This paper presents the results of a preliminary numerical investigation intothe interaction between precast concrete cladding systems and moment resistingframes. Macro-scale models of cladding systems are implemented in existing lumpedplasticity models for moment resisting frames. Different failure mechanisms andvarious configurations are considered in order to show the effect of the entirecladding system upon a structure’s seismic behavior. Several parameters are variedin order to establish their associated influence on the overall structural response.Results show that it is clearly more advantageous to have a failure mechanismgoverned by the connection than one governed by either the panel or the frame.An experimental program is now underway building on what has been learntfrom the parametric investigation. The authors intend to continue the research tosuccessively develop improved or innovative low-damage cladding-moment resistingframe systems. They also aim to produce simple design tools that provide easyinclusion of the seismic effects of cladding-frame interaction.
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