CN117309060A - Building curtain wall structure performance monitoring system based on cloud computing - Google Patents
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Abstract
The invention discloses a building curtain wall structure performance monitoring system based on cloud computing. The building curtain wall structure performance monitoring system based on cloud computing comprises a structure performance monitoring raw data preprocessing module, a temperature and humidity monitoring module, a wind pressure load monitoring module, a stress and strain monitoring module, a displacement measurement monitoring module, a material structure correction module, an extreme weather correction module, a comprehensive performance monitoring module and a performance monitoring display terminal. According to the invention, the comprehensive performance monitoring is carried out on the building curtain wall structure performance monitoring by the factors of temperature and humidity, wind pressure load, stress and strain, displacement measurement, material structure and extreme weather, so that the comprehensive accuracy of the building curtain wall structure performance monitoring system is effectively improved, and the problem of insufficient comprehensive accuracy on the building curtain wall structure performance monitoring in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of building structure monitoring, in particular to a building curtain wall structure performance monitoring system based on cloud computing.
Background
With the development of cloud computing, the building structure monitoring system has wide application prospects in the aspects of real-time monitoring, safety evaluation, maintenance optimization, energy conservation and sustainability, city planning, intelligent maintenance and the like, improves the safety, sustainability and intelligent degree of a building, and provides stronger support for the safety and sustainability of a building structure.
The existing building curtain wall structure performance monitoring system based on cloud computing is realized by the following technology: sensor technology, various sensors can be used to acquire real-time data of the structure, so that various parameters of the curtain wall structure can be monitored more accurately and reliably; the internet of things technology can realize real-time data acquisition, transmission and remote monitoring; the cloud computing technology provides powerful computing and storage capacity, and can utilize algorithms and models on a cloud computing platform to process, analyze and model data so as to evaluate the performance of the curtain wall structure and provide early warning; the big data analysis technology can discover modes from data, predict the behaviors and faults of the structure and provide timely structural health condition assessment by utilizing the technologies of data mining, machine learning, artificial intelligence and the like; and the visualization technology is used for visually presenting the complex structure data by using a graphical interface and a visualization mode, so that a user can intuitively understand and analyze the performance of the structure.
For example, bulletin numbers: a building performance assessment method and system based on structural health monitoring data, as advertised by CN110006676B, comprising: acquiring response parameters of the building structure; acquiring a numerical range of building structure response parameters corresponding to building performance; and comparing the building structure response parameter with the numerical range of the building structure response parameter corresponding to the building performance to calibrate the building performance. According to the invention, the building performance, namely the building damage grade, can be marked by utilizing the building structure response parameters detected by the building health monitoring system in the prior art, acquiring the numerical range information of the building structure response parameters corresponding to the building performance through the existing specifications and the instruction files, and judging the numerical range of the acquired building structure response parameters, thereby realizing comprehensive evaluation of the health condition of the building structure.
For example, bulletin numbers: a method and apparatus for evaluating security performance of a building, which are disclosed in CN113158293B, comprising: monitoring a plurality of preset positions of a building to obtain deformation data of the preset positions; building a finite element model for simulating the building according to the construction drawings of the building at a plurality of preset positions; inputting deformation data and building parameters of a plurality of preset positions into a finite element model, outputting building state information, restoring the current degradation state of the building in the finite element model according to the expansion rate in the building parameters, and detecting the accuracy of the finite element model by utilizing on-site sampling of the building; and evaluating the safety performance of the building according to the building state information.
However, in the process of implementing the technical scheme of the invention in the embodiment of the application, the inventor of the application finds that at least the following technical problems exist in the above technology:
in the prior art, the comprehensive monitoring system for the performance of the building curtain wall structure is insufficient in monitoring the factors in various aspects, so that the problem of insufficient comprehensive accuracy in monitoring the performance of the building curtain wall structure exists.
Disclosure of Invention
According to the building curtain wall structure performance monitoring system based on cloud computing, the problem that comprehensive accuracy of building curtain wall structure performance monitoring is insufficient in the prior art is solved, and comprehensive accuracy of the building curtain wall structure performance monitoring system is effectively improved.
The embodiment of the application provides a building curtain wall structure performance monitoring system based on cloud computing, which comprises: the building curtain wall structure performance monitoring system based on cloud computing is characterized by comprising a structure performance monitoring original data preprocessing module, a temperature and humidity monitoring module, a wind pressure load monitoring module, a stress and strain monitoring module, a displacement measurement monitoring module, a material structure correction module, an extreme weather correction module, a comprehensive performance monitoring module and a performance monitoring display terminal; the structural performance monitoring original data preprocessing module is used for acquiring and preprocessing the original data of each aspect of the structural performance monitoring factors to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set; the temperature and humidity monitoring module is used for evaluating the performance of the building curtain wall structure according to the temperature and humidity sub-data set to obtain a temperature and humidity evaluation index; the wind pressure load monitoring module is used for evaluating the performance of the building curtain wall structure according to the wind pressure load carrier data set to obtain a wind pressure load evaluation index; the stress-strain monitoring module is used for evaluating the performance of the building curtain wall structure according to the stress-strain sub-data set to obtain a stress-strain evaluation index; the displacement measurement monitoring module is used for evaluating the performance of the building curtain wall structure according to the displacement measurement sub-data set to obtain a displacement measurement evaluation index; the material structure correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain a material structure correction index; the extreme weather correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain an extreme weather correction index; the comprehensive performance monitoring module is used for performing comprehensive performance monitoring on the building curtain wall structure performance monitoring according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index to obtain a comprehensive performance monitoring coefficient; the performance monitoring display terminal is used for comprehensively displaying performance monitoring results.
