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Soft Story Structures and Failures

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Questions and Answers

What is the primary characteristic of a soft story in a building?

It lacks commercial areas or large openings on any floor.

It contains multiple shear walls for added stability.

It has a rigid structure capable of withstanding lateral loads.

It has one or more levels that are significantly weaker against lateral forces. (correct)

How does the International Building Code (IBC) define the reduction in load resistance for a soft story?

70% or greater between floors. (correct)

No specific percentage stated in the IBC.

30% or less compared to the floors above.

50% between floors.

Which design feature is commonly found in soft story structures?

Spacious areas with large openings instead of shear walls. (correct)

Extra solid load-bearing floors above.

Multiple shear walls on every floor.

Narrow doorways that limit access to commercial spaces.

What was a contributing factor to soft story building failures during the February 2023 earthquake in Turkey?

<p>The significant reduction in load-resisting capability of soft stories.</p> Signup and view all the answers

Which of the following best describes a potential risk associated with soft story buildings?

<p>High susceptibility to structural failure during seismic events.</p> Signup and view all the answers

Study Notes

Soft Story Definition

Soft story: A building level significantly less rigid against lateral forces than levels above and below.
IBC definition: Reduction in load resistance of 70% or more between floors.
Characteristics: Windows, doors, spacious areas, or lack of shear walls on certain floors.

Soft Story Failures

Factors contributing to failures during the February 2023 Turkey earthquake:
- Combining soft-story issues with other potential factors, is necessary to investigate.

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Description

This quiz explores the concept of soft story buildings, their definitions, characteristics, and the factors that contribute to their failures during seismic events such as the Turkey earthquake in February 2023. Test your knowledge on building safety standards and the impact of structural design.