A method for constructing a factory building sound insulation system

Abstract

The invention provides a method for constructing a factory building sound insulation system, which belongs to the technical field of building construction. The factory building sound insulation system comprises a basic wall, an autoclaved block and a sound insulation board. The basic wall is a wall of a factory building, and is used to provide a fixed foundation for the autoclaved block and the sound insulation board; the autoclaved blocks are multiple, and are respectively fixed inside the basic wall, and are used to isolate the internal sound of the basic wall from the outside through concrete pouring gaps; the sound insulation board is fixed on the surface of the basic wall, and the thickness of the sound insulation board is 3-5 cm, and is used to absorb the noise that is not completely isolated by the autoclaved blocks; the autoclaved blocks and the sound insulation board cooperate with each other, and are used to jointly constitute the first and second lines of defense for sound insulation of the basic wall; the problem that the existing method for constructing a factory building sound insulation system is difficult to adjust the construction process according to the sound size, which is easy to cause a decrease in efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular, relates to a method for constructing a factory building sound insulation system. Background Art

[0002] The sound insulation technology of the factory sound insulation system involves many aspects, including structural design, material selection, vibration control and acoustic treatment. The overall structural design of the factory is an important factor affecting the sound insulation effect. Using sound insulation design building structures, such as partition walls, ceilings, and floors, can help reduce the spread of sound. The quality and sealing of the structure are also key to prevent the sound from spreading through cracks or gaps. Choosing materials with good sound insulation performance is key. For example, materials with higher density are generally more soundproof. Sound-absorbing materials such as sound-absorbing panels and sound-absorbing fabrics can help reduce the reflection and propagation of sound. The propagation of sound is usually accompanied by vibration. The use of technologies such as sound insulation supports and shock-absorbing devices can effectively reduce the spread of vibration, thereby reducing the transmission of sound. Air transmission is one way of sound transmission. Using well-sealed doors and windows, as well as using sound insulation design in the ventilation system, can help reduce airborne sound. Using sound-absorbing materials such as sound-absorbing panels and sound-absorbing carpets inside the factory can reduce the reflection and resonance of internal sound and improve the comfort of the indoor environment. Identifying and controlling noise sources are key steps in sound insulation. The use of low-noise equipment, soundproof enclosures and other technologies can effectively reduce the generation of noise sources.

[0003] The existing method of constructing factory sound insulation systems makes it difficult to adjust the construction process according to the sound level, which easily leads to the problem of reduced efficiency. Summary of the invention

[0004] In view of this, the present invention provides a method for constructing a factory sound insulation system, which can solve the problem that the existing method for constructing a factory sound insulation system is difficult to adjust the construction process according to the sound volume, which easily leads to reduced efficiency.

[0005] The present invention is achieved in that:

[0006] A first aspect of the present invention provides a factory sound insulation system, which includes a basic wall, autoclaved blocks and sound insulation boards, wherein the basic wall is the wall of the factory, and is used to provide a fixed foundation for the autoclaved blocks and the sound insulation boards; there are multiple autoclaved blocks, which are fixed inside the basic wall, and the gaps are poured with concrete to isolate the internal sound of the basic wall from the outside; the sound insulation board is fixed on the surface of the basic wall, and the thickness of the sound insulation board is 3-5 cm, and is used to absorb the noise that is not completely isolated by the autoclaved blocks; the autoclaved blocks and the sound insulation boards cooperate with each other to jointly constitute the first and second lines of defense for sound insulation of the basic wall.

[0007] The technical effects of a factory sound insulation system provided by the present invention are as follows: by setting the basic wall, support is provided for the autoclaved blocks and the sound insulation board; by setting the autoclaved blocks, the internal sound of the basic wall is isolated from the outside; by setting the sound insulation board, the noise that is not completely isolated by the autoclaved blocks is absorbed.

[0008] On the basis of the above technical solution, a factory building sound insulation system of the present invention can also be improved as follows:

[0009] Among them, the sound insulation board is divided into an inner panel, an outer panel and sound insulation rock wool, the outer panel is fixed on the foundation wall, the sound insulation rock wool is arranged between the inner panel and the outer panel, the inner panel is provided with an opening area and a flat plate area, the opening area and the flat plate area are arranged at intervals, and a plurality of sound absorbing holes are arranged on the opening area; the flat plate area is bonded and connected to the sound insulation rock wool by an adhesive.

[0010] Furthermore, the size and quantity of the autoclaved building blocks are set according to the noise level.

[0011] A second aspect of the present invention provides a method for constructing a factory building sound insulation system, wherein the specific operation steps include:

[0012] S10: The construction personnel use a tape measure and a protractor to measure the construction position of the foundation wall, determine the foundation conditions, input the data into the Revit software, and construct a BIM model of the foundation wall;

[0013] S20: The construction personnel roughly divide the BIM model of the foundation wall using a region growing algorithm, measure the pitch, intensity and duration of the sound in multiple time periods in each divided area, and determine the range of the sound in each area around the foundation wall;

[0014] S30: The construction personnel roughly re-divide the BIM model according to the sound ranges of different areas;

[0015] S40: The construction personnel calculate and extract the normal vector of the point cloud data of the basic wall after the rough division, and then project the point cloud data onto the tangent plane, and use the maximum value of the angle between the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane to extract the boundary point of the area;

[0016] S50: The construction personnel obtain the coplanar points where the two regions intersect according to the distance threshold from the remaining points to the extracted boundary points, and the coplanar points can make up for the missing intersection point data of the two planes caused by the region growing algorithm; the roughly extracted plane points are combined with the corresponding coplanar points to obtain the optimal plane segmentation, and the BIM model of the foundation wall is divided;

[0017] S60: Construction workers cut the basic materials for constructing the basic wall according to the divided areas;

[0018] S70: The construction personnel determine the size of the autoclaved blocks according to the maximum sound measured above;

[0019] S80: Fixing the plurality of autoclaved blocks inside the basic wall respectively, and fixing the sound insulation board on the surface of the basic wall, thereby completing the construction of the factory building sound insulation system.

