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Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system
Thesis (MEng)--Stellenbosch University, 2020.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2020
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| _version_ | 1867613818710917120 |
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| access_status_str | Open Access |
| author | Fourie, Stephen Junior |
| author2 | Walls, Richard Shaun |
| author_browse | Fourie, Stephen Junior Walls, Richard Shaun |
| author_facet | Walls, Richard Shaun Fourie, Stephen Junior |
| author_sort | Fourie, Stephen Junior |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2020. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/108220 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:42:11.774Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/108220 Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system Fourie, Stephen Junior Walls, Richard Shaun Stellenbosch University. Faculty of Engineering. Dept. of Civil Engineering. Fireproofing agents Fire prevention Fire protection engineering Finite element method Thermodynamics FireSUN Building, Fireproof Fire resistant materials -- Testing UCTD Furnaces -- Design and construction Thesis (MEng)--Stellenbosch University, 2020. ENGLISH ABSTRACT: The testing of new construction materials and configurations is extremely important in order to protect property and lives. However, there are limited facilities available on the African continent for standardised fire testing. The number of students doing post-graduate studies in Fire Engineering at the University of Stellenbosch is also rapidly increasing. Many of these students require a test facility where innovative construction products can be exposed to the standard fire curve in order to obtain the standard fire rating of a new product. The main purpose of this study was to design and construct an intermediate-scale fire resistance furnace to be used by the University of Stellenbosch for research and development. The furnace developed was also utilized to test a novel building system as validation, where the influence of steel shields fixed between a composite slab’s ribs on the slab’s thermal performance was determined. A 1.2 x 1.2 x1.2m furnace was designed. The furnace was designed to be able to rotate, enabling it to be used to test floor, wall, beam and column specimens. Although the intermediate-scale furnace does not allow for full-scale tests to be conducted, the furnace serves as a sufficient enclosure to do fire tests during research and development. The results obtained from the furnace will be conservative, as long as deflection, shrinkage and connection behaviour is neglected. Two experimental tests were conducted on composite slabs in the furnace. Both experimental specimens consisted of VP-115 steel decking profiles filled with 30 MPa normal weight concrete. The only difference between the first and second test was the steel shields that were fixed between the bottom of the ribs of the composite slab in the second test. The aim of the experimental study was (a) to utilise the furnace developed in this work for an industry-relevant construction system, (b) to calibrate the furnace through this process and identify potential operational issues, (c) to provide data for validating numerical models, and (d) to carry out a novel investigation on the influence of steel shields between ribs on composite slab’s thermal performance. To determine if an analysis methodology and model developed in Abaqus can be used to test the composite slabs with, and without, steel shields attached between the ribs at the bottom of the slab, two preliminary validation studies were performed. A parametric investigation was used to predict the influence of various parameters on the fire resistance of composite slabs, both with and without steel shields attached between the ribs. The results indicate that the inclusion of the steel shields leads to a reduction in the unexposed surface temperature by between 16% and 41%. This in turn lead to a 19.35% reduction in concrete use, which reduced the dead load and ultimately resulted in a more economical design. The influence of the decking profile and distance between the troughs on the thermal performance of the composite slab with steel shields attached was also determined by replacing the VP115 steel profile with a VP50 and VP200 profile. The results indicated that a larger span between troughs, forming a cavity below the deck, together with the increase in concrete volume, results in an improved thermal performance of the slab. AFRIKAANSE OPSOMMING: Die toets van nuwe konstruksie materiale en konfigurasies is uiters belangrik om eiendom en lewens te beskerm. Daar is egter