AT4 一 Design for Bending for a Viewing Platform.:
• Individual task (Total of 35%)
• Due date: Week 12 Friday
• Content: Week 1 – 11
Viewing Platform
A viewing platform is proposed to be added on the far side of the gorge so tourists who have taken the cable car can view the gorge from the previously difficult to access side. The lifetime of the Viewing platform should be 30+ years before it needs to be replaced. The viewing platform. will overhang the edge of the gorge by 5m. The viewing platform. deck area will be 6.0m wide and 11.5m long. The deck will be supported by 2 identical beams as shown in the Figure 1.
Figure 1: Support Beam of the viewing platform.
The component you are going to investigate is the support beam of the viewing platform. You will need to determine the following:
Loads of the viewing platform. and any people who may be using it.
Bending Stress, Deflection and Shear Stress in the Support Beam.
Using a robust material selection process (selecting level 3 Granta materials or equivalent) you must:
• Considering the location, weather, other local considerations, and 30+ year durability, and select materials for the Viewing Platform deck, Safety Rails and Support Beam. (Many of these will be similar to A3 considerations)
• Produce a cross section for your Support Beam that can meet the required loads, and will have bending deflections less than 14mm.
• Because this is going into a National Park, your solution should minimise your environmental impact
• You may incorporate any other key factors you deem appropriate in your beam design solution.
You will need to produce an Individual proposal report (approximately 10 pages).
You report should include:
• a brief explanation of the project and scope or the report.
• a simple free body diagram of the support beam and loads you expect (self weight of the beam can be approximated as UDL of 2kN/m).
• a shear force diagram and bending moment diagram of loading on the beams.
• a summary of your research you think relevant to the proposal.
• a clear material selection process taking into account relevant requirements
• A final cross sections of the support beams and calculations supporting they can meet bending stress, shear stress and bending deflection requirements.