Maximum Pursantage Error in Beams

[eminakbas63]

Good day, I am currently a senior university student and I am trying to understand the logic of idecad. In some of the projects I've done, I'm getting the error that the maximum purchase has been exceeded. Especially in the final homework where I chose the floor type Z4, I got a lot of errors in beams compared to other floor types. I'm wondering if there is a different method than deleting and re-adding since I get this error on 15 or 20 beams. I'll be happy if you can help me. Thanks in advance...

 

[Levent Özpak]

Good afternoon, I'm a senior student at the moment and I'm trying to understand the logic of idecad. In some of the projects I've done, I get the error that the maximum pursantage has been exceeded. Especially in the final homework where I chose the floor type Z4, it is too much compared to other floor types. I got an error in the beam. Since I got this error in about 15 and 20 beams, I was wondering if there is a different method than deleting and adding again. I would appreciate if you could help. Thanks in advance...

Hello, -Maximum allowance (reinforcement ratio) problem in beams, design It is the increase of the required reinforcement area to meet the bending moments above the limit value given in the regulations and standards.This ratio is given as 0.002. (TDY 2007 item 3.4.2.4, TS 500 item 7.3. Equation 7.5) -When the soil type is changed, Spectrum coefficient and accordingly Floor forces and the cross-section effects change.Therefore, it is possible to form section deficiencies. You can't resolve the invalidity by deleting the elements and re-entering them. When you have an analysis, the same deficiencies occur again. You can solve them by increasing the dimensions of the load-bearing element, using higher strength concrete, making arrangements to reduce the cross-section effects in the carrier system, etc.

 

[eminakbas63]

Thank you very much for your feedback. As you said, deleting elements and adding them again is problematic. I was using C25 concrete as static material in my project, I made C30, and I still get the same errors. I don't know how to change the section effects. Can you help with that?

 

[eminakbas63]

Good afternoon, I am currently a senior university student and I am trying to understand the logic of idecad. In some of the projects I've done, I'm getting the error that the maximum purchase has been exceeded. Especially in the final homework where I chose the floor type Z4, I got a lot of errors in beams compared to other floor types. I'm wondering if there is a different method than deleting and re-adding since I get this error on 15 or 20 beams. I'll be happy if you can help me. Thanks in advance...

Hello, -The problem of maximum reinforcement ratio in beams is that the required reinforcement area to meet the design bending moments exceeds the limit value given in the regulations and standards. This ratio is given as 0.002. (TDY 2007 item 3.4.2.4, TS 500 item 7.3. Equation 7.5) - When soil type is changed, Spectrum coefficient and accordingly Floor forces and section effects change. Therefore, the occurrence of cross-section deficiencies is a possible situation. -You cannot solve section deficiencies by deleting elements and re-entering them. When you have an analysis done, the same inadequacies occur again. You can solve them by increasing the dimensions of the load-bearing element, using higher strength concrete, making arrangements to reduce the cross-sectional effects in the carrier system, etc..

Thank you very much for your feedback.[/quote] As you said, deleting elements and adding them again is problematic. I was using C25 concrete as static material in my project, I made C30, and I still get the same errors. I don't know how to change the section effects. Can you help with that?