Staircase submission

1. 8 sections

 section 1           section 2

  section 1           section 2

  section 1           section 2

 section 1           section 2

2. stairs in sketchup

 section 1

section 2

3. rendered stairs

4. explanation on the staircase

This staircase is located at the part beneath ground, connecting three floors together : the ground floor, a hallway platform and a lower floor. 

The material is roughed glass, which could ensure solar access to the lower levels, but also not dazzling for pedestrians. 

The shape of the staircase, if it's in a cross section view, could match the geometry of the building, but in a more organic way.