The application of BIM technology in cost control during the construction phase of engineering projects is outlined below:
1. Refined BIM Models
Creating a detailed BIM information model is the foundation and primary task of BIM applications during construction. Based on previous discussions about the advantages and disadvantages of various software, Revit remains the preferred modeling software in this phase. To effectively support construction and achieve cost control, the BIM model must be highly accurate, especially regarding the quantities of materials and components it represents.
Moreover, the BIM model should not be limited to a single discipline or scope. All construction-related components that generate cost data should be included within the model’s permissions to minimize omissions and better manage expenses. For example, beyond traditional civil engineering and piping models, the BIM process should incorporate steel reinforcement, embedded parts, site layout, temporary structures, infrastructure, and critical location models. In summary, a refined, comprehensive BIM model is essential for effective cost control during construction.
2. Assisted Drawing Review
Drawing review involves various project participants—such as construction teams, supervisors, and equipment manufacturers—examining the design institute’s construction drawings to identify and address issues.
Traditional drawing reviews rely mainly on 2D CAD drawings, which lack visual clarity and intuitiveness. This often leads to overlooked problems, especially clashes between different disciplines, which are difficult to detect accurately. Such issues may only surface during or after construction, resulting in design changes, significant delays, and increased costs, as well as potential risks to project quality.
Using BIM technology to assist drawing review allows the construction of 3D models that reveal problems hard to detect in traditional 2D drawings, such as interdisciplinary clashes, insufficient clearance heights, and overlapping components. This approach facilitates timely identification of issues and supports providing informed modification suggestions.
3. Construction Site Layout
Traditionally, construction site layouts are based on the experience of technical staff and 2D plan annotations. This method often causes local conflicts and overlaps, leading to rework, project delays, and higher costs. With the rise of large-scale buildings and tighter urban land availability, construction resource allocation has become more dynamic, making traditional layouts inadequate.
Applying BIM technology to site layout involves creating BIM models of site facilities, which enables dynamic arrangement of material storage areas, tower cranes, and transport routes. These models can be continuously adjusted and optimized before and during construction to select the best layout. Additionally, quantities for measures and projects can be automatically calculated and cost-estimated using budgeting software. Virtual simulations of site layouts help construction personnel better understand different zones and preparation stages, optimize construction plans, and create layout strategies that meet actual site needs. This improves efficiency and reduces unnecessary waste.
In conclusion, BIM technology offers significant advantages in helping construction companies reduce costs throughout the construction phase. We hope this article provides valuable insights for everyone interested in BIM applications!
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