A method for emergency hotel demolition

Abstract

A method for dismantling an emergency hotel includes the following steps: obtaining parameter data of the emergency hotel, the parameter data characterizing the physical structure of the emergency hotel; constructing a hotel BIM model of the emergency hotel according to the parameter data; determining the to-be-dismantled area and the reserved area of ​​the temporary construction layer in the emergency hotel; wherein the temporary construction layer is a housing area added by adding a mezzanine in the building of the emergency hotel; determining the final dismantling order of multiple to-be-dismantled parts in the to-be-dismantled area according to the hotel BIM model; arranging multiple stress monitoring units on the building of the emergency hotel, the multiple stress monitoring units are used together to monitor the stress changes of the building of the emergency hotel; and completing the dismantling of the temporary construction layer according to the final dismantling order. By utilizing the method for dismantling an emergency hotel of the present invention, the dismantling of the temporary construction layer can be completed well, and the integrity and safety of the building structure of the emergency hotel after dismantling are guaranteed, without affecting the subsequent operation of the hotel.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to an emergency hotel demolition method. Background Art

[0002] Emergency hotels that combine peacetime and epidemic situations refer to medical isolation points that are temporarily built in hotels in the face of an epidemic. Considering that emergency hotels will continue to operate as ordinary hotels after the epidemic is over, in order to ensure the operating quality of the hotel, the medical isolation points that have been built need to be dismantled.

[0003] At present, the medical isolation points built in practice are mainly temporary structures on the first and second floors. During the demolition process, it is necessary to consider that the partition walls outside the elevator core tube on the first floor can be freely demolished or moved in the future. At the same time, it is also necessary to consider how to demolish the second floor slab to finally realize that the first floor of the hotel is a lobby with sufficient height. Therefore, under the current background, a guiding plan for the reasonable demolition of emergency hotels is needed. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an emergency hotel demolition method, which solves the problem of lack of a reasonable guidance scheme for demolishing emergency hotels in the current context.

[0005] The emergency hotel demolition method according to an embodiment of the present invention comprises the following steps:

[0006] Acquire parameter data of an emergency hotel, wherein the parameter data represents a physical structure of the emergency hotel;

[0007] Constructing a hotel BIM model of the emergency hotel according to the parameter data;

[0008] Determine the area to be demolished and the area to be retained of the temporary construction layer in the emergency hotel; wherein the temporary construction layer is a housing area added by adding a mezzanine in the building of the emergency hotel;

[0009] Determine the final demolition order of the multiple components to be demolished in the area to be demolished according to the hotel BIM model;

[0010] Arrange a plurality of stress monitoring units on the building of the emergency hotel, and the plurality of stress monitoring units are used together to monitor stress changes of the building of the emergency hotel;

[0011] The temporary construction layer is dismantled according to the final dismantling sequence.

[0012] The emergency hotel demolition method according to the embodiment of the present invention has at least the following technical effects: by using BIM technology to establish a three-dimensional model of the hotel, the structure of the emergency hotel under various professions can be more intuitively observed and analyzed; according to the modification requirements of the subsequent operation of the hotel, the demolition scope of the temporary construction layer can be determined; with the help of the BIM model, multiple demolition sequences of the temporary construction layer are animatedly simulated, and the final demolition sequence is obtained after comparison; deformation observation is performed by setting deformation observation points to ensure that the demolition of the emergency hotel can be carried out safely; according to the final demolition sequence, the temporary construction layer of the emergency hotel can be smoothly demolished, so that the first-floor lobby of the hotel is a large space with sufficient height; using the emergency hotel demolition method of the present invention, the demolition of the temporary construction layer can be well completed, and the integrity and safety of the building structure of the emergency hotel after demolition are guaranteed, without affecting the subsequent operation of the hotel.

[0013] According to some embodiments of the present invention, before completing the dismantling of the temporary construction layer according to the final dismantling sequence, the following steps are also included:

[0014] Based on the structural design software and the BIM model of the hotel, the structural functions of the steel columns and steel beams in the area to be demolished before demolition are analyzed so that the emergency hotel can meet the hotel's usage requirements after completing the demolition of the temporary construction layer.

