A method for building dismantling based on digital building models

Abstract

The application discloses a building disassembling method based on a digital building model, which comprises the following steps: a digital building model of a building is established according to building component units; the building component units are divided into disassembling modules; a disassembling sequence route of each disassembling module is planned in the digital building model to perform virtual disassembling, the disassembling time and the disassembling cost of each disassembling sequence route are calculated, and the optimal disassembling sequence route is selected; the building is divided into the disassembling modules according to the digital building model, and the building is actually disassembled according to the divided disassembling modules based on the optimal disassembling sequence route; and actual disassembling data is updated to the digital building model to dynamically supervise the actual disassembling process of the building. The application can reduce the disassembling time cost and the disassembling cost of the building, reduce the working time of disassembling machines, reduce carbon emission, protect the environment, and integrally retain each building component, so that the building components after disassembling can be reused.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for dismantling buildings based on digital building models. Background Technology

[0002] Urban renewal and renovation processes include both the renovation of existing buildings and the demolition and reconstruction of existing buildings. Demolition is often destructive, with random routes, resulting in high costs, significant losses, and the inability to preserve the integrity of building components. This makes it impossible to reuse the demolished components, especially in historical and cultural buildings. The destructive removal of components prevents their reuse during reconstruction, hindering the restoration of the historical appearance of the reconstructed building. Summary of the Invention

[0003] The purpose of this invention is to provide a building dismantling method based on digital building models to solve the problems of high cost, large losses, and non-reusability of dismantled building components caused by destructive dismantling.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this invention is: a building dismantling method based on a digital building model, comprising:

[0005] Step S1: Divide each building component of the building into a unit and build a digital building model of the building according to the building component units;

[0006] Step S2: Divide the digital building model into disassembly modules based on building component units;

[0007] Step S3: Plan the dismantling sequence route of each dismantling module in the digital building model, perform virtual dismantling of each dismantling module, calculate the dismantling time and dismantling cost of each dismantling sequence route, and select the optimal dismantling sequence route.

[0008] Step S4: Divide the building into dismantling modules according to the digital building model, and dismantle the building in the construction site according to the optimal dismantling sequence route in the digital building model.

[0009] Step S5 involves updating the actual dismantling data into the digital building model to dynamically monitor the actual dismantling process of the building.

[0010] Furthermore, the building dismantling method based on a digital building model provided by this invention calculates the total dismantling time of the digital building model according to formula (1):

[0011] (1);

[0012] in,T The total dismantling time of the building. k To evaluate the complexity of the decomposition sequence route, n The disassembly modules are numbered sequentially. P n The structural complexity evaluation coefficient for each disassembly module. T n The disassembly time for each disassembly module.

[0013] Furthermore, the building dismantling method based on a digital building model provided by this invention calculates the total dismantling cost of the digital building model according to formula (2):

[0014] (2);

[0015] in, F The total cost of dismantling the building. k To evaluate the complexity of the decomposition sequence route, n The disassembly modules are numbered sequentially. P n The structural complexity evaluation coefficient for each disassembly module. F n The cost of disassembling each module.

[0016] Furthermore, the building dismantling method based on digital building models provided by the present invention divides multiple adjacent building component units into a dismantling module.

[0017] Furthermore, the building dismantling method based on digital building models provided by the present invention decomposes a dismantling module into multiple sub-dismantling modules.

[0018] Furthermore, in the building dismantling method based on a digital building model provided by this invention, if two adjacent dismantling modules share common connecting parts, these connecting parts are removed in the subsequent dismantling module. / / Common connecting parts include, but are not limited to, building components, metal parts, etc.

[0019] Furthermore, the building dismantling method based on a digital building model provided by the present invention includes one or more of the following building components: walls, beams, slabs, columns, doors, and windows.

[0020] Furthermore, the present invention provides a building dismantling method based on a digital building model, wherein the digital building model includes structural information, spatial information, dismantling information and time information of the building. The structural information is the structural form of the building components, the spatial information is the location distribution of the building components, the dismantling information is the dismantling machinery of the building components, the corresponding dismantling costs and time consumption, and the time information is the dynamic evolution of the building over time according to the dismantling sequence.

