CN116611365B - Anti-seepage monitoring method and system for assembled building - Google Patents
Anti-seepage monitoring method and system for assembled building Download PDFInfo
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Abstract
The invention discloses an anti-seepage monitoring method and system for an assembled house building, which belong to the technical fields of intelligent buildings and intelligent operation and maintenance and comprise the following steps: building a CFD simulation model of the assembled house building, and performing simulation calculation; carrying out wind tunnel test on the assembled house building, and verifying the simulation calculation result; combining simulation calculation results, wind tunnel test results, local historical climate data and related data analysis of cracks generated by similar building structures to obtain positions needing antiseep monitoring, and arranging corresponding antiseep monitoring sensors; comprehensively analyzing the monitoring data monitored by the anti-leakage monitoring sensor and the various different data to obtain leakage early warning information; and building a BIM model of the assembled house building, and realizing real-time dynamic display. The leakage problem of the prefabricated house building can be monitored in real time, and the leakage event of the prefabricated house building can be effectively prevented, so that the living quality of the prefabricated house building is improved.
Description
Technical Field
The invention relates to the technical field of intelligent buildings and intelligent operation and maintenance, in particular to an anti-seepage monitoring method and system for an assembled house building.
Background
The current intelligent building and intelligent operation and maintenance basically apply the Internet of things technology to the building field, and the digital twin body is established by integrating BIM model, CFD simulation model and Internet of things data, so that a technical platform is provided for the intellectualization of the assembled building and the intellectualization of the operation and maintenance.
The assembled building is formed by carrying out a large amount of field operation work in the traditional building mode in a factory, processing and manufacturing building firmware and accessories (such as floors, wallboards, stairs, balconies and the like) in the factory, transporting to a building construction site, and assembling and installing on site in a reliable connection mode.
The fabricated building construction is formed by batch production in a factory and splicing in a construction site, so that spliced joints are necessarily left, and potential safety hazards are left if the joints are improperly treated.
The structural joint is a major concern for the fabricated building, the problem of leakage of the fabricated building is caused by poor treatment, the living quality of the fabricated building is reduced, the fabricated building is rapidly developed in China currently, and the problem of easy occurrence of the leakage of the building is a problem of easy occurrence quality of the fabricated building according to related information.
Disclosure of Invention
The invention aims to pay attention to structural joints of an assembled house building, prevent the assembled house building from leaking, ensure the living quality of the assembled house building and provide an anti-leakage monitoring method and system for the assembled house building.
In order to achieve the above object, the present invention provides the following technical solutions:
An anti-seepage monitoring method for an assembled house building comprises the following steps:
S1: establishing a CFD simulation model of the assembled building, performing simulation calculation on the CFD simulation model, and obtaining a simulation calculation result;
s2: carrying out wind tunnel test on the assembled house building, and verifying the simulation calculation result;
S3: combining the simulation calculation result, the wind tunnel test result, the local historical climate data and the related data analysis of cracks generated by similar building structures to obtain a position needing antiseep monitoring, and arranging a corresponding antiseep monitoring sensor;
S4: comprehensively analyzing the monitoring data acquired by the anti-leakage monitoring sensor, the simulation calculation result, the wind tunnel test result and the local meteorological data to obtain leakage early warning information;
s5: and building a BIM model of the assembled building construction, and fusing the monitoring data, the simulation calculation result, the wind tunnel test result and the local meteorological data to realize real-time dynamic display.
By adopting the technical scheme, the CFD simulation model, the wind tunnel test data, the monitoring data and the BIM model jointly establish a digital twin body, so that the data sharing of the full life cycle from design to construction to operation and maintenance of the fabricated building is realized, the visual intelligent capability is improved, an advanced digital visual intelligent scheme is provided for building intellectualization and operation and maintenance intellectualization, meanwhile, the leakage problem of the fabricated building can be monitored in real time, and the leakage event of the fabricated building is effectively prevented, thereby improving the living quality of the fabricated building.
