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The image on the right shows the newly opened Crossrail train station in London's docklands area - Leaving Cert DCG - Question C-2 - 2018
Question C-2
The image on the right shows the newly opened Crossrail train station in London's docklands area. The structure is based on a parabola and has been shaped as shown. ... show full transcript
Worked Solution & Example Answer:The image on the right shows the newly opened Crossrail train station in London's docklands area - Leaving Cert DCG - Question C-2 - 2018
Step 1
Draw the given elevation. The vertex of the parabolic curve ABC is located at B.
Answer
To draw the elevation:
- Begin by outlining the base of the structure. Make sure to accurately depict the lines showing the curvature.
- Next, draw the inner standard section, ensuring both sides mirror each other.
- Divide the right-hand side (RHS) of the elevation into equal parts for clarity, focusing on the curvature's gradient.
- Draw the right-hand curve segment by connecting points smoothly.
- Locate points on the left-hand side (LHS) of the parabola, ensuring they correspond to the feature heights.
- Finally, draw the curve on the left side, maintaining symmetry with the right.
Step 2
Step 3
Project the given plan, clearly showing how the points on the curve are located.
Answer
For the plan projection:
- Use the elevation to define points accurately on the curved section.
- Project these points from the elevation, ensuring consistent alignment and curvature representation.
- Draw a rectangular base section beneath the curve, showcasing the structure's foundation.
- Locate the extremities of the curved section clearly.
- Identify additional points along the curve, ensuring they conform to the parabolic shape.
- Finally, draw the curve itself, focusing on smooth transitions and accurate representation of the original design.