CN-116558573-B - Building damping structure early warning method and system

CN116558573BCN 116558573 BCN116558573 BCN 116558573BCN-116558573-B

Abstract

The invention discloses a building damping structure early warning method and system, wherein the method comprises the steps of S1 collecting first parameters and second parameters of a damping structure, S2 judging whether the damping structure has failure hidden danger one by one, if yes, giving an alarm, if not, executing step S3, S3 respectively obtaining average values and standard deviations of stress parameters and displacement parameters of the damping structure with the same type, S4 judging whether the damping structure has failure hidden danger, if yes, giving an alarm, if not, executing step S5, calculating the aging failure degree of the damping structure, S6 judging whether the aging failure degree of the damping structure reaches a set value, if yes, giving an alarm, if not, executing step S7, comprehensively evaluating the damping system of a building, S8 judging whether the damping system of the building has integral failure, if not, executing step S9, S9 waiting for a set time length, and executing step S1. The invention can monitor and early warn the damping device and timely acquire the hidden trouble of the damping structure.

Inventors

GUO WENQI
YANG FAN
LIU HEHUA
SHI CHANGSHAN
ZHAO QIAN
LIU WEI

Assignees

广信检测认证集团有限公司

Dates

Publication Date: 20260512
Application Date: 20230612

Claims (7)

1. A building shock absorption structure early warning method is characterized by comprising the following steps, S1, collecting first parameters and second parameters of a damping structure on the same building, wherein the first parameters comprise stress parameters and displacement parameters, the second parameters comprise temperature, humidity and apparent pH value, the stress parameters comprise tensile force or pressure born by the damping structure in one or more corresponding directions, and the displacement parameters comprise the elongation or compression amount of an elastic element on the damping structure in the axial direction and the displacement of the damping structure in the horizontal direction; S2, judging whether each corresponding shock absorption structure has failure hidden danger one by one according to the first parameters, if so, giving an alarm and executing S3; s3, respectively calculating the average value and standard deviation of the stress parameter and the displacement parameter of the shock-absorbing structure of the same type acquired at the time, wherein the stress parameter used here is to decompose the stress generated by deformation of the elastic element into a coordinate system of three directions, namely, the sum of the stresses of the three directions Wherein the method comprises the steps of Is the component force of the stress of the ith elastic element on a certain shock absorbing structure on the x axis, A component force of stress of an ith elastic element on a certain shock absorption structure on a y axis; Before calculating the average value, converting the stress parameter and the design stress relation of the corresponding position, wherein the conversion formula is as follows: Wherein, the stress sum of the ith damping structure of F s,i in the transverse, longitudinal and vertical directions is F c,i , the processed stress parameter is F c,0 , the design stress of the damping structure to be calculated is F s,0 , and the design stress of the selected damping structure is calculated; S4, judging whether each corresponding shock absorption structure has failure hidden danger one by one according to the stress parameters and the displacement parameters, if so, giving an alarm and executing the step S5, otherwise, executing the step S5; s5, calculating the aging failure degree of each shock absorption structure; s6, judging whether the aging failure degree of each shock absorption structure reaches a set value one by one, if so, giving an alarm and executing the step S7; S7, comprehensively evaluating a damping system of the building according to the average value of the stress parameters, the standard deviation of the stress parameters, the average value of the displacement parameters, the standard deviation of the displacement parameters and the aging failure degree; s8, judging whether the whole damping system of the building fails according to the comprehensive evaluation result, if so, giving an alarm and executing the step S9; s9, waiting for a set time length, and executing the step S1; the calculation formula of the aging failure degree of each shock absorption structure is as follows: Wherein b j is the aging failure degree of the j-th numbered damping structure, t 0 is the time interval of two adjacent acquisitions, F T (x) is the time-varying function of the temperature obtained by fitting the acquired temperature values, F w (x) is the time-varying function of the humidity obtained by fitting the acquired humidity values, F ph (x) is the time-varying function of the pH value obtained by fitting the acquired pH value, F T (f T (x) is the failure rate of the damping structure at F T (x), F w (f w (x) is the failure rate of the damping structure at F w (x) humidity, and F ph (f ph (x) is the failure rate of the damping structure at F ph (x).
2. The method for warning a shock absorbing structure of a building according to claim 1, wherein the step S1 comprises the following steps, S11, collecting first parameters and second parameters of all damping structures on the same building; S12, recording acquisition time; s13, classifying the acquired first parameters and second parameters according to the acquisition time and the damping structures with corresponding numbers so as to obtain the first parameters and the second parameters of different damping structures at the same moment.
3. The method for warning a shock absorbing structure of a building according to claim 2, wherein the step S2 comprises the following steps, S21, obtaining stress parameters and corresponding displacement parameters of each elastic element on each shock absorption structure; S22, calculating the elastic modulus corresponding to each elastic element one by one; S23, judging whether each elastic modulus is in a preset elastic modulus range, if so, judging that no failure exists, executing the step S3, otherwise, judging that hidden danger of failure exists, giving an alarm by taking the data acquisition time, the label corresponding to the shock absorption structure and the elastic element corresponding to the shock absorption structure as display contents, and executing the step S3.
4. The method for warning a shock absorbing structure of a building according to claim 1, wherein step S7 comprises, S71, calculating the ratio of the standard deviation of stress parameters of the damping structure with the same model to the average value of the stress parameters; S72, calculating the ratio of the standard deviation of the displacement parameters of the damping structure with the same model to the average value of the displacement parameters; s73, comprehensively evaluating the damping system of the building according to the ratio of the standard deviation of the stress parameters of the damping structure with the same model to the average value of the stress parameters, the ratio of the standard deviation of the displacement parameters of the damping structure with the same model to the average value of the displacement parameters and the aging failure degree.
5. The method for pre-warning a shock absorbing structure of a building according to claim 4, wherein step S73 comprises, S731, obtaining a first score from a set first score table according to the ratio of the standard deviation of stress parameters of the same type of damping structure to the average value of the stress parameters; S732, obtaining a second score from a set second score table according to the ratio of the standard deviation of the displacement parameters of the damping structure with the same model to the average value of the displacement parameters; s733, obtaining a third score from a preset third score table according to the aging failure degree; and S734, the first score, the second score and the third score are weighted and summed, and the damping system of the building is comprehensively evaluated according to the calculation result.
6. An early warning system for an early warning method for a shock absorbing structure of a building according to any one of claims 1 to 5, characterized by comprising, The force sensor is arranged on the elastic element of the shock absorption structure and is used for collecting stress of the corresponding elastic element at each set time interval; the displacement sensor is arranged on the damping structure and is used for detecting the variation of the spring element of the damping structure and the displacement of the damping structure in the horizontal direction; The temperature sensor is arranged on the damping structure and used for detecting the temperature of the damping structure; the humidity sensor is arranged on the damping structure and used for detecting the ambient humidity of the damping structure; The controller is electrically connected with the force sensor, the displacement sensor, the temperature sensor and the humidity sensor and is used for controlling the force sensor, the displacement sensor, the temperature sensor and the humidity sensor to acquire at intervals; The controller is used for judging whether each shock absorption structure has failure hidden trouble according to detection results of the force sensor, the displacement sensor, the temperature sensor and the humidity sensor, and sending an alarm instruction according to the judgment results; And the networking module is electrically connected with the controller and used for uploading the detection result and the alarm instruction to the upper computer and/or the server through a network.
7. The system of claim 6, wherein the host computer or the server is configured to calculate the aging failure degree according to the detection results of the force sensor, the displacement sensor, the temperature sensor and the humidity sensor, and perform comprehensive evaluation on the damping system of the building.

