How do you make a paper bridge stronger?
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How do you make a paper bridge stronger?
If you take writing paper and you roll it tightly into a tube, you will see that it becomes harder to bend. By adding more layers of paper, you make it stronger.
How do you make a wooden bridge stronger?
Restricting the physical size of the bridge. Restricting the size and shape of structural elements of the bridge (the individual pieces of balsa wood) Restricting the amount of glue that can be used during the construction. Limiting the types of glue that can be used for connecting pieces of balsa wood.
What makes a bridge stay up?
They do it by carefully balancing two main kinds of forces called compression (a pushing or squeezing force, acting inward) and tension (a pulling or stretching force, acting outward), channeling the load (the total weight of the bridge and the things it carries) onto abutments (the supports at either side) and piers ( …
How do you build an arch bridge?
- Step 1: Understand the Science. Stone bridges all have arches supporting them.
- Step 2: Plan Your Bridge.
- Step 3: Pour a Concrete Footing.
- Step 4: Build Your Wooden Support Frame.
- Step 5: Cut Your Stones.
- Step 6: Place Arch Support Stones.
- Step 7: Reinforce Arch With Concrete (Optional)
- Step 8: Build Side Walls.
How much weight can an arch bridge hold?
Arch bridge number one held 21.5 pounds. The second arch bridge held 21 pounds so the average weight held by the arch bridges was 21.25 pounds. Truss bridge number one held 24 pounds. The second truss bridge held 23 pounds so the average weight held by the truss bridges was 23.5 pounds.
How do you make paper hold weight?
The answer to the problem is simply creating a group of columns and placing them under a sheet of paper. The columns will hold the weight if placed strategically beneath the paper platform. Lay aside one sheet of 8 1/2 by 11-inch paper. Make columns from the remaining 16 sheets.
How do you make an arch bridge with Popsicle sticks?
How to Make an Arch Bridge Out of Popsicle Sticks
- Cut rounded edges off four popsicle sticks so the sticks are 4 inches long, and place them in warm water for five minutes.
- Cut rounded edges off 68 popsicle sticks so the sticks are 4 inches long.
- Stack center of the bridge to create the high arch.
How do you make a stick bridge?
Cut four popsicle sticks in half. Place each of the halved popsicle sticks at both ends of each of the truss beams, in the middle position of the three-wide popsicle sticks. The component three-wide popsicle sticks of each truss will be glued together to form a truss three sticks thick.
How were the blocks of an arch bridge made?
The voussoirs were laid on top of each other to form the arch with the weight of each block bearing down on the previous block. A form of mortar was used to hold the blocks together, although this was not necessary for a well constructed arch bridge as the weight of the bridge pushed the block together.
How many sticks does it take to build a bridge?
The popsicle stick bridge is a classic science demonstration and competition. Every year many students world-wide build bridges made soley from popsicle sticks and glue, to see which designs can hold the most weight. We built one, using maybe 140 sticks, give or take a few.
How do you build a bridge?
There are many ways to build bridges, both real bridges and popsicle stick bridges. Do some research, be creative, and remember – triangles are strong. A triangle spreads out weight and is much more stable than a simple rectangle or square support.
How do abutments keep a bridge from spreading out?
Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch to the supports at each end. These supports, called the abutments, carry the load and keep the ends of the bridge from spreading out.