What kind of building components does Revit encompass?

All most all kind of civil designing aesthetics can be done in revit more over values and data can be entered manually (also preset values and data) to get a better architectural design. Also a designer can visualize his ideas in mind to reality by using revit

All most everything  a building need

Have the all material having the revit encompasses

Everything in building informatipn modeling. Primiarily focused in Architecture , Structure and MEP

Revit  is a tool to design the projects by building a visualized model and can co-ordinates between all building's disciplines and reducing time during construction because it has already resolves all kind of conflicts between the items of any building such as Architectural, Structural, MEP, interior and as well as Quantity Survey.

Also a designer can visualize his ideas in mind to reality by using revit

Revit is a great tool which give you feel of actual project with out even executing it, in Revit you can model all thing from architectural finish to all MEP component . In short Revit now a days Revit is delivering virtual project.

Almost all the type of construction elements and types 

Revit  (Arch + Struc.) should do the following changes.

1- Make easy to create new family component.

2- Stair cases ( Circular and custom shapes) are more complicated should review to make easier.

3- Circular Ramp is difficult to draw. need to review.

4- Wall finishing layers (Plaster,  Paint , Ceramics). need review to make easy edit. 

5- underlay (view Levels) option need more review. 

6- Steel bars in structural, need easy way to place, and easy way of tags. 

Indeed , Buildings that revit covers implies structural ,arc , industrial and samples incorporation with tools and library

Revit encompasses all the building components.

Revit encompasses all the

1) Architectural with analysis 

2) Structural with analysis

3) MEP with analysis