Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns
With the reinforcement project of a heavy-duty concrete-encased concrete-filled steel tube (CFST) column as the background, the mechanism of column reinforcement with supporting beams is proposed. The key mechanisms include the following: (1) designing the upper and lower corbel-shaped temporary sup...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/7372345 |
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| _version_ | 1850172479270551552 |
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| author | Xiu-Hua Guo Jin-Feng Jiao Zhi-An Wu Jian-Li Zhang |
| author_facet | Xiu-Hua Guo Jin-Feng Jiao Zhi-An Wu Jian-Li Zhang |
| author_sort | Xiu-Hua Guo |
| collection | DOAJ |
| description | With the reinforcement project of a heavy-duty concrete-encased concrete-filled steel tube (CFST) column as the background, the mechanism of column reinforcement with supporting beams is proposed. The key mechanisms include the following: (1) designing the upper and lower corbel-shaped temporary support columns, (2) crack repairing the inner steel pipe using patch-shaped steel plates, and (3) replacing microwound concrete inside the steel pipe, which are all innovative and effective methods. Moreover, a system is developed for monitoring the safety during the reinforcement process and recovering the bearing capacity of the concrete-encased CFST column. The monitoring results indicate that the load conversion process of the temporary support columns lasts for 50 days, that the sum of the axial forces of the four supporting columns is 7,966.0 kN, accounting for 65% of the standard load, and that during the whole process, the structural components are safe and reliable. Finally, the construction simulation is in agreement with the field test results, which proves that the construction simulation developed based on the theory of slow time-dependent mechanics and the method of static nonlinear analysis is accurate. |
| format | Article |
| id | doaj-art-c741d9668fa346dab7b1e72e345c0bf7 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-c741d9668fa346dab7b1e72e345c0bf72025-08-20T02:20:05ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/73723457372345Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST ColumnsXiu-Hua Guo0Jin-Feng Jiao1Zhi-An Wu2Jian-Li Zhang3College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaWith the reinforcement project of a heavy-duty concrete-encased concrete-filled steel tube (CFST) column as the background, the mechanism of column reinforcement with supporting beams is proposed. The key mechanisms include the following: (1) designing the upper and lower corbel-shaped temporary support columns, (2) crack repairing the inner steel pipe using patch-shaped steel plates, and (3) replacing microwound concrete inside the steel pipe, which are all innovative and effective methods. Moreover, a system is developed for monitoring the safety during the reinforcement process and recovering the bearing capacity of the concrete-encased CFST column. The monitoring results indicate that the load conversion process of the temporary support columns lasts for 50 days, that the sum of the axial forces of the four supporting columns is 7,966.0 kN, accounting for 65% of the standard load, and that during the whole process, the structural components are safe and reliable. Finally, the construction simulation is in agreement with the field test results, which proves that the construction simulation developed based on the theory of slow time-dependent mechanics and the method of static nonlinear analysis is accurate.http://dx.doi.org/10.1155/2020/7372345 |
| spellingShingle | Xiu-Hua Guo Jin-Feng Jiao Zhi-An Wu Jian-Li Zhang Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns Advances in Civil Engineering |
| title | Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns |
| title_full | Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns |
| title_fullStr | Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns |
| title_full_unstemmed | Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns |
| title_short | Research on the Reinforcement Mechanism and Safety Monitoring of Heavy-Duty Concrete-Encased CFST Columns |
| title_sort | research on the reinforcement mechanism and safety monitoring of heavy duty concrete encased cfst columns |
| url | http://dx.doi.org/10.1155/2020/7372345 |
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