Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment
The authors’ companion paper presented the observations and results from two one-forth scale composite beam-slab systems tested in fire. This paper introduces the numerical assessment based on these experimental results. A non-linear finite element model is developed using ABQUS/Explicit to simulate...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96922 http://hdl.handle.net/10220/11884 |
| _version_ | 1811682308088922112 |
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| author | Nguyen, Tuan Trung Tan, Kang Hai |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Nguyen, Tuan Trung Tan, Kang Hai |
| author_sort | Nguyen, Tuan Trung |
| collection | NTU |
| description | The authors’ companion paper presented the observations and results from two one-forth scale composite beam-slab systems tested in fire. This paper introduces the numerical assessment based on these experimental results. A non-linear finite element model is developed using ABQUS/Explicit to simulate the specimen behaviour. Material properties at elevated temperatures are assumed to vary according to EN 1994-1-2 (2005). The FE model was first validated with the
test results, and then was used to examine the effect of unprotected interior beams on tensile membrane action. It is found that the numerical predictions agree well with the test results. The presence of interior beams significantly affects the magnitude as well as the distribution of stress of the slab elements, i.e. mesh reinforcement and concrete slab. The part with maximum tensile force is not necessarily at the slab centre. It may be part of the concrete slab above the edge beams. Shortcomings of the numerical model in predicting the failure modes are indicated. |
| first_indexed | 2024-10-01T03:54:46Z |
| format | Conference Paper |
| id | ntu-10356/96922 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:54:46Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/969222019-12-06T19:36:40Z Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment Nguyen, Tuan Trung Tan, Kang Hai School of Civil and Environmental Engineering Applications of Structural Fire Engineering (2013) The authors’ companion paper presented the observations and results from two one-forth scale composite beam-slab systems tested in fire. This paper introduces the numerical assessment based on these experimental results. A non-linear finite element model is developed using ABQUS/Explicit to simulate the specimen behaviour. Material properties at elevated temperatures are assumed to vary according to EN 1994-1-2 (2005). The FE model was first validated with the test results, and then was used to examine the effect of unprotected interior beams on tensile membrane action. It is found that the numerical predictions agree well with the test results. The presence of interior beams significantly affects the magnitude as well as the distribution of stress of the slab elements, i.e. mesh reinforcement and concrete slab. The part with maximum tensile force is not necessarily at the slab centre. It may be part of the concrete slab above the edge beams. Shortcomings of the numerical model in predicting the failure modes are indicated. 2013-07-18T06:56:23Z 2019-12-06T19:36:40Z 2013-07-18T06:56:23Z 2019-12-06T19:36:40Z 2013 2013 Conference Paper Nguyen, T.-T., & Tan, K.-H. (2013). Effect of Unprotected Interior Beams on Membrane Behaviour of Composite Floor Systems in Fire. II: Numerical Assessment. Applications of Structural Fire Engineering, 19-20 April 2013. https://hdl.handle.net/10356/96922 http://hdl.handle.net/10220/11884 172474 en © 2013 European Cooperation in the field of Scientific and Technical Research Office. |
| spellingShingle | Nguyen, Tuan Trung Tan, Kang Hai Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title | Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title_full | Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title_fullStr | Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title_full_unstemmed | Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title_short | Effect of unprotected interior beams on membrane behaviour of composite floor systems in fire. II : numerical assessment |
| title_sort | effect of unprotected interior beams on membrane behaviour of composite floor systems in fire ii numerical assessment |
| url | https://hdl.handle.net/10356/96922 http://hdl.handle.net/10220/11884 |
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