German 
French 
Spanish 
Portuguese 
Italian 
Arabic 
Russian 
Japanese 
Turkish Hello, How does the A2-A3 irregularity control in the report section of the program work? How and at what position should the axis and line required for the control be drawn? Can you show it as a screenshot on a small example? Also, is it possible to explain how the general logic of the control works? I would be very pleased if you could explain how it can be shown in this control that earthquake loads can or cannot be transferred safely in a building with a large floor space. good work.
A2-A3 Irregularity check
- Thread starter dabanlio
- Start date
HakanŞahin
Administrator
Hello,
TDY article 2.2.1.2' "The flooring systems must have a level of rigidity and strength to ensure the safe transfer of earthquake forces between the structural system elements. In cases where it is not sufficient, suitable transfer elements should be arranged on the slabs." The main point in the analysis is that the slabs are assumed to be infinitely rigid in their own plane. With this assumption, the displacements at the joint points will be calculated depending on each other. For this model, it is obvious that there should not be large gaps between the slabs. A2-A3 irregularity This is why the control is done. If the slab is considered to be infinitely rigid during the calculation, the slabs should be without gaps (or with enough gaps). Systems that do not have enough gaps should either be solved without a rigid diaphragm (with the response spectrum in the program) or the system should be operated as a rigid diaphragm."dabanlio":3rcc7yhe" said:
In the program, the A2-A3 irregularity control is on the floor strip (section) where the rigid diaphragm behavior is thought to be weak. mo formed in section consists of checking the ment. Axle and line selection determines the critical slab section. The top and bottom questions asked in the dialogue during the inspection indicate the columns above or below the floor section. According to the selection, the earthquake effects of the columns are taken. The moment in the slab section is investigated in the slab section. It is checked whether that moment can be safely carried by the section. Because if it carries it safely, it means that the effects are transferred safely. If it is unsafe, either the section or reinforcement should be increased or the structure should be resolved without a rigid diaphragm, as I mentioned above. Or the vacancy rates in the structure should be reduced."dabanlio":3rcc7yhe" said:
The rigid diaphragm should be passed through the points where it is thought that it will not be accepted, and sufficient number of controls should be made for each section."dabanlio":3rcc7yhe" said:
There is a step-by-step explanation in the help menu of the program. Good luck with..."dabanlio" :3rcc7yhe" said:
Thank you for your comments, Mr. I have reviewed the section you mentioned, but there are some points that I do not understand. I tried to show in the picture as much as I understood from the explanations in the booklet. I have a few questions at this point. 1 - When the column shear forces, the moment calculated in the calculation section in question, and the moment arm are considered, how does the moment arise from the shear forces parallel to the moment arm? (I think there is a transformation calculation for V calculation after tya and tyu calculation, I did not understand it completely) 2 - Is the location and cross section of this control correct (xx direction / mid-slab) ? (The axis and the line are in the coincident state. If the axis is used to calculate the moment arm of the control section and the line determines the control section, should the two always be in the coincident state?) 3 - Should the control be done in the other vertical direction (aa) section as well? 4 - Is concrete tensile strength meant by the concrete compressive shrinkage in the explanations? 5 - When insufficiency is found, is additional reinforcement recommended for laying? 6 - In case of inadequacy, with the additional reinforcements suggested, is the system acceptable to transfer earthquake loads safely, and therefore is it possible to make a solution with a rigid diaphragm? thanks...
HakanŞahin
Administrator
For column top and bottom nodal points, moment column vertical column shear forces are taken into account. This process is done for 4 earthquake loads in 2 directions. For example, in EX1 C01 column, global FXi force is taken into account and the angle of the axis is projected As a result, for the same moment arm, by taking shear forces perpendicular to the moment column, we perform an investigation in all 4 directions"dabanlio":pzwfcpbt" said:
Passing through C01-C02 and C03 to obtain the moment arm you have shown in the drawing You need to select the axle and give the delta amount up to "-e". The main point here is to find the moment with respect to the selected axis. So if you give the delta zero, the moment will be on the axis. You increase the moment arm with delta. The line knows the slab section. (such as thickness and width). As for your question, the two don't have to coincide. With Delta, you can change the moment column as much as you want."dabanlio":pzwfcpbt" said:
It's okay to do it. But there is no interrupted gap in that direction. I don't think it's necessary for TDY. [quote ="dabanlio""dabanlio":pzwfcpbt" said:
zwfcpbt"]4 - Does concrete compressive shrinkage in the explanations mean concrete tensile strength?[/quote] The stress resulting from the moment is compared with fcd Sigma= Moment/Strength moment < Concrete characteristic tensile calculation strength is being controlled.
" There is the amount of reinforcement that that section can carry with that moment and the As value is given accordingly. Otherwise, the section will not carry the moment. It is called "."dabanlio":pzwfcpbt" said:
This is the purpose of this investigation. It is essential to show that the earthquake loads are transferred safely. However, if you wish instead of this method, you can use another method. Good work, take it easy."dabanlio":pzwfcpbt" said: