Installation method of vertical shaft air pipe of super-high shared structure

Abstract

The application provides a super-high shared structure vertical shaft air pipe installation method, and belongs to the technical field of building construction. The super-high shared structure vertical shaft air pipe installation method is early preparation, a BIM model of the vertical shaft air pipe is constructed, the installation support position and size of the vertical shaft air pipe are determined, hydraulic calculation is carried out, the size of the installation support of the vertical shaft air pipe in one direction is unified, and the BIM model of the vertical shaft air pipe is optimized; the BIM model of the vertical shaft air pipe is divided according to the floor characteristics, the installation support position of the vertical shaft air pipe is determined, and the installation support position is fixed; the standard section and the connecting section of the vertical shaft air pipe are processed respectively; the first layer support is installed at the bottom of the vertical shaft air pipe, and the vertical shaft air pipe is installed; a stability detection system is installed on the vertical shaft air pipe and used for monitoring the stability of the vertical shaft air pipe in real time; and the method can solve the problems that the existing vertical shaft air pipe construction is difficult to change the angle flexibly and has poor sealing performance.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a method for installing ventilation ducts in a shared structure of a super high-rise building. Background Technology

[0002] Vertical ductwork refers to air ducts installed centrally within a building for ventilation, exhaust, and smoke extraction. Its advantages include excellent ventilation, minimal space requirements, and ease of installation and maintenance, making it widely used in high-rise buildings, commercial complexes, hospitals, subways, and other public places. A typical vertical ductwork system includes intake and return air ducts, branch ducts, smoke extraction ducts, and related accessories and equipment such as filters and fan-shaped rings. In a vertical ductwork system, the air inlets and outlets are usually located at the top and bottom of the building, while the ductwork connects different levels of pipes. By adhering to specific duct design specifications, it effectively achieves indoor air circulation and purification. Furthermore, vertical ductwork can also extract smoke, effectively removing smoke and harmful gases in emergency situations such as fires, ensuring the safety of personnel.

[0003] In high-rise buildings, duct systems for pressurization, smoke extraction, air supply, and ventilation are installed to meet fire protection and indoor air quality requirements. To increase the usable floor area, multiple vertical ducts are often installed within the same shaft. Due to the shaft's location across multiple floors, its high elevation, narrow working surface, and the presence of supports, existing vertical ductwork construction suffers from difficulties in flexibly changing angles and poor sealing. Summary of the Invention

[0004] In view of this, the present invention provides a method for installing vertical shaft ventilation ducts in a shared structure of super high-rise buildings, which can solve the problems of difficulty in flexibly changing the angle and poor sealing in the construction of existing vertical shaft ventilation ducts.

[0005] This invention is implemented as follows:

[0006] This invention provides a method for installing ventilation ducts in a shared structure of a super high-rise building, comprising the following steps:

[0007] S10: Preliminary preparation; The preliminary preparation includes collecting data on the installation location and dimensions of the vertical shaft ducts, and preliminarily determining their locations based on the direction of the duct branch pipes;

[0008] S20: Construct the BIM model of the vertical shaft duct; use OpenBuildlings Designer software to construct the BIM model of the vertical shaft duct based on the construction drawings of the vertical shaft duct and the installation location and size data of the vertical shaft duct;

[0009] S30: Optimize the BIM model of the vertical shaft duct; based on the position and size of the installation bracket of the vertical shaft duct, and after performing hydraulic calculations, unify the size of the installation bracket of the vertical shaft duct in one direction, and optimize the BIM model of the vertical shaft duct.

[0010] S40: Divide the BIM model of the vertical shaft duct; divide the BIM model of the vertical shaft duct according to the characteristics of the floors, and divide it into standard sections and connection sections;

[0011] S50: Determine the position of the mounting bracket for the vertical shaft duct and fix it in place;

[0012] S60: Process the standard section and connecting section of the vertical shaft duct respectively;

[0013] S70: Install a first-level bracket at the bottom of the vertical shaft duct to support the entire vertical shaft duct; install the vertical shaft duct.

[0014] S80: Install a stability detection system; install the stability detection system on the vertical shaft duct to monitor the stability of the vertical shaft duct in real time;

[0015] S90: Testing and inspection; After the installation of the vertical shaft duct is completed, light leakage detection is carried out.

