Folded Paper Beam - Revision history

DT Online: Added Category

2016-11-23T09:13:22Z

Added Category

← Older revision		Revision as of 09:13, 23 November 2016
Line 77:		Line 77:

	[[Category:Primary]]		[[Category:Primary]]
			[[Category:Topics, Projects and Tasks]]
	[[Category:Structures Projects]]		[[Category:Structures Projects]]
	[[Category:Bridges]]		[[Category:Bridges]]

DT Online: Added Category

2016-11-01T15:59:43Z

Added Category

← Older revision		Revision as of 15:59, 1 November 2016
Line 78:		Line 78:
	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Structures Projects]]		[[Category:Structures Projects]]
			[[Category:Bridges]]

DT Online: Corrected Link

2016-09-16T12:24:31Z

Corrected Link

← Older revision		Revision as of 12:24, 16 September 2016
Line 15:		Line 15:
	* some '''[[Paper and Card\|A4]]''' sheets of paper or thin card		* some '''[[Paper and Card\|A4]]''' sheets of paper or thin card
	* two blocks of wood for supports ''(or you could use books for example)''		* two blocks of wood for supports ''(or you could use books for example)''
	* '''[[Pens, Pencils ~~and Scribers~~\|pencil]]''' and '''[[Rules and Straight Edges\|ruler]]'''		* '''[[Pens and Pencils\|pencil]]''' and '''[[Rules and Straight Edges\|ruler]]'''
	* '''[[Scissors\|scissors]]''' ''(these can also be used for '''[[Scoring and Creasing\|scoring]]''' folds before you bend them)''		* '''[[Scissors\|scissors]]''' ''(these can also be used for '''[[Scoring and Creasing\|scoring]]''' folds before you bend them)''
	* '''[[Paper Trimmer]]''' ''(if available)''		* '''[[Paper Trimmer]]''' ''(if available)''

DT Online: Added Template

2016-05-31T08:26:09Z

Added Template

← Older revision		Revision as of 08:26, 31 May 2016
Line 1:		Line 1:
	~~<big><big>'''~~What to Make:~~'''</big></big>~~		=====What to Make:=====

	''(Designers might call this the Design Brief and/or the Specification)''		''(Designers might call this the Design Brief and/or the Specification)''
Line 37:		Line 37:


	~~<div style="clear: both;"></div>~~
	=====Ways of Making:=====		=====Ways of Making:=====

Line 72:		Line 71:

	Think about bridges in your area. You may be able to visit some or '''[[Collecting Pictures of Bridges\|Collect Pictures of Bridges]]''' and '''[[Asking About Bridges\|Ask Questions About Them]]'''.		Think about bridges in your area. You may be able to visit some or '''[[Collecting Pictures of Bridges\|Collect Pictures of Bridges]]''' and '''[[Asking About Bridges\|Ask Questions About Them]]'''.


			{{Card Modelling Buyers Guide}}


	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Structures Projects]]		[[Category:Structures Projects]]

DT Online: Added links

2015-12-28T10:21:17Z

Added links

← Older revision		Revision as of 10:21, 28 December 2015
Line 69:		Line 69:
	* Making the bridge as a tube?		* Making the bridge as a tube?
	* Can you think of a fair test to prove that what you think is true?		* Can you think of a fair test to prove that what you think is true?


			Think about bridges in your area. You may be able to visit some or '''[[Collecting Pictures of Bridges\|Collect Pictures of Bridges]]''' and '''[[Asking About Bridges\|Ask Questions About Them]]'''.


