Minimiarmering enligt Eurokod : En jämförelse mellan EKS 9 och EKS 10

Detta är en Uppsats för yrkesexamina på grundnivå från Uppsala universitet/Byggteknik; Uppsala universitet/Byggteknik

Sammanfattning:

This thesis deals with the minimum reinforcement inconcrete structures and the changes made in theregulations on this with the introduction of EKS 10. EKS10, which was introduced January 1, 2016, is theswedish national annex to the common Eurocode. Theintroduction of EKS 10 has meant that more chaptersfrom Eurocode have been adapted to swedishconditions and that the requirements for minimumreinforcement has been mitigated.As part of the thesis a calculation template has beencreated in Microsoft Excel designed to facilitate thecalculation of minimum reinforcement forByggnadstekniska byrån in Stockholm. In addition tocreating the template, common concrete sections havebeen analyzed with respect to the reinforcementquantities and the economy.The results show that the minimum amount ofreinforcement has been reduced in all of the crosssectionexamined in this thesis. The amendedprovisions have had the consequence that the minimumquantity of rienforcement in respect to reduction ofcrack width in beams and slabs have been decreased bybetween 10 and 32 percent. For walls the minimumamount of vertical reinforcement fallen by 50 percent inslender walls and by 100 percent non slender walls,while the minimum horizontal rienforcement decreasedby 75 and 100 percent respectively.According to the calculations done for a supposedexample floor, this causes a potential reduction inmaterial costs of up to 65 or 118 SEK per square meter,depending on whether or not the walls are regarded asslender.

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