Prefabricated Concrete Component Geometry Deviation Statistical Analysis

Table 3

Result of dimensional measurement.

Prefabricated	Dimension	Design value (mm)	Measuring steel tape (mm)	Photogrammetry system (mm)
Prefabricated beam components	Length	2830	2833	2831.86
	Width	400	402	400.82
	Height	410	413	412.03
Prefabricated column components	Length	2535	2539	2537.08
	Width	500	503	502.07
	Height	520	523	520.67
Prefabricated wall panel components	Height	6630	6633	6629.84
	Width	2600	2598	2599.24
	Thickness	240	238	240.65
Prefabricated composite slab	Length	4350	4355	4346.06
	Width	3930	3933	3926.95

Since the thickness direction of the prefabricated composite slab is cast-in-place concrete, it was not counted.