Farmhouse construction method based on combined prefabricated wallboards

Abstract

The invention relates to the technical field of farm house construction, in particular to a farm house construction method based on combined prefabricated wallboards, which comprises the following steps: pre-burying bolts in foundation concrete of an assembly site according to a farm house prediction model, and sequentially mounting steel columns, steel beams and floor support steel to form a steel structure frame; pre-splicing is carried out; a wallboard edge abrasion model is determined, and the splicing hot air temperature is adjusted; determining a wallboard structure stability processing mode according to the stress distribution diagram, wherein the wallboard structure stability processing mode comprises the step of adjusting the dislocation angle of sawteeth at the edge of the wallboard when the wallboard is spliced, or determining the splicing gap width of rock wool in the wallboard according to the maximum heat transfer coefficient; the steel structure frame and the wall plate structure are spliced according to the splicing hot air temperature and the wall plate structure stability treatment mode to form the farm house outer maintenance structure; and the built-in structure is installed on the farm house outer maintenance structure to form the combined farm house. The structure stability and the heat preservation performance of the farm house are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rural housing construction, and in particular to a method for constructing rural houses based on combined precast wall panels. Background Art

[0002] In the prior art, the prefabricated rural housing structure system mainly includes steps such as foundation treatment, wall panel erection, connection and fixation, and subsequent water and electricity laying. Traditional construction methods mostly adopt on-site wet operations, which have problems such as long construction periods, high labor requirements, and serious environmental pollution. The prefabricated rural houses achieve rapid erection and fixation of walls through the use of precast wall panels, greatly shortening the construction period. However, in the process of erecting wall panels in existing prefabricated rural houses, there are often problems such as low installation accuracy of wall panels and difficulty in ensuring heat insulation effect, resulting in insufficient overall stability of the wall.

[0003] Chinese Patent Publication No.: CN117266567A discloses a method for constructing a prefabricated concrete grid structure rural house, which includes the following steps: S1: Install precast reinforced concrete beams on the foundation floor slab of the house, and reserve columnar frame steel bars at the connection points of every two sections of precast reinforced concrete beams. Then install building blocks, with the lower notch of the building block clamping the precast reinforced concrete beam, and the left and right notch of the building block clamping the reserved columnar frame steel bars; S2: Cast in place the reserved columnar frame steel bars in the notch of the building block on site to form cast-in-place concrete columns; S3: Install precast reinforced concrete beams at the notch above the building block installed in step S1, install building blocks above the precast reinforced concrete beam, and install them sequentially upwards. At the door and window openings, install steel mesh sheets in the side notch of the building block, and then plaster a sand ash layer; S4: Construct sequentially to the elevation of the house according to the above method, and bind the ring beam steel bars in the notch above the uppermost building block; S5: Finally, install a concrete composite floor slab or a formwork-free steel bar truss slab, bind the roof steel bars and the ring beam steel bars, and the reserved columnar frame steel bars extend upwards into the roof steel bars and the ring beam steel bars, and cast the roof and the ring beam concrete in one body on site. It can be seen that the method for constructing a prefabricated concrete grid structure rural house has problems that due to the rigid installation of the steel structure frame and the wall panel splicing, deformation is caused by local stress concentration, resulting in error accumulation and further increasing the wear amount, and due to the edge wear caused by friction or installation impact at the wall panel splicing, the heat insulation performance is decreased. Summary of the Invention

[0004] Therefore, the present invention provides a method for constructing rural houses based on combined precast wall panels to overcome the problems in the prior art that due to the rigid installation of the steel structure frame and the wall panel splicing, deformation is caused by local stress concentration, resulting in error accumulation and further increasing the wear amount, and due to the edge wear caused by friction or installation impact at the wall panel splicing, the heat insulation performance is decreased.

