ARCH_Winter2022_Inclass5_Week9(Answers)(1)

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George Brown College Canada *

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1013

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Mechanical Engineering

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Apr 3, 2024

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ARCH 1013 Winter 2021 In-class Exercise 5 (Week 10) 30 min Work in groups (Show Calculations: 50% for calculations and 50% for answer) Name Student ID # Signature 1. 2. 3. 4. 1. Calculate the minimum width and thickness of footings required to support walls of Cassidy House Elevation B. (1.5/4). a). Width and thickness of the footing that could support exterior walls, if the floor joists span less than 4.9 m (three storey house and the same exterior wall) Cassidy is a Three-storey house, minimum thickness of footing = 450mm Three storeys of Brick veneer = 65 x 3 = 195mm Adjusted Footing width for Cassidy House = 450 + 195 = 645mm Thickness = (645-200)/2 = 222.5mm (Construction Notes 5: 200mm thick wall) References: Table 9.15.3.4., 9.15.3.5.(1).(a), and 9.15.3.8. b). You are adding a non-loadbearing masonry interior wall that is 8.5m high and 150mm thick to the basement of a house. Determine the minimum width and thickness of its foundation: First 5.5m = 200mm No of 2.7m segments = (8.5-5.5)/ 2.7m = 1.11…..1 segments, therefore 1 x 100 = 100mm Adjusted for 200+100 = 300mm Thickness = (300-150)/2 = 75mm, but min requirement is 100mm References: 9.15.3.6.(2) c). Floor joists mentioned in Question (1.a.) are supported by a masonry interior wall. Calculate the minimum width of the footings of this interior wall: Minimum width for a three storey= 500mm Adjusted for two-storey masonry: 500 + (3 x 100) = 800mm References: Table 9.15.3.4. and 9.15.3.6.(1) 2. Answer the following questions based on foundations details of Cassidy Elevation B. (1.5/4). a). What is the maximum height of finished ground the foundation wall can support, assuming that the foundation wall is 2.5m high? Reference: Table 9.15.4.2.A, Construction Notes Height of foundation wall is 2.5m, thickness 200mm. 15MPa and laterally supported at the top: 2.15m b). If you were to build this wall with 190mm thick ICF, determine the minimum vertical reinforcement required (use the height of foundation wall and ground found as in 2a) Reference: Table 9.15.4.5.B. Height of finished ground above finished basement floor is 2.15m, and the height of foundation wall is 2.5m (round up to 2.75m column) 10M @ 400mm o.c. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- HM_ARCH1013_Winter2022_In-class Exercise5_Week9

c). If you were to build this wall with unreinforced concrete blocks, what is the minimum thickness of the foundation wall? Reference: Table 9.15.4.2.A, Height of foundation wall is 2.5m (Column 4), and laterally supported at the top: finished ground above finished basement floor is 2.15m (round up to 2.2m): 290mm 3. Calculate the footing width required to support the external wall of Cassidy house (3-storeys) by assuming that it supports joists spanning 11.5m for first and second floors and 10m for the third floor. (1/4). W = w (εsjs/ storeys x 4.9) εsjs = (5.25 x 2) + 5 = 16.5m Footing thickness = 450x(16.5/ 3 x 4.9) = 505.1mm Adjusted for 3-storey brick veneer = 505.1 + 195 = 700.1mm Reference: 9.15.2.4.B ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- HM_ARCH1013_Winter2022_In-class Exercise5_Week9

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