Shared Flashcard Set

Details

Shoring
VFA Class XVI Block 3
16
Other
Professional
08/20/2013

Additional Other Flashcards

 


 

Cards

Term
What is the estimated shear/pulling strength of an 8D or 16D nail?
Definition
150 or 225 lbs
Term
What is backfill?
Definition
any material used to take up space or fill gaps between shoring components and the object
Term
What are cleats?
Definition
Small pieces of wood used to secure other parts of a shoring system in place
Term
What are diagonal braces or X/V?
Definition
Prevent shores from racking and buckling
Term
What are gusset plates?
Definition
Square, rectangular, or triangular pieces of 3/4" plywood nailed to secure shoring component junctions or connection points together.
Term
What is a header?
Definition
The uppermost element of the shore
Term
What is a horizontal strut?
Definition
The horizontal load-bearing member
Term
What is the raker?
Definition
Diagonal strut that supports the load form the wall plate and transfers the load to the sole plate, trough or u-channel
Term
What is the sole plate?
Definition
distributes the transferred load delivered by the posts or struts on the supporting surface
Term
What is a vertical post?
Definition
Load bearing member that receives the load from the header and transfers it to the supporting surface
Term
What is a wall plate?
Definition
Like a header beam, it is applied vertically against wall surfaces
Term
What do you use 8d nails on?16d?
Definition
Ply wood is 8
Gussets and Lumber for 16
Term
How many nails do you use with a gusset for 2x4? 2x6?
Definition
3 and 5
Term
Name the shoring systems?
Definition
Class 1 Spot timber
Class 2 vertical/horizontal
window/door
sloped surface cribbing
class 3 raker
Term
Components of the two post vertical shore
Definition
(2) 2x4 Diagonal braces (2x6) 7ft. x 6 inches is the maximum length.
(4) 2x Wedges, nail behind them t keep in place.
(2) Posts can be 4x4 or 6x6, vertical can be 20 Ft. maximum at 6x6 and the distance between them is 4 Ft. maximum for 4x4 and 5 ft. for 6x6.
(1) Midpoint brace is required, can be 6 – 11 Ft.
(1) 4x4 header with 12 inches leftover on each side.
(1) Sole plate same as header, 4x4 with 12 inches leftover on each side.
(2) Half gussets 6”x12” by ¾ of inch plywood (It may be one side if no chance of vibration or shock load.)
Term
Max height of a two post vertical shore?
Definition
The maximum height for a 4x4 shore is 12 Ft. unless built as part of a laced post.
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