Figure 1bim digital coordination and management platform is built.
Integrated application of BIM 1.1bim + n innovation mode the project team relies on the innovative BIM + N management mode of the enterprise, that is, the combination of BIM with design, cost, supervision and even the whole process consultation.
3).
Fig.
(4) Through 4D progress simulation, the output value of the progress plan is integrated with the model to more efficiently carry out progress analysis, control and progress display.
Through model lightweight and platform function development, the basic process frame covering the coordination and management of all participating units in the project construction process is established in strict accordance with the current industry specifications, standards and other relevant requirements The rack is associated with the BIM model to make the project BIM model on the same platform (whether PC or mobile) Realize quick, operable and applicable functions, and greatly improve the application scope in the project.
In the construction preparation stage, the team is “customized” Based on the consulting service orientation, fully consult the early needs of the owner, and rely on the mature R & D team of the enterprise to carry out the construction of BIM based digital collaborative management platform.
1.2 with the help of modern information technology, the technology integration team takes the information platform (PC + mobile terminal) as the carrier, BIM, GIS, AI and big data as the core, and uses the mode of “small front end + large background” to create a digital collaborative management platform based on the actual situation of the project.
1.3 team integration in the construction of the project team, team members take “active learning, active integration, active application and active thinking” as the theme, establish an active consciousness, take the digital development of engineering construction as their own responsibility, and establish BIM digital collaborative management platform as the core of all management work.
The value of BIM integration application (1) management value.
Through personnel integration, process integration, knowledge integration and function integration, the interaction and series of organization, role, authority, process, event, coordination, correlation and control are formed, and finally a quantifiable, comparable, evaluable, traceable and mineable database is established, Make the project management visible, searchable, manageable and coordinated anytime and anywhere (Figure 1).
(2) Through the two-dimensional code and model lightweight, carry out the construction technical disclosure of key nodes and the preview of various project templates, and promote them in the corresponding areas of the construction site, so that the front-line operators can also participate in the application of BIM Technology through routine and convenient operation (Fig.
2 supervision engineer assists in BIM based advanced drilling simulation analysis, carries out relevant systematic training for team members, and carries out post cooperation of team members within a reasonable professional and technical scope (for example, BIM post members can assist the professional supervision engineer in the preparation of supervision rules, scheme review, etc., while the professional supervision engineer can assist BIM post members in establishing the detail model of construction key nodes and demonstration model of dangerous and large projects, and carry out engineering quantity analysis and process simulation based on BIM) , improve the professional cognition of team members in their relatively unfamiliar fields, enable team members to form benign interaction, move from the traditional engineering project management team to the integrated team, and maximize the advantages and potential of BIM application (Figure 2).
(1) Through BIM + big data, the daily quality problems, safety hazards and other data are regularly sorted, analyzed and displayed, so that the management personnel of all parties involved in the construction can more intuitively and accurately effectively control all kinds of hidden dangers.
3 assists the front-line managers (3) Through the combination of UAV, VR and indoor panoramic technology and model, while the overall progress of the project is presented comprehensively and intuitively, it provides assistance for various types of acceptance in the process of project management, so as to make the concealed works more traceable.
1.4bim technology in the secondary development in the integration process.
In the process of project development, actively make use of the advantages of integrated team, delegate development authority, clarify the needs of all parties in the front-line work process of team engineering managers, regularly feed back to the team, and expand targeted application points.
As a local key livelihood project and a landmark administrative and business center, the project faces a series of challenges in the early stage of construction, such as high social attention, many participating units, complex coordination work, tight construction period and so on.
Through BIM based integration application, up to now, the project team has prepared 6 standard system management systems and obtained more than 300g BIM process data (the model accounts for 60%) , the collaborative management platform has developed 16 process types, logged in more than 50000 times, initiated more than 3000 online processes, and gradually formed a set of standard management system based on BIM whole process integrated application + project supervision, so as to achieve the objectives of full data integration, full visibility of status, full manageability of business and full control of events of all parties involved in the project management and construction stage (2) economic value.
Through the integration and expansion of BIM application points and the efficient use of BIM collaborative management platform, up to now, the total cost has been saved by 6 million yuan and the construction period has been saved by 106 days..
Fig.
Scaffolding Ringlock System Ledger End 
According to the needs of the owner, taking BIM Technology as the core, the project team explored and applied the BIM whole process integrated application + project supervision mode in the field of Construction Engineering in Chongqing for the first time, making use of the visibility and The characteristics of simulation, coordination, optimization and drawing ability are organically combined with the “three management, three control and one coordination” of engineering supervision to enable project management.
Adhering to the concept of “intelligent construction”, the owner actively adopts BIM Technology in order to explore and solve the difficulties and pain points in the construction of traditional engineering projects, enable engineering construction with science and technology, and realize the vision of “intelligent construction and intelligent management”.
The overall planned construction land area of a project located in Chongqing is about 30000 M ²， The total construction area is about 100000 M ²， It is a comprehensive building composed of high-rise, podium, garage and other ancillary facilities, integrating multi-functional and multi business forms such as administrative service center and business office.
In the process of project management, explore and solve the problems such as single management mode, low management efficiency, difficult coordination of multiple units and disciplines, and chaotic information of all participating units and managers under the influence of the traditional management mode, so as to closely connect all parties involved in the construction and carry out work around the same platform.