[0005] To achieve the above object, the present invention provides a method for constructing rural houses based on modular precast wall panels, including: Embed bolts in the foundation concrete at the assembly site according to the rural house prediction model, and sequentially install steel columns, steel beams, and floor support steel to form a steel structure framework; Respectively obtain the stress distribution diagram of the steel structure framework and the maximum heat transfer coefficient of the steel column; Pre-splice the pre-spliced wall panels and the steel structure framework, and detect the morphological deviation amount between the pre-spliced wall panels and the simulated wall panels in the rural house prediction model within a certain unit splicing duration, the impact load borne by the pre-spliced wall panels, and the temperature change amount at the splicing joint between the pre-spliced wall panels and the steel structure framework; Construct a wall panel edge wear model based on the morphological deviation amount, the impact load, and the temperature change amount, and adjust the splicing hot air temperature according to the wall panel edge wear model; Determine the wall panel structure stability treatment method according to the stress distribution diagram, including adjusting the misalignment angle of the serrations at the edge of the wall panel during splicing, or determining the splicing gap width between the rock wool in the wall panel in the rural house prediction model according to the maximum heat transfer coefficient; Splice the steel structure framework and the wall panel structure according to the splicing hot air temperature and the wall panel structure stability treatment method to form the external maintenance structure of the rural house; Install the interior structure on the external maintenance structure of the rural house to form a combined rural house.

[0006] Further, constructing a wall panel edge wear model based on the morphological deviation amount, the impact load, and the temperature change amount includes: Obtain the measured three-dimensional data of several sampling positions at the connection between the pre-spliced wall panel and the steel structure framework; Compare the measured three-dimensional data with the theoretical three-dimensional data at the corresponding positions of the simulated wall panels in the rural house prediction model to output the morphological deviation amount; Construct the wall panel edge wear model based on the morphological deviation amount, the impact load, and the temperature change amount.

[0007] Further, adjusting the splicing hot air temperature according to the wall panel edge wear model includes: Obtain the wear depth of the pre-spliced wall panel under the current working condition in the wall panel edge wear model; Calculate the wall panel wear rate according to the wear depth; If the wall panel wear rate is greater than or equal to the preset wear rate, increase the splicing hot air temperature.

[0008] Further, the wall panel wear rate is the ratio of the difference between the actual height of the pre-spliced wall panel before splicing and the wear depth to the actual height.

[0009] Further, adjusting the misalignment angle of the sawtooth at the edge of the wall panel during splicing includes: Comparing the stresses in the stress distribution diagram with a preset first stress and a preset second stress respectively; If the stress is greater than or equal to the preset second stress, it is classified as a load-bearing area, and the misalignment angle of the sawtooth at the edge of the wall panel during splicing in the load-bearing area is increased; If the stress is greater than or equal to the preset first stress and less than the preset second stress, it is classified as a transition area, and the maximum heat transfer coefficient of the steel column corresponding to the transition area is obtained; If the stress is less than the preset first stress, it is classified as a buffer area; Wherein, the preset first stress is less than the preset second stress.

[0010] Further, the misalignment angle is the included angle formed by the center line of the tooth peak of the sawtooth at the edge of the wall panel and the center line of the tooth peak of the sawtooth at the edge of another wall panel to be spliced therewith.

[0011] Further, determining the splicing gap width between the rock wool in the wall panel in the rural housing prediction model according to the maximum heat transfer coefficient includes: Comparing the maximum heat transfer coefficient of the steel column corresponding to the transition area with a preset maximum heat transfer coefficient; If the maximum heat transfer coefficient is greater than or equal to the preset maximum heat transfer coefficient, the splicing gap width between the rock wool in the wall panel is increased.

[0012] Further, the splicing gap width is positively correlated with the maximum heat transfer coefficient.

[0013] Further, the impact load is the maximum stress received by the pre-spliced wall panel within the unit splicing duration.

[0014] Further, the temperature change amount is the difference between the temperature at the splicing location at the end of the unit splicing duration and the temperature at the splicing location at the start of the unit splicing duration.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows. In the method of the present invention, based on the rural housing prediction model and the pre-assembly of the steel structure, during the pre-assembly process, due to the morphological deviation caused by the rigid structure assembly, the impact load generated at the splicing point, and the increase in the temperature change amount caused by the splicing friction, local stress concentration and deformation occur, resulting in the accumulation of errors and an increase in the wear amount. By determining the wear model of the wall panel edge and outputting the compensation value of the splicing fastening torque, the chain diffusion of assembly errors is reduced. Since the steel structure is easily affected by environmental factors during the assembly process, such as temperature, humidity changes, and wind force, etc., small changes occur in the size and shape of the steel structure frame, which in turn affects the installation accuracy of the wall panel. By determining the treatment method for the structural stability of the wall panel, the local overload risk after the splicing of the rural housing is reduced, and thus the construction quality and construction efficiency of the rural housing are improved. By adjusting the width of the rock wool splicing gap according to the maximum heat transfer coefficient, the increase in heat transfer performance caused by uneven stress is reduced, and further the accuracy and stability of the wall panel installation are improved.