[0021] Furthermore, the building dismantling method based on digital building models provided by the present invention includes actual dismantling time, actual dismantling cost, actual dismantling machinery, and structural and spatial information of the building components after dismantling.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The building dismantling method based on digital building models provided by this invention establishes a digital building model, divides the building into dismantling modules according to building component units in the digital building model, and plans the dismantling sequence routes of each dismantling module for virtual dismantling. The dismantling time and cost are calculated, and the optimal dismantling sequence route is selected to actually dismantle the building according to the dismantling modules divided in the digital building model. This reduces the time and cost of building dismantling, reduces the working time of dismantling machinery, reduces carbon emissions, and protects the environment.

[0024] The building dismantling method based on digital building models provided by this invention dismantles buildings by using building component units as dismantling modules. It can preserve each building component intact, so that the dismantled building components can be reused. This avoids the problems of large losses, serious waste and a lot of construction waste caused by destructive dismantling, and is of great significance for the demolition and reconstruction of historical and cultural buildings.

[0025] The building dismantling method based on digital building models provided by this invention can dynamically monitor the actual dismantling process by updating the actual dismantling data into the digital building model. On the one hand, it can monitor the safety and progress of the dismantling process, and on the other hand, it can optimize the dismantling sequence and route to further reduce costs. Attached Figure Description

[0026] Figure 1 This is a flowchart of a building dismantling method based on a digital building model;

[0027] Figure 2 This is a preliminary diagram showing the breakdown modules and breakdown sequence of a specific area in a digital building model.

[0028] Figure 3 Yes Figure 2 Partition diagram during the decomposition module optimization process;

[0029] Figure 4 Yes Figure 3 The final partition diagram after optimizing the disassembly modules and disassembly sequence;

[0030] Figures 5 to 6 Yes Figure 4 A schematic diagram of the disassembly module planning disassembly sequence route. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] Please refer to Figures 1 to 6 This invention provides a method for dismantling buildings based on digital building models, comprising:

[0033] Step S1: Divide each building component into a unit and create a digital building model of the building according to these unit units. The digital building model includes, but is not limited to, Building Information Modeling (BIM). Building components include walls, beams, slabs, columns, doors, windows, lighting fixtures, hardware, signage, and other components. The digital building model can be created based on architectural design drawings, which include, but are not limited to, structural drawings, architectural drawings, and construction drawings of the building and its components. The digital building model includes structural information, spatial information, demolition information, and temporal information. The structural information refers to the structural form of the building components; the spatial information refers to the location distribution of the building components; the demolition information includes the demolition machinery, corresponding demolition costs, and time consumption; and the temporal information is the dynamic evolution of the building over time according to the demolition sequence.

[0034] Step S2: Divide the digital building model into disassembly modules based on building component units.

