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"Shape and Structure of Bridges" Shape and Structure PPT Courseware 4
If we are on this side of the river and want to get to the other side, what options do you have?
What do you think are the disadvantages of this?
In ancient times, the most primitive and simple way was to place a few stones in the middle of the river
After people improved it, it became a relatively stable step.
Look, people lifted these stones into the air to create a stone arch bridge.
Stones are almost the only material of a stone arch bridge like this. Why don’t the stones fall down after it is so elevated?
Making our Chopstick Bridge
To complete such a design, in addition to chopsticks, there must be other auxiliary materials such as rope and tape. If we use chopsticks as the only material, we also need to build a bridge that can span more than the length of the chopsticks themselves. Do you think it is possible?
If you use chopsticks as the main material and want to design a bridge that can span the length of the chopsticks themselves, which structure would you choose and what shape would you design? Please discuss and communicate within the group and draw your designs on paper.
Extracurricular extension:
Can the chopstick bridge made of 9 chopsticks be made to have a longer span and bear the maximum weight? We continued to study this issue outside class.
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"Shape and Structure of Bridges" Shape and Structure PPT teaching courseware:
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"Shape and Structure of Bridges" Shape and Structure PPT Download:
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