[0020] The technical effects of a factory building sound insulation system construction method provided by the present invention are as follows: by using a tape measure and a protractor to measure the construction position of the foundation wall, determine the basic conditions, input the data into the Revit software, and construct a foundation wall BIM model, so as to facilitate the grasp of the structure of the foundation wall and facilitate its segmentation; by using a regional growing algorithm to roughly divide the foundation wall BIM model, measure the pitch, sound intensity and sound length of multiple time periods in each divided area, determine the range of sound in each area around the foundation wall, and determine the thickness of the foundation wall, so as to make the construction more accurate; by re-roughly dividing the BIM model according to the sound range of different areas, calculate and extract the normal vector of the point cloud data of the roughly divided foundation wall, and then project the point cloud data onto the tangent plane, and use the point on the tangent plane and the point on the tangent plane to compare the normal vector. The boundary points of the area are extracted by taking the maximum value of the angle between the vectors formed between the adjacent points, and the coplanar points where the two areas intersect are obtained according to the distance threshold from the remaining points to the extracted boundary points. The coplanar points can make up for the missing two-plane intersection point data caused by the regional growing algorithm; the optimal plane segmentation is obtained by combining the roughly extracted plane points with the corresponding coplanar points, and the BIM model of the basic wall is divided to facilitate the construction of the basic wall; the size of the autoclaved building blocks is determined according to the maximum sound measured above, which is convenient for production and enhanced sound insulation effect; a plurality of the autoclaved building blocks are respectively fixed inside the basic wall, and the sound insulation board is fixed on the surface of the basic wall to complete the construction of the factory sound insulation system; the existing factory sound insulation system construction method can solve the problem that it is difficult to adjust the construction process according to the sound size, which is easy to cause a decrease in efficiency.

[0021] On the basis of the above technical solution, a method for constructing a factory building sound insulation system of the present invention can also be improved as follows:

[0022] Furthermore, the specific steps of determining the size of the autoclaved building block according to the maximum sound measured above include:

[0023] The first step is to establish a double-layer model of the autoclaved block size planning consisting of a lower operation layer objective function of the manufacturing difficulty determined according to the autoclaved block size and an objective function of the sound insulation effect determined according to the autoclaved block size;

[0024] The second step is to determine the constraint conditions of the objective functions of the operation layer and the planning layer respectively;

[0025] The third step is to solve the double-layer model under the constraints of the operation layer and the planning layer respectively, and output the optimal difficulty of making the autoclaved building blocks and the sound insulation effect, so as to plan the size of the autoclaved building blocks according to the optimal difficulty of making the autoclaved building blocks and the sound insulation effect.

[0026] Among them, the objective function of the operation layer is:

[0027] min F1=C+T+S+D+Y+M;

[0028] F1 represents the difficulty percentage of the autoclaved block production, min F1 represents the minimum value of the difficulty percentage of the autoclaved block production, C represents the raw material cost rate, T represents the ratio of the production time to the time of producing the entire autoclaved block production, S represents the production efficiency, D represents the ratio of the size of the autoclaved block to the size of the entire autoclaved block, Y represents the transportation efficiency, and M represents the machine wear rate;

[0029] The objective function of the planning layer is:

[0030]

[0031] F2 represents the sound insulation effect of the autoclaved block, min F2 represents the minimum sound insulation effect of the autoclaved block, M j represents the size of each of the autoclaved building blocks, and P1 represents the reciprocal of the size of the entire autoclaved building block; D j represents the spatial volume of two adjacent autoclaved building blocks, Z1 represents the spatial sound insulation constant of two adjacent autoclaved building blocks, n represents the number of autoclaved building blocks, and r is a constant.

[0032] The constraints of the objective function of the operation layer are:

[0033] The volume change constraints of the autoclaved building blocks are: Among them, P load，t represents the volume of the autoclaved block at time t, α min Indicates the minimum volume shrinkage of autoclaved blocks, α max represents the maximum volume shrinkage of the autoclaved block, β min represents the minimum value of the volume expansion rate of the autoclaved building block, β maxrepresents the maximum value of the volume expansion rate of the autoclaved block, P L，cut，t represents the reduction value of the volume of the autoclaved building block at time t, P L，add，t represents the maximum value of the volume of the autoclaved building block at time t.

[0034] The constraints of the objective function of the planning layer are:

[0035] The autoclaved block capacity constraints: in, represents the maximum installation capacity of the autoclaved block installation position in the foundation wall at position i, The maximum installation capacity of the shape of the autoclaved block installation position in the foundation wall at position i;

[0036] Comprehensive construction safety constraints: C SCS ≥η, where η represents the comprehensive construction safety limit.

[0037] Furthermore, the algorithm for solving the double-layer model is an improved particle swarm algorithm. In the process of solving the problem using the improved particle swarm algorithm, the position and size of the autoclaved building block are used as the position and speed of the particles of the improved particle swarm algorithm.