[0016] Furthermore, in the method of the present invention, by determining the wear model of the wall panel edge, due to manufacturing errors, installation errors, or material deformation caused by the environment and transportation, etc., a morphological deviation occurs between the actual splicing and the prediction model. When the wall panel is spliced with the steel structure frame, local wear, deformation, and an increase in impact load due to the large clamping force occur at the edge of the wall panel. Due to the thermal expansion and contraction of the material caused by the temperature change in the environment of the rural housing assembly site or the assembly friction, the fitting accuracy between the wall panel and the steel structure frame is reduced. By predicting the wear condition of the wall panel edge, by increasing the hot air temperature during splicing and using the material expansion to fill the wear gap, when it naturally contracts after cooling, the contact pressure is maintained by the bolt pre-tightening force to compensate for the wear gap, thereby improving the fitting accuracy and stability between the wall panel and the steel structure frame.

[0017] Furthermore, in the method of the present invention, by adjusting the misalignment angle of the sawteeth at the edge of the wall panel during wall panel splicing, due to geometric shape or size changes such as holes, notches, concave corners, and cross-section mutations in the steel structure members, the main stress line will bend when bypassing these defects, resulting in a stress peak along the force action direction at the edge of the defect. The high stress area is prone to structural failure due to stress concentration, such as steel beam deformation and wall panel cracking. By increasing the misalignment angle of the sawteeth in the load-bearing area and dispersing the stress by changing the included angle of the meshing line, the local overload risk is reduced, and the structural stability of the rural housing is increased.

[0018] Furthermore, in the method of the present invention, by determining the width of the splicing gap between the rock wool in the wall panel of the rural house prediction model, the stress of the steel column in the transition area is uneven, there are many gaps, holes or loose connection nodes, which leads to an increase in heat transfer in this area. Furthermore, heat is transferred from the steel column to the interior of the wall, forming a thermal bridge effect and reducing the overall insulation performance. By increasing the width of the splicing gap to form a local airtight cavity, the low thermal conductivity of air is used to reduce heat transfer, effectively alleviating the thermal bridge effect and improving the wall insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic diagram of the overall structure of a combined rural house in the rural house construction method based on combined precast wall panels according to an embodiment of the present invention; Figure 2 FIG. is a general flow chart of the rural house construction method based on combined precast wall panels according to an embodiment of the present invention; Figure 3 FIG. is a flow chart of adjusting the misalignment angle of the serrations at the edge of the wall panel when splicing the wall panels in the rural house construction method based on combined precast wall panels according to an embodiment of the present invention; Explanation of the reference numerals in the drawings: 1 - roof, 2 - floor slab, 3 - floor, 4 - doors and windows, 5 - photovoltaic panel, 6 - wall panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives and advantages of the present invention clearer, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0022] It should be noted that in the description of the present invention, the terms indicating the direction or position relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or position relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 as shown, which are respectively the overall structural schematic diagram, the overall flow chart, and the flow chart for adjusting the misalignment angle of the serrations at the edge of the wall panel during the splicing of the combined rural house in the method for building a rural house based on combined precast wall panels according to the embodiments of the present invention. A method for building a rural house based on combined precast wall panels according to an embodiment of the present invention includes: Embed bolts in the foundation concrete at the assembly site according to the rural house prediction model, and sequentially install steel columns, steel beams, and floor 2 supports to form a steel structure framework; Respectively obtain the stress distribution diagram of the steel structure framework and the maximum heat transfer coefficient of the steel column; Pre-splice the pre-spliced wall panel and the steel structure framework, and detect the morphological deviation amount between the pre-spliced wall panel and the simulated wall panel 6 in the rural house prediction model within a certain unit splicing duration, the impact load borne by the pre-spliced wall panel, and the temperature change amount at the splicing joint between the pre-spliced wall panel and the steel structure framework; Construct an edge wear model of the wall panel 6 according to the morphological deviation amount, the impact load, and the temperature change amount, and adjust the splicing hot air temperature according to the edge wear model of the wall panel 6; Determine the wall panel structure stability treatment method according to the stress distribution diagram, including adjusting the misalignment angle of the serrations at the edge of the wall panel during splicing, or determining the splicing gap width between the rock wool in the wall panel in the rural house prediction model according to the maximum heat transfer coefficient; Splice the steel structure framework and the wall panel structure according to the splicing hot air temperature and the wall panel structure stability treatment method to form an outer maintenance structure of the rural house; Install an interior structure on the outer maintenance structure of the rural house to form a combined rural house.