[0016] Based on the above technical solution, the method for installing vertical shaft ventilation ducts in a shared structure of ultra-high-rise buildings according to the present invention can be further improved as follows:

[0017] The specific steps for determining the location of the mounting bracket for the vertical shaft duct and fixing it include:

[0018] The first step is to determine the installation method of the vertical shaft air ducts based on their quantity and relative position.

[0019] The second step is to determine the location of the installation brackets for the vertical shaft duct based on its location. At a distance of more than 4m from the ground, the vertical shaft duct needs to be equipped with load-bearing brackets and limiting brackets at intervals to strengthen the support of the vertical shaft duct. The load-bearing brackets are set at the connection position of the vertical shaft duct, and the limiting brackets are set on the outside of the vertical shaft and fixed by clamps.

[0020] The mounting brackets for the vertical shaft ducts can be installed in two ways: in combination or independently.

[0021] The load-bearing bracket is made of 10# channel steel and is connected and fixed to the vertical shaft air duct using dovetail screws.

[0022] Furthermore, the specific steps for processing the standard sections and connecting sections of the vertical shaft duct include:

[0023] The first step is to process the standard section, which is an external flange duct, according to the dimensions determined by the BIM model of the vertical shaft duct.

[0024] The second step is to process the connecting section, which is a C-type inner and outer flange connecting duct and an inner and outer flange connecting duct. The inner and outer flange connecting ducts are processed according to the dimensions determined by the BIM model of the vertical shaft duct. Inner flange and outer flange are respectively provided at both ends for fixing the connecting section.

[0025] The third step is to assemble the standard segment and the connecting segment by connecting the connecting segment to the standard segment.

[0026] Furthermore, the processing of the C-type internal and external flange connection section duct specifically includes:

[0027] The first step is to cut the C-type inner and outer flange connection section of the duct. The cutting length L can be referenced as: L=A+2*B+2*D(mm);

[0028] In the formula: L = width of the vertical shaft duct cutting material, mm;

[0029] A = Length of the vertical shaft duct, mm;

[0030] B = Width of the vertical shaft duct, mm;

[0031] D = the flange of the C-type internal and external flange connection section of the duct, mm;

[0032] The second step is to install two angle steels on the inner opening side of the C-type inner and outer flange connection section duct to connect the inner flange and outer flange of the C-type inner and outer flange connection section duct. On the inner side of the outer flange opening, weld a 50*5 steel strip and weld nuts to the angle steel and steel plate for connecting the plug plate to the C-type inner and outer flange connection section duct.

[0033] The third step is to process the flange frame and the blockage plate according to the design dimensions, and select a suitable gasket according to the function of the C-type inner and outer flange connection section duct, and fix it on the blockage plate.

[0034] Furthermore, the specific steps for installing the vertical shaft duct include:

[0035] The first step is to install the inner ductwork. According to the positions of the BIM model of the vertical shaft ductwork, each standard section of the vertical shaft ductwork is installed. The construction is carried out using the direct installation method. The hoisting equipment is set up at the top of the vertical shaft. After each standard section of the vertical shaft ductwork is installed, the interface position is adjusted. The inner and outer flanges of the connecting section are fixedly connected by positioning bolts to fix the standard section to the connecting section, thus completing the installation of the inner ductwork.

[0036] The second step is to install the outer ductwork.

[0037] Furthermore, the specific steps for installing the stability detection system on the vertical shaft duct to monitor the stability of the vertical shaft duct in real time include:

[0038] The first step is to set up several data acquisition stations on the support of the vertical shaft duct. The data acquisition stations are evenly distributed in a grid. Each data acquisition station includes a detector, a data acquisition instrument, a data transmission device at the acquisition end, and a data processing terminal.

[0039] The second step is to set the initial parameters of the data acquisition station, monitor the safety and stability of the vertical shaft duct in real time, and record the data.

[0040] Third, the detector detects the fluctuation signal of the vertical shaft duct in real time and transmits the data to the data acquisition instrument. The data acquisition instrument digitizes the data and stores it on its disk. At the same time, the acquired signal is amplified and power matched and then transmitted to the data processing terminal through the acquisition terminal data transmission device. The data processing terminal performs simple logical processing and classification on the data and then transmits it to the computer workstation through a router.

