Bridge Classifications
this type of bridge is most often used for short crossings.
Beam Bridge.
What shape is considered to be the strongest? Why?
Triangles. They possess structural rigidity, meaning their shape is fixed by the length of their three sides and cannot change without bending, stretching, or breaking. (Pressure is distributed between sides)
What is the oldest type of bridge structure?
Beam Bridge
What was Petra's task?
This bridge uses a network of triangles to create a rigid framework, capable of carrying heavy loads.
Truss Bridge
Take a look at my bridge. What went wrong?
The bridge lacks a central support, it has too large of a gap between the ribs. This is evident by where the bridge broke, which was at the center.
What state has the most covered bridges?
Pennsylvania has the most covered bridges of any U.S. state, with approximately 211 to 213 remaining structures.
What was Isabella's task?
Isabella had to clap after anyone said anything (excluding questions).
This design often features tall towers that have the function of carrying much of the structure's load.
Suspension Bridge
What were the first bridges made of?
The earliest crossings were fallen trees, stepping stones, and tangled vines or ropes.
What is the maximum weight that an average bridge can hold?
An average standard U.S. highway or interstate bridge is designed to safely handle a maximum gross vehicle weight of 80,000 pounds (40 tons).
What was Veronika's task?
Veronika had to ask for a set of playing cards, but proceed to do nothing with them if someone did offer a deck.
Sections of this bridge extend outward from supports, a, allowing construction to progress over an obstacle without needing support directly beneath each new section.
Cantilever Bridge
What is the force formula?
F (force)=m (mass) x a (acceleration)
Which of the following is closest to the total number of bridges in the United States?
According to the latest edition of the Report Card for America’s Infrastructure, there are currently 607,380 bridges in the U.S.
What was Irene's task?
Irene had to call out all of the cats that were in the slides.
This movable bridge uses a counterweight system to help raise a section of roadway out of the way.
Bascule Bridge
What is the longest bridge in the world?
Danyang-Kunshan Grand Bridge in China
Has measurements of 164.8 kilometers (102.4 miles), part of the Beijing-Shanghai High-Speed Railway.
What was Anna's task?
Anna had to mention 3 sports outside of her introduction.