Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure
A typical single-layer raw soil structure in villages and towns in China is taken as the research object. In the probabilistic seismic demand analysis, the seismic demand model is obtained by the incremental dynamic time history analysis method. The seismic vulnerability analysis is carried out for...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2022-10-01
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| Series: | Earthquake Research Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772467022000665 |
| _version_ | 1811173295666495488 |
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| author | Shiwei Hou Guangliang Gao Hao Zhang Zhanwen Lai Junyan Han |
| author_facet | Shiwei Hou Guangliang Gao Hao Zhang Zhanwen Lai Junyan Han |
| author_sort | Shiwei Hou |
| collection | DOAJ |
| description | A typical single-layer raw soil structure in villages and towns in China is taken as the research object. In the probabilistic seismic demand analysis, the seismic demand model is obtained by the incremental dynamic time history analysis method. The seismic vulnerability analysis is carried out for the raw soil structure of non-foundation, strip foundation, and spiral anchor composite foundation, respectively. The spiral anchor composite foundation can reduce the seismic response and failure state of raw soil structure, and the performance level of the structure is significantly improved. Structural requirements sample data with the same ground motion intensity are analyzed by linear regression statistics. Compared with the probabilistic seismic demand model under various working conditions, the seismic demand increases gradually with the increase of intensity. The seismic vulnerability curve is summarized for comparative analysis. With the gradual deepening of the limit state, the reduction effect of spiral anchor composite foundation on the exceedance probability becomes more and more obvious, which can reduce the probability of structural failure to a certain extent. |
| first_indexed | 2024-04-10T17:44:28Z |
| format | Article |
| id | doaj.art-95028bdca1674524a8f13db1385a670d |
| institution | Directory Open Access Journal |
| issn | 2772-4670 |
| language | English |
| last_indexed | 2024-04-10T17:44:28Z |
| publishDate | 2022-10-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Earthquake Research Advances |
| spelling | doaj.art-95028bdca1674524a8f13db1385a670d2023-02-03T05:01:52ZengKeAi Communications Co. Ltd.Earthquake Research Advances2772-46702022-10-0124100175Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structureShiwei Hou0Guangliang Gao1Hao Zhang2Zhanwen Lai3Junyan Han4School of Civil Engineering, Shenyang Jianzhu University, Shenyang, 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang, 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang, 110168, China; Corresponding author.School of Civil Engineering, Shenyang Jianzhu University, Shenyang, 110168, ChinaThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, 100124, ChinaA typical single-layer raw soil structure in villages and towns in China is taken as the research object. In the probabilistic seismic demand analysis, the seismic demand model is obtained by the incremental dynamic time history analysis method. The seismic vulnerability analysis is carried out for the raw soil structure of non-foundation, strip foundation, and spiral anchor composite foundation, respectively. The spiral anchor composite foundation can reduce the seismic response and failure state of raw soil structure, and the performance level of the structure is significantly improved. Structural requirements sample data with the same ground motion intensity are analyzed by linear regression statistics. Compared with the probabilistic seismic demand model under various working conditions, the seismic demand increases gradually with the increase of intensity. The seismic vulnerability curve is summarized for comparative analysis. With the gradual deepening of the limit state, the reduction effect of spiral anchor composite foundation on the exceedance probability becomes more and more obvious, which can reduce the probability of structural failure to a certain extent.http://www.sciencedirect.com/science/article/pii/S2772467022000665Spiral anchorRaw soil structureProbabilistic seismic demand analysisIncremental dynamic time history analysisSeismic vulnerability analysis |
| spellingShingle | Shiwei Hou Guangliang Gao Hao Zhang Zhanwen Lai Junyan Han Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure Earthquake Research Advances Spiral anchor Raw soil structure Probabilistic seismic demand analysis Incremental dynamic time history analysis Seismic vulnerability analysis |
| title | Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| title_full | Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| title_fullStr | Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| title_full_unstemmed | Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| title_short | Influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| title_sort | influence of spiral anchor composite foundation on seismic vulnerability of raw soil structure |
| topic | Spiral anchor Raw soil structure Probabilistic seismic demand analysis Incremental dynamic time history analysis Seismic vulnerability analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2772467022000665 |
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