Research on In Situ Stress Measurements in Reinforced Concrete Beams Based on the Core-Drilling Method

Table 6

Comparison of numerical and experimental in situ stress results for the concrete of the first beam.

Diameter (mm)	Serial number	Strain gauge specification	Theoretical loaded stress (MPa)	Theoretical dead weight stress (MPa)	Theoretical stress (dead weight and load) (MPa)	Load and dead weight (MPa)	Error (%)
75	Front	30AA	−1.99	−0.33	−2.32	−2.12	8.62
	1-2	20AA	−2.01	−0.34	−2.35	−2.18	7.23