Method for evaluating inner-layer structure of multifunctional integrated enclosure structure under intermittent working condition

Abstract

The invention discloses an evaluation method and system for an inner layer structure of a multifunctional integrated enclosure structure under an intermittent working condition, and the method comprises the steps: constructing a secondary evaluation index of the inner layer structure of the multifunctional integrated enclosure structure according to a building climate region to which an enclosure structure to be evaluated belongs, and integrating the building climate region into the construction of an index system, through a dynamic weight distribution technology, evaluation key points are automatically adjusted along with climate zone changes, the universality defect of traditional evaluation is overcome, dynamic heat and humidity coupling simulation and aging simulation are carried out on an inner layer structure of a multifunctional integrated enclosure structure under an intermittent working condition, the limitation of continuous steady-state working condition evaluation is broken through, simulation results are scored, and the evaluation accuracy is improved. And calculating a first-level evaluation index of the reaction comprehensive performance according to a climate region differentiation weight distribution result, and evaluating the inner layer structure of the enclosure structure according to the first-level evaluation index of the reaction comprehensive performance and a quantitative scoring result comprehensive result, so that the evaluation result is ensured to be matched with the regional suitability, and the evaluation result is more accurate.

Description

Technical Field

[0001] This invention belongs to the field of building envelope evaluation technology, and relates to a method and system for evaluating the inner layer structure of a multifunctional integrated building envelope under intermittent working conditions. Background Technology

[0002] Current building energy efficiency design principles and methods for building envelope insulation originate from the insulation and moisture-proofing requirements of continuously heated residential buildings in frigid climates, with structural designs prioritizing external insulation. However, promoting external insulation is unsuitable for many residential buildings in hot-summer-cold-winter, hot-summer-warm-winter, and even temperate climates. For example, in hot-summer-cold-winter regions, residential buildings commonly use intermittent heating and air conditioning. Due to the large energy storage capacity of the building envelope, long heating and cooling times, and the fire hazard posed by external insulation materials, external insulation systems are not appropriate. Research indicates that internal insulation is more effective in these regions. During intermittent air conditioning operation, the thermal properties of the inner wall material are particularly important for the dynamic thermal response characteristics of the inner surface of the wall. Therefore, it is necessary to conduct in-depth research on the innermost layer of the building envelope. The inner layer is a crucial component of the building structure, undertaking multiple important functions such as structural support, thermal insulation, sound insulation, waterproofing, decoration, and safety. Currently, with the gradual establishment of policy and industrial systems for the coordinated development of intelligent construction and new building industrialization, prefabricated building technology is maturing, and integrated wall panel internal structures are being promoted and applied. Simultaneously, driven by the development of building materials and the implementation of energy conservation and emission reduction policies, new materials with superior properties such as high strength, high durability, fire resistance, and impermeability are being used in wall panel internal structures, integrating multiple functions such as thermal insulation, heat insulation, and waterproofing. The wall panel internal structure is evolving from a single-function structure to a multi-functional integrated structure.

[0003] However, due to the lack of a standardized certification and evaluation system for industrialized building components and a production supervision system, a large number of poor-performing, multi-functional integrated internal structural components have flooded the market, seriously hindering the healthy development of the construction industry and the process of building industrialization.

[0004] Currently, most existing evaluations of inner structure properties focus on only one aspect, such as thermal or physical performance parameters. These evaluations fail to consider the characteristics of different inner structure types and the climatic features of different regions. Subjective factors significantly influence the evaluation process, making them unsuitable for evaluating the comprehensive performance of the inner structure of intermittent, multifunctional integrated structures. Therefore, it is necessary to establish a more comprehensive and effective method for evaluating the comprehensive performance of the inner structure of multifunctional integrated building envelopes, applicable to different inner structure types and climatic zones.

[0005] Current comprehensive evaluation methods for the inner structure of this type of integrated enclosure have significant limitations: The inherent characteristics of cement-based materials, such as increased thermal conductivity due to carbonization during service, cracking caused by freeze-thaw cycles, and aging of the interface between the wall panel and the composite layer (insulation / decorative layer), are not included in the evaluation scope.

