A Displacement-Based Design Method for Seismic Retrofit of RC Buildings Using Dissipative Braces

Table 11

Preliminary design. Solution 1: Buckling-restrained braces (BRB).

(a) Distribution of BRB along the height, direction x-x

Floor	BRB type						Steel Brace
		kN/mm	kN	mm	mm	mm		mm^2	kN/mm	kN/mm	(kN/mm
1	48/40	210	417	1640	3400	1760	193.7/10	5770	688.47	160.92	1287.33
2	34/40	153	301	1625	3660	2035	193.7/8	4670	481.92	116.13	929.04
3	27/40	123	239	1585	3700	2115	168.3/6	3060	303.83	87.55	700.44

(b) Distribution of BRB along the height, direction y-y

Floor	BRB type								Steel Brace
		kN/mm	kN	mm	mm	mm	mm	mm		mm^2	kN/mm	kN/mm	kN/mm	kN/mm	kN/mm
1	48/40	210	417	1640	4220	3911	2580	2271	193.7/10	5770	469.65	533.55	145.11	150.69	1172.06
2	34/40	153	301	1625	4310	4000	2685	2375	193.7/8	4670	365.25	412.93	107.83	111.64	870.26
3	27/40	123	239	1585	4310	4000	2725	2415	168.3/6	3060	235.82	266.09	80.84	84.12	653.25