Overview of Common Structural Shapes in Construction and Engineering

1. I-Beams (or H-Beams): These have an I or H shape and are commonly used for horizontal structural elements like beams in buildings and bridges.

2. C-Channels: These are C-shaped structural elements used in various applications, especially in construction and manufacturing.

3. Angle (L-shaped): Angles are L-shaped structural elements used to reinforce corners, support, or join structural components.

4. T-Beams: These are structural beams shaped like the letter T and are often used in construction for load-bearing purposes.

5. Tubes and Pipes: Circular or hollow cylindrical structures used in various applications like columns, support structures, and fluid transportation.

6. Rods and Bars: Long cylindrical solid structures often used for reinforcement or as tension members.

7. Plates and Sheets: Flat and thin structural elements used as base materials for various construction and manufacturing purposes.

These shapes vary in their structural properties and are selected based on the specific requirements and load-bearing capacities in construction or engineering projects.