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Which of the following statements is true? A. Impact loads are equal to the sum of the magnitude of the loads actually caused and the magnitude of the loads had they been dead loads. B. Impact loads are equal to the difference between the above-mentioned entities.

Which of the following statements is true? A. Impact loads are equal to the sum of the magnitude of the loads actually caused and the magnitude of the loads had they been dead loads. B. Impact loads are equal to the difference between the above-mentioned entities. Correct Answer Only B

Explanation:

Impact loads

  • They are sudden or rapid loads applied on a structure over a relatively short period of time compared with other structural loads. 
  • They cause larger stresses in structural members than those produced by gradually applied loads of the same magnitude.
  • Impact load = Difference of the magnitude of the loads actually caused and the magnitude of the loads had they been dead loads.

As per IS 875 part 5, Impact load can cause deformation by hitting the structure and the structure itself at the actual place must be considered.

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