As a preferred embodiment of the present invention, the CFD simulation model in step S1 includes an assembled building to be monitored and a building of a cell where the assembled building to be monitored is located.
As a preferred embodiment of the present invention, the simulation calculation result in the step S1 includes the flow condition of the wind field around the building to be monitored, and the structural deformation and stress of the building to be monitored caused by the flow condition.
As a preferable scheme of the invention, the step S2 performs a wind tunnel test on the fabricated building, verifies the simulation calculation result, and finally confirms the position where leakage may occur and needs to be monitored.
As a preferred embodiment of the present invention, the location where the leak protection monitoring is required in the step S3 includes: the structure is deformed relatively greatly, the junction between the assembly layer and the cast-in-situ layer, the wall surface with relatively strong windward rainfall and the roof with relatively large temperature influence are provided.
As a preferred embodiment of the present invention, the step S3 of arranging the corresponding anti-leakage monitoring sensor includes: arranging a fiber grating embedded strain gauge at a position where the structural deformation is large and cracks are easy to generate between the assembly layer and the cast-in-situ layer, and acquiring structural deformation data;
an optical fiber distributed temperature sensor is arranged on the wall surface with stronger windward rainfall and is used for collecting temperature data of the house wall body;
And the fiber bragg grating surface micro-displacement meter and the fiber bragg grating inclinometer are arranged on the roof and are respectively used for acquiring micro-displacement data and house settlement deformation data.
As a preferred embodiment of the present invention, the step S4 includes: and if the monitoring data are abnormal, carrying out correlation analysis on the monitoring data by combining the simulation calculation result, the wind tunnel test data and the local meteorological data, wherein the correlation analysis comprises whether the deformation of the relevant important parts is excessive to cause crack generation, whether the wall temperature is abnormal or not and weather conditions, if the correlation is higher, the monitoring assembly type building is wholly deformed, otherwise, the monitoring assembly type building is locally deformed, and finally determining the potential leakage occurrence position by combining the wall temperature data to obtain leakage early warning information.
As a preferred embodiment of the present invention, the local meteorological data includes: air temperature, wind direction, wind speed and rainfall.
On the other hand, the invention discloses an assembly type building anti-seepage monitoring system according to any one of the above assembly type building anti-seepage monitoring methods, which comprises a plurality of anti-seepage monitoring sensors, a weather station, an optical fiber demodulator host, a PC end and a mobile end, wherein the plurality of anti-seepage monitoring sensors are in communication connection with the optical fiber demodulator host through optical cables, and the optical fiber demodulator host and the weather station are in communication connection with the PC end and the mobile end;
The anti-leakage monitoring sensor is used for collecting the monitoring data in real time;
The optical fiber demodulator host is used for demodulating and processing the acquired data of the anti-seepage monitoring sensor;
The weather station is used for collecting the local weather data;
the PC end is used for establishing a CFD simulation model and a BIM model of the fabricated building, and the BIM model is used for expressing the structure of the fabricated building and the layout positions of a plurality of anti-seepage monitoring sensors;
the BIM model is used for loading simulation data, wind tunnel test data, various monitoring data and anti-leakage early warning data, and can be browsed at the mobile terminal.
By adopting the technical scheme, the BIM model and the CFD model are integrally built, the anti-seepage monitoring sensor is locally arranged at the position where the fabricated building is easy to leak, the simulation calculation result, the wind tunnel test result and the real-time monitoring data are visually displayed on the fabricated building BIM model and are compared and analyzed, the health condition of the fabricated building structure is evaluated, the fabricated building is prevented from leaking, the living quality of the fabricated building is improved, the system hardware investment is low, and the anti-seepage monitoring cost of the fabricated building is reduced.
As a preferred aspect of the present invention, the plurality of leakage prevention monitoring sensors includes: an optical fiber grating embedded strain gauge, an optical fiber grating inclinometer, an optical fiber grating surface micro displacement meter and an optical fiber distributed temperature sensor;
The fiber bragg grating embedded strain gauge is arranged at a position with larger structural deformation and a position at the juncture of the assembly layer and the cast-in-situ layer, the fiber bragg grating distributed temperature sensor is arranged on a wall surface with stronger windward rainfall, and the fiber bragg grating inclinometer and the fiber bragg grating surface micro-displacement meter are arranged on the roof.
