Forces on Bridges

Forces are stretching the bridge deck (usually on the bottom side)

• Tension

• Compression

• Torsion

• Shear

Tags

NGSS.HS-PS2-1

Forces are causing the bridge to rotate.

• Shear

• Compression

• Torsion

• Tension

Tags

NGSS.HS-PS2-1

Forces are causing the top of the bridge deck to squeeze

• Shear

• Compression

• Torsion

• Tension

Tags

NGSS.HS-PS2-3

Forces are either side to side or up and down

• Shear

• Compression

• Torsion

• Tension

A weight, like a truck or a car, on the bridge deck

• Shear

• Load

• Torsion

• Tension

Tags

NGSS.HS-PS2-1

Compression causes...

• Twisting

• Cracks

• Side to side displacement

• Buckles

Tension causes...

• Twisting

• Cracks

• Side to side displacement

• Buckles

Shear causes...

• Twisting

• Cracks

• Side to side displacement

• Buckles

Torsion causes...

• Twisting

• Cracks

• Side to side displacement

• Buckles

Compression is a

• Push

• Pull