020302d - Concrete Stairs

Question 1

What drawings are used to find the info required to construct concrete stairs?

Answer 1

Plan views, elevations and sections.

Question 2

_____ stairs are supported by landings, columns or walls.

Answer 2

Suspended

Question 3

_____ stairs are supported directly on the ground.

Answer 3

Supported.

Question 4

How are suspended concrete stairs supported?

Answer 4

Landings, columns and stairs.

Question 5

What type of finish should be provided for treads used in outdoor environments?

Answer 5

Non-slip surfaces and should be slightly sloped to allow for drainage.

Question 6

How should residential precast stairs that have more than five risers be attached to a concrete foundation?

Answer 6

Should be bolted through channel iron the full height of the wall.

Question 7

What is the maximum vertical distance a stair can rise before a landing must be installed?

Answer 7

3.7 m (12’)

Question 8

Why is it recommended that reinforcing bars be imbedded into a keyway rather than holes drilled in the wall forms?

Answer 8

This could make stripping the wall forms difficult.

Question 9

Precast stairs for commercial applications are normally cast in metal or fibreglass forms and are pre-stressed typical. T or F

Answer 9

T

Question 10

Minimum and maximum unit run by code for residential stair?

Answer 10

210 and 355