[0038] The specific steps of solving the double-layer model include:

[0039] The first step is to initialize the position and size of the autoclaved building block;

[0040] The second step is to use the size of the autoclaved building block as a decision variable, solve the objective function of the operation layer under the constraint condition of the objective function of the operation layer, and obtain the difficulty percentage of the autoclaved building block production;

[0041] The third step is to return the difficulty percentage of the autoclaved block production to the planning layer, and use the position and size of the autoclaved block as decision variables. Under the constraint condition of the objective function of the planning layer, the objective function of the planning layer is solved to obtain the updated position and size of the autoclaved block.

[0042] The fourth step is to repeat the above steps of solving the objective function of the operation layer and the step of solving the objective function of the planning layer until the convergence condition is met, and output the optimal size of the autoclaved building block.

[0043] Furthermore, the specific steps of roughly dividing the BIM model of the basic wall by using the region growing algorithm include:

[0044] In the first step, the construction personnel mark multiple points on the BIM model of the foundation wall;

[0045] In the second step, the constructors calculated the curvature of all points and added the minimum curvature point to the seed point set;

[0046] In the third step, the construction personnel calculate the normal vectors of the current seed point and its adjacent points. If the adjacent point of the current seed point not only satisfies the angle between the normal vector of the point and the normal vector of the current seed point, but also its curvature value is less than the set threshold, then the adjacent point is added to the seed point sequence;

[0047] In the fourth step, the construction staff deletes the current seed point, regards the adjacent points as new seed points, and continues the growth of the region;

[0048] In the fifth step, the construction personnel will continue this process until the seed point sequence is empty.

[0049] Furthermore, the specific steps of extracting the boundary points of the region by using the maximum value of the angle between the vector formed by the point on the tangent plane and the adjacent point of the point on the tangent plane include:

[0050] The first step is to calculate the normal vector of the surface formed by a point and its neighboring points and calculate its tangent plane;

[0051] The second step is to project these points onto the tangent plane;

[0052] The third step is to calculate the angle between the point on the tangent plane and the vector formed by the adjacent points of the point on the tangent plane;

[0053] In the fourth step, if the maximum angle between adjacent vectors is greater than the set threshold, it is considered a boundary point; otherwise, it is considered an interior point.

[0054] Furthermore, the specific steps of fixing the plurality of autoclaved blocks inside the basic wall, fixing the sound insulation board on the surface of the basic wall, and completing the construction of the factory building sound insulation system include:

[0055] The first step is to pile up the autoclaved blocks of a determined size in the middle of the foundation wall construction position, and cast the autoclaved blocks with concrete;

[0056] The second step is to polish it flat after it is dried and formed;

[0057] The third step is to apply adhesive on the back of the sound insulation board and fix it according to the BIM model of the basic wall to complete the basic construction of the factory building sound insulation system;

[0058] The fourth step is to paint the surface of the sound insulation board with topcoat after the adhesive is completely dry, and then dry it to complete the factory sound insulation system.

[0059] The adhesive comprises: 25-30 parts of polyacrylamide, 15-22 parts of sodium silicate, 5-8 parts of filler, 6-8 parts of additive, 3-6 parts of Terotex-218 sound insulation agent, 2.5-4 parts of surfactant, 23-28 parts of acetone, and 40-45 parts of water;

[0060] The filler is a mixture of kaolin, silicon carbide and titanium dioxide, with a weight ratio of kaolin: silicon carbide: titanium dioxide of 1:2-4:4-6;

[0061] The surfactant is one or both of dioctyl sodium sulfosuccinate and sodium dodecylaminopropionate.

[0062] The specific steps of preparing the adhesive include:

[0063] The first step is to mix polyacrylamide, sodium silicate and 1 / 2 parts by weight of water, place in a mixer and stir at a temperature of 55-60° C. and a speed of 200 r / min. After stirring for 10 minutes, add a surfactant and an auxiliary agent, keep the temperature unchanged, adjust the speed to 300 r / min, and stir for 30 minutes to obtain a mixture 1;

[0064] The second step is to place the filler in a vacuum drying oven at 90°C and dry it for 8 hours, then add acetone, soundproofing agent and the remaining 1 / 2 weight portion of water into a reaction kettle and mix them, set the temperature at 100-105°C, the speed at 500r / min, and stir for 5 hours to obtain a mixture II;

[0065] Step 3: After the temperature in the reactor in Step 2 drops to 55-60°C, add Mixture 1, adjust the speed to 200r / min, and stir for 2h to obtain Mixture 3;

[0066] In the fourth step, the mixture was placed in a freezer, frozen at -5°C for 4 hours, heated in a water bath at 80°C for 3 hours, and stirred at 200 r / min for 10 minutes to obtain an adhesive.

[0067] Furthermore, the specific steps of constructing the BIM model of the basic wall include:

[0068] The first step is to classify the inside of the foundation wall level by level using a hierarchical classification method according to the design drawings and the actual construction conditions, and propose a coding rule based on information organization to encode each part of the foundation wall;

[0069] The second step is to standardize the parameters of each part of the basic wall and create a shared parameter file for use in different families and projects;

[0070] The third step is to construct the three-dimensional models of the various parts of the foundation wall according to the above classification results based on the Revit software platform according to the scheme on the construction design drawings, classify and summarize the three-dimensional models, and establish the foundation wall family library;

[0071] The fourth step is to call each component in the basic wall family library according to the actual situation of the basic wall, and modify the parameters of the basic wall components through external data file driving to generate corresponding instances;

[0072] The fifth step is to perform unified assembly to form a complete BIM model of the foundation wall.

