Civil Discipline-Specific Review for the FE EIT

6

C iv il D islip lin e-S p ecifil R ev iew fo r th e F E /E lf E x o m

_ Ibf  Ibf 

nominal axial load at given eccentricity nominal P"    for axially loaded column factoral axial load  shear    reinforcement

nominal nominal nominal factored

shear shear shear shear

spacing

in

concrete density used for calculating uniform loading

lbf/in?

lbf 

modulus of elasticity

distance from neutral axis to extreme fiber of concrete section in tension f3,

Ibf/in2 Ibf 

strength provided by concrete strength of reinforced section strength provided by reinforcement force

Ibf/ft3 Ibf/ft III

ratio of depth of rectangular stress block, a,   to the depth to the neutral axis, C compressive strain in concrete net   tensile   strain in extreme reinforcing steel at nominal strength

P

reinforcement ratio for tension steel

Pb

reinforcement ratio for balanced stress condition gross reinforcement ratio capacity reduction factor 

Pg r /J

Slrullurol Sleel D esign .4.

effective net area gross area

in2 in 2

mrn''

in2 in2

mm" rnrn"

in2 in 2

mm' mrrr'

in2

mnr'

in

mm

D

critical slenderness ratio  bolt diameter  dead load 

D.

hole diameter 

Ibf, Ibf/ft, in

Ag A gt

 A,v  A n. An t AnY

b C 

c

db

 E   F a

F" F,

F.

gross area in tension gross area in shear net area net area in tension net area in shear member width

modulus

of elasticity

of concretc

allowable axial compressive stress critical stress allowable tensile stress

r;

specified minimum ultimate allowable shear stress

F  y

specified minimum yield stress

9

transverse distance between hole centers ( .' moment of inertia gage   spacing]

I

k 

 L

effective length factor for compression member unbraced member length live   l o a d

 L r ;

cri tical Euler axial loading

P" 

nominal   axial   strength

r. r 

required axial strength radius   of gyration

 Rn

s

SR t 

strength

(sum of factored loads]

nominal block shear rupture strength longitudinal distance b etween hoi t (p: . )   e cen ers pItch' spacll1g slenderness ratio member thickness

mm'

lbf/ft2

Pa Pa Pa

lbf/in'

Pa Pa

lbf/in' Ibf/in' Ibf/in'

Pa Pa mm

III

in"

rnm"

ft

III

Ibf  in

Pa

mm

lbf/in' Ibf/in' lbf/in?

lbf, Ibf/ft, Ibf  Ibf  Ibf 

 N, N/m,

2

Ibf/ft

m  N, N/m,  N  N  N mm  N mm

Pa