A large building starts swaying wildly from side to side during small earthquake

Question

A large building starts swaying wildly from side to side during small earthquakes. What can be done to lessen the amount of swaying? Explain A) add large mass to the top of building B) add more supports to stiffen the building C) A or B D) neither a nor b

A large building starts swaying wildly from side to side during small earthquakes. What can be done to lessen the amount of swaying? Explain A) add large mass to the top of building B) add more supports to stiffen the building C) A or B D) neither a nor b

A large building starts swaying wildly from side to side during small earthquakes. What can be done to lessen the amount of swaying? Explain A) add large mass to the top of building B) add more supports to stiffen the building C) A or B D) neither a nor b

Explanation / Answer

Neither A or B

When mass is added to the top of the building , the force as a component increases both on horizontal and vertically about the swing. The chance s collapse is more in this case.

if we stiffen and not within the elastic limit, the chance of wreckage is more as well. Any building should have few mm/ cm of swaying limit for withstand earth quakes.

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