Further, the specific process of acquiring the original data of each aspect of factor for monitoring the structural performance and preprocessing is as follows: the method comprises the steps of obtaining primary data of all aspects of structural performance monitoring factors of a building curtain wall, extracting the primary data of all aspects of structural performance monitoring factors of the building curtain wall to obtain a structural performance monitoring primary data set, evaluating data white noise of the structural performance monitoring primary data set to obtain a structural performance monitoring primary data set white noise evaluation value, comparing the structural performance monitoring primary data set white noise evaluation value with a corresponding set structural performance monitoring primary data set white noise evaluation value, reserving corresponding structural performance monitoring primary data within an error allowable range, repeating the process on the primary data of all the structural performance monitoring primary data sets, merging all reserved primary data to obtain an effective structural performance monitoring data set, and classifying the effective structural performance monitoring data set to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set.
Further, the specific process of obtaining the temperature and humidity evaluation index is as follows: obtaining ambient temperature from temperature and humidity sub-data set Ambient humidity->And comprehensive waterproof Property->And obtaining the temperature and humidity evaluation index according to the specific calculation formula>The specific calculation formula is->Wherein->Representing a predefined coefficient of thermal expansion->Representing a predefined coefficient of thermal stress variation->Representing predefined comprehensive waterproof performance standard value->An influence matching factor representing the ratio of the ambient humidity to the integrated waterproof property and the predefined integrated waterproof property standard value,/->Corrosion oxidation coefficient indicating ambient humidity match, +.>Representing a setup buildInfluence matching factors corresponding to different types of building curtain wall structure performances>The negative influence coefficient of the mutual superposition of the environment temperature, the environment humidity and the comprehensive waterproof performance is represented.
Further, the specific process of obtaining the wind pressure load evaluation index is as follows: obtaining predefined wind pressure load fatigue performance from wind pressure load data setActual wind pressure load distribution coefficient->Actual structural strength->And actual structural stability->Is provided with->Equal to the wind pressure load evaluation comparison value, the specific comparison formula is +.>Wherein->、/>And->Respectively representing an actual wind pressure load distribution coefficient safety standard value, a predefined wind pressure load fatigue performance safety standard value and an actual structural strength safety standard value, < - >And->Respectively representing a predefined wind pressure load fatigue performance limit value and an actual wind pressure load distribution coefficient limit value,/or%>And->Respectively representing the set actual wind pressure load distribution coefficient and the set influence matching factor corresponding to the predefined wind pressure load fatigue performance, < >>A matching factor representing a predefined wind pressure load compression factor, < >>Represents natural constant, and accordingly obtains wind pressure load evaluation index +_through specific calculation formula>The specific calculation formula is that>，When->，/>Wherein->And the influence matching factor of the wind pressure load evaluation comparison value and the actual structural stability is represented. Further, the specific process of obtaining the stress-strain evaluation index is as follows: obtaining a predefined structural stiffness coefficient from the stress-strain sub-data set>Predefined stress fatigue coefficient->Predefined strain stability->And nature of the actual natural strain strength->And obtaining the stress-strain evaluation index +.>The specific calculation formula isWherein->And->Weight factors corresponding to the predefined strain stability and the actual natural strain strength properties, respectively, +.>Superimposed negative influence coefficient representing predefined strain stability and actual natural strain strength properties, +. >Correction factors representing the predefined structural stiffness coefficient corresponding to predefined strain stability and actual natural strain strength properties +.>Representing a predefined stress fatigue coefficient standard value, < >>Representing a correction factor for the predefined stress fatigue coefficient versus stress strain.
Further, the specific process of obtaining the displacement measurement evaluation index is as follows: obtaining actual displacement measurement matching coefficients from the displacement measurement sub-data setActual sealing Property->Mechanical Properties of the actual Structure->And predefined design visual effects->And obtaining a displacement measurement evaluation index +.>The specific calculation formula isWherein->And->Representing maximum actual sealing performance and minimum actual sealing performance, respectively,/->Indicating that setting the difference corresponding to the actual sealing performance affects the matching factor,/->And the joint influence matching factor corresponding to the maximum practical sealing performance and the practical structural mechanical performance is set.
Further, the specific process for obtaining the material structure correction index is as follows: obtaining material structure correction matching coefficients from the structural property correction sub-data setPredefined processibility coefficient->And a predefined anti-aging coefficient->And obtaining the material structure correction index according to the calculation formula >The specific calculation formula is->Wherein-> Weight factors corresponding to the predefined machinability and ageing resistance, respectively, are +.>A joint correction factor representing a predefined machinability factor and a predefined ageing resistance factor,>representing a predefined machinability factor, a predefined ageing resistance factor, an actual sealing performance and a predefined strain stability superposition influence factor,/->Indicating the actual sealing performance->And predefined strain stability->Is added to the negative influence factor.
Further, the specific process of obtaining the extreme weather correction index is as follows: obtaining extreme weather correction matching coefficients from extreme weather correction sub-data setsAnd the coefficient of influence of the freeze thawing cycle->And obtaining the extreme weather correction index +.>The specific calculation formula is->Wherein->And->Weight factors corresponding to the weight factors and the weight factors corresponding to the actual sealing performance, respectively representing the combination of the predefined thermal expansion coefficient and the predefined thermal stress change coefficient, +.>Superimposed influencing factors representing the coefficient of influence of the freeze-thaw cycle, the actual sealing performance, the predefined coefficient of thermal expansion and the predefined coefficient of thermal stress variation, +.>And the superimposed negative influence coefficients of the ice melting cycle influence coefficient, the actual sealing performance, the predefined thermal expansion coefficient, the predefined thermal stress change coefficient and the actual wind pressure load distribution coefficient are represented.
Further, the specific process for obtaining the comprehensive performance monitoring coefficient is as follows: acquiring a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress and strain evaluation index, a displacement measurement evaluation index, a material structure correction index and an extreme weather correction index, and obtaining a comprehensive performance monitoring coefficient according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index through a calculation formulaThe specific calculation formula isWherein->、/>And->Respectively representing coordination weight factors corresponding to the stress-strain evaluation index, the displacement measurement evaluation index and the wind pressure load evaluation index, < ->Indicating the corresponding temperature and humidity evaluation index at the set temperature and humidity,/->And the corresponding comprehensive performance adjusting factor is used for indicating the ratio of the temperature and humidity evaluation index to the corresponding temperature and humidity evaluation index under the set temperature and humidity.