[0025] Specifically, the splicing surface of the wall panel 6 is processed into a serrated shape.

[0026] Specifically, the process of establishing the rural house prediction model is to construct a physical three-dimensional model according to the assembly drawings of the rural house, the soil bearing capacity of the assembly site, and the compressive strength of the rod structure framework, and perform mechanical simulation of the assembly using finite element analysis software such as ANSYS and ABAQUS.

[0027] Specifically, the maximum heat transfer coefficient of the steel column is detected by a guarded hot plate apparatus.

[0028] Specifically, the process of obtaining the stress distribution map includes: Recording the strain data during the assembly process through fiber Bragg grating sensors and converting it into stress values through Hooke's law; Calculating the magnitude and direction of the principal stress at each point through the triaxial strain rosette data.

[0029] Using BIM to draw the stress distribution map.

[0030] In implementation, the method of the present invention, through the pre - splicing of the rural housing prediction model and the steel structure, due to the morphological deviation caused by the rigid structure splicing during the pre - splicing process, the impact load generated at the splicing joint, and the increase in the temperature change amount caused by the splicing friction, resulting in local stress concentration and deformation, leading to the accumulation of errors and an increase in the wear amount. By determining the wall panel edge wear model and outputting the splicing fastening torque compensation value, the chain - like diffusion of assembly errors is reduced; since the steel structure is easily affected by environmental factors during the assembly process, such as temperature, humidity changes, and wind force, etc., resulting in small changes in the size and shape of the steel structure frame, which in turn affects the installation accuracy of the wall panel. By determining the treatment method for the structural stability of the wall panel, the local overload risk after the splicing of the rural housing is reduced, and thus the construction quality and construction efficiency of the rural housing are improved. By adjusting the width of the rock wool splicing gap according to the maximum heat transfer coefficient, the increase in heat transfer performance caused by uneven stress is reduced, and further the accuracy and stability of the wall panel installation are improved.

[0031] Specifically, constructing the wall panel 6 edge wear model according to the morphological deviation amount, the impact load, and the temperature change amount includes: Obtaining the measured three - dimensional data of several sampling positions at the connection between the pre - spliced wall panel and the steel structure frame; Comparing the measured three - dimensional data with the theoretical three - dimensional data of the corresponding positions of the simulated wall panel 6 in the rural housing prediction model to output the morphological deviation amount; Constructing the wall panel 6 edge wear model based on the morphological offset amount, the impact load, and the temperature change amount.

[0032] Specifically, the temperature change amount is detected by an infrared sensor.

[0033] Specifically, the process of comparing the measured three - dimensional data with the theoretical three - dimensional data of the rural housing prediction model to output the morphological deviation amount includes: Aligning the measured three - dimensional data with the theoretical CAD model of the rural housing prediction model and calculating the normal offset amount and the tangential offset amount of each sampling point; Substitute the normal offset and tangential offset into the Euclidean norm to calculate the form deviation.

[0034] Specifically, the measured three-dimensional data is detected by a laser scanner.

[0035] Specifically, under the conditions of an annual average rainfall of 1200 mm and a groundwater depth of 15 m, the unit splicing duration is 1 min.

[0036] Specifically, the impact load is detected by fiber Bragg grating sensors installed on the pre-spliced wall panels.

[0037] Specifically, the process of constructing the edge wear model of the wall panel 6 with the form offset, impact load, and temperature change amount includes: Align the form offset, impact load, and temperature change amount according to the time series; Establish a non-linear function of the form offset, impact load, and temperature change amount. The impact load is constrained by the law of conservation of momentum, the temperature change amount is coupled by the thermal expansion equation and thermal stress, and learning is carried out according to the current regression model; Use the Archard wear formula as the basic model for iterative learning to output the edge wear model of the wall panel 6.

[0038] Specifically, the impact load is the maximum stress received by the pre-spliced wall panel within the unit splicing duration, and the temperature change amount is the difference between the temperature at the splicing location at the end of the unit splicing duration and the temperature at the splicing location at the start of the unit splicing duration.

