Application of BIM technology in the construction of prefabricated steel structures(II)

Third, the application of BIM technology in prefabricated buildings
(1) Application in the design phase
In the actual assembly project, BIM technology can be applied to the design stage. There are mainly the following points: First, in the assembly construction of steel structure projects, the work should be planned and planned in advance. Whether in production, design or construction, it is necessary to carry out scientific and reasonable design, processing and assembly of prefabricated components, promote the design and production of prefabricated components, and gradually develop in the direction of standardization and standardization.

In this process, BIM technology should be rationally used to use three-dimensional digital as a means of expression. At the same time, BIM technology is used to make corresponding building components, such as HVAC storage, water supply and drainage household storage. Secondly, BIM technology should not only be applied to component design, but also be combined with the corresponding parameters. The main purpose of BIM technology is to realize the separation of components, such as vertical components, horizontal components, stress-free components, etc. In the design and production process of prefabricated components, attention should be paid to the lifting of wall panel beams and columns, and the processing and transportation of components should be considered. Carefully analyze the work of the reserved holes, the embedded parts and the opening holes of the components in the installation. Third, BIM technology can also be used for collision detection. In the actual collision detection, BIM technology can make reasonable use of different professional models, so as to find the problems existing in the design, so as to communicate and communicate with the designer in time, and better solve the problems in the design. For example, in the modeling of electromechanical pipelines, the quality of pipelines should be checked in time to avoid errors and leaks. This can avoid design changes to a certain extent, thus ensuring design quality. There are two main ways to apply BIM technology to collision detection: one is to directly modify the parameters of the collision point. The method is intuitive, targeted and efficient. However, this method is not suitable for multiple collision detection. Secondly, parameter modification in BIM family library can modify the component family, so that the component family can be updated and improved in time. In the actual collision point detection, the effective detection method should be taken according to the actual situation to improve the detection quality and detection efficiency. Fourth, the chip that supports wireless reading and writing is embedded in the production of assembling building components, the component number, position, size, reinforcement, date, quality, production workshop and other relevant information is written into the chip, and then the mold, spray release agent, binding steel cage, fixed embedded parts, concrete fabric, shaking table vibration, maintenance and release can be installed. On this basis, the quality inspection personnel read the chip parameters with the handheld end to ensure the consistency of the component entity and parameters, and determine whether the production quality meets the requirements; After confirming the qualification, the result is written into the chip and stored in the library, which is verified and saved by the library administrator; Check the ID card and enter the transportation information before loading; After arriving at the construction site, scan and verify the ID card and enter the site inspection information; Check the installation information of the related components again. Through the above processes and methods, the introduction of BIM technology into the embedded chip can meet the traceability of the whole process of installation and construction of prefabricated components, and achieve the purpose of improving construction quality, work efficiency and cost control.
(2) The application in the field installation construction stage
BIM technology can not only be applied in the building design stage, but also in the field installation and construction stage. In the actual construction work, we should pay attention to the following issues: First, based on BIM technology can realize the simulation of key processes during construction to select the best process plan. Taking the slurry construction technology of divided silos of prefabricated buildings as an example, the general process requires the thickness of the spacer to be 20.0cm to ensure the thickness and uniformity of the slurry, while avoiding the impact of the spacer itself on the slurry flow. Second, in the application process of BIM technology, different on-site facilities and model construction work can be carried out in an orderly manner. In the layout of the site plan, it is necessary to organically combine with the layout points and layout technology, so that the design work can be carried out safely and orderly. At the construction site, there should be an area that meets the construction standards, and both logistics channels and pedestrian channels should be designed in advance to avoid blockage. The construction site also requires staff to make scientific and reasonable planning, so BIM technology can be used to simulate the real construction situation on the site. In this process, it is necessary to strengthen the application of the visual advantages of BIM technology, simulate the situation of electromechanical pipelines in the basement, and then ensure the scientific and rational selection of electromechanical devices according to the simulation results, and ensure that the equipment parameters meet the relevant regulations. Thirdly, BIM technology is applied in the simulation of the installation and disassembly process of large equipment, so that the entire construction process can be simulated in advance, the problems existing in the construction can be found as early as possible, the problems should be analyzed and discussed in time, and the preventive measures and solution measures are given.