Ash Control

bkrclk

New Member
Why is it written 0 next to ash values? If Idecad does ach control, where can I choose the option? How can I have A2 and A3 irregularity control done? Thanks
 
"bkrclk":vp0s6tm4" said:
ash values why it says 0? If Idecad performs ach control, where can I choose the option.
Your columns have normal ductility level. Analysis settings are mixed (curtains are high, columns are normal ductile) or You may have chosen normal (walls and columns are normal ductile). Ash is applied on columns with high volumetric reinforcement ratio ductility level (I think you mean ash instead of ach). If you solve the structure with high ductility level, you can see the Ash values.
"bkrclk":vp0s6tm4" said:
How can I have A2 and A3 irregularity control done?
You can check whether there is an A2-A3 irregularity in any floor in your building with the formulas given in Figure 2.2 and Figure 2.3 in the regulation.
 
thank you sir. I know how to do it according to the regulations, but I asked how we can do it in the program. When I modeled and modeled a structure with a void ratio of more than 0.33 with idecad, it did not give an irregularity error. Another question I would like to ask is when I have the analysis done with the built-in connection without creating a foundation in the building model, irregularities appear, but when I add a raft foundation and have the analysis done, the irregularity disappears on some floors. When we add the basis, why do the displacements change and the relative floor offsets change accordingly. Does the program pretend to have a spring at the bottom when performing fundamental analysis?
 
"bkrclk":339ydw6w" said:
thanks Mr. Hakan. I know how to do it according to the regulations but I asked how we can do it in the program. When I modeled a structure with a void ratio of more than 0.33 with idecad, it did not show any irregularity error.
Hello again, A2 -Check if A3 irregularity exists or not. If there is A2-A3 irregularity in the structure, mark the A2-A3 irregularity in the irregularities section in the Floor parameters. Whether A2-A3 irregularity or not, when you apply semi-rigid diaphragm solution in the program, You will have the opportunity to make reinforcements taking into account the vertical and earthquake effects.You can check the floor bottom and top reinforcement area from the 3D model (in version 7, the reinforcements are given as As.) In order to solve the full rigid diaphragm, you need to verify that the earthquake loads are transferred safely in the critical areas of the floor. You can use the /A2-A3 regulation check.
 
"bkrclk":3tjkoqoc" said:
Another question I would like to ask is when I have the analysis done with a fixed connection without creating a foundation in the building model, irregularities appear, but when I add a raft foundation and have the analysis, the irregularity disappears in some floors. Does the program pretend to have a spring at the bottom while performing the fundamental analysis?
When you apply a superstructure-foundation interactive solution, it is normal for the irregularity controls to be affected since the superstructure effects will be affected by the foundation displacements.
 
Thank you Mr. Hakan, but as far as I understand from article 3.7.4.1, the regulation says ash should be taken into account even if the ductility level is normal. I may have misinterpreted the article 3.7.4.1, but as far as I understand, the ash ductility level should also be considered in normal columns.
 
"bkrclk":2gtgmw6r" said:
thanks, Mr. Hakan, but the regulation says ash should be considered even if the ductility level is normal, as far as I understand from item 3.7.4.1. It needs to be taken into account.
There is the phrase "Definition given in 3.3.4.1 for the length of each of the column wrapping zones". The phrase "Length" seems to be particularly emphasized. The length of the wrapping zone is mentioned. The volumetric reinforcement ratio is not mentioned.
 
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