Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames
The progressive collapse performance of reinforced concrete (RC) building structures has been extensively investigated using the alternate load path method. However, most studies have focused on newly designed structures, with limited attention given to existing buildings. Since progressive collapse...
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MDPI AG
2025-07-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/15/14/2534 |
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| author | Luchuan Ding Xiaodi Dai Yiping Gan Yihua Zeng |
| author_facet | Luchuan Ding Xiaodi Dai Yiping Gan Yihua Zeng |
| author_sort | Luchuan Ding |
| collection | DOAJ |
| description | The progressive collapse performance of reinforced concrete (RC) building structures has been extensively investigated using the alternate load path method. However, most studies have focused on newly designed structures, with limited attention given to existing buildings. Since progressive collapse can occur at any point during a structure’s service life and at various locations within the structural system, this study examines the progressive collapse behavior of deteriorated RC frames subjected to simulated reinforcement corrosion. This paper presents an investigation into the system-level progressive collapse responses of deteriorated RC frames, which extends the current state of the art in this field. The influence of different material deteriorations, different corrosion locations, different column removal scenarios, and dynamic effects on structural response is explored. According to the results obtained in this research, a significant reduction in progressive collapse resistance can be resulted in with increasing corrosion levels. Notably, only reinforcement corrosion in the beams located directly above the removed column (i.e., within the directly affected part) for the investigated RC frame had a substantial impact on structural performance. In contrast, corrosion in other regions and concrete deterioration exhibited minimal influence in this work. An increased number of corroded floors further reduced collapse resistance. Dynamic progressive collapse resistance was found to be considerably lower than its static counterpart and decreased at a slightly faster rate as corrosion progressed. Additionally, the energy-based method was shown to provide a reasonable approximation of the maximum dynamic responses at different corrosion levels, offering a computationally efficient alternative to full dynamic analysis. |
| format | Article |
| id | doaj-art-b5a2e03f8a34421f8b6537b3e59b131d |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-b5a2e03f8a34421f8b6537b3e59b131d2025-08-20T03:36:11ZengMDPI AGBuildings2075-53092025-07-011514253410.3390/buildings15142534Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC FramesLuchuan Ding0Xiaodi Dai1Yiping Gan2Yihua Zeng3College of Civil Engineering, Tongji University, Shanghai 200092, ChinaDepartment of Structural Engineering and Building Materials, Ghent University, Technologiepark Zwijnaarde 60, 9052 Ghent, BelgiumStructural Engineering Laboratory, Institute of Civil Engineering, Putian University, Putian 351100, ChinaSchool of Civil Engineering, Southeast Univeristy, Nanjing 211189, ChinaThe progressive collapse performance of reinforced concrete (RC) building structures has been extensively investigated using the alternate load path method. However, most studies have focused on newly designed structures, with limited attention given to existing buildings. Since progressive collapse can occur at any point during a structure’s service life and at various locations within the structural system, this study examines the progressive collapse behavior of deteriorated RC frames subjected to simulated reinforcement corrosion. This paper presents an investigation into the system-level progressive collapse responses of deteriorated RC frames, which extends the current state of the art in this field. The influence of different material deteriorations, different corrosion locations, different column removal scenarios, and dynamic effects on structural response is explored. According to the results obtained in this research, a significant reduction in progressive collapse resistance can be resulted in with increasing corrosion levels. Notably, only reinforcement corrosion in the beams located directly above the removed column (i.e., within the directly affected part) for the investigated RC frame had a substantial impact on structural performance. In contrast, corrosion in other regions and concrete deterioration exhibited minimal influence in this work. An increased number of corroded floors further reduced collapse resistance. Dynamic progressive collapse resistance was found to be considerably lower than its static counterpart and decreased at a slightly faster rate as corrosion progressed. Additionally, the energy-based method was shown to provide a reasonable approximation of the maximum dynamic responses at different corrosion levels, offering a computationally efficient alternative to full dynamic analysis.https://www.mdpi.com/2075-5309/15/14/2534progressive collapsereinforcement corrosionreinforced concretecolumn removal scenariodynamic effect |
| spellingShingle | Luchuan Ding Xiaodi Dai Yiping Gan Yihua Zeng Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames Buildings progressive collapse reinforcement corrosion reinforced concrete column removal scenario dynamic effect |
| title | Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames |
| title_full | Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames |
| title_fullStr | Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames |
| title_full_unstemmed | Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames |
| title_short | Impact of Reinforcement Corrosion on Progressive Collapse Behavior of Multi-Story RC Frames |
| title_sort | impact of reinforcement corrosion on progressive collapse behavior of multi story rc frames |
| topic | progressive collapse reinforcement corrosion reinforced concrete column removal scenario dynamic effect |
| url | https://www.mdpi.com/2075-5309/15/14/2534 |
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