Advances in concrete construction

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Bond and ductility: a theoretical study on the impact of construction details - part 2: structure-specific features

  • Zwicky, Daia (University of Applied Sciences Western Switzerland, College of Engineering and Architectures of Fribourg)
  • Received : 2012.10.08
  • Accepted : 2013.06.07
  • Published : 2013.06.01
⟨ Previous Next ⟩

Abstract

The first part of this two-part paper discussed some basic considerations on bond strength and its effect on strain localization and plastic deformation capacity of cracked structural concrete, and analytically evaluated the impacts of the hardening behavior of reinforcing steel and concrete quality on the basis of the Tension Chord Model. This second part assesses the impacts of the most frequently encountered construction details of existing concrete structures which may not satisfy current design code requirements: bar ribbing, bar spacing, and concrete cover thickness. It further evaluates the impacts of the additional structure-specific features bar diameter and crack spacing. It concludes with some considerations on the application of the findings in practice and an outlook on future research needs.

Keywords

References

  1. Alvarez, M. (1998), Einfluss des Verbundverhaltens auf das Verformungsvermogen von Stahlbeton (Influence of bond behavior on the deformation capacity of structural concrete, in German), Institute of Structural Engineering, Swiss Federal Institute of Technology, Zurich, Switzerland.
  2. Bazant, Z.P., Li, Z. and Thoma, M. (1995), "Identification of stress-slip law for bar or fiber pull-out by size effect test", ASCE J. Eng. Mech., 121(5), 620-625. https://doi.org/10.1061/(ASCE)0733-9399(1995)121:5(620)
  3. Bruggeling, A.S.G. (1991), Structural Concrete - Theory and its Application, Balkema Rotterdam.
  4. Darwin, D., McCabe, S.L., Idun, E.K. and Schoenekase, S.P. (1992), "Development length criteria: bars not confined by transverse reinforcement", ACI Struct. J., 89(6), 709-720.
  5. Elfgren, L., Noghabai, K., Ohlsson, U. and Olofsson, T. (1995), "Applications of fracture mechanics to anchors and bond", 2nd Int'l Conf. on Fracture Mechanics of Concrete Structures, 3, Aedificatio Publ., Zurich, Switzerland,1685-1694.
  6. Engstrom, B., Magnusson, J. and Huang Z. (1998), "Pull-out bond behavior of ribbed bars in normal and high-strength concrete with various confinements", Bond and Development of Reinforcement: a tribute to Dr. Peter Gergely, ACI-Int. SP-180, 215-242.
  7. fib (2000), "Bond mechanisms including pull-out and splitting failures", Bond of reinforcement in concrete - state-of-the-art report, bulletin no. 10, Int. Federation Struct. Concrete (fib), Lausanne, Switzerland, 1-98.
  8. Huang, Z., Engstrom, B. and Magnusson, J. (1996), Experimental investigation of the bond and anchorage behavior of deformed bars in high strength concrete, 95:4, Division of Concrete Structures, Dept. of Structural Engineering, Chalmers University of Technology, Gothenburg, Sweden.
  9. Kenel, A. (2002), Biegetragverhalten und Mindestbewehrung von Stahlbetonbauteilen (Bending behavior and minimum reinforcement of structural concrete elements, in German), Institute of Structural Engineering, Swiss Federal Institute of Technology, Zurich, Switzerland.
  10. Marti, P., Alvarez, M., Kaufmann, W. and Sigrist, V. (1998), "Tension chord model for structural concrete", Struct. Eng. Int'l., 8(4), 287-298. https://doi.org/10.2749/101686698780488875
  11. Mayer, U. (2003), Zum Einfluss der Oberflachengestalt von Rippenstahlen auf das Trag- und Verformungsverhalten von Stahlbetonbauteilen (Influence of the rib pattern of ribbed reinforcement on the structural behavior of reinforced concrete members, in German), 537, Deutscher Ausschuss fur Stahlbeton, Beuth Berlin, Germany.
  12. Model Code (2010a), Model Code 2010 - Final draft, 1, International Federation for Structural Concrete (fib), Lausanne, Switzerland.
  13. Model Code (2010b), Model Code 2010 -Final draft, 2, International Federation for Structural Concrete (fib), Lausanne, Switzerland.
  14. Noakowski, P. (1988), Nachweisverfahren fur Verankerung, Verformung, Zwangsbeanspruchung und Rissbreite (Verification procedure for anchorage, deformation, restraint loading and crack width, in German), 394, Deutscher Ausschuss fur Stahlbeton, Beuth Berlin, Germany.
  15. Noghabai, K. (1995), "Splitting of concrete covers - a fracture mechanics approach", (Ed. Wittman, F.H.), Proc. 2nd Int'l Conf. on Fracture Mechanics of Concrete Structures, Vol. II, Aedificatio Publ., Zurich, Switzerland, 1575-1584.
  16. Rehm, G. (1961), Uber die Grundlagen des Verbunds zwischen Stahl und Beton (On the fundamentals of bond between steel and concrete, in German), Deutscher Ausschuss fur Stahlbeton, Ernst & Sohn Berlin, 138, Germany.
  17. Schenkel, M. (1998), Zum Verbundverhalten von Bewehrung bei kleiner Betondeckung (On the bond behavior of reinforcement with small concrete cover, in German), Institute of Structural Engineering, Swiss Federal Institute of Technology, Zurich, Switzerland.
  18. Schiessl, P. (1989), "Grundlagen der Neuregelung zur Beschrankung der Rissbreite (Basics for the new directives on crack width limitation, in German)", Erlauterungen zu DIN 1045 "Beton- und Stahlbeton - Ausgabe 07.1988", 400, Deutscher Ausschuss fur Stahlbeton, Beuth Berlin, Germany, 157-175.
  19. SIA 262 (2003), Concrete structures, Swiss Society of Engineers and Architects (SIA), Zurich, Switzerland.
  20. SIA 269/2 (2011), Existing structures - concrete structures, Swiss Society of Engineers and Architects (SIA), Zurich, Switzerland (in German and French).
  21. Sigrist, V. (1995), Zum Verformungsvermogen von Stahlbetontragern (On the deformation capacity of reinforced concrete girders, in German), 210, Institute of Structural Engineering, Swiss Federal Institute of Technology, Zurich,Switzerland.
  22. Tepfers, R. (1973), A theory of bond applied to overlapped tensile reinforcement splices for deformed bars, 73/2, Division of Concrete Structures, Dept. of Structural Engineering, Chalmers University of Technology, Gothenburg, Sweden.
  23. Tepfers, R. (1979), "Cracking of concrete cover along anchored deformed reinforcing bars", Mag. Concrete Res., 31(106), 3-12. https://doi.org/10.1680/macr.1979.31.106.3
  24. Zwicky, D. (2013), "Bond and ductility: a theoretical study on the impact of construction details - part 1: basic considerations", Adv. Concr. Constr., 1(1), 103-119. https://doi.org/10.12989/acc.2013.1.1.103
  25. Zwicky, D. (2002), Zur Tragfahigkeit stark vorgespannter Betonbalken (On the bearing capacity of highly prestressed concrete girders, in German), Institute of Structural Engineering, Swiss Federal Institute of Technology, Zurich, Switzerland.

Cited by

  1. Numerical study of a new constructive sequence for movable scaffolding system (MSS) application vol.4, pp.3, 2013, https://doi.org/10.12989/acc.2016.4.3.173