Research Article
Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure
Table 4
Information of the ground motions.
| Excitation types | Record sequence number (RSN) | Name | VPP (s) | M | Bracketed duration (≥1/3Amax) (s) | Energy duration (5%–95%) (s) | Peak ground acceleration (PGA) () |
| Site-II | 56 (130) | San Fernando | — | 6.61 | 11.6 | 18.9 | 0.071 | 56 (220) | San Fernando | — | 6.61 | 14.7 | 18.9 | 0.071 | 83 | San Fernando | — | 6.61 | 8.4 | 14.3 | 0.074 |
| Near-fault pulse-type (NFPT) | 2457 | Chi-Chi_ Taiwan-03 | 3.18 | 6.20 | 5.7 | 12.9 | 0.187 | 900 | Landers | 7.50 | 7.28 | 8.3 | 18.9 | 0.245 | 6911 | Darfield_New Zealand | 9.92 | 7.00 | 7.6 | 9.5 | 0.450 |
| Long period (LP) | 69 (249) | San Fernando | — | 6.61 | 51.7 | 52.4 | 0.029 | 74 | San Fernando | — | 6.61 | 33.6 | 29.6 | 0.007 | 90 (132) | San Fernando | — | 6.61 | 51.4 | 49.3 | 0.017 |
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