[0041] Fourth, the processing unit of the computer workstation extracts data from the original data storage area through the system area of ​​the array disk via software control, analyzes the data, and generates monitoring result information. The monitoring result information is transmitted to the security center via the mobile network, and instructions are given based on the results.

[0042] The system comprises a data acquisition unit that digitizes and stores the signals acquired by the detector, and a data transmission device that transmits the data stored in the data acquisition unit to a data processing terminal. The data processing terminal then processes and analyzes the acquired data. The data acquisition station powers the detector, data acquisition unit, and data transmission device via solar panels. The solar panels consist of multiple polycrystalline photovoltaic cells with a maximum power of 120W and adjustable output voltages of 12V and 24V. The detector is a three-component detector with a three-channel accelerometer, a sensitivity of 250V / m / s, a dynamic range of 110dB, and a sampling frequency that can be set to 200Hz or 500Hz, with a bandwidth of 0.03Hz-100Hz. The data transmission device includes a local area network (LAN) bridge. The LAN bridge has a directional antenna, specifically a butterfly antenna, with a maximum communication distance of 1000m, a 5GHz communication frequency, an antenna gain of 30dBi, a maximum power consumption of 50W, and uses the 802.11ac communication protocol.

[0043] Furthermore, the processing unit of the computer workstation, through software control of the system area of ​​the array disk, extracts data from the original data storage area, analyzes it, and generates monitoring result information. The monitoring result information is transmitted to the security center via a mobile network, and the specific steps for issuing instructions based on the results include:

[0044] The first step involves the computer workstation's processing unit acquiring micro-vibration wavelengths and stability results, establishing a stability neural network model, denoising and analyzing the acquired micro-vibration wavelengths to identify the signal waveform, and analyzing the amplitude and phase characteristics of the effective signal. The acquired wavelength amplitude, phase, and time difference are input for training, and the slope stability results are used as the training output. The measured data are then input into the neural network model to obtain the stability results.

[0045] The second step is to determine the location of instability based on the stable structure, and to use the wavelength amplitude, phase, and time difference to calculate the spatial location of the unstable area at the bottom of the vertical shaft duct, the rock initiation time, and the fracturing energy.

[0046] The third step is to use the above stability results, along with the regional spatial location and rupture energy of the vertical shaft duct, to determine the safety factor of the vertical shaft duct through the convergence of the long short-term memory model RD-LSTM.

[0047] The fourth step involves iteratively training different historical training samples, assigning different weight factors to the training data, and adjusting the RD-LSTM model and weight coefficients to achieve error convergence.

[0048] The safety factor is represented by F. A safety factor F ≤ 1.00 is considered unstable, a safety factor 1.00 ≤ F ≤ 1.05 is considered understability, a safety factor 1.05 ≤ F ≤ 1.2 is considered basically stable, and F ≥ 1.2 is considered stable.

[0049] Furthermore, the specific steps for constructing the BIM model of the vertical shaft duct using OpenBuildings Designer software based on the construction drawings and the installation location and dimension data of the vertical shaft duct include:

[0050] The first step is to determine the modeling scope and modeling parameters based on the construction drawings of the vertical shaft duct and the installation location of the vertical shaft duct, and to archive and organize the data information.

[0051] The second step is to input the data information into the OpenBuildlings Designer software to generate a three-dimensional BIM model of the vertical shaft duct.

[0052] The third step is to add construction information based on the BIM model of the vertical shaft duct according to the construction requirements. The construction information includes main components, construction procedures, time schedule and material information.

[0053] The fourth step involves analyzing and calculating the construction information using OpenBuildlings Designer software to obtain collision detection, material usage calculation, cost estimation, and construction performance analysis data.

[0054] The fifth step is to optimize the BIM model of the vertical shaft duct.

[0055] Furthermore, the specific steps for conducting light leakage detection after the installation of the vertical shaft duct are completed are as follows:

[0056] After shutting down the fan, the vertical shaft duct is emptied, and a laser light or infrared scanner is used to continuously adjust the angle to detect light leakage inside the vertical shaft duct.

[0057] Furthermore, the specific steps for installing the first-floor support at the bottom of the vertical shaft duct are as follows:

[0058] The BIM model of the vertical shaft duct is used to install the first-layer support at the bottom of the vertical shaft duct to achieve uniform load; the first-layer support is the load-bearing support.

