Excess reinforcement in the basement floor

B

BurakKD

New Member
Hello, There is no error as a result of the analysis, but when I examine the reinforcements, 1. In the attached project, the S05 column in the basement floor throws more reinforcement than the columns in the upper floor. In the P04 curtain in the 2nd basement floor, the hull reinforcement is thrown close to 13 in a row. I would be very grateful if you could let me know if you have any ideas on how to solve them. Thank you for your reply. NOTE: I know how to define a basement curtain by removing the height on the ground floor, but I cannot save the width of the curtain. Because the height is 450, the FILE IS ADDED.
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Hello My suggestions; --Build a frame on the F axis columns, (this is one of the reasons why the calculation doesn't save.) --Support the stairs (if you don't support correctly, you may not get the correct result in the earthquake calculation.) --Frame the ladder on the basement floor, on the beam or curtain where the lower arm will sit, --Reinforcement Select the vertical reinforcements Q12 from the selection, --Remove the fixings on the group curtains, you can fix them later if necessary, --Make the selection of Rx and Ry from the wizard, both will be A15, --Make calculations after making these selections, --The program guides you to 4/ It says to make 5 accounts, --Make an account again, --At this stage, it gives errors, you can correct these errors. Unver ÖZCAN
 
Unver, First of all, thank you for your answer. I took your suggestions into consideration. But I can't pass beams from F axis architecturally. Because of this, I can't create a framework there. I did what you said, but again, the sg pursantan in the column in the basement floor is very high. The program does not detect an inadequacy in the analysis result or an error in the report. What I don't understand is why the column thrown in 6 minor and 6 major directions on the ground floor shows an excessive reinforcement ratio of 12 18 even though I do not define a floor on the basement floor. Have I created a faulty model here or is there an ideological problem, I wondered about it. I would be very pleased if İdecad officials also respond. Thanks again for your answers in advance. I wish you good work.
 
When you enter the basement curtain, jumps occur in the internal forces of the columns with which the basement curtain is in contact. This affects both the shear strength and the longitudinal reinforcement of these columns. Therefore, in this project, the results in the basement floor are normal. It is not appropriate to define this floor as "rigid basement" without entering the floor. In cases where this floor cannot be combined with all other carriers, it would not be appropriate to choose this floor as a rigid basement, even if it is curtains on all four sides.
 
Ismail, thank you for your comments. When I define a floor to the basement floor, I get a relative floor offset error at this time because the height of the basement is 1.5 m. And floor loads affect the columns. Isn't that the wrong approach in this case? How do you think the best approach to this should be modeled? (Not defining that solid rigid without defining the slab etc.) I am waiting for your valuable opinions. Thanks again for your views.
 
"BurakKD":2v2lzbai" said:
Ismail, Thank you for your comments. When I define a floor to the basement floor, I get a relative floor drift error this time because the basement height is 1.5 m. And the slab loads affect the columns. This is also a wrong approach. Isn't it? How do you think the best approach to this should be modeled? (Not defining that solid as rigid without defining the floor etc.) I am waiting for your valuable opinions. Thank you again for your opinions. It would be appropriate not to mark the RijitX and RijtY columns for this floor in the settings.
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When I define a slab to the subbasement floor, I get a relative floor offset error because the subbasement height is 1.5 m. And floor loads affect the columns. Isn't this a wrong approach?
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Yes, it is wrong. Levent Bey offered you the right one.
 
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