[0006] Insufficient adaptability to intermittent operating conditions: Buildings in my country's hot-summer-cold-winter and hot-summer-warm-winter climate zones commonly use intermittent heating / air conditioning. Existing evaluations are mostly based on continuous steady-state operating conditions (such as continuous heating in frigid regions), without simulating the dynamic thermal response of cement-based wall panels under intermittent operating conditions (such as temperature rise lag time and temperature fluctuation amplitude), resulting in evaluation results that are out of sync with actual performance.

[0007] Multifunctional integration evaluation is one-sided: Existing methods evaluate individual functions such as thermal insulation and fire protection separately, without considering the synergistic performance between cement-based substrates and multifunctional modules (such as the thermal bridging effect at the thermal insulation layer-substrate interface and the adhesion durability of waterproof coatings-cement-based materials), and thus fail to reflect the core advantages of integration.

[0008] Insufficient differentiation among climate zones: Different climate zones have significantly different requirements for the structural performance of the inner layer of the integrated building envelope (e.g., hot summer and cold winter regions need to prevent carbonization and damp heat damage, while frigid regions need to focus on freeze-thaw resistance). Existing evaluations use uniform index weights and do not adjust the focus according to climate zones, resulting in poor universality.

[0009] Lack of durability evaluation: The performance of cement-based materials degrades over service time (carbonation, freeze-thaw aging). Existing evaluations are based on the performance of new materials and do not simulate the performance changes after long-term aging, making it impossible to predict service life and maintenance requirements.

[0010] The lack of an evaluation system for internal insulation components in building envelopes: The development of building envelope insulation systems in my country is currently significantly unbalanced. Compared to mature external insulation and sandwich insulation systems, comprehensive evaluation methods for multifunctional integrated internal insulation components are scarce, making it difficult to effectively meet the diverse needs of different climate zones and building types for high-performance integrated internal insulation components. Summary of the Invention

[0011] The purpose of this invention is to address the problem that most existing evaluation methods focus on thermal or physical performance parameters, failing to consider the characteristics of the inner layer structure and the climate features of different regions, resulting in singular and inaccurate evaluation results. This invention provides an evaluation method for the inner layer structure of a multifunctional integrated enclosure structure under intermittent operating conditions.

[0012] To achieve the above objectives, the present invention employs the following technical solution: A method for evaluating the inner structure of a multifunctional integrated enclosure under intermittent working conditions includes the following steps: Obtain the classification results of different building climate zones, obtain the building climate zone to which the building envelope to be evaluated belongs based on the classification results, and construct a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. The importance of the secondary evaluation indicators is scored, the weight of each secondary evaluation indicator is calculated based on the importance scores, and the primary evaluation indicator index is calculated based on the weights and importance scores of each secondary evaluation indicator. Dynamic thermal-humid coupling simulation and aging simulation under intermittent working conditions were performed on the inner layer structure of the multifunctional integrated enclosure structure to obtain simulation results. Based on the simulation results, the secondary indicators were scored and calculated to obtain quantitative scoring results. Evaluation results are obtained based on primary evaluation indexes and quantitative scoring results.

[0013] A further improvement of the present invention is that: The process involves obtaining the classification results of different building climate zones, determining the building climate zone to which the building envelope to be evaluated belongs based on the classification results, and constructing a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. This index includes: Construct a secondary evaluation index for the inner layer structure of a multifunctional integrated enclosure structure; Obtain the classification results of different building climate zones, construct a three-level evaluation index based on the climate zone where the building envelope to be evaluated is located, and use the three-level evaluation index to limit the two-level evaluation index to obtain the limited two-level evaluation index.

[0014] The secondary evaluation indicators include: Thermal performance B1, physical performance B2, cement-based interface performance B3, functional modules B4, and safety and durability performance B5; The thermal performance B1 includes dynamic thermal response characteristics, thermal inertia index, rate of change of thermal conductivity after carbonization, and thermal-humidity coupling transfer efficiency. The physical properties B2 include compressive strength, crack resistance, carbonization depth, fire resistance, sound insulation, and waterproofing and impermeability. The cement-based interface performance B3 includes the interfacial bonding strength between the cement-based substrate and the composite layer, the interfacial shear strength, and the interfacial aging stability. The functional module B4 includes thermal insulation efficiency, waterproof coating durability, and the degree of implementation of intelligent control functions; The safety and durability performance B5 includes resistance to freeze-thaw cycles, long-term load deflection, fire resistance to high-temperature bursting, and prediction of fall risk from heights.

