BIM Q&A: How BIM Technology Helps Control Costs in Early Project Decision-Making

The application of BIM technology in cost control during the decision-making phase of engineering projects includes the following aspects:

1. Preliminary Investment Estimation: Estimating a project’s investment is a complex process influenced by many uncertain factors affecting costs. Traditional methods often lack advanced cost control and timely updates of cost data, which decreases accuracy. By utilizing BIM technology to create a detailed building information model, project quantities and component prices can be directly calculated, enabling a comprehensive estimation of the total project cost. As companies accumulate project experience, they build their own BIM enterprise databases. These databases allow for selecting investment estimates based on similar projects combined with the current project’s specifics, resulting in more accurate, reliable data and improved estimation efficiency.

2. Site Simulation Analysis: BIM technology goes beyond constructing physical building models by also creating models of construction sites and simulating environmental conditions. It can simulate factors such as lighting, wind speed, and landscape, which assist in optimizing building height, shape, and orientation. Additionally, BIM can model surrounding site conditions like traffic flow, commercial environment, and market status. These simulations provide decision-makers with a comprehensive understanding to optimize site planning and layout, avoid land waste, and reduce costs. Given the growing complexity of projects, time-related costs significantly impact total expenses; BIM’s simulation capabilities accelerate decision-making and enhance capital efficiency.

3. Scheme Selection: Choosing the right investment plan is crucial during the decision-making stage and involves multiple factors, including engineering quantities and various cost indicators. Traditionally, plan selection relied heavily on manual data collection and subjective experience, often leading to low accuracy.

With BIM-based scheme selection, historical project data from BIM databases can be leveraged to quickly calculate the costs of different options. This approach allows for a clear comparison of advantages and disadvantages of each scheme, enabling more intuitive and informed decision-making.

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