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Failure conditions from push-out tests of a steel-concrete joint: experimental results

Peter Helincks, Wouter De Corte, Stanislav Seitl, Veerle Boel UGent and Geert De Schutter UGent (2012) Key Engineering Materials. 488-489. p.714-717
abstract
Steel-concrete joints can suffer from premature fail due to inadequate shear bond between the two surfaces. In this paper the shear bond strength between steel and self-compacting concrete (SCC) without mechanical shear connectors is evaluated through push-out tests. The test samples consist of two sandblasted steel plates (10 and 6 mm) and a concrete core, with connection between steel and concrete obtained by a 2-component epoxy resin, gritted with granulates. During the tests, the ultimate shear force is recorded as well as the slip between steel and concrete. All test members exhibited a concrete - adhesive failure, and indicate nominal shear bond stresses between 2.20 and 4.22 MPa. In addition, a substantial difference in measured shear bond stresses is found between the 6 and 10 mm steel plates, indicating unwanted secondary effects with the 6 mm plates. During testing, maximum slip values between 0.02 and 0.05 mm are recorded. In addition to the experimental tests, shear stress distribution in the epoxy concrete interface is examined by finite element analysis (FEA). In this way, a non-uniform stress distribution between steel and concrete is found with the maximum shear value about 2.5 times higher than the nominal shear stress value. The FEA combined with the experimental results provide a reasonable understanding of the shear induced failure conditions at a steel-concrete joint, and create test data for a fracture mechanics approach.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
push-out test, epoxy, stress distribution, shear bond strength, eel-concrete joint
in
Key Engineering Materials
editor
Z Tonkovic and MH Aliabadi
volume
488-489
issue title
ADVANCES IN FRACTURE AND DAMAGE MECHANICS X
pages
714 - 717
publisher
TRANS TECH PUBLICATIONS LTD
place of publication
LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
conference name
10th International Conference on Fracture and Damage Mechanics (FDM 2011)
conference location
Dubrovnik, Croatia
conference start
2011-09-19
conference end
2011-09-21
Web of Science type
Proceedings Paper
Web of Science id
000306531200175
ISSN
1013-9826
DOI
10.4028/www.scientific.net/KEM.488-489.714
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4297988
handle
http://hdl.handle.net/1854/LU-4297988
date created
2014-02-21 10:59:14
date last changed
2017-01-02 09:53:22
@inproceedings{4297988,
  abstract     = {Steel-concrete joints can suffer from premature fail due to inadequate shear bond between the two surfaces. In this paper the shear bond strength between steel and self-compacting concrete (SCC) without mechanical shear connectors is evaluated through push-out tests. The test samples consist of two sandblasted steel plates (10 and 6 mm) and a concrete core, with connection between steel and concrete obtained by a 2-component epoxy resin, gritted with granulates. During the tests, the ultimate shear force is recorded as well as the slip between steel and concrete. All test members exhibited a concrete - adhesive failure, and indicate nominal shear bond stresses between 2.20 and 4.22 MPa. In addition, a substantial difference in measured shear bond stresses is found between the 6 and 10 mm steel plates, indicating unwanted secondary effects with the 6 mm plates. During testing, maximum slip values between 0.02 and 0.05 mm are recorded. In addition to the experimental tests, shear stress distribution in the epoxy concrete interface is examined by finite element analysis (FEA). In this way, a non-uniform stress distribution between steel and concrete is found with the maximum shear value about 2.5 times higher than the nominal shear stress value. The FEA combined with the experimental results provide a reasonable understanding of the shear induced failure conditions at a steel-concrete joint, and create test data for a fracture mechanics approach.},
  author       = {Helincks, Peter and De Corte, Wouter and Seitl, Stanislav and Boel, Veerle and De Schutter, Geert},
  booktitle    = {Key Engineering Materials},
  editor       = {Tonkovic, Z and Aliabadi, MH},
  issn         = {1013-9826},
  keyword      = {push-out test,epoxy,stress distribution,shear bond strength,eel-concrete joint},
  language     = {eng},
  location     = {Dubrovnik, Croatia},
  pages        = {714--717},
  publisher    = {TRANS TECH PUBLICATIONS LTD},
  title        = {Failure conditions from push-out tests of a steel-concrete joint: experimental results},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/KEM.488-489.714},
  volume       = {488-489},
  year         = {2012},
}

Chicago
Helincks, Peter, Wouter De Corte, Stanislav Seitl, Veerle Boel, and Geert De Schutter. 2012. “Failure Conditions from Push-out Tests of a Steel-concrete Joint: Experimental Results.” In Key Engineering Materials, ed. Z Tonkovic and MH Aliabadi, 488-489:714–717. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD.
APA
Helincks, P., De Corte, W., Seitl, S., Boel, V., & De Schutter, G. (2012). Failure conditions from push-out tests of a steel-concrete joint: experimental results. In Z. Tonkovic & M. Aliabadi (Eds.), Key Engineering Materials (Vol. 488–489, pp. 714–717). Presented at the 10th International Conference on Fracture and Damage Mechanics (FDM 2011), LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD.
Vancouver
1.
Helincks P, De Corte W, Seitl S, Boel V, De Schutter G. Failure conditions from push-out tests of a steel-concrete joint: experimental results. In: Tonkovic Z, Aliabadi M, editors. Key Engineering Materials. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD; 2012. p. 714–7.
MLA
Helincks, Peter, Wouter De Corte, Stanislav Seitl, et al. “Failure Conditions from Push-out Tests of a Steel-concrete Joint: Experimental Results.” Key Engineering Materials. Ed. Z Tonkovic & MH Aliabadi. Vol. 488–489. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD, 2012. 714–717. Print.