PA - Ching IBC - 5 BUILDING HEIGHTS AND AREAS

What is the primary consideration for building designers when determining allowable heights and areas for a given occupancy?

Choosing the most costly and complicated type of construction
Meeting the criteria set forth in the code
Maximizing the economically viable building size (correct)
Speculative building for economic gain

In what chapter of the IBC are the criteria for allowable building heights and areas set forth?

Chapter 3
Chapter 1
Chapter 5 (correct)
Chapter 7

What is the goal in speculative buildings such as office buildings or retail uses?

Minimizing the allowable height and area
Maximizing the allowable height and area using the most economical construction type (correct)
Not considering construction type in building design
Choosing the most complicated type of construction

What task does the code analysis become after a building’s occupancy classification is determined?

Determining allowable heights and areas for the occupancy classification (D) Signup and view all the answers

What types of design choices impact the use of Chapter 5 for determining allowable heights and areas?

Both known uses design choices and speculative building design choices (B) Signup and view all the answers

What must the designer do when addressing the question of maximizing the economically viable building size?

Use an iterative process to maximize the space for a given building (D) Signup and view all the answers

What is the allowable building height in feet above the grade plane for Type V construction with sprinklers and occupancy classification S13D?

40' (12.2 m) (C) Signup and view all the answers

What is the allowable building height in feet above the grade plane for Type III construction without sprinklers and occupancy classification NS1,2?

50' (15.2 m) (B) Signup and view all the answers

What is the allowable building height in feet above the grade plane for Type IIA construction with sprinklers and occupancy classification A?

85' (25.9 m) (D) Signup and view all the answers

What is the allowable building height in feet above the grade plane for Type IV construction with sprinklers and occupancy classification S13R?

60' (18.3 m) (B) Signup and view all the answers

What was the primary consideration for maximizing the economic efficiency of a building using the iterative process mentioned in the text?

Achieving the maximum area with minimum investment in construction materials (C) Signup and view all the answers

What was the purpose of reorganizing the descriptions for allowable heights and areas in Chapter 5 of the building code?

To clarify and make more consistent how allowable heights and area are interpreted (C) Signup and view all the answers

What is the purpose of the definitions applicable to Chapter 5 in the building code?

To facilitate uniform application of regulations (D) Signup and view all the answers

What is the conservative way to calculate building area according to the text?

From outside face of wall to outside face of wall (C) Signup and view all the answers

What is included in building area at full value according to the text?

Areas within the horizontal projection of a floor or roof above (A) Signup and view all the answers

How should building height be measured according to the text?

To the average height of the highest roof (D) Signup and view all the answers

What does 'story' intend to mean as per the building code?

Occupiable or usable space contained by a floor below and a plane above (A) Signup and view all the answers

'Basement' is defined as what according to the building code?

A story, but one that is 'not a story above grade plane' (C) Signup and view all the answers

According to the text, what does 'building area' usually exclude?

Thickness of exterior walls (B) Signup and view all the answers

What is considered when determining if a level is 'a story above grade plane' according to Chapter 2 of the IBC?

The finished surface of the floor above the lower level relative to the grade plane (B) Signup and view all the answers

What should never be challenged by Authorities Having Jurisdiction according to the text?

The upper limit of allowable area calculated conservatively (A) Signup and view all the answers

What is the purpose of Table 504.3 in the context of building regulations?

To show allowable building heights in feet only (D) Signup and view all the answers

What is the distinction between categories A and B of construction types according to the text?

Category A has higher fire resistance than Category B (A) Signup and view all the answers

Why are heights expressed in two ways, based on the text?

To allow for flexibility in building design (C) Signup and view all the answers

What is the relationship between occupancy and allowable building heights according to the text?

Occupancy determines the allowable building heights (A) Signup and view all the answers

What does category A denote in the context of construction types?

Construction provided with increased fire resistance (D) Signup and view all the answers

What do the tables in Chapter 5 address according to the text?

Heights and areas based on occupancies and construction types (D) Signup and view all the answers

What is the purpose of the mass timber wood construction types included in the IBC according to the text?

To highlight the differences between different construction types (C) Signup and view all the answers

How are allowable values for height in feet or height in stories determined according to the text?

By finding the intersection of occupancy, construction type, and sprinkler conditions (D) Signup and view all the answers

"A" denotes construction that is "protected" with ____________.

"increased fire resistance" (C) Signup and view all the answers

What do Tables 504.3 and 504.4 include according to the text?

Criteria necessary to find allowable values for building areas and heights (D) Signup and view all the answers

What do Tables 504.3 and 504.4 show, based on the text?

Allowable building heights based on type of construction and sprinkler conditions (A) Signup and view all the answers

How are occupants typically chosen when using Tables 504.3 and 504.4 according to the text?

By selecting from a list of possible occupancies that fit the building design (C) Signup and view all the answers

What is the definition of building height according to the text?

The vertical distance from the grade plane to the top of the highest roof surface, excluding parapets but including pitched rafters (D) Signup and view all the answers

How is story height for the topmost floor measured according to the text?

To the top of sloping roof rafters or to the top of ceiling joists (B) Signup and view all the answers

How is basement defined according to the text?

A floor more than 6' above grade plane and more than 12' above finished ground level at any point (D) Signup and view all the answers

What does § 503.1.1 exempt from building height and area limitations?

Low-hazard, high-bay spaces, such as mills or foundries (A) Signup and view all the answers

What is required for Type I buildings with unlimited height and area according to § 503.1.3?

They do not require mitigations for unlimited-area building imposed on other construction types (B) Signup and view all the answers

What is included in § 503.1.4 regarding 'occupied roofs'?

Recognition of increased use of building roofs for open space in urban areas (B) Signup and view all the answers

What does § 503.1 allow with regards to 'fire walls'?

"Fire walls" can divide a single structure into a number of "separate" buildings (B) Signup and view all the answers

Under what conditions are multiple buildings on a single site considered as separate buildings according to § 503.1.2?

"Multiple buildings on a single site may be considered as separate buildings" if they meet aggregate area limitations based on the most restrictive occupancy (D) Signup and view all the answers

What does § 503.1.2 state about egress when multiple buildings are treated as one?

"Means of egress must also be carefully examined when multiple buildings are treated as one" (A) Signup and view all the answers