase the acquisition frequency. The calculation formula of wind pressure height variation coefficient is: 1.000*(z / 10) 0.30 , then according to the wind load formula: ω=β z μ s μ z ω0, where the wind vibration coefficient β z Does not change with height, body shape coefficient μ z The basic wind pressure ω0 does not change with height. It is only related to the wind pressure recurrence period and regional differences. The change of the wind pressure height coefficient can represent the change of wind force with height under certain conditions. Therefore, the monitoring frequency is adjusted with the construction height of the high-rise building: assuming that the base frequency at the 10th floor is w, then the frequency is adjusted to w×n for every n*10 floors increase. 0.30 , according to n 0.30 The acquisition frequency is increased by several times, which can make the acquisition frequency of the detector component more closely match the natural vibration frequency of high-rise buildings in typhoon weather.

[0081] The range of safety thresholds for the safety monitoring system is set as follows:

[0082] Regarding the setting of early warning of the safety monitoring system:

[0083] The highest priority is the displacement sensor, which prioritizes handling any displacement sensor changes within the entire steel platform formwork system. The next highest priority is the inclination sensor. When the structure of the entire steel platform formwork system is damaged, it may tilt in a certain direction. This may not necessarily lead to a significant increase in vibration, but in reality, the entire steel platform formwork system is already in a more dangerous operating state. Therefore, when both the inclination sensor and the accelerometer issue alarm signals simultaneously, the inclination sensor's alarm should be prioritized. The accelerometer's priority is after the displacement sensor and the inclination sensor. Given the variability of weather factors, the three-dimensional anemometer is given last priority.

[0084] Regarding the relationship between the early warning of displacement sensors, inclination sensors, acceleration sensors and three-dimensional anemometers: after the alarm of displacement sensors, inclination sensors, acceleration sensors, etc. occurs, the weather information of the corresponding time needs to be transmitted to the monitoring center, and the sudden change of weather conditions can easily cause false alarms and early warnings. Therefore, the three-dimensional anemometer should coordinate with the displacement sensor, inclination sensor and acceleration sensor to work, especially during typhoons. The coordinated work of the four is crucial to the accuracy of the alarm information.

[0085] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for monitoring the safety of an integral steel platform formwork of a high-rise building in a typhoon environment, comprising a detector assembly, wherein the detector assembly is used to collect safety data of the integral steel platform formwork system, Features: According to the change of typhoon grade and the increase of floors of high-rise buildings, the acquisition frequency of the detector assembly is set so that the acquisition frequency matches the wind load vibration response of the integral steel platform formwork system in typhoon weather; The safety data collected by the detector assembly is used to evaluate the safety of the integral steel platform formwork system.

2. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in typhoon environment described in claim 1, Features: When the typhoon level is 8 to 12, the collection frequency in typhoon weather is 5 times the collection frequency in normal wind weather.

3. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in typhoon environment described in claim 1, Features: When the typhoon level is 12 to 14, the collection frequency in typhoon weather is 10 times the collection frequency in normal wind weather.

4. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in a typhoon environment as described in claim 1, Features: When the typhoon level is greater than level 14, the collection frequency in typhoon weather is 20 times the collection frequency in normal wind weather.

5. The safety monitoring method for the integral steel platform formwork of a high-rise building in a typhoon environment according to claim 1, Features: The acquisition frequency increases by n*10m for every increase in the number of floors of the high-rise building. 0.30 times.

6. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in typhoon environment described in claim 1, It is characterized in that The detector assembly comprises: A displacement sensor, used to collect the displacement distance of the integral steel platform formwork system in typhoon weather; An inclination sensor is used to collect the inclination angle of the integral steel platform formwork system in typhoon weather; The displacement distance of the integral steel platform formwork system in typhoon weather collected by the displacement sensor and the inclination angle of the integral steel platform formwork system in typhoon weather collected by the inclination sensor are mutually verified; Verification process: The inclination angle of the integral steel platform formwork system multiplied by the geometric height of the column is mutually verified with the displacement distance of the integral steel platform formwork system.

7. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in typhoon environment described in claim 1, It is characterized in that The detector assembly comprises: An acceleration sensor, used to collect acceleration response change data of the integral steel platform formwork system in typhoon weather; Three-dimensional anemometer, used to collect typhoon wind speed; The typhoon wind speed collected by the three-dimensional anemometer and the acceleration response change data of the integral steel platform formwork system in typhoon weather collected by the acceleration sensor are mutually verified.

8. According to the method for safety monitoring of integral steel platform formwork of high-rise buildings in a typhoon environment as described in claim 1, It is characterized in that The detector assembly comprises: A displacement sensor, used to collect the displacement distance of the integral steel platform formwork system in typhoon weather; An inclination sensor is used to collect the inclination angle of the integral steel platform formwork system in typhoon weather; An acceleration sensor, used to collect acceleration response change data of the integral steel platform formwork system in typhoon weather; Three-dimensional anemometer, used to collect typhoon wind speed; The displacement distance of the integral steel platform formwork system in typhoon weather collected by the displacement sensor and the inclination angle of the integral steel platform formwork system in typhoon weather collected by the inclination sensor are mutually verified; Verification process: the inclination angle of the integral steel platform formwork system multiplied by the geometric height of the column and the displacement distance of the integral steel platform formwork system are mutually verified; The typhoon wind speed collected by the three-dimensional anemometer and the acceleration response change data of the integral steel platform formwork system in typhoon weather collected by the acceleration sensor are mutually verified.

9. A safety monitoring system, It is characterized in that include: Displacement sensor, used to collect the displacement distance of the overall steel platform formwork system in typhoon weather; Inclination sensor, used to collect the inclination angle of the overall steel platform formwork system in typhoon weather; Three-dimensional anemometer, used to collect typhoon wind speed; Acceleration sensor, used to collect acceleration response change data of the overall steel platform formwork system in typhoon weather; Data transmission module, used for receiving and transmitting data; A data analysis module is electrically connected to the data transmission module, and is used to analyze the data detected by various sensors and output the safety results of the integral steel platform formwork at the top of the core tube of the high-rise building.

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