[0015] According to some embodiments of the present invention, the hotel usage requirements include at least: the floor slabs outside the core tube area and the steel beams outside the core tube area in the area to be demolished can be demolished, and the partition walls in the area to be demolished can be freely moved or demolished.

[0016] According to some embodiments of the present invention, before completing the dismantling of the temporary construction layer according to the final dismantling sequence, the following steps are also included:

[0017] Based on the structural design software and the BIM model of the hotel, the structural strength of the building of the emergency hotel after the area to be demolished is verified.

[0018] According to some embodiments of the present invention, the calculation of the structural strength of the building of the emergency hotel after the demolition of the area to be demolished based on the structural design software and the hotel BIM model includes the following steps:

[0019] Based on the structural design software, the steel columns of the reserved area of ​​the temporary construction layer are defined in the hotel BIM model as square steel tube concrete columns, and the standard layer steel columns other than the temporary construction layer are hollow square steel tube columns, and the bearing capacity performance analysis is performed in the structural design software to obtain the structural strength data of the building of the emergency hotel after the demolition of the area to be demolished;

[0020] The structural safety status of the building of the emergency hotel is determined according to the structural strength data and a preset structural strength threshold.

[0021] According to some embodiments of the present invention, the parameter data includes: architectural professional data, structural professional data, curtain wall professional data, electromechanical professional data, and steel structure professional data;

[0022] The method of constructing the hotel BIM model of the emergency hotel according to the parameter data comprises the following steps:

[0023] Generate corresponding multiple BIM model files respectively according to the architectural professional data, the structural professional data, the curtain wall professional data, the electromechanical professional data, and the steel structure professional data;

[0024] Based on the BIM lightweight collaborative platform, the corresponding multiple BIM model files are integrated to build the hotel BIM model.

[0025] According to some embodiments of the present invention, determining the final removal order of the plurality of components to be removed in the area to be removed comprises the following steps:

[0026] Determining multiple removal orders of multiple to-be-removed components in the to-be-removed area;

[0027] Based on the hotel BIM model, simulated demolition is performed for each demolition sequence, and a construction benefit index of each demolition sequence during actual demolition is determined, wherein the construction benefit index at least includes the total construction time;

[0028] At least by comparing the total construction time under each of the demolition sequences, the demolition sequence with the shortest total construction time is determined as the final demolition sequence.

[0029] According to some embodiments of the present invention, the area to be demolished includes: bedroom soft furnishings, electromechanical pipelines, toilets, partition walls, floor slabs outside the core tube area, and steel beams outside the core tube area; the reserved area includes: exterior walls, walls in the core tube area, steel columns of the building layer, floor slabs in the core tube area, steel beams in the core tube area, and steel beams at the exterior walls;

[0030] The method of completing the dismantling of the temporary construction layer according to the final dismantling sequence comprises the following steps:

[0031] Remove bedroom soft furnishings;

[0032] Dismantle mechanical and electrical pipelines;

[0033] Demolish toilets;

[0034] removing the partition wall;

[0035] Demolishing the outer floor slabs of the core tube area;

[0036] The outer steel beams of the core tube area are removed.

[0037] According to some embodiments of the present invention, the removal of the outer floor slab in the core tube area includes the following steps:

[0038] Setting up a support frame, wherein the support frame is used to support the outer floor slab of the core tube area;

[0039] Using a water drill to drill holes, remove the central main floor slab of the outer floor slab of the core tube area;

[0040] The remaining floor slabs at the edge of the outer floor slabs in the core tube area are removed by using a pneumatic pick crushing method.

