(1) Improvement in Drawing and Model Management. Traditional technical management without BIM relies heavily on communication through drawings. Drawings are often referred to as the “language of engineers,” serving as the main medium for communication. Designers create two-dimensional drawings by applying their expertise and drafting standards to represent three-dimensional models. On-site engineers then interpret these flat 2D drawings, using their knowledge of specifications and standards to translate them back into 3D structures and apply their construction skills to build accordingly. These two conversions inevitably introduce errors. In contrast, with BIM, on-site engineers work directly with segmented and detailed BIM models, reducing the need for conversion between 2D and 3D formats and minimizing errors caused by these translations.
(2) Enhancement of On-site Process Communication. Traditionally, construction techniques are disclosed through written technical solutions, which can be difficult and costly for construction workers to learn. With BIM, most construction methods are demonstrated via 3D models and can be further clarified through animations and interactive programs, significantly simplifying the learning process for workers.
(3) Improvement in Building Key and Complex Project Components. In conventional approaches, construction of challenging project areas is guided by on-site technicians or experienced workers who develop detailed plans based on floor plans and drawings. Workers with extensive hands-on experience often have a better grasp of specifications and processes than project department technicians. BIM engineers, however, preemptively highlight these critical and complex areas on 3D models, ensuring higher construction quality by providing clear visual guidance before work begins.
(4) Advancement in Mechanical and Electrical Construction. In traditional mechanical and electrical construction, openings or pipelines are pre-embedded following drawings. However, during installation, issues often arise due to insufficient consideration of net installation heights—such as openings being improperly located—which leads to costly re-chiseling. Additionally, overlapping mechanical and electrical pipelines can exceed the required net height, especially when electrical technicians install cable trays after ventilation systems are in place. Resolving these conflicts typically requires dismantling and reinstalling ductwork, resulting in significant rework, increased costs, project delays, and wasted labor.
With BIM, engineers optimize mechanical and electrical pipeline layouts beforehand, ensuring net height requirements are met. They also prefabricate lifting points on the top plates. During installation, these pipelines are prefabricated off-site and assembled as complete units on the ground, then lifted into place. This approach dramatically reduces rework and streamlines the construction process.
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