Numerical study on innovative demountable shear connectors subject to combined shear and axial tension

Ee Loon Tan, Harshad Varsani

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[Steel-concrete composite construction is a widely-spread construction technique due to the ability of the elements to complement each other's strengths. Traditionally, the steel and concrete components have been fused together by means of headed studs welded to the steel beam and embedded in the concrete. Although the primary goal of shear connectors is to transfer shear forces between the steel and concrete components, some usage cases require the shear connectors to resist uplift (tensile) forces in addition to shear forces. Furthermore, increasing awareness of sustainability has brought forward the need for demountable structures for ease of reuse of the components once the structure reaches its end of design life since welded studs do not allow easy separation. Therefore, recent research has experimentally investigated the performance of innovative demountable shear connectors under combined shear and axial tension loading. These tests have shown a significant reduction in shear capacity in the presence of tensile loading. In this paper, numerical models are developed using ABAQUS to investigate the behaviour of three types of existing and new innovative demountable shear connectors under combined loading. Results from an experimental investigation on these types of shear connectors were used to verify the model. It is found that if failure is governed by the failure of the shear connector material, the shear-tension interaction is elliptical, and that if failure is governed by concrete strength, the shear-tension relationship is linear.]]
Original languageEnglish
Title of host publicationAbstract Proceedings of the 15th International Symposium on Structural Engineering (ISSE-15), 24-27 October 2018, Hangzhou, China
PublisherZhejiang University Press
Pages441-441
Number of pages1
ISBN (Print)9787308186513
Publication statusPublished - 2018
EventInternational Symposium on Structural Engineering -
Duration: 1 Jan 2018 → …

Conference

ConferenceInternational Symposium on Structural Engineering
Period1/01/18 → …

Keywords

  • composite construction
  • concrete beams
  • steel, structural
  • shear (mechanics)
  • shear connectors
  • axial loads
  • numerical analysis

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