[0073] Compared with the prior art, the beneficial effects of the method for constructing a factory sound insulation system provided by the present invention are: by setting the basic wall, support is provided for the autoclaved blocks and the sound insulation board; by setting the autoclaved blocks, the internal sound of the basic wall is isolated from the outside; by setting the sound insulation board, the noise that is not completely isolated by the autoclaved blocks is absorbed. The construction position of the foundation wall is measured by using a tape measure and a protractor to determine the foundation conditions, and the data is input into the Revit software to construct a foundation wall BIM model, so as to facilitate the grasp of the structure of the foundation wall and facilitate its segmentation; the foundation wall BIM model is roughly divided by using a regional growing algorithm, and the pitch, intensity and length of the sound in multiple time periods in each divided area are measured to determine the range of sound in each area around the foundation wall, and the thickness of the foundation wall is determined to make the construction more accurate; the BIM model is roughly divided again according to the sound range of different areas, and the normal vector of the point cloud data of the foundation wall after rough division is calculated and extracted, and then the point cloud data is projected on the tangent plane, and the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane is used. The maximum value of the angle is used to extract the boundary points of the area, and the coplanar points where the two areas intersect are obtained according to the distance threshold from the remaining points to the extracted boundary points. The coplanar points can make up for the missing two-plane intersection point data caused by the regional growing algorithm; the optimal plane segmentation is obtained by combining the roughly extracted plane points with the corresponding coplanar points, and the BIM model of the basic wall is divided to facilitate the construction of the basic wall; the size of the autoclaved building blocks is determined according to the maximum sound measured above, which is convenient for production and enhanced sound insulation effect; a plurality of the autoclaved building blocks are respectively fixed inside the basic wall, and the sound insulation board is fixed on the surface of the basic wall to complete the construction of the factory sound insulation system; it can solve the problem that the existing factory sound insulation system construction method is difficult to adjust the construction process according to the sound size, which is easy to cause reduced efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0075] Figure 1 It is a structural schematic diagram of a factory building sound insulation system;

[0076] Figure 2 It is a structural schematic diagram of an autoclaved building block;

[0077] Figure 3 It is a structural schematic diagram of the sound insulation board;

[0078] Figure 4 It is an operational flow chart of a method for constructing a factory sound insulation system;

[0079] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0080] 10. Foundation wall; 20. Autoclaved blocks; 30. Sound insulation board. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0082] like Figure 1-3 As shown, it is a structural schematic diagram of a factory building sound insulation system provided by the present invention, in which the basic wall 10, autoclaved blocks 20 and sound insulation boards 30 are included. The basic wall 10 is the wall of the factory building, which is used to provide a fixed foundation for the autoclaved blocks 20 and the sound insulation boards 30; there are multiple autoclaved blocks 20, which are fixed inside the basic wall 10, and the gaps are poured with concrete to isolate the internal sound of the basic wall 10 from the outside; the surface of the basic wall 10 is fixed with a sound insulation board 30, and the thickness of the sound insulation board 30 is 3-5cm, which is used to absorb the noise that is not completely isolated by the autoclaved blocks 20; the autoclaved blocks 20 and the sound insulation boards 30 cooperate with each other; and are used to jointly constitute the first and second lines of defense for sound insulation of the basic wall 10.

[0083] Among them, in the above technical scheme, the sound insulation board is divided into an inner board, an outer board and sound insulation rock wool, the outer board is fixed on the foundation wall 10, sound insulation rock wool is arranged between the inner board and the outer board, and an opening area and a flat plate area are arranged on the inner board. The opening area and the flat plate area are arranged at intervals, and a plurality of sound absorbing holes are arranged on the opening area; the flat plate area is bonded and connected to the sound insulation rock wool by an adhesive.

[0084] Furthermore, in the above technical solution, the size and quantity of the autoclaved building blocks are set according to the noise level.

[0085] Embodiment 1:

[0086] It includes a basic wall 10, autoclaved blocks 20 and sound insulation boards 30. The basic wall 10 is the wall of the factory building, which is used to provide a fixed foundation for the autoclaved blocks 20 and the sound insulation boards 30. There are multiple autoclaved blocks 20, which are fixed inside the basic wall 10, and the gaps are poured with concrete to isolate the internal sound of the basic wall 10 from the outside. The surface of the basic wall 10 is fixed with a sound insulation board 30, and the thickness of the sound insulation board 30 is 3 cm, which is used to absorb the noise that is not completely isolated by the autoclaved blocks 20. The autoclaved blocks 20 and the sound insulation boards 30 cooperate with each other to jointly constitute the first and second lines of defense for sound insulation of the basic wall 10. The sound insulation board is divided into an inner board, an outer board and sound insulation rock wool. The outer board is fixed on the foundation wall 10. Sound insulation rock wool is arranged between the inner board and the outer board. The inner board is provided with an opening area and a flat plate area. The opening area and the flat plate area are arranged at intervals. A plurality of sound absorbing holes are arranged on the opening area. The flat plate area is bonded and connected with the sound insulation rock wool by adhesive. The size and quantity of the autoclaved blocks are set according to the noise level.

