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New Member
THERE IS NO CHANGE IN THE R COEFFICIENTS ENTERED AND SELECTED IN THE PROGRAM. BEST REGARDS
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CHANGE R COEFFICIENT
- Thread starter murat mungan
- Start date
Levent Özpak
New Member
The R coefficient selected in the program is automatically calculated by multiplying the entered R coefficient with the 1.25th value in cases where the B1 irregularity (nth) coefficient is between 0.6 and 0.8 in the project. If there is no B1 irregularity in the project, the entered and selected R coefficient will be the same. The Behavior Coefficient according to the Building Bearing System is at the user's discretion. For example, R coefficient max 7 is entered in the system with High Ductility Level Framed Frame. However, if the AlphaS value is greater than 0.75, it should be calculated by the user according to the largest alpha S value from the R=10-4*AlphaS formula and entered in the Analysis Settings TDY options tab. Alpha S Values are published under the title of Earthquake Code General report/Shear Force Control.
murat mungan
New Member
THANK YOU VERY MUCH
HakanŞahin
Administrator
"murat mungan":2nuu4v2u" said:THERE IS NO CHANGE IN THE R COEFFICIENTS ENTERED AND SELECTED IN THE PROGRAM WHY IS THE CAUSE OF THIS, WHY DOES THE PROGRAM COEFFICIENT DEFINE THE NUMBER OF R COEFFICIENTS REQUIRED. ... We give the initial R coefficient value in the project general settings.After the analysis, the program can automatically reduce the R coefficient by multiplying the R coefficient by 1.25cmmin according to the 1. TDY item 2.3.2.3 (if it needs to be reduced according to your system) 2. If your building has a panel outside the rigid basement, The suitability of the R coefficient you entered is automatically checked during the report phase. The program will give you the alphas rate according to the R coefficient value you entered. According to the warning, you determine the new R coefficient according to the principles in item 2.5.2. Then you enter this value in the project settings and analyze again. If we look at the report you added , R=8 was taken in the system and item 1 was not applied (not required). you need to base on the warnings given by gram. If there is no warning, it is not necessary.