When Ontario
1 answer:
You might be interested in
The image of the elevation and wall section is missing, so i have attached them.
Answer:
Number of concrete blocks = 1020 blocks
Number of lintel blocks = 240
Number of plain blocks = 780
Explanation:
First of all, we'll find the net area of the wall as follows:
The height of the wall is 17' - 4", so we need to convert it to ft, thus, h = 17' + (4/12)' = 17.33'
So, Gross wall area = 80′ × 17.333' = 1,387 ft²
From the image, there are 4 doors, thus, Area of doors = 4 × 10′ × 12′ = 480 ft²
Thus, Net area = Gross wall area - area of doors
Net area = 1,387 – 480 = 907 ft²
We are told that the block is 8 inches length by 16inches width. Thus, converting to ft; (8/12)ft by (16/12)ft.
So area of one block = (8/12) x (16/12) = 128/144 ft² = 0.88889 ft²
So, number of blocks per ft² = 1/0.88889 = 1.125 blocks
So, there are 1.125 blocks per ft²
Thus, Number of concrete blocks = 907 ft² × 1.125 blocks per ft² = 1,020 blocks
From the image attached, there are five rows of lintel blocks, located at 4′, 8′, 12′, 16′, and 17′-4″. The bottom three rows pass through the doors and are only a total of (80′ – (4 × 10′) ) = 40′ long .
The top two rows are 80′ long. Thus, there is 40 feet (4 × 10′) of lintel block above the doors.
Lintel blocks = (3 × 40′) + (2 × 80′) + 40′ = 320 ft
Number of Lintel blocks = 320′ × 12 in per ft / 16″ = 240 blocks
Number of Plain blocks = 1,020 blocks – 240 blocks = 780 blocks
