Full‐Scale Shaking Table Tests on a Resilient Dual Lateral System: First‐Story‐Rocking System With Gravity Frame
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Authors
Zhang, Hong‐Tai
Lin, Yu‐Ao
Sun, Wenhao
Zhao, Bing
Zhang, Rui
Xiang, Ping
Zhao, Xianzhong
MacRae, Gregory A
Yan, Zhenduo
Zhang, Yudi
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Wiley
Abstract
In this paper, a first‐story‐rocking system (FSRS) with gravity frame which is a seismic resilient dual lateral system was investigated. Among them, rocking frame with bilinear elastic rocking is expected to protect the upper moment resisting stories through first story rocking; Gravity frame with low‐damage joints served as a seismic resilient component that collaborates with rocking frames to optimize global stability and control the maximum displacement. As a part of the RObust BUilding SysTem (ROBUST) collaborative China‐New Zealand program, a full‐scale 3‐story FSRS with gravity frame was designed. A series of shaking table tests were conducted to evaluate the dynamic behavior and seismic performance of the FSRS with gravity frame. The test results indicated that the tested building exhibited a longer instantaneous period under stronger excitations while the fundamental period identified by the white noise remained constant. The maximum inter‐story drift ratio satisfied the limit of the current Chinese code for seismic design and the residual displacement was negligible. Horizontal vibration of the upper stories was well controlled, benefiting from the first‐story rocking motion. Moreover, the restraining effect of the composite floor and gravity frame played a crucial role in mitigating the inter‐story drift concentration in the first rocking story and the torsional response in the upper stories. The experimental results not only validated the expected excellent seismic performance of the resilient dual lateral system but also provided benchmark full‐scale data for further analyses of numerical models and design methods.
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0905 Civil Engineering, Strategic, Defence & Security Studies, 4005 Civil engineering, first-story-rocking system, full-scale, low-damage, seismic performance, shaking table test
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Earthquake Engineering & Structural Dynamics, ISSN: 0098-8847 (Print); 1096-9845 (Online), Wiley. doi: 10.1002/eqe.70246
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This is the author's accepted manuscript of an article published in Earthquake Engineering & Structural Dynamics © 2026 John Wiley & Sons Ltd. The publisher's version is available via subscription at doi: 10.1002/eqe.70246