Compared with the prior art, the invention has the beneficial effects that: the CFD simulation model, the wind tunnel test data, the monitoring data and the BIM model jointly establish a digital twin body, the data sharing of the whole life cycle from design to construction to operation and maintenance of the prefabricated house building is realized, the visual intelligent capability of the monitoring system is improved, an advanced digital visual intelligent scheme is provided for building intellectualization and operation and maintenance intellectualization, the BIM model and the CFD model are integrally established, anti-seepage monitoring sensors are arranged at the positions, where leakage easily occurs, of the prefabricated house building, on the whole, the simulation calculation result, the wind tunnel test data and the real-time monitoring data are visually displayed on the prefabricated house building BIM model and are compared and analyzed, the health condition of the prefabricated house building structure is evaluated, the leakage of the house building is prevented, the hardware investment of the system is low, and the anti-seepage monitoring cost of the prefabricated house building is reduced.
Drawings
FIG. 1 is a flow chart of an anti-seepage monitoring method for an assembled building according to the embodiment 1 of the invention;
FIG. 2 is a simulation diagram of the flow conditions of wind fields around the prefabricated building according to the method for monitoring leakage prevention of the prefabricated building according to the embodiment 1 of the present invention;
FIG. 3 is a wind tunnel test chart of an anti-seepage monitoring method for an assembled building according to the embodiment 1 of the invention;
FIG. 4 is a finite element simulation calculation result diagram of an assembled building according to the method for monitoring leakage prevention of the assembled building in example 1 of the present invention;
FIG. 5 is a BIM model diagram of an assembled building anti-leakage monitoring method according to example 1 of the present invention;
FIG. 6 is a diagram of the position of an anti-leakage monitoring sensor of an anti-leakage monitoring method for an assembled building according to embodiment 2 of the present invention;
Fig. 7 is a block diagram of an anti-leakage monitoring system for an assembled building according to embodiment 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Example 1
An anti-seepage monitoring method for an assembled house building, as shown in figure 1, comprises the following steps:
S1: establishing a CFD simulation model of the assembled building, performing simulation calculation on the CFD simulation model, and obtaining a simulation calculation result;
the CFD simulation model comprises an assembled building to be monitored and a building of a community where the assembled building to be monitored is located;
The simulation calculation result comprises the flowing condition of the wind field around the fabricated building to be monitored and the structural deformation and stress of the fabricated building to be monitored caused by the flowing condition, as shown in fig. 2 and 4 respectively;
s2: as shown in fig. 3, performing wind tunnel test on the fabricated building, and verifying the simulation calculation result;
S3: combining the simulation calculation result, the wind tunnel test result, the local historical climate data and the related data analysis of cracks generated by similar building structures to obtain a position needing antiseep monitoring, and arranging a corresponding antiseep monitoring sensor;
The location needing antiseep monitoring in step S3 includes: the structure is deformed relatively more, the junction of the assembly layer and the cast-in-situ layer is positioned, the wall surface with relatively stronger windward rainfall and the roof with larger temperature influence are provided;
The arrangement of the corresponding antiseep monitoring sensor comprises the following steps: arranging a fiber grating embedded strain gauge at a position where the structural deformation is large and cracks are easy to generate between the assembly layer and the cast-in-situ layer, and acquiring structural deformation data;
an optical fiber distributed temperature sensor is arranged on the wall surface with stronger windward rainfall and is used for collecting temperature data of the house wall body;
The roof is easy to be influenced by temperature to generate cracks, and the fiber bragg grating surface micro-displacement meter and the fiber bragg grating inclinometer are arranged on the roof and are respectively used for collecting micro-displacement data and house settlement deformation data.
S4: and comprehensively analyzing the monitoring data acquired by the anti-leakage monitoring sensor, the simulation calculation result, the wind tunnel test result and the local meteorological data to obtain leakage early warning information.
The step S4 includes: and if the monitoring data is abnormal, carrying out correlation analysis on various deformation data on the monitoring data by combining the simulation calculation result, the wind tunnel test data and the local meteorological data, wherein the correlation analysis comprises the steps of judging whether the deformation of the relevant important parts is excessive to cause crack generation, judging whether the temperature of the wall body has abnormal change and judging weather conditions, and finally determining the potential leakage occurrence position to obtain leakage early warning information.
S5: as shown in fig. 5, a BIM model of the fabricated building is built, and the above various different data are fused to realize real-time dynamic display.
The local meteorological data includes: air temperature, wind direction, wind speed and rainfall.
By adopting the technical scheme, the CFD simulation model, the wind tunnel test data, the monitoring data and the BIM model jointly establish a digital twin body, so that the data sharing of the full life cycle from design to construction to operation and maintenance of the fabricated building is realized, the visual intelligent capability is improved, an advanced digital visual intelligent scheme is provided for building intellectualization and operation and maintenance intellectualization, meanwhile, the leakage problem of the fabricated building can be monitored in real time, and the leakage event of the fabricated building is effectively prevented, thereby improving the living quality of the fabricated building.
Example 2
This embodiment is a specific embodiment of embodiment 1;
An engineering project comprises 13 houses and supporting facilities, wherein the height of the residential buildings is 49.95 meters, the ground is 16 layers, 1 layer or 2 layers of the ground are respectively arranged underground, and the whole building is a reinforced concrete shear wall structure and a piled raft foundation. The 1-2 layers on the ground are the reinforced areas of the cast-in-situ bottom layer, and the 3-16 layers are assembled structures. The application of the anti-seepage monitoring method for the assembled house building is illustrated by taking building No. 7 as an example, and the underground of building No. 7 is 2 floors. Finite element modeling and simulation are performed on the fabricated building structure, and as shown in fig. 4, simulation calculation shows that the stress is maximum in the third layer of the building structure, namely the first layer of the fabricated structure. At the tenth floor of the building structure, the inter-floor displacement angle is greatest. Thus, it is determined that the monitoring point is set at the two layers. As shown in fig. 6, an anti-leakage monitoring sensor is arranged at the monitoring points of the two layers.
The monitoring data of the assembled house building structure comprises house settlement, structural deformation, micro displacement, house wall temperature and the like, and once the monitoring data is abnormal, comprehensive analysis is carried out by combining the monitoring data monitored by the anti-seepage monitoring sensor, the simulation calculation result, the wind tunnel test result and the local meteorological data, and a house health state diagnosis mechanism is started.
Monitoring data are abnormal, such as abnormal temperature change of a house wall, firstly checking weather station data, excluding weather change influence, secondly checking house settlement and micro-displacement data and house structure deformation data, judging whether the house structure is wholly deformed or partially deformed, determining deformation positions, and early warning possible leakage of the house.
Example 3
An assembled building antiseep monitoring system according to the assembled building antiseep monitoring method of embodiment 1, as shown in fig. 7, includes a plurality of antiseep monitoring sensors, a weather station, an optical fiber demodulator host, a PC end and a mobile end, wherein the plurality of antiseep monitoring sensors are in communication connection with the optical fiber demodulator host through optical cables, and the optical fiber demodulator host and the weather station are in communication connection with the PC end and the mobile end;
The anti-leakage monitoring sensor is used for collecting the monitoring data in real time;
The optical fiber demodulator host is used for demodulating and processing the acquired data of the anti-seepage monitoring sensor;
The weather station is used for collecting the local weather data;
the PC end is used for establishing a CFD simulation model and a BIM model of the fabricated building, and the BIM model is used for expressing the structure of the fabricated building and the layout positions of the anti-seepage monitoring sensors.
Simulation data, wind tunnel test data, various monitoring data and anti-leakage early warning data can be loaded on the BIM model, and the BIM model can be browsed at the mobile terminal.
