WO2018195712A1

WO2018195712A1 - System and method for monitoring health of high-rise building

Info

Publication number: WO2018195712A1
Application number: PCT/CN2017/081670
Authority: WO
Inventors: 李小伦
Original assignee: 深圳市瑞荣创电子科技有限公司
Priority date: 2017-04-24
Filing date: 2017-04-24
Publication date: 2018-11-01

Abstract

A system for monitoring the health of a building, and particularly, a system and method for monitoring the health of a high-rise building. The system comprises a sensor system, a data collection system, a data storage and management system, and a building health analysis and early-warning management system. The sensor system is connected to the data collection system, the data collection system is connected to the data storage and management system through a wired or a wireless network, and the information storage and management system is connected to the building health analysis and early-warning management system. The monitoring system can provide an accurate detection result, has low costs, is convenient to deploy, has good scalability, and can perform monitoring for a long period in real time. Data is collected through the wireless network, so as to perform processing and analysis, obtain the condition of a change of a structure in time, find the position of the structure where a damage occurs and the degree of the damage; in this way, a method for processing the structure in time is made, such as the repair of the building and the early warning of a deformation exceeding a limit, and compared with a conventional method, costs can be reduced in the method.

Description

Title: High-rise building health monitoring system and monitoring method

[0001] The present invention relates to a building health monitoring system, particularly a high-rise building health monitoring system and monitoring method

Background technique

[0002] At present, the number of high-rise buildings is increasing, and building deformation can lead to sudden disasters such as collapse.

Therefore, structural health monitoring of tall buildings has become more important. However, current structural health monitoring is typically monitored manually or by wired sensors. These methods are inefficient, can't be monitored in real time, and waste manpower and resources.

technical problem

[0003] In order to solve the above problems, the present invention provides a high-rise building health monitoring system and a monitoring method with accurate detection results, low cost, and long-term monitoring.

Problem solution

Technical solution

[0004] The specific technical solution is:

[0005] a high-rise building health monitoring system, comprising a sensor system, a data acquisition system, a data storage and management system, and a building health analysis and early warning management system, the sensor system being connected to a data acquisition system, the data acquisition system being wired or wireless The network is connected to a data storage and management system, the data storage and management system is coupled to a building health analysis and early warning management system; the sensor system is used for environmental monitoring and load monitoring of tall buildings; the data acquisition system is issued to the sensor system Acquiring signals, accepting detection signals of the sensor system and transmitting them to the data storage and management system; the data storage and management system accepts data of the data acquisition system and stores them in categories, and displays the data; the building health analysis and early warning management system According to the data storage and management system data, the actual analysis and processing, determine the location and extent of damage, display the table and graphical display, show the overall and local state performance of the building structure to the staff, and analyze the future Graphics inch display with trend potential is carried out, to assess the reliability of the structure, warning potential safety hazards. [0006] Preferably, the environmental monitoring includes wind load, ambient temperature and humidity, and earthquake; the load monitoring includes vertical uneven deformation of the inner and outer cylinders, horizontal deformation of the top layer of the structure and foundation settlement, interlayer displacement, key member and joint stress And structural vibration.

[0007] Preferably, the sensor system comprises a three-way ultrasonic anemometer, a propeller anemometer, a temperature and humidity meter, a strong vibration meter, a static level, a beam tilt meter, a vibrating wire strain gauge and an acceleration sensor.

[0008] Preferably, the three-way ultrasonic anemometer, the propeller anemometer and the temperature and humidity meter are installed on the top layer of the high-rise building; the strong earthquake instrument is installed on the base layer of the high-rise building; the static level installation At the top and middle floors of the structure of the high-rise building; the beam inclinometer and the acceleration sensor are both installed in the electromechanical layer of the high-rise building; the vibrating wire strain gauge is installed on the bottom and middle floors of the high-rise building.

[0009] Preferably, the data collection system is provided according to the installation requirements of the sensor system, and the data acquisition system includes an A/D conversion module and a transmission module both connected to the single chip module, and the transmission module includes a wireless module. And / or RS485 line.

[0010] wherein, the single chip module comprises an STM32F103 single chip microcomputer.

[0011] Preferably, the wireless module comprises ZigBee or WiFi or GPRS/2G/3G/4G.

[0012] Preferably, the data storage and management system comprises a computer and management analysis software.

