Which triangle formation creates the best structure for a truss bridge; right triangle, isosceles or equilateral?.
Hypothesis .
Between the three different triangles, a right triangle has more of a fixed position and can fit more triangles into smaller space. The right triangles create perfect squares where the others do not.
Materials .
Two even platforms about 4-5 feet off of the ground.
Hot glue gun.
Hot glue sticks.
1000 popsicle sticks.
2-3 foot piece of string.
Suspend able hook.
Weights in ounces or pounds.
Scissors .
Zip ties.
Procedures.
Gather all needed materials and blue prints for your bridge designs.
I. For the right triangle truss bridge you will not need to cut the Popsicle sticks. (don't forget to heat the glue gun).
1. You will be making a four sided bridge so all four sides must be the same length. Two of the sides must be the same design (triangles) and the other is railroad tracks. You must use _____ Popsicle sticks and it must be 1 foot long to complete.
2. Assemble a total of twelve of these sides to create 3 four sided right triangle bridges.
3. Take 4 zip ties at the intersection where the sides meet put 2 zip ties.
4. Repeat step 5 three times to finish the first 3 bridges.
II. For the equilateral triangle bridge you do not need to make any cuts on the Popsicle sticks.
1. Once again you will be making a three sided bridge and you must use 55 popsicles and the bridge must be 4 Popsicle sticks long.
2. With this design the triangles fit perfectly together so you will have no problems matching them up.
3. 6 bridge sides will be needed to construct these three truss bridges and 3 bottoms. .
4. Take 4 zip ties, at the intersection of the two plains where the sides meet put 2 zip ties.
5. Repeat step 4 three times to finish the first 3 bridges.
III. For the isosceles triangles the two out of the three Popsicle sticks must be cut to the same length.
1. Once again you will be making a four sided bridge and you must use 69 popsicles and the bridge must be 4 Popsicle sticks long.
This bridge is a combination of the arch, truss, and suspension bridges. ... Cantilever bridges are a type of truss bridge. ... Where an abundance of wood exists, a simple truss-designed bridge serves well. ... Figure 9 shows a simple version of a truss design bridge. Steel truss bridges like the one shown in Figure 10 are not as capable of great spans as other bridge designs. ...
Toothpick Bridge Essay PART ONE The type of bridge that I am going to attempt to build is called a Warren Truss bridge. ... There are a couple main reasons why I chose to build a Warren Truss over all of the other bridge types. First of all, the Warren Truss is one of the most common types of bridges, which says, in a way, that it isn't a bridge that is dangerous or not a good type of bridge to use. ... Next, the Warren truss and all other truss" can support a large amount of weight without any problem, and that's because in design theory, the individual members of a simple t...
Bridges have come a long way since their early history. ... As development continued, builders soon learned to create longer spans by using trusses, arches, and joined stringers. ... As a result, protection was added to the bridges. Wood trusses and joints were now protected as a result of the new type of bridge called the covered bridge. ... It is the longest covered bridge. ...
His specialty was building bridges. ... It was called a suspension bridge. ... To support the load, and to protect the span from high winds and vibrations, deep stiffening trusses were constructed. Of course construction was delayed because Roebling had to redesign the trusses for the heavier trains of the day. ... The Brooklyn Bridge was built. ...
Problem Statement: In this case, I was tasked to analyze a truss system. ... The contractor was worried that the model for the bridge was oversimplified because it neglected the member weight. ... Assumptions: The first step I had to take to analyze this bridge was to make a few initial assumptions. First, I assumed that the truss was loaded only at the joints. ... I then broke the bridge into pieces to analyze the forces on each individual member. ...
Many top scientist and dive exploration teams have gone out into the Bermuda Triangle also known as the Devils Triangle to do a scientific test and take samples which have helped them explain many of the mysteries surrounding the triangle. ... The mysteries of the Bermuda Triangle go back as far as Christopher Columbus when he was sailing to the Americas. ... Neither groups remains were ever discovered, and the Bermuda Triangle legend was born.... "The first sign, which can be seen from the air not from a boat, is the formation of a dark spot on the ocean. ... In conclusion, the stigma o...
We found that the strongest structural shape was the triangle, and therefore designed our bridge completely out of triangles. ... Our bridge is a modified arch bridge because it transfers force to the ground similarly. The arch has been transformed into a triangle for ease of construction. We began with a single triangle and added supports where potential force could cause a weakness. ... We modeled our foot bridge off the world record holding balsa wood bridge, and built it out of balsa wood of width 1/6" by 3/16" and bass wood sheets 1/16" thick. ...
These new rail bridges had to low, flat and strong. ... The viaduct was to have a simple truss design and was to consist mainly of twenty iron towers, these would be held together with braces. ... The second bridge I will talk about is the Forth Railway Bridge, across Scotland's Firth of Forth. ... In 1806 the idea of building a bridge was put forward. ... The problem here was that most bridges that spanned this distance were suspension bridges, but it was obvious that in this case a suspension bridge would not be adequate. ...
This mysterious place is called the Bermuda Triangle. It is easy to find the Bermuda Triangle on a map. ... Not every ship or plane that passes through the Triangle disappears. ... Seafarers have known about the Triangle for centuries. ... In 1967, the cruise ship Queen Elizabeth I, was moving through the Triangle. ...
