Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Skjuvförbindare i samverkansbjälklag mellan trä och betong
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
2018 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Shear connectors in composite action flooring between wood and concrete (English)
Abstract [sv]

Intresset för att bygga med trä ökar stadigt, detta leder till utmaningar när trä ska ersätta de traditionella materialen i konstruktioner. Ofta har trä inte setts som ett tillräckligt starkt material eller ens som alternativ för exempelvis bjälklag med större spännvidder. I detta examensarbete undersöks huruvida ett samverkansbjälklag av trä och betong kan användas vid längre spännvidder samt hur egenskaperna för kopplingarna mellan träet och betongen påverkas på kort och lång sikt.

För att undersöka dessa bjälklag har sex olika konstruktioner analyserats vilka innefattar både KL-träskivor samt limträbalkar. Som koppling mellan träet och betongen har skjuvförbindare som är anpassade till samverkansbjälklag och finns tillgängliga från leverantörer i Europa använts. De skjuvförbindare som analyserats är:

  • Würth FT-förbindare med skruv Assy plus VG
  • SFS Intec VB skruv
  • Grovnot

Samverkansbjälklagen har beräknats med hjälp av γ-metoden från Eurokod 5 samt analyserats med hjälp av finita element-metoder. Vid finita element-analyserna har RFEM från Dlubal använts och bjälklagen modellerats upp. Utdatan från beräkningarna har sedan kontrollerats med kraven från Eurokod 5 och svenska nationella val enligt EKS.

Studien visar att samverkansbjälklag mellan trä och betong fungerar bra och är lämpligt för längre spännvidder, de mekaniska skjuvförbindarna som analyserats klarar kraven.

Abstract [en]

The interest in wood construction is increasing steadily, this leads to several challenges when wood is to replace the traditional materials used in different constructions. Traditionally wood has been considered as to weak and often not even an alternative for floors with larger spans. This thesis examines whether timber concrete composite flooring or TCC-flooring can be used with larger spans and how the connections between the two materials works at short and long term.

To examine this, six different floors has been analysed which includes both CLT and glulam beams. The shear connectors used in the construction were chosen on two bases, it´s main purpose should be to use in TCC-flooring and that it had to be made in Europe.

The following connectors were used:

  • Würth FT-connector with screw Assy plus VG
  • SFS Intec VB screw
  • Notched connection

To analyse the TCC-floor the γ-method from Eurocode 5 was applied and calculations was also made using finite element-methods. The finite elements-analysis were made using a software from Dlubal called RFEM and the different constructions were modelled. The results from both calculations were then compared and checked according to the demands made by Eurocode 5 and the Swedish national annex, EKS.

The study shows that composite action flooring between timber and concrete works well and is suitable for longer spans, the mechanical shear connectors analysed meets the demand.

Place, publisher, year, edition, pages
2018. , p. 54
Series
TRITA-ABE-MBT ; 1873
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-231878OAI: oai:DiVA.org:kth-231878DiVA, id: diva2:1230557
External cooperation
Byggnadstekniska byrån AB
Subject / course
Mechanical Design
Educational program
Bachelor of Science in Engineering - Constructional Engineering and Design
Supervisors
Examiners
Available from: 2018-07-04 Created: 2018-07-03 Last updated: 2018-07-04Bibliographically approved

Open Access in DiVA

Skjuvförbindare i samverkansbjälklag mellan trä och betong(2559 kB)1 downloads
File information
File name FULLTEXT01.pdfFile size 2559 kBChecksum SHA-512
797e9d5e2687ce372f3d100666a1df9c0475260bd32e7ff412d06da48056e3473682c13a1f1d8e326b77aad0bd7411a30730643ed4570559b5ff87089435fb10
Type fulltextMimetype application/pdf

By organisation
Building Technology and Design
Building Technologies

Search outside of DiVA

GoogleGoogle Scholar
Total: 1 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf