RA3 Flashcards

1
Q

Loads induced by the internal or external change in material properties or member geometry

A

Deformation loads

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2
Q

Examples of deformation loads

A

Creep, settlement, shrinkage

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3
Q

Loads created by the response of the structure to a given loading condition

A

Response loads

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4
Q

Example of response loads

A

Uplift, thermal forces

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5
Q

Deformation of concrete caused by loads sustained over a period of time

A

Creep

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6
Q

If the load is sustained over a period of time, a creep strain, roughly _________ times the magnitude of the instantaneous strain

A

1.5 to 3

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7
Q

Major factor which affects creep

A

Maturity of the concrete when the loads are applied

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8
Q

Creep can cause changes in the physical length of concrete members

A

True

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9
Q

Is the natural change in the volume of concrete

A

Shrinkage

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10
Q

When shrinkage takes place, the concrete volume generally _________

A

Decreases

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11
Q

Shrinkage is generally due to

A

Moisture loss

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12
Q

Creep and shrinkage are generally due to

A

Water cement ratio and humidity of air

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13
Q

The downward movement of a footing, approach pavement, or structure due to deformations of the supporting soil or piles

A

Settlement

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14
Q

Are caused by fluctuations in temperature

A
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