Machine-translated by Google. Questions are authored in English.
Top

Discussion

The dynamic analysis of a building is mandatory under IS 1893 when the building is

  • A.regular in plan and elevation and of moderate height
  • B.situated in the lowest of the four seismic zones
  • C.constructed in load bearing masonry rather than a frame
  • D.tall or irregular beyond the limits set for the static method

Answer: D

Where one mode dominates and the geometry is regular, distributing an empirically computed base shear over the height is adequate. Height, setbacks, soft storeys and plan irregularity all bring higher modes and torsion into play, and only a dynamic analysis captures those.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.