The centre of earthquake loading on tall buildings
DOI:
https://doi.org/10.5459/bnzsee.9.4.195-198Abstract
A response spectrum technique is applied to two well known linear elastic continuous models of slender high rise buildings in order to obtain likely positions for the centres of earthquake loading. The models chosen are the uniform cantilever shear beam and the uniform cantilever shear wall, which represent the two extremes of pure shear deformation and pure flexural deformation, respectively. The results obtained are at variance with the static provisions of the current New Zealand code; this is especially so in the case of the shear wall. On the basis of these findings a tentative suggestion is made for a change to the familiar equivalent static lateral load distribution at present specified by the code.
References
Blakeley, R. W. G., Cooney, R. C., and Megget, L. M., "Seismic Shear Loading at Flexural Capacity in Cantilever Wall Structures", Bulletin of the New Zealand National Society for Earthquake Engineering. Vol. 8, No. 4, December 1975, pp. 278-290. DOI: https://doi.org/10.5459/bnzsee.8.4.278-290
Jennings, P. C., "Spectrum Techniques for Tall Buildings", Proceedings of the Fourth World Conference on Earthquake Engineering, Santiago, Chile, Vol. 2, A-3, 1969, pp. 61-74.
Housner, G. W., "Behaviour of Structures During Earthquakes", Journal of the Engineering Mechanics Division, ASCE, Vol. 85, October 1959, pp. 109-129. DOI: https://doi.org/10.1061/JMCEA3.0000102
Goodman, L. E., Rosenblueth, E. and Newmark, N. M., "Aseismic Design of Firmly Founded Elastic Structures", Transactions of the American Society of Civil Engineers, Vol. 120, 1955, pp. 782-802. DOI: https://doi.org/10.1061/TACEAT.0007162
Anderson, A. W., et al, "Lateral Forces of Earthquake and Wind", Proceedings of the American Society of Civil Engineers, Vol. 77, April 1951, Separate No. 66.
Humar, J. L. and Wright, E. W., "Shear and Overturning Moment for Earthquake- Resistant Building Design", Canadian Journal of Civil Engineering, Vol. 2, 1975, pp. 22-35. DOI: https://doi.org/10.1139/l75-003
