Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels
Prestressed concrete (PSC) constructions are widely used to build civil infrastructures such as nuclear containment vessels, super-span bridges, and mega-height high-rise buildings due to their excellent load and crack-resisting capacities. However, extreme loading scenarios such as blast and impact...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/106160 http://hdl.handle.net/10220/23946 http://dx.doi.org/10.1016/j.ijimpeng.2014.05.005 |
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| author | Yi, Na-Hyun Lee, Sang-Won Kim, Jong-Wook Kim, Jang-Ho Jay |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yi, Na-Hyun Lee, Sang-Won Kim, Jong-Wook Kim, Jang-Ho Jay |
| author_sort | Yi, Na-Hyun |
| collection | NTU |
| description | Prestressed concrete (PSC) constructions are widely used to build civil infrastructures such as nuclear containment vessels, super-span bridges, and mega-height high-rise buildings due to their excellent load and crack-resisting capacities. However, extreme loading scenarios such as blast and impact on prestressed concrete (PSC) members have yet to be sufficiently studied, due to the difficulties associated with analysis of high strain rate conditions in concrete structures. Therefore, to further elucidate the impact-resistant capacity, and protective performance of PSC structures, we detail the results from impact tests carried out on reinforced concrete (RC), PSC without rebars (PS), and PSC with rebar (PSR) panels with dimensions of 1400 × 1000 × 300 mm. Using a facility in Korea, impact tests were performed using a 14 kN impactor with drop heights of 10 m, 5 m, and 4 m for preliminary tests, and 3.5 m for the main tests. From the preliminary tests, the procedure, layout, and measurement system of the main impact tests were established. The impact-resistant capacity was measured using crack patterns and damage rates, while displacement, acceleration, and residual flexural strength were also measured. From these results, it was determined that unbonded, bi-directional PSR specimens show a high-impact energy absorption capacity, well-dispersed crack pattern, and outstanding residual flexural strength capacity. Also, the test results showed that the unbonded, prestressed concrete construction method can be used to protect critical infrastructures and structures against impact loading. These results advance fundamental understanding in this area, and aid in the advancement of similar research such as protective design and numerical structural impact simulation. |
| first_indexed | 2024-10-01T05:23:46Z |
| format | Journal Article |
| id | ntu-10356/106160 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:23:46Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1061602019-12-06T22:05:36Z Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels Yi, Na-Hyun Lee, Sang-Won Kim, Jong-Wook Kim, Jang-Ho Jay School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design Prestressed concrete (PSC) constructions are widely used to build civil infrastructures such as nuclear containment vessels, super-span bridges, and mega-height high-rise buildings due to their excellent load and crack-resisting capacities. However, extreme loading scenarios such as blast and impact on prestressed concrete (PSC) members have yet to be sufficiently studied, due to the difficulties associated with analysis of high strain rate conditions in concrete structures. Therefore, to further elucidate the impact-resistant capacity, and protective performance of PSC structures, we detail the results from impact tests carried out on reinforced concrete (RC), PSC without rebars (PS), and PSC with rebar (PSR) panels with dimensions of 1400 × 1000 × 300 mm. Using a facility in Korea, impact tests were performed using a 14 kN impactor with drop heights of 10 m, 5 m, and 4 m for preliminary tests, and 3.5 m for the main tests. From the preliminary tests, the procedure, layout, and measurement system of the main impact tests were established. The impact-resistant capacity was measured using crack patterns and damage rates, while displacement, acceleration, and residual flexural strength were also measured. From these results, it was determined that unbonded, bi-directional PSR specimens show a high-impact energy absorption capacity, well-dispersed crack pattern, and outstanding residual flexural strength capacity. Also, the test results showed that the unbonded, prestressed concrete construction method can be used to protect critical infrastructures and structures against impact loading. These results advance fundamental understanding in this area, and aid in the advancement of similar research such as protective design and numerical structural impact simulation. 2014-10-01T06:51:16Z 2019-12-06T22:05:36Z 2014-10-01T06:51:16Z 2019-12-06T22:05:36Z 2014 2014 Journal Article Yi, N. H., Lee, S. W., Kim, J. W., & Kim, J. H. J. (2014). Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels. International journal of impact engineering, 72, 40-55. 0734-743X https://hdl.handle.net/10356/106160 http://hdl.handle.net/10220/23946 http://dx.doi.org/10.1016/j.ijimpeng.2014.05.005 180240 en International journal of impact engineering © 2014 Elsevier Ltd. |
| spellingShingle | DRNTU::Engineering::Civil engineering::Structures and design Yi, Na-Hyun Lee, Sang-Won Kim, Jong-Wook Kim, Jang-Ho Jay Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title | Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title_full | Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title_fullStr | Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title_full_unstemmed | Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title_short | Impact-resistant capacity and failure behavior of unbonded bi-directional PSC panels |
| title_sort | impact resistant capacity and failure behavior of unbonded bi directional psc panels |
| topic | DRNTU::Engineering::Civil engineering::Structures and design |
| url | https://hdl.handle.net/10356/106160 http://hdl.handle.net/10220/23946 http://dx.doi.org/10.1016/j.ijimpeng.2014.05.005 |
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