Structural Engineering

Which picture represents compression?

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Which type of force is represented in this image:

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Draw what shear force looks like.

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NGSS.HS-PS2-3

Which is a real life example of torsion?

• The earth sliding from an earthquake.

• The lower columns of a skyscraper being squeezed by the weight above them.

• A bridge twisting from high winds.

• The weight of the roadway pulling on the cables of a suspension bridge.

What type of load is the weight of the structure itself?

• wind load

• live load

• thermal load

• dead load

An example of a live load is

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NGSS.MS-PS2-2

Dynamic loads are loads that change over time. These include wind gusts and pounding objects that create vibrations that can become bigger and more dangerous over time. What is one way to prevent a structure from bending from dynamic loads?

• thicker beams

• roller joints

• solar panels

• more hot glue

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NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

Which material is strongest in compression?

• wood

• iron

• steel

What is one weakness of concrete?

• rusts

• expensive

• fireproof

• cracks with temperature changes

What is one pro of building with wood?

• cheap

• long lasting

• doesn't rot

• heavy