Today, we will discuss the applications of BIM in construction. BIM has been utilized in China for over a decade, evolving from basic 3D modeling to advanced nD model demonstrations. It has even integrated with cutting-edge technologies such as cloud computing and VR, gaining widespread recognition. However, many newcomers, especially frontline construction workers, may still be unfamiliar with BIM. This article aims to provide a clear overview of its practical uses.
Proposal of Construction Planning Scheme
Construction projects involve multiple disciplines, making effective communication essential. BIM’s 3D visualization capabilities create a shared platform where engineers’ proposals are easy to understand. This helps all stakeholders grasp the planning scheme quickly, reducing communication time and minimizing misunderstandings. During the bidding and technical briefing stages, 3D BIM perspectives can effectively showcase the construction company’s plan. This not only demonstrates the company’s pre-planning and mapping capabilities to the client but also reassures them that the project will be completed on schedule and with quality. This is a key advantage of using BIM over traditional methods.
Construction Drawing Output
Even experienced CAD engineers often find producing construction drawings challenging due to factors like height differences, gentle slopes, excessive elevation at turns, net height and width reviews, beam elevations, and conflicts with intercepting ditches. Creating sectional construction drawings from 2D plans for formwork manufacturers can also be complex. BIM tools simplify this process by enabling easy generation of sectional drawings. Introducing BIM during construction benefits companies by improving feasibility checks, coordination of construction interfaces, planning, elevation verification, and enabling direct production of construction drawings.
Construction Interface and Final Review
Design drawings typically focus on detailed sections of specific spaces, but construction requires a comprehensive view of the entire building. As a result, many critical details may be omitted in architectural designs. To ensure smooth project progress, additional detailed drawings must be created during construction and submitted for review by the owner or architect. For example, a BIM model can reveal that the steel joint connecting to an outdoor steel staircase is hinged. When planning the staircase platform, the concrete edge plate design accounted for this hinge, ensuring space for steel structure rotation under bending moments without compromising the original structural integrity—even after concrete pouring.
Construction Review
The greatest strength of BIM lies in its ability to address three-dimensional challenges, especially elevation differences at the foundation. Since the model contains elevation data, issues like floor level discrepancies, atrium landscape tree pits, swimming pools, and the connection between the base and surrounding roads can be detected and resolved easily within the BIM environment. Traditional 2D drawing reviews are time-consuming and prone to missing such issues, highlighting BIM’s clear advantages in construction review.
Construction Quantity Control
For site engineers, traditional quantity calculations are often time-intensive and may lack accuracy, making verification difficult. Owners frequently require calculation formulas for confirmation. BIM streamlines this process: once structural components, material locations, and calculation formulas are verified, the computer automatically calculates quantities directly from the model. This eliminates tedious manual verification, significantly improving accuracy and efficiency in quantity management.
Construction Quality Control
After completing the BIM construction model, contractors must follow it closely during construction. To ensure site work aligns with the BIM model, engineers can use tablet computers to access the model in the cloud for real-time comparison. On-site measurements verify compliance with the model’s specifications, and digital photos can be taken for quality checks. This digital approach enhances construction quality control and accountability.
That concludes our overview of the applications of BIM in construction. I hope this article provides useful insights. Although BIM’s adoption in China is still developing and professional expertise remains limited, strong support from national and local governments promises that BIM will play a vital role in advancing industrialization across the country.
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