Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/27994
Title: | Development of an innovative type of shear connector dedicated to fully embedded steel-concrete composite columns - experimental and numerical investigations | Authors: | Chrzanowski, Maciej Odenbreit, Christoph Obiala, Renata Bogdan, Teodora Braun, Mathias DEGEE, Herve |
Issue Date: | 2018 | Source: | Polytechnic University of Valencia Congress, 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018, | Abstract: | A shear connection in steel-concrete composite columns is established in the normal case with headed shear studs. However, this type of connector has been developed for composite beams and in terms of composite columns, a wide range for an optimisation still can be identified due to the different geometries of steel profiles, concrete and reinforcement. The presented paper shows investigations on a new type of shear connector with a direct application to composite columns and with a potential for a fully automatic fabrication process. The proposed new type of shear connection is made out of reinforcement bars welded to the external surfaces of the steel profile’s flanges. The experimental campaign consisted of 12 composite push-out tests with a column section geometry. The analysed specimens included centrally embedded HEB120 steel profiles into 340x1000x450mm concrete blocks. All the tests have been categorized into 4 groups. One group per connector was defined (including group without mechanical connector). Each group had 3 identical specimens. Surface treatment conditions, reinforcement arrangement, used materials and test layout were the same in all executed tests. The acquired results showed a good performance of the proposed solutions and allowed to identify the different load-bearing behaviour. After the test execution, the specimens were opened and the failure pattern has been investigated. The testing campaign was supported by numerical simulations performed with the finite element software code Abaqus®. In the developed models, a new approach to simulate the steel-concrete bond was implemented. | Notes: | Chrzanowski, M (reprint author), Show less Univ Luxembourg, AMCSFE, RUES, FSTC, Luxembourg, Luxembourg. maciej.chrzanowski@uni.lu | Keywords: | Composite steel-concrete columns; shear connection, steel-concrete bond; mechanical shear connector; shear stresses analysis; load-slip behaviour | Document URI: | http://hdl.handle.net/1942/27994 | ISBN: | 9788490486016 | DOI: | 10.4995/ASCCS2018.2018.6970 | ISI #: | 000471004000054 | Rights: | Copyright 2018, Universitat Politècnica de València under Creative Commons | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
ASCCS Degee 2.pdf | Published version | 4.6 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.