[0087] Embodiment 2:

[0088] It includes a basic wall 10, autoclaved blocks 20 and sound insulation boards 30. The basic wall 10 is the wall of the factory building, which is used to provide a fixed foundation for the autoclaved blocks 20 and the sound insulation boards 30. There are multiple autoclaved blocks 20, which are fixed inside the basic wall 10 and are used to isolate the internal sound of the basic wall 10 from the outside through concrete pouring gaps. The surface of the basic wall 10 is fixed with a sound insulation board 30, and the thickness of the sound insulation board 30 is 5 cm, which is used to absorb the noise that is not completely isolated by the autoclaved blocks 20. The autoclaved blocks 20 and the sound insulation boards 30 cooperate with each other to jointly form the first and second lines of defense for sound insulation of the basic wall 10. The sound insulation board is divided into an inner board, an outer board and sound insulation rock wool. The outer board is fixed on the foundation wall 10. Sound insulation rock wool is arranged between the inner board and the outer board. The inner board is provided with an opening area and a flat plate area. The opening area and the flat plate area are arranged at intervals. A plurality of sound absorbing holes are arranged on the opening area. The flat plate area is bonded and connected with the sound insulation rock wool by adhesive. The size and quantity of the autoclaved blocks are set according to the noise level.

[0089] like Figure 4 As shown, it is an operation flow chart of a method for constructing a factory sound insulation system provided by the present invention. In the figure, the specific operation steps include:

[0090] S10: The construction personnel use a tape measure and a protractor to measure the construction position of the foundation wall 10, determine the foundation conditions, input the data into the Revit software, and construct a BIM model of the foundation wall 10;

[0091] S20: The construction personnel roughly divide the BIM model of the foundation wall 10 using a region growing algorithm, measure the pitch, intensity and duration of the sound in multiple time periods in each divided area, and determine the range of the sound in each area around the foundation wall 10;

[0092] S30: Construction personnel re-roughly divide the BIM model according to the sound range of different areas;

[0093] S40: The construction personnel calculate and extract the normal vector of the point cloud data of the roughly divided basic wall 10, and then project the point cloud data onto the tangent plane, and use the maximum value of the angle between the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane to extract the boundary point of the area;

[0094] S50: The construction personnel obtain the coplanar points where the two regions intersect according to the distance threshold from the remaining points to the extracted boundary points. The coplanar points can make up for the missing intersection point data of the two planes caused by the region growing algorithm; the roughly extracted plane points are combined with the corresponding coplanar points to obtain the optimal plane segmentation, and the BIM model of the foundation wall 10 is divided;

[0095] S60: The construction workers cut the basic materials for constructing the basic wall 10 according to the divided areas;

[0096] S70: The construction personnel determine the size of the autoclaved block 20 according to the maximum sound measured above;

[0097] S80: fix a plurality of autoclaved blocks 20 inside the basic wall 10 respectively, and fix the sound insulation board 30 on the surface of the basic wall 10 to complete the construction of the factory building sound insulation system.

[0098] When in use, use a tape measure and a protractor to measure the construction position of the foundation wall, determine the basic conditions, input the data into the Revit software, and build a BIM model of the foundation wall; use the regional growing algorithm to roughly divide the BIM model of the foundation wall, measure the pitch, intensity, and length of the sound in multiple time periods in each divided area, and determine the range of sound in each area around the foundation wall; re-roughly divide the BIM model according to the sound range of different areas; calculate and extract the normal vector of the point cloud data of the roughly divided foundation wall, and then project the point cloud data onto the tangent plane, using the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane The boundary points of the area are extracted by taking the maximum value of the angle between the remaining points and the extracted boundary points; the coplanar points where the two areas intersect are obtained according to the distance threshold from the remaining points to the extracted boundary points, and the coplanar points can make up for the missing data of the intersection points of the two planes caused by the regional growing algorithm; the coarsely extracted plane points are combined with the corresponding coplanar points to obtain the optimal plane segmentation; the construction personnel cut the basic materials for constructing the basic wall 10 according to the divided areas; the construction personnel determine the size of the autoclaved blocks 20 according to the maximum sound measured above; a plurality of autoclaved blocks 20 are respectively fixed inside the basic wall 10, and the sound insulation board 30 is fixed on the surface of the basic wall 10 to complete the construction of the factory sound insulation system.

[0099] Furthermore, in the above technical solution, the specific steps of determining the size of the autoclaved building block 20 according to the maximum sound measured above include:

[0100] The first step is to establish a double-layer model for the size planning of the autoclaved building block 20, which is composed of a lower operation layer objective function of the manufacturing difficulty determined according to the size of the autoclaved building block 20 and an objective function of the sound insulation effect determined according to the size of the autoclaved building block 20;

[0101] The second step is to determine the constraints of the objective functions of the operation layer and the planning layer respectively;

[0102] The third step is to solve the double-layer model under the constraints of the operation layer and the planning layer respectively, and output the optimal difficulty of making the autoclaved building block 20 and the sound insulation effect, so that the size of the autoclaved building block 20 is planned according to the optimal difficulty of making the autoclaved building block 20 and the sound insulation effect.

[0103] Among them, the objective function of the operation layer is:

[0104] min F1=C+T+S+D+Y+M;

[0105] F1 represents the difficulty percentage of the autoclaved block 20 production, min F1 represents the minimum difficulty percentage of the autoclaved block 20 production, C represents the raw material cost rate, T represents the ratio of the production time to the production time of the entire autoclaved block 20 production, S represents the production efficiency, D represents the ratio of the size of the autoclaved block 20 to the size of the entire autoclaved block 20, Y represents the transportation efficiency, and M represents the machine wear rate;

[0106] The objective function of the planning layer is:

[0107]

[0108] F2 represents the sound insulation effect of the autoclaved building block 20, min F2 represents the minimum sound insulation effect of the autoclaved building block 20, M j represents the size of each of the autoclaved building blocks 20, and P1 represents the reciprocal of the size of the entire autoclaved building block 20; D j represents the spatial volume size of two adjacent autoclaved building blocks 20, Z1 represents the spatial sound insulation constant of two adjacent autoclaved building blocks 20, n represents the number of the autoclaved building blocks 20, and r is a constant.

