stair landing beam

[celikus]

Do we need to put beams on the landing stairs with two arms? Should the beam be at floor level or on a landing? I see all kinds in practice. I also saw two quota beams. The short colon effect is worrying. How should we do the calculations? Thanks

 

[unver]

Hello My suggestion; To put a beam with less rigidity on the mezzanine landing of the stairs right in the middle of the floor height. Is there a short column danger when we put a beam like this? There is. The program calculates the statics, increases the moments according to the earthquake regulations and controls them with limit values, and if it gives a warning, it becomes a danger that we can control. The real danger; It is to assume the output of the calculation correctly by making a modeling error without knowing the program logic enough. The danger we can control is not a danger. Ünver ÖZCAN

 

[ersinmat]

Hello, This is a very important issue. We come across it all the time. How will we determine at what rate we will reduce the stiffness for earthquake and vertical loads? For example, does anyone say, "I am doing stiffness reduction at this rate, but I do not personally do more"? What should be our criteria for this reduction? It will be very helpful if we comment on this issue.