Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading
Recently, a concrete-filled steel tube confined with fiber-reinforced polymer (FRP) has become a hot research issue as a new type of structure. These studies mainly focus on its static performance and seismic and impact behaviour, with little research on its blast resistance performance. In this stu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/8692310 |
| _version_ | 1798045061832769536 |
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| author | Jing Dong Junhai Zhao Dongfang Zhang Yingping Li |
| author_facet | Jing Dong Junhai Zhao Dongfang Zhang Yingping Li |
| author_sort | Jing Dong |
| collection | DOAJ |
| description | Recently, a concrete-filled steel tube confined with fiber-reinforced polymer (FRP) has become a hot research issue as a new type of structure. These studies mainly focus on its static performance and seismic and impact behaviour, with little research on its blast resistance performance. In this study, the dynamic response of concrete-filled steel tube columns confined with FRP under blast loading was investigated. Numerical analysis was implemented using multimaterial ALE method in the finite element analysis program LS-DYNA. The proposed numerical model was validated by the SDOF result and available experimental data. And the effects of the number of FRP layers, concrete strength, and cross section were also discussed in detail based on the proposed numerical model. The results indicate that the constraints of FRP effectively enhance the blast resistance of the column, and the vulnerable parts mainly occur at the middle and two ends of the column. The blast resistance of the column can be enhanced by increasing the number of FRP layers or concrete strength. These results could provide a certain basis for blast resistance design of concrete-filled steel tubes confined with FRP. |
| first_indexed | 2024-04-11T23:14:37Z |
| format | Article |
| id | doaj.art-aaf4ba79cd21489fb69bffa97560dce6 |
| institution | Directory Open Access Journal |
| issn | 1070-9622 1875-9203 |
| language | English |
| last_indexed | 2024-04-11T23:14:37Z |
| publishDate | 2019-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj.art-aaf4ba79cd21489fb69bffa97560dce62022-12-22T03:57:40ZengHindawi LimitedShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/86923108692310Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast LoadingJing Dong0Junhai Zhao1Dongfang Zhang2Yingping Li3School of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaSchool of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaSchool of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaSchool of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaRecently, a concrete-filled steel tube confined with fiber-reinforced polymer (FRP) has become a hot research issue as a new type of structure. These studies mainly focus on its static performance and seismic and impact behaviour, with little research on its blast resistance performance. In this study, the dynamic response of concrete-filled steel tube columns confined with FRP under blast loading was investigated. Numerical analysis was implemented using multimaterial ALE method in the finite element analysis program LS-DYNA. The proposed numerical model was validated by the SDOF result and available experimental data. And the effects of the number of FRP layers, concrete strength, and cross section were also discussed in detail based on the proposed numerical model. The results indicate that the constraints of FRP effectively enhance the blast resistance of the column, and the vulnerable parts mainly occur at the middle and two ends of the column. The blast resistance of the column can be enhanced by increasing the number of FRP layers or concrete strength. These results could provide a certain basis for blast resistance design of concrete-filled steel tubes confined with FRP.http://dx.doi.org/10.1155/2019/8692310 |
| spellingShingle | Jing Dong Junhai Zhao Dongfang Zhang Yingping Li Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading Shock and Vibration |
| title | Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading |
| title_full | Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading |
| title_fullStr | Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading |
| title_full_unstemmed | Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading |
| title_short | Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading |
| title_sort | research on dynamic response of concrete filled steel tube columns confined with frp under blast loading |
| url | http://dx.doi.org/10.1155/2019/8692310 |
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