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A platform for research: civil engineering, architecture and urbanism
Seismic isolation technology for prestressed segmental precast piers
https://orcid.org/0000-0001-9835-6475
https://orcid.org/0000-0002-8632-1985
Abstract Prestressed segmental precast (PC) piers, with insufficient energy dissipation capacity, are seldomly adopted on bridges in seismic areas. To improve the seismic performance of PC piers, this study proposes a functional separation seismic isolation device (FSID), serving as a supplementary replaceable energy dissipation device. Full-scale field load tests on a real-world PC pier were carried out to qualify the seismic performance of this type of piers. Based on the results of tests and supplementary numerical analysis, an optimal design of the FSID was achieved. The numerical results show that the FSID has multi-stage statuses and reaction models. By optimizing the design parameters, FSID can enable the PC piers to satisfy the required seismic performance under various levels of earthquakes. Therefore, the performance-based seismic design of PC piers can be achieved using the FSID.
Highlights Full scale in-situ test of assembly pier with hybrid connection is carried out. The energy dissipation capacity of prestressed segmental precast piers is increased. A functional separation seismic isolation device is proposed. Optimal design of the seismic isolation device is obtained.
Seismic isolation technology for prestressed segmental precast piers
https://orcid.org/0000-0001-9835-6475
https://orcid.org/0000-0002-8632-1985
Abstract Prestressed segmental precast (PC) piers, with insufficient energy dissipation capacity, are seldomly adopted on bridges in seismic areas. To improve the seismic performance of PC piers, this study proposes a functional separation seismic isolation device (FSID), serving as a supplementary replaceable energy dissipation device. Full-scale field load tests on a real-world PC pier were carried out to qualify the seismic performance of this type of piers. Based on the results of tests and supplementary numerical analysis, an optimal design of the FSID was achieved. The numerical results show that the FSID has multi-stage statuses and reaction models. By optimizing the design parameters, FSID can enable the PC piers to satisfy the required seismic performance under various levels of earthquakes. Therefore, the performance-based seismic design of PC piers can be achieved using the FSID.
Highlights Full scale in-situ test of assembly pier with hybrid connection is carried out. The energy dissipation capacity of prestressed segmental precast piers is increased. A functional separation seismic isolation device is proposed. Optimal design of the seismic isolation device is obtained.
Seismic isolation technology for prestressed segmental precast piers
https://orcid.org/0000-0001-9835-6475
https://orcid.org/0000-0002-8632-1985
Abstract Prestressed segmental precast (PC) piers, with insufficient energy dissipation capacity, are seldomly adopted on bridges in seismic areas. To improve the seismic performance of PC piers, this study proposes a functional separation seismic isolation device (FSID), serving as a supplementary replaceable energy dissipation device. Full-scale field load tests on a real-world PC pier were carried out to qualify the seismic performance of this type of piers. Based on the results of tests and supplementary numerical analysis, an optimal design of the FSID was achieved. The numerical results show that the FSID has multi-stage statuses and reaction models. By optimizing the design parameters, FSID can enable the PC piers to satisfy the required seismic performance under various levels of earthquakes. Therefore, the performance-based seismic design of PC piers can be achieved using the FSID.
Highlights Full scale in-situ test of assembly pier with hybrid connection is carried out. The energy dissipation capacity of prestressed segmental precast piers is increased. A functional separation seismic isolation device is proposed. Optimal design of the seismic isolation device is obtained.
Seismic isolation technology for prestressed segmental precast piers
Zou, Shuang (author) / Wenliuhan, Heisha (author) / Liu, Yanhui (author) / Yang, Zhenyu (author) / Zhang, Chongbin (author) / Yuan, Liping (author)
2022-05-23
Article (Journal)
Electronic Resource
English
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