An engineering supervisor talks about BIM application technology
[Abstract] Today BIM has become a ubiquitous hot word in the field of architecture, and the scope of application of BIM technology has become wider. In order to help everyone better understand the application of BIM in the industry, I compiled and shared "BIM | BIM Application" for reference. For more information about BIM, please stay tuned to the Global School BIM Channel.
1. Investment control
After BIM technology is used to complete the project valuation and completion settlement of the cost organization and construction unit, electronic data with BIM parameters is formed, and the accumulation and sharing of historical project data and market information is finally formed. Based on the establishment of the BIM data model, the combination BIM software functions such as visualization technology and simulation construction provide a basis for the project's simulation decision-making. During the project investment decision-making stage, the supervisor can call the cost data of similar projects to the proposed project based on the BIM model data, such as people and materials in the area. , Machine prices, etc., can also output the cost of completed similar projects per square meter, efficient and accurate estimation of the total investment of the planned project, to provide accurate data for investment decisions. It helps the supervisor to assist the owner in preparing the feasibility analysis report in the early stage of construction, form the investment estimate and determine the high-quality final estimated price.
In the investment decision-making stage, it is possible to accurately and reasonably select the construction area and construction site, scientifically determine the level of construction standards and select appropriate process equipment, and perform a notarized evaluation of the completeness and accuracy of the review of investment estimates. Before the project is outsourced, it can help the construction unit to do the bidding work more scientifically, determine the formation of the project price, and purchase the materials and equipment to ensure the quality of the project and effectively reduce the project cost.
As we all know, design determines more than 70% of the construction cost. The modern supervision management system needs to strengthen the early investment control, obtain the maximum output with the least input during the design stage, adopt the design method of limit design and the use of value, and actively influence the design. And strict control of engineering changes is an important part of cost control. Engineering changes have always been the center of investment control. Many construction units use the owner ’s lack of understanding of the changed part to increase the cost of the project, causing large losses to the investor and some decorative construction. The price quoted by the unit at the time of bidding is made of ordinary materials. During the construction, the owner is required to replace the materials not in the contract and the list, and a new price that is very favorable to the constructor is used again, causing huge losses to the owner.
The supervisor needs to focus on reviewing the change plan and strictly abide by the principle of changing prices in order to ensure effective control of the investment. Therefore, the supervisor can design the project's CAD drawings and the project components in the design drawings and the accumulated cost of the BIM database. The information is related, and the relevant cost information can be output according to the time dimension and any branch and subproject, which is convenient for reducing the project cost in the design stage and achieving the goal of limit design.
In the design submission and drawing review stage after the general contractor is determined, the traditional drawing review is based on two-dimensional plan drawings, and each professional drawing is designed separately. It is difficult to find problems only by human inspection. With the introduction of BIM, all majors can be integrated into a unified BIM platform. Supervisors can review drawings from different perspectives, and use BIM's visual simulation capabilities to perform 3D, 4D, and even 5D simulation collision checks that are impractical and reduce design. The number of errors, or rework costs due to misunderstandings, has greatly reduced engineering changes and possible disputes.
Regarding construction supervision, strict project measurement, and control of project payment and project settlement and final accounts. Supervisors can use the 4D construction simulation process to display detailed information about the current amount of construction and construction status. Based on the BIM processing center, BIM related software can be used to quickly and accurately compare multiple calculations. In addition, the components of the BIM-3D model can be compared. Perform unified coding and assign information such as pre-processing, time, and space. With the support of the database, the statistics, splitting, and analysis of 4D and 5D arbitrary conditions can be achieved in the least time. According to engineering calculations and pricing related standards, specifications, and models The project quantity and list information of each component in the system automatically calculates the resources, costs, and other personnel, materials, and machinery required by each component, and summarizes the calculations. Through the application of BIM technology, the supervisor can do a good job of auditing the project measurement in time and effectively prevent the project. Overpayment of progress payment and improvement of settlement and final account accuracy, reasonable calculation of expense standards, and accurate reflection of project cost.
