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BT 3 > Excavation, Formworks, Scaffolding and Staging > Flashcards

Excavation, Formworks, Scaffolding and Staging Flashcards

1
Q

the digging and removal of earth from its natural position

A

excavation

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2
Q

ecavation characterized as having independent and hollow block wall footing

A

minor excavation

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3
Q

an excavation which requires wide or total extraction of the soil

A

major excavation

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4
Q

the process of providing temporary supports to the structure or ground during excavation

A

shoring

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5
Q

the process of rebuilding, strengthening or stabilising the foundation of an existing building

A

underpinning

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6
Q

these consist of steel cables or tendons that are inserted into holes pre-drilled through the sheet piling and into the rock or a suitable stratum of soil, grouted under pressure to anchor them to the rock soil, and post-tensioned with a hydraulic jack

A

tieback

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7
Q

part of the foundation system which provides support for the superstructure above to resist active earth pressure and anchor the superstructure against wind and seismic forces

A

foundation wall

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8
Q

serves as a sheeting and often used as a permanent foundation wall

A

slurry wall

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9
Q

a method of foundation system protection applied to a foundation wall when a subsoil conditions indicate that hydrostatic pressure will not occur

A

dampproffing

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10
Q

a system of temporary boarding, sheathing or pans used to produce the desired shape and size of concrete mass

A

formworks

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11
Q

boarding or sheeting of wood, metal, plastic, fiber glass for containing and giving a desired shape

A

form

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12
Q

a system of temporary platform to support workers and materials on the face of a structure and to provide access to work areas above ground

A

scaffoldings

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13
Q

temporary bracing for supporting work under construction which cannot yet support itself

A

falsework

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14
Q

a temporary platform for workers and the materials that the use in building structures

A

staging

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15
Q

a piece of timber to support a wall, usually set in a diagonal or oblique position to hold the wall in place temporarily

A

shore

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16
Q

a horizontal timber or steel beam for reinforcing various vertical members. also called breast timber,ranger, waler

A

wale

17
Q

any variety of slotted devices for lightening formwork

A

wedge

18
Q

a vertical support for aligning and reinforcing wales also called stiffback

A

strong back

19
Q

a brace, usually wood for spacing and keeping wall or footing forma apart, also called spacer

A

spreader

20
Q

a wood strip fixed to the inside face of a form or preventing the passage of newly paced concrete a construction joint

A

bulkheart

21
Q

a clamping device for keeping column forms or the tops of wall forms from spreading under fluid pressure of newly paced concrete

A

yoke

22
Q

material for lining the inner face of a form

A

formliner

23
Q

a metal tie for keeping wall forms from spreading under the fluid pressure for newly placed concrete

A

form tie

24
Q

a form tie having notches or crimps which allow its ends to be snapped off after stripping of the froms

A

snap tie

25
Q

a form tie having cones at each end inside the forms which allow it to also serve as a spreader

A

cone bolt

26
Q

a small, truncated cone of wood, steel or plastic attached to a form tie to space and spread wall forms

A

cone

27
Q

a form tie consisting of waler rods which are inserted through the form and threaded onto the ends of an inner rod

A

she bolt

28
Q

a device for supporting and holding steel reinforcement

A

chair

29
Q

a tall chair for supporting top bars in a concrete beam or slab

A

high chair

30
Q

a wide chair for supporting and spacing bottom bars in a concrete beam or slab

A

bolster

31
Q

trademark for a brand of cylindrical column form

A

sonotube

32
Q

a structure whose primarily function is to provide lateral support for soil or rock

A

retaining wall

BT 3 (9 decks)

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