[0013] The monitoring method for high-rise building health includes the following steps:

[0014] planning the installation location of the S1 sensor, planning the sensor installation location according to the structural characteristics of the high-rise building, the three-way ultrasonic anemometer, the propeller anemometer, and the temperature and humidity meter are all installed on the top layer of the structure of the high-rise building; The strong seismograph is installed on the base layer of the high-rise building; the static level is installed on the top and middle floors of the structure of the high-rise building; the beam tilt meter and the acceleration sensor are installed on the electromechanical layer of the high-rise building; The strain gauges are installed on the bottom and middle floors of high-rise buildings.

[0015] The S2 communication mode is selected, and the data collection system is connected to the data storage and management system by using a ZigBee wireless network;

[0016] The S3 data is collected, the data acquisition system is provided with multiple, the data acquisition system is connected with the adjacent sensor, the data acquisition system sends a detection instruction to the sensor, the sensor performs detection and transmits the detected data to the data acquisition system, and the data The acquisition system transmits the detected signals to the data storage and management system through the ZigBee and uses the TCP/IP protocol;

[0017] The storage and display of the S4 data, the data storage and management system feeds the information transmitted by the data acquisition system Row classification storage, that is, classifying related detection data according to different address information, and displaying data in the same manner;

[0018] S5 building health analysis and early warning tube, building health analysis and early warning management system based on data storage and management system data for real-time analysis and processing, to determine the location and extent of damage, table and graphical display, Show the staff the overall and local state performance of the building structure, and analyze the future trend of the same trend to display the trend of the structure, assess the reliability of the structure, and provide early warning of potential safety hazards.

[0019] The monitoring of the environment mainly includes comprehensive detection of wind speed, wind direction, ambient temperature and seismic load. Among them, the main purpose of detecting wind direction and wind speed is to obtain wind direction and wind speed in different parts of high-rise buildings, so as to make different vibration responses for different wind speeds; the monitoring of the environment is mainly for the durability of steel structures of high-rise buildings. The use of the evaluation provides the basis for evaluation; seismic load analysis is to analyze the vibrations that the high-rise building project can withstand, so as to analyze and evaluate the health status after the earthquake.

[0020] The damage of the wind to the high-rise structure is mainly due to the occurrence of cracks or residual deformation under the action of the wind. The external decoration parts of the building, such as the glass curtain wall and the decoration, are oscillated under the action of wind vibration, causing human discomfort and long-term wind load. Fatigue damage and so on.

[0021] Ambient temperature and humidity are one of the factors affecting the steel structure.

[0022] Due to the large vertical load of the high-rise building, the structural system, load size and distribution of the inner and outer cylinders are quite different, and there are also successive differences between the inner and outer cylinders, which leads to uneven settlement and deformation of the inner and outer cylinders, which may The bow I has safety hazards such as structural internal force redistribution and stress concentration.

[0023] Under the wind load, the horizontal deformation of the top layer is large, which will cause additional stress and overturning moment due to the Ρ-Δ effect, which has a great influence on the safety and normal use of the structure. In addition, the vertical load of the upper layer is very high. Large, there will be foundation settlement during a long period of time during normal use of the building.

[0024] The interlayer displacement of the weak layer and the key layer is an important parameter for measuring structural safety and use state.

[0025] The internal force and deformation of the structure are important parameters to measure the effect of external load on the structure. The internal force is the most direct parameter reflecting the stress of the structure. Therefore, the stress and strain of key structural members and nodes and stress concentration parts are monitored. , to grasp the stress state of the structure, to ensure the safety of the structure. Stress monitoring shall take into account temperature compensation. The objects to be tested include concrete-filled steel tubular columns, beams, supports and steel shear walls.

[0026] Structural vibration is mainly an acceleration signal, which is mainly used to determine the dynamic characteristics of the structure, and the monitoring structure is in the wind load. The wind-induced vibration response under load is an important parameter for structural comfort evaluation. The change of structural modal parameters reflects the change of the overall state of the structure, including performance degradation, breadth change and changes in supporting boundary conditions. Considering the structural complexity, structural vibration monitoring should include horizontal two-way vibration and structural torsional effects.

Advantageous effects of the invention

Beneficial effect

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The detection result is accurate, low in cost, convenient in arrangement, good in expandability, and capable of long-term monitoring.

[0029] The data is collected and processed by the wireless network, and the structural changes are obtained, and the location and extent of the damage of the structure are found, so that the structure is processed and repaired, such as repairing and deforming the building. Over-limit warnings, etc., can save costs compared to traditional methods.

