Hurmet macros for civil and structural engineers

csMacros.txt

# Hurmet macros for civil and structural engineers

ab = """¢` A_b = (π d_b^2) / 4 = ?? in² `, bolt area"""


asc = """Find required reinforcing steel, ¢` A_sMin `

¢` x_c = (0.85 f_c′ b d) / f_yr = ?? in² `, parameter for next line of calculation

¢` A_1 = x_c - √(x_c² - (2 x_c M_u) / (0.9 d f_yr)) = ?? in² `, from CRSI Report 22

¢` A_2 = (b d· max(200 'psi', 3 √f_c′′)) / f_yr = ?? in² `, per ACI 10.5

¢` A_sMin = min(max(A_1, A_2), 1.33 A_1) = ? in² `

¢` A_sUsualMax = b d ρ_T = ?? in² `, maximum reinf ratio for which ¢` ϕ_b ` may be 0.9

¢` @test A_sMin < A_sUsualMax `"""


mc = """¢` a = (A_s f_yr) / (0.85 f_c′ b) = ?? in `, depth of Whitney stress block

¢` ϕM_n = 0.9 A_s f_yr (d - a//2) = ?? k·ft `, beam strength"""