Further, the specific process of the performance monitoring display terminal for comprehensively displaying the performance monitoring result is as follows: comparing the comprehensive performance monitoring coefficient with a predefined comprehensive performance monitoring coefficient threshold value, if the comprehensive performance monitoring coefficient is within a predefined error allowable range, marking a monitoring system corresponding to the comprehensive performance monitoring coefficient as a safety monitoring system, otherwise, comparing and calculating a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress and strain evaluation index, a displacement measurement evaluation index, a material structure correction index and an extreme weather correction index with corresponding maximum predefined index threshold values respectively, if each evaluation index exceeds the corresponding maximum predefined coefficient threshold value, sequentially traversing each factor data for structural performance monitoring in an evaluation index corresponding sub-data set exceeding the threshold value, and when each factor data exceeds the corresponding threshold value, marking the factor data with red immediately, checking specific factors corresponding to structural performance monitoring, and sequentially checking and adjusting all specific factors exceeding the threshold value.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. the structural performance monitoring system has the advantages that the structural performance monitoring system monitors the structural performance of the building curtain wall through the structural performance monitoring raw data preprocessing module, the temperature and humidity monitoring module, the wind pressure load monitoring module, the stress and strain monitoring module, the displacement measurement monitoring module, the material structure correction module, the extreme weather correction module, the comprehensive performance monitoring module and the performance monitoring display terminal, so that the comprehensive accuracy of the structural performance monitoring system of the building curtain wall is effectively improved, and the problem that the comprehensive accuracy of the structural performance monitoring system of the building curtain wall is insufficient in the prior art is solved;
2. the comprehensive performance monitoring module monitors the comprehensive performance of the building curtain wall structure according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index to obtain a comprehensive performance monitoring coefficient, so that the reliability and the overall performance of the curtain wall structure are evaluated, and the scientificity of improving the overall performance of the building curtain wall structure performance monitoring is realized;
3. The performance monitoring result is comprehensively displayed through the performance monitoring display terminal, the comprehensive performance monitoring coefficient is compared with a predefined comprehensive performance monitoring coefficient threshold value, and the comparison is sequentially traversed according to specific conditions until the evaluation condition of the monitoring factors corresponding to all data is determined, the highlighting is carried out according to the evaluation condition, and specific factors exceeding the threshold value are adjusted, so that the adjusted structure is ensured to meet applicable standards and specifications, and further the long-term stable maintenance of the performance of the building curtain wall structure in a predefined range is realized.
Drawings
Fig. 1 is a schematic structural diagram of a system for monitoring performance of a building curtain wall structure based on cloud computing according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a wind pressure load evaluation index according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of obtaining a comprehensive performance monitoring coefficient according to an embodiment of the present application.
Description of the embodiments
According to the building curtain wall structure performance monitoring system based on cloud computing, the problem that comprehensive accuracy is insufficient in monitoring of the building curtain wall structure performance in the prior art is solved, comprehensive performance monitoring is conducted on the building curtain wall structure performance through factors of temperature and humidity, wind pressure load, stress strain, displacement measurement, material structure and extreme weather, and further comprehensive accuracy of the building curtain wall structure performance monitoring system is effectively improved.
The technical scheme in this application embodiment is for solving above-mentioned existence and to the problem that building curtain wall structure performance monitoring comprehensive accuracy is not enough, and the overall thinking is as follows:
the structural performance of the building curtain wall is monitored through the structural performance monitoring raw data preprocessing module, the temperature and humidity monitoring module, the wind pressure load monitoring module, the stress and strain monitoring module, the displacement measurement monitoring module, the material structure correction module, the extreme weather correction module, the comprehensive performance monitoring module and the performance monitoring display terminal, and the comprehensive performance monitoring is carried out on the structural performance of the building curtain wall through the temperature and humidity, the wind pressure load, the stress and strain, the displacement measurement, the material structure and the extreme weather, and the specific factors exceeding the threshold value are highlighted and adjusted accordingly, so that the structural performance of the building curtain wall is effectively maintained for a long time within a predefined range. In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1, a schematic structural diagram of a cloud computing-based building curtain wall structure performance monitoring system provided in an embodiment of the present application includes a structural performance monitoring raw data preprocessing module, a temperature and humidity monitoring module, a wind pressure load monitoring module, a stress and strain monitoring module, a displacement measurement monitoring module, a material structure correction module, an extreme weather correction module, a comprehensive performance monitoring module and a performance monitoring display terminal; the structural performance monitoring original data preprocessing module is used for acquiring and preprocessing the original data of each aspect of the structural performance monitoring factors to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set; the temperature and humidity monitoring module is used for evaluating the performance of the building curtain wall structure according to the temperature and humidity sub-data set to obtain a temperature and humidity evaluation index; the wind pressure load monitoring module is used for evaluating the performance of the building curtain wall structure according to the wind pressure load carrier data set to obtain a wind pressure load evaluation index; the stress-strain monitoring module is used for evaluating the performance of the building curtain wall structure according to the stress-strain sub-data set to obtain a stress-strain evaluation index; the displacement measurement monitoring module is used for evaluating the performance of the building curtain wall structure according to the displacement measurement sub-data set to obtain a displacement measurement evaluation index; the material structure correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain a material structure correction index; the extreme weather correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain an extreme weather correction index; the comprehensive performance monitoring module is used for performing comprehensive performance monitoring on the building curtain wall structure performance monitoring according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index to obtain a comprehensive performance monitoring coefficient; the performance monitoring display terminal is used for comprehensively displaying the performance monitoring result.
Further, the specific process of acquiring the original data of each aspect of factors of structural performance monitoring and preprocessing is as follows: obtaining original data of all aspects of factors of the structural performance monitoring of the building curtain wall, acquiring the original data of all aspects of the structural performance monitoring of the building curtain wall to obtain a structural performance monitoring original data set, evaluating the data white noise of the structural performance monitoring original data set to obtain a structural performance monitoring original data set white noise evaluation value, comparing the structural performance monitoring original data set white noise evaluation value with a corresponding set structural performance monitoring original data set white noise evaluation value, reserving corresponding structural performance monitoring original data within an error allowable range, repeating the process on all the original data of the structural performance monitoring original data set, merging all the reserved original data to obtain an effective structural performance monitoring data set, and classifying the effective structural performance monitoring data set to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set.
