Failure behaviour of a fire protected steel element
In the present article the failure behaviour of a steel, beam type element supported against fire by protection boards, is studied. Three – dimensional, coupled temperature - displacement, non-linear finite element analysis models have been developed to simulate the unprotected and protected structu...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2018-09-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2118 |
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| _version_ | 1841562875606335488 |
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| author | Georgios Drosopoulos Siphesihle Motsa |
| author_facet | Georgios Drosopoulos Siphesihle Motsa |
| author_sort | Georgios Drosopoulos |
| collection | DOAJ |
| description | In the present article the failure behaviour of a steel, beam type element supported against fire by protection boards, is studied. Three – dimensional, coupled temperature - displacement, non-linear finite element analysis models have been developed to simulate the unprotected and protected structure. A simple modelling approach is proposed for the investigation of the influence of the gradual failure of fire protection at elevated temperatures, on the structural performance of the system, under thermal and mechanical loads. Yielding of steel is depicted and force – displacement diagrams are used to evaluate the ultimate behaviour of the unprotected and protected models. It is shown that for the protected structure, yielding is less severe and the time period up to maximum strength is significantly longer. Eventually, is depicted how failure of the fire protection leads to a gradual reduction of the response, in fire conditions. |
| format | Article |
| id | doaj-art-bd463f85f4e6426191a81fb804928cf9 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2018-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-bd463f85f4e6426191a81fb804928cf92025-01-03T00:40:23ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932018-09-011246Failure behaviour of a fire protected steel elementGeorgios Drosopoulos0Siphesihle Motsa1Structural Engineering and Computational Mechanics Group, Discipline of Civil Engineering, University of KwaZulu-Natal, Durban, South AfricaUniversity of KwaZulu-Natal, Durban, South AfricaIn the present article the failure behaviour of a steel, beam type element supported against fire by protection boards, is studied. Three – dimensional, coupled temperature - displacement, non-linear finite element analysis models have been developed to simulate the unprotected and protected structure. A simple modelling approach is proposed for the investigation of the influence of the gradual failure of fire protection at elevated temperatures, on the structural performance of the system, under thermal and mechanical loads. Yielding of steel is depicted and force – displacement diagrams are used to evaluate the ultimate behaviour of the unprotected and protected models. It is shown that for the protected structure, yielding is less severe and the time period up to maximum strength is significantly longer. Eventually, is depicted how failure of the fire protection leads to a gradual reduction of the response, in fire conditions.https://www.fracturae.com/index.php/fis/article/view/2118Steel structuresFireProtectionCoupled analysisFinite element analysis |
| spellingShingle | Georgios Drosopoulos Siphesihle Motsa Failure behaviour of a fire protected steel element Fracture and Structural Integrity Steel structures Fire Protection Coupled analysis Finite element analysis |
| title | Failure behaviour of a fire protected steel element |
| title_full | Failure behaviour of a fire protected steel element |
| title_fullStr | Failure behaviour of a fire protected steel element |
| title_full_unstemmed | Failure behaviour of a fire protected steel element |
| title_short | Failure behaviour of a fire protected steel element |
| title_sort | failure behaviour of a fire protected steel element |
| topic | Steel structures Fire Protection Coupled analysis Finite element analysis |
| url | https://www.fracturae.com/index.php/fis/article/view/2118 |
| work_keys_str_mv | AT georgiosdrosopoulos failurebehaviourofafireprotectedsteelelement AT siphesihlemotsa failurebehaviourofafireprotectedsteelelement |