[0059] Compared with existing technologies, the beneficial effects of the present invention on the installation method of vertical shaft air ducts in a shared structure of super high-rise buildings are as follows: It utilizes BIM simulation and segmented prefabrication and assembly technology, prefabricating and assembling sections by floor, setting standard sections and connecting sections, and using conventional air ducts in combination with internal and external flange air ducts to minimize construction difficulty; it innovates the steel plate frame C-type internal and external flange air duct and angle steel frame sealing technology, solving the problem that regulations prohibit the use of self-tapping screws for air duct connection and sealing, ensuring the airtightness of the air ducts; it utilizes the optimized technology of internal flange air ducts and load-bearing supports, combining load-bearing supports with internal flanges, solving the problem of inoperability during the construction of large-diameter air ducts; it adopts air duct and support load-bearing technology, optimizing the construction process of multiple air ducts, fully utilizing the load-bearing advantages of air ducts and supports themselves, reducing scaffolding erection, and solving the problems of difficulty in flexibly changing angles and poor sealing in the construction of existing vertical shaft air ducts. Attached Figure Description

[0060] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 This is a flowchart illustrating the operation of a method for installing vertical shaft ventilation ducts in a shared structure of a super high-rise building. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0064] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] like Figure 1 The diagram shown is an operation flowchart of a method for installing vertical shaft ventilation ducts in a shared structure of a super high-rise building, provided by the present invention. The method includes the following steps:

[0068] S10: Preliminary preparation; Preliminary preparation includes collecting data on the installation location and dimensions of vertical shaft ducts, and initially determining their locations based on the direction of the duct branches;

[0069] S20: Construct a BIM model of the vertical shaft duct; Use OpenBuildlings Designer software to construct a BIM model of the vertical shaft duct based on the construction drawings and the installation location and size data of the vertical shaft duct.

[0070] S30: Optimize the BIM model of the vertical shaft duct; based on the location and size of the installation brackets of the vertical shaft duct, and after performing hydraulic calculations, unify the size of the installation brackets of the vertical shaft duct in one direction, and optimize the BIM model of the vertical shaft duct.

[0071] S40: Divide the BIM model of the vertical shaft duct; divide the BIM model of the vertical shaft duct according to the characteristics of the floors, and divide it into standard sections and connection sections;

[0072] S50: Determine the location of the mounting brackets for the vertical shaft ducts and secure them.

[0073] S60: Process the standard sections and connecting sections of the vertical shaft duct respectively;

[0074] S70: Install a first-level support frame at the bottom of the vertical shaft duct to support the entire vertical shaft duct; install the vertical shaft duct.

[0075] S80: Install a stability testing system; Install a stability testing system on the vertical shaft duct to monitor the stability of the vertical shaft duct in real time;

[0076] S90: Testing and inspection; light leakage detection is carried out after the installation of vertical shaft ducts is completed.

[0077] In the above technical solution, the specific steps for determining the installation bracket position of the vertical shaft duct and fixing it include:

[0078] The first step is to determine the installation method of the vertical shaft ducts based on their quantity and relative location.

[0079] The second step is to determine the location of the installation brackets for the vertical shaft ducts based on their location. At a height of more than 4 meters above the ground, load-bearing brackets and limiting brackets need to be installed at intervals to strengthen the support of the vertical shaft ducts. The load-bearing brackets are set at the connection points of the vertical shaft ducts, and the limiting brackets are set on the outside of the vertical shaft and fixed with clamps.

[0080] The mounting brackets for vertical shaft ducts can be installed in two ways: combined installation and independent installation.

[0081] The load-bearing bracket is made of 10# channel steel and is connected and fixed to the vertical shaft air duct with dovetail screws.

[0082] Furthermore, in the above technical solution, the specific steps for processing the standard sections and connecting sections of the vertical shaft duct include:

[0083] The first step is to process the standard section, which is an external flange duct, according to the dimensions determined by the BIM model of the vertical shaft duct.

[0084] The second step is to process the connecting section. The connecting section consists of C-type internal and external flange connecting duct and internal and external flange connecting duct. The internal and external flange connecting ducts are processed according to the dimensions determined by the BIM model of the vertical shaft duct. The two ends are respectively equipped with internal flange and external flange for fixing the connecting section.

[0085] The third step is to assemble the standard section and the connecting section, and connect the connecting section to the standard section.

