Research Article
Base Isolation for Seismic Retrofitting of a Multiple Building Structure: Design, Construction, and Assessment
Table 2
Target displacement and corresponding peak ground acceleration (IO Limit State, DL Limit State, and LS Limit State).
| | Capacity of structure A | Capacity of structure B | Capacity of structure C | | IO | DL | LS | IO | DL | LS | IO | DL | LS | | | PGA/g | | PGA/g | | PGA/g | | PGA/g | | PGA/g | | PGA/g | | PGA/g | | PGA/g | | PGA/g |
| First-Mode + X + Ecc | 16 | 0.074 | 35 | 0.223 | 174 | 0.374 | 20 | 0.081 | 26 | 0.196 | 63 | 0.374 | 18 | 0.085 | 24 | 0.218 | 56 | 0.374 | First-Mode – X + Ecc | 18 | 0.079 | 36 | 0.241 | 175 | 0.374 | 20 | 0.081 | 26 | 0.201 | 63 | 0.374 | 18 | 0.086 | 24 | 0.193 | 57 | 0.374 | First-Mode + X – Ecc | 18 | 0.086 | 38 | 0.262 | 176 | 0.374 | 20 | 0.080 | 26 | 0.159 | 63 | 0.374 | 18 | 0.088 | 23 | 0.213 | 56 | 0.374 | First-Mode – X – Ecc | 16 | 0.070 | 32 | 0.186 | 168 | 0.374 | 20 | 0.081 | 26 | 0.200 | 63 | 0.374 | 18 | 0.088 | 23 | 0.226 | 55 | 0.374 | Uniform + X + Ecc | 20 | 0.083 | 40 | 0.230 | 54 | 0.177 | 22 | 0.090 | 30 | 0.208 | 71 | 0.374 | 20 | 0.101 | 27 | 0.260 | 65 | 0.114 | Uniform – X + Ecc | 20 | 0.090 | 41 | 0.246 | 54 | 0.111 | 22 | 0.087 | 29 | 0.220 | 71 | 0.374 | 20 | 0.115 | 27 | 0.355 | 65 | 0.248 | Uniform + X – Ecc | 21 | 0.094 | 39 | 0.220 | 39 | 0.096 | 22 | 0.085 | 30 | 0.177 | 71 | 0.374 | 21 | 0.105 | 27 | 0.241 | 66 | 0.310 | Uniform – X – Ecc | 23 | 0.080 | 30 | 0.208 | 73 | 0.164 | 22 | 0.090 | 29 | 0.231 | 71 | 0.374 | 20 | 0.101 | 27 | 0.274 | 65 | 0.324 | First-Mode + Y + Ecc | 17 | 0.097 | 34 | 0.229 | 150 | 0.374 | 21 | 0.065 | 27 | 0.170 | 66 | 0.374 | 17 | 0.074 | 22 | 0.143 | 51 | 0.374 | First-Mode – Y + Ecc | 17 | 0.083 | 38 | 0.276 | 156 | 0.374 | 21 | 0.068 | 27 | 0.188 | 66 | 0.374 | 15 | 0.074 | 20 | 0.160 | 47 | 0.374 | First-Mode + Y – Ecc | 17 | 0.083 | 37 | 0.263 | 155 | 0.374 | 21 | 0.068 | 27 | 0.186 | 66 | 0.374 | 16 | 0.071 | 20 | 0.131 | 48 | 0.374 | First-Mode – Y – Ecc | 18 | 0.094 | 35 | 0.246 | 152 | 0.374 | 21 | 0.065 | 27 | 0.173 | 66 | 0.374 | 17 | 0.070 | 22 | 0.149 | 51 | 0.374 | Uniform + Y + Ecc | 21 | 0.105 | 42 | 0.276 | 155 | 0.374 | 23 | 0.076 | 31 | 0.194 | 74 | 0.374 | 22 | 0.105 | 29 | 0.221 | 70 | 0.374 | Uniform – Y + Ecc | 19 | 0.090 | 41 | 0.259 | 69 | 0.314 | 23 | 0.076 | 31 | 0.195 | 74 | 0.374 | 20 | 0.105 | 27 | 0.241 | 65 | 0.374 | Uniform + Y – Ecc | 22 | 0.090 | 29 | 0.254 | 69 | 0.349 | 23 | 0.074 | 31 | 0.184 | 74 | 0.374 | 21 | 0.101 | 27 | 0.191 | 66 | 0.374 | Uniform – Y – Ecc | 22 | 0.105 | 29 | 0.271 | 69 | 0.334 | 23 | 0.074 | 31 | 0.196 | 74 | 0.374 | 22 | 0.105 | 29 | 0.274 | 70 | 0.374 |
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