G3 - Describe Column Forms Flashcards
When would FRP be used to build column forms?
When an architectural finish is called for.
What is the most common column shape?
Round or rectangular.
Why are there three sizes for the same nominal diameter of fiber tube?
Storage (Tubes can fit in one another)
When would steel column forms be used?
When they can be reused many times.
How can a concrete column finish be improved when using fiber forms?
Use of a plastic liner.
What types of materials are conical column capital forms made from?
Prefabricated from metal or FRP
Which of the following forms require no banding or column clamps?
Round fibreboard
How are column forms held together?
Ties, clamps & banding
How are column forms usually adjusted to the exact required height?
Shimming the bottoms
What is the advantage of having all sides of a square column form to cut the same size?
Sides are interchangeable.
What is a fibre form?
Formed using disposable cardboard tune, wax lined.
When are steel forms most useful?
They are most economical if there is the possibility for many re-uses. Steel forms give a smooth, accurate finish but are so expensive that they are only used on large jobs.
What is a capital head form?
Column capitals are used to decrease the clear span of the beam, girder, or slab that is being supported by that column.
Capital is a widening of the column at the top. It may form an upside-down cone or a pyramid shape.
When hand-setting forms, how high are they usually set?
1/2 inch lower, so that they can be set to spec height with shims afterwards