[0039] Specifically, adjusting the splicing hot air temperature according to the edge wear model of the wall panel 6 includes: Obtain the wear depth of the pre-spliced wall panel under the current working conditions in the edge wear model of the wall panel; Calculate the wall panel wear rate according to the wear depth; If the wall panel wear rate is greater than or equal to the preset wear rate, increase the splicing hot air temperature.

[0040] Specifically, the splicing hot air temperature is adjusted by adjusting the heating temperature of the hot air gun.

[0041] Specifically, the wall panel wear rate is the ratio of the difference between the actual height of the pre-spliced wall panel before splicing and the wear depth to the actual height.

[0042] Specifically, under the conditions that the length, width, and height of the steel structure frame are 7 m, 4 m, and 6 m respectively, and the steel column is a 50X50 mm square steel, the general value range of the preset wear rate is [0.2%, 0.9%], and the preferred embodiment of the preset wear amount is 0.4%.

[0043] Those skilled in the art can understand that the optional range of the preset wear rate and the preferred embodiments provided in this embodiment are the values that best solve the technical problems of the technical solution of the present invention under the conditions that the length, width, and height of the steel structure frame in this embodiment are 7m, 4m, and 6m respectively, and the steel column is a 50X50mm square steel. In actual applications or experiments, those skilled in the art can adaptively adjust the preset wear rate according to the actual application environment and application scenarios.

[0044] In implementation, if the difference between the wear amount of the wall panel 6 and the preset wear amount is within 0.1%, the splicing hot air temperature is increased to 1.1 times the original. If the difference between the wear amount of the wall panel 6 and the preset wear amount exceeds 0.1%, for every 0.1% exceeding, the temperature of the splicing hot air is increased by 1°C. For example, if the difference between the wear amount of the wall panel 6 and the preset wear amount is 0.3% and the current splicing hot air temperature is 40°C, then the splicing hot air temperature is increased to 40°C × 1.1 + 1°C + 1°C = 46°C.

[0045] In implementation, the method of the present invention determines the edge wear model of the wall panel 6. Due to manufacturing errors, installation errors, or material deformation caused by the environment and transportation, there is a morphological deviation between the actual splicing and the prediction model. When the wall panel 6 is spliced with the steel structure frame, it causes local wear, deformation, and increased impact load due to the large clamping force at the edge of the wall panel 6. Due to the temperature change caused by the environment or assembly friction at the rural housing assembly site, the thermal expansion and contraction of the material increase, thereby reducing the fitting accuracy between the wall panel 6 and the steel structure frame. By predicting the wear condition of the edge of the wall panel 6, by increasing the splicing hot air temperature, using material expansion to fill the wear gap, when it naturally shrinks after cooling, the contact pressure is maintained by the bolt pre-tightening force to compensate for the wear gap, improving the fitting accuracy and stability between the wall panel 6 and the steel structure frame.

[0046] Specifically, adjusting the misalignment angle of the serrations at the edge of the wall panel 6 during splicing includes: Comparing the stresses in the stress distribution diagram with a preset first stress and a preset second stress respectively; If the stress is greater than or equal to the preset second stress, it is classified as a bearing area, and the misalignment angle of the serrations at the edge of the wall panel 6 during splicing in the bearing area is increased; If the stress is greater than or equal to the preset first stress and less than the preset second stress, it is classified as a transition area, and the maximum heat transfer coefficient of the steel column corresponding to the transition area is obtained; If the stress is less than the preset first stress, it is classified as a buffer area; Wherein, the preset first stress is less than the preset second stress.

[0047] Specifically, the dislocation angle is the included angle formed by the center line of the tooth crest of the serrations on the edge of the wall panel 6 and the center line of the tooth crest of the serrations on the edge of another wall panel 6 that is spliced thereto.

[0048] Specifically, under the condition that the length, width and height of the steel structure frame are 7m, 4m and 6m respectively, and the steel columns are 50X50mm square steel, the preset first stress is 30% of the yield strength of the steel column, and the preset second stress is 80% of the yield strength of the steel column.

[0049] Specifically, the maximum value of the dislocation angle adjustment shall not exceed 45°.

[0050] In implementation, for every 1% increase in the difference between the stress and the preset second stress in terms of the yield strength of the steel column, the dislocation angle increases by 0.2°. For example, if the difference between the stress and the preset second stress is 3% of the yield strength of the steel column and the current dislocation angle is 1°, then the dislocation angle increases to 1° + 0.2° × 3 = 1.6°.

