Design of stair stringer beam
Design of stair stringer beam
(OP)
Hi All,
I need to design a 5m span timber stringer beam for a staircase which is inclined at roughly 30 degrees. To calculate the maximum induced bending moment can i just consider the beam horizontal and undertake unusual procedures with the factored dead and live loads.
Cheers,





RE: Design of stair stringer beam
RE: Design of stair stringer beam
IT worked out well.
Cheers
RE: Design of stair stringer beam
Read your building code again: It almost always requires a very, very specific rise/run requirement, and a specific "maximum step height" requirement. Between the two, you can't make a 30 degree stair legal.
RE: Design of stair stringer beam
It is an external stairway running parallel to a raised platform held by a 3m timber canti-lever retaining wall giving access to a house up on the platform. The steep inclination of the stairway is required to overcome the high retaining wall.