The response of the free field refers to the site response when there is no foundation or
superstructure. Based on the accurate out-of-plane dynamic stiffness matrix for TI-layered medium given in the literature [36], the direct stiffness method introduced in literature [34] is adopted to determine the response of the free field in TI ground soil.
What is especially noteworthy about this schema is that it lends itself to a mechanical interpretation of Marx's thought, according to which the concepts (forces, relations, base,
superstructure) are treated as separate and interacting entities like the parts of a machine, each subject to analysis independently of the others and all being meshed according to an invariant design.
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Once the glass
superstructure was in place, the abutment was cleaned and restored where necessary with local Massangis stone, and the concrete floor and east terrace varnished to match the stone's colour.
Practically speaking, it could have been a flimsy piece of
superstructure, yet it was made part of the primary construction, of the first layer, of the skeleton of the building.
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