[0015] The process involves obtaining the classification results of different building climate zones, constructing a three-level evaluation index based on the climate zone where the building envelope to be evaluated is located, and then using the three-level evaluation index to limit the two-level evaluation index, resulting in the limited two-level evaluation index, including: The classification of different architectural climate zones includes: hot summer and cold winter regions, frigid regions, and hot summer and warm winter regions. When the building climate zone is a hot-summer and cold-winter region, the three-level evaluation indicators include: C11, C12 and C31. Among them, C11 indicates that the intermittent heating thermal response lag time is less than or equal to 4 hours, C12 indicates that the change rate of thermal conductivity after carbonization is less than or equal to 5%, and C31 indicates that the attenuation rate of high-temperature and high-humidity interface bonding strength is less than or equal to 10%. When the building climate zone is a severe cold region, the three-level evaluation indexes include: C13, C21 and C51. Among them, C13 means that the heat loss rate at -20℃ is less than or equal to 8%, C21 means that there are no visible cracks after freeze-thaw, and C51 means that the number of freeze-thaw cycles is greater than or equal to 300. When the building climate zone is a hot summer and warm winter region, the three-level evaluation indicators include: C14, C22 and C32; C14 indicates that the intermittent air conditioning insulation performance ΔT is less than or equal to 3℃; C22 indicates that the high temperature and high humidity carbonization depth is less than or equal to 3mm; C32 indicates that the shear strength of the interface under damp heat aging is greater than or equal to 0.5MPa.

[0016] The calculation of the primary evaluation index based on the weight and importance scores of each secondary evaluation indicator includes:

[0017] In the formula, For the first The average score of each secondary indicator For the first The weights of each secondary indicator, This is a durability correction factor.

[0018] The step of calculating scores for secondary indicators based on simulation results to obtain quantitative scoring results includes: Calculated using the thermal performance quantitative scoring formula :

[0019] In the formula, To measure the heat storage coefficient, =11W / (m2 K h0.5), To measure the thermal response time, =4h, The thermal conductivity after carbonization The initial thermal conductivity, To measure actual temperature fluctuations, =5℃, This is a climate zone correction factor; Calculate using the interface performance quantitative scoring formula :

[0020] In the formula, The interfacial bond strength after aging. ≥0.6MPa , To measure the width of the interface gap, =0.2mm, This is the functional adaptation coefficient.

[0021] The process of obtaining evaluation results based on primary evaluation indexes and quantitative scoring results includes: When the primary evaluation index ≥75 points ≥85 points If the score is ≥80, the current evaluation result is excellent. When the primary evaluation index ≥70 points ≥80 points When the score is ≥75, the current evaluation result is good. When the primary evaluation index ≥65 points ≥75 points If the score is ≥70, the current evaluation result is intermediate.

[0022] A multifunctional integrated enclosure structure inner layer construction evaluation system under intermittent working conditions, comprising: The secondary evaluation index construction module is used to obtain the division results of different building climate zones, obtain the building climate zone to which the building envelope to be evaluated belongs based on the division results, and construct the secondary evaluation index of the inner layer structure of the multi-functional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. The primary evaluation index calculation module is used to score the importance of secondary evaluation indicators, calculate the weight of each secondary evaluation indicator based on the importance score results, and calculate the primary evaluation index based on the weight and importance score results of each secondary evaluation indicator. The quantitative scoring module is used to perform dynamic thermal-humidity coupling simulation and aging simulation of the inner layer structure of the multifunctional integrated enclosure under intermittent working conditions, obtain simulation results, calculate scores for secondary indicators based on simulation results, and obtain quantitative scoring results. The evaluation results module is used to obtain evaluation results based on the primary evaluation index and quantitative scoring results.

[0023] A terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method as described in any one of the present invention.

[0024] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of any of the methods described in this invention.

