Design of stair supported on walls
Design of stair supported on walls
(OP)
Hi,
I am designing a stair supported by RCC walls on both sides. Now, in a few articles I saw that connecting stairs to walls on both sides is not a good practice in case of seismic design.
Any comments regarding this will be appreciated.
Thanks.
I am designing a stair supported by RCC walls on both sides. Now, in a few articles I saw that connecting stairs to walls on both sides is not a good practice in case of seismic design.
Any comments regarding this will be appreciated.
Thanks.






RE: Design of stair supported on walls
RE: Design of stair supported on walls
BA
RE: Design of stair supported on walls
So, there are chances that their displacements might no be in sync. So probably it's better to design the stair as cantilever from any of the walls.
RE: Design of stair supported on walls
How wide are the stairs, how many storeys in the building and what's the floor to floor spacing?
RE: Design of stair supported on walls
RE: Design of stair supported on walls
BA
RE: Design of stair supported on walls
RE: Design of stair supported on walls
RE: Design of stair supported on walls
could you please explain a bit more about providing bearing connection?
RE: Design of stair supported on walls
RCC is roller compacted concrete
RE: Design of stair supported on walls
BA
RE: Design of stair supported on walls
RCC (Reinforced Cement Concrete) is a very common term used for reinforced concrete in my country. The stairs as well as the stairs are of reinforced concrete.
RE: Design of stair supported on walls
I am fortunate enough to live in an area of the world where seismic activity is not a major concern, so I am not speaking from experience and claim no expertise in this subject.
I agree with the others that a cantilever is a bad idea, but I do not see the value in allowing movement on one side of the stair either. During a seismic event, it seems me that the edge with the movement would batter the wall. I would be inclined to tie the stair slab to both walls such that they are forced to move in sync.
BA
RE: Design of stair supported on walls