Beam Nmax and ground safety error

sara

New Member
Hello; The project I made will be used as a workshop and a store in the industry. I could not fix the beam Nmax and ground safety stress errors in the project, I would appreciate if you could help with the solutions, good work everyone.
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Re: BEAM NMAX and GROUND SAFETY ERROR HELP
"sara":s5j1r8yz" said:
Hi, my project will be used as a workshop and store in the industry. I could not fix the beam Nmax and ground safety stress errors in the project, if you can help with solutions I'm glad and have a good work everyone
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Hello, in TBDY 2018 7.4.1.2 article, as beam In structural system elements to be dimensioned and equipped, the design axial compressive force must meet the condition Nd <= 0.10 Ac fck. Otherwise, these elements will be dimensioned and equipped as columns according to 7.3. The program does not allow the beams to be designed as N>0.10 Ac fck. Therefore, this error message is given.Detailed information is given in the beam report "Beams that do not meet the Nd<=0.1*Ac*Fck condition" For the solution of beam axial load problems; -Beam width/height can be increased.( Beam dimensions can be customized Increasing the beam height will increase the beam stiffness and therefore the beam axial force. It may not always be a solution.) -Higher strength concrete can be used. - Arrangements can be made on the carrier system to reduce the axial load on the beam. -Beams can be sized and equipped as columns according to TBDY 2018 article 3.3. (Dimensioning and reinforcement of beams as columns is not done automatically in the program. It is under the control of the user.) If you want to ignore the Nmax error in the program and apply a reinforcement solution like a column; In the Beam Reinforced Concrete dialog, in the Capacity design tab, check if the capacity ratios are below 1. If the capacity ratios are below 1, the beam is operating at minimum. (If the capacity ratios are above 1, the longitudinal reinforcements can be increased and by defining the web reinforcements to the beam, it can be reduced below 1) There is a huge difference between the soil bearing capacity value and the soil base pressure values. Depending on the current situation of your project, the ground improvement option may need to be evaluated. In addition, the ground bearing power value seems a little low. I suggest you confirm that it has been prepared according to TBDY 2018 Section 16. Note: -There is a rigid basement floor in your project. We recommend that you choose the upload account method in Analysis Settings.
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-In the final analysis, we recommend making analysis by reducing the finite element widths of slab, curtain and raft. Good work
 
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