Introduction
Bridges can do many things. They have a big purpose in our lives. There are various types of bridges such as arch bridges, beam bridges, cable stayed bridges and suspension bridges. Bridges can be used for transporting goods, for driving on and much more!
Safety is a major factor for building a bridge, without safety bridges can be very dangerous they can break or sway putting the lives of people in danger. In 1940 on the Tacoma Narrows Bridge the bridge was affected by high winds making the bridge sway and turn over which then got the nickname Gallopin Gerdie .This webquest explores the safety and awareness of bridges
Task
Task: Read the information and instructions to answer the questions using the websites provided.
Q1: Fill in the gaps
In the picture of the ____ bridge on the 1st website the pillars are underneath the main part of the bridge so that they can ________ the weight of the bridge.
Bridges are designed so that they can _______ their own weight but if they cant __________ are used
Q2: Add the correct letters
Materials which help stop bridges been affected by high winds or natural disasters are
. C__________ and S_________
Q3: fill in the gaps
Maintain ___________safety and open roads for the ______________ public
Name 3 ways to help maintain the overall safeness of bridges
a.
b.
c.
Q4:
How do you think people test bridge loads?
____________________________________
what is the system people use to test bridge loads?
______________________________________
what network do they use?
Q5:
What are Metal Expansion joints ?
___________________________
What are they used for?
___________________________________________________________
.
Process
Step 1: Answer questions 1,2,3 go to the websites fill out the questions and add up our marks
Step 2 : Answer questions 5,6 go to the websites fill out the questions and add up our marks
Step 3: Add up your total score
Websites
Question 1: fill in the gaps
http://www.explainthatstuff.com/bridges.html
https://www.daelim.co.kr/eng/daelim/pr/NewsView.do?cd_mnu=EU035&idx=1708
Question 2 : add the correct letters
http://www.livescience.com/22317-smart-materials-earthquake-safe-bridge…
Question 3: fill in the gaps
http://www.5counties.org/docs/roadedu/rmchapter7.pdf
Question 4: answer the questions
https://www.hindawi.com/journals/ace/2012/493983/
Question 5: answer the questions
Evaluation
There are two points per question
Answering all the questions will give you 10 marks in total
Conclusion
From this you should of learnt how people balance the weight of bridges, how people test to see if bridges can stand natural disasters, how people test bridge loads and how people solve the problem of metal expansion. This webquest was about the overall safety and awareness of bridges.