InClass3(solutions)

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George Brown College Canada *

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3017

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Mechanical Engineering

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Apr 3, 2024

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____________________________________________________________________________________________ ARCH 3017 Winter 2024 In-class 3 Name: Student ID #s Signature 1. Encapsulated mass timber exterior cladding are used on a 50m 2 façade of a four-storey office which the fire fighting department cannot reach within 10 minutes. If each storey has an exposing building face of 12.5m 2 what is the maximum area of mass timber cladding that can be used on this facade? a 0.625m 2 of mass timber cladding per storey Vol. 1, Div. B, Part 3: 3.1.6.9. b 2.5m 2 of mass timber cladding on the exposing building face c 10% of the exposing building face if the Table 3.2.3.7. requirements have been met d Cannot be determined with given data 2. Under which of the following circumstances a 1h fire wall between two dwellings is not required to be constructed as a ‘fire wall’? a If there are no residential units above another unit Vol. 1, Div. B Part 9: 9.10.11.2.(1) b If the residential units are not exceeding 600m 2 c If the party wall starts from the roof slab of the basement d All party walls should be constructed as fire walls 3. Which of the following steel stud vertical fire separation is permitted to separate a 150m 2 open mezzanine used as a restaurant in a seven-storey office building, assuming each floor is 300m 2 ? a 31mm x 64mm studs spaced at 610mm and 65mm thick absorptive material and two layers of 15.9mm Gypsum board Div. B, Part 3: 3.2.8.1, 3.2.2.49 & SB-3 Table 1 (Steel stud walls) b 31mm x 64mm studs spaced at 406mm and 65mm thick absorptive material and one layer of 12.7mm Gypsum board c 31mm x 64mm studs spaced at 610mm and 65mm thick and one layer of 15.9mm regular Gypsum board d Both A and B can be used 4. Which of the following is not required to be considered a major occupancy according to the code requirement for exceptions for major occupancies? a 130m 2 office suite in a 450m 2 floor b 15m 2 helicopter landing area on a 150m 2 roof Div. B, Part 3: 3.2.2.8.(2) (helipad is F2 but excepted) c 30m 2 chemical plant in a 600m 2 floor d 45m 2 repair garage in a 450m 2 floor ARCH3017_In-class3

____________________________________________________________________________________________ ARCH 3017 Winter 2024 In-class 3 Name: Student ID #s Signature 1. Which of the following steel stud vertical fire separation is permitted to be used to separate two residential building to determine its size? a 31mm x 64mm studs spaced at 610mm and 65mm thick absorptive material and two layers of 15.9mm Gypsum board Div. B, Part 3: 3.2.8.1, 3.2.2.49 & SB-3 Table 1 (Steel stud walls) b 31mm x 64mm studs spaced at 406mm and 65mm thick absorptive material and two layers of 12.7mm Gypsum board c 31mm x 64mm studs spaced at 610mm and 65mm thick absorptive material and two layers of 12.7mm regular Gypsum board d This mezzanine is not required to be separated with a vertical fire separation 2. Which of the following is a large building ? a Three-storey office building with the building area of 500m 2 and one of its office suites with the area of 60m 2 has a 20m 2 open mezzanine used as an office b Three-storey office building with the building area of 500m 2 and one of its office suites with the area of 160m 2 has a 35m 2 open mezzanine used as a café c Three-storey office building with the building area of 500m 2 and contains 20m 2 mezzanine used as a storage d Both B and C are large buildings Div. A: Application & Div. B, Part 3: 3.2.1.1.(6).(a) 3. Determine the construction requirements and the unprotected openings permitted on an exposing building face of a non-sprinklered parking garage (the maximum area of unprotected openings and the maximum area of an individual unprotected opening). It is 13m long, 7m high, and 5.2m away from its closest building? a 2hr Non-combustible construction, 13m 2 of unprotected openings and 0.25m 2 individual opening b 1hr Non-combustible construction, 13m 2 of unprotected openings and 2.25m 2 individual opening c 1hr combustible or Non-combustible construction, 13m 2 of unprotected openings and no restriction on the area of individual opening d 1hr Non-combustible construction, 8.2m 2 of unprotected openings and no restriction on the area of individual openings Div. B, Part 3: 3.2.3. & Table 3.2.3.1.B, EBF=91m 2 , LD=2.6m, H/L<1:3, 9% 4. Encapsulated mass timber exterior cladding are used on a 50m 2 façade of a four-storey office which the fire fighting department cannot reach within 10 minutes. If each storey has an exposing building face of 12.5m 2 what is the maximum area of mass timber cladding that can be used on this facade? a 0.625m 2 of mass timber cladding per storey Vol. 1, Div. B, Part 3: 3.1.6.9. b 2.5m 2 of mass timber cladding on the exposing building face c 10% of the exposing building face if the Table 3.2.3.7. requirements have been met d Cannot be determined with given data ARCH3017_In-class3

____________________________________________________________________________________________ ARCH 3017 Winter 2024 In-class 3 Name: Student ID #s Signature 1. Which of the following is not required to be considered a major occupancy according to the code requirement for exceptions for major occupancies? A 130m 2 office suite in a 450m 2 floor B 15m 2 helicopter landing area on a 150m 2 roof Div. B, Part 3: 3.2.2.8.(2) (helipad is F2 but excepted) C 30m 2 chemical plant in a 600m 2 floor D 45m 2 repair garage in a 450m 2 floor 2. Under which of the following circumstances, a ‘combustible duct’ can be used in a building that is required to be non-combustible? a Combustible ducts are not permitted in non-combustible buildings b If the combustible duct is only a horizontal one Vol. 1, Div. B, Part 3:3.1.5.15 c If the connectors and plenums are non-combustible d If the combustible runs are used only in one storey 3. Encapsulated mass timber exterior cladding are used on a 50m 2 façade of a four-storey office which the fire fighting department cannot reach within 10 minutes. If each storey has an exposing building face of 12.5m 2 what is the maximum area of mass timber cladding that can be used on this facade? a 0.625m 2 of mass timber cladding per storey Vol. 1, Div. B, Part 3: 3.1.6.9. b 2.5m 2 of mass timber cladding on the exposing building face c 10% of the exposing building face if the Table 3.2.3.7. requirements have been met d Cannot be determined with given data 4. You are using two 150mm x 75mm steel columns to support a floor between a café with 20 seats and a cinema with 75 seats. Type X Gypsum Wallboard are used to cover these columns. Find the fire- resistance rating required for the columns and the minimum thickness of the Type X Gypsum wallboard that can provide the required FRR to the column whose mass is 14.3kg/m. a 2h. and 44.5mm thick Gypsum board b 1.5h. but M/D ratio is not sufficient to provide the required fire resistance rating c 1h. and 25.4mm thick gypsum board d 2h. but M/D ratio is not sufficient to provide the required fire resistance rating SB-2 M/D=31.8 ARCH3017_In-class3

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