[0025] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an evaluation method for the inner layer structure of a multifunctional integrated building envelope under intermittent operating conditions. It constructs a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope belongs, integrating the building climate zone into the index system. Through dynamic weight allocation technology, the evaluation focus is automatically adjusted according to climate zone changes, overcoming the universality deficiency of traditional evaluation methods. Dynamic thermo-humidity coupling simulation and aging simulation are performed on the inner layer structure of the multifunctional integrated building envelope under intermittent operating conditions, breaking through the limitations of continuous steady-state condition evaluation. The simulation results are scored, and a primary evaluation index reflecting comprehensive performance is calculated based on the differentiated weight allocation results for each climate zone. The inner layer structure of the building envelope is evaluated based on the comprehensive performance index and the quantitative scoring results, ensuring that the evaluation results match regional adaptability and are more accurate.

[0026] Furthermore, in this invention, secondary indicators are specifically defined by constructing a three-level index coupled with climate zones. The inner layer structure of the enclosure is modified according to different regional environments, making the evaluation indicators dynamic and differentiated, and the evaluation results more correlated with the actual environment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a flowchart illustrating the overall structure of the present invention; Figure 2 This is a diagram of the indicator system constructed in this invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings: See Figures 1 to 2This invention discloses a method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions, comprising the following steps: Step 1: Obtain the classification results of different building climate zones, and construct a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs; Specifically, the following steps are included: Step 1: Construct a multi-level comprehensive evaluation index system for the inner layer structure of the integrated building envelope. Step 1.1: Define the core structural characteristics requirements of the integrated building envelope's inner layer: Based on the carbonation sensitivity, freeze-thaw resistance, interfacial adhesion, and multifunctional integration requirements of cement-based materials, the indicator system is determined to be guided by cement-based characteristics, multifunctional integration, and working condition adaptability. Step 1.2 Divide the indicator levels: Primary Indicator A: Comprehensive Performance Index (CPI) of the Inner Layer Structure of Multifunctional Integrated Envelope; Secondary indicators are divided into thermal performance (B1), physical performance (B2), cement-based interface performance (B3), functional modules (B4), and safety and durability performance (B5). Among them, B1 covers dynamic thermal response characteristics, thermal inertia index, rate of change of thermal conductivity after carbonization, and thermal-moisture coupling transfer efficiency; B2 covers compressive strength, crack resistance, carbonization depth, fire resistance rating, sound insulation, and waterproofing and impermeability; B3 covers the interfacial bonding strength between cement-based substrate and composite layer, interfacial shear resistance, and interfacial aging stability; B4 covers thermal insulation efficiency, waterproof coating durability, and degree of realization of intelligent control function; and B5 covers the number of freeze-thaw cycles, long-term load deflection change, fire resistance to high-temperature cracking, and prediction of high-altitude fall risk.

[0036] The third-level indicator Cij: Based on the five climate zones classified in the "Building Climate Zoning Standard", the second-level indicators are refined, and the cement-based characteristic indicators are strengthened for different climate zones. For the five climate zones, the weights of the second-level indicators are adjusted to tilt the weights towards the weak performance of the cement-based materials. By defining the secondary evaluation indicators through the tertiary evaluation indicators, the specific tertiary indicators for the five climate zones are obtained as follows: In hot-summer and cold-winter regions, the three-level evaluation indicators include: C11, C12, and C31. C11 indicates that the intermittent heating thermal response lag time is ≤4h; C12 indicates that the change rate of thermal conductivity after carbonization is ≤5%; and C31 indicates that the attenuation rate of interfacial bonding strength at high temperature and high humidity is ≤10%. In frigid regions, the three-level evaluation indicators include: C13, C21, and C51. C13 indicates a heat loss rate of ≤8% at -20℃; C21 indicates no visible cracks after freeze-thaw cycles; and C51 indicates resistance to freeze-thaw cycles ≥300. In hot-summer and warm-winter regions, the three-level evaluation indicators include: C14, C22 and C32; where C14 indicates intermittent air conditioning insulation performance ΔT≤3℃, C22 indicates high-temperature and high-humidity carbonization depth ≤3mm, and C32 indicates wet-heat aging interface shear strength ≥0.5MPa.

[0037] Step 2: Assign importance scores to the secondary evaluation indicators, calculate the weight of each secondary evaluation indicator based on the importance scores, and calculate the primary evaluation indicator index based on the weights and importance scores of each secondary evaluation indicator. Specifically, the following steps are included: Step 2.1: Assemble a cross-disciplinary expert team and conduct evaluations. A team was formed that includes experts in building physics, cement-based materials engineering, structural safety, and building energy conservation, and the importance of each level of indicator was scored using a 1-9 level scale method. Furthermore, in this step, the scoring rules for the 1-9 scale method are as follows: 1 = equally important, 3 = slightly important, 5 = significantly important, 7 = strongly important, 9 = extremely important, and 2 / 4 / 6 / 8 = the median value of adjacent scales.

