strut

This alteration will obviate the necessity for the injudicious iron struts which are now introduced between the backs of the columns and the face of the pilasters, and which, in a practical point of view, afford little or no advantage, except against a direct shock; and even in many such cases they have failed in that object; for in such of them as have been struck, permanent alteration of the strut has taken place, which now has the effect of holding those portions of the shaft with which they are connected out of their places.