[0030] The high-rise building health monitoring system and monitoring method provided by the present invention use a wireless network to monitor the security status of a high-rise building, first reducing power consumption and saving cost, and secondly, more flexiblely arranging sensors according to different monitoring objects. The node improves the monitoring ability of the building structure and environment, and can accurately, accurately and intuitively monitor the multiple safety influencing factors of the high-rise building through the analysis software, thereby providing a safety warning for the high-rise building structure, and can be a structural The safety assessment provides a scientific basis.

Embodiments of the invention

[0031] This is further illustrated by the examples.

Embodiment 1

[0033] a high-rise building health monitoring system, comprising a sensor system, a data acquisition system, a data storage and management system, and a building health analysis and early warning management system, wherein the sensor system is connected to a data acquisition system, and the data acquisition system is connected to the data network A data storage and management system is coupled to the building health analysis and early warning management system.

[0034] The sensor system is used for environmental monitoring and load monitoring of high-rise buildings; the environmental monitoring includes wind load, ambient temperature and humidity, and earthquake; the load monitoring includes vertical uneven deformation of the inner and outer cylinders, horizontal deformation of the top layer of the structure, and foundation settlement. , interlayer displacement, critical component and joint stress, and structural vibration. The sensor system includes a three-way ultrasonic anemometer, a propeller anemometer, a temperature and humidity meter, a strong vibration meter, a static level, Beam tilt meter, vibrating wire strain gauge and accelerometer. The three-way ultrasonic anemometer, the propeller anemometer and the temperature and humidity meter are installed on the top layer of the structure of the high-rise building; the strong seismic meter is installed on the base layer of the high-rise building; the static level is installed on the top of the structure of the high-rise building And the middle floor; the beam tilt meter and the acceleration sensor are both mounted on the electromechanical layer of the high-rise building; the vibrating wire strain gauge is installed on the bottom and middle floors of the high-rise building.

[0035] The data acquisition system sends an acquisition signal to the sensor system, receives the detection signal of the sensor system, and transmits the detection signal to the data storage and management system; the data acquisition system is provided according to the installation requirements of the sensor system, and the data collection system includes An A/D conversion module and a transmission module each connected to the single chip module, and the transmission module includes a wireless module. The single chip module includes an STM32F103 single chip microcomputer. The wireless module is a ZigBee module.

[0036] The data storage and management system includes a computer and management analysis software. The data storage and management system accepts the data from the data acquisition system and stores it in categories to display the data.

[0037] The building health analysis and early warning management system performs the actual analysis and processing according to the data of the data storage and management system, determines the location and extent of the damage, performs a table and graphical display, and displays the overall structure of the building structure to the staff. Local state performance, and analysis of future trends, graphical trends, assessment of structural reliability, early warning of safety hazards. Peer can also query historical data

Embodiment 2

[0039] The monitoring method for high-rise building health includes the following steps:

[0040] planning the installation position of the S1 sensor, and planning the installation position of the sensor according to the structural characteristics of the high-rise building, wherein the three-way ultrasonic anemometer, the propeller anemometer and the temperature and humidity meter are installed on the top layer of the structure of the high-rise building; The strong seismograph is installed on the base layer of the high-rise building; the static level is installed on the top and middle floors of the structure of the high-rise building; the beam tilt meter and the acceleration sensor are installed on the electromechanical layer of the high-rise building; The strain gauges are installed on the bottom and middle floors of high-rise buildings.

[0041] The S2 communication mode is selected, and the data collection system is connected to the data storage and management system by using a ZigBee wireless network;

[0042] S3 data collection, the data acquisition system is provided with multiple, the data acquisition system is connected with the adjacent sensor, the data acquisition system sends a detection instruction to the sensor, the sensor performs detection and transmits the detected data to The data acquisition system, the data acquisition system transmits the detected signal to the data storage and management system through the ZigBee, using the TCP/IP protocol;

[0043] The storage and display of the S4 data, the data storage and management system classifies and stores the information transmitted by the data collection system, that is, the related detection data is classified and stored according to different address information, and the data is displayed in the same manner;

[0044] S5 building health analysis and early warning tube, building health analysis and early warning management system based on data storage and management system data for real-time analysis and processing, to determine the location and extent of damage, table and graphical display, Show the staff the overall and local state performance of the building structure, and analyze the future trend of the same trend to display the trend of the structure, assess the reliability of the structure, and provide early warning of potential safety hazards.