[0041] According to some embodiments of the present invention, the process of removing the steel beams outside the core tube area includes the following steps:

[0042] Based on the structural design software, the steel beam is simulated to be hung at different lifting positions, and the force data of the steel beam when being hung at each lifting position is verified, so as to obtain the lifting position with the minimum force data and use it as the optimal lifting position;

[0043] According to the optimal lifting position, the steel beams of the temporary construction layer are hung on the upper floor slab and steel beams of the temporary construction layer by using a fall chain or a pulley;

[0044] Unload the steel beam.

[0045] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0047] Figure 1 It is a flow chart of the emergency hotel demolition method according to an embodiment of the present invention;

[0048] Figure 2 is a schematic diagram of a steel frame of a temporary construction layer according to an embodiment of the present invention;

[0049] Figure 3 Schematic diagram of the disassembly of the steel frame of the temporary construction layer of an embodiment of the present invention;

[0050] Figure 4 It is a schematic diagram of the steel frame after the temporary construction layer of the embodiment of the present invention is removed. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of the present invention, the meaning of "a plurality" is more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0054] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, disconnecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0055] Reference below Figures 1 to 4 The emergency hotel demolition method according to the present invention is described.

[0056] Acquire parameter data of the emergency hotel, where the parameter data represents the physical structure of the emergency hotel;

[0057] Construct the hotel BIM model of the emergency hotel based on parameter data;

[0058] Determine the areas to be demolished and the areas to be retained for the temporary structures in the emergency hotel; the temporary structures refer to the housing areas added to the building of the emergency hotel by adding interlayers;

[0059] Determine the final demolition order of multiple components to be demolished in the area to be demolished based on the hotel BIM model;

[0060] A plurality of stress monitoring units are arranged on the building of the emergency hotel, and the plurality of stress monitoring units are used together to monitor stress changes of the building of the emergency hotel;

[0061] Complete the dismantling of the temporary structure according to the final dismantling order.

[0062] refer to Figure 1According to the two-dimensional design drawings of emergency hotels under different professions, the parameter data of emergency hotels can be obtained. Using BIM technology, the parameter data can be used to build a three-dimensional hotel BIM model to simulate the actual structure of the emergency hotel. According to the renovation drawings of the subsequent operation of the emergency hotel, determine the areas to be demolished and the reserved areas of the temporary construction layer, and arrange the cut-off lines on the temporary construction layer to distinguish the areas to be demolished and the reserved areas. Figures 2 to 4 , the actual temporary construction layers are mainly the first and second floors. Continue to use BIM technology to simulate the demolition of the to-be-demolished areas of the hotel's BIM model in different demolition orders. Specifically, it can be achieved through construction animation software such as 3Dmax, Maya, and Fuzor. Combined with the actual construction situation, multiple demolition orders are compared to obtain the final demolition order. Stress and strain observation points are arranged on the steel columns and steel beams of the upper layer of the temporary construction layer of the emergency hotel (that is, the third floor in reality), and the stress changes of the building of the emergency hotel are monitored in real time using the stress and strain monitoring system to ensure the safety of subsequent demolition construction. Finally, the demolition of the temporary construction layer is completed according to the final demolition order.

[0063] According to the emergency hotel demolition method of the embodiment of the present invention, by using BIM technology to establish a three-dimensional model of the hotel, the structure of the emergency hotel under various professions can be more intuitively observed and analyzed; according to the transformation requirements of the subsequent operation of the hotel, the demolition scope of the temporary construction layer can be determined; with the help of the BIM model, multiple demolition sequences of the temporary construction layer are animatedly simulated, and the final demolition sequence is obtained after comparison; deformation observation is performed by setting deformation observation points to ensure that the demolition of the emergency hotel can be carried out safely; according to the final demolition sequence, the temporary construction layer of the emergency hotel can be smoothly demolished, so that the lobby on the first floor of the hotel is a large space with sufficient height; using the emergency hotel demolition method of the present invention, the demolition of the temporary construction layer can be well completed, and the integrity and safety of the building structure of the emergency hotel after demolition are guaranteed, without affecting the subsequent operation of the hotel.

