TENSION - Ilaw

Question 1

For high-strength steel where the yield point is not well defined, the value of Fy is estimated at a point where ______.

Answer 1

0.2% Strain Offset

Question 2

Using AISC 2016 Table D3.1, determine the value of U assuming 3 bolts per line.

Answer 2

0.6

Question 3

For transverse welded connections, when not all the elements are connected, the effective Area Ae is equal to the Area of the connected part A and therefore U is equal to ____.

Answer 3

1

Question 4

There is no Block shear failure in ASD because block shear failure happens in the ________ range of behavior.

Answer 4

Plastic or Inelastic

Question 5

High strength steel is less ductile than mild steel because of its low ____ content.

Answer 5

Carbon

Question 6

Determine the Net Area (An) of a 1/4 in. x 4 in. plate and the diameter of the bolt is 7/8 in. Assume plate thickness is 1/4 in,

Answer 6

3/4 in^2

Question 7

Rolled steel sections that do not belong to standard shape section like W,S,C, and T are called _________ shapes.

Answer 7

Miscellaneous

Question 8

The actual rupture strength of steel is lower than the rupture strength recorded in a coupon test.

Answer 8

False - higher

Question 9

The strength of a tension member is controlled by _________.

Answer 9

Lowest Strength Limit State

Question 10

What is the equivalent diameter of the hole if the nominal hole diameter is 3/4 in.?

Answer 10

13/16 in

Question 11

The value s^2/4g is an additional width of the section due to __________

Answer 11

Staggering

Question 12

The plates are secondary braces to ensure that __________ members behave as a single unit.

Answer 12

Built Up

Question 13

Using the formula U = (1-x)/L, determine the value of U if L=10. Note: The 5 in leg is connected on the plate.

Answer 13

0.9

Question 14

The center to center distance between two consecutive bolts in a bolt line is called ___________.

Answer 14

Pitch

Question 15

Block shear fracture thru bolt holes considers ___________.

Answer 15

Shearing of the Plate

Question 16

The condition in which steel exhibits a considerable increase in tension strength beyond the yield point is called _________.

Answer 16

Strain Hardening

Question 17

The range along the stress-strain curve where the x-sectional area starts decreasing prior to failure is called _________.

Answer 17

Inelastic Range

Question 18

Serviceability limits due to vibration and sagging depend on the ___________.

Answer 18

Slenderness

Question 19

The block shear failure mode is a combination of shear and tension failures on the ________.

Answer 19

Connecting Plate

Question 20

The equivalent hole diameter is equal to __________.

Answer 20

any of the above

Question 21

Pure axial tension members are those to which the force in tension is applied at the __________ axis.

Answer 21

Centroidal

Question 22

Which of the following statement is not true as far as the strength limit state condition on tension members are concerned.

Answer 22

NOTA

Question 23

The equivalent hole diameter considers both an allowance for bolt insertion and an allowance for error due to ___________ brought about by punching, drilling, etc.

Answer 23

Damage

Question 24

The condition in which the efficiency of the cross-section is reduce to a certain percentage of the net section is due to a behavior known as _________.

Answer 24

Shear Lag

Question 25

The length of a tension member is significant both in the strength and serviceability limit state condition.

Answer 25

False

Question 26

Which of the following is not true for a W-shape section.

Answer 26

None of the above

Question 27

When all elements of the section are connected by fasteners or welds, then the shear lag effect is __________.

Answer 27

1