Preview

Why Is It Important To Use A Truss?

Good Essays
Open Document
Open Document
1443 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Why Is It Important To Use A Truss?
Bridge Design Questions

Question 1
Design Element: The first design element we used was our horizontal deck design. We took 11 sticks, placed them side by side horizontally so the length would be equivalent to the edge of the plate. After that we glued and pressed down two sticks on each side on each end and made five of those single deck plates. After that we glued them together to meet the measurement requirement. Next we glued also making sure to press down hard all of the plates together by connecting them with popsicle sticks on each side. Continuing on we covered one whole side of the bridge with an estimating 55 sticks since we used 11 sticks per plate and then we covered the other side. Once we had covered the bridge we had a total …show more content…
A truss is very simple look it is basically triangles connected together to use for weight support. There are many different trusses, but the one I see being used was the warren truss which is just simply equilateral triangles put together. The triangles are connected at the top with popsicle sticks. A truss at the end is just a trapezoid with supports inside.

Why this design element was so effective: The reason the truss is so effective is because of the way it handles the weight. When there’s force being applied the force goes down the triangles and into the wide base. Considering the base of the truss is wide it is hard for the bridge to break. Also because in a triangle the the edges aren’t vertical like in a square the force makes the edges go wide which they already are so it isn’t that hard for the triangles to bear the
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Good Essays

    Roebling Case Study: Niagara Suspension Bridge
    • 227 Words
    • 1 Page

    Roebling Case Study: Niagara Suspension Bridge

    One of Roebling’s greatest implementations in the Niagara Falls Bridge was his lattice truss design. Unlike the standard lattice truss systems where the diagonal beams lie over each other, his system interlaced the diagonal beams. This provided the structure with a higher rigidity than what was previously possible using traditional methods. This design was not flawless, however, as it substantially reduced the effectiveness of the diagonals. Roebling thought this compromise was acceptable given that the bridge supports served to buttress the system. Another advantage of the diagonal iron bands is that it avoids wooden joints which are comparatively movable and reduce the resistance of the system. A horizontal giving way (buckling) of the truss level is not possible since at the final point the vertical poles take only pulling tension…

    • 227 Words
    • 1 Page
    Good Essays
    Read More
  • Good Essays

    Case Study: The Quebec Bridge
    • 1508 Words
    • 7 Pages

    Case Study: The Quebec Bridge

    The first being that both the top and the bottom chords for the anchor and cantilever arms of the bridge were mostly designed as straight pieces. This was done to make the construction of the bridge easier and cheaper. The top chords that attached to the anchor and the cantilever arms on the Quebec Bridge were created to be slightly curved, because the engineers believed it looked more aesthetically pleasing. However, the curvature of the chords added to the secondary stresses on the members, and reduced their buckling capacity. The engineering records for the building of the Quebec Bridge has stated in it, “As a rule secondary stresses are much more dangerous in tension that in compression members, which seem to have been the first to give way in the Quebec…

    • 1508 Words
    • 7 Pages
    Good Essays
    Read More
  • Powerful Essays

    ENB110 Report
    • 3761 Words
    • 146 Pages

    ENB110 Report

    The related costs, dimensions and load capacity of the bridge It was decided that balsa wood and a Pratt truss would be the most appropriate materials and design to use for this application. This was due to both materials being strong, effective and cheap, allowing the raw materials cost to remain low while also preventing over engineering. This is a reasonable result for a light prototype bridge which only weighs approximately 150g. Table of Contents 1.0 Introduction ...................................................................................................................................…

    • 3761 Words
    • 146 Pages
    Powerful Essays
    Read More
  • Good Essays

    Bridge Trusses
    • 370 Words
    • 2 Pages

    Bridge Trusses

    Web give the truss its strength and rigidity by transferring the stresses in the chords throughout the structure. https://nationalvetcontent.edu.au/alfresco/d/d/workspace/SpacesStore/b2f0fcee-47cb-4650-b248-f533d73d5428/13_05/toolbox13_05/unit8_laying_up_roof_trusses/section1_principles/lesson2_parts_of_a_roof_truss.htm 4. What particular feature makes a truss so strong? The feature that makes a truss so strong are the geometric principles that are used such as triangles.…

    • 370 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Pratt Truss Bridge
    • 876 Words
    • 4 Pages

