BCGBC4010A Apply structural principles to residential low-rise constructions

Structural principals - Loads

Primary loads

Calculating loads
You will need to refer to the information on windward/leeward and wind load rates to answer the following questions.
Question 1
What is the wind load rate on the windward wall?
A.	+1.5 kN/m2
B.	-1.5 kN/m2
C.	+0.8 kN/m2
D.	-0.8 kN/m2
The correct answer is A - +1.5 kN/m2. 

Question 2
Use the formula wind loads to surface = area x wind load rate to calculate the wind load on the windward wall. Choose from one of the following areas.
A.	-81 kN
B.	81 kN
C.	-43.2 kN
D.	43.2 kN
The correct answer is B - 81 kN. The wind load on the windward wall is 54 m2 x 1.5 kN/m2 = 81 kN.

Question 3
Calculate the wind load on the leeward wall.
A.	43.2 kN
B.	-43.2 kN
C.	81 kN
D.	-86.4 kN
The correct answer is B - -43.2 kN. The wind load is 54 m2 x -0.8 kN/m2 = -43.2 kN.

Question 4
Calculate the wind load on the windward roof.
A.	43.2 kN
B.	162 kN
C.	-86.4 kN
D.	86.4 kN
The correct answer is D - 86.4 kN. The wind load is 108 m2 x 0.8 kN/m2 = 86.4 kN.

Question 5
What is the wind load on the leeward roof?
A.	-162 kN
B.	86.4 kN
C.	162 kN
D. 	8 kN
The correct answer is A - -162 kN. The wind load on the windward roof is 108 m2 x 
-1.5 kN/m2 = -162 kN.

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