[0064] In some embodiments of the present invention, before the temporary construction layer is dismantled according to the final dismantling sequence, the following steps are further included:

[0065] Based on the structural design software and the hotel BIM model, the structural functions of the steel columns and beams in the area to be demolished before demolition are analyzed so that the emergency hotel can meet the hotel's usage needs after completing the demolition of the temporary structure.

[0066] In order to ensure that the subsequent renovation of the hotel can proceed smoothly, structural design software can be used before demolition, combined with the hotel BIM model, to analyze the structural functions of steel columns and steel beams in the area to be demolished before demolition, to ensure that the actual demolition construction process does not conflict with the requirements of the subsequent renovation of the hotel. Figures 2 to 4The steel structure in the figure is constructed by structural software. Specifically, in some embodiments, the structural design software may adopt Yingjianke structural design software.

[0067] In some embodiments of the present invention, the hotel usage requirements at least include: the outer floor slabs and outer steel beams of the core tube area in the area to be demolished can be demolished; and the partition walls in the area to be demolished can be freely moved or demolished.

[0068] When analyzing the structural functions of steel columns and steel beams in the area to be demolished before demolition, the connection nodes of steel beams and steel columns are designed as hinged joints, so as to facilitate the rapid demolition of the floor slabs and steel beams outside the core tube area in the area to be demolished; at the same time, the steel frame composed of steel beams and steel columns adopts a common steel frame system, so that the partition walls in the area to be demolished can be freely moved or demolished during the subsequent renovation of the hotel. Figures 2 to 4 The steel columns and steel beams in the figure are hingedly connected, and the steel frame formed by the steel beams and steel columns is a common steel frame system. Compared with the steel frame support system that uses steel supports outside the core tube area and uses less steel, the common steel frame system has fewer restrictions on the spatial layout adjustment of the subsequent renovation of the emergency hotel and has less impact on the demolition construction progress.

[0069] In some embodiments of the present invention, before the temporary construction layer is dismantled according to the final dismantling sequence, the following steps are further included:

[0070] Based on the structural design software and the hotel BIM model, the structural strength of the emergency hotel building is verified after the area to be demolished is demolished.

[0071] In order to ensure the safety and reliability of the emergency hotel building after demolition, structural design software can be used before demolition, combined with the hotel BIM model, to verify the structural strength of the emergency hotel building after demolition of the area to be demolished, to ensure that the demolition plan of the emergency hotel can be safely applied to the actual demolition construction.

[0072] In some embodiments of the present invention, based on the structural design software and the hotel BIM model, the structural strength of the building of the emergency hotel after the area to be demolished is verified, including the following steps:

[0073] Based on the structural design software, the steel columns of the reserved area of ​​the temporary construction layer defined in the hotel BIM model are all square steel tube concrete columns, and the standard layer steel columns of the non-temporary construction layer are all hollow square steel tube columns. The bearing capacity performance analysis is carried out in the structural design software to obtain the structural strength data of the emergency hotel building after the demolition of the area to be demolished;

[0074] The structural safety status of the emergency hotel building is determined based on the structural strength data and the preset structural strength threshold.

[0075] Specifically, determining the structural safety status of the emergency hotel's building requires comparing the structural strength data with the structural strength threshold: when the structural strength data is greater than the structural strength threshold, the structural strength of the emergency hotel's building meets the safety standards; when the structural strength data is less than or equal to the structural strength threshold, the structural strength of the emergency hotel's building does not meet the safety standards.