A plurality of the leakage prevention monitoring sensors include: an optical fiber grating embedded strain gauge, an optical fiber grating inclinometer, an optical fiber grating surface micro displacement meter and an optical fiber distributed temperature sensor;
The fiber bragg grating embedded strain gauge is arranged at a position with larger structural deformation and a position at the juncture of the assembly layer and the cast-in-situ layer, the fiber bragg grating distributed temperature sensor is arranged on a wall surface with stronger windward rainfall, and the fiber bragg grating inclinometer and the fiber bragg grating surface micro-displacement meter are arranged on the roof of a building.
By adopting the technical scheme, the BIM model and the CFD model are integrally built, the anti-seepage monitoring sensor is locally arranged at the position where the fabricated building is easy to leak, the simulation calculation result, the wind tunnel test result and the real-time monitoring data are visually displayed on the fabricated building BIM model and are compared and analyzed, the health condition of the fabricated building structure is evaluated, the fabricated building is prevented from leaking, the living quality of the fabricated building is improved, the system hardware investment is low, and the anti-seepage monitoring cost of the fabricated building is reduced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The anti-seepage monitoring method for the assembled house building is characterized by comprising the following steps of:
S1: establishing a CFD simulation model of the assembled building, performing simulation calculation on the CFD simulation model, and obtaining a simulation calculation result;
s2: carrying out wind tunnel test on the assembled house building, and verifying the simulation calculation result;
S3: combining the simulation calculation result, the wind tunnel test result, the local historical climate data and the related data analysis of cracks generated by similar building structures to obtain a position needing antiseep monitoring, and arranging a corresponding antiseep monitoring sensor;
S4: comprehensively analyzing the monitoring data acquired by the anti-leakage monitoring sensor, the simulation calculation result, the wind tunnel test result and the local meteorological data to obtain leakage early warning information;
If the monitoring data are abnormal, carrying out correlation analysis on the monitoring data by combining the simulation calculation result, the wind tunnel test data and the local meteorological data, wherein the correlation analysis comprises whether the deformation of the relevant important parts is excessive to cause crack generation, whether the wall temperature is abnormal or not and weather conditions, if the correlation is higher, the assembled house building is integrally deformed, otherwise, the assembled house building is locally deformed, and finally determining the potential leakage position by combining the wall temperature data to obtain leakage early warning information;
s5: and building a BIM model of the assembled building construction, and fusing the monitoring data, the simulation calculation result, the wind tunnel test result and the local meteorological data to realize real-time dynamic display.
2. The method for monitoring leakage prevention of prefabricated building according to claim 1, wherein the CFD simulation model in the step S1 includes the prefabricated building to be monitored and the building of the cell where the prefabricated building to be monitored is located.
3. The method according to claim 2, wherein the simulation calculation result in step S1 includes the flow condition of the wind field around the building to be monitored and the structural deformation and stress of the building to be monitored caused by the flow condition.
4. The method for anti-leakage monitoring of fabricated building according to claim 1, wherein in step S2, the fabricated building is subjected to wind tunnel test, and the simulation calculation result is verified, so as to finally confirm the position where leakage can occur and needs to be monitored.
5. The method for monitoring leakage prevention of fabricated building according to claim 1, wherein the location to be monitored for leakage prevention in step S3 comprises: the structure is deformed relatively greatly, the junction of the assembly layer and the cast-in-situ layer, the wall surface with relatively strong windward rainfall and the roof with relatively large temperature influence.
6. The method for monitoring leakage prevention of fabricated building according to claim 5, wherein the step S3 of arranging the corresponding leakage prevention monitoring sensor comprises: arranging a fiber grating embedded strain gauge at a position where the structural deformation is large and cracks are easy to generate between the assembly layer and the cast-in-situ layer, and acquiring structural deformation data;
an optical fiber distributed temperature sensor is arranged on the wall surface with stronger windward rainfall and is used for collecting temperature data of the house wall body;
And the fiber bragg grating surface micro-displacement meter and the fiber bragg grating inclinometer are arranged on the roof and are respectively used for acquiring micro-displacement data and house settlement deformation data.
