Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading
In this paper, static and dynamic experiments on reinforced concrete beam-column frames under single-column-removal scenario applying a multipoint loading method were conducted. One of the objectives was to investigate structural behavior compared with the single-point loading method, which has been...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/151403 |
| _version_ | 1811678767931719680 |
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| author | Pham, Anh Tuan Tan, Kang Hai |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Pham, Anh Tuan Tan, Kang Hai |
| author_sort | Pham, Anh Tuan |
| collection | NTU |
| description | In this paper, static and dynamic experiments on reinforced concrete beam-column frames under single-column-removal scenario applying a multipoint loading method were conducted. One of the objectives was to investigate structural behavior compared with the single-point loading method, which has been popularly used in previous studies. By equally applying point loads at four locations of the double-span beam structure, the test setup successfully simulated the uniformly distributed loading condition, which is generally applicable for gravity loads in practice. Compared with the previously conducted static tests based on concentrated loading method, structural response from the static tests under multipoint loading condition differed not only on load-bearing capacity but also on failure sequence and displacement profile. On the basis of the test results, the analytical relationship between behaviors of the two loading methods was developed and verified. Compared with the static tests, the dynamic tests highlighted dynamic effects created by the column loss event and confirmed the structural behavior and failure modes observed in the static environment. The dynamic tests also verified the correctness and conservatism of the dynamic assessment framework using a previously proposed energy-based approach. Most important, both the static and the dynamic tests of structures under distributed loads showed less development of catenary action against progressive collapse compared with concentrated loading tests. |
| first_indexed | 2024-10-01T02:58:30Z |
| format | Journal Article |
| id | ntu-10356/151403 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:58:30Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1514032021-06-23T09:28:22Z Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading Pham, Anh Tuan Tan, Kang Hai School of Civil and Environmental Engineering Engineering::Civil engineering Reinforced Concrete Progressive Collapse In this paper, static and dynamic experiments on reinforced concrete beam-column frames under single-column-removal scenario applying a multipoint loading method were conducted. One of the objectives was to investigate structural behavior compared with the single-point loading method, which has been popularly used in previous studies. By equally applying point loads at four locations of the double-span beam structure, the test setup successfully simulated the uniformly distributed loading condition, which is generally applicable for gravity loads in practice. Compared with the previously conducted static tests based on concentrated loading method, structural response from the static tests under multipoint loading condition differed not only on load-bearing capacity but also on failure sequence and displacement profile. On the basis of the test results, the analytical relationship between behaviors of the two loading methods was developed and verified. Compared with the static tests, the dynamic tests highlighted dynamic effects created by the column loss event and confirmed the structural behavior and failure modes observed in the static environment. The dynamic tests also verified the correctness and conservatism of the dynamic assessment framework using a previously proposed energy-based approach. Most important, both the static and the dynamic tests of structures under distributed loads showed less development of catenary action against progressive collapse compared with concentrated loading tests. Ministry of Home Affairs This study was financially supported by the research grant GPC: MHA 191/9/1/345 provided by Ministry of Home Affairs, Singapore, as well as from the Grant 107.01-2018.01 provided by National Foundation For Science and Technology Development (NAFOSTED), Vietnam. The authors greatly appreciate the financial supports by both organizations. 2021-06-23T09:28:22Z 2021-06-23T09:28:22Z 2019 Journal Article Pham, A. T. & Tan, K. H. (2019). Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading. Journal of Structural Engineering, 145(1), 04018235-. https://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002214 0733-9445 https://hdl.handle.net/10356/151403 10.1061/(ASCE)ST.1943-541X.0002214 2-s2.0-85056423962 1 145 04018235 en MHA 191/9/1/345 Journal of Structural Engineering © 2018 American Society of Civil Engineers. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Reinforced Concrete Progressive Collapse Pham, Anh Tuan Tan, Kang Hai Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title | Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title_full | Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title_fullStr | Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title_full_unstemmed | Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title_short | Static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| title_sort | static and dynamic responses of reinforced concrete structures under sudden column removal scenario subjected to distributed loading |
| topic | Engineering::Civil engineering Reinforced Concrete Progressive Collapse |
| url | https://hdl.handle.net/10356/151403 |
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