[0076] As shown in Table 1, the structural strength data of the building of the emergency hotel after the demolition of the area to be demolished is based on the bearing capacity calculated by the structural software. Among them, the X-direction bearing capacity and the Y-direction bearing capacity respectively represent the bearing capacity of a floor slab in two vertical directions, and the unit is KN. Ratio_X and Ratio_Y respectively represent the bearing capacity ratio of a floor slab to the floor slab above it in the X and Y directions. Article 3.5.3 of the Technical Code for High-rise Concrete Structures JGJ3-2010 stipulates that the inter-layer shear bearing capacity of the floor lateral force resistance structure of Class A high-rise buildings should not be less than 80% of the shear bearing capacity of the adjacent upper layer, and should not be less than 65% of the shear bearing capacity of the adjacent upper layer; the inter-layer shear bearing capacity of the floor lateral force resistance structure of Class B high-rise buildings should not be less than 75% of the shear bearing capacity of the adjacent upper layer. Among them, the building height is less than 120 meters for Class A height, and the building height is greater than or equal to 120 meters and less than 140 meters for Class B height. Therefore, according to the above regulations, the Ratio_X and Ratio_Y of the floor are required to be greater than 0.8 or 0.75, otherwise the floor will become a weak layer, resulting in vertical irregularity. Therefore, in practice, for Class A high-rise buildings, Ratio_X=Ratio_Y=0.8 can be set as the setting size of the structural strength threshold, and for Class B high-rise buildings, Ratio_X=Ratio_Y=0.75 can be set as the setting size of the structural strength threshold.

[0077] In some embodiments, the emergency hotel is a 20-story (about 60 meters high) building, which is a Class A high-rise building. When the first and second floors of the emergency hotel are temporary construction layers, if you want to determine whether the structural strength of the building of the emergency hotel meets the safety standards after the demolition of the area to be demolished, the most important thing is to compare the Ratio_X value and Ratio_Y value representing the structural strength of the temporary construction layer with the structural strength threshold of 0.8. If it is considered that the steel columns of the first and second floors are cast with micro-expansive self-compacting concrete, then in the structural software simulation, the steel columns of the construction layer are equivalent to defining square steel tube concrete columns, and the X-direction bearing capacity and Y-direction bearing capacity of each layer can be simulated, thereby obtaining the Ratio_X value and Ratio_Y value of each layer. According to the data in Table 1, the Ratio_X and Ratio_Y values ​​of floor number 2 and floor number 3 respectively reflect the structural strength of the first floor and the second floor, and their values ​​are all greater than 0.8 (the Ratio_X and Ratio_Y values ​​of other floors are also greater than 0.8), that is, the structural strength of the emergency hotel building meets the safety standards. Therefore, through the above-mentioned simulated safety verification, the safety of the building of the emergency hotel after demolition is verified, ensuring that the first and second floors after demolition have good bearing capacity, and preventing the first and second floors from being weak layers.

[0078] Table 1

[0079]

[0080] In some embodiments of the present invention, the parameter data includes: architectural professional data, structural professional data, curtain wall professional data, electromechanical professional data, and steel structure professional data;

[0081] Building a hotel BIM model of an emergency hotel based on parameter data includes the following steps:

[0082] Generate multiple corresponding BIM model files according to the architectural data, structural data, curtain wall data, electromechanical data, and steel structure data;

[0083] Based on the BIM lightweight collaborative platform, the corresponding multiple BIM model files are integrated to build the hotel BIM model.

[0084] For the data of architecture, structure, curtain wall, electromechanical and steel structure, the corresponding rvt. format files are obtained based on Revit software. The rvt. format files of different disciplines are uploaded to the BIM lightweight collaboration platform and the model integration operation is performed, so as to finally build the hotel BIM model.

[0085] In some embodiments of the present invention, determining a final removal order of a plurality of components to be removed in a to-be-removed area comprises the following steps:

[0086] Determine multiple removal orders of multiple to-be-removed parts in the to-be-removed area;

[0087] Based on the hotel BIM model, simulate the demolition for each demolition sequence and determine the construction benefit index of each demolition sequence during actual demolition. The construction benefit index at least includes the total construction time.

[0088] At least by comparing the total construction time under each demolition sequence, determine the demolition sequence with the shortest total construction time as the final demolition sequence.