In this embodiment, the white noise of data may have different processing methods and corresponding white noise thresholds mainly according to different acquisition devices, and may be filtered by hardware or adjusted by software; the filtering of white noise has the following advantages: the data quality is improved, the accuracy and the reliability of the data are improved, the modeling effect of the model is improved, and the prediction result is more accurate and reliable. Further, the specific process for obtaining the temperature and humidity evaluation index is as follows: obtaining ambient temperature from temperature and humidity sub-data set Ambient humidity->And comprehensive waterproof Property->And obtaining the temperature and humidity evaluation index according to the specific calculation formula>The specific calculation formula isWherein->Representing a predefined coefficient of thermal expansion->Representing a predefined coefficient of thermal stress variation->Representing predefined comprehensive waterproof performance standard value->An influence matching factor representing the ratio of the ambient humidity to the integrated waterproof property and the predefined integrated waterproof property standard value,/->Corrosion oxidation coefficient indicating ambient humidity match, +.>Indicating the setting of the corresponding influence matching factors of different types of the building curtain wall structure performances>The negative influence coefficient of the mutual superposition of the environment temperature, the environment humidity and the comprehensive waterproof performance is represented.
In this embodiment, temperature and humidity are important parameters affecting the performance of the building curtain wall structure. They can have direct or indirect influence on the materials, connection modes and operating conditions of the curtain wall structure, and have influence on the following factors: thermal expansion and contraction: the temperature changes may cause thermal expansion and contraction of the materials in the curtain wall structure. Different materials have different coefficients of thermal expansion, and when the temperature increases, the material expands and when the temperature decreases, the material contracts. Such thermal expansion and contraction may cause stress variations in the material and displacement of the structure, affecting the stability and sealing properties of the curtain wall structure; thermal stress: the temperature variations may also cause thermal stresses in the curtain wall structure. Stress concentrations may occur when a portion of the structure expands with heat while another portion remains cold-shrunk, particularly at the connection points and welds. The long-term accumulated thermal stresses may lead to fatigue and cracking of the material, thereby reducing the strength and lifetime of the curtain wall structure; corrosion and oxidation: high humidity environments are prone to corrosion and oxidation of materials. Particularly in marine environments, high humidity areas or in places where the atmosphere contains corrosive substances, the metal components of the curtain wall structure may suffer from corrosion, reducing their strength and durability; glass expansion and thermal shock: glass is a common curtain wall material with a small thermal expansion coefficient. When the temperature change is large, particularly in the case of direct sunlight during the daytime and sudden temperature drop during the night, the glass may undergo thermal expansion and contraction, generating thermal shock. This may lead to glass breakage or stress concentration, which in turn affects the safety and the quality of the curtain wall construction; waterproof construction Performance: the high humidity environment may have an impact on the water resistance of the curtain wall structure. Water seepage, water leakage and water vapor infiltration can cause increased humidity in the structure, thereby damaging the internal insulation and insulation layers, exacerbating corrosion and material degradation. Further, the specific process for obtaining the wind pressure load evaluation index is as follows: obtaining predefined wind pressure load fatigue performance from wind pressure load data setActual wind pressure load distribution coefficient->Actual structural strength->And actual structural stability->Is provided with->Equal to the wind pressure load evaluation comparison value, the specific comparison formula is +.>Wherein->、/>And->Respectively representing an actual wind pressure load distribution coefficient safety standard value, a predefined wind pressure load fatigue performance safety standard value and an actual structural strength safety standard value, < ->And->Respectively representing a predefined wind pressure load fatigue performance limit value and an actual wind pressure load fatigue performance limit valueWind pressure load distribution coefficient limit value->And->Respectively representing the set actual wind pressure load distribution coefficient and the set influence matching factor corresponding to the predefined wind pressure load fatigue performance, < >>A matching factor representing a predefined wind pressure load compression factor, < >>Represents natural constant, and accordingly obtains wind pressure load evaluation index +_through specific calculation formula >The specific calculation formula is that>，/>When->，/>Wherein->And the influence matching factor of the wind pressure load evaluation comparison value and the actual structural stability is represented. In this embodiment, as shown in fig. 2, a schematic structural diagram of a wind pressure load evaluation index obtained in this embodiment of the present application is shown, where wind pressure load refers to pressure applied by wind to a surface of a building curtain wall. These wind loads can have various effects on the performance of the building curtain wall structure, both on the following factors: structural strength, wind pressure load can influence building curtain structure's intensity. When wind pressure load is applied to the surface of the curtain wall, the structure needs to beCan bear load and keep stable. If the curtain wall structure is unreasonable in design or insufficient in material to bear wind pressure load, the structure may be deformed, destroyed or collapsed; stability: the stability of building curtain is great to wind pressure load. Under the action of wind force, the components such as curtain wall plates, connecting pieces and the like can displace or deform, so that the overall stability of the curtain wall is reduced. The wind pressure load is properly considered, and reasonable design and reinforcement measures are adopted to improve the stability of the curtain wall; load distribution: the action of wind pressure loads can result in uneven distribution of curtain wall surface loads. The different positions receive different wind pressure loads, which may cause stress concentration on the surface of the curtain wall, increase displacement and deformation of the structure, and even cause local damage. Therefore, in the design and construction process of the curtain wall, the influence of load distribution needs to be considered, so that reasonable load transmission and balanced load distribution are ensured; the wind pressure load distribution coefficient represents the relative size of quantized load distribution, and fatigue performance: repeated application of wind pressure loads may cause fatigue failure of the curtain wall structure. The curtain wall structure can be subjected to accumulated stress under the action of high wind load for a long time, so that the fatigue damage of materials is increased, and the service life of the structure is reduced; therefore, design and material selection of curtain wall structures require consideration of fatigue performance to ensure reliability and durability in long-term service; the curtain wall structure can be ensured to have enough strength, stability and durability under the action of wind power.