beperkte fasiliteite op die vasteland van Afrika beskikbaar vir gestandaardiseerde brandtoetsing. Die aantal studente wat nagraads studeer in Branding ingenieurswese by Stellenbosch Universiteit neem ook drasties toe. Baie van hierdie studente benodig ’n toets fasiliteit waar innoverende konstruksie produkte aan die standaard vuur kurwe blootgestel kan word om die brandwaardigheid van die nuwe produk te verkry. Die hoofdoel van hierdie studie was die ontwerp en konstruksie van ’n tussenskaalse brandweerstand oond wat deur Stellenbosch Universiteit vir navorsings- en ontwikkelingswerk gebruik kan word. Die oond wat ontwikkel is, is ook gebruik om ’n nuwe geboustelsel as validering te toets, waar die invloed van staalskerms wat tussen die ribbes van ’n saamgestelde blad op die termiese gedrag bepaal is. ’N Oond van 1,2 x 1,2 x 1,2m is ontwerp. Die oond is ontwerp om te kan roteer, sodat dit gebruik kan word om monsters van ’n vloer, muur, balk en kolom te toets. Alhoewel die oond grootte nie toelaat dat volskaalse toetse uitgevoer kan word nie, dien die oond as ’n voldoende omhulsel om brandtoetse tydens navorsing en ontwikkelingswerk te doen. Die resultate wat uit die oond verkry word, sal konserwatief wees, solank defleksie, inkrimping en verbindingsgedrag geïgnoreer word. Twee eksperimentele toetse is op saamgestelde blaaie in die oond uitgevoer. Albei eksperimentele monsters bestaan uit VP-115 staaldekprofiele gevul met 30 MPa normale gewig beton. Die enigste verskil tussen die eerste en tweede toets was die staalskerms wat in die tweede toets tussen die ribbes van die saamgestelde blad vasgemaak is. Die doel van die eksperimentele studie was (a) om die oond wat in hierdie werk ontwikkel is te gebruik vir ’n konstruksiestelsel wat relevant is vir die bedryf, (b) om die oond deur hierdie proses te kalibreer en potensiële probleme te identifiseer, (c) om data te verskaf vir die validasie van numeriese modelle, en (d) om ’n ondersoek op die invloed van staalskerms tussen ribbes op die saamgestelde blad se termiese gedrag. Om vas te stel of ’n ontledingsmetodologie en model ontwikkel in Abaqus gebruik kan word om die saamgestelde blaaie met en sonder staalskerms tussen die ribbes onder aan die plaat vas te toets, is twee voorlopige valideringstudies uitgevoer. Die parametriese ondersoek is gebruik om die invloed van verskillende parameters op die brandweerstand van saamgestelde blaaie te voorspel, beide met en sonder staalskerms tussen die ribbes. Die resultate het aangedui dat die insluiting van die staalskerms tot ’n verlaging lei van die boonste vlak van die blad wat nie direk aan die hitte vrygestel is nie. Dit lei ’n vermindering van betongebruik van 19,35%, wat die dooie las verminder het en uiteindelik ’n meer ekonomiese ontwerp tot gevolg gehad het. Die invloed van die dekprofiel en die afstand tussen die trogge op die termiese werking van die saamgestelde plaat met staalskerms is aangeheg deur die VP115-staalprofiel te vervang met ’n VP50- en VP200- profiele. Die resultate het aangedui dat ’n groter reikwydte tussen trogies, wat ’n holte onder die dek vorm, tesame met die toename in betonvolume, ’n beter termiese werking van die plaat tot gevolg gehad het. Masters 2020-02-27T13:29:34Z 2020-04-28T12:26:04Z 2020-02-27T13:29:34Z 2020-04-28T12:26:04Z 2020-03 Thesis http://hdl.handle.net/10019.1/108220 en Stellenbosch University xx, 111, [41] leaves : illustrations (some color) application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Fireproofing agents Fire prevention Fire protection engineering Finite element method Thermodynamics FireSUN Building, Fireproof Fire resistant materials -- Testing UCTD Furnaces -- Design and construction Fourie, Stephen Junior Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title | Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title_full | Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title_fullStr | Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title_full_unstemmed | Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title_short | Design and construction of an intermediate-scale fire resistance furnace, with commissioning and validation on a novel composite floor system |
| title_sort | design and construction of an intermediate scale fire resistance furnace with commissioning and validation on a novel composite floor system |
| topic | Fireproofing agents Fire prevention Fire protection engineering Finite element method Thermodynamics FireSUN Building, Fireproof Fire resistant materials -- Testing UCTD Furnaces -- Design and construction |
| url | http://hdl.handle.net/10019.1/108220 |
| work_keys_str_mv | AT fouriestephenjunior designandconstructionofanintermediatescalefireresistancefurnacewithcommissioningandvalidationonanovelcompositefloorsystem |