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Friday, 5 January 2018


• A TRUSS structure consists of truss members which can have only axial member forces and no  bending in the members

• A PLANE structure is bound by a global X-Y coordinate system with loads in the same plane

• A SPACE structure, which is a three dimensional framed structure with loads applied in any plane,is the most general.

• A FLOOR structure is a two or three dimensional structure having no horizontal (global X or Z) movement of the structure [FX, FZ & MY are restrained at every joint]. The floor framing (in global X-Z plane) of a building is an ideal example of a FLOOR structure. Columns can also be modelled with the floor in a FLOOR  structure as long as the structure has no horizontal loading. If there is any horizontal load, it must be analyzed as a SPACE structure.

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