In SAP2000, in material properties mander stress-strain curves are added by default for unconfined and confined conditions. How much default tensile strength of concrete is considered in SAP2000 as per Mander's curves?
Pulkit Dilip Velani
One of the popular thumb rule is inputting tensile strength as 10% of compressive strength.
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Prabhakar Gundlapalli
I agree with Mr. Pulkit's answer. 10% of Fck is a good and reasonable estimate. As the strength goes high, tensile stress limit comes down, and concrete becomes brittle. One should keep this in mind.
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