CN-122022142-A - Method for evaluating inner layer structure of multifunctional integrated enclosure structure under intermittent working condition

CN122022142ACN 122022142 ACN122022142 ACN 122022142ACN-122022142-A

Abstract

The invention discloses a method and a system for evaluating an inner layer structure of a multifunctional integrated building envelope under intermittent working conditions, which are characterized in that a second-level evaluation index of the inner layer structure of the multifunctional integrated building envelope is built according to a building climate zone to which the building envelope to be evaluated belongs, the building climate zone is integrated into the construction of an index system, the evaluation key is automatically adjusted along with the change of the climate zone through a dynamic weight distribution technology, the universality defect of traditional evaluation is overcome, the inner layer structure of the multifunctional integrated building envelope is subjected to dynamic hot-wet coupling simulation and aging simulation under intermittent working conditions, the limitation of continuous steady state working condition evaluation is broken through, the evaluation of a simulation result is scored, the first-level evaluation index of the comprehensive reaction performance is calculated according to the differential weight distribution result of the climate zone, the inner layer structure of the building envelope is evaluated according to the first-level evaluation index of the comprehensive reaction performance and the comprehensive result of the quantized scoring result, the matching of the evaluation result and the regional suitability is ensured, and the evaluation result is more accurate.

Inventors

YANG WEN
ZHANG HAO
FENG LU
CHEN SHANSHAN
Liu Yirou
Hui Fusen
LI MINGRUI
LIU JIAPING

Assignees

西安建筑科技大学

Dates

Publication Date: 20260512
Application Date: 20260120
Priority Date: 20251226

Claims (10)

1. The method for evaluating the inner layer structure of the multifunctional integrated enclosing structure under the intermittent working condition is characterized by comprising the following steps of: Obtaining division results of different building climate areas, obtaining a building climate area to which the enclosure to be evaluated belongs according to the division results, and constructing a secondary evaluation index of an inner layer structure of the multifunctional integrated enclosure according to the building climate area to which the enclosure to be evaluated belongs; Scoring the importance of the secondary evaluation indexes, calculating the weight of each secondary evaluation index according to the importance scoring result, and calculating a primary evaluation index based on the weight of each secondary evaluation index and the importance scoring result; Performing dynamic heat-humidity coupling simulation and aging simulation under intermittent working conditions on the inner layer structure of the multifunctional integrated enclosure structure to obtain a simulation result, and performing scoring calculation on the secondary index based on the simulation result to obtain a quantized scoring result; and obtaining an evaluation result based on the first-level evaluation index and the quantized score result.
2. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 1, wherein the steps of obtaining the division results of different building climate zones, obtaining the building climate zone to which the building envelope to be evaluated belongs according to the division results, and constructing the second-level evaluation index of the inner layer structure of the multifunctional integrated building envelope according to the building climate zone to which the building envelope to be evaluated belongs comprise the following steps: Constructing a secondary evaluation index of the inner layer structure of the multifunctional integrated enclosure structure; And obtaining division results of different building climate areas, constructing three-level evaluation indexes according to the climate areas where the building enclosure to be evaluated is located, limiting the two-level evaluation indexes through the three-level evaluation indexes, and obtaining the limited two-level evaluation indexes.
3. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 2, wherein the second-level evaluation index comprises: thermal property B1, physical property B2, cement-based interface property B3, functional module B4, and safety and durability property B5; the thermal performance B1 comprises dynamic thermal response characteristics, thermal inertia indexes, change rate of thermal conductivity after carbonization and thermal-wet coupling transfer efficiency; the physical properties B2 comprise compressive strength, cracking resistance, carbonization depth, fire resistance level, sound insulation and waterproof impermeability; The cement-based interface performance B3 comprises interface bonding strength, interface shear resistance and interface aging stability of the cement-based base material and the composite layer; the functional module B4 comprises heat preservation efficiency, waterproof coating durability and intelligent regulation and control function realization degree; the safety and durability performance B5 comprises freeze-thawing cycle times, long-term load deflection change, fireproof high-temperature burst resistance and high-altitude falling risk pre-judgment.
4. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 3, wherein the steps of obtaining the division results of different building climate areas, constructing three-level evaluation indexes according to the climate areas where the building envelope to be evaluated is located, limiting the two-level evaluation indexes through the three-level evaluation indexes, and obtaining the limited two-level evaluation indexes comprise the following steps: the division results of the different building climate areas comprise a summer heat winter cooling area, a severe cold area and a summer heat winter heating area; When the building climate zone is a summer hot winter cold zone, three-level evaluation indexes comprise C11, C12 and C31, wherein C11 represents that the delay time of intermittent heating thermal response is less than or equal to 4h, C12 represents that the change rate of the heat conductivity coefficient after carbonization is less than or equal to 5%, and C31 represents that the decay rate of the bonding strength of a high-temperature high-humidity interface is less than or equal to 10%; When the building climate zone is a severe cold zone, three-level evaluation indexes comprise C13, C21 and C51, wherein C13 represents that the low temperature heat loss rate is less than or equal to 8% at-20 ℃, C21 represents that no visible crack exists in the crack resistance after freezing and thawing, and C51 represents that the freezing and thawing resistance cycle time is more than or equal to 300 times; When the building climate zone is a summer hot winter warm area, the three-level evaluation indexes comprise C14, C22 and C32; c14 represents that the heat insulation performance delta T of the intermittent air conditioner is less than or equal to 3℃, C, the high-temperature high-humidity carbonization depth is less than or equal to 3mm, and C32 represents that the shear strength of a humid heat aging interface is more than or equal to 0.5MPa.
5. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 1, wherein the calculating the first-level evaluation index based on the weight and the importance scoring result of each second-level evaluation index comprises: In the formula, Is the first The average score of the two secondary indicators, Is the first The weights of the two secondary indicators are used, Is a durability correction coefficient.
6. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 5, wherein the step of scoring the secondary index based on the simulation result to obtain the quantized scoring result comprises the following steps: Calculation using thermodynamic performance quantization scoring formula : In the formula, For the actual measurement of the thermal storage coefficient, =11W/(m2 K h0.5), In order to measure the thermal response time of the device, =4h, Is the coefficient of thermal conductivity after carbonization, For the initial coefficient of thermal conductivity, For the purpose of actually measuring the temperature fluctuation, =5°C, Correcting coefficients for the climate zone; calculation using interface Performance quantization scoring equation : In the formula, For the interfacial bond strength after aging, ≥0.6MPa, , In order to actually measure the gap width of the interface, =0.2mm, The coefficients are adapted for the function.
7. The method for evaluating the inner layer structure of the multifunctional integrated building envelope under the intermittent working condition of claim 6, wherein the step of obtaining the evaluation result based on the first-level evaluation index and the quantization scoring result comprises the following steps: When the first-level evaluation index is More than or equal to 75 minutes, More than or equal to 85 minutes, More than or equal to 80 time-sharing, the current evaluation result is a priority; When the first-level evaluation index is More than or equal to 70 minutes, More than or equal to 80 minutes, When the time is more than or equal to 75 hours, the current evaluation result is a good grade; When the first-level evaluation index is More than or equal to 65 minutes, More than or equal to 75 minutes, More than or equal to 70 time-sharing, the current evaluation result is a medium level.
8. The utility model provides a multi-functional integrated envelope inlayer structure evaluation system under intermittent type nature operating mode which characterized in that includes: The second-level evaluation index construction module is used for acquiring division results of different building climate areas, acquiring the building climate area to which the enclosure structure to be evaluated belongs according to the division results, and constructing a second-level evaluation index of the inner layer structure of the multifunctional integrated enclosure structure according to the building climate area to which the enclosure structure to be evaluated belongs; The first-level evaluation index calculation module is used for scoring the importance of the second-level evaluation indexes, calculating the weight of each second-level evaluation index according to the importance scoring result, and calculating the first-level evaluation index based on the weight of each second-level evaluation index and the importance scoring result; The quantization scoring module is used for carrying out dynamic heat-humidity coupling simulation and aging simulation under intermittent working conditions on the inner layer structure of the multifunctional integrated enclosure structure, obtaining a simulation result, and carrying out scoring calculation on the secondary index based on the simulation result to obtain a quantization scoring result; and the evaluation result module is used for acquiring an evaluation result based on the first-level evaluation index and the quantized score result.
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 the processor implements the steps of the method according to any of claims 1-7 when the computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1-7.

