C&D Chang'anli Residential Project in Wuxi ,China

Project Location: Northwest of the intersection of Huijing Road and Huahui Road, Huishan District, Wuxi, Jiangsu Province, China

Areas Utilizing BIM: Basement Levels and all Above-Ground Levels

Magnitude of the Project:
Total site area: 33,632.70 m² (approx. 362019 sq ft)
Total floor area: 116,505.98 m² (approx. 1254059 sq ft)
Above-ground floor area: 88,760.79 m² (approx. 955413 sq ft）
Basement floor area: 27,745.19 m² (approx. 298647 sq ft)

Applications of BIM: Bimodeling leverages BIM design to resolve clashes between MEP systems, as well as conflicts between MEP and architectural structures, while also addressing design inefficiencies. The team conducts dedicated checks for key components-such as roller shutters, blast doors, sump pits, and staircases—as well as focused reviews for specific zones, including ramps, entry foyers, lobbies, driveways, and parking spaces. These efforts help identify and eliminate errors, omissions, and design gaps in the drawings. At the same time, the layout of MEP systems is optimized and visually refined, enhancing the overall quality of the basement and improving user satisfaction by creating an orderly and elevated homecoming experience.

1. 3D Digital Twin Model

Unit Layout BIM Model


Full 3D Model of the Basement Levels

  After BIM-based adjustments, missing indoor fire hydrants, sump pits, and vertical piping are present in Entrance Zone 1. The clear height has been optimized to 2.6 meters (approx. 8.53 feet), meeting both spatial and aesthetic requirements.  

Dedicated Fire Protection Compliance Review

In Entrance Zone 3, fire extinguishers are placed within a 20-meter (approx. 65.62 feet) radius from the main lobby entrance, but no indoor fire hydrants are installed. Further adjustments are required to meet code compliance.

Dedicated Ramp Compliance Review
(1) Ramp beams are raised to align with the underside of the slab; the clear structural height is 3.05 m (approx. 10.01 ft), and the clear MEP height is 2.85 m (approx. 9.35 ft);
2) No structural protrusions or MEP conflicts are present within the ramp area;
(3) No major MEP trunk lines are present in the foyer area, with a clear height of 2.7 m (approx. 8.86 ft).

Dedicated Basement Levels MEP System Coordination Review
Driveway Layout Optimization: In the design phase, Bimodeling will make adjustments to key parts based on the actual situation and construction environment, such as raising beams or reducing beam height. 
The Optimized Solution: When MEP system pipelines cross beams or slabs over roadways, 90 degree elbows are used to go over beams; for ducts and cable trays, 45 degree elbows are used.

 

Parking Bay Layout Optimization:
(1) Ductwork should be installed on the outer side of grouped MEP systems, using asymmetric reducers, with the straight edge oriented away from the driveway.


(2) MEP System  pipelines  above the parking bay  should be classified by their system type and organized in a structured, coordinated layout.