Engineering measures to reduce the occurrence of resonance

Question 1

resonance

Answer 1

major earthquake impact on buildings

Question 2

How can buildings be modified to become earthquake proof/ reduce the amount of damage?

Answer 2

• Change the height of the building
• Move most of the weight to the lower floors
• Change the shape of the building
• Change the type of the building materials
• Change the degree of attachment of the building to its foundations
• Reduce slope angle by excavating to create flat ground

Question 3

Why do buildings need to be modified

Answer 3

• Multi-storey buildings can sway, especially towards their tops
• If built close together, one can crash into another
• A stepped profile gives stability against lateral forces
• Non-symmetrical and complex design buildings increase the vulnerability to ground movements
• Asymmetrical structures will twist and move back and forth = these forces can make them more susceptible to collapse