golden gate bridge by: amy nguyen and heather hernandez
TRANSCRIPT
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Golden Gate Bridge
By: Amy Nguyen and Heather Hernandez
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Basic Information
• Location: In San Francisco, California
• What it is: A Suspension Bridge connecting San Francisco to Marin county
• Made of: Steel
• Who built it: There were 10 main people who worked on the construction of the Golden Gate
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Purpose of the Golden Gate Bridge
• The purpose of the Golden Gate Bridge is to connect San Francisco Peninsula to Marin County.
• Before they built the Golden Gate Bridge, anytime a person who would want to cross the San Francisco bay, they would have to take a ferry.
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Designing and Building
• The Architects that built the Golden Gate Bridge were Joseph Strauss, Charles Alton Ellis, and Irving Morrow.
• Joseph Strauss was the original designer of the bridge. The construction started in 1933 and opened in 1937.
• The Dimensions are 8,980 feet long, 220 feet above the water’s surface, and 746 feet tall.
This picture was the original design:
• The bridge took 12 years to design.
• They design it in 1921 and finished designing in
1930
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Cost of the Golden Gate Bridge
• It cost $35 million to build plus interest.
• It would cost $1.2 billion in 2003 dollars.
• It now costs $7, $6, or $4 to cross the bridge.
• Their estimated cost was $25 to $35 million to build the bridge initially.
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Unique Features
• It was the longest suspension bridge until the Verrazano-Narrows bridge opened in 1964.
• Ten men died during the construction.• On April 2011, 1,929,896,448 cars have traveled across.
• Night view of the Golden Gate Bridge looks very bright and beautiful.
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Our Opinion
• We think the Golden Gate Bridge was designed and made efficiently.
• The bridge itself looks very attractive. It’s features and qualities attract tourists.
• We wouldn’t have changed the design because we think it is already good.
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Structural Engineer
• A structural engineer designs structures such as buildings, bridges, and roadways. They also make blueprints and find possible failures, damages, or defects in a design.
• To be a structural engineer you need a B.E NG and B.Sc.
• The skills needed are reading, math, problem solving, time management, science, writing, etc. For a bachelor’s degree, you will need 4-5 years of education.
• Their salary can be anywhere from 41k-63k a year. On a day-day basis they would design structures on a computer or see how the construction of their design is going.
• They can also get a more advanced degree for their job or they can also be under the supervision of a more experienced engineer.
• Our opinion is that they have a very important job. We however wouldn’t be interested in this profession because there is other jobs that we feel like would be better suited for us.
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Cargo Bridge 2 levels 1-5
• Level 1: I built this bridge like this for it to support the person’s weight
• Level 2: I built this bridge so that the bottom joint would
support the top.
• Level 3: I didn’t add support on the bottom
because the ropes are already holding it up
• Level 4: One my 1st bridge, the little hill supported the weight. On the 2nd one, I did the same as level 3.
• Level 5: I used steel to support the fat elephant.
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Our bridge Information
• Weighs: 144.0 grams
• Length: 40 cm / 15.5 inches
• Width: 10 cm / 4 inches
• Height: 10.5 cm / 4.25 inches
• Cost Calculation: $16.35
We would want our ratios to be low because if it was an efficient bridge and it was low costing, it would be more convenient for the person buying it.
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What Our bridge looks like
Sides Design Bottom of our bridge design
Top of out bridge design
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Amy’s face in high definition(hair flowing in the wind)
The Amy Slide …