	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Structures Projects]]		[[Category:Structures Projects]]

DT Online: Added Category

2015-12-28T10:15:32Z

Added Category

← Older revision		Revision as of 10:15, 28 December 2015
Line 71:		Line 71:


			[[Category:Primary]]
	[[Category:Structures Projects]]		[[Category:Structures Projects]]

DT Online at 10:14, 28 December 2015

2015-12-28T10:14:35Z

← Older revision		Revision as of 10:14, 28 December 2015
Line 40:		Line 40:
	=====Ways of Making:=====		=====Ways of Making:=====

	[[File:ScoringCard.jpg\|~~300px~~\|right]]		[[File:ScoringCard.jpg\|400px\|right]]
	Paper and thin card can be cut easily with '''[[Scissors\|scissors]]''' or a '''[[Paper Trimmer]]'''. Edges of tubes can be overlapped and glued by brushing on '''[[Glues and Pastes\|PVA]]''' or using a '''[[Glues and Pastes\|Glue Stick]]'''.		Paper and thin card can be cut easily with '''[[Scissors\|scissors]]''' or a '''[[Paper Trimmer]]'''. Edges of tubes can be overlapped and glued by brushing on '''[[Glues and Pastes\|PVA]]''' or using a '''[[Glues and Pastes\|Glue Stick]]'''.

Line 69:		Line 69:
	* Making the bridge as a tube?		* Making the bridge as a tube?
	* Can you think of a fair test to prove that what you think is true?		* Can you think of a fair test to prove that what you think is true?


			[[Category:Structures Projects]]

DT Online: Created article

2015-12-28T10:13:09Z

Created article

New page

<big><big>'''What to Make:'''</big></big>

''(Designers might call this the Design Brief and/or the Specification)''

Make a Beam Bridge strong enough to support a small model car or train across a gap of 250mm (25cm) using only a single sheet of paper or thin card.

[[File:PaperSheet2.png|400px|right]]
__TOC__

=====What to Use:=====

* some '''[[Paper and Card|A4]]''' sheets of paper or thin card
* two blocks of wood for supports ''(or you could use books for example)''
* '''[[Pens, Pencils and Scribers|pencil]]''' and '''[[Rules and Straight Edges|ruler]]'''
* '''[[Scissors|scissors]]''' ''(these can also be used for '''[[Scoring and Creasing|scoring]]''' folds before you bend them)''
* '''[[Paper Trimmer]]''' ''(if available)''
* '''[[Glues and Pastes|P.V.A. glue, Glue Stick]]''' or similar

=====Things to think about:=====

Place a sheet of thin card between two blocks of wood or books to create a simple beam bridge. Note that the card can hardly support its own weight and soon bends or deflects if an extra load is added.

Bridges have to support two loads: their own weight and any loads they need to carry. Their own weight is a fixed amount and is known as the '''[[Dead Load]]'''. The extra amount a bridge has to carry can vary as traffic passes over and it is known as the '''[[Live Load]]'''.

Think about how you can stop the paper or card beam from bending so much just by folding and/or rolling it.

=====Some ideas:=====

[[File:BridgeExperimentGroup.png|800px]]

<div style="clear: both;"></div>
=====Ways of Making:=====

[[File:ScoringCard.jpg|300px|right]]
Paper and thin card can be cut easily with '''[[Scissors|scissors]]''' or a '''[[Paper Trimmer]]'''. Edges of tubes can be overlapped and glued by brushing on '''[[Glues and Pastes|PVA]]''' or using a '''[[Glues and Pastes|Glue Stick]]'''.

When folding paper, and especially thin card, along its length, it is best to '''[[Scoring and Creasing|score]]''' the fold line using the back of a pair of scissors along a ruler or straight edge. This helps to ensure a good neat straight fold.

=====Testing Final Design:=====

[[File:PaperBeamCarTrainTest2.png|500px|left]]
When you have tried different ways of folding and rolling sheets of paper or thin card, decide how you will make your '''[[Beam Bridge Models|Beam Bridge]]''' and try it out to see if it works.

Make sure your design will have enough space for a flat road or railway.

Remember that roads and railways could go through a hollow beam as well as over.

=====Further work:=====

The length ''(or span)'' of the bridge is not allowed to change but your design will have altered both the width and the depth of the beam when compared with the original flat sheet of paper or card.

Which of these changes made the Beam bridge stronger - was it:
* Making the Beam Bridge narrower?
* Making the Beam Bridge deeper?
* Making the bridge as a tube?
* Can you think of a fair test to prove that what you think is true?