[0109] The constraints of the objective function of the operation layer are:

[0110] The volume change constraints of the autoclaved building blocks: Among them, P load，t represents the volume of the autoclaved building block 20 at time t, α min Indicates the minimum volume shrinkage of autoclaved block 20, α max represents the maximum volume shrinkage of the autoclaved building block 20, β min represents the minimum value of the volume expansion rate of the autoclaved building block, β max represents the maximum value of the volume expansion rate of the autoclaved building block 20, P L，cut，t represents the volume reduction value of the autoclaved building block 20 at time t, P L，add，t It represents the maximum value of the volume of the autoclaved building block 20 at time t.

[0111] The constraints of the objective function of the planning layer are:

[0112] The capacity constraints of the autoclaved blocks 20: in, represents the maximum installation capacity of the autoclaved block 20 in the basic wall 10 at position i, The maximum installation capacity of the shape of the installation position of the autoclaved block 20 in the foundation wall 10 at position i;

[0113] Comprehensive construction safety constraints: C SCS≥η, where η represents the comprehensive construction safety limit.

[0114] Furthermore, in the above technical solution, the algorithm for solving the double-layer model is an improved particle swarm algorithm. In the process of solving the problem using the improved particle swarm algorithm, the position and size of the autoclaved building block 20 are used as the position and speed of the particles in the improved particle swarm algorithm.

[0115] Among them, the specific steps of solving the two-layer model include:

[0116] The first step is to initialize the position and size of the autoclaved building block 20;

[0117] The second step is to use the size of the autoclaved building block 20 as the decision variable, solve the objective function of the operation layer under the constraint conditions of the objective function of the operation layer, and obtain the difficulty percentage of the production of the autoclaved building block 20;

[0118] The third step is to return the difficulty percentage of the autoclaved building block 20 production to the planning layer, and take the position and size of the autoclaved building block 20 as decision variables. Under the constraint condition of the objective function of the planning layer, the objective function of the planning layer is solved to obtain the updated position and size of the autoclaved building block 20;

[0119] In the fourth step, the steps of solving the objective function of the operation layer and the steps of solving the objective function of the planning layer are repeated until the convergence condition is met, and the optimal size of the autoclaved building block 20 is output.

[0120] Furthermore, in the above technical solution, the specific steps of roughly dividing the BIM model of the basic wall 10 by using the region growing algorithm include:

[0121] In the first step, the construction personnel mark multiple points on the BIM model of the foundation wall 10;

[0122] In the second step, the constructors calculated the curvature of all points and added the point with the minimum curvature to the seed point set;

[0123] In the third step, the construction personnel calculate the normal vectors of the current seed point and its adjacent points. If the adjacent point of the current seed point not only satisfies the angle between the normal vector of the point and the normal vector of the current seed point, but also its curvature value is less than the set threshold, then the adjacent point is added to the seed point sequence;

[0124] In the fourth step, the construction staff deletes the current seed point, regards the adjacent points as new seed points, and continues the growth of the region;

[0125] In the fifth step, the construction personnel will continue this process until the seed point sequence is empty.

[0126] Furthermore, in the above technical solution, the specific steps of extracting the boundary points of the region by using the maximum value of the angle between the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane include:

[0127] The first step is to calculate the normal vector of the surface formed by a point and its neighboring points and calculate its tangent plane;

[0128] The second step is to project these points onto the tangent plane;

[0129] The third step is to calculate the angle between the point on the tangent plane and the vector formed by the adjacent points of the point on the tangent plane;

[0130] In the fourth step, if the maximum angle between adjacent vectors is greater than the set threshold, it is considered a boundary point; otherwise, it is considered an interior point.

[0131] Furthermore, in the above technical solution, a plurality of autoclaved blocks 20 are respectively fixed inside the basic wall 10, and a sound insulation board 30 is fixed on the surface of the basic wall 10. The specific steps of completing the construction of the factory building sound insulation system include:

[0132] The first step is to pile up the autoclaved blocks 20 of a determined size in the middle part of the construction position of the foundation wall 10, and cast the autoclaved blocks 20 with concrete;

[0133] The second step is to polish it flat after it is dried and formed;

[0134] The third step is to apply adhesive on the back of the sound insulation board 30 and fix it according to the BIM model of the basic wall 10 to complete the basic construction of the factory building sound insulation system;

[0135] In the fourth step, after the adhesive is completely dry, a topcoat is applied on the surface of the sound insulation board 30 and dried, thereby completing the factory sound insulation system.

[0136] The ingredients of the adhesive include: 25-30 parts of polyacrylamide, 15-22 parts of sodium silicate, 5-8 parts of filler, 6-8 parts of additive, 3-6 parts of Terotex-218 sound insulation agent, 2.5-4 parts of surfactant, 23-28 parts of acetone, and 40-45 parts of water;

[0137] The filler is a mixture of kaolin, silicon carbide and titanium dioxide, with a weight ratio of kaolin: silicon carbide: titanium dioxide of 1:2-4:4-6;

[0138] The surfactant is one or both of dioctyl sodium sulfosuccinate and sodium dodecylaminopropionate.