Further, the specific process for obtaining the stress-strain evaluation index is as follows: acquisition of predefined structural stiffness coefficients from stress-strain sub-data setsPredefined stress fatigue coefficient->Predefined strain stability->And actual natural strain strength propertiesAnd accordingly pass throughThe stress-strain evaluation index is obtained by a calculation formula>The specific calculation formula is->Wherein->And->Weight factors corresponding to the predefined strain stability and the actual natural strain strength properties, respectively, +.>Superimposed negative influence coefficient representing predefined strain stability and actual natural strain strength properties, +.>Correction factors representing the predefined structural stiffness coefficient corresponding to predefined strain stability and actual natural strain strength properties +.>Representing a predefined stress fatigue coefficient standard value, < >>Representing a correction factor for the predefined stress fatigue coefficient versus stress strain.
In this embodiment, stress and strain are two important concepts in material mechanics and play a key role in building curtain wall construction. Stress refers to the amount of force per unit area, while strain is the degree of deformation of an object due to an external force. The stress and strain have various effects on the performance of the building curtain wall structure, and have effects on the following factors: strength and stability: stress is one of the main causes of deformation and failure of materials. When the stresses exceed the strength limits of the material, damage to the curtain wall structure may be caused. In addition, if the stress is too great, the structure becomes Shapes exceeding the acceptable range may cause the curtain wall to lose stability and even collapse. Therefore, reasonable design and material selection should take into account the strength and stability of the curtain wall construction. Stiffness and deformation: strain is a measure that describes the degree of deformation of a material. In building curtain wall structures, strain affects its stiffness and deformation characteristics. A smaller strain generally indicates a stiffer structure with relatively less deformation; while larger strains may result in larger deformations of the structure, even beyond the accepted range. Therefore, in the design and construction of curtain wall structures, the influence of strain needs to be considered to ensure proper stiffness and deformation control. Fatigue performance: repeated stress and strain effects may lead to fatigue failure of the curtain wall structure. When stresses and strains are repeatedly varied in the curtain wall structure, this can lead to a material with a compromised fatigue life, thereby reducing the durability of the structure. Therefore, fatigue performance considerations are critical in structural performance monitoring systems for curtain wall structures. Further, the specific process for obtaining the displacement measurement evaluation index is as follows: obtaining actual displacement measurement matching coefficients from the displacement measurement sub-data setActual sealing Property- >Mechanical Properties of the actual Structure->And predefined design visual effects->And obtaining a displacement measurement evaluation index +.>The specific calculation formula isWherein->And->Representing maximum actual sealing performance and minimum actual sealing performance, respectively,/->Indicating that setting the difference corresponding to the actual sealing performance affects the matching factor,/->And the joint influence matching factor corresponding to the maximum practical sealing performance and the practical structural mechanical performance is set.
In this embodiment, displacement measurement is an important parameter describing deformation of the building curtain wall structure. They have various effects on the structural properties of the curtain wall, both on the following factors: sealing performance: the displacement and direction of movement have an effect on the sealing properties of the curtain wall. Curtain walls are required to have good sealing properties as an external protection layer of a building to prevent moisture, air and foreign materials from penetrating into the interior of the building. Excessive displacement and movement may cause seams and joints in the curtain wall to crack or open, thereby reducing the sealing effect. Structural mechanical properties: the displacement and the direction of movement have an important influence on the mechanical properties of the curtain wall structure. For example, in curtain wall load transfer and distribution, displacement and direction of movement determine the force transfer path and force balance. Excessive displacement and movement may result in an unbalanced distribution of forces in the curtain wall structure, increasing localized stresses, thereby affecting the strength and stability of the structure. Designing visual effect: the displacement and direction of movement also have an impact on the design visual effect of the curtain wall. Building curtain walls are often an important component of the appearance of a building, and designers create unique appearance effects by means of displacements and directions. For certain design styles and concepts, reasonable displacement and movement can enhance the visual appeal and recognition of the building. The displacement and the direction of movement are reasonably controlled, the stability, the sealing performance, the mechanical performance and the visual effect of the structure are ensured, and the safety, the function and the attractiveness of the curtain wall structure are ensured.
Further, the specific process for obtaining the material structure correction index is as follows: acquisition of materials from structural property syndromesStructural correction matching coefficientPredefined processibility coefficient->And a predefined anti-aging coefficient->And obtaining the material structure correction index according to the calculation formula>The specific calculation formula is->Wherein->And->Weight factors corresponding to the predefined machinability and ageing resistance coefficients, respectively, < >>A joint correction factor representing a predefined machinability factor and a predefined ageing resistance factor,>representing a predefined machinability factor, a predefined ageing resistance factor, an actual sealing performance and a predefined strain stability superposition influence factor,/->Indicating the actual sealing performance->And predefined strain stability->Is added to the negative influence factor. In this embodiment, the choice of materials and the different structural typesHas great influence on the performance of the building curtain wall structure. The following list several aspects of effects: strength and stability: different materials and structural types have different strength and stability characteristics. For example, steel has higher strength and rigidity, and is suitable for curtain wall structures of large-span and high-rise buildings. The aluminum alloy has lighter weight and good corrosion resistance, and is suitable for curtain wall structures with small and medium spans. Thus, the choice of materials and structures has a significant impact on the strength and stability of the curtain wall construction. Sealing performance: different materials and structural types also have an impact on the sealing performance of the curtain wall. For example, aluminum alloy curtain walls often use sealing strips or sealants to close the joints between the curtain wall panels and the structure to achieve a better seal. And the glass curtain wall is usually sealed by adopting structural adhesive and sealant to close gaps between curtain wall boards. Different materials and structural types behave differently in terms of sealing properties, and need to be selected according to specific requirements. Workability: the choice of materials and the type of construction also have an impact on the construction and maintenance of the curtain wall. For example, the aluminum alloy curtain wall material has good workability, is easy to process into various shapes and sizes, and is convenient to manufacture and install. Meanwhile, the aluminum alloy has better weather resistance and relatively lower maintenance cost. Different materials and structural types have different requirements for curtain wall construction and maintenance, and thus, these factors need to be comprehensively considered. Sustainability: the choice of materials and construction will also have an impact on the sustainability of the curtain wall. For example, curtain walls employing renewable materials or recycled materials may reduce resource consumption and environmental impact. Meanwhile, the curtain wall adopting the energy-saving design and the high-efficiency heat insulation material can improve the energy efficiency of the building. Sustainability is the focus of attention in the current construction industry, and choice of materials and structures plays an important role in achieving sustainable development goals; in curtain wall design and selection, the above influencing factors need to be fully considered to ensure the safety, functionality and sustainability of the curtain wall structure. Further, the specific process of obtaining the extreme weather correction index is as follows: obtaining extreme weather correction matching coefficients from an extreme weather correction sub-data set >And the coefficient of influence of the freeze thawing cycle->And obtaining the extreme weather correction index +.>The specific calculation formula is->Wherein->And->Weight factors corresponding to the weight factors and the weight factors corresponding to the actual sealing performance, respectively representing the combination of the predefined thermal expansion coefficient and the predefined thermal stress change coefficient, +.>Superimposed influencing factors representing the coefficient of influence of the freeze-thaw cycle, the actual sealing performance, the predefined coefficient of thermal expansion and the predefined coefficient of thermal stress variation, +.>And the superimposed negative influence coefficients of the ice melting cycle influence coefficient, the actual sealing performance, the predefined thermal expansion coefficient, the predefined thermal stress change coefficient and the actual wind pressure load distribution coefficient are represented.
