Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test
We aimed to investigate the extent to which the initial state generated by unexpected loads, such as explosions and impacts on the remaining structure, affects the dynamic response of the structure. The study used the orthogonal test method to obtain orthogonal table L25 (53) by combining five level...
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MDPI AG
2023-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/7/4317 |
| _version_ | 1797608340405092352 |
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| author | Changren Ke Xianwei Li Junling Jiang |
| author_facet | Changren Ke Xianwei Li Junling Jiang |
| author_sort | Changren Ke |
| collection | DOAJ |
| description | We aimed to investigate the extent to which the initial state generated by unexpected loads, such as explosions and impacts on the remaining structure, affects the dynamic response of the structure. The study used the orthogonal test method to obtain orthogonal table L25 (53) by combining five levels of each of the three factors of column removal time and initial velocity, and the initial displacement of the remaining structure under three failure scenarios of the corner, side, and internal columns at the ground floor of the reinforced concrete frame structure. The degree of influence of different factors on the structural dynamic response, and the result of the unifactorial impact of initial velocity and initial displacement of the remaining structure on the structural dynamic response in the case of failure of the bottom side columns, were obtained by the polar difference method. The results show that the analysis using the orthogonal test polar difference method revealed that the initial displacement has a more significant influence on the dynamic response of the structure, forming the main influencing factor. At the same time, the failure time and initial velocity have a smaller influence on the dynamic response of the structure as secondary influencing factors. In the case of unifactorial influence, the initial upward displacement and initial upward velocity are detrimental to the structure, leading to progressive collapse. In contrast, the initial downward velocity and initial downward displacement are favorable. |
| first_indexed | 2024-03-11T05:43:05Z |
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| id | doaj.art-9636846961e64fa1955113d1b990d391 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:43:05Z |
| publishDate | 2023-03-01 |
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| spelling | doaj.art-9636846961e64fa1955113d1b990d3912023-11-17T16:18:38ZengMDPI AGApplied Sciences2076-34172023-03-01137431710.3390/app13074317Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal TestChangren Ke0Xianwei Li1Junling Jiang2School of Civil Architecture and Environment, Hubei University of Technology, Wuhan 430068, ChinaSchool of Civil Architecture and Environment, Hubei University of Technology, Wuhan 430068, ChinaSchool of Civil Architecture and Environment, Hubei University of Technology, Wuhan 430068, ChinaWe aimed to investigate the extent to which the initial state generated by unexpected loads, such as explosions and impacts on the remaining structure, affects the dynamic response of the structure. The study used the orthogonal test method to obtain orthogonal table L25 (53) by combining five levels of each of the three factors of column removal time and initial velocity, and the initial displacement of the remaining structure under three failure scenarios of the corner, side, and internal columns at the ground floor of the reinforced concrete frame structure. The degree of influence of different factors on the structural dynamic response, and the result of the unifactorial impact of initial velocity and initial displacement of the remaining structure on the structural dynamic response in the case of failure of the bottom side columns, were obtained by the polar difference method. The results show that the analysis using the orthogonal test polar difference method revealed that the initial displacement has a more significant influence on the dynamic response of the structure, forming the main influencing factor. At the same time, the failure time and initial velocity have a smaller influence on the dynamic response of the structure as secondary influencing factors. In the case of unifactorial influence, the initial upward displacement and initial upward velocity are detrimental to the structure, leading to progressive collapse. In contrast, the initial downward velocity and initial downward displacement are favorable.https://www.mdpi.com/2076-3417/13/7/4317progressive collapsedynamic responseorthogonal testinitial conditionelement failure timestructural failure |
| spellingShingle | Changren Ke Xianwei Li Junling Jiang Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test Applied Sciences progressive collapse dynamic response orthogonal test initial condition element failure time structural failure |
| title | Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test |
| title_full | Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test |
| title_fullStr | Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test |
| title_full_unstemmed | Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test |
| title_short | Dynamic Response Analysis of RC Frame against Progressive Collapse Based on Orthogonal Test |
| title_sort | dynamic response analysis of rc frame against progressive collapse based on orthogonal test |
| topic | progressive collapse dynamic response orthogonal test initial condition element failure time structural failure |
| url | https://www.mdpi.com/2076-3417/13/7/4317 |
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