    Pratt Truss Bridge

    Each type of design is although, unique in its own way, fulfills the desired goal that the Truss Brides are made for. The purpose of this experiment is to research various bridges and build a similar one that gave the students the highest inspiration. For one case in particular, the bridge design was in-spired by the Pratt Bridge and almost every height, width, and length met the requirements ex-cept for the length on the bottom part of the bridge, it exceeded the maximum height that was asked. Moreover the bridge held a total of 20 pounds before one of the top sticks snapped. Alt-hough it performed a decent job, the bridge could have held more weight if there were more di-agonals to provide more support so the bridge wouldn't break. Furthermore, this bridge fulfilled its goal and held a large amount of weight for such a small bridge. These bridges are also very significant for this planet because it is very resourceful and effective, as well as…

    • 876 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Apollo 13 Design Essay
    • 778 Words
    • 4 Pages

    Apollo 13 Design Essay

    When you do any type of experiments there are many ups and downs, many mistakes and faults. Our design was less than 100% successful because our measurements were inaccurate. If we redo our design we could make the base with the straws, and cup (which was 21 cm long) 6 to 7 cm longer. We could also fix the slide (which was 36 cm in total) by making it 6 to 7 cm longer as well. Our bridge needed a stronger base because it kept falling side to side. So we can put a couple more straws to each side of the cups and tape them all together. I am certain that if we redo our bridge we can succeed.…

    • 778 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Nasa Crane Research Paper
    • 1242 Words
    • 5 Pages

    Nasa Crane Research Paper

    Because we started this project a little too late, we did not bring any bridges to the actual contest, but we still followed most of the guidelines that they came up with. The goal was to make a bridge that could hold the most weight but also it needed to be light.The bridge had to span over 48 inches. My partners were Kat and Ema. At first, we started to think of designs to make a bridge. Our first design, after calculating how much wood it was going to take, came out to be a very large amount of wood that we could not use. Even though we trashed the idea, we kept the base idea that we had because it was pretty efficient. After around two more designs, we came up with a bridge that would not take that much wood and we believed that it would hold a good amount of weight. The first thing we did was cut out all of our pieces that we needed to create the bridge, this took a long time to calculate and to cut the right size pieces. At the same time of us finishing cutting all our of pieces, a new rule came into play that we could create smaller bridges to span over 12 inches. We cut every piece we had into ¼ of the size. We began creating our design but due to the glue not being very good and a lack of time, we did not finish. We still tested our design and it ended up being one of the best bridges that was made in our class. We decided that if we would have tried this again, we would use our time more wisely. I liked how we were able to make our own design, and how we could use a good amount of wood to create it. I also liked that we were not rushed to do this project. One thing that I would change is that we need to focus on one project at a time. This would allow us to make better designs. I would also change the type of glue that we used because it did not hold very well. The last thing that I would change is that I would like to pick my partners in the…

    • 1242 Words
    • 5 Pages
    Good Essays
    Read More
  • Good Essays

    Explain Which Forces Were Responsible For Bridge Failure
    • 792 Words
    • 4 Pages

    Explain Which Forces Were Responsible For Bridge Failure

    Lastly, we built a truss bridge, one of the strongest and most efficient bridges. Tim, Goldium, Parker, and Nigel’s bridge had the lowest structural efficiency of 40. Even before we tested their bridge, it was wobbling on the table. I think their bridge was weak because they only had thin rods as support. Also, they didn’t include many triangles, choosing to use cubes at the top.…

    • 792 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Essay On Truss Bridges
    • 536 Words
    • 3 Pages

    Essay On Truss Bridges

    Truss bridges are recognizable because of their numerous, relatively small interconnected triangles. This framework of triangles is used for is strength to withstand tension and compression forces. They are considered a light-weight yet a very stiff form of construction. At first they were built of wood, then with the discovery of welding they began to build then using iron, then steel. Occasionally, a combination of the materials may be used. There are actually 30 different kinds of truss bridges. Truss bridges were commonly built before the 1930’s. They are considered expensive to build today and are considered to be labor intensive and costly to maintain. Truss bridges are frequently found to be used for railroad bridges and typical spans can range from 40m to 500m.…

