|
| Uplift fragility analysis for base-isolated high-rise buildings based on first excursion failure |
| Received:July 05, 2012 Revised:September 15, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201305007 |
| KeyWord:uplift fragility analysis base-isolated high-rise buildings random vibration equivalent linearization method |
| Author | Institution |
| 马长飞 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 张亚辉 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 谭平 |
广州大学 工程抗震研究中心, 广州 |
| 周福霖 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 ;广州大学 工程抗震研究中心, 广州 |
| 朱丹阳 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
|
| Hits: 2212 |
| Download times: 1544 |
| Abstract: |
| Uplift fragility curves of all the isolators for a base-isolated high-rise building subjected to non-stationary random excitations are obtained based on the first excursion failure.The isolated structure is modeled by the finite element method,and the isolators are described by the Bouc-Wen model.The stochastic responses are obtained by the pseudo excitation method after the linearization of the isolators.The influences of the damping ratio,yield force of the isolators and the direction of the ground motion on the uplift fragility curves are investigated,respectively.The results show that the probability of failure by uplift increases with the increase of either damping ratio or yield force of the isolators; the direction of the input excitations affects the uplift fragility curves significantly. |