Problem Statement: A project is using LOD 350 BIM models from the structural, mechanical, and plumbing disciplines. The general contractor runs a clash detection in Navisworks. A 300mm diameter HVAC duct is found to intersect a W12x26 steel floor beam. How should this clash be resolved?

Problem Statement: A contractor links their Primavera P6 schedule to a 3D Revit model, creating a 4D simulation of a high-rise concrete pour sequence. The simulation shows the core walls reaching level 10 while the floor slabs are only at level 5. A safety review notes that this creates a 5-story unsupported, free-standing core wall. Is this acceptable?

Problem Statement: An estimator uses a BIM model (LOD 400) to extract quantities for a 200mm thick interior masonry partition wall. The model reports a gross surface area of 1,000 $m^2$. The wall contains ten identical $1m \times 2.1m$ door openings. However, the estimator manually verifies the model and finds the doors were modeled merely as "surface patterns" rather than actual voids cutting through the wall geometry. What is the true net area of masonry required?