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Tension softening effects on the buckling behavior of slender concrete wall panels

conference contribution
posted on 15.11.2012, 14:25 by Gary P. Robinson, Alessandro PalmeriAlessandro Palmeri, Simon Austin
This paper summarizes the main findings of experimental and computational investigations on the behavior of traditional, centrally reinforced, slender concrete panels. The results support historical research, demonstrating that slender reinforced concrete walls have load capacities far in excess of the estimates based on current design guidelines. Testing was focused on the buckling response of pre-cracked elements, in order to better understand the effects of the tension softening phenomenon on the ultimate load. A worryingly brittle failure was observed in the experimental campaign, questioning the appropriateness of such panels in construction. A layered finite element model, with lumped plasticity at the critical cross section, has been utilized to simulate the buckling response of slender walls, providing comparable results to currently published experimental data. Being able to capture the main geometrical and material nonlinearities, this computational strategy emerges as a viable alternative to traditional design equations. Further experimental testing is however required for validation purposes.

History

School

  • Architecture, Building and Civil Engineering

Citation

ROBINSON, G.P., PALMERI, A. and AUSTIN, S.A., 2011. Tension softening effects on the buckling behavior of slender concrete wall panels. IN: Cheung, S.O. et al. (eds.), Modern Methods and Advances in Structural Engineering and Construction. Proceedings of the ISEC-06. Singapore: Research Publishing Services. 6pp.

Publisher

© Research Publishing Services

Version

AM (Accepted Manuscript)

Publication date

2011

Notes

This paper was presented at the 6th International Structural Engineering and Construction Conference, Zürich Switzerland, June 21–26, 2011.

ISBN

9789810879204

Language

en