Shear Transfer along Interfaces in Repaired/Strengthened RC Elements subjected to Cyclic Actions
Source abstract
Abstract
Efficient repair or strengthening of existing RC structures strongly depends on the behaviour of interfaces between old and new added concrete, crossed by reinforcing bars. The mobilization of the two main shear transfer mechanisms, namely friction and dowel action, depends on the imposed cyclic displacement along the interface, as well as on the number of cycles. In this paper, part of the experimental results of a systematic program are presented and commented upon. Artificially roughened interfaces between old and new concrete crossed by reinforcing bars are subjected to cyclic imposed shear slips of varying amplitude (±0,1 mm to ±2,0 mm). The opening of the crack, the mobilized shear resistance, the axial stresses of the steel bars, as well as the force-response degradation due to cycling are measured.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Concrete Corrosion and Durability · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. EPPO (Earthquake Planning and Protection Organization), Code for Interventions to Existing RC buildings, second draft, 2006 (in Greek).
2. Eleiott A. F.: An experimental investigation of shear transfer across cracks in reinforced concrete, M.S. Thesis, Cornell University, Ithaca, June 1974.
3. Stanton J. F.: An investigation of dowel action of the reinforcement of nuclear containment vessels and their non-linear dynamic response to earthquake loads, M.S. Thesis, Cornell University, Ithaca, 1977.
4. Jimenez R., Gergely P. and White R. N.: Shear transfer across cracks in reinforced concrete, Report 78-4, Department of Structural Engineering, Cornell University, Ithaca, New York, August 1978.
5. Vintzeleou · ACI Structural Journal · 1987 · 18
6. Soroushian · ACI Structural Journal · 1988 · 23
7. Colley B. E. and Humphrey H. A.: Aggregate Interlock at joints in concrete pavements, Highway Research Record, No. 189, 1967.
8. Loeber P. J.: Shear Transfer by aggregate interlock, M.Sc.Thesis, University of Canterbury, Christchurch, New Zealand, 1970.
9. White · Journal of Structural Division, ASCE · 1972 · 183510.1061/JSDEAG.0003306 ↗
10. Laible J. P.: An experimental investigation of interface shear transfer and applications in the dynamic analysis of Nuclear containment vessels, Ph.D. Thesis, Cornell University, August 1973.
11. Laible J. P., White R. N. and Gergely P.: Experimental Investigation of seismic shear transfer across cracks in concrete nuclear containment vessels, ACI Special Publication 53 “Reinforced Concrete Structures in Seismic Zones”, pp. 203–226, 1977.
12. Tassios · Journal of Structural Engineering, ASCE · 1987 · 83210.1061/(ASCE)0733-9445(1987)113:4(832) ↗
13. Bass · ACI Structural Journal · 1989 · 383
14. Maksoud M. G. A.: Factors affecting the mechanism of mobilized shear at crack or joint interface, 15th ASCE Engineering Mechanics Conference, New York, USA, June 2002 (electronic source, 8pp.).
15. Nakano K., and Matsuzaki Y.: Design Method and Compound Effect considering deformation of shear transfer elements in precast concrete connections, 13th World Conference on Earthquake Engineering, Vancouver, Canada, Paper No. 631 (electronic source, 10pp.), August 200.
16. Tassios T. P. and Vassilopoulou I.: Shear transfer capacity along a RC crack, under cyclic sliding, Proceedings of fib Symposium “Concrete Structures in Seismic Regions” (electronic source), Athens 2003, 12pp.
17. Rasmussen B. H.: Strength of transversely loaded bolts and dowels cast into concrete, Laboratoriet for Bygningastatik, Denmark Technical University, Meddelelse, Vol. 34, No 2, 1962.