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| import plotly.graph_objects as go |
| import plotly.express as px |
| import matplotlib.pyplot as plt |
| import numpy as np |
| from sklearn import datasets |
| import sympy as sym |
| from sympy import symbols |
| from scipy.optimize import fsolve |
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| b = float(input('b = [mm]')) |
| fck = float(input('fck = [MPa]')) |
| fcd = round(fck*.85/1.5, 2) |
| fyk = float(input('fyk = [MPa]')) |
| fyd = round(fyk/1.15, 2) |
| d1 = float(input('d1 = [mm]')) |
| d2 = float(input('d2 = [mm]')) |
| Es = float(input('Es = [GPa]'))*10**3 |
| epsilon_se = fyd/Es |
| epsilon_su = float(input('epsilon_su = [per thousand]'))/1000 |
| epsilon_c2 = float(input('epsilon_c2 = [per thousand]'))/1000 |
| epsilon_cu = float(input('epsilon_cu = [per thousand]'))/1000 |
| beta = float(input('beta = A1s/As = ')) |
| MEd = abs(float(input('MEd = [kNm]'))*10**6) |
| d = input(f'd = [mm] (empty if unknown)') |
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| def steelArea(): |
| As_0 = initialValues.As_0 |
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| print('\nInsert integer number of tensed steel reinforcement (>=2): ') |
| num_As = int(input('n.:')) |
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| if (num_As < 2): |
| i=0; |
| while i<3: |
| print('\nMinumum bars number must be greater or at least equal 2: ') |
| num_As = int(input('n.:')) |
| i+=1; |
| if i==3: |
| num_As = 2; |
| print('\nNumber of tensed bars has been set to ', num_As) |
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| print('Insert tensed bars diameter (even number >= 12mm): ') |
| phi_As = int(input('Phi = ')) |
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| if (phi_As % 2) != 0 or phi_As < 12: |
| i=0; |
| while i<3: |
| print('\nDiameter must be even and greater than 12mm): ') |
| phi_As = int(input('Phi = ')) |
| i+=1; |
| if i==3: |
| phi_As = 12; |
| print('\nDiameter of tensed bars has been set to ', phi_As, 'mm') |
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| As = round(num_As * np.pi * phi_As**2 /4,4) |
| print('\nAs = ',num_As,'ϕ',phi_As,'mm = ',As,'mm^2') |
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| if As < As_0: |
| print(As,'<',As_0,'\nMore bars needed') |
| steelArea() |
| return As |
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| def steelArea1(): |
| A1s_0 = initialValues.A1s_0 |
| print('\nInsert integer number of compressed steel reinforcement (>=2): ') |
| num_A1s = int(input('n.:')) |
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| if (num_A1s < 2): |
| i=0; |
| while i<3: |
| print('\nMinumum bars number must be greater or at least equal 2: ') |
| num_A1s = int(input('n.: ')) |
| i+=1; |
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| if i==3: |
| num_A1s = 2; |
| print('\nNumber of compressed bars has been set to ', num_A1s) |
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| print('Insert compressed bars diameter (even number >= 12mm): ') |
| phi_A1s = int(input('Phi = ')) |
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| if (phi_A1s % 2) != 0 or phi_A1s < 12: |
| i=0; |
| while i<3: |
| print('\nDiameter must be even and greater than 12mm): ') |
| phi_A1s = int(input('Phi = ')) |
| i+=1; |
| if i==3: |
| phi_A1s = 12; |
| print('\nDiameter of compressed bars has been set to ', phi_A1s, 'mm') |
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| A1s = round(num_A1s * np.pi * phi_A1s**2 /4,4) |
| print('\nA1s = ',num_A1s,'\u03d5',phi_A1s,'mm = ',A1s,'mm^2\n') |
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| if A1s < A1s_0: |
| print(A1s,'<',A1s_0,'\nMore bars needed') |
| steelArea1() |
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| return A1s |
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| if d == '': |
| d = symbols('d') |
| class initialValues(): |
| xi_23 = .2593; |
| psi = 0.80952; |
| mylambda = 0.416; |
| xi = xi_23; |
| dd = sym.solve(b*psi*xi*d**2 *fcd*(1-mylambda*xi) + beta* ((b*psi*xi*d*fcd)/(1-beta)) *(d-d2) - MEd, d) |
| d = list(filter(lambda val: val >= 0, dd))[0] |
| print('\n\nd = ', d, 'mm') |
| As_0 = b*psi*xi*d*fcd/((1-beta)*fyd) |
| A1s_0 = beta*As_0 |
| print('As = ',As_0,'mm^2\nA1s = ', A1s_0,'mm^2\n') |
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| steelArea() |
| steelArea1() |
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| print('Set value of d:') |
| d = float(input('d = [mm] ')) |
| h = d+d1 |
| print('h = ',h, 'mm') |
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| elif d<=0: |
| print('Height must be positive!') |
| exit() |
| else: |
| d = float(d); |
| if d<=0: |
| print('Height must be positive!') |
| exit() |
| elif d > 0: |
| print('\nd = ',d,'mm') |
| class initialValues(): |
| As = symbols('As') |
| xi_23 = .2593; |
| psi = 0.80952; |
| mylambda = 0.416; |
| xi = xi_23; |
| As_0 = sym.solve(-b*psi*xi*d *fcd*(mylambda*xi*d - d2) + As*fyd*(d-d2) - MEd, As) |
| As_0 = list(filter(lambda val: val >= 0, As_0))[0] |
| A1s_0 = beta*As_0 |
| print('As = ',As_0,'mm^2\nA1s = ', A1s_0,'mm^2\n') |
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| As = steelArea() |
| A1s = steelArea1() |
| As |
| A1s |
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| print('d = ',d,'\nAs = ',As,'\nA1s = ',A1s) |
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