Physical and Mechanical Properties of Transmission Line Galloping under the Action of Freezing and Thawing in Variable Temperature Range

Table 1

Experimental results before and after freezing and thawing.

	Lower temperature limit°C	Uniaxial compressive strength (average) (MPa)	Modulus of elasticity (average) (GPa)	Poisson ratio
Before experiment		120.17	44.98	0.18
Posttest	−20°C	100.67	39.58	0.2
	−30°C	91.43	35.14	0.21
	−40°C	83.08	30.25	0.24