Shaking Table Tests on Unreinforced Load-Bearing Masonry Walls – Comparison With Simple Rocking Models.

Abstract

Abstract. Assessment of the overall seismic performances of multi-storey unreinforced ma-

Rocking Behaviour of Simple Unreinforced Load-Bearing Masonry Walls Including Soundproofing Rubber Layers

“…This is one topic of [33] and is based on seismic tests at a low-to-moderate acceleration level. During these tests, the specimens remained in contact with the support.…”

“…The consequences of these changes on the model predictions are illustrated in Figure 5 for the short wall. The modifications proposed in [31] improve significantly the model predictions. The starting of the rocking motion is better captured and the damping issues at the end of the signal have vanished, albeit some differences remain present.…”

“…A previous contribution of the same authors [31] already tried to reproduce the hereby considered experimental measurements with a model based on the theory developed by Housner. This model was chosen for its simplicity, but some modifications have been performed to fit with the experimental configurations and to consider the additional mass placed on the wall top especially.…”

“…The rotation is indeed getting damped at a slower rate in the model than in reality. Modifications are proposed in [31] and principally consist in discussing the description of the rigid body motion, leading to the choice of a global rotation around an arbitrary point rather than a rotation around the external bottom corners. It results in a change in the parameters R and as well as in the criterion of motion initiation and restitution coefficient.…”

Rural Masonry Isolating Structure and LRB Experiment: Seismic Resistance Properties and Statistical Data Curve Analyses

“…where F is resilience, K 1 is the shear stiffness when μ ≤ D 1 , K 2 is the shear stiffness when D 1 < μ ≤ D 2 , K 3 is the shear stiffness when μ > D 2 , and μ is the displacement. e stiction damping model [33] is…”