Description

Building damping structure early warning method and system Technical Field The invention relates to the technical field of building monitoring, in particular to a building damping structure early warning method and system. Background In order to cope with the influence of geological disasters such as earthquakes, it is necessary to perform earthquake-resistant and shock-insulating design on buildings. In the prior art, the shock absorbing structure is also different for different positions of the building. For example, for the main body part of a building, an anti-seismic support is usually provided at the bottom. Some of the shock-resistant supports are spherical shock-absorbing and isolating supports, such as the spherical shock-absorbing and isolating supports disclosed in patent publication No. CN216515104U, and some of the shock-resistant supports are shock-isolating structures formed by vulcanizing metal plates and rubber into a whole, such as the basic shock-isolating structures disclosed in patent publication No. CN 103717939B. For hanging structures such as ventilation pipes, an anti-seismic hanger, such as the anti-seismic hanger disclosed in CN218644958U, is required. In practice, in a certain area, earthquakes do not occur frequently. The anti-seismic support and the anti-seismic hanging frame are subjected to stress at any time. The key to its functioning, whether it be an anti-seismic support or an anti-seismic hanger, is the elastic element therein, typically a spring or a rubber member. Under the condition of long-term compression, the elastic element is easy to fail and deform, and particularly under the conditions of high temperature, high humidity, strong acidity or strong alkalinity, the elastic element can accelerate aging failure and deformation. When part of the damping structure fails, the earthquake-proof effect of the whole building is greatly reduced. Meanwhile, on the same building, different damping structures have certain cooperative action requirements, and the same building should have a coordinated stress relationship and a lateral displacement relationship among a plurality of anti-seismic supports. That is, in some cases, although each anti-seismic support is capable of satisfying the requirements individually, the lateral displacement between the different anti-seismic supports is inconsistent due to uneven stress distribution, so that additional stress is concentrated inside the building, resulting in the existence of a safety hazard. How to find out the failure risk of a single shock-absorbing structure and the potential safety hazard caused by the stress incompatibility among a plurality of shock-absorbing components with cooperative action on the same building in time is one of the important problems to be solved in the field. Disclosure of Invention The invention aims to provide a building damping structure early warning method and system, which are used for solving the defects in the prior art, and can monitor and early warn a damping device so as to acquire failure hidden dangers in the damping device in time. The invention provides a building damping structure early warning method, which comprises the following steps, S1, collecting first parameters and second parameters of a damping structure on the same building, wherein the first parameters comprise stress parameters and displacement parameters, and the second parameters comprise temperature, humidity and apparent pH value; S2, judging whether each corresponding shock absorption structure has failure hidden danger one by one according to the first parameters, if so, giving an alarm and executing S3; s3, respectively calculating an average value and a standard deviation of the stress parameter and the displacement parameter of the shock-absorbing structure of the same model acquired at the time; S4, judging whether each corresponding shock absorption structure has failure hidden danger one by one according to the stress parameters and the displacement parameters, if so, giving an alarm and executing the step S5, otherwise, executing the step S5; s5, calculating the aging failure degree of each shock absorption structure; s6, judging whether the aging failure degree of each shock absorption structure reaches a set value one by one, if so, giving an alarm and executing the step S7; S7, comprehensively evaluating a damping system of the building according to the average value of the stress parameters, the standard deviation of the stress parameters, the average value of the displacement parameters, the standard deviation of the displacement parameters and the aging failure degree; s8, judging whether the whole damping system of the building fails according to the comprehensive evaluation result, if so, giving an alarm and executing the step S9; s9, waiting for a set time length, and executing the step S1. The building damping structure early warning method as described above, wherein optionally, the stress paramete