In this embodiment, extreme weather conditions may have a versatile impact on the performance of the building curtain wall structure. The following are some possible influencing aspects: high wind pressure and wind load: extreme wind speeds and strong wind pressures may impose substantial wind loads on the curtain wall structure. This may result in the curtain wall structure being subjected to a large external force, increasing the stress and deformation of the curtain wall. If the design of the curtain wall structure fails to take these wind loads into account, instability, deformation or failure of the structure may result. Therefore, in design and construction, it is necessary to fully consider the influence of extreme wind pressure and wind load on the curtain wall structure and take appropriate design and reinforcement measures. Storm and watertight performance: extreme rainfall can create challenges to the watertight performance of curtain walls. If the curtain wall materials, seams and sealing systems are not sufficiently resistant to moisture penetration, water leakage and seepage problems may result. This can not only cause damage to the interior of the building, but can also affect the structural integrity of the curtain wall itself. Therefore, waterproof measures should be considered in curtain wall design and construction to ensure the watertight performance of the curtain wall. Temperature change and thermal expansion: extreme temperature changes may cause thermal expansion and contraction of the curtain wall material. This can lead to displacements and deformations of the curtain wall structure, affecting the stability and sealing performance of the structure. The thermal expansion coefficients of different materials are different, and the difference can also cause displacement and friction force to further influence the mechanical property of the structure. Therefore, thermal characteristics of materials and proper expansion joint designs need to be considered in curtain wall design and construction to accommodate temperature changes and thermal expansion. Freezing and thawing cycle: at extremely low temperatures, curtain wall structures may suffer from ice and snow accumulation and freeze-thaw cycles. Ice and snow accumulation can increase the load on the curtain wall and cause structural deformation, and freeze-thaw cycles can cause damage and destruction of the material. This may lead to a decrease in the strength and sealing properties of the structure. Appropriate anti-icing measures and material selection may mitigate these effects. These effects need to be fully taken into account and appropriate measures taken to ensure that the curtain wall construction is sufficiently strong, stable, watertight.
Further, the specific process for obtaining the comprehensive performance monitoring coefficient is as follows: acquiring a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress and strain evaluation index, a displacement measurement evaluation index, a material structure correction index and an extreme weather correction index, and obtaining a comprehensive performance monitoring coefficient according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index through a calculation formulaThe specific calculation formula isWherein->、/>And->Respectively representing coordination weight factors corresponding to the stress-strain evaluation index, the displacement measurement evaluation index and the wind pressure load evaluation index, < ->Indicating the corresponding temperature and humidity evaluation index at the set temperature and humidity,/->And the corresponding comprehensive performance adjusting factor is used for indicating the ratio of the temperature and humidity evaluation index to the corresponding temperature and humidity evaluation index under the set temperature and humidity.
In this embodiment, as shown in fig. 3, for a schematic structural diagram of obtaining a comprehensive performance monitoring coefficient according to the embodiment of the present application, comprehensive performance monitoring on the performance of a building curtain wall structure can bring many benefits, including: problems are found in advance, and structural safety is improved: the comprehensive performance monitoring is helpful for evaluating the safety performance of the curtain wall structure. Through continuous monitoring and comparison of design parameters and actual performances, the stability, wind resistance and bearing capacity of the curtain wall structure can be evaluated, and the curtain wall structure can be ensured to normally run and bear external loads under extreme weather conditions. This helps to ensure the personal and property safety of the building; optimizing maintenance plans: through comprehensive performance monitoring, the health condition and the aging degree of the curtain wall structure can be known. This helps to guide the formulation and execution of maintenance plans. The time and the method for maintenance and overhaul work can be reasonably arranged according to the analysis result of the monitoring data, the service life of the curtain wall structure is prolonged to the maximum extent, and the operation and maintenance cost is reduced. Data support decision: these data can be used to evaluate the reliability and overall performance of the curtain wall structure, supporting decision makers to formulate rational management and maintenance strategies. This helps to maximize the value and function of the curtain wall structure, and to increase the overall value of the building.
Further, the specific process of the performance monitoring display terminal for comprehensively displaying the performance monitoring result is as follows: comparing the comprehensive performance monitoring coefficient with a predefined comprehensive performance monitoring coefficient threshold value, if the comprehensive performance monitoring coefficient is within a predefined error allowable range, marking a monitoring system corresponding to the comprehensive performance monitoring coefficient as a safety monitoring system, otherwise, comparing and calculating a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress and strain evaluation index, a displacement measurement evaluation index, a material structure correction index and an extreme weather correction index with corresponding maximum predefined index threshold values respectively, if each evaluation index exceeds the corresponding maximum predefined coefficient threshold value, sequentially traversing each factor data for structural performance monitoring in an evaluation index corresponding sub-data set exceeding the threshold value, and when each factor data exceeds the corresponding threshold value, marking the factor data with red immediately, checking specific factors corresponding to structural performance monitoring, and sequentially checking and adjusting all specific factors exceeding the threshold value.
