Steel

Question 1

TENSION MEMBERS

Based on Gross Area

Answer 1

P=0.6 Fy Ag

Question 2

TENSION MEMBERS

Based on Net Area

Answer 2

P=0.50 Fu Ae

Question 3

TENSION MEMBERS

Based on Net Area, Formula for Area

Answer 3

Ae = (h - 2dh) t 
dh = diameter of hole

Question 4

Tension Members

Based on Net Area, Staggered

Answer 4

P= 0.50 Fu Ae
Where: 
Ae = Net Width * thickness
Net Width = h - 2dh + £ s^2 / 4g
*g = vertical Distance

Question 5

Tension Members

Based on Block Shear

Answer 5

P= 0.30 Fu Av + 0.50 Fu At
* Av = Horizontal
At = Vertical

Question 6

How to tell if the beam is COMPACT

Answer 6

( bf / 2tf ) < (170 / sqrt Fy)

Question 7

How to tell if the beam is PARTIALLY COMPACT

Answer 7

(250/ Sqrt Fy) > ( bf / 2tf) > ( 170/ Sqrt Fy)

Question 8

How to tell if the beam is NON COMPACT

Answer 8

(bf / 2tf) > (250/sqrt Fy)

Question 9

Compact

Flexural Stress / Bending Stress

Answer 9

Fb = 0.66 Fy

Question 10

Non Compact

Flexural Stress / Bending Stress

Answer 10

Fb = 0.60 Fy

Question 11

Partially Compact

Flexural Stress / Bending Stress

Answer 11

Fb = ( Fy ) [ - 0.000762 ( bf / 2tf) (sqrt Fy) + 0.79]

Question 12

General Formula for Bending Stress

Answer 12

Fb = Mc / i

* M = Max Moment

Question 13

Vertical Shear Stress in I beam

Answer 13

Fv = V / d tw

Question 14

LATERALLY UNSUPPORTED BEAMS
Case 1  (Compact )

Answer 14

Lb < Lc, Fb = 0.66Fy

Lc = (200 bf) / sqrt Fy

Question 15

LATERALLY UNSUPPORTED BEAMS
Case 2 ( Short )

Answer 15

Lb > Lc

Lb < Lu

Question 16

LATERALLY UNSUPPORTED BEAMS
Case 2 ( Short )
Fb

Answer 16

Fb= 0.60Fy

Question 17

LATERALLY UNSUPPORTED BEAMS
Case 3 ( intermediate)

Answer 17

Sqrt ( 703270 Cb / Fy) < L/rt < Sqrt (