[0038] Step 2.2: Construct the judgment matrix and perform a consistency check: A judgment matrix is ​​constructed based on expert ratings, and the maximum eigenvalue of the matrix is ​​calculated. Consistency indicators Consistency ratio RI is the average random consistency index, which is obtained by looking up the corresponding RI value in a table based on the order n of the matrix. Requirements: <0.1; if this is not met, the score will be readjusted. Preferably, in step 2.2, the value of the random consistency index RI is: when the number of secondary indicators... When =5, =1.12.

[0039] Step 2.3: Calculate the weights and verify the compatibility with cement-based properties: The weights of each level of indicators are obtained through eigenvalue decomposition. The differences in characteristics among different cement-based materials are compared to adjust the weights of the three levels of indicators. The maximum eigenvalue is then utilized. The corresponding standardized feature vector w = {w1, w2, ..., wm} is the weight of each indicator. The final composite weight is obtained by multiplying the indicator weights of different levels according to the following formula:

[0040] Furthermore, in this embodiment, the weights of the secondary indicators are specifically as follows: In hot-summer and cold-winter regions: B1 is 35%, B2 is 15%, B3 is 25%, B4 is 5%, and B5 is 20%; In extremely cold regions: B1 is 40%, B2 is 20%, B3 is 20%, B4 is 5%, and B5 is 15%; In hot-summer and warm-winter regions: B1 is 30%, B2 is 15%, B3 is 30%, B4 is 10%, and B5 is 15%.

[0041] Furthermore, in this embodiment, the CPI is calculated using the comprehensive performance index formula:

[0042] In the formula, For the first The average score of each secondary indicator For the first The weights of each secondary indicator, This is a durability correction factor.

[0043] Furthermore, in this embodiment, the parameters... To explain in detail: Taking thermal performance B1 as an example, when i is 1, This represents the average of the sum of expert scores corresponding to dynamic thermal response characteristics, thermal inertia index, rate of change of thermal conductivity after carbonization, and thermal-humidity coupling transfer efficiency, respectively.

[0044] Furthermore, in this embodiment, the durability correction factor... The calculation method is as follows: ,in, This refers to the carbonization period. =10 years, , =200 freeze-thaw cycles, =0.95, =1.0, =0.98.

[0045] Step 3: Perform dynamic thermal-humidity coupling simulation and aging simulation under intermittent working conditions on the inner layer structure of the multifunctional integrated enclosure structure, obtain simulation results, calculate the scores of secondary indicators based on the simulation results, and obtain quantitative scoring results; Specifically, the following steps are included: Step 3.1: Collect basic parameters: The thermal, mechanical, and aging parameters of cement-based materials, as well as the operating mode and environmental parameters under intermittent conditions, are collected. The thermal parameters are... and The mechanical parameters are and Aging parameters are and ; in, Thermal conductivity, measured in W / (m·K), is a measure of a material's ability to conduct heat. S is the heat storage coefficient, measured in W / (m²·K), which measures the material's ability to store and release heat. This is the standard value of the compressive strength of a concrete cube, in MPa, used for quality control, acceptance, and determination of material grade. This is the design value for material strength, in MPa, used for actual structural safety calculations. Aging rate describes how quickly material properties (such as strength and modulus) degrade over time, or the rate at which cracks propagate under stress. Cycle count / fatigue life: The total number of stress cycles a material undergoes under alternating stress or strain until failure.

[0046] In this step, the range of values ​​for cement-based material parameters is as follows: ordinary Portland cement-based. =0.9-1.1 W / (m K), =10-12 W / (m2 K h0.5), =0.1-0.3 mm / year, ≥0.6MPa ≥200 times.

