Before the advent of BIM technology, designers of mechanical and electrical installation projects primarily relied on two-dimensional design methods, such as CAD software. These designs typically included three types of detailed drawings: plans, elevations, and sections, which illustrated various project details. However, this traditional approach posed significant limitations on spatial pipeline layout. Designers often struggled to fully anticipate issues like intersections and collisions arising from the arrangement of pipelines within a three-dimensional space.
The introduction of BIM technology revolutionized this process by allowing multiple professional pipelines to be integrated within a single model. The following are the fundamental principles for applying BIM technology to cost management in mechanical and electrical installation projects:
Safety Principle
In a comprehensive engineering project, BIM technology enables the construction of three-dimensional models that encompass both architectural and mechanical-electrical systems. For mechanical and electrical installations, different methods can be employed to differentiate pipelines and equipment of various disciplines during the modeling phase. Components with similar shapes and materials—such as air ducts and cable trays used for ventilation and fire protection, as well as water pipelines—can be distinguished through the use of color coding.
Once the model is complete, BIM’s unique collision detection feature performs thorough checks to identify clashes among the various professional pipelines. The resulting collision report clearly highlights the points of intersection where pipelines conflict. Designers can then adjust and revise the BIM model based on these findings. Although the updated drawings serve only as construction guidance, the BIM model facilitates a rational spatial layout of all components, minimizing potential quality and safety issues during construction.
Additionally, the BIM model retains comprehensive information across disciplines, effectively preventing data loss and enhancing project security.
Principle of Applicability
Due to differences in national regulations and conditions, many foreign cost estimation software solutions cannot be fully adopted in China. Since BIM technology development began earlier in many countries, there is an opportunity to learn from the strengths of international BIM software.
Commonly used cost estimation software in China includes Swell, Guanglian Da, and Luban. While these programs share some similar features, they also differ significantly. By drawing on each other’s strengths and weaknesses, and developing BIM-based cost software tailored to China’s specific national conditions and requirements, BIM technology can be more effectively applied to engineering cost management within the country.
Principle of Availability
Each of the mentioned software—Swell, Guanglian Da, and Luban—has unique characteristics in fulfilling cost management functions. Swell integrates graphic calculations and steel bar computations within a single interface, streamlining pricing and estimation. It also offers list guides that help beginners quickly learn the software, and features intelligent multi-method price adjustments.
Luban Cost supports reverse checking, enabling users to verify the consistency between engineering quantities and software calculation results. This process, which involves locating specific components graphically, helps avoid errors.
Guanglian Da is a standalone software that operates independently of CAD platforms. It can compare and verify bidding data and make corrections autonomously.
Each software solution has its advantages and limitations. To maximize their effectiveness, it is essential to align software use with actual project needs, enhance usability, and simplify operation for users.
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