/// <summary>
/// Calculates approximate fundamental period (T_a) where the seismic force-resisting system consists entirely of concrete or steel moment resisting frames
/// </summary>
/// <param name="T_a">Approximate fundamental period, in s</param>
/// <param name="N">Number of stories above the base</param>
/// <param name="note"></param>
/// <returns></returns>
public static double Eqn_12_8_8(int N, ref RecordedCalculation Calculation, string note = null)
{
string equationNumber = "12.8-8";
string expression = @"0.1 N";
string resultDisplay = @"T_a";
SubCalculation subCalc = new SubCalculation(_standard, @"Calculate the approximate fundamental period", Chapter, SectionNumber, equationNumber, expression, resultDisplay);
subCalc.AddVariable(new LaTexVariable("N", N));
double result = 0.1 * N;
subCalc.Result = new Time(result);
if (note != null)
{
subCalc.AddNote(note);
}
Calculation.AddCalculation(subCalc);
return(result);
}
