KootK as mentioned - framing moments from lateral loads in the "fixed-fixed" model will be considered in the punching shear design. I generally do this check by hand.
KootK
Displacement is still well within limit with the wallumns ignored. Wallumns will be fixed for moments arising from lateral forces for the actual column design. No seismic design criteria.
Thanks KootK - always nice to have a sense check and a second opinion.
You raise good points re. the gravity design of the slab too. I always look at punching separately anyway - I find FEM results are generally a bit sketchy.
I have released the columns and the increase in top floor...
@KootK
A strap beam as you call it is common for house extensions in the UK.
Normally a client wants the rear ground floor wall removing, replacing this wall panel with a sufficiently stiff steel "box frame" is common. The bottom chord of the frame is usually encased in a 4" of concrete...
Hi - First time posting.
I am modelling a multi-storey building in reinforced concrete using SCIA Engineer 21.
The frame is 20 storeys and around 50m x 17m on plan. The construction is flat slab with blade columns typically 300mm x 10000mm and is stabilised by a series of shear walls and an...