[0051] In implementation, the method of the present invention adjusts the dislocation angle of the serrations on the edge of the wall panel 6 during the splicing of the wall panels 6. Since there are changes in geometric shapes or dimensions such as holes, notches, concave corners, and cross-section mutations in the steel structure members, the main stress line will bend when bypassing these defects, resulting in stress peaks along the direction of the force action at the edge of the defects. The high-stress area is prone to structural failure due to stress concentration, such as deformation of the steel beam and cracking of the wall panel 6. By increasing the serration dislocation angle in the load-bearing area and dispersing the stress by changing the included angle of the meshing line, the risk of local overload is reduced, and the stability of the rural housing structure is increased.

[0052] Specifically, determining the splicing gap width between the rock wool in the wall panel in the rural housing prediction model according to the maximum heat transfer coefficient includes: Comparing the maximum heat transfer coefficient of the steel column corresponding to the transition region with the preset maximum heat transfer coefficient; If the maximum heat transfer coefficient is greater than or equal to the preset maximum heat transfer coefficient, increase the splicing gap width between the rock wool in the wall panel.

[0053] Specifically, the splicing gap width is positively correlated with the maximum heat transfer coefficient.

[0054] Specifically, the splicing gap width is the minimum distance of the interval formed between the adjacent rock wool in the wall panel.

[0055] Specifically, under the condition that the length, width and height of the steel structure frame are 7m, 4m and 6m respectively, and the steel columns are 50X50mm square steel, the general value range of the preset maximum heat transfer coefficient is [0.04 W / (m·K), 0.05 W / (m·K)], and the preferred embodiment of the preset maximum heat transfer coefficient is 0.046 W / (m·K).

[0056] Those skilled in the art can understand that the optional range of the preset maximum heat transfer coefficient and the preferred embodiments provided in this embodiment are the values that best solve the technical problems of the technical solution of the present invention under the conditions that the length, width and height of the steel structure frame are 7m, 4m and 6m respectively, and the steel column is a square steel of 50X50mm. In actual applications or experiments, those skilled in the art can make adaptive adjustments to the preset maximum heat transfer coefficient according to the actual application environment and application scenarios.

[0057] In implementation, if the difference between the maximum heat transfer coefficient and the preset maximum heat transfer coefficient increases by 0.001 W / (m·K) each time, the splicing gap width increases by 0.5 mm. For example, if the difference between the maximum heat transfer coefficient and the preset maximum heat transfer coefficient is 0.003 W / (m·K) and the current splicing gap width is 0s, the splicing gap width increases to 0.5 mm × 3 = 1.5 mm.

[0058] In implementation, the method of the present invention determines the splicing gap width between the rock wool in the wall panel in the rural housing prediction model. The stress of the steel column in the transition area is uneven, there are many gaps, holes or loose connection nodes, which leads to an increase in heat transfer in this area, and then leads to heat transfer from the steel column to the interior of the wall, forming a thermal bridge effect and reducing the overall insulation performance. By increasing the splicing gap width to form a local sealed air cavity, the low thermal conductivity of air is used to reduce heat transfer, effectively alleviating the thermal bridge effect and improving the wall insulation performance.

[0059] Specifically, the interior structure includes a roof 1, a floor 3, doors and windows 4, a photovoltaic panel 5, an interior wall, as well as a floor slab 2 and rock wool in the wall panel.

[0060] Specifically, the wall panel structure includes wall panels of several sizes.

[0061] Specifically, several pieces of rock wool are laid between the wall panel and the interior wall.

[0062] Specifically, the wall panel 6 adopts a plate based on an aluminum honeycomb. Among them, the components of the plate based on the aluminum honeycomb from the inside to the outside are aluminum profiles, auxiliary materials, fiberglass + polyurethane, an aluminum core honeycomb, a galvanized steel plate, angle codes for connecting with the main steel structure module, and butterfly cores for use as plate module connectors. Examples of auxiliary materials include ceramic tiles, wood veneers, stone materials, rock slabs, and ceramic blank plates.

