Chp 3 Terms

Question 1

Caisson

Answer 1

A shaft of concrete placed under a building column or wall extending down to bedrock.

Question 2

Crosslot bracing

Answer 2

Internal bracing that transfers the lateral Earth pressures between opposing walls through compressive struts.

Question 3

Folded plate

Answer 3

A structural element used to strengthen the roof of a structure over large areas.

Question 4

Pile

Answer 4

One of a series of large timbers or steel sections driven into soft ground down to bedrock to provide a solid foundation for the superstructure of a building.

Question 5

Raker

Answer 5

Braced sheeting using soil walls to protect against collapse.

Question 6

Slurry wall

Answer 6

Foundation wall in an excavation that is heavily reinforced with steel and temporarily filled with a liquid slurry mixture that is subsequently displaced by concrete.

Question 7

Thermoplastic

Answer 7

Construction material that softens when heated and re-hardens when cooled

Question 8

Thermoset

Answer 8

Plastic that chars and burns but does not flow.

Question 9

Tieback

Answer 9

Braced sheeting used in soil walls to protect against collapse.