Thermal Behavior of Cylindrical Buckling Restrained Braces at Elevated Temperatures

Table 1

Material parameters of CDP model for concrete [18].

Concrete elasticity		Parameters of CDP model
		𝛽	38^∘
		𝑚	1
𝐸 (Gpa)	19.7	𝑓=𝑓𝑏0/𝑓𝑐	1.12
𝜈	0.19	𝛾	0.67
Concrete compression hardening		Concrete compression damage
Stress (Mpa)	Crushing strain	Damage	Crushing strain
15.00	0.000000	0.000000	0.000000
20.20	0.000075	0.000000	0.000074
30.00	0.000100	0.000000	0.000099
40.30	0.000154	0.000000	0.000154
50.01	0.000761	0.000000	0.000761
40.24	0.002557	0.195402	0.002557
20.24	0.005675	0.596382	0.005675
5.26	0.011733	0.894865	0.011733
Concrete tension stiffening		Concrete tension damage
Stress (MPa)	Cracking strain	Damage	Cracking strain
1.20	0.000000	0.000000	0.000000
2.84	0.000030	0.000000	0.000033
1.87	0.000160	0.406411	0.000160
0.86	0.000279	0.696380	0.000279
0.23	0.000684	0.920389	0.000684
0.06	0.001087	0.980093	0.001086