[0047] Step 3.2: Perform dynamic thermo-humidity coupling and aging simulation: The internal surface temperature fluctuation under intermittent operating conditions was simulated using EnergyPlus software. Thermal response time Based on Fick's second law, the simulation showed parameter changes in cement-based materials after carbonation and freeze-thaw cycles. These parameter changes included the thermal conductivity after carbonation. , interfacial bond strength after aging Measured interface gap width ; Furthermore, scoring is based on a quantitative formula: Calculated using the thermal performance quantitative scoring formula :

[0048] In the formula, To measure the heat storage coefficient, =11W / (m2 K h0.5), To measure the thermal response time, =4h, The thermal conductivity after carbonization The initial thermal conductivity, To measure actual temperature fluctuations, =5℃, This is a climate zone correction factor; Furthermore, the climate zone correction coefficient The value is: hot summer and cold winter regions =1.0, extremely cold regions =1.1, hot summer and warm winter regions =0.9.

[0049] Calculate using the interface performance quantitative scoring formula :

[0050] In the formula, The interfacial bond strength after aging. ≥0.6MPa , To measure the width of the interface gap, =0.2mm, For functional adaptation coefficients; In step 4.2, the functional adaptation coefficient The value is: thermal insulation composite wall panel =1.0, decorative composite wall panel =0.95.

[0051] Step 4: Obtain the evaluation results based on the primary evaluation index and quantitative scoring results.

[0052] Specifically, an evaluation report is generated, which includes basic information about the wall panels, the indicator system and weights, simulation results, the formula calculation process, the grade determination, and improvement suggestions.

[0053] Furthermore, in this embodiment, the minimum score requirement for each secondary indicator is as follows: Excellent level requires each secondary indicator to be ≥75 points. ≥85 points ≥80 points; Good grade requires each secondary indicator to be ≥70 points. ≥80 points ≥75 points; Intermediate level requires each secondary indicator to be ≥65 points. ≥75 points ≥70 points.

[0054] The evaluation method disclosed in the embodiments of the present invention has the following advantages: First, a multi-level, dynamically adaptable evaluation index system is constructed. Addressing the issue that existing evaluations neglect the characteristics of cement-based materials, climatic zone differences, and multi-functional synergy, a pioneering three-level index framework of "cement-based characteristics - multi-functional integration - climatic zone adaptability" is developed. Through dynamic weight allocation technology, the evaluation focus automatically adjusts with changes in climatic zones, overcoming the universality deficiency of traditional evaluations.

[0055] Second, dynamic simulation technology for intermittent operating conditions. Breaking through the limitations of continuous steady-state operating condition evaluation, a dynamic thermal-humidity coupling model based on EnergyPlus was developed. For the first time, quantitative simulation of the heating lag time and temperature fluctuation amplitude under intermittent heating / air conditioning mode was achieved, filling the gap in the simulation of actual operating conditions in existing technologies.

[0056] Third, predicting the long-term performance degradation of cement-based materials. A dynamic evolution model is established for parameters such as carbonation depth, freeze-thaw cycle count, and interfacial bond strength. Combined with Fick's second law and durability correction coefficients, this model enables accurate prediction of performance degradation after more than 10 years of service, addressing the short-sightedness of existing evaluations that are based solely on initial performance.

[0057] Fourth, quantitative evaluation of the collaborative performance of multi-functional modules. Innovative indicators such as the thermal bridge effect coefficient at the insulation layer-substrate interface and the accuracy of intelligent control feedback are proposed. Through the coupled calculation of thermal performance scoring formula and interface performance scoring formula, the comprehensive performance index of the integrated wall panel is objectively quantified, overcoming the one-sidedness of single-function evaluation.

[0058] Fifth, a differentiated weighting mechanism for climate zones. Based on the performance requirements of five climate zones—hot summer and cold winter, severe cold, and hot summer and mild winter—a dynamic weighting table for secondary indicators is developed (e.g., the weight of the freeze-thaw resistance indicator in severe cold regions is increased to 20%), and a climate zone correction coefficient (α=0.9-1.1) is provided to ensure that the evaluation results are highly matched with regional adaptability.

