crane construction challenge - university of cambridge · microsoft powerpoint - ccc_presentation...
TRANSCRIPT
![Page 1: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/1.jpg)
Crane Construction Challenge
![Page 2: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/2.jpg)
The Task• Design and make a beam for a crane. Your
beam must be at least 60 cm long.
• How many baked bean tins will it lift?
balancingweight
tower
beam
load
60 cm
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The Cambridge Skyline
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Tube Production Line
Person 1: The sticker
Person 4: The chief engineerPerson 3: The puncher
Person 2: The roller
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A Busy Construction Site
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All tower cranes have• Large counter weights• Large concrete base• Tower and beam are made from triangles.
This is called a TRUSS
Why don’t they fall over?
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Large Concrete Base
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The Counter Balance!
![Page 9: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/9.jpg)
Use Triangles
push
A diagonal tube is added to make 2 triangles. This is called a 'brace'.
OR
The square collapses
![Page 10: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/10.jpg)
Spot the Triangles
![Page 11: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/11.jpg)
Where to start?
triangle based
square based tetrahedron (very tricky!)
triangle based
• Where should you brace the structure?
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Erecting a crane!
![Page 13: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/13.jpg)
Erecting a crane!
![Page 14: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/14.jpg)
When it goes wrong!
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When it goes wrong!
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When it goes wrong!
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When it goes wrong!
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When it goes wrong!
![Page 19: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/19.jpg)
When it goes wrong!
![Page 20: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/20.jpg)
When it goes wrong!
![Page 21: Crane Construction Challenge - University of Cambridge · Microsoft PowerPoint - CCC_presentation Author: jj112 Created Date: 5/10/2007 10:25:08 AM](https://reader034.vdocument.in/reader034/viewer/2022050406/5f8342fc145cfd524e00e90c/html5/thumbnails/21.jpg)
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