[0035] Step S3: Plan the dismantling sequence routes for each dismantling module in the digital building model. Perform virtual dismantling of each module, calculate the dismantling time and cost for each dismantling sequence route, and select the optimal dismantling sequence route. The optimal dismantling sequence route is the one with the least dismantling time and the lowest dismantling cost. To reduce dismantling time and costs and optimize the dismantling sequence routes, multiple adjacent building component units can be grouped into a single dismantling module; to facilitate dismantling, a single dismantling module can be decomposed into multiple sub-dismantling modules. Figure 2 The digital building model is divided into 16 disassembly modules based on building component units. Each square represents a disassembly module, and the number in each square indicates the disassembly sequence. Figure 3 right Figure 2 The disassembly module has been optimized and adjusted to... Figure 2 The disassembly modules 1, 2, 5, and 6 are combined into one disassembly module, which will... Figure 2 The disassembly module 16 is decomposed into 4 sub-disassembly modules. Figure 4 Yes Figure 3 The disassembly modules were renumbered sequentially. Figure 5 and Figure 6 Each dismantling sequence is illustrated. Based on the types and quantities of components contained in the dismantling module number, and the selected dismantling machinery, the cost and time required to dismantle that module can be estimated. For example, let the types and quantities of building components in dismantling module 1 be J1, the cost required for dismantling be F1, and the time be T1. The types and quantities of building components in the dismantling module do not include shared connecting parts adjacent to the next dismantling module number. That is, if two adjacent dismantling modules share connecting parts, they are dismantled in the subsequent dismantling module. Shared connecting parts include, but are not limited to, building components and metal parts. For example: Figure 4 Disassembly module 1 is the first sequential disassembly area and is adjacent to disassembly modules 2, 4, 6, and 7. Therefore, the common connecting parts with the adjacent disassembly modules are designated as GM1-2, GM1-4, GM1-6, and GM1-7. These common connecting parts are not included in the type and quantity of disassembly module 1. For example... Figure 4 In this model, dismantling module 2 is the second dismantling area in the order of dismantling, and it is adjacent to dismantling modules 1, 3, and 4. Therefore, GM1-2 is included in dismantling module 2. However, the common connecting parts GM2-3 and GM2-4, which are adjacent to dismantling modules 3 and 4, are not included in dismantling module 2. This process continues, thus clarifying the types and quantities of components in each dismantling area, as well as the time T and cost F required to dismantle the corresponding area. Due to the different division of dismantling modules and the different dismantling sequence routes, the structural complexity of each dismantling module and the tortuousness of the dismantling sequence route also vary. Generally speaking, the larger the area of ​​each dismantling module, the higher the structural complexity, and the higher the cost of dismantling machinery and labor. Therefore, this model introduces a structural complexity evaluation coefficient for dismantling modules. Pn, in n The modules are numbered to adjust the dismantling time and cost per unit area. Similarly, different dismantling sequence routes will lead to different levels of complexity in the construction route, as well as different routes for machinery movement and material transportation. Generally speaking, the longer the dismantling construction route, the longer the machinery movement and material transportation routes will be, which in turn will lead to higher overall dismantling days and costs. Therefore, a dismantling sequence route complexity evaluation coefficient is introduced. k This is to adjust the dismantling time and cost for the overall area. Figures 5 to 6 The dismantling sequence route is 1→2→3→4→5→6→7→8→9→10→11→12→13→14→15→16. In this model, the dismantling construction route is considered as a sequential connection of the geometric centers of each dismantling module according to their sequential numbering. This is the dismantling sequence route complexity evaluation coefficient. k It is positively correlated with the length of the dismantling and construction route, where each dismantling sequence has a different route. kValue. Therefore, according to formulas (1) and (2), the total dismantling time and total dismantling cost of the digital building model can be calculated respectively:

[0036] (1);

[0037] in, T The total dismantling time of the building. k To evaluate the complexity of the decomposition sequence route, n The disassembly modules are numbered sequentially. P n The structural complexity evaluation coefficient for each disassembly module. T n Let represent the disassembly time for each disassembly module. Expanding Formula 1, we get: T=k(P 1 T 1 +P 2 T 2 +P 3 T 3 +…+P n T n ) .

[0038] (2);

[0039] in, F The total cost of dismantling the building. k To evaluate the complexity of the decomposition sequence route, n The disassembly modules are numbered sequentially. P n The structural complexity evaluation coefficient for each disassembly module. F n The disassembly cost for each disassembly module. Expanding formula (2) yields: F = k(P) 1 F 1 +P 2 F 2 +P 3 F 3 +…+P n F n )By calculating the total dismantling time and total dismantling cost of all dismantling sequence routes, the optimal dismantling sequence route can be selected.

[0040] Step S4 involves dividing the building into dismantling modules according to the digital building model. At the construction site, the building is then dismantled according to the optimal dismantling sequence in the digital building model, following the divided modules. This dismantling can be performed by constructing a dismantling platform.

[0041] Step S5 involves updating the actual dismantling data into the digital building model to dynamically monitor the actual dismantling process. This actual dismantling data includes the actual dismantling time, costs, machinery used, and structural and spatial information of the building components after dismantling. The cloud platform can be used to compare and analyze the collected construction data with the virtual data generated by the building's virtual model, determining whether the dismantling data matches the virtual data generated by the model. This allows for dynamic monitoring of the construction status and control over the entire construction process, ensuring reliability and reducing costs. Furthermore, the collected construction data can provide feedback on the virtual model's performance, facilitating further optimization.