[0089] In some embodiments of the present invention, the areas to be demolished include: bedroom soft furnishings, electromechanical pipelines, toilets, partition walls, floor slabs outside the core tube area, and steel beams outside the core tube area; the areas to be retained include: exterior walls, walls in the core tube area, steel columns of the building layer, floor slabs in the core tube area, steel beams in the core tube area, and steel beams at the exterior walls;

[0090] Complete the demolition of the temporary structure according to the final demolition sequence, including the following steps:

[0091] Remove bedroom soft furnishings;

[0092] Dismantle mechanical and electrical pipelines;

[0093] Demolish toilets;

[0094] Removal of partition walls;

[0095] Remove the outer floor slab in the core area;

[0096] Remove the outer steel beams in the core area.

[0097] refer to Figures 2 to 4 , taking the first and second floors as temporary construction layers as an example, Figure 2 Indicates the steel structure of the area to be demolished (other parts to be demolished are not drawn), Figure 3 The process of splitting the first floor and the second steel structure is shown in the figure. Figure 4 It means the steel columns of the first floor, the floor slabs in the core tube area, the steel beams in the core tube area, and the steel beams at the exterior walls in the area to be retained after demolition (the exterior walls, the walls in the core tube area, and the steel columns of the second floor are not drawn). Figures 2 to 4 As shown, the core tube area is located in the middle of the floor structure, that is, the building structure shown has two core tubes, the exterior walls are located at the four sides of the building structure, and the partition walls are set between multiple steel columns in the middle of the floor excluding the exterior walls. In the figure, multiple steel columns are placed vertically, and multiple steel beams are placed horizontally on the multiple steel columns. Floor slabs can be placed between the multiple steel beams.

[0098] Specifically, when any of the above-mentioned steps of dismantling the temporary structure is being carried out, when a certain amount of bagged construction waste is formed on site, it will be immediately transported downstairs via the freight elevator and transported out of the emergency hotel by a special construction waste truck to prevent secondary pollution. The waste will be cleared as it is demolished, thus ensuring the construction progress and protecting the environment.

[0099] For the removal of bedroom soft furnishings, the specific steps include:

[0100] Turn off the indoor power supply;

[0101] Taking the exterior wall interior of the building as the boundary line, locate the arranged cutting line to determine the demolition scope;

[0102] Cut off the soft furnishing connection wires and disassemble the bedroom soft furnishings such as beds and cabinets.

[0103] For the removal of mechanical and electrical pipelines, the specific steps include:

[0104] Cut off the indoor water and gas supply, and turn off the indoor power supply;

[0105] Position the arranged resection line and provide safety protection for the resection fracture;

[0106] According to the determined demolition scope and in the order of height of each system, the demolition is carried out from low to high, and finally the air-conditioning system, ventilation system, water inlet and drainage system, electrical system and the brackets and other accessories of each system are demolished in turn.

[0107] For the removal of the bathroom, the specific steps include:

[0108] Conduct finished product protection acceptance;

[0109] Cut off water and electricity indoors;

[0110] Remove the sanitary ware and hardware products in the bathroom and seal the drain outlet;

[0111] Remove the stone bricks on the walls and floors of the bathroom, and clean the bonding layer of the stone bricks;

[0112] Remove the waterproof protective layer in the bathroom.

[0113] Specifically, after the protection of the finished products on site is completed, a special acceptance is carried out for each room and the scope of the protection area. Only after the acceptance is qualified can the bathroom demolition work be carried out. Before the demolition work is implemented, the direction of the water supply and drainage pipes is marked on the wall and the ground in combination with the original construction drawings and the water supply and drainage conditions on site, and the water supply valves in the guest rooms are closed, and the lighting and sockets in the guest rooms are turned off. Before removing the stone materials on the walls and floors of the bathroom, the sanitary ware hardware, glass partitions, glass doors, bathtubs, toilets, small appliances, switch panels and other items installed in the bathroom are protectively removed. After the hardware and sanitary ware are removed, the toilet and floor drain outlets are sealed with pipe caps, and the threads inside the water pipes are sealed with plugs.

[0114] The demolition of partition walls includes the following steps:

[0115] Remove the interior partition wall facing panels;

[0116] Since the partition wall is connected to the steel beam with fasteners, the partition wall can be dismantled by simply uninstalling the fasteners.