Description

Method for evaluating inner layer structure of multifunctional integrated enclosure structure under intermittent working condition Technical Field The invention belongs to the technical field of building envelope evaluation, and relates to a method and a system for evaluating an inner layer structure of a multifunctional integrated envelope under intermittent working conditions. Background The heat preservation design principle method of the enclosure structure related to the existing building energy-saving design is derived from the heat preservation and moisture-proof requirements of the residential building continuously heated in the severe cold climate zone, and the structural design adopts an external heat preservation structural mode as far as possible. It is not suitable to implement external heat preservation in a large amount of civil buildings in summer, winter, summer, winter and warm or even in temperate climates. For example, in the residential houses in summer, winter and cold areas, an intermittent heating and air-conditioning energy utilization mode is commonly adopted, and because the energy storage of the enclosure structure is large, the heating and cooling time is long, and the problem of external heat insulation materials is solved, fire hazards exist, so that the external heat insulation system is not suitable. Research shows that the internal heat preservation type has better application effect in the areas. When the air conditioner is operated intermittently, the thermal property of the inner layer material of the wall body is particularly important to the dynamic thermal response characteristic of the inner surface of the wall body, so that the inner layer structure of the innermost side of the enclosure structure is necessary to be studied intensively. The inner layer structure is an important component of the building structure and plays a plurality of important roles of supporting structure, heat insulation, sound insulation, water resistance, decoration, safety and the like in the building. At present, along with the gradual establishment of policy systems and industry systems for intelligent construction and novel building industrialization collaborative development, the assembly type building technology is mature gradually, and the inner layer structure of the integrated wallboard is popularized and applied. Meanwhile, under the policy implementation of development of building materials and energy conservation and emission reduction, the inner layer structure of the wallboard is made of novel materials with high strength, high durability, fireproof, impervious and other excellent performances, integrates the functions of heat preservation, heat insulation, water resistance and the like, and is multifunctional from a single function to multiple functions. However, due to lack of a standardized industrial building part authentication and evaluation system and a production supervision system, a large number of multifunctional integrated inner layer construction parts with poor performance are introduced into the market, and the healthy development of the building industry and the progress of building industrialization are seriously hindered. At present, most of the existing inner layer structure evaluation is unilaterally evaluated aiming at thermal performance or physical performance parameters, the characteristics of the inner layer structure type and the climate characteristics of different areas are not considered in the evaluation, the influence of subjective factors in the evaluation process is large, and the method is difficult to be suitable for the comprehensive performance evaluation of the inner layer structure of the intermittent multifunctional integrated structure. Therefore, it is necessary to establish a set of comprehensive performance evaluation method for the inner layer structure of the multifunctional integrated building envelope, which is more comprehensive and effective and is applicable to different inner layer structure types and different climate areas. The current comprehensive evaluation method for the inner layer structure of the integrated enclosure structure has obvious limitations: The inherent characteristics of the cement-based material, such as increased heat conductivity caused by carbonization in the service process, cracking caused by freeze thawing cycle, bonding aging with the interface of the composite layer (heat preservation/decoration layer) and the like, are specifically considered, and the characteristics directly determine the long-term performance of the wallboard, but do not fall into the evaluation category. Intermittent heating/air conditioning is commonly adopted for buildings in summer, winter, cold, summer, hot, winter and warm weather areas in China, the existing evaluation is mostly based on continuous steady-state working conditions (such as continuous heating in severe cold areas), the dynamic thermal response (such as tem