In this embodiment, all data in the predefined threshold are marked green, all data in the predefined threshold are marked yellow, all data in the predefined threshold are marked red, and all data in the predefined threshold are marked red. The following is a general adjustment method: for unreasonable places, the adjustment of the building curtain wall structure needs to comprehensively consider the nature, cause and solution of the problem, cooperate with professionals, evaluate and analyze to find the solution, monitor and maintain regularly, and ensure that the adjusted structure meets applicable standards and specifications.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages: relative to the bulletin number: according to the construction performance evaluation method and system based on the structural health monitoring data, disclosed by the CN110006676B, the comprehensive performance monitoring module is used for carrying out comprehensive performance monitoring on the construction curtain wall structure performance monitoring to obtain a comprehensive performance monitoring coefficient, so that the reliability and the overall performance of the curtain wall structure are evaluated, and the scientificity of improving the overall performance of the construction curtain wall structure performance monitoring is realized; relative to the bulletin number: according to the method and the device for evaluating the safety performance of the building, disclosed by the CN113158293B, the performance monitoring result is comprehensively displayed through the performance monitoring display terminal, the comprehensive performance monitoring coefficient is compared with the predefined comprehensive performance monitoring coefficient threshold value, the highlighting is carried out according to the comprehensive performance monitoring coefficient threshold value, and specific factors exceeding the threshold value are adjusted, so that the adjusted structure is ensured to accord with applicable standards and specifications, and further the long-term stable maintenance of the performance of the building curtain wall structure in a predefined range is realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of systems, apparatuses (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational processes to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The building curtain wall structure performance monitoring system based on cloud computing is characterized by comprising a structure performance monitoring original data preprocessing module, a temperature and humidity monitoring module, a wind pressure load monitoring module, a stress and strain monitoring module, a displacement measurement monitoring module, a material structure correction module, an extreme weather correction module, a comprehensive performance monitoring module and a performance monitoring display terminal;
The structural performance monitoring original data preprocessing module is used for acquiring and preprocessing the original data of each aspect of the structural performance monitoring factors to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set;
the temperature and humidity monitoring module is used for evaluating the performance of the building curtain wall structure according to the temperature and humidity sub-data set to obtain a temperature and humidity evaluation index;
the wind pressure load monitoring module is used for evaluating the performance of the building curtain wall structure according to the wind pressure load carrier data set to obtain a wind pressure load evaluation index;
the stress-strain monitoring module is used for evaluating the performance of the building curtain wall structure according to the stress-strain sub-data set to obtain a stress-strain evaluation index;
the displacement measurement monitoring module is used for evaluating the performance of the building curtain wall structure according to the displacement measurement sub-data set to obtain a displacement measurement evaluation index;
the material structure correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain a material structure correction index;
the extreme weather correction module is used for evaluating the structural performance of the building curtain wall according to the structural performance correction sub-data set to obtain an extreme weather correction index;
The comprehensive performance monitoring module is used for performing comprehensive performance monitoring on the building curtain wall structure performance monitoring according to the temperature and humidity evaluation index, the wind pressure load evaluation index, the stress and strain evaluation index, the displacement measurement evaluation index, the material structure correction index and the extreme weather correction index to obtain a comprehensive performance monitoring coefficient;
the performance monitoring display terminal is used for comprehensively displaying performance monitoring results.
2. The system for monitoring the performance of the building curtain wall structure based on cloud computing as claimed in claim 1, wherein the specific process of acquiring the original data of all factors of the structural performance monitoring and preprocessing is as follows:
the method comprises the steps of obtaining primary data of all aspects of structural performance monitoring factors of a building curtain wall, extracting the primary data of all aspects of structural performance monitoring factors of the building curtain wall to obtain a structural performance monitoring primary data set, evaluating data white noise of the structural performance monitoring primary data set to obtain a structural performance monitoring primary data set white noise evaluation value, comparing the structural performance monitoring primary data set white noise evaluation value with a corresponding set structural performance monitoring primary data set white noise evaluation value, reserving corresponding structural performance monitoring primary data within an error allowable range, repeating the process on the primary data of all the structural performance monitoring primary data sets, merging all reserved primary data to obtain an effective structural performance monitoring data set, and classifying the effective structural performance monitoring data set to obtain a temperature and humidity sub-data set, a wind pressure load sub-data set, a stress strain sub-data set, a displacement measurement sub-data set and a structural performance correction sub-data set.
3. The cloud computing-based building curtain wall structure performance monitoring system according to claim 2, wherein the specific process of obtaining the temperature and humidity evaluation index is as follows:
obtaining ambient temperature from temperature and humidity sub-data setAmbient humidity->And comprehensive waterproof Property->And obtaining the temperature and humidity evaluation index according to the specific calculation formula>The specific calculation formula is->Wherein->Representing a predefined coefficient of thermal expansion->Representing a predefined coefficient of thermal stress variation->Representing predefined comprehensive waterproof performance standard value->An influence matching factor representing the ratio of the ambient humidity to the integrated waterproof property and the predefined integrated waterproof property standard value,/->Corrosion oxidation coefficient indicating ambient humidity match, +.>Indicating the setting of the corresponding influence matching factors of different types of the building curtain wall structure performances>The negative influence coefficient of the mutual superposition of the environment temperature, the environment humidity and the comprehensive waterproof performance is represented.