[0139] The specific steps for preparing the adhesive include:

[0140] The first step is to mix polyacrylamide, sodium silicate and 1 / 2 parts by weight of water, place in a mixer and stir at a temperature of 55-60° C. and a speed of 200 r / min. After stirring for 10 minutes, add a surfactant and an auxiliary agent, keep the temperature unchanged, adjust the speed to 300 r / min, and stir for 30 minutes to obtain a mixture 1;

[0141] The second step is to place the filler in a vacuum drying oven at 90°C and dry it for 8 hours, then add acetone, soundproofing agent and the remaining 1 / 2 weight portion of water into a reaction kettle and mix them, set the temperature at 100-105°C, the speed at 500r / min, and stir for 5 hours to obtain a mixture II;

[0142] Step 3: After the temperature in the reactor in Step 2 drops to 55-60°C, add Mixture 1, adjust the speed to 200r / min, and stir for 2h to obtain Mixture 3;

[0143] In the fourth step, the mixture was placed in a freezer, frozen at -5°C for 4 hours, heated in a water bath at 80°C for 3 hours, and stirred at 200 r / min for 10 minutes to obtain an adhesive.

[0144] Furthermore, in the above technical solution, the specific steps of constructing the BIM model of the basic wall 10 include:

[0145] The first step is to classify the inside of the basic wall 10 level by level according to the design drawings and the actual construction conditions, and propose a coding rule based on information organization to encode each part of the basic wall 10;

[0146] The second step is to standardize the parameters of each part of the basic wall 10 and create a shared parameter file for use in different families and projects;

[0147] The third step is to construct the three-dimensional models of the various parts of the foundation wall 10 according to the above classification results based on the Revit software platform according to the scheme on the construction design drawings, classify and summarize the three-dimensional models, and establish a family library of the foundation wall 10;

[0148] The fourth step is to call each component in the family library of the basic wall 10 according to the actual situation of the basic wall 10, and modify the parameters of the basic wall 10 components through the external data file drive to generate the corresponding instance;

[0149] The fifth step is to perform unified assembly to form a complete BIM model of the basic wall 10.

[0150] Specifically, the principle of the present invention is: use a tape measure and a protractor to measure the construction position of the foundation wall to determine the basic conditions, input the data into the Revit software, and construct a foundation wall BIM model; use a regional growing algorithm to roughly divide the foundation wall BIM model, measure the pitch, sound intensity and sound length of multiple time periods in each divided area, and determine the range of sound in each area around the foundation wall; re-roughly divide the BIM model according to the sound range of different areas; calculate and extract the normal vector of the point cloud data of the foundation wall after rough division, and then project the point cloud data onto the tangent plane, and use the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane The boundary points of the area are extracted by taking the maximum value of the angle between the remaining points and the extracted boundary points; the coplanar points where the two areas intersect are obtained according to the distance threshold from the remaining points to the extracted boundary points, and the coplanar points can make up for the missing two-plane intersection point data caused by the regional growing algorithm; the coarsely extracted plane points are combined with the corresponding coplanar points to obtain the optimal plane segmentation; the construction personnel cut the basic materials for constructing the basic wall 10 according to the divided areas; the construction personnel determine the size of the autoclaved building blocks 20 according to the maximum sound measured above; a plurality of the autoclaved building blocks 20 are respectively fixed inside the basic wall 10, and the sound insulation board 30 is fixed on the surface of the basic wall 10 to complete the construction of the factory building sound insulation system.

Claims

1. A method for constructing a factory building sound insulation system, characterized in that: The factory building sound insulation system comprises a basic wall (10), autoclaved blocks (20) and a sound insulation board (30), wherein the basic wall (10) is a wall of the factory building and is used to provide a fixing foundation for the autoclaved blocks (20) and the sound insulation board (30); the autoclaved blocks (20) are multiple and are respectively fixed inside the basic wall (10), and are used to isolate the internal sound of the basic wall (10) from the outside through concrete pouring gaps; the sound insulation board (30) is fixed on the surface of the basic wall (10), and the thickness of the sound insulation board (30) is 3-5 cm, and is used to absorb the noise that is not completely isolated by the autoclaved blocks (20); The autoclaved building blocks (20) and the sound insulation board (30) cooperate with each other and are used to form the first and second sound insulation lines of the basic wall (10); the sound insulation board is divided into an inner plate, an outer plate and sound insulation rock wool, the outer plate is fixed to the basic wall (10), the sound insulation rock wool is arranged between the inner plate and the outer plate, the inner plate is provided with an opening area and a flat plate area, the opening area and the flat plate area are arranged at intervals, and a plurality of sound absorbing holes are arranged on the opening area; the flat plate area is bonded and connected to the sound insulation rock wool by an adhesive; the size and quantity of the autoclaved building blocks are respectively set according to the noise level; The specific steps include: S10: The construction personnel use a tape measure and a protractor to measure the construction position of the foundation wall (10), determine the foundation conditions, input the data into the Revit software, and construct a BIM model of the foundation wall (10); S20: The construction personnel roughly divide the BIM model of the basic wall (10) using a region growing algorithm, measure the pitch, intensity and duration of the sound in multiple time periods in each divided area, and determine the range of the sound in each area around the basic wall (10); S30: The construction personnel roughly re-divide the BIM model according to the sound ranges of different areas; S40: The construction personnel calculate and extract the normal vector of the point cloud data of the basic wall (10) after the rough division, and then project the point cloud data onto a tangent plane, and use the maximum value of the angle between the vector formed between the point on the tangent plane and the adjacent point of the point on the tangent plane to extract the boundary point of the area; S50: The construction personnel obtain the coplanar points where the two regions intersect according to the distance threshold from the remaining points to the extracted boundary points, and the coplanar points can make up for the missing intersection point data of the two planes caused by the region growing algorithm; the roughly extracted plane points are combined with the corresponding coplanar points to obtain the optimal plane segmentation, and the BIM model of the foundation wall (10) is divided; S60: Construction workers cut the basic materials for constructing the basic wall (10) according to the divided areas; S70: The construction personnel determine the size of the autoclaved building block (20) according to the maximum sound measured above; S80: fixing the plurality of autoclaved building blocks (20) inside the basic wall (10) respectively, and fixing the sound insulation board (30) on the surface of the basic wall (10), thereby completing the construction of the factory building sound insulation system; The specific steps of determining the size of the autoclaved building block (20) according to the maximum sound measured above include: The first step is to establish a double-layer model for the size planning of the autoclaved building block (20) consisting of a lower operating layer objective function of the manufacturing difficulty determined according to the size of the autoclaved building block (20) and an objective function of the sound insulation effect determined according to the size of the autoclaved building block (20); The second step is to determine the constraint conditions of the objective functions of the operation layer and the planning layer respectively; The third step is to solve the double-layer model under the constraints of the operation layer and the planning layer respectively, and output the optimal difficulty of making the autoclaved building block (20) and the sound insulation effect, so that the size of the autoclaved building block (20) is planned according to the optimal difficulty of making the autoclaved building block (20) and the sound insulation effect.

