Forces and Loads.

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Presentation transcript:

Forces and Loads

Static Load Static Loads: are loads that are unchanging or change slow Example: A person holding a stack of books but he is not moving. The force downwards is STATIC FORCE

Dynamic Load Dynamic Load is a load that is always moving and changing on the given structure. Example: A person carrying a weight of books and walking. The force is moving or DYNAMIC FORCE.

Tension Tension is a pulling force Example: The rope is in “tension” as the two people pull on it. This stretching puts the rope in tension.

Compression Compression is a squeezing force Example: The weight lifter finds that his body is compressed by the weights he is holding above his head.

Shear Shear: a multidirectional sliding and separating force.

Torsion Torsion: A twisting force.

What forces are acting on this bridge?