[0059] This invention also discloses a multifunctional integrated enclosure structure inner layer construction evaluation system under intermittent working conditions, comprising the following steps: The secondary evaluation index construction module is used to obtain the division results of different building climate zones, obtain the building climate zone to which the building envelope to be evaluated belongs based on the division results, and construct the secondary evaluation index of the inner layer structure of the multi-functional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. The primary evaluation index calculation module is used to score the importance of secondary evaluation indicators, calculate the weight of each secondary evaluation indicator based on the importance score results, and calculate the primary evaluation index based on the weight and importance score results of each secondary evaluation indicator. The quantitative scoring module is used to perform dynamic thermal-humidity coupling simulation and aging simulation of the inner layer structure of the multifunctional integrated enclosure under intermittent working conditions, obtain simulation results, calculate scores for secondary indicators based on simulation results, and obtain quantitative scoring results. The evaluation results module is used to obtain evaluation results based on the primary evaluation index and quantitative scoring results.

[0060] This invention is the first to incorporate cement-based materials' unique characteristics, such as carbonization, freeze-thaw resistance, and interfacial bonding, into its evaluation. Through aging simulation and quantitative formulas, it addresses the issue of existing evaluations neglecting the special properties of cement-based materials, enabling accurate prediction of the long-term performance of wall panels. By simulating intermittent operating conditions and applying differentiated weights based on climate zones, the evaluation results are tailored to different usage scenarios in regions with hot summers and cold winters, avoiding a one-size-fits-all approach. A five-indicator system—thermal, physical, interfacial, functional, and safety—is constructed to quantify the synergistic effect between the cement-based substrate and the multifunctional module, fully reflecting the core advantages of integration. Combined with EnergyPlus simulation and grading standards, it can be directly applied to engineering practice, providing clear guidance for wall panel R&D and selection. By incorporating the effects of aging into the durability correction coefficient, the service life is predicted; safety indicators cover fire resistance and fall resistance, meeting building safety design requirements and filling a gap in existing evaluation methods.

[0061] A schematic diagram of a terminal device according to an embodiment of the present invention. The terminal device of this embodiment includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in the various method embodiments described above. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the various device embodiments described above.

[0062] The computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention.

[0063] The terminal device can be a desktop computer, laptop computer, cloud server, or other device with strong computing power. The terminal device may include, but is not limited to, a processor and memory.

[0064] The optimal choice for the processor is a multi-core high-speed central processing unit (CPU).

[0065] The memory can be used to store the computer program and / or module. The processor implements various functions of the terminal device by running or executing the computer program and / or module stored in the memory and calling the data stored in the memory.

[0066] If the modules / units integrated into the terminal device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0067] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions, characterized in that, Includes the following steps: Obtain the classification results of different building climate zones, obtain the building climate zone to which the building envelope to be evaluated belongs based on the classification results, and construct a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. The importance of the secondary evaluation indicators is scored, the weight of each secondary evaluation indicator is calculated based on the importance scores, and the primary evaluation indicator index is calculated based on the weights and importance scores of each secondary evaluation indicator. Dynamic thermal-humid coupling simulation and aging simulation under intermittent working conditions were performed on the inner layer structure of the multifunctional integrated enclosure structure to obtain simulation results. Based on the simulation results, the secondary indicators were scored and calculated to obtain quantitative scoring results. Evaluation results are obtained based on primary evaluation indexes and quantitative scoring results.

2. The method for evaluating the inner structure of a multifunctional integrated enclosure under intermittent working conditions according to claim 1, characterized in that, The process involves obtaining the classification results of different building climate zones, determining the building climate zone to which the building envelope to be evaluated belongs based on the classification results, and constructing a secondary evaluation index for the inner layer structure of the multifunctional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. This index includes: Construct a secondary evaluation index for the inner layer structure of a multifunctional integrated enclosure structure; Obtain the classification results of different building climate zones, construct a three-level evaluation index based on the climate zone where the building envelope to be evaluated is located, and use the three-level evaluation index to limit the two-level evaluation index to obtain the limited two-level evaluation index.

3. The method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions according to claim 2, characterized in that, The secondary evaluation indicators include: Thermal performance B1, physical performance B2, cement-based interface performance B3, functional modules B4, and safety and durability performance B5; The thermal performance B1 includes dynamic thermal response characteristics, thermal inertia index, rate of change of thermal conductivity after carbonization, and thermal-humidity coupling transfer efficiency. The physical properties B2 include compressive strength, crack resistance, carbonization depth, fire resistance, sound insulation, and waterproofing and impermeability. The cement-based interface performance B3 includes the interfacial bonding strength between the cement-based substrate and the composite layer, the interfacial shear strength, and the interfacial aging stability. The functional module B4 includes thermal insulation efficiency, waterproof coating durability, and the degree of implementation of intelligent control functions; The safety and durability performance B5 includes resistance to freeze-thaw cycles, long-term load deflection, fire resistance to high-temperature bursting, and prediction of fall risk from heights.

