How to decide stringer beam supports for an open well staircase ?

Open well staircase design, cantilever staircase etc. is a challenge for young engineers. Design of open well staircase is easy but how to support staircase is the challenge. With stringer beams and with out it, stairs can be schemed. Cantilever staircase details may be available in books but scheme is not.

So, it becomes necessary for entry level engineers to find this information and hence thought of doing this video on stair supports.

A student gave an open well stair case plan and wanted me to help him with the stair support and the stair scheme.

I have shown the open well staircase section also and the stringer beam for supporting it. Stringer beam stair case types are explained in this video.
Stringer beams in stair case is not essential always. I have explained a stair scheme without stringer beam as well.

The video explains the below items in the order
An open well staircase scheme

How to suspend the second flight of the open well stair between 2 stair landings

How to support the same stair using stringer beams at edges

How to support the same stair using stringer beam in the center

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