InClass6_Week10

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George Brown College Canada *

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1013

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Mechanical Engineering

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Jan 9, 2024

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ARCH 2007 Fall 2021 In-Class Activity 6 (Week 10) Students’ names: Student ID #s Signature Neil Junio 101002015 NJ 1. Examining Exit requirements in Midland building (1.5/4)? * Instruction: Check 3.4. OBC Ref. Changes required (Y/N) 1 1 st storey Is one exit sufficient (Y/N, and why)? No of Exits No, atleast 2 exits are required. Except as permitted by Sentences (2) to (4) and (6), every floor area intended for occupancy shall be served by at least two exits. 3.4.2.1. No, it has more than one already Max. Travel Distance 45m Travel distance to an exit shall be not more than 50 m from any point in a service space referred to in Sentence 3.2.1.1.(9). 3.4.2.3 No Width of central corridor 375 x 6.1mm = 2287.5mm 3.4.2.1. Yes, central corridor must be wider. 2 Other storeys Is one exit sufficient (Y/N, and why)? No of Exits No, at least 2 exits are required. 3.4.2.1. B No 2 nd storey with dormitory-style sleeping: Width of central corridor OL=67 67 x 18.4mm = 1232.8mm 3.4.3.2. 3.3.3.3 Yes 4 th storey with 10 x 3-bed units: Width of central corridor OL = 30 18.4mm x 30 = 552mm 3.4.3.2.(2) Yes 2. Determine the Stair configuration in Midland building (2.5/4) * check occupancy types, occupant loads and the area of suites to determine the egress requirements OBC Ref. 1 | P a g e
1 Configure the stair in Midland. Check the existing stair and determine if changes are required, assuming that all upper floors have 10 x 3-bed units (Y/N?) (0.5/2.5) Width Existing: 1200mm Min. required: 1650mm 9.2mm x 30 = 276 Yes, changes are required. 3.4.3.2. Headroom Existing: 3600mm minimum required: 2050mm No, changes not required 3.4.3.5 Intermediate Landings Existing: 2400 x 1240 min. required: 1100mm No, changes not required 3.4.6.3. Top/ bottom Landings Existing: 2400mm x 1520mm Min. required 1100mm No, changes not required 3.4.3.4 2 Design a straight flight of stair for Midland (after change of use): show calculations, (1/2.5) 9.2mm x 30 = 276mm. The minimum required width for stairs is 1650mm. 3.4.3.3. Floor 2 is B-2. GFA = 769m^2. 10.0m per person = 77 persons Width of risers: 9.2mm per person, = 708.4mm Number of risers: 3.6m floor to floor height (GF to 2F), 18 risers Riser height: 3.6m / 18 = 200mm Stair run: max. 255mm Total length of flight: 255 x 18 = 4.59m 3 2 | P a g e
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