[0117] Specifically, in some embodiments, according to the requirements of subsequent renovation of the hotel, some partition walls can be freely moved and reinstalled to meet the layout requirements.

[0118] In some embodiments of the present invention, removing the outer floor slab of the core tube area includes the following steps:

[0119] Set up support frames, which are used to support the outer floor slabs in the core tube area;

[0120] The central main floor slab of the outer floor slab of the core tube area is removed by water drilling;

[0121] The remaining floor slabs on the edge of the outer floor slabs in the core tube area are removed by using pneumatic picks.

[0122] Specifically, the load-bearing capacity of the erected support frame should be greater than 2.5 times the self-weight of the dismantled beam and slab. The outer floor slab in the core tube area is a reinforced concrete block. The pneumatic pick crushing method can use an air compressor crusher to crush the concrete and remove the steel bars. In some embodiments, an electric pick crusher can also be used to replace the pneumatic pick crushing method to crush the floor slab.

[0123] In some embodiments of the present invention, removing the steel beams outside the core tube area includes the following steps:

[0124] Based on the structural design software, simulate the hanging of steel beams at different lifting positions, and verify the force data of the steel beams when hanging at each lifting position, so as to obtain the lifting position with the minimum force data and use it as the optimal lifting position;

[0125] According to the optimal lifting position, use the fall chain or pulley to hang the steel beams of the temporary construction layer to the upper floor slab and steel beams of the temporary construction layer;

[0126] Unload the steel beam.

[0127] Specifically, the steel beam can adopt a steel frame system without corbels, so that the nodes on the steel column can be removed cleanly without affecting the later use requirements, and the overall appearance is beautiful and neat. The connection node between the steel beam and the steel column is a hinged node. When removing the steel beam, there is no need for electric welding machine argon arc welding cutting machine to dismantle it, and the high-strength bolts can be directly removed.

[0128] In some embodiments, taking the first and second floors as temporary construction layers as an example, the steel beams outside the core tube area are removed, and the specific steps are as follows:

[0129] In the structural design software, simulate the deadweight load of the main steel beam of the second floor slab and apply it to the steel beam of the third floor slab through two hanging points, and check the stress of the steel beam of the third floor slab to ensure the overall stability of the structure. If the steel beam of the third floor slab cannot bear the entire load of the steel beam of the second floor, consider reducing the impact on the steel beam of the third floor by prohibiting the use of the guest rooms on the third floor during the steel beam removal stage, moving the hanging point as close as possible to the beam end support, and removing and loading in batches. The optimal construction hanging plan is obtained through simulation;

[0130] Use fall chains or pulleys to hang the main steel beams of the second floor slab on the steel beams of the third floor slab. Arrange the hanging points of the steel beams according to the simulation analysis results to ensure the overall stability of the structure.