[0086] Furthermore, in the above technical solution, the processing of the C-type internal and external flange connection section duct specifically includes:

[0087] The first step, when cutting the C-type inner and outer flange connection section of the duct, the cutting length L can be referenced as: L=A+2*B+2*D(mm);

[0088] In the formula: L = width of the vertical shaft duct cutting material, mm;

[0089] A = Length of the vertical shaft duct, mm;

[0090] B = Width of the vertical shaft duct, mm;

[0091] D = C-type internal and external flange connection section of the duct reserved flange, mm;

[0092] The second step is to install two angle steels on the inside opening side of the C-type inner and outer flange connection section of the duct, and connect the inner flange and outer flange of the C-type inner and outer flange connection section of the duct. On the inside of the outer flange opening, weld a 50*5 steel strip and weld nuts to the angle steel and steel plate for connecting the plug plate to the C-type inner and outer flange connection section of the duct.

[0093] The third step is to process the flange frame and the blockage plate according to the design dimensions, and select appropriate gaskets according to the function of the C-type inner and outer flange connection section of the duct, and fix them on the blockage plate.

[0094] Furthermore, in the above technical solution, the specific steps for installing the vertical shaft duct include:

[0095] The first step is to install the inner ductwork. According to the BIM model of the vertical shaft ductwork, each standard section of the vertical shaft ductwork is installed. The construction is carried out using the direct installation method. The hoisting equipment is set up at the top of the vertical shaft. After each standard section of the vertical shaft ductwork is installed, the interface position is adjusted. The inner and outer flanges of the connecting section are fixed by positioning bolts to fix the standard section and the connecting section, thus completing the installation of the inner ductwork.

[0096] The second step is to install the outer ductwork.

[0097] Furthermore, in the above technical solution, the specific steps for installing a stability detection system on the vertical shaft duct to monitor the stability of the vertical shaft duct in real time include:

[0098] The first step is to set up several data acquisition stations on the support of the vertical shaft duct. The data acquisition stations are evenly distributed in a grid. Each data acquisition station includes a detector, a data acquisition instrument, a data transmission device at the acquisition end, and a data processing terminal.

[0099] The second step is to set the initial parameters of the data acquisition station, monitor the safety and stability of the vertical shaft duct in real time, and record the data.

[0100] The third step involves the detector detecting the fluctuation signal of the vertical shaft duct in real time and transmitting the data to the data acquisition instrument. The data acquisition instrument digitizes the data and stores it on its disk. Simultaneously, the acquired signal is amplified and power matched before being transmitted to the data processing terminal via the acquisition terminal data transmission device. The data processing terminal performs simple logical processing and classification on the data before transmitting it to the computer workstation via a router.

[0101] Fourth, the computer workstation's processing unit uses software to control the system area of ​​the array disk, extracts data from the original data storage area, analyzes it, and generates monitoring results. The monitoring results are then transmitted to the security center via a mobile network, and instructions are given based on the results.

[0102] The system comprises three components: a data acquisition unit (DAU) for digitizing and storing signals acquired by the detector, a data acquisition terminal for transmitting data stored in the DAU to a data processing terminal for processing and analyzing the acquired data, and a data acquisition station for powering the detector, DAU, and data transmission equipment via solar panels. The solar panels consist of multiple polycrystalline photovoltaic cells with a maximum power of 120W and adjustable output voltages of 12V and 24V. The detector is a three-component detector with a three-channel accelerometer, a sensitivity of 250V / m / s, a dynamic range of 110dB, and a sampling frequency that can be set to 200Hz or 500Hz, with a bandwidth of 0.03Hz-100Hz. The data transmission equipment includes a local area network (LAN) bridge with a directional antenna (butterfly antenna) for a maximum communication distance of 1000m, a 5GHz communication frequency, an antenna gain of 30dBi, a maximum power consumption of 50W, and uses the 802.11ac communication protocol.

[0103] Furthermore, in the above technical solution, the processing unit of the computer workstation, through software control of the system area of ​​the array disk, extracts data from the original data storage area, analyzes it, and generates monitoring result information. The monitoring result information is transmitted to the security center via a mobile network, and the specific steps for issuing instructions based on the results include:

[0104] The first step involves the computer workstation's processing unit acquiring micro-vibration wavelengths and stability results, establishing a stability neural network model, denoising and analyzing the acquired micro-vibration wavelengths to identify the signal waveform, and analyzing the amplitude and phase characteristics of the effective signal. The acquired wavelength amplitude, phase, and time difference are input for training, and the slope stability results are used as the training output. The measured data are then input into the neural network model to obtain the stability results.