[0042] The building dismantling method based on digital building models provided by this invention establishes a digital building model, divides the building into dismantling modules according to building component units in the digital building model, and plans the dismantling sequence routes of each dismantling module for virtual dismantling. The dismantling time and cost are calculated, and the optimal dismantling sequence route is selected to actually dismantle the building according to the dismantling modules divided in the digital building model. This reduces the time and cost of building dismantling, reduces the working time of dismantling machinery, reduces carbon emissions, and protects the environment.

[0043] The building dismantling method based on digital building models provided by this invention dismantles buildings by using building component units as dismantling modules. It can preserve each building component intact, so that the dismantled building components can be reused. This avoids the problems of large losses, serious waste and a lot of construction waste caused by destructive dismantling, and is of great significance for the demolition and reconstruction of historical and cultural buildings.

[0044] The building dismantling method based on digital building models provided by this invention can dynamically monitor the actual dismantling process by updating the actual dismantling data into the digital building model. On the one hand, it can monitor the safety and progress of the dismantling process, and on the other hand, it can optimize the dismantling sequence and route to further reduce costs.

[0045] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A building disassembly method based on a digital building model, characterized by, The method comprises the following steps: S1. regarding each building component of a building as a unit, and establishing a digital building model of the building according to the building component unit; S2. dividing the digital building model into disassembly modules according to the building component unit; S3. planning disassembly sequence routes for each disassembly module in the digital building model, virtually disassembling each disassembly module, calculating disassembly time and disassembly cost of each disassembly sequence route, and selecting an optimal disassembly sequence route, wherein the optimal disassembly sequence route is the disassembly sequence route with the least disassembly time and the lowest disassembly cost; and calculating the total disassembly time of the digital building model according to formula (1): （1）； wherein, T is the total disassembly time of the building, k is the disassembly sequence route complexity evaluation coefficient, n is the sequential number of the disassembly module, P n is the structure complexity evaluation coefficient of each disassembly module, T n is the disassembly time of each disassembly module; a structural complexity evaluation coefficient of the disassembly module is introduced to correct the disassembly time and cost per unit area; calculating the total disassembly cost of the digital building model according to formula (2): （2）； wherein, F is the total disassembly cost of the building, k is the disassembly sequence route complexity evaluation coefficient, n is the sequential number of the disassembly module, P n is the structure complexity evaluation coefficient of each disassembly module, F n is the disassembly cost of each disassembly module; a disassembly sequence route complexity evaluation coefficient k is introduced to correct the disassembly time and cost of the overall area; S4. dividing the building according to the disassembly modules of the digital building model, and actually disassembling the building according to the optimal disassembly sequence route in the digital building model and the divided disassembly modules in the construction site where the building is located; S5. updating the actual disassembly data to the digital building model, and dynamically monitoring the actual disassembly process of the building.

2. The digital building model based building disassembly method of claim 1, wherein, A plurality of adjacent building component units are combined to form a disassembly module.

3. The digital building model based building disassembly method of claim 1, wherein, A disassembly module is divided into a plurality of sub-disassembly modules.

4. The digital building model based building disassembly method of claim 1, wherein, Adjacent two disassembly modules have a common connecting piece, which is removed in the latter disassembly module.

5. The digital building model based building disassembly method of claim 1, wherein, The building component comprises one or more of a wall, a beam, a plate, a column, a door and a window.

6. The digital building model based building disassembly method of claim 1, wherein, The digital building model comprises structural information, spatial information, disassembly information and time information of the building, the structural information is the structural form of the building component of the building, the spatial information is the position distribution of the building component, the disassembly information is the disassembly machinery of the building component, the corresponding disassembly cost and time consumption, and the time information is the dynamic evolution of the building according to the evolution process of the disassembly sequence route with time.

7. The digital building model based building disassembly method of claim 1, wherein, The actual disassembly data comprises actual disassembly time, actual disassembly cost, actual disassembly machinery, structural information and spatial information of the building component after disassembly.

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