structural components
Quantities of various distinct members in the framework of a building or other object.
Quantities of structural components are the total numbers of any type of component of a structure's framework, which can be clearly defined and compared against different structures.
The unit being counted is a defined member or component of the structural framework. A count of one kind of component is different from a total combining several kinds.
The number of piles counts foundation supports, while the number of spans counts bridge segments between supports. Neither figure is a measurement of length or material volume.
