A New Buckling-Restrained Brace with a Variable Cross-Section Core

Table 5

Design parameters of models (unit: mm).

Model	Restraining tube	Core	End rib	Middle rib	Flat-plate segment
	Lt × B1 × B2 × t1	L × b1× b2 × t2	Ld1 × Ld2 × H1 × H2 × t3	Ls × H2 × t3	Lf	Number
BRB-TJ-I	1080 × 102 × 94 × 12	1600 × 100 × 80 × 10	180 × 60 × 45 × 30 × 8	—	—	—
BRB-VCC-7				520 × 30 × 8	80	1
BRB-VCC-8				346 × 30 × 8	40	2
BRB-VCC-9				208 × 30 × 8	20	4