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Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation

The differential settlement of the foundation not only causes the degradation of the static performance of structures, but also affects the seismic performance. To investigate the seismic response of a planar irregular steel frame structure under differential settlement of foundation, we proposed a...

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Main Authors: Xu, Fangze, Bao, Chao, Ma, Xiaotong, Zhang, Youqi, Sing Lim, Kar, Zhang, Yuhang, Wang, Huxiang, Hu, Jun
Format: Article
Language:English
English
Published: Elsevier Ltd 2022
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/40435/1/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular.pdf
http://umpir.ump.edu.my/id/eprint/40435/2/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular%20structure%20with%20differential%20settlements%20of%20foundation_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40435/
https://doi.org/10.1016/j.istruc.2022.10.090
https://doi.org/10.1016/j.istruc.2022.10.090
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spelling my.ump.umpir.404352024-04-16T04:26:12Z http://umpir.ump.edu.my/id/eprint/40435/ Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation Xu, Fangze Bao, Chao Ma, Xiaotong Zhang, Youqi Sing Lim, Kar Zhang, Yuhang Wang, Huxiang Hu, Jun T Technology (General) TA Engineering (General). Civil engineering (General) The differential settlement of the foundation not only causes the degradation of the static performance of structures, but also affects the seismic performance. To investigate the seismic response of a planar irregular steel frame structure under differential settlement of foundation, we proposed a method to mimic multi-point differential settlement of foundations of scaled models steel frame structures. Four columns in the settlement location are adjusted downward to the set settlement distance, and then, the columns are fixed with nuts to achieve the effect of settlement in one location. Then a shaking table test was carried out on a scaled-down building model to analyze the dynamic responses of the structure. Eight seismic waves and three ground shaking intensities were set to represent frequent, moderate, and rare earthquakes. The seismic response, location changes, and torsion of the irregular planar structure were analyzed via shaking table tests under different seismic waves with frequent, moderate, and rare earthquake excitation, as well as changing parameters such as settlement location and settlement depth. The results show that compared with other locations, when a differential settlement of the foundation occurs in the corner location of the structure plane, the structure is more likely to be torsional and more prone to seismic damage. For the same seismic intensity and settlement depth, the settlement location at the corner of the structure face exhibited the greatest seismic response to the structure. In contrast, the settlement located near the center of the structure face had the least effect on the seismic response of the structure. The proposed method enables a fast and efficient way to understand the dynamic response of the structures with differential settlement of foundations, which will further benefit the development and optimization of the seismic strengthening scheme for these structures. Elsevier Ltd 2022-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40435/1/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular.pdf pdf en http://umpir.ump.edu.my/id/eprint/40435/2/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular%20structure%20with%20differential%20settlements%20of%20foundation_ABS.pdf Xu, Fangze and Bao, Chao and Ma, Xiaotong and Zhang, Youqi and Sing Lim, Kar and Zhang, Yuhang and Wang, Huxiang and Hu, Jun (2022) Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation. Structures, 46. pp. 988-999. ISSN 2352-0124. (Published) https://doi.org/10.1016/j.istruc.2022.10.090 https://doi.org/10.1016/j.istruc.2022.10.090
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Xu, Fangze
Bao, Chao
Ma, Xiaotong
Zhang, Youqi
Sing Lim, Kar
Zhang, Yuhang
Wang, Huxiang
Hu, Jun
Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
description The differential settlement of the foundation not only causes the degradation of the static performance of structures, but also affects the seismic performance. To investigate the seismic response of a planar irregular steel frame structure under differential settlement of foundation, we proposed a method to mimic multi-point differential settlement of foundations of scaled models steel frame structures. Four columns in the settlement location are adjusted downward to the set settlement distance, and then, the columns are fixed with nuts to achieve the effect of settlement in one location. Then a shaking table test was carried out on a scaled-down building model to analyze the dynamic responses of the structure. Eight seismic waves and three ground shaking intensities were set to represent frequent, moderate, and rare earthquakes. The seismic response, location changes, and torsion of the irregular planar structure were analyzed via shaking table tests under different seismic waves with frequent, moderate, and rare earthquake excitation, as well as changing parameters such as settlement location and settlement depth. The results show that compared with other locations, when a differential settlement of the foundation occurs in the corner location of the structure plane, the structure is more likely to be torsional and more prone to seismic damage. For the same seismic intensity and settlement depth, the settlement location at the corner of the structure face exhibited the greatest seismic response to the structure. In contrast, the settlement located near the center of the structure face had the least effect on the seismic response of the structure. The proposed method enables a fast and efficient way to understand the dynamic response of the structures with differential settlement of foundations, which will further benefit the development and optimization of the seismic strengthening scheme for these structures.
format Article
author Xu, Fangze
Bao, Chao
Ma, Xiaotong
Zhang, Youqi
Sing Lim, Kar
Zhang, Yuhang
Wang, Huxiang
Hu, Jun
author_facet Xu, Fangze
Bao, Chao
Ma, Xiaotong
Zhang, Youqi
Sing Lim, Kar
Zhang, Yuhang
Wang, Huxiang
Hu, Jun
author_sort Xu, Fangze
title Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
title_short Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
title_full Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
title_fullStr Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
title_full_unstemmed Shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
title_sort shaking table test on seismic response of a planar irregular structure with differential settlements of foundation
publisher Elsevier Ltd
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/40435/1/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular.pdf
http://umpir.ump.edu.my/id/eprint/40435/2/Shaking%20table%20test%20on%20seismic%20response%20of%20a%20planar%20irregular%20structure%20with%20differential%20settlements%20of%20foundation_ABS.pdf
http://umpir.ump.edu.my/id/eprint/40435/
https://doi.org/10.1016/j.istruc.2022.10.090
https://doi.org/10.1016/j.istruc.2022.10.090
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