Curtain trim combination (ver.5.511)

[emrah]

I tried to show it in the pictures. Isn't it necessary to use the moments on the inside of the wall when calculating the slab moments in shear wall joints? Also, shouldn't the combination of loading, which gives a more negative situation, be used in this example?

 

[emrah]

 

[merkan]

The reinforcement arrangements in the floor-curtain combinations in basement curtains are really a problem. In the finite element solution of the slab, the support conditions on the curtain sides should be defined as being restrained against rotation and translation, and I also think that the slab forces should be investigated for the portion of the slab's share of the horizontal forces caused by the earthquake and carried by the basement walls.

 

[emrah]

The fact that in the finite element solution of the slab, the support conditions on the wall edges are defined as being kept against rotation and translation

"The column and curtain are fixed support on the slab edges. If the edge is beam, the support is simple if the plate is discontinuous, and recessed if it is continuous." I got the text above from the help pages of idecad. It takes into account the situation you said. As time passed and there was no answer, I started to think that I could not explain the subject fully. :mrgreen:

 

[HakanŞahin]

In "discontinuous floors supported on the curtain", that floor is considered as retained on the support. The problem here is that we do not consider the negative moment additions in the discontinuous support. But we show the moment. If you want to take this moment into account in "discontinuous slab supported on the wall", you can write that additional value on the appropriate support in slab reinforcements.

 

[emrah]

If you want to take this moment into account in "discontinuous flooring with shear support", you can write that additional value on the appropriate support in flooring reinforcements.

I do as above

The problem here is that we do not take into account the negative moment additions in the discontinuous support.

Why is it not taken into account?

 

[merkan]

This problem is experienced especially in floors that work in the short direction and are attached to the curtain from the short side. I wonder if such a correction can be made; In the transition from slab calculations to reinforcement detailing, if the amount of upper and lower reinforcement on the discontinuous edges connected to the shear wall is detailed by taking into account the cross-sectional forces on the support and not below a certain ratio (such as 0.0025), would we be asking a lot (if we do not deal with changing the slab reinforcement in such cases) :roll :

 

[musamusa]

Hakan, can we interfere with the upper left moment? I wanted to know if there is a problem if we don't. respects

 

[HakanŞahin]

We cannot directly intervene in the moment, we intervene in the reinforcement. In addition, we can specify that the floor is fully held on the edge of the curtain with the option of "this curtain carries the console floor". If we say that it is fully held, a larger negative moment will occur in that support on that floor. Depending on the situation, the engineer can make any decision he wants.