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"The weakest link"

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In wood structures separated by a masonry firewall, the attachments of the wood to the masonry wall should be designed so as not to cause collapse of the wall if the wood structure on one side burns and collapses.
In the Canadian Commentary M to the NBC 1995, they show a system using a "liaison faible" which I guess is translated from "weak link".  The idea is to provide lateral support to the masonry wall at each floor level, and to resist certain lateral loads such as seismic and wind, as well as loads which may occur during the fire, such as the force of the water jet.  But in the case of fire, to be weak enough to break under the force of the falling structure. 
 
There is not much detail as to how to implement this.
 
Does anyone have any examples ?
 
Kevin