Steel stairs and tank access walkway: modeling and drawings (Advance Steel, Inventor)

Engineering consultancy projects (BRAVNN, 2024 and 2025). Tank access for a plant with storage tanks: a stair with landings and handrails that climbs between the tanks, and a raised walkway with stairs. I modeled them in Advance Steel, checked the stair in AxisVM, numbered parts and assemblies, and drew the 8 A1 drawings with the bill of materials; the stair has 34 grating steps and 3 landings and weighs about 2.4 tonnes. Also my first job at BRAVNN: a steel stair with landings, handrails and tension rods for an industrial plant, modeled in Inventor with Frame Generator (C 140 x 60 and I 140 sections, 205 parts in 7 assemblies), with its general arrangement drawing.