Week 10:Moment,Shear,Plate and Slotted Connections

Question 1

Name an example of a moment resisting truss?

Answer 1

Vierendeel truss (ie truss without diagonals)

Question 2

List the 2 ways you can create a moment resisting connection?

Answer 2

1- RHS-to-RHS

2- Beam-to-HSS

Question 3

What 2 things make a moment connection rigid?

Answer 3

1-Stiffeners

2-equal branch-to-chord ratio

Question 4

In RHS-to-RHS Moment Corner connections, which type of connection is preferred between

a-unstiffened and
b-stiffened with transverse stiffening plate?

Answer 4

b-stiffening with transverse stiffening plate

Question 5

With simple shear connections, what is the governing failure mechanism?

Answer 5

Punching shear failure

Question 6

Which is the strongest directional type of plate-to-HSS connection out of

a-longitudinal plate
b-transverse plate
c-skew plate

Answer 6

b- transverse branch plate-to-HSS

Question 7

List the 4 types of plate-to-HSS connections available

Answer 7

1-Longitudinal branch plate
2-Transverse branch plate
3-Through branch plate
4-Stiffened branch plate

Question 8

What is the function of diagonal bracings in a frame?

Answer 8

To resist lateral loads ie wind

Question 9

In a moment frame under seismic loading, what function do diagonal bracings serve?

Answer 9

They act as energy dissipators, absorbing the energy from the earthquake through elastic connections

Question 10

What is the failure mode for braced frames under seismic loading

Answer 10

Yielding in tension and buckling in compression

Question 11

What are the two principal failure modes for typical slotted plate-to-HSS connections?

Answer 11

1-Tear Out failure

2-Circumferential failure

Question 12

Complete the sentence….

Thicker sections behave better under……….loading

Answer 12

Cyclic