Torsional Seismic Response of Symmetrical Structures

by Munirathnam Valathur, Sr. Struct. Engrg. Specialist; Sargent & Lundy, Chicago, Ill.,
Hemant H. Shah, (A.M.ASCE), Struct. Project Engr.; Sargent & Lundy, Chicago, Ill.,

Serial Information: Journal of the Power Division, 1977, Vol. 103, Issue 1, Pg. 65-75

Document Type: Journal Paper

Abstract: An approach to evaluate the torsional effect has been presented, using the time-history method of analysis. This approach considers the effect of building size, wave propagation velocity, and the dynamic characteristics of the structure. Based on wave-propagation consideration, the ground motion is treated to produce translational and torsional input time-history motions for which a conventional seismic model can be analyzed.

Subject Headings: Torsion | Ground motion | Wave propagation | Wave velocity | Seismic tests | Structural dynamics | Seismic waves | Model analysis |

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