4. The cloud computing-based building curtain wall structure performance monitoring system according to claim 3, wherein the specific process of obtaining the wind pressure load evaluation index is as follows:
obtaining predefined wind pressure load fatigue performance from wind pressure load data setActual wind pressure load distribution coefficient- >Actual structural strength->And actual structural stability->Is provided with->Equal to wind pressureThe load evaluation comparison value is specifically represented by the following formulaWherein->、/>And->Respectively representing an actual wind pressure load distribution coefficient safety standard value, a predefined wind pressure load fatigue performance safety standard value and an actual structural strength safety standard value, < ->And->Respectively representing a predefined wind pressure load fatigue performance limit value and an actual wind pressure load distribution coefficient limit value,/or%>And->Respectively representing the set actual wind pressure load distribution coefficient and the set influence matching factor corresponding to the predefined wind pressure load fatigue performance, < >>A matching factor representing a predefined wind pressure load compression factor, < >>Represents natural constant, and accordingly obtains wind pressure load evaluation index +_through specific calculation formula>The specific calculation formula is that>，/>When->，/>Wherein->And the influence matching factor of the wind pressure load evaluation comparison value and the actual structural stability is represented.
5. The cloud computing-based building curtain wall structure performance monitoring system according to claim 4, wherein the specific process of obtaining the stress-strain evaluation index is as follows:
acquisition of predefined structural stiffness coefficients from stress-strain sub-data setsPredefined stress fatigue coefficient- >Predefined strain stability->And nature of the actual natural strain strength->And obtaining the stress-strain evaluation index +.>The specific calculation formula is->Wherein->And->Weight factors corresponding to the predefined strain stability and the actual natural strain strength properties, respectively, +.>Superimposed negative influence coefficient representing predefined strain stability and actual natural strain strength properties, +.>Correction factors representing the predefined structural stiffness coefficient corresponding to predefined strain stability and actual natural strain strength properties +.>Representing a predefined stress fatigue coefficient standard value, < >>Representing a correction factor for the predefined stress fatigue coefficient versus stress strain.
6. The system for monitoring the performance of the building curtain wall structure based on cloud computing as claimed in claim 5, wherein the specific process of obtaining the displacement measurement evaluation index is as follows:
obtaining actual displacement measurement matching coefficients from the displacement measurement sub-data setActual sealing Property->Mechanical Properties of the actual Structure->And predefined design visual effects->And obtaining a displacement measurement evaluation index +.>The specific calculation formula is->Wherein->And->Representing maximum actual sealing performance and minimum actual sealing performance, respectively,/- >Indicating that setting the difference corresponding to the actual sealing performance affects the matching factor,/->And the joint influence matching factor corresponding to the maximum practical sealing performance and the practical structural mechanical performance is set.
7. The system for monitoring the performance of the building curtain wall structure based on cloud computing as claimed in claim 6, wherein the specific process of obtaining the material structure correction index is as follows:
obtaining material structure correction matching coefficients from the structural property correction sub-data setPredefined processibility coefficient->And a predefined anti-aging coefficient->And obtaining the material structure correction index according to the calculation formula>The specific calculation formula isWherein->And->Weight factors corresponding to the predefined machinability and ageing resistance coefficients, respectively, < >>A joint correction factor representing a predefined machinability factor and a predefined ageing resistance factor,>representing a predefined machinability factor, a predefined ageing resistance factor, an actual sealing performance and a predefined strain stability superposition influence factor,/->Indicating the actual sealing performance->And predefined strain stability->Is added to the negative influence factor.
8. The cloud computing-based building curtain wall structure performance monitoring system according to claim 7, wherein the specific process of obtaining the extreme weather correction index is as follows:
Obtaining extreme weather correction matching coefficients from extreme weather correction sub-data setsAnd the coefficient of influence of the freeze thawing cycle->And obtaining the extreme weather correction index +.>The specific calculation formula is->Wherein->And->Weight factors corresponding to the weight factors and the weight factors corresponding to the actual sealing performance, respectively representing the combination of the predefined thermal expansion coefficient and the predefined thermal stress change coefficient, +.>Superimposed influencing factors representing the coefficient of influence of the freeze-thaw cycle, the actual sealing performance, the predefined coefficient of thermal expansion and the predefined coefficient of thermal stress variation, +.>Indicating the coefficient of influence of the freeze thaw cycle, the actual sealing performance, and the predefined coefficient of thermal expansion.
9. The system for monitoring the performance of the building curtain wall structure based on cloud computing as claimed in claim 8, wherein the specific process of obtaining the comprehensive performance monitoring coefficient is as follows:
acquiring a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress strain evaluation index and a displacement measurementThe quantity evaluation index, the material structure correction index and the extreme weather correction index, and the comprehensive performance monitoring coefficient is obtained according to the quantity evaluation index, the material structure correction index and the extreme weather correction index through a calculation formulaThe specific calculation formula is->Wherein->、/>And->Respectively representing coordination weight factors corresponding to the stress-strain evaluation index, the displacement measurement evaluation index and the wind pressure load evaluation index, < - >Indicating the corresponding temperature and humidity evaluation index at the set temperature and humidity,/->And the corresponding comprehensive performance adjusting factor is used for indicating the ratio of the temperature and humidity evaluation index to the corresponding temperature and humidity evaluation index under the set temperature and humidity.
10. The system for monitoring the performance of the building curtain wall structure based on cloud computing as claimed in claim 9, wherein the specific process of the performance monitoring display terminal for comprehensively displaying the performance monitoring result is as follows:
comparing the comprehensive performance monitoring coefficient with a predefined comprehensive performance monitoring coefficient threshold value, if the comprehensive performance monitoring coefficient is within a predefined error allowable range, marking a monitoring system corresponding to the comprehensive performance monitoring coefficient as a safety monitoring system, otherwise, comparing and calculating a temperature and humidity evaluation index, a wind pressure load evaluation index, a stress and strain evaluation index, a displacement measurement evaluation index, a material structure correction index and an extreme weather correction index with corresponding maximum predefined index threshold values respectively, if each evaluation index exceeds the corresponding maximum predefined coefficient threshold value, sequentially traversing each factor data for structural performance monitoring in an evaluation index corresponding sub-data set exceeding the threshold value, and when each factor data exceeds the corresponding threshold value, marking the factor data with red immediately, checking specific factors corresponding to structural performance monitoring, and sequentially checking and adjusting all specific factors exceeding the threshold value.
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