ICC System Architecture and Design 4

Question 1

According to the IBC, what is the maximum number of stories permitted for a Group R-2 occupancy building of Type V-A construction with an NFPA 13 sprinkler system?

Accepted Answer

5 stories

Answer

Per IBC Table 504.4, a sprinklered Group R-2 building of Type V-A construction is permitted up to 5 stories above grade plane.

Question 2

Under the IBC, the 'area of refuge' concept is primarily associated with which building system design element?

Accepted Answer

Accessible means of egress

Answer

Areas of refuge are required components of accessible means of egress, providing a safe waiting area for persons unable to use stairs during evacuation.

Question 3

In the ICC framework, what distinguishes a 'fire wall' from a 'fire barrier'?

Accepted Answer

Fire walls provide structural independence and allow buildings on either side to be treated as separate, while fire barriers do not provide structural separation

Answer

A fire wall provides structural independence between portions of a building, allowing each side to be treated as a separate building for area/height purposes; fire barriers do not confer this independence.

Question 4

Which seismic design category (SDC) triggers the most stringent structural system restrictions under the IBC?

Accepted Answer

SDC F

Answer

SDC F represents the highest seismic risk and applies to essential facilities in areas with the most severe ground motion, triggering the strictest structural system and detailing requirements.

Question 5

What is the purpose of a 'soft story' irregularity check in building system design?

Accepted Answer

To identify stories where lateral stiffness is significantly less than the story above, creating potential weak points

Answer

A soft story has lateral stiffness less than 70% of the story above, concentrating deformation during seismic events and requiring design mitigation.

(ICC) International Code Council Practice Test

(ICC) International Code Council Practice Test

ICC System Architecture and Design 4