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

Table 7

Capacity peak ground acceleration and risk index (IO, DL, and LS Limit States).

	IO X-Dir.		DL X-Dir.		LS X-Dir.		IO Y-Dir.		DL Y-Dir.		LS Y-Dir.
	PGA/g		PGA/g		PGA/g		PGA/g		PGA/g		PGA/g
+Modal + Ecc	0.143	1.402	0.197	1.470	0.351	1.023	0.094	0.922	0.128	0.955	0.432	1.259
- Modal + Ecc	0.151	1.480	0.199	1.485	0.332	0.968	0.090	0.882	0.126	0.940	0.434	1.265
+Modal - Ecc	0.148	1.451	0.197	1.470	0.321	0.936	0.090	0.882	0.126	0.940	0.435	1.268
- Modal - Ecc	0.143	1.402	0.199	1.485	0.325	0.948	0.090	0.882	0.128	0.955	0.431	1.257
+Uniform + Ecc	0.155	1.520	0.204	1.522	0.370	1.079	0.094	0.922	0.128	0.955	0.443	1.292
-Uniform + Ecc	0.152	1.490	0.197	1.470	0.237	0.691	0.090	0.882	0.126	0.940	0.445	1.297
+Uniform - Ecc	0.149	1.461	0.197	1.470	0.340	0.991	0.090	0.882	0.126	0.940	0.446	1.300
-Uniform - Ecc	0.151	1.480	0.202	1.507	0.342	0.997	0.090	0.882	0.126	0.940	0.442	1.289