Grabber: Truss bridges are a good creation because it helps with traveling since it is a sturdy and cheap efficient bridge to make. Define truss bridges and explain how they are different from other bridges: A truss bridge is a bridge whose load-bearing super structure is composed of a truss, a structure of connected elements forming triangular units. The connected elements are typically straight. The truss bridge is different because it uses triangles, its way brought about in the 19th and 20th century. in paragraph citation (author, year))J.B. Calvevt Created July 19 2000.
Who When, why and where were truss bridges first used and why did they become popular again? The truss bridge was first developed by Thomas and Caleb Pratt in 1844. They were made because the price was a lot cheaper. They became popular again because they transitioned to steel usage and it worked because of the price since it was cheap. (author, year) Who When, why and where did the type of truss bridge that inspired your design come about The warren trust bridge, in the 20th century. Used in supporting a load these were also cheap. It was used in Europe and Britain by America. (author, year) http://www.innovateus.net/transportation/what-warren-t Thesis statement (make a claim as to why the design you chose is the best design under the circumstances): The warren trust bridge design is the best design because it is cheap and it works and it is efficient.
Paragraph 2 Topic sentence: There are many famous truss bridges in the world especially America Description of a famous truss bridge in the world: New old Broadwell Mill Road Bridge. This bridge replaced the old one. This was built in 2010. This bridge was donated to the county in Alabama. (author, year) http://bridgehunter.com/al/calhoun/bh49490/ Description of a famous truss bridge in America: The Golden Gate bridge is one in America. Suspension bridge spanning the Golden Gate strait. This is a three mile long bridge. Channel between San Francisco Bay and the Pacific Ocean. author, year) https:// en.wikipedia.org/wiki/Golden Gate_Bridge Description of a truss bridge in Miami: Brickell Avenue Bridge.
This bridge replaced the old one in 1929 they replaced the bridge in 1929 in 1995. They renovated this bridge in 2006 to allow each direction to have 3 lanes. There is a lot of traffic on this bridge. author, year) https://en.wikipedia.org/wiki/Brickell_Avenue_Bridge Closing sentence: these are three famous truss bridges are New old Broadwell Mill Road Bridge, Golden gate, Brickell avenue bridge. Name Paragraph 3 Topic sentence: These bridges are not always that wide but they are long sometimes it depends which truss bridge it is. Describe optimal length, width and height ratios: The Golden Gate Bridge is one mile wide and three miles long and it is 4200 feet high. (author, year) https://en.wikipedia.org/wiki/Golden_Gate_Bridge Benefits of triangles, arches, and crosses: The benefits of triangles is that it is a strong support along with arches and crosses.
Advantages and disadvantages of wood vs. steel vs. concrete: Advantages of wood is that heat makes it stronger but e disadvantage is it deteriorates. The advantages of steel is lightness, high strength and stiffness per weight. Low fire resistance, susceptibility corrosion. Advantages of concrete is the durability is very high withstand high temperatures the disadvantages are less ductile, the weight of compared is high compared to its strength. (author, year) http:// www.kultur.gov.tr/EN,35285/wood-as-a-building-material-itsbenefits-and-disadvanta-.html, http://civilengegy.blogspot.com/ 2012/02/advantages-and-disadvantages-of-steel.html, http:// civiltoday.com/civil-engineering-materials/concrete/15advantages-and-disadvantages-of-concrete.
Closing sentence: There are many truss bridges today and some are famous bridges such as the golden gate and other bridges this was designed in the 20th century and is still used in the 21st century. Paragraph 4 Topic sentence: There are many truss bridge designs but the most common is the warren trust bridge – Description of the truss bridge design(s) chosen: The warren trust bridge, in the 20th century. Used in supporting a load these were also cheap. It was used in Europe and Britain by America. 77 (author, year) http://www.innovateus.net/ transportation/what-warren-truss.
Describe an actual bridge of this design(s) (why was it chosen for its location): Golden Gate bridge in San Francisco because it is above the water and its length since it is pretty much a highway. author, year) https://en.wikipedia.org/wiki/ Golden_Gate_Bridge__ _ Advantages and Disadvantages of this design(s): The advantages is the length and height a disadvantage is the traffic it causes. author, year) https://en.wikipedia.org/wiki/Golden_Gate_Bridge. Closing sentence: The price of these warren trust bridges are cheap and the Golden gate bridge
