Figure10 Demonstrates how site inspection, construction experience, an eye for detail and the use of BIM worked, preventing a serious and costly error in the construction of the central stairs in building A. This error was discovered after the formwork was completed but the concrete was not poured. Two days later the concrete beams were poured
Despite the efficiency of the BIM, there exists the possibility of human error as illustrated in Figure 10. During one of the daily rounds of onsite photography, we recognized a critical error shown in the positioning of concrete formwork, an error that was quickly confirmed by referencing the BIM. This error occurred when the formwork layout person measured to the edge of concrete slab from a column that was off the standard grid. Pouring more concrete (shown in gray in the photo on the left) in this complex post-tension slab construction would have had a serious consequence not only for the contractor but also for the entire project. There were three more floors to be built above this floor.