7. A method of leak-proof monitoring of fabricated building construction according to claim 1, wherein the local meteorological data comprises: air temperature, wind direction, wind speed and rainfall.
8. An assembled building anti-seepage monitoring system according to an assembled building anti-seepage monitoring method of any one of claims 1-7, which is characterized by comprising a plurality of anti-seepage monitoring sensors, a weather station, an optical fiber demodulator host, a PC end and a mobile end, wherein the plurality of anti-seepage monitoring sensors are in communication connection with the optical fiber demodulator host through optical cables, and the optical fiber demodulator host and the weather station are in communication connection with the PC end and the mobile end;
The anti-leakage monitoring sensor is used for collecting the monitoring data in real time;
The optical fiber demodulator host is used for demodulating and processing the acquired data of the anti-seepage monitoring sensor;
The weather station is used for collecting the local weather data;
the PC end is used for establishing a CFD simulation model and a BIM model of the fabricated building, and the BIM model is used for expressing the structure of the fabricated building and the layout positions of a plurality of anti-seepage monitoring sensors;
the BIM model is used for loading simulation data, wind tunnel test data, various monitoring data and anti-leakage early warning data, and can be browsed at the mobile terminal.
9. The fabricated building construction leakage prevention monitoring system according to claim 8, wherein a plurality of the leakage prevention monitoring sensors comprises: an optical fiber grating embedded strain gauge, an optical fiber grating inclinometer, an optical fiber grating surface micro displacement meter and an optical fiber distributed temperature sensor;
The fiber bragg grating embedded strain gauge is arranged at a position with larger structural deformation and a position at the juncture of the assembly layer and the cast-in-situ layer, the fiber bragg grating distributed temperature sensor is arranged on a wall surface with stronger windward rainfall, and the fiber bragg grating inclinometer and the fiber bragg grating surface micro-displacement meter are arranged on the roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310585736.9A CN116611365B (en) | 2023-05-23 | 2023-05-23 | Anti-seepage monitoring method and system for assembled building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310585736.9A CN116611365B (en) | 2023-05-23 | 2023-05-23 | Anti-seepage monitoring method and system for assembled building |
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| CN116611365A CN116611365A (en) | 2023-08-18 |
| CN116611365B true CN116611365B (en) | 2024-05-03 |
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| CN202310585736.9A Active CN116611365B (en) | 2023-05-23 | 2023-05-23 | Anti-seepage monitoring method and system for assembled building |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157753A (en) * | 2015-09-15 | 2015-12-16 | 南阳理工学院 | Wireless remote monitor civil engineering building monitoring system |
| CN113642069A (en) * | 2021-07-22 | 2021-11-12 | 中南建筑设计院股份有限公司 | Building wind load rapid iteration design method based on BIM and heterogeneous system |
| KR20220092044A (en) * | 2020-12-24 | 2022-07-01 | (주)미래환경플랜건축사사무소 | Computational fluid dynamics model design system and method using building informaiton model |
| CN115146359A (en) * | 2022-07-15 | 2022-10-04 | 中南建筑设计院股份有限公司 | Large-span roof drainage performance calculation method considering wind-rain coupling effect |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157753A (en) * | 2015-09-15 | 2015-12-16 | 南阳理工学院 | Wireless remote monitor civil engineering building monitoring system |
| KR20220092044A (en) * | 2020-12-24 | 2022-07-01 | (주)미래환경플랜건축사사무소 | Computational fluid dynamics model design system and method using building informaiton model |
| CN113642069A (en) * | 2021-07-22 | 2021-11-12 | 中南建筑设计院股份有限公司 | Building wind load rapid iteration design method based on BIM and heterogeneous system |
| CN115146359A (en) * | 2022-07-15 | 2022-10-04 | 中南建筑设计院股份有限公司 | Large-span roof drainage performance calculation method considering wind-rain coupling effect |
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