2.Quality and schedule control
One of the supervision's quality control requirements is to prevent quality beforehand, so it should be based on relevant information such as drawing specifications, standards, changes, and documents. As for the progress, it is even more complicated due to various factors, including the participation of the parties involved in the construction. Progress has always been a headache, and a hundred-fold effort is often not very effective.
Through the research and application of BIM technology, a simulated collision check in three dimensions can be performed. This not only completely eliminates collisions in the design stage, but also optimizes the headroom and contradictions between components and pipeline layout schemes, reducing collisions between components and equipment pipelines. Disassembly, rework, and waste caused by waiting, avoiding human errors and inefficiencies that were not found during the conference review using traditional two-dimensional design drawings.
According to BIM, in the integrated digital environment, the above information is used to keep it up-to-date and easy to access, so that supervision engineers, architects, builders, and owners can understand their project as a whole, so that supervision can make informed decisions more quickly and improve Construction quality and efficiency, and then use BIM technology to simulate important construction processes and processes in the construction plan, find problems and take preventive measures to avoid construction delays caused by delays, improve construction efficiency, and other aspects to ensure construction quality and safety. Supervision can integrate with the collaborative construction management platform by using the construction quality and safety monitoring subsystem, combining P-BIM model, Internet technology, and on-site video. By monitoring the stress and deformation of key parts at key construction stages, the construction site can be identified in advance Dangerous sources, prevent problems before they occur.
On the basis of three-dimensional BIM, if the supervisor sets the time dimension for the constituent elements of the BIM model, the four-dimensional (4D) application of BIM can be realized. By establishing a 4D construction information model, the 3D model of the building and its construction site is connected to the construction schedule and integrated with the construction resources and site layout information to achieve day, week, and month as time units and different time intervals. 4D simulation of the process or reverse sequence of the construction progress, the image reflects the construction plan and actual progress. For example, you can simulate the actual construction process according to the construction plan of the project, review the possible problems and risks in the construction process in a virtual environment, and at the same time, you can adjust and modify the model and plan according to the problem, and repeatedly simulate inspection and adjustment. Continuously optimize the construction planning process. This technology software can better complete the progress control to a certain extent.
3.Information, contract management and coordination of all parties
Due to the large number of participating units in the entire life cycle of a large public construction project, it is a long process to receive and use it after planning and design, engineering construction, and completion inspection. Long, resulting in the unavoidable loss of some information and increasing the cost of the project. Supervisors can use BIM technology to highly integrate all relevant information in each stage of the construction life cycle to ensure that the information in the previous stage can be transmitted. To various stages in the future, so that all parties to the construction can obtain the corresponding data.
With regard to contract management, from planning, design to construction, the supervision through the application of BIM technology effectively guarantees the transmission of project investment, quality, schedule and all relevant information in each stage. During the construction stage, all parties in the construction can use this as a platform, Data sharing, work coordination, collision inspection, and cost management have also been continuously exerted, which greatly reduces contract disputes and claims.
Supervisors can use BIM technology to organize various building information into a whole and run through the entire building life cycle process, so that all parties in the construction can manage in time to achieve the purpose of collaborative design, collaborative management, and collaborative communication, plus The advantages of BIM can help improve the ability of multi-disciplinary coordination in the preparation of structural design documents, minimize errors, and strengthen the cooperation between the engineering team and the construction team, greatly reducing the coordination of supervision during the entire construction process. Volume and coordination difficulty.
The above content is the reference content of "BIM | BIM Application" compiled by the Global Network School BIM Channel for you, I hope to help you. Technology is the first productivity, master a new technology, and start a new journey in life! For more information, please pay attention to the Global School. ”按钮，可免费领取BIM学习资料。 At the same time, click the " Free Download " button below to receive BIM study materials for free.
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