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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. // Constants
  5. #define CONCRETE_STRENGTH 25  // MPa
  6. #define STEEL_STRENGTH 415    // MPa
  7. #define FACTOR_LOAD 1.5       // Load factor for safety
  8.  
  9. // Function prototypes
  10. float calculateEffectiveDepth(float totalDepth);
  11. float calculateMomentCapacity(float b, float d, float fck, float fy, float As);
  12.  
  13. int main() {
  14.     // Variables for beam dimensions
  15.     float width, totalDepth, effectiveDepth;
  16.  
  17.     // Input beam dimensions
  18.     printf("Enter the width of the beam (in mm): ");
  19.     scanf("%f", &width);
  20.  
  21.     printf("Enter the total depth of the beam (in mm): ");
  22.     scanf("%f", &totalDepth);
  23.  
  24.     // Convert to meters for calculation
  25.     width /= 1000;
  26.     totalDepth /= 1000;
  27.  
  28.     // Calculate effective depth
  29.     effectiveDepth = calculateEffectiveDepth(totalDepth);
  30.  
  31.     // Beam dimensions for concrete and steel strength
  32.     float b = width;             // width of the beam (in meters)
  33.     float d = effectiveDepth;    // effective depth (in meters)
  34.     float fck = CONCRETE_STRENGTH; // Concrete strength (MPa)
  35.     float fy = STEEL_STRENGTH;    // Steel strength (MPa)
  36.  
  37.     // Example area of steel reinforcement (in mm^2)
  38.     float As = 500; // mm^2
  39.     As /= 1000000;  // Convert to m^2
  40.  
  41.     // Calculate moment capacity
  42.     float momentCapacity = calculateMomentCapacity(b, d, fck, fy, As);
  43.  
  44.     // Print results
  45.     printf("Effective depth of the beam: %.2f meters\n", effectiveDepth);
  46.     printf("Moment capacity of the beam: %.2f kNm\n", momentCapacity);
  47.  
  48.     return 0;
  49. }
  50.  
  51. // Function to calculate effective depth (assuming cover is 50 mm)
  52. float calculateEffectiveDepth(float totalDepth) {
  53.     const float cover = 0.05; // 50 mm cover to steel (in meters)
  54.     return totalDepth - cover;
  55. }
  56.  
  57. // Function to calculate moment capacity
  58. float calculateMomentCapacity(float b, float d, float fck, float fy, float As) {
  59.     const float alpha = 0.85; // Concrete strength reduction factor
  60.     float fc = fck * 1e6;     // Convert to Pascals
  61.     float fyt = fy * 1e6;     // Convert to Pascals
  62.  
  63.     // Moment capacity formula
  64.     float momentCapacity = alpha * fc * b * d * (d - 0.5 * (As * fyt) / (b * alpha * fc));
  65.     momentCapacity /= 1e6; // Convert to kNm
  66.     return momentCapacity;
  67. }
  68.  
Success #stdin #stdout 0s 5284KB
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Standard input is empty
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Enter the width of the beam (in mm): Enter the total depth of the beam (in mm): Effective depth of the beam: -0.05 meters
Moment capacity of the beam: 0.01 kNm
https://ideone.com/wHf7DD
language:
C (gcc 8.3)
created:
131 days ago
visibility:
public

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