5. Structural Dynamics and Seismic

Earthquake Resistant Detailing — Quiz

Test your understanding of earthquake resistant detailing with 5 practice questions.

Practice Questions

Question 1

In the context of seismic design, what is the primary objective of 'capacity protection' for non-ductile elements?

Question 2

Consider a reinforced concrete column in a seismic zone. If the column has a cross-sectional dimension of $400 \text{ mm} \times 400 \text{ mm}$ and is subjected to an axial load, what is the minimum diameter of longitudinal reinforcement bars required as per typical ductile detailing codes (e.g., IS 13920)?

Question 3

A moment-resisting frame is designed with a 'strong column-weak beam' mechanism. If the sum of the design moment capacities of the beams ($\Sigma M_{ub}$) framing into a joint is $300 \text{ kNm}$ and the sum of the design moment capacities of the columns ($\Sigma M_{uc}$) at that joint is $400 \text{ kNm}$, what is the ratio $\frac{\Sigma M_{uc}}{\Sigma M_{ub}}$ and what does it imply about the joint's behavior?

Question 4

Which of the following statements accurately describes the role of 'energy dissipation devices' in earthquake-resistant structures?

Question 5

In ductile detailing of reinforced concrete beams, what is the maximum permissible spacing for transverse reinforcement (stirrups) in the plastic hinge regions, typically expressed in terms of beam depth ($d$) or longitudinal bar diameter ($\phi$)?