2. A method for constructing a factory building sound insulation system according to claim 1, characterized in that: The algorithm for solving the double-layer model is an improved particle swarm algorithm. During the process of solving the problem using the improved particle swarm algorithm, the position and size of the autoclaved building block (20) are used as the position and speed of the particles of the improved particle swarm algorithm. The specific steps of solving the double-layer model include: The first step is to initialize the position and size of the autoclaved building block (20); The second step is to use the size of the autoclaved building block (20) as a decision variable, solve the objective function of the operation layer under the constraint condition of the objective function of the operation layer, and obtain the difficulty percentage of the production of the autoclaved building block (20); The third step is to return the difficulty percentage of the production of the autoclaved building block (20) to the planning layer, and use the position and size of the autoclaved building block (20) as decision variables. Under the constraint conditions of the objective function of the planning layer, the objective function of the planning layer is solved to obtain an updated position and size of the autoclaved building block (20); The fourth step is to repeat the above steps of solving the objective function of the operation layer and the step of solving the objective function of the planning layer until the convergence condition is met, and output the optimal size of the autoclaved building block (20).

3. A method for constructing a factory building sound insulation system according to claim 2, characterized in that: The specific steps of roughly dividing the BIM model of the basic wall (10) by using the region growing algorithm include: In the first step, construction workers mark multiple points on the BIM model of the foundation wall (10); In the second step, the constructors calculated the curvature of all points and added the minimum curvature point to the seed point set; In the third step, the construction personnel calculate the normal vectors of the current seed point and its adjacent points. If the adjacent point of the current seed point not only satisfies the angle between the normal vector of the point and the normal vector of the current seed point, but also its curvature value is less than the set threshold, then the adjacent point is added to the seed point sequence; In the fourth step, the construction staff deletes the current seed point, regards the adjacent points as new seed points, and continues the growth of the region; In the fifth step, the construction personnel will continue this process until the seed point sequence is empty.

4. A method for constructing a factory building sound insulation system according to claim 3, characterized in that: The specific steps of extracting the boundary points of the region by using the maximum value of the angle between the vector formed by the point on the tangent plane and the adjacent point of the point on the tangent plane include: The first step is to calculate the normal vector of the surface formed by a point and its neighboring points and calculate its tangent plane; The second step is to project these points onto the tangent plane; The third step is to calculate the angle between the point on the tangent plane and the vector formed by the adjacent points of the point on the tangent plane; In the fourth step, if the maximum angle between adjacent vectors is greater than the set threshold, it is considered a boundary point; otherwise, it is considered an interior point.

5. A method for constructing a factory building sound insulation system according to claim 4, characterized in that: The specific steps of fixing the plurality of autoclaved building blocks (20) respectively inside the basic wall (10) and fixing the sound insulation board (30) on the surface of the basic wall (10) to complete the construction of the factory building sound insulation system include: The first step is to pile up the autoclaved building blocks (20) of a determined size in the middle part of the construction position of the foundation wall (10), and to cast the autoclaved building blocks (20) with concrete; The second step is to polish it flat after it is dried and formed; The third step is to apply adhesive on the back of the sound insulation board (30) and fix it according to the BIM model of the basic wall (10), thereby completing the basic construction of the factory building sound insulation system; In the fourth step, after the adhesive is completely dried, a topcoat is applied to the surface of the sound insulation board (30) and dried, thereby completing the construction of the factory sound insulation system.

6. A method for constructing a factory building sound insulation system according to claim 5, characterized in that: The specific steps of constructing the BIM model of the basic wall (10) include: The first step is to classify the inside of the basic wall (10) step by step according to the design drawings and the actual construction conditions by using a hierarchical classification method, and propose a coding rule based on information organization to encode each part of the basic wall (10); The second step is to standardize the parameters of each part of the basic wall (10) and create a shared parameter file for use in different families and projects; The third step is to construct the three-dimensional models of the various parts of the basic wall (10) according to the above classification results based on the Revit software platform according to the scheme on the construction design drawings, classify and summarize the three-dimensional models, and establish the family library of the basic wall (10); The fourth step is to call each component in the family library of the basic wall (10) according to the actual situation of the basic wall (10), and to modify the parameters of the basic wall (10) components through external data file drive to generate corresponding instances; The fifth step is to perform unified assembly to form a complete BIM model of the basic wall (10).

Images