We can classify structures into two aspects.
Function
Let's discuss the first - function. Earlier, we said that structures are to fulfill a purpose. For example:
- We create buildings to provide shelter or spaces
- We build towers to support cable utilities.
- We construct bridges to provide access between gaps.
When we categorize these according to such, we classify them according to their function.
Depending on the project, the function of these structures may differ from their intended purpose. Nevertheless, the table below shows common ones and their role.
Direction
We can also classify according to direction, which can be horizontal or vertical:
- Horizontal Structures are those we build parallel to the Earth's surface. For example, we have bridges or tunnels.
- Vertical Structures are those we construct upward (or downward) from the Earth's surface. Examples include buildings, towers, or retaining walls.
Summary
Let's summarize:
When we classify structures according to its intended purpose, we classify them according to function.
When we classify structures according to direction, they can be horizontal or vertical. Horizontal Structures are those we build parallel to the Earth's surface, while Vertical Structures are those we construct upward (or downward) from the Earth's surface.
