Curtain Header Zone

[zalman]

Hello Friends... In our attached project, the header area does not shrink in P01, P02, P07, P08 curtains after the critical floor. Reinforcement areas are also calculated normally. There is the same problem in the A block of the same building, but there is only the P01 and P02 curtains there. So I'm comparing the incoming effects and I didn't see any problems. What do you think is the reason for this, is there a situation we missed or did we make a mistake in the model. Thanks in advance, Good work...

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[Levent Özpak]

Hello Friends... In our attached project, the header area does not decrease in P01, P02, P07, P08 curtains after the critical floor. The reinforcement areas are also calculated normally. The same problem exists in the A block of the same building, but only P01 and P08 are there. P02 curtains have this problem. So I compare the incoming effects and I couldn't see any problem. What do you think is the reason, is there a situation we missed or did we make a mistake in the model. Thanks in advance. Have a good work...

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Hello, In the project you added, the length of the P01-P02-P07-P08(30/180) curtains in the plan is more than 20% on the 10th floor. In this case, the starting point of the critical wall height (Hcr) is taken from the 9th floor (TBDY 2018 article 7.6.2.2) If the curtains on the 10th floor are defined as 30/150, the critical wall height (Hcr) is 2lw and from the top of the rigid basement floor Good work

 

[zalman]

Hi Friends... In our attached project, the head area does not shrink in P01, P02, P07, P08 frets after the critical floor. Reinforcement areas are also calculated normally. There is the same problem in the A block of the same building, but there is only the P01 and P02 curtains there. So I'm comparing the incoming effects and I didn't see any problems. What do you think is the reason for this, is there a situation we missed or did we make a mistake in the model. Thanks in advance, Good work...

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Hello, In the project you added, P01-P02-P07 -P08(30/180) curtains length in plan decreases by more than 20% on the 10th floor. In this case, the starting place of the critical wall height (Hcr) is taken from the 9th floor. (TBDY 2018 item 7.6.2.2) If the walls are defined as 30/150 on the 10th floor, the critical height (Hcr) is taken as 2lw and from the top of the rigid basement floor. Good work

I could not fully interpret the regulation. I don't want to comment because some things are just written. For me, there is a shortcoming here, so the reductions in the lower floors are also okay, but the growth of all floors for the top floor seemed a bit meaningless to me. Considering that such a situation exists in a 50-storey building, we need to see all floors at a critical level for 1 floor. I will fix the curtain as a column, thank you for your attention to overcome this, regards...