1 BIM technology overview 1. 1 BIM technology meaning BIM is the abbreviation of English BuildingInformationModel, which refers to the building information model and is one of the three-dimensional virtual digital technologies. This technology can penetrate into the whole life cycle of the project, and can carry out efficient information management in project planning, design, construction and maintenance. BIM technology was first put forward by American construction industry, but so far, the theoretical and practical circles have not reached a unified view on the definition of BIM technology. Usually, people regard BIM technology as a computer digital model. With the help of the advantages of computer technology and information technology, introducing this model into construction project management can realize the automation and intelligence of project management, save costs, improve project quality and realize the development of green building enterprises. 1.2 characteristics of BIM technology 1.2. 1BIM technology has the characteristics of visualization. With the help of BIM model, buildings can be displayed intuitively, and relevant staff can grasp the characteristics and structure of buildings more accurately, so as to better carry out project construction. In the past construction, the staff all carried out the construction work through plane drawings. Although the floor plan can play a guiding role, it is difficult to show the three-dimensional effect of the building, and it is easy for the staff to ignore some important features of the building. With the application of BIM technology, buildings can be displayed in front of staff in a more vivid three-dimensional and four-dimensional way, and staff can understand the characteristics of buildings more accurately and comprehensively. The visualization characteristics of BIM technology are not only reflected in the construction stage and design stage, but also in the subsequent operation of the project. 1.2.2BIM technology has synergistic effect. The construction of engineering projects often involves multiple participants, such as the construction unit, supervision unit, design unit and construction unit. And it also involves many government departments, such as supervision departments and construction departments. In order to promote the steady progress of the project, it is necessary to provide project information to these units and departments in time to realize the sharing of information resources. This is also the premise of effective communication between units and departments. BIM technology is synergistic, which can timely summarize the suggestions of all participants, so that relevant subjects can obtain more comprehensive information such as technical parameters and project progress. 1.2.3BIM technology is analog. BIM technology can build a model for a building and conduct on-site simulation. For example, in the process of project design, BIM technology can be used to simulate various departments of project design, such as energy saving, heat conduction, lighting, emergency, etc., so that designers can find shortcomings in time and optimize the design scheme. In the project construction stage, BIM technology can simulate the construction process, so as to predict the construction effect, and then improve and adjust the construction scheme. The unique simulation of BIM technology can help project managers to obtain more project scheme data and help them choose the most reasonable project scheme. In addition, by simulating the construction process, relevant subjects can know the shortcomings in the construction process in time, thus effectively managing the project schedule and project cost and improving the economic benefits of the project. Application of 2 2 BIM technology in project management In the past, the main problems faced by project management were: paper design drawings increased the difficulty of construction; Poor information transmission, lack of communication between the parties involved and lack of synergy; The calculation of engineering quantity is not accurate enough, which leads to the inaccurate project cost. If these problems cannot be properly handled, it will definitely affect the quality level and economic benefits of the project. Introducing BIM technology into project management can effectively solve these problems. BIM technology can effectively integrate the information and data of the whole project life cycle, realize the sharing of information resources, and make all participants work together. The project management system integrating BIM technology has multiple advantages, which can realize the three-dimensional simulation demonstration of buildings and generate three-dimensional animation according to the actual work needs, so that relevant staff can have a deeper understanding of the project construction management process.
There are many dynamic databases in the system. Construction designers can establish databases according to the actual situation of the project, calculate the engineering quantity more accurately, further manage the budget and control the project cost. Project managers can obtain more accurate project information from the system, reduce the loss caused by subjective experience, and enable the construction party to formulate more scientific resource management plans based on system information, improve resource utilization efficiency and reduce waste. In detail, the functions of BIM technology in project management are as follows: first, the BIM central database can realize information sharing and let all participants work together. Under the function of BIM central database, all kinds of complex project information can be displayed in the form of data, which will be updated continuously with the progress of the project. All participants can get these data in time, so as to better participate in the project construction. This can solve the construction inconvenience caused by paper drawings, make the project cost more accurate and improve the project cost control level.
Participants can fully communicate on the information sharing platform and get the required information in time, so as to better carry out collaborative work. Secondly, integrating BIM technology into project management can realize the dynamic control of the project. The project management mode based on BIM technology can not only improve the coordination in the design process, but also simulate the management in the construction process, including schedule, quality and cost. This project management mode can dynamically control the whole process of the project, thus improving the efficiency of project design, construction and management, ensuring the smooth completion of the project with good quality and quantity, and thus obtaining more economic benefits. Thirdly, the project management mode based on BIM technology has the characteristics of self-improvement. With the steady progress of project construction, there will be more and more project information.
3 Strategies for Effective Application of BIM Technology in Project Management 3. 1 To build a data management platform based on BIM technology in modern project management, all kinds of information should be quickly transmitted among relevant participants, so that all participants can work together and participate in project decision-making, which improves the rationality and scientificity of project decision-making. All these require the introduction of BIM technology in project management and the establishment of a data management platform for * * *. The platform should support all participants to share information at all stages of project planning, decision-making, construction and operation. 3.2 Establish an evaluation mechanism for the application of BIM technology. In project management, the application effect of BIM technology directly affects the decision-making of all parties involved, and also has a certain impact on the benefit of the whole project. Therefore, it is necessary to evaluate the application of BIM technology in all aspects of the project in time. In this process: firstly, the application requirements and data delivery standards of this technology in each link should be clarified; Second, the specific responsibilities of BIM service providers should be clarified; The third is to construct a perfect application evaluation in time and make a comparative study on the input and output of BIM technology; Fourthly, according to the evaluation results, adjust and optimize the application of BIM technology in time. 3.3 Strengthening the whole process management In order to improve the application effect of BIM technology, we should start with the whole process management of the project, comprehensively control the project quality, schedule and cost, ensure that the project can be completed on time, and the project quality can meet the design standards, so that the project can generate more economic benefits. Under the application of BIM technology, the project construction unit should do a good job in the management of bidding, project change, project completion, project settlement and other aspects, so as to provide the owner with a more scientific operation plan, thus generating higher economic and social benefits in the subsequent operation of the project. Conclusion In fact, in project management, BIM technology is not only a tool, but also an advanced management concept. With the application of BIM technology, many problems in traditional project management have been solved, and the effectiveness of project management has been significantly improved. In view of this, the project construction unit should further improve the application level of BIM technology, build a data sharing platform based on BIM technology, and improve the cooperation degree of all parties involved; Establish a perfect BIM technology application evaluation mechanism, summarize the problems existing in BIM technology application in time and solve them; Do a good job in the whole process management, control the quality, progress and cost of the project, and make the project output more benefits.
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