Structural behavior of continuous shear connectors in thin UHPC-panels under shear and transverse loading

Thomas Lechner, Oliver Fischer, Günter Seidl

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultra-High Performance Concrete (UHPC) is a high-tech material allowing the production of extreme thin but high-strength elements. The application of UHPC for common concrete elements, e.g. wall panels and beams, will reduce the thickness and thus the element weight significantly. Manufacturing of such UHPC-elements will predominantly take place in factories. Consequently, joining techniques for precast UHPC-components have to be developed. For a maximum of sustainability the connection should offer a simple possibility to assemble, disassemble, recycle or re-assemble UHPC-elements. With continuous shear connectors a coupling of thin precast UHPC-panels to other structural members on site by means of welding is possible. Contradictory to other connection techniques for precast elements continuous shear connectors, which are also known as composite dowels, can be disconnected without difficulty. Experimental investigations have been carried out at the Chair of Concrete and Masonry Structures of the Technische Universität München (TUM) to determine the structural behavior of composite dowels with a clothoidal shape subjected to shear forces resulting from in-plane stresses. In addition, experiments have been conducted to study the load-bearing capacity and structural behavior of composite dowels in thin UHPC-Panels under transverse loading. The results confirmed that composite dowels can be used to connect thin UHPC-panels, since they possess the required ductility and a high load bearing capacity at the same time.

Original languageEnglish
Title of host publicationISEC 2013 - 7th International Structural Engineering and Construction Conference
Subtitle of host publicationNew Developments in Structural Engineering and Construction
EditorsSiamak Yazdani, Amarjit Singh
PublisherResearch Publishing Services
Pages373-378
Number of pages6
ISBN (Electronic)9810753551, 9789810753559
DOIs
StatePublished - 2013
Event7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013 - Honolulu, United States
Duration: 18 Jun 201323 Jun 2013

Publication series

NameISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction

Conference

Conference7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013
Country/TerritoryUnited States
CityHonolulu
Period18/06/1323/06/13

Keywords

  • Composite construction
  • Composite dowel
  • Continuous shear connector
  • MCL-strip
  • UHPC-panels
  • Ultra-high performance concrete

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