Block B Planning and Layout Flashcards
What is the diagonal dimension of a building that measure 28.9m x 23.7m (94’-10” x 77’-9”)? MATH
37.4m 122’ 8”
A square foundation has an outside diagonal dimension of 38.6m (126’ 8”), what is the outside length of the walls? MATH
27.3m 89’ 6”
A concrete slab measures 23.8m x 25.6m with a floor drain in the middle. If the drain elevation is 100.568m and there is a minimum 2% slope, what is the elevation at the edge of the slab? MATH
- 918m
* Minimum means the longest distance from the roof drain to the slab edge.
23.8/2 = 11.9
25.6/2 = 12.8
Longest Side = hypotenuse
11.9² + 12.8 ² = c ²
c = long side = hypotenuse
c = √ 305.45
c = 17.4771
Now we take the longest side and multiply by the slope to get the rise.
rise = 17.4771 x 2%
= 0.3495
floor drain + rise = Slab edge elev.
100.568 + .34495 = 100.9175 round off to = 100.918
A concrete slab measures 28.8m x 32.6m with a floor drain in the middle. If the slab elevation is 102.256m and there is a minimum 2% slope, what is the elevation at the drain? MATH
101.822
- 6/2 = 16.3
- 8/2 = 14.4
Minimum means we need to get the longest side which is our hypotenuse. To get the hypotenuse, we need to calculate using Pythagorean. a² + b² = c ² 14.4² + 16.3² = c² c = √473.050 c = 21.7497
To get the rise we need to get 2% of the longest side.
rise = 2% of c
= 21.487 x .02
= 0.435
Drain elevation = Slab elevation - rise
= 102.256 - 0.435
= 101. 8210 or 101.822
A concrete slab measures 33.5m x 36.8m with a floor drain in the middle. If the slab elevation is 105.256m and there is a maximum 2% slope, what is the elevation at the drain? MATH
104.921
Max 2% slope means that you use the shortest distance from the roof drain to the edge. 1/2 of 33.5m = 16.75
2% of 16.75 is the rise.
16.75 x .02 = 0.335m rise
105.256 Slab Elevation
- 0.335 2% slope over 16.97
= Roof Drain 104.921
A concrete slab measures 42.2m x 45.8m with a floor drain in the middle. If the drain elevation is 103.288m and there is a maximum 2% slope, what is the elevation at the edge of slab? MATH
103.710
Concrete form has a 90 degree curved edge the radius is 10m, find length of curved edge.
15.708
90° is a quarter of 360°, Therefore, we need to find the whole circumference of the circle. C = 2π(10) = 62.83319 divided by 4 is equal to 15.708
Concrete form has 90 degree curved edge the diameter is 15m, find the length of the curve.
11.781
2πr = circumference, 15/2 = 7.5 = radius. 2π7.5 = 47.1239 divided by 4 because 90 deg is a quarter of a circle. Now we get 11.781
What is the STC of a given wall assembly
the wall assembly number seems to change, do not SWAG – the assemblies with STC values are listed in the appendix towards the back of the book
Question about environmentally hazard material
Take out a permit and ensure proper containment?
First thing to do when setting up an area to prefab
- Review plans; level ground; make sure of equipment accessibility
At what elevation should drain tile or pipe be installed?
9.14.3.3(1) Answer: top of drain tile or pipe just below basement slab
What are the three types of grade rods used for surveying and layout?
Architects, Engineers & Metric
If the elevation at the curb is 30.582m (100.34’) and a 38.098m (125’) driveway has a 5% grade, what would the elevation be at the house?
32.487 m b) 106.59’
What is the distance between the property line and the building known as?
Set back
