Abstract
The seismic resistance of unreinforced masonry cantilever wall
Highlights
Simple harmonic motion (SHM) in single-degree-of-freedom systems has restoring forces proportional to displacements from the at rest configurations, and this property, together with earthquake motions and damping factors, gives definition to response spectra
Spectra for SHM systems are not applicable, and equations (7b) and (8) of the paper are not available discussion and observation based upon results of applying these and derived equations are suspect at best
Unreinforced masonry (URM) walls are traditionally regarded as a very brittle form of construction and for this reason elastic analysis based on the use of the response spectrum would still appear to many engineers as an appropriate method to estimate its response to earthquake loads, in the out-of-plane direction
Summary
Simple harmonic motion (SHM) in single-degree-of-freedom systems has restoring forces proportional to displacements from the at rest configurations, and this property, together with earthquake motions and damping factors, gives definition to response spectra. Spectra for SHM systems are not applicable, and equations (7b) and (8) of the paper are not available discussion and observation based upon results of applying these and derived equations are suspect at best.
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