bridges
DESCRIPTION
"Bridges" is a PowerPoint for primary and secondary students that provides an overview of the different types of bridges and their uses. It also highlights careers in infrastructure development specific to bridge building and maintenance. Additionally, this lesson can be paired with a "Bridge Building" activity.TRANSCRIPT
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Bridges
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Why do we need bridges?
OGo over obstaclesORiverOLakeORoadOCanyon
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Common Types of Bridges
OArchOBeamOCantileverOSuspensionOTruss
![Page 4: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/4.jpg)
Arch
![Page 5: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/5.jpg)
Beam
![Page 6: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/6.jpg)
Cantilever
![Page 7: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/7.jpg)
Suspension
![Page 8: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/8.jpg)
Truss
![Page 9: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/9.jpg)
![Page 10: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/10.jpg)
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Careers with Bridges• Salary: $51,000 – $61,000• Education: Bachelor’s• Experience: 0-2 years
Civil Engineer
• Salary: $50,000 – $57,000• Education: Bachelor’s • Experience: 0-2 years
Geotechnical Engineer
• Salary: $51,000 – $55,000• Education: Bachelor’s• Experience: 0-2 years
Structural Engineer
• Salary: $26,000 – $34,000• Education: High School Diploma/G.E.D.• Experience: 0-2 years
Heavy Assembler
• Salary: $43,000 – $57,000• Education: Bachelor’s• Experience: 0-2 years
Construction Coordinator
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Civil EngineerO Designs and supervises construction
projects such as airports, bridges, channels, dams, railroads and roads
O Responsibilities also include estimating costs and personnel and material needs, preparing proposals and establishing completion dates
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Geotechnical EngineerO Prepares and inspects projects
involving drilling and exploration
O Responsible for geological mapping, report writing, site characterization, numerical modeling and analysis of excavations/supports
![Page 16: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/16.jpg)
Structural EngineerO Designs load-bearing structures or structural
elements, such as buildings, bridges or roadways
O Performs analysis of building materials for use in construction
O Develops blueprints or specifications for use during construction and ensures all projects comply with applicable codes and regulations
O Determines cause of structural failures, damages and defects through site investigations
O Provides reports detailing investigations and assessment of damages to the structure
![Page 17: Bridges](https://reader038.vdocuments.net/reader038/viewer/2022103015/54bbd2ec4a7959404a8b4595/html5/thumbnails/17.jpg)
Heavy AssemblerO Assembles fabricated parts to
relatively large or heavy subassemblies and complete units
O Tests and calibrates parts and mechanisms to meet tolerances and product specifications
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Construction Coordinator
O Coordinates construction scheduling and communication, and acts as a liaison to project management concerning bids, subcontracting, progress and delays
O May be responsible for estimates, schedules, materials and purchase order
O Supervises the installation of equipment and components in assigned field
O Requires technical knowledge to assist installing contractors
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Build Your Own BridgeO Using newspaper (1), masking tape
(6 ft) and straws (15), create a bridge
O Judging is based onO Mass of your bridgeO Mass your bridge can supportO Final score = mass supported/mass of
structureO Bridge must span 1 foot