Thanks.
That's true. I have seen engineers here still call it that way though. That's why I am asking. Everything else including details remain the same except having bored piers under and more reo in slab /beam.
Hi,
AS2870 has this requirement for re-entrant corners of raft slab. Do I need to follow this when my raft slab is on piers, which is designed as fully suspended system? I believe this clause is for slab-on-ground only and there is nothing wrong if I don't arrange my piled footing this way since...
Hi Retrograde & Lomarandil, I agree that at design stage you can design vertical elements to allow them crack. But reducing the structure stiffness will reduce the earthquake input. The structure should get more earthquake before crack occurs. Simply put, I agree with the following design steps...
Hi Sonofatkins, the structure is not designed by me. I am just reviewing the model. They used Etabs to design the columns and walls (reinforcement etc) and footings (getting reactions). The stiffness of all walls are reduced to 0.35I and columns 0.7I. I understand they tried to model the cracked...
No, there is no basements.
In my opinion, if you run response spectrum, reducing the stiffness will make the structure softer and thus gets less seismic loads.
I just review an Etabs model from others and he adjust the stiffness modifiers for all members (wall, columns, slabs, beams) as per ACI suggestion. As per his computations, he used this model to design the vertical elements (concrete walls and columns) and retrieve the reaction to design the...
