The construction cost process involves multiple stages, extending beyond the actual construction phase to include early investment decision-making and cost control during the bidding phase. Effective cost management at any of these stages significantly influences the overall cost control of the entire construction project.
Unreasonable or unscientific decisions at any stage can create conflicts between investment and fund control, ultimately leading to uncontrolled construction costs. For instance, changes in construction plans often impact project expenses. One challenge lies in gaps within information management, where data collection and handling are neither comprehensive nor accurate, hindering seamless integration between information gathering and project cost management.
Addressing these issues is crucial for ensuring scientific and rational cost decision-making. Building Information Modeling (BIM) technology enables lifecycle management of construction projects, effectively overcoming these challenges. BIM provides precise engineering quantity data that supports cost estimation during early design, exploration of various design options within budget, comparison of construction costs across different schemes, as well as quantity budgeting before construction and settlement after completion.
1. Design Phase: This phase involves detailed planning of the entire construction process, aiming to minimize costs and maintain control over expenses. Selecting the right design scheme is essential to effective cost management. Decisions such as choosing the construction site and project layout must focus on the optimal solution, often incorporating advanced technology and economical design principles.
2. Engineering Bidding: The bidding process plays a vital role in cost management by ensuring that the project is executed with the best combination of technology, quality, price, and timeline. It also allows the selection of construction units based on the most optimal proposals.
BIM can be applied throughout all stages—from early bidding, project planning, and scheme evaluation to design and ongoing cost control. It enables project investors to easily and cost-effectively evaluate different schemes. Construction companies can optimize their approaches through BIM, gaining accurate engineering quantity data essential for cost control. This integration not only reduces overall project expenses and optimizes resource allocation but also allows owners to quickly assess the cost and duration of investment options. Additionally, it minimizes manual tasks and potential errors for construction teams, ensuring complete alignment between engineering quantities and design schemes.
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