[0063] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A construction method for rural houses based on combined precast wall panels, characterized in that, Including: Embed bolts in the foundation concrete at the assembly site according to the rural housing prediction model, and successively install steel columns, steel beams, and floor support steels to form a steel structure framework; Obtain the stress distribution diagram of the steel structure framework and the maximum heat transfer coefficient of the steel column respectively; Pre-splice the pre-spliced wall panel and the steel structure framework, and detect the morphological deviation amount between the pre-spliced wall panel and the simulated wall panel in the rural housing prediction model, the impact load borne by the pre-spliced wall panel, and the temperature change amount at the splicing joint between the pre-spliced wall panel and the steel structure framework within a certain unit splicing duration; Construct a wall panel edge wear model according to the morphological deviation amount, the impact load, and the temperature change amount, and adjust the splicing hot air temperature according to the wall panel edge wear model; Determine the wall panel structure stability treatment method according to the stress distribution diagram, including adjusting the misalignment angle of the sawtooth at the edge of the wall panel during splicing, or determining the splicing gap width between the rock wool in the wall panel in the rural housing prediction model according to the maximum heat transfer coefficient; Splice the steel structure framework and the wall panel structure according to the splicing hot air temperature and the wall panel structure stability treatment method to form an outer maintenance structure of the rural house; Install an interior structure on the outer maintenance structure of the rural house to form a combined rural house.

2. The method for constructing rural houses based on combined precast wall panels according to claim 1, wherein Constructing a wall panel edge wear model according to the morphological deviation amount, the impact load, and the temperature change amount includes: Obtain the measured three-dimensional data of several sampling positions at the connection between the pre-spliced wall panel and the steel structure framework; Compare the measured three-dimensional data with the theoretical three-dimensional data at the corresponding positions of the simulated wall panel in the rural housing prediction model to output the morphological deviation amount; Construct the wall panel edge wear model based on the morphological deviation amount, the impact load, and the temperature change amount.

3. The method for building rural houses based on combined precast wall panels according to claim 2, characterized in that Adjusting the splicing hot air temperature according to the wall panel edge wear model includes: Obtain the wear depth of the pre-spliced wall panel under the current working condition in the wall panel edge wear model; Calculate the wall panel wear rate according to the wear depth; If the wall panel wear rate is greater than or equal to the preset wear rate, increase the splicing hot air temperature.

4. The method for building rural houses based on combined precast wall panels according to claim 3, characterized in that, The wall panel wear rate is the ratio of the difference between the actual height of the pre-spliced wall panel before splicing and the wear depth to the actual height.

5. The method for constructing rural houses based on combined precast wall panels according to claim 4, characterized in that, Adjusting the misalignment angle of the sawtooth at the edge of the wall panel during splicing includes: Compare the stresses in the stress distribution diagram with a preset first stress and a preset second stress respectively; If the stress is greater than or equal to the preset second stress, it is classified as a load-bearing area, and the misalignment angle of the sawtooth at the edge of the wall panel during splicing in the load-bearing area is increased; If the stress is greater than or equal to the preset first stress and less than the preset second stress, it is classified as a transition area, and the maximum heat transfer coefficient of the steel column corresponding to the transition area is obtained; If the stress is less than the preset first stress, it is classified as a buffer area; Wherein, the preset first stress is less than the preset second stress.

6. The method for building rural houses based on combined precast wall panels according to claim 5, characterized in that The misalignment angle is the included angle formed by the center line of the tooth peak of the sawtooth at the edge of the wall panel and the center line of the tooth peak of the sawtooth at the edge of another wall panel to which it is spliced.

7. The method for building rural houses based on combined precast wall panels according to claim 6, characterized in that Determining the splicing gap width between the rock wool in the wall panel in the predicted model of the rural house according to the maximum heat transfer coefficient includes: Comparing the maximum heat transfer coefficient of the steel column corresponding to the transition region with the preset maximum heat transfer coefficient; If the maximum heat transfer coefficient is greater than or equal to the preset maximum heat transfer coefficient, increase the splicing gap width between the rock wool in the wall panel.

8. The method for constructing rural houses based on combined precast wall panels according to claim 7, characterized in that, The splicing gap width is positively correlated with the maximum heat transfer coefficient.

9. The method for building rural houses based on combined precast wall panels according to claim 8, characterized in that, The impact load is the maximum stress received by the pre-spliced wall panel within the unit splicing duration.

10. The method for constructing rural houses based on combined precast wall panels according to claim 9, characterized in that, The temperature change amount is the difference between the temperature at the splicing location at the end of the unit splicing duration and the temperature at the splicing location at the start of the unit splicing duration.

Images