Behaviour of ductile hollow reinforced concrete columns
DOI:
https://doi.org/10.5459/bnzsee.16.4.273-290Abstract
An experimental investigation into the seismic performance of ductile hollow reinforced concrete bridge piers is described. Four 3.2 m high specimens, 750 mm square with 120 mm thick walls containing 60 longitudinal steel bars and different arrangements of confining steel in the plastic hinge zone were subjected to a constant axial load and cyclic lateral displacements. An assessment of the effect of axial load and the amount of transverse steel on the rotational capacity of the plastic hinge is made. The specimens performed satisfactorily at member ductilities between 6 and 8 without any significant degradation of strength under cyclic loading.
References
NZS 3101, "The Design of Concrete Structures", Part 1: Code of Practice, Part 2: Commentary, Standards Association of New Zealand, Wellington, New Zealand, 1982.
Mander J.B., "Seismic Design of Bridge Piers", Doctor of Philosophy Thesis in Preparation, University of Canterbury, Christchurch, New Zealand.
"Papers Resulting from Deliberations of the Society's Discussion Group on the Seismic Design of Bridges", Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 13, No. 3, September 1980, pp. 226-307.
"Highway Bridge Design Brief", Ministry of Works and Development, New Zealand, CDP 701/D, September 1978, 52 pp.
Scott, B.D., Park, R., and Priestley,M.J.N "Stress-Strain Behaviour of Confined Concrete by Overlapping Hoops at Low and High Strain Rates", Journal of the American Concrete Institute, January - February 1982, pp. 13-27.
Ang, B.G.,"Ductility of Reinforced Concrete Bridge Piers Under Seismic Loading", Master of Engineering Report, University of Canterbury, Christchurch. New Zealand, February 1981, 109 pp.
