[1]QIN Hongguo,LI Ping,ZHANG Zhichao,et al.Seismic Fragility and Life-cycle Performance Assessment of the Continuous Beam Bridge Isolated with SMA-LRB[J].Journal of Seismological Research,2023,46(04):562-574.[doi:10.20015/j.cnki.ISSN1000-0666.2023.0030
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
46
Number of periods:
2023 04
Page number:
562-574
Column:
Public date:
2023-07-15
- Title:
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Seismic Fragility and Life-cycle Performance Assessment of the Continuous Beam Bridge Isolated with SMA-LRB
- Author(s):
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QIN Hongguo; LI Ping; ZHANG Zhichao; WANG Haohao; SHI Yan
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(School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China)
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- Keywords:
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continuous beam bridge; seismic isolation; Lead Rubber Bearings; the Shape Memory Alloy; seismic fragility
- CLC:
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P315.925; U448.23
- DOI:
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10.20015/j.cnki.ISSN1000-0666.2023.0030
- Abstract:
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In order to study the seismic fragility and life-cycle performance of the continuous beam bridges isolated by Lead Rubber Bearings(LRB)and the Shape Memory Alloy supplemented Lead Rubber Bearings(SMA-LRB)respectively,the damage probabilities of the two types of bridges in four damaged conditions were compared,and then the life-cycle performance evaluation method was used to quantify the bridges' seismic losses in the form of money.The results show that the SMA-LRB isolation system can effectively decrease the damage probability of bearings and that of the pier seriously and completely damaged.The bridge life-cycle losses can be significantly reduced by SMA-LRB when the ground motion is weak.