[0105] The second step is to determine the location of instability based on the stable structure, and to use the wavelength amplitude, phase, and time difference to calculate the spatial location of the unstable area at the bottom of the vertical shaft duct, the rock initiation time, and the fracturing energy.

[0106] The third step is to use the above stability results, along with the regional spatial location and rupture energy of the vertical shaft duct, to determine the safety factor of the vertical shaft duct through the convergence of the long short-term memory model RD-LSTM.

[0107] The fourth step involves iteratively training different historical training samples, assigning different weight factors to the training data, and adjusting the RD-LSTM model and weight coefficients to achieve error convergence.

[0108] The safety factor is represented by F. A safety factor F ≤ 1.00 is considered unstable, a safety factor 1.00 ≤ F ≤ 1.05 is considered understability, a safety factor 1.05 ≤ F ≤ 1.2 is considered basically stable, and F ≥ 1.2 is considered stable.

[0109] Furthermore, in the above technical solution, the specific steps for constructing a BIM model of the vertical shaft duct using OpenBuildlings Designer software based on the construction drawings and the installation location and dimensional data of the vertical shaft duct include:

[0110] The first step is to determine the scope of modeling and the modeling parameters based on the construction drawings and installation location of the vertical shaft ducts, and to archive and organize the data information.

[0111] The second step is to input the data information into the OpenBuildlings Designer software to generate a three-dimensional BIM model of the vertical shaft duct.

[0112] The third step is to add construction information based on the BIM model of the vertical shaft duct according to the construction requirements. The construction information includes the main components, construction procedures, time schedule and material information.

[0113] The fourth step involves using OpenBuildlings Designer software to analyze and calculate construction information, obtaining data on collision detection, material usage calculation, cost estimation, and construction performance analysis.

[0114] The fifth step is to optimize the BIM model of the vertical shaft ductwork.

[0115] Furthermore, in the above technical solution, the specific steps for light leakage detection after the installation of the vertical shaft duct are completed are as follows:

[0116] After shutting down the fan, empty the vertical shaft duct and use a laser light or infrared scanner to continuously adjust the angle to detect light leakage inside the vertical shaft duct.

[0117] Furthermore, in the above technical solution, the specific steps for installing the first-floor support at the bottom of the vertical shaft duct are as follows:

[0118] The BIM model of the vertical shaft duct has a first-level support installed at the bottom of the vertical shaft duct to achieve uniform load; the first-level support is a load-bearing support.

[0119] Specifically, the principle of this invention is as follows: Preliminary preparation involves constructing a BIM model of the vertical shaft ductwork; performing hydraulic calculations based on the location and dimensions of the installation supports for the vertical shaft ductwork; standardizing the dimensions of the installation supports in one direction; optimizing the BIM model of the vertical shaft ductwork; dividing the BIM model of the vertical shaft ductwork into standard sections and connecting sections according to the characteristics of each floor; determining the location of the installation supports for the vertical shaft ductwork and fixing them; processing the standard sections and connecting sections of the vertical shaft ductwork; installing a first-floor support at the bottom of the vertical shaft ductwork to support the entire ductwork; installing the vertical shaft ductwork; installing a stability detection system on the vertical shaft ductwork to monitor its stability in real time; and performing light leakage detection after the installation of the vertical shaft ductwork is completed.