    • 536 Words
    • 3 Pages
    Good Essays
    Read More
  • Powerful Essays

    Case Study: The 130th Street Bridge
    • 1107 Words
    • 5 Pages

    Case Study: The 130th Street Bridge

    Knowing major components can play a key role when you are creating something like a truss bridge, when you are creating a truss bridge it usually consist of 7 different major components which are the Vertical (located a quarter through the middle of the bridge) the Hip vertical (located at the left and right end of the 130th bridge) the Top chord (known as the flat surface that is over the bridge and holds the vertical and hip vertical along with the support of the bottom the chord) the Deck (platform above the bottom chord it also what the cars will drive on) the Diagonal (diagonal lines that are connected to the verticals creating a triangle formation), the Bottom chord (it holds the deck and the top chords, and vertical long with the top chord) and the End post which are the post that go to an angle and connect the top and bottom chord. Each of the components is in specialty to the truss…

    • 1107 Words
    • 5 Pages
    Powerful Essays
    Read More
  • Good Essays

    Sydney Harbor Bridge Simulation
    • 1198 Words
    • 5 Pages

    Sydney Harbor Bridge Simulation

    In this section, we would conduct various trials on each of our bridges consisting of an earthquake simulation and a strength test. In each of these test, my bridge was put under the forces of tension, compression, shearing and torsion. My partner and I’s bridge reacted in a very positive way. For instance, our bridge stood the test and overcame each of theses forces of stress with minimal damage done with only one stick, pertaining to one of the trusses, that fell off. In the earthquake simulation, my bridge was able to withstand the stress, without being broken into pieces. The modification that my partner and I applicated on to our construct demonstrated that they did provide it with support, by holding the bridge firm and preventing further damage. In order to do this some of the modification, we applied included trusses to distribute weight through a framework of triangles. We also utilized tongue and groove modification on the deck to provide support and allow it to stay in place. There were some flaws and strengths that we saw throughout these tests. We noticed one of the weaknesses of our bridge was that it improperly glued leading to some structural foundation loss, also that our support was two weak and should create a stronger less lightweight bridge to withstand a greater weight. One of the strengths that our bridge demonstrated was that our modification each were fully functional and engaged in each of the test dissipating the weight throughout the bridge. When it came to bridge strength, our bridge held a moderate weight of fifty pounds which is significantly larger that the half a pound the bridge weighs. This demonstrates that with superior engineer something that weighs very little can lift more than its actual weight. If I could make any change or add newer modifications to my bridge, firstly I would remove the legs and to towers to replicate the…

    • 1198 Words
    • 5 Pages
    Good Essays
    Read More
  • Good Essays

    Trust Design Bridge-Pratt
    • 443 Words
    • 2 Pages

    Trust Design Bridge-Pratt

    The Pratt truss was first developed in 1844 under patent of Thomas and Caleb Pratt. Since the 1840s through the early twentieth century, the Pratt has diagonals in tension, verticals in compression, except for the hip verticals immediately adjacent to the inclined end posts of the bridge. Pratt trusses were initially built as a combination wood and iron truss, but were soon constructed in iron only. The Pratt type successfully survived the transition to iron constructions well as the second transition to steel usage. The Pratt truss inspired a large number of variations and modified subtypes during the nineteenth and early twentieth centuries…

    • 443 Words
    • 2 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    What Is A Truss Bridge
    • 149 Words
    • 1 Page

    What Is A Truss Bridge

    In conclusion, our hypothesis which stated that the truss bridge will be the bridge with greatest weight bearing capacity was right. The truss that supported its bridge had a greater effect than an arch bridge’s arc that similarly acts like a truss.…

    • 149 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    I-35w Bridge Essay
    • 989 Words
    • 4 Pages

    I-35w Bridge Essay

    In conclusion the I-35W Bridge’s design had some flaws which led to the collapse of it in August 1, 2007 and in this paper we spoke about the structural form of the I-35W bridge, some circumstances that led to the collapse, why the bridge fell and some post-effects of the collapse. If the construction company have calculated that the bridge was already in enough stress and not placed the construction material above the design flaws, which were the gusset plates, the collapse would have been…

    • 989 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Bridge Project
    • 362 Words
    • 2 Pages

    Bridge Project

    We have come up with three possible solutions that could work for this bridge project. Our first bridge that we came up with was a bridge that had one large truss that was connected by two solid vertical beams resting on a flat base.…

    • 362 Words
    • 2 Pages
    Good Essays
    Read More

Related Topics