CIVL 3016 Building Superstructure Assignment

Question 1 – Loading on structures (3 Marks)

Discuss the differences between a live load and a dead load with specific reference to the loads from the project you selected for your report. How are these loads applied differently during the design process? In providing your response, discuss requirements for combinations and factors used in Limit State Design that are mentioned in the subject content with specific reference to AS/NZS 1170.0:2002 Sections 2 and 4, and AS/NZS 1170.1:2002 Sections 3-4.

Expectation: 150-200 words.

Question 2 – Structural actions (3 Marks)

Why does the cross-sectional shape and orientation (Major x-x or Minor y-y axis) of a beam cross-section have such a major influence over its structural performance? In providing your response, quantify the impact of shape and orientation with a simple, and practical example (use a different example than those the module!).

Expectation: 100-150 words.

Question 3 – Prestressing (3 Marks)

Watch the below video. Use your knowledge and understanding of prestressing to explain what is seen in the video including what is happening at the start of the video (with reference to the stage of stressing), and then the failure itself. Discuss the likely contributing factors to this incident with reflection to subject content. Use video snapshots and annotation to assist your discussion as needed.

What can you do on your future construction sites to ensure mistakes like this are not repeated? Focus on key moments during the construction of a PT slab where mistakes could have been made.

Expectation: 150-200 words.

1. https://www.youtube.com/watch?v=BGaoMn28ccI

Question 4 – Steel beams (5 Marks)

Picture this: You are on a site inspection of our Bankstown case study, and you have been tasked to check the roof framing (rafters, purlins, and fly bracing). The photo on the next page is taken from the south-west corner of the structure.

1. Firstly, use the drawing snapshots below the image to identify the structural steel sections utilised by the 2 rafters shown by the red arrows. For those 2 rafter spans, discuss the purlins, bridging, and fly bracing that you observe in the site photo, and compare to the specifications shown in the drawings. Ensure you discuss anything which is different to the drawings. Use additional snapshots and annotation to assist your discussion as needed.
2. Use your understanding of the strength and failure modes of steel beams to explain the structural implication if the fly bracing shown by the yellow arrow was missing or not connected! In supporting your response, quantify the issue by utilising ASI (2016) chapter 5 moment capacity tables. The note on drawing S050 from our Coles case study can also aid your discussion for the importance of the fly bracing.

   Expectation: 300-400 words.

   

   Question 5 – Connections (3 Marks)

   What is the impact of the column restraints on the effective length and load capacity of a typical column? Comment on both typical concrete columns and steel columns. In providing your response, reflect upon your observations and photos from prac 3 (or just the lab notes if you could not attend) and refer to AS4100 Fig 4.6.3.2 provided below.

   Expectation: 150-200 words.

   

   Question 6 – Structural failures (4 Marks)

   Watch the below 2 videos. Use your knowledge and understanding of steel structures to discuss the likely contributing factors to each collapse separately with reflection to subject content. Pause and screenshot the videos then add annotation to aid your discussion.

   What can you do on your future sites to ensure mistakes like these are not repeated? Focus on key moments during the steel erection sequence.

   Expectation: 200-300 words.

   1. https://www.youtube.com/watch?v=jkq7sbEIzU8
   2. https://www.youtube.com/watch?v=l6wEsbi1syw

   Question 7 – Design and construction options (3 Marks)

   With specific reference to the subject content in all relevant subject learning modules, what different materials and systems could we utilise for comparable beams in commercial suspended slabs? In providing your response, refer to the materials, member cross-sections and the specific systems covered throughout this subject (there were 5 main types of beams covered in this subject…).

   Expectation: 150-200 words.

   Question 8 – Module reflection (3 Marks)

   Reflect upon all 12 subject learning modules. Relevant to the role of a construction professional, what do you consider to be the single most important takeaway for each – and why?

   Expectation: 200-300 words.

   Question 9 – Subject reflection (3 Marks)

   Reflect upon the entire subject.

   1. What single concept from this subject could you explain to family and friends that would have the greatest impact on their appreciation of the design and construction of building superstructures?
   2. Which of the 12 modules would you recommend extending to add more content? What additional content would be beneficial to your role as a construction professional?
   3. How will the content in this subject benefit your career in construction? Why? How will you apply this learning?
   4. What is the significance of this subject in educating construction professionals who are more capable of meaningful conversations with engineers and who are more aware of design requirements to ensure compliance of their structure?

   Expectation: 200-300 words.

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