Sufficient number of mods menu

[yeni_kullanici]

Friends, where exactly is the menu or form we use to change the number of modes?

 

[HakanŞahin]

Hi, In the Structure Tree, right click on Analysis\Modal Analysis\Modal Analysis Cases\Modal, click properties row.

 

[yeni_kullanici]

Thank you very much. There are a few more things. In the project in the 1st appendix, shear safety is not provided only on the ground floor P20 curtain, although I increased the curtain thickness, it was not a solution. 2. In general, the screen gives a warning of 7 times in the geometry control, since the screen aspect ratio is already less than 7, it should be modeled like a column. What is the reason for the warning? 3. Why minor axis in polygon columns depends on user interaction. What is the geomtric polygonal shape, its already neutral axis and its angle with the principal axes can be determined? Good work,

 

[HakanŞahin]

Project not added

2. In general, the screen gives a warning of 7 times in the geometry control, since the screen aspect ratio is already less than 7, it should be modeled like a column. What is the reason for giving a warning?

The program gives such a warning because you are entering data with the Panel object. While we usually use the panel object for elements that provide 1/7 ratio, we use the column object for elements that do not. However, you can also use the panel object for elements that do not provide the 1/7 ratio. In this case, you can ignore the warning.

3. Why does the minor axis depend on user interaction in polygon columns? What is the geomtric polygonal shape, its already neutral axis and its angle with the principal axes can be determined?[ /quote] I don't quite understand what you mean by minor axis user interaction. The axis image in the plan you mean is an axis created related to the growth directions of the column. The column has nothing to do with major/minor axes. No matter how you enter the polygon columns, the neutral axes of the column are automatically found with iteration. Select any polygon column. In the Reinforced Concrete menu, go to the End Force Diagrams tab. In the plan view, you will see the position of the 3 and 2 axis and the angle of the major axis relative to the global axis. ] Some examples: Good work

 

[yeni_kullanici]

Thank you for your attention, as far as I understand, the subject in the Polygon column is user input, but the program calculates the neutral axes in the result dialogs and does all the checks with the calculated data in the geometric form. I would be very happy if you comment on the P20 curtain in the project.

 

[HakanŞahin]

As far as I understand, the subject in the polygon column is user input, even though the program calculates the neutral axes in the result dialogs and then performs all the controls with the calculated data in geometric form.

Yes, your question is better understood with the screenshot you added. The minor axis possibility in the polygon column editor is related to the rotation of the axis set in the editor, it has nothing to do with the calculation, while the neutral axes are automatically found with iteration as I wrote.

I would appreciate it if you could comment on the P20 screen in the project?

We couldn't look because your project is not attached to the message. If you add, we can comment. Good work

 

[yeni_kullanici]

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Curtain plane in the 2nd basement floor curtains on the 1' axis When I want to effect a horizontal soil thrust outward, it does not accept it. Another problem in defining shear horizontal loads is that it affects its direction in the opposite direction, so I eliminate it by entering the numerical value minus, but it would be better if you check it. I will be glad if you help

 

[HakanŞahin]

https://rapidshare.com/files/899631216/test.rar

1. In the attached project, shear safety is not provided only on the ground floor P20 curtain. Even though I increased the curtain thickness, it was not a solution. What could be the reason.

Select the P20 panel. Click on the panel reinforced concrete. Mark all floors. For all floors (basement 1 and 2, the names are different but it doesn't matter), make the panel thicknesses 30 cm and uncheck the DS column. After the analysis, the cutting safety of the ground floor P20 panel will be ensured. (In the 1st and 2nd basements, the plan length of the panel is entered 1 cm different than the upper floors... This is because the thickness of the panel after the elevator panel is 26 cm instead of 25... You can check it if you haven't done it on purpose.) You can cancel the "Apply" option. The first basement K48 beam remains as the non-saving element. If you make it 60/30 from 50/30, the problem is solved. If you do a geometry check, you will see that there is a typical thread continuity problem for rib elements. For rib/cassette floorings, the typical tooth should be defined, and the typical teeth of continuous rib/cassette flooring should also be continuous. To do this, you can edit with the Modify/Object Edit/Tile/Specify Typical Thread command. The beam between the P5 and P3 panels on the ground floor is divided, but the names of the divided parts are not the same. We usually give the names of these beams the same. It is not necessary in terms of analysis, but it will be noticed when reinforcement is made. I mentioned it in my previous message, but let me note again: We recommend that you enter the only elements that do not provide the 1/7 ratio as column elements. There is a special problem with the 1' axis when I want to exert a horizontal soil thrust out of the curtain plane on the 2nd basement floor curtains on the 1' axis. If you define the load one by one by selecting the panels on the 1' axis, direction can be given.

Another problem in defining the curtain horizontal loads is that it affects the direction in the opposite direction, so I eliminate it by entering the numerical value minus, but it would be better if you check .

Since you cannot specify the direction due to a special problem for the 1' axis, you see the result that it affects in the opposite direction. Normally we can give direction. (try it on a single panel) On the other hand, giving a negative value and specifying the direction yourself will not cause a problem. It is necessary to define a raft floor space in the area where the elevator shaft is located... In addition, the elevation of the raft plate under the elevator shaft and the elevation of the panels are incompatible. You can find an example of how to define an elevator shaft from the link below.

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