Amber Book Steel Flashcards

1
Q

What is cold rolled steel used for?

A

cabling for bridges, bracing pre stressed concrete, metal studs. thin and strong

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2
Q

What does adding carbon to iron do?

A

it increases strength but decreases ductility

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3
Q

What are steel beam blanks?

A

rectilinear steel elements to be reheated and rolled to get the right shape

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4
Q

What is the depth for a steel beam?

A

1/20th the span

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5
Q

What is the depth for a steel girder?

A

1/15 the span

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6
Q

What is the width of a beam or girder?

A

1/3 its depth

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7
Q

What is the depth of an open web truss?

A

1/20th the span

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8
Q

What is the depth for a roof?

A

1/24th the span

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9
Q

What is the depth for metal decking?

A

1/24th the span

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10
Q

What is the depth for a corrugated roof deck?

A

1/40th the span

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11
Q

What is the depth for triangular trusses?

A

1/4 the span

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12
Q

What is the depth for rectangular trusses?

A

1/8th the span

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13
Q

What determines the size of a column?

A

the total area of the floor

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14
Q

What does W12x45 mean?

A

Steel wide flange 12” deep by 45 pounds per linear foot (weight)

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15
Q

What is a castellated beam?

A

made from a deep beam that is cut out and built with holes so it is lighter.

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16
Q

What are the letters for structural tee, angles, channel and I beam?

A

WT, L, C and S

17
Q

What are 3 types of open web steel joists in order of longest to shortest span?

A

DLH, LH, K

18
Q

How much bigger is the hole than the bolt?

A

1/16”

19
Q

What is galling? How is it prevented?

A

tearing in steel. Prevented with washers

20
Q

What is a seated beam connection?

A

it is SHEAR NOT MOMENT

21
Q

What is coping?

A

cutting the flange so it fits

22
Q

What does a fully restrained connection look like?

A

Bars on top and bottom

23
Q

What does a partially restrained connection look like?

A

small angles

24
Q

What do shear studs do?

A

they connect the beam to a concrete floor

25
Q

Name 3 types of fabric enclosures/

A

Polyester coated w/PVC, glass fiber coated with PTFE, Glass fiber coated with Silicone.

26
Q

What is the maximum stories a steel structure can be unprotected from fire?

A

5 stories

27
Q

What are 7 ways to fireproof steel?

A
plaster on lath, 
water anti freeze, 
reinforced concrete, 
spray applied resistance material, 
sheet metal with insulating steel, 
gypsum board, 
intumescent paint
28
Q

What do drift pins do?

A

they hold steel in place when positioning it

29
Q

What are taglines?

A

ropes that attach to steel when installing

30
Q

What are staggered truss systems?

A

every other floor is a truss that holds the floor above and below. it makes column free, tall spaces.

31
Q

What applications are mild steel? cold rolled steel?

A

wide flange beam, rebar, angles vs cabling for bridges and metal studs

32
Q

What are back up bars for?

A

to prevent welding from going all the way through the beam

33
Q

What is a girt?

A

horizontal element on a facade that holds the panels

34
Q

What member does not need to be fireproofed?

A

lateral resisting members like bracing