From: Experimental and Analytical Studies for the Size Effect on the Axial Strength of High-Strength Concrete Walls with Various Fire-Damaged Areas
Specimen
Heated area
Axial strength (kN)
Reduction ratio of axial strength to control specimen (%)
54S_CL
None
4870.3
0
54S_1H
Half-surface
3918.6
19.54
54S_1F
Single-surface
3195.0
34.40
54S_2F
Double-surfaces
3041.7
37.55