Claims

Claim

[Claim 1] A high-rise building health monitoring system, comprising: a sensor system, a data acquisition system, a data storage and management system, and a building health analysis and early warning management system, wherein the sensor system is coupled to a data acquisition system, the data The acquisition system is coupled to the data storage and management system via a wired or wireless network, the data storage and management system being coupled to the building health analysis and early warning management system; the sensor system for environmental monitoring and load monitoring of tall buildings; The acquisition system sends an acquisition signal to the sensor system, receives the detection signal of the sensor system, and transmits it to the data storage and management system; the data storage and management system accepts the data of the data acquisition system and performs classified storage, and displays the data; The health analysis and early warning management system performs real-time analysis and processing according to the data of the data storage and management system, determines the location and extent of the damage, and displays the form and graphical display to show the staff the overall structure of the building structure. State performance, and analysis of future trends, graphical trends, assessment of structural reliability, early warning of safety hazards.

[Claim 2] The high-rise building health monitoring system according to claim 1, wherein the environmental monitoring includes wind load, ambient temperature and humidity, and earthquake; the load monitoring includes vertical uneven deformation of the inner and outer cylinders, and structure Top horizontal deformation and foundation settlement, interlayer displacement, key component and joint stress and structural vibration.

[Claim 3] The high-rise building health monitoring system according to claim 2, wherein the sensor system comprises a three-way ultrasonic anemometer, a propeller anemometer, a temperature and humidity meter, a strong vibration meter, a static level, Beam tilt meter, vibrating wire strain gauge and accelerometer.

[Claim 4] The high-rise building health monitoring system according to claim 3, wherein the three-way ultrasonic anemometer, the propeller anemometer, and the temperature and humidity meter are installed on a top layer of a high-rise building; The vibrometer is installed on the base layer of the high-rise building; the static level is installed on the top and middle floors of the structure of the high-rise building; the beam inclinometer and the acceleration sensor are installed on the electromechanical layer of the high-rise building; It is installed on the bottom and middle floors of high-rise buildings.

[Claim 5] The high-rise building health monitoring system according to claim 1, wherein the number According to the installation system, the acquisition system is provided according to the installation requirements of the sensor system. The data acquisition system includes an A/D conversion module and a transmission module both connected to the single chip module, and the transmission module includes a wireless module and/or an RS485 line.

[Claim 6] The high-rise building health monitoring system according to claim 5, wherein the single-chip machine module comprises an STM32F103 single-chip microcomputer.

[Claim 7] The high-rise building health monitoring system according to claim 5, wherein the wireless module comprises ZigBee or WiFi or GPRS/2G/3G/4G.

[Claim 8] The high-rise building health monitoring system according to claim 1, wherein the data storage and management system comprises a computer and management analysis software.

[Claim 9] The method for monitoring a high-rise building health monitoring system according to any one of claims 1 to 8, characterized in that it comprises the following steps:

Planning of the installation position of the S1 sensor, planning the installation position of the sensor according to the structural characteristics of the high-rise building, the three-way ultrasonic anemometer, the propeller anemometer and the temperature and humidity meter are all installed on the top layer of the structure of the high-rise building; The base layer installed in the high-rise building; the static level is installed on the top and middle floors of the structure of the high-rise building; the beam tilt meter and the acceleration sensor are installed on the electromechanical layer of the high-rise building; the vibrating wire strain gauge is installed At the bottom and middle floors of high-rise buildings;

The choice of S2 communication mode, using ZigBee wireless network to connect the data acquisition system with the data storage and management system;

S3 data acquisition, data acquisition system is provided, the data acquisition system is connected with adjacent sensors, the data acquisition system sends a detection instruction to the sensor, the sensor detects and transmits the detected data to the data acquisition system, and the data acquisition system will The detected signal is transmitted to the data storage and management system through the SIP/IP protocol through the Zi gBee; the storage and display of the S4 data, and the data storage and management system classifies and stores the information transmitted by the data acquisition system, that is, according to different address information. The relevant test data is classified and stored, and the data is displayed in the same manner;

S5 building health analysis and early warning tube, building health analysis and early warning management system based on data storage and management system data for real-time analysis and processing, to determine the occurrence of damage The degree and degree, the table and graphical display, show the overall and local state performance of the building structure to the staff, and analyze the future trend of the same trend to display the trend of the structure, assess the reliability of the structure, and provide early warning of potential safety hazards.