Bridge Building
Truss Bridge Structure in GR MI
Bridges are consructed to help us go over a river, chasm, road, or the like.
Bridge Basics
Because of the wide range of structural possibilities, this Spotter's Guide shows only the most common fixed (non-movable) bridge types. Other types are listed in the Bridge Terminology page. The drawings are not to scale. Additional related info is found on the other Terminology pages which are linked to the left.
The four main factors are used in describing a bridge. By combining these terms one may give a general description of most bridge types.
The three basic types of spans are shown below. Any of these spans may be constructed using beams, girders or trusses. Arch bridges are either simple or continuous (hinged). A cantilever bridge may also include a suspended span.
http://pghbridges.com/basics.htm
Step #1 Planning = Let's find an area that needs a bridge.
Click on Google Earth- Let's fly around the plant and look for a river chasm or road that looks like a bridge should be constructed their to help the people in the area.
a. What Latitude and Longatude is your area located at?
b. What types of materials should you construct your bridge out of?
c. Is there an easy way to get the materials to the site?
#2 Making reasoned choices...
Which Type of Bridge is the best suited for your area?
Study each type and then decide the kind of bridge you wish to construct.
The biggest difference between the types pf bridges is the distances they can cross in a single span. A span is the distance between two bridge supports, whether they are columns, towers or the wall of a canyon.
Types of Bridges
Basic Types of Bridges
Online Interactives
Construct a Bridge
https://www.crazygames.com/game/construct-a-bridge
NOVA
https://www.pbs.org/wgbh/nova/bridge/gamesans.html
Arch Bridge Building
https://feaoftruss.itch.io/feat-beta
Build the Bridge
Your goal is to use the pieces provided to create a safe path for the train to travel across to the tunnel.
Pick up pieces with your mouse (drag and drop.) You can rotate pieces be holding them up in the air and using the arrow keys to rotate them.
When you are ready, hit the "play" arrow to start the train
http://www.coolmath-games.com/0-build-the-bridge
www.physicsgames.net/game/Bridge_Builder.html
Another bridge-building puzzler. Use beams and suspension cables to construct a bridge that will allow the truck to reach the checkered flag.
Dinosaur Train Bridge https://pbskids.org/dinosaurtrain/games/bridgebuilder.html
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http://www.learn4good.com/games/simulation/build_bridge_across_canyon.htm
http://www.candystand.com/play/bridge
http://www.luckygamez.com/related/Bridge-Builder
http://www.smart-kit.com/s3052/bridge-building-game/
Bridge Building Facts and Tips
http://library.thinkquest.org/J0113129/DB~1.HTM
http://www.pbs.org/wgbh/buildingbig/bridge/basics.html
Which Bridge Goes Where?
http://www.pbs.org/wgbh/nova/bridge/build.html
How do we use the West Point Bridge designer program
#3 How do we Build them?
Check Out the timeline of the Brooklyn Bridge
What important things do we need to consider?
Bridges need to deal with the important forces called compression and tension. Compression is a force that acts to compress or shorten the thing it is acting on.. Tension is a force that acts to expand or lengthen the thing it is acting on.
What stressed acted upon this bridge that made it fail?
Close up Structure
http://pghbridges.com/basics.htm
http://www.bardaglea.org.uk/bridges/bridge-types/bridge-types-suspension.html
#4Building Virtual Bridges
Download the game below and construct bridges the train can cross
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http://www.sciencebuddies.org/science-fair-projects/project_ideas/CE_p007.shtml
Using the Westpoint Bridge design software you are going to build your own bridge and load test the structure.
http://bridgecontest.usma.edu/ -this is a free download if you want to practice at home.
http://www.newbaybridge.org/classroom/engineeringfor.html
Division | Record Load Ratio |
Up to and including grade 10 |
26.6
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Grades 11 and 12 |
40.6
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Technology students |
86.3
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Professional |
97.4
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In this video segment adapted from NOVA scienceNOW, learn about engineering innovations that could help detect a bridge's structural weaknesses before they become dangerous.
Google Sketch Up
We will now use Google Sketch up to design our own Bridges
Working with SketchUp is really easy. Let's practice using a few of the tutorials!
Building the Bridge Models
Can you believe it? This bridge was made out of spaghetti noodles!!!!!
Here's the fun part- Now you get to build a model based on your design. YOu may use any materials you can think of.
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The links above take you to: http://pbskids.org/zoom/activities/sci/#engineering
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Putting it together in a Movie
Using Win Movie maker include the following in your movie
1. Screen shots of your google design
2. Pictures of real bridges of the same type
3. Screen shots of the Bridge building Game.
4. Pictures of the place on google earth where you would locate your bridge
5. Pictures showing you actual model
6. Video clips of your interview
Hurrah's- The bridges were awesome!! You all did a great job!
Click here to go back to the Interactive Lesson Page