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Academic literature on the topic 'Brandskydd av stålkonstruktioner'
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Dissertations / Theses on the topic "Brandskydd av stålkonstruktioner"
Elf, Adam, and Kevin Cederth. "Brandskydd av stålkonstruktioner : Lathund för brandskyddsdimensionering av stålprofiler." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-24228.
Full textDavid, Amanda, and Gabriel Altinsu. "Branddimensionering av stålkonstruktioner : Kostnadseffektivisering av brandskydd i industrihallar av stål." Thesis, KTH, Byggteknik och design, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302710.
Full textSteel is a commonly used construction material. It is a material where small dimensions can be used to achieve large spans and free spaces. Steel softens however when encountering high temperatures which can cause severe damage such as collapses. It is therefore with greatest importance that fire protection is designed correctly. This bachelor thesis contains a study that compares different fire protections for industrialbuildings in steel, and the purpose of the study was to find the most economic efficient fire protection. This study has been made in collaboration with Blixthuset Stålhallar where one of their projects needed fire protection to be designed. The fire protections being compared was over dimensioning steel column VKR 250X250X10, using fire gips, fire insulation and fire painting. Initially, the load effect in room temperature was designed according to the Eurocodes. Thereafter, the load effect in the fire load case was designed, followed by finding the critical steel temperature. When comparing the two load effects, the utilization could be recognized and consequently, the requisite of fire protection could be identified. When the amount of fire protection needed was determined, offers from different companies could be taken in for comparison. The study showed that oversizing is an inefficient solution of fire protecting the steel columns since even the thickest steel column VKR 400X400X16 was not thick enough to achieve the fire requirement R60. Despite oversizing the steel columns, other fire protection would still be needed. Furthermore, the study showed that the most expensive fire protection wasassembly of fire discs, followed by fire painting. The cheapest alternative was fire insulation.
Krohn, Matilda. "Brandskydd av stålkonstruktioner : En jämförelse mellan brandskyddsmålning och ökad dimensionering." Thesis, Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44544.
Full textEl, Mourabit Samir, and Mattias Forsberg. "BRANDDIMENSIONERING AV STÅL : En jämförelse av dimensioneringsmetoder." Thesis, Uppsala universitet, Byggteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226142.
Full textWhen the construction industry phased out the earlier national construction standards a few years ago and replaced them with the European standards, the rules for fire safety changed. The new design process is complex and not simple to get a full picture of. For that purpose this thesis is written for Sweco Structures AB. The main part of this thesis comprises of descriptions and explanations of the existing design methodologies. To better understand the methods in Eurocode, the first chapter contains basic theory of how fires behave and how steel responds to higher temperatures. The following chapters address the simplified calculation methods and their equations. The report also includes a case study of a steel framed industrial building where a critical diagonal was analyzed. The analysis showed that the method called critical temperature method is not applicable for components where instability is taken into account. Those components should instead be calculated using the equations given in Eurocode. Therefore the critical temperature method has a very limited use. The analysis also showed that the cost of increasing the dimension of the diagonal was about the same as the cost of coating it with fire resisting paint, but this is very dependent on the situation. The report concludes with discussion and comparison of results.
Lindqvist, Elias, and Sebastian Mäcs. "Värmestrålningssköldar som brandskydd av stålelement : En teoretisk undersökning." Thesis, Uppsala universitet, Byggteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-257580.
Full textIn fire tests performed in Australia meant to examine the effectivity of sprinkler systems, a few simple heat radiation shields made of highly reflective materials were also tested. In the trials three identical steel columns were exposed to fire in an office building. One of those columns were shielded with a galvanized steel sheet, the second with an aluminized steel sheet while the third was left unprotected. Data from the trial shows that the temperature of the steel columns was measured to 580°C and 427°C for the protected columns and 1064°C for the unprotected. Despite the positive results hardly any further studies has been made on this subject, which have motivated this report. The main goal of this report is to, with the help of theoretical experiments, prove that heat radiation shields can be used as a fire protection system for steel profiles. By implementing the underlying theory of heat transfer into a program capable of calculating a certain material’s ability to protect a steel profile from radiant heat, the temperature of the profile could be estimated. Results show that in order to sufficiently protect a VKR 200x200x10 millimeter steel profile exposed to 30 minutes of fire, a 1 millimeter heat radiation shield made out of a material with no less than 80 percent heat reflectivity has to be used. The material must also contain its reflectivity during the entire period, have a high enough density and not melt at a temperature lower than 1000°C.