[0131] After verifying that the lifting rope is safe and reliable, combined with the simulation results, the steel beam connection bolts are removed in sections by first removing the secondary beam and then the main beam. After the high-strength bolts at both ends of the steel beam are completely removed, the operators are directed to slowly lower the steel beam to the ground through each pulley synchronously and then remove it in sections.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0133] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An emergency hotel demolition method, characterized in that: The following steps are involved: Acquire parameter data of an emergency hotel, wherein the parameter data represents a physical structure of the emergency hotel; Constructing a hotel BIM model of the emergency hotel according to the parameter data; Determine the area to be demolished and the area to be retained of the temporary construction layer in the emergency hotel; wherein the temporary construction layer is a housing area added by adding a mezzanine in the building of the emergency hotel; Determine the final demolition order of the multiple components to be demolished in the area to be demolished according to the hotel BIM model; Arrange a plurality of stress monitoring units on the building of the emergency hotel, and the plurality of stress monitoring units are used together to monitor stress changes of the building of the emergency hotel; Complete the demolition of the temporary structure layer according to the final demolition sequence; Before the temporary construction layer is dismantled according to the final dismantling sequence, the following steps are also included: Based on the structural design software and the hotel BIM model, the structural functions of the steel columns and steel beams in the area to be demolished before demolition are analyzed, so that the emergency hotel can meet the hotel's use requirements after the demolition of the temporary construction layer is completed; The hotel use requirements at least include: the outer floor slabs and outer steel beams of the core tube area in the area to be demolished can be demolished; and the partition walls in the area to be demolished can be freely moved or demolished; Before the temporary construction layer is dismantled according to the final dismantling sequence, the following steps are also included: Based on the structural design software and the hotel BIM model, the structural strength of the building of the emergency hotel after the area to be demolished is verified; The method of calculating the structural strength of the building of the emergency hotel after the to-be-demolished area is removed based on the structural design software and the hotel BIM model comprises the following steps: Based on the structural design software, the steel columns of the reserved area of ​​the temporary construction layer are defined in the hotel BIM model as square steel tube concrete columns, and the standard layer steel columns other than the temporary construction layer are hollow square steel tube columns, and the bearing capacity performance analysis is performed in the structural design software to obtain the structural strength data of the building of the emergency hotel after the demolition of the area to be demolished; The structural safety status of the building of the emergency hotel is determined according to the structural strength data and a preset structural strength threshold.

2. The emergency hotel demolition method according to claim 1, characterized in that: The parameter data include: architectural professional data, structural professional data, curtain wall professional data, electromechanical professional data, and steel structure professional data; The method of constructing the hotel BIM model of the emergency hotel according to the parameter data comprises the following steps: Generate corresponding multiple BIM model files respectively according to the architectural professional data, the structural professional data, the curtain wall professional data, the electromechanical professional data, and the steel structure professional data; Based on the BIM lightweight collaborative platform, the corresponding multiple BIM model files are integrated to build the hotel BIM model.

3. The emergency hotel demolition method according to claim 1, characterized in that: The step of determining the final removal order of the multiple components to be removed in the area to be removed comprises the following steps: Determining multiple removal orders of multiple to-be-removed components in the to-be-removed area; Based on the hotel BIM model, simulated demolition is performed for each demolition sequence, and a construction benefit index of each demolition sequence during actual demolition is determined, wherein the construction benefit index at least includes the total construction time; At least by comparing the total construction time under each of the demolition sequences, the demolition sequence with the shortest total construction time is determined as the final demolition sequence.

4. The emergency hotel demolition method according to claim 1, characterized in that: The areas to be demolished include: bedroom soft furnishings, electromechanical pipelines, toilets, partition walls, floor slabs outside the core tube area, and steel beams outside the core tube area; the areas to be retained include: exterior walls, walls in the core tube area, steel columns of the construction layer, floor slabs in the core tube area, steel beams in the core tube area, and steel beams at the exterior walls; The method of completing the dismantling of the temporary construction layer according to the final dismantling sequence comprises the following steps: Remove bedroom soft furnishings; Dismantle mechanical and electrical pipelines; Demolish toilets; Removal of partition walls; Remove the outer floor slab in the core area; Remove the outer steel beams in the core area.

5. The emergency hotel demolition method according to claim 4, characterized in that: The removal of the outer floor slab in the core tube area comprises the following steps: Setting up a support frame, wherein the support frame is used to support the outer floor slab of the core tube area; Using a water drill to remove the central main floor slab of the outer floor slab of the core tube area; The remaining floor slabs at the edge of the outer floor slabs in the core tube area are removed by using a pneumatic pick crushing method.

6. The emergency hotel demolition method according to claim 4, characterized in that: The process of removing the steel beams outside the core tube area comprises the following steps: Based on the structural design software, the steel beam is simulated to be hung at different lifting positions, and the force data of the steel beam when being hung at each lifting position is verified, so as to obtain the lifting position with the minimum force data and use it as the optimal lifting position; According to the optimal lifting position, the steel beams of the temporary construction layer are hung on the upper floor slab and steel beams of the temporary construction layer by using a fall chain or a pulley; Unload the steel beam.

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