301226 - Residential Building Assessment Answer

Assignment Task :

Overview 

The assignment contains two sections. Students are required to select ANY TWO questions from SECTION A (20 marks) and answer all questions in SECTION B (20 marks). The word limit for the assignment is 3000. Suggested solutions should be derived from critical analysis. 

SECTION A 

In this section, please select and answer only TWO of the following three questions. All questions carry equal marks. There is no point in answering more than two major questions as only the first two read will be awarded marks. 

Note: Students who are found to have submitted a plagiarised report or committed plagiarism will be severely penalized. 

Answer ANY TWO of the following three questions. 

QUESTION 1 

Compare four Passive Solar Design (PSD) principles or strategies that can be adopted for residential building design in a cold/cool climate and tropical climate.

QUESTION 2 

Brick veneer houses are very popular in Australia and it is foreseeable that Australians will retain a strong market preference for brick veneer houses. Discuss three advantages and two disadvantages of brick veneer construction.  

QUESTION 3 

Compare four advantages of using trussed roof system to the use of traditional timber roofing framing for residential building.  

SECTION B  

Answer ALL questions in this section 

Overview 

Your project home is to be constructed using timber framing in a non-cyclonic wind classification zone – category N2. You are required to design the timber framing 

members in accordance with the AS1684 Residential Timber-Framed Construction. 

To answer the questions in this section, you are required to utilise the appropriate  AS1684 and Hyspan tables, floor plans and elevations, located on vUWS under 

Assessment 3 folder. 

QUESTION 1 TO 6 – Wall and Roof framing (16 marks) 

Using the tables from AS1684, calculate the minimum size of the nominated timber 

members using Section A-A of your project home. NB: Drawings indicate a tiled, 

Q1. Calculate the truss span.

Q2. Determine the size of common wall studs (Notched). Use Stress Grade F8 (2 marks, this includes listing the parameters). For this question assume that the top plate has the same nominated size as the bottom plate (Q3). 

Q3. Determine the size of bottom plate (Not trenched). Use Stress Grade F17

Assume that we replace the trussed roof with a traditionally constructed ‘coupled roof’. For the span across the laundry, hall and WC to the bathroom (and assuming that the roof is configured as detailed below with a load-bearing wall between the WC and bathroom) determine the minimum size of each of the roof members nominated, given that you must use SEASONED timber or Hyspan as stated. (Rafters at 450mm centres) 

Q4. Calculate the Rafter span.

Q5. Determine the size of the rafter. Use Stress Grade F5 

Q6. Determine the size of underpurlin (continuous span @ 2.4m). Use Hypsan

Q7. Calculate the height of building 

Q8. Calculate the number of bracing units required for your house, for each wind direction; i.e. the wind direction towards Elevation C and Elevation B. Use Option S1 

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