Frkninşaat
New Member
Dear Hakan, I have read your article in the forum, do you mean by pursantaj normal pursantaj or SG pursantaj value Evaluate a column according to three criteria. 1. Pursantaj 2. Normal force 3. According to shear force 1; If we had designed the column for axial force only, Nd would be a stand-alone criterion, then your last message would certainly be valid. However, a normal force and two-way bending moment come into play in column reinforced concrete. What you call Nd is one of these three values, and together with the moment values of M2, M3, you find the column margin (statically necessary margin = SG margin in column reinforced concrete). If exceeded, warning M is given. When Nd is small, pursanta may appear large, when Nd is large, pursanta may appear small and mislead you. Because, in the reverse effect of the earthquake, in the most unfavorable combination, Nd may be reduced or even seen in negative values. According to 2.; As a normal force, we understand that a column is forced by looking at the Ndmax value. (Nmax value is not the Nd value you ask) Regulation has limited it. The program also checks automatically as I wrote in the previous message. If the Nd of the column is greater than Ndmax it will already be stuck in the maximum force control. If exceeded, an E warning is issued. According to 3., Column shear safety control is done automatically and is printed in detail in reports. If it is exceeded, a K warning is given.