[0120] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method of installing a super high-rise common structure shaft duct, characterized by, It comprises the following steps: S10: preliminary preparation; the preliminary preparation comprises collecting the installation position and size data of the shaft air duct, and preliminarily arranging the position of the air duct branch according to the direction of the air duct branch; S20: constructing a BIM model of the shaft air duct; using OpenBuildlings Designer software to construct a BIM model of the shaft air duct according to the construction drawing of the shaft air duct and the installation position and size data of the shaft air duct; S30: optimizing the BIM model of the shaft air duct; according to the installation support position and size of the shaft air duct, hydraulic calculation is performed, the size of the installation support of the shaft air duct in one direction is unified, and the BIM model of the shaft air duct is optimized; S40: segmenting the BIM model of the shaft air duct; According to the floor characteristics, the BIM model of the shaft air duct is divided into standard sections and connecting sections; S50: determining the installation support position of the shaft air duct and fixing it; S60: processing the standard sections and connecting sections of the shaft air duct respectively; S70: installing the first layer support at the bottom of the shaft air duct for supporting the entire shaft air duct; and installing the shaft air duct; S80: installing a stability detection system; installing the stability detection system on the shaft air duct for real-time monitoring of the stability of the shaft air duct; S90: test detection; after the installation and construction of the shaft air duct are completed, light leakage detection is performed; The specific steps of determining the installation support position of the shaft air duct and fixing it comprise: First step, according to the number and relative position of the shaft air duct, the setting mode of the installation support of the shaft air duct is determined; Second step, according to the position of the shaft air duct, the position of the installation support of the shaft air duct is determined, at a position above 4m from the ground, load-bearing supports and limiting supports need to be set at intervals for the shaft air duct to strengthen the support of the shaft air duct, the load-bearing supports are set at the connecting position of the shaft air duct, and the limiting supports are set outside the shaft and fixed by a hoop; The specific steps of processing the standard sections and connecting sections of the shaft air duct respectively comprise: First step, processing the standard sections, the standard sections are outer flange air ducts, which are processed according to the size determined by the BIM model of the shaft air duct; Second step, processing the connecting sections, the connecting sections are C-shaped inner and outer flange connecting section air ducts, which are processed according to the size determined by the BIM model of the shaft air duct, and each end is provided with an inner flange and an outer flange for fixing the connecting sections; Third step, assembling the standard sections and the connecting sections, connecting the connecting sections on the standard sections respectively; The processing process of the C-shaped inner and outer flange connecting section air duct specifically comprises: First step, when the C-shaped inner and outer flange connecting section air duct is cut, the cutting length L can refer to: L=A+2*B+2*D; In the formula: L=the width of the shaft air duct cutting, mm; A = length of the shaft duct, mm; B = width of the shaft duct, mm; D = flange of the C-shaped inner and outer flange connecting section duct, mm; Second step, two angle steels are arranged on the inside opening side of the C-shaped inner and outer flange connecting section duct to connect the inner flange and the outer flange of the C-shaped inner and outer flange connecting section duct, a 50*5 steel strip is welded on the inside opening side of the outer flange, and nuts are welded on the angle steels and the steel plate for connecting the blocking plate and the C-shaped inner and outer flange connecting section duct; Third step, the flange frame and the blocking plate of the blocking plate are processed according to the design size, and appropriate gaskets are selected according to the function of the C-shaped inner and outer flange connecting section duct and fixed on the blocking plate.

2. The method of claim 1, wherein, The specific steps of installing the shaft duct include: First step, install the inside duct; according to the position divided by the BIM model of the shaft duct, install each section of the shaft duct standard section, adopt the forward method for construction, set the hoisting equipment at the top of the shaft, adjust the interface position after installing each section of the shaft duct standard section, fix and connect the inner and outer flanges of the connecting section by positioning bolts, fix the standard section and the connecting section, and complete the installation of the inside duct; Second step, install the outside duct.

3. The method of claim 2, wherein the method further comprises: The specific steps of constructing the BIM model of the shaft duct by OpenBuildlings Designer software according to the construction drawing of the shaft duct and the installation position and size data of the shaft duct include: First step, determine the modeling range and parameters according to the construction drawing of the shaft duct and the installation position of the shaft duct, and archive and organize the data information; Second step, input the data information into the OpenBuildlings Designer software to generate a three-dimensional BIM model of the shaft duct; Third step, according to the construction requirements, add construction information to the BIM model of the shaft duct, and the construction information includes main components, construction procedures, time plan and material information; Fourth step, analyze and calculate the construction information by OpenBuildlings Designer software to obtain collision detection, material consumption calculation, cost estimation and construction performance analysis data; Fifth step, optimize the BIM model of the shaft duct.

4. The method of claim 3, wherein the method further comprises: The specific steps of detecting light leakage after the installation and construction of the shaft duct are completed are as follows: After the fan is turned off, the shaft duct is emptied, and the angle is adjusted constantly by using a laser lamp or an infrared scanner to detect light leakage in the shaft duct.

Images