Publication Date:
1989-02-01
Description:
Some structures yield asymmetrically in the two opposite senses of a given direction. This can be due to structural configuration, asymmetry in loads, or tilting. As a consequence the capacity to resist earthquake motion can be much owing to a tendency to accumulate inelastic deformations in the weaker sense. The phenomenon is studied here for single-degree-of-freedom hysteretic bilinear systems subjected to simulated accelerograms of the E-W component of the motion registered in the Ministry of Communications and Transportation in Mexico City, during the September 19, 1985 earthquake. The evolutionary spectral power concept is used for this purpose. Approximate practical rules are deduced from results of this study which were included in the new Mexican seismic design code. The influence of motion duration is pointed out on this type of structures.
Print ISSN:
8755-2930
Electronic ISSN:
1944-8201
Topics:
Architecture, Civil Engineering, Surveying
,
Geosciences