Large-scale shaking table experimental study on a#br#
low-damage self-centering wall building
Zhou Ying1 Gu Anqi1 Lu Yiqiu2 Song Ge1 Richard Henry2 Geoffrey Rodgers3
1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;
2. University of Auckland, Auckland 1010, New Zealand; 3. University of Canterbury, Christchurch 8140, New Zealand
Abstract：To study the low-damage characteristics of precast self-centering wall structures under seismic inputs and innovate detailing validity, a system-level shaking table test of a full-scale precast self-centering concrete wall building has been conducted on the multi-functional shake-table array at Tongji University as part of an international collaborative project between ILEE and QuakeCoRE centers. The test building was designed with a perimeter frame carrying gravity loads and exterior post-tensioned concrete walls in both directions to resist seismic actions. The frame was gravity frame, and slotted-beam connections were used to reduce the beam elongation effect; Flexible and isolated wall-to-floor connections were applied in longitudinal and transverse direction, respectively. Double-Tee floor system and composite floor system were incorporated in test building Level 1 and Level 2, respectively. A number of alternative energy dissipation devices, including steel fuses, nonlinear viscous dampers and HF2V, were also installed at the wall base or/and slotted beam joints of the test building. Different earthquake input levels, ground motions and various design configurations were considered in the large-scale shaking table tests. The global response of test building validated the test building remained low-damaged and self-centering under earthquake input with PGA 1g. The energy dissipation devices were changed multiple times during the tests, and the replaceability of key components was realized successfully.
周颖 顾安琪 鲁懿虬 宋戈 Richard Henry Geoffrey Rodgers. 大型装配式自复位剪力墙结构振动台试验研究[J]. 土木工程学报, 2020, 53(10): 62-71.
Zhou Ying Gu Anqi Lu Yiqiu Song Ge Richard Henry Geoffrey Rodgers. Large-scale shaking table experimental study on a#br#
low-damage self-centering wall building. 土木工程学报, 2020, 53(10): 62-71.