4. The method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions according to claim 3, characterized in that, The process involves obtaining the classification results of different building climate zones, constructing a three-level evaluation index based on the climate zone where the building envelope to be evaluated is located, and then using the three-level evaluation index to limit the two-level evaluation index, resulting in the limited two-level evaluation index, including: The classification of different architectural climate zones includes: hot summer and cold winter regions, frigid regions, and hot summer and warm winter regions. When the building climate zone is a hot-summer and cold-winter region, the three-level evaluation indicators include: C11, C12 and C31. Among them, C11 indicates that the intermittent heating thermal response lag time is less than or equal to 4 hours, C12 indicates that the change rate of thermal conductivity after carbonization is less than or equal to 5%, and C31 indicates that the attenuation rate of high-temperature and high-humidity interface bonding strength is less than or equal to 10%. When the building climate zone is a severe cold region, the three-level evaluation indexes include: C13, C21 and C51. Among them, C13 means that the heat loss rate at -20℃ is less than or equal to 8%, C21 means that there are no visible cracks after freeze-thaw, and C51 means that the number of freeze-thaw cycles is greater than or equal to 300. When the building climate zone is a hot summer and warm winter region, the three-level evaluation indicators include: C14, C22 and C32; C14 indicates that the intermittent air conditioning insulation performance ΔT is less than or equal to 3℃; C22 indicates that the high temperature and high humidity carbonization depth is less than or equal to 3mm; C32 indicates that the shear strength of the interface under damp heat aging is greater than or equal to 0.5MPa.

5. The method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions according to claim 1, characterized in that, The calculation of the primary evaluation index based on the weight and importance scores of each secondary evaluation indicator includes: In the formula, For the first The average score of each secondary indicator For the first The weights of each secondary indicator, This is a durability correction factor.

6. The method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions according to claim 5, characterized in that, The step of calculating scores for secondary indicators based on simulation results to obtain quantitative scoring results includes: Calculated using the thermal performance quantitative scoring formula : In the formula, To measure the heat storage coefficient, =11W / (m2 K h0.5), To measure the thermal response time, =4h, The thermal conductivity after carbonization The initial thermal conductivity, To measure actual temperature fluctuations, =5℃, This is a climate zone correction factor; Calculate using the interface performance quantitative scoring formula : In the formula, The interfacial bond strength after aging. ≥0.6MPa , To measure the width of the interface gap, =0.2mm, This is the functional adaptation coefficient.

7. The method for evaluating the inner layer structure of a multifunctional integrated enclosure structure under intermittent working conditions according to claim 6, characterized in that, The process of obtaining evaluation results based on primary evaluation indexes and quantitative scoring results includes: When the primary evaluation index ≥75 points ≥85 points If the score is ≥80, the current evaluation result is excellent. When the primary evaluation index ≥70 points ≥80 points When the score is ≥75, the current evaluation result is good. When the primary evaluation index ≥65 points ≥75 points If the score is ≥70, the current evaluation result is intermediate.

8. A multifunctional integrated enclosure structure inner layer construction evaluation system under intermittent working conditions, characterized in that, include: The secondary evaluation index construction module is used to obtain the division results of different building climate zones, obtain the building climate zone to which the building envelope to be evaluated belongs based on the division results, and construct the secondary evaluation index of the inner layer structure of the multi-functional integrated building envelope based on the building climate zone to which the building envelope to be evaluated belongs. The primary evaluation index calculation module is used to score the importance of secondary evaluation indicators, calculate the weight of each secondary evaluation indicator based on the importance score results, and calculate the primary evaluation index based on the weight and importance score results of each secondary evaluation indicator. The quantitative scoring module is used to perform dynamic thermal-humidity coupling simulation and aging simulation of the inner layer structure of the multifunctional integrated enclosure under intermittent working conditions, obtain simulation results, calculate scores for secondary indicators based on simulation results, and obtain quantitative scoring results. The evaluation results module is used to obtain evaluation results based on the primary evaluation index and quantitative scoring results.

9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1-7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1-7.

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