Investigation into resilience of precast concrete floors against progressive collapse
The casualties and economic loss in historic events have revealed that progressive collapse performance of buildings has to be evaluated in structural design to prevent such disastrous events. Integrity and resilience are important characteristics for buildings to prevent total collapse or dispropor...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/105450 http://hdl.handle.net/10220/48690 http://dx.doi.org/10.14359/51710878 |
| _version_ | 1811678070713614336 |
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| author | Qian, Kai Li, Bing |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Qian, Kai Li, Bing |
| author_sort | Qian, Kai |
| collection | NTU |
| description | The casualties and economic loss in historic events have revealed that progressive collapse performance of buildings has to be evaluated in structural design to prevent such disastrous events. Integrity and resilience are important characteristics for buildings to prevent total collapse or disproportionate collapse once an unpredictable terrorism event unfortunately occurs. Compared to the extensive studies on behavior of cast-in-place reinforced concrete (RC) buildings for progressive collapse resistance, there is less research on precast concrete (PC) buildings to mitigate progressive collapse. Thus, in this study, three one-story, two-bay largescale frame-floor subassemblies (one RC and two PC) are tested under pushdown loading regime to investigate the effect of PC floor units and transverse beams on progressive collapse resilience of PC moment-resisting frames. It is found that the PC beams and slab systems could provide substantial compressive arch action and compressive membrane action, similar to the cast-in-place RC buildings. However, as PC slabs are discontinuous, insignificant tensile membrane action is able to develop in PC slab systems and the ultimate load capacity in enormous deformation stage is mainly attributed to the catenary action developed in PC beams. |
| first_indexed | 2024-10-01T02:47:25Z |
| format | Journal Article |
| id | ntu-10356/105450 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:47:25Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1054502019-12-06T21:51:31Z Investigation into resilience of precast concrete floors against progressive collapse Qian, Kai Li, Bing School of Civil and Environmental Engineering Load-Resisting Mechanism Monolithic Connection DRNTU::Engineering::Civil engineering The casualties and economic loss in historic events have revealed that progressive collapse performance of buildings has to be evaluated in structural design to prevent such disastrous events. Integrity and resilience are important characteristics for buildings to prevent total collapse or disproportionate collapse once an unpredictable terrorism event unfortunately occurs. Compared to the extensive studies on behavior of cast-in-place reinforced concrete (RC) buildings for progressive collapse resistance, there is less research on precast concrete (PC) buildings to mitigate progressive collapse. Thus, in this study, three one-story, two-bay largescale frame-floor subassemblies (one RC and two PC) are tested under pushdown loading regime to investigate the effect of PC floor units and transverse beams on progressive collapse resilience of PC moment-resisting frames. It is found that the PC beams and slab systems could provide substantial compressive arch action and compressive membrane action, similar to the cast-in-place RC buildings. However, as PC slabs are discontinuous, insignificant tensile membrane action is able to develop in PC slab systems and the ultimate load capacity in enormous deformation stage is mainly attributed to the catenary action developed in PC beams. Published version 2019-06-12T09:04:18Z 2019-12-06T21:51:31Z 2019-06-12T09:04:18Z 2019-12-06T21:51:31Z 2019 Journal Article Qian, K., & Li, B. (2019). Investigation into resilience of precast concrete floors against progressive collapse. ACI Structural Journal, 116(2), 171-182. doi:10.14359/51710878 0889-3241 https://hdl.handle.net/10356/105450 http://hdl.handle.net/10220/48690 http://dx.doi.org/10.14359/51710878 en ACI Structural Journal © 2019 American Concrete Institute. All rights reserved. This paper was published in ACI Structural Journal and is made available with permission of American Concrete Institute. 12 p. application/pdf |
| spellingShingle | Load-Resisting Mechanism Monolithic Connection DRNTU::Engineering::Civil engineering Qian, Kai Li, Bing Investigation into resilience of precast concrete floors against progressive collapse |
| title | Investigation into resilience of precast concrete floors against progressive collapse |
| title_full | Investigation into resilience of precast concrete floors against progressive collapse |
| title_fullStr | Investigation into resilience of precast concrete floors against progressive collapse |
| title_full_unstemmed | Investigation into resilience of precast concrete floors against progressive collapse |
| title_short | Investigation into resilience of precast concrete floors against progressive collapse |
| title_sort | investigation into resilience of precast concrete floors against progressive collapse |
| topic | Load-Resisting Mechanism Monolithic Connection DRNTU::Engineering::Civil engineering |
| url | https://hdl.handle.net/10356/105450 http://hdl.handle.net/10220/48690 http://dx.doi.org/10.14359/51710878 |
| work_keys_str_mv | AT qiankai investigationintoresilienceofprecastconcretefloorsagainstprogressivecollapse AT libing investigationintoresilienceofprecastconcretefloorsagainstprogressivecollapse |