Golden Gate Bridge Description Essay
Golden Gate Bridge Carries 6 lanes of /, people and bicycles Crosses Locale San Francisco, and Maintained by Characteristics Design, & Total length 1.7 mi (2.7 km) or 8,981 ft (2,737.4 m) Width 90 ft (27.4 m) Height 746 ft (227.4 m) Longest span 4,200 ft (1,280.2 m) Clearance above 14 ft (4.3 m) at toll gates, higher trucks possible 220 ft (67.1 m) at History Designer, and Opened May 27, 1937 Statistics 118,000 Toll Cars (southbound only) $6.00 (cash), $5.00 , $3.00 (carpools during peak hours, FasTrak only). Contents. History Before the bridge, the only way to go north from San Francisco to Marin County was by ferryboat. The trip by ferry took 20 minutes to complete. Before the bridge was built, San Francisco was the biggest American city still served mostly by ferries. Some experts did not think that people could build a bridge because the water currents between Marin and San Francisco were very strong.
Also, the water was very deep in the middle - 102 m - and there was a lot of wind and fog that could make building a bridge difficult. In 1916, San Francisco's city engineer asked other engineers to offer ideas for a bridge. One man, Joseph Strauss, designed a very cheap bridge - only $17 million, but many thought it was ugly. Local authorities asked him to change the design and to work with other experts.
He and other experts, especially architect Irving Morrow, designed the bridge again, this time as a suspension bridge. A suspension bridge has tall towers that hold long cables, and the cables hold up or 'suspend' the bridge. The bridge is called the Golden Gate Bridge because it crosses the Golden Gate Strait, the area of water between the San Francisco peninsula and the Marin County peninsula. In 1930, people in San Francisco and Marin County agreed that the local governments could sell bonds to the public to raise money for the bridge.
The new bridge was going to cost $30.1 million. But it was difficult for the governments to sell the bonds at the time because of the Wall Street Crash of 1929. Finally, the Bank of America, which was based in San Francisco, agreed to buy all the bonds to help the local economy. Construction.
The Golden Gate Bridge Construction began on January 5, 1933 and was finished in April 1937. Eleven men died during the construction, so the builders put a net under the bridge for the safety of the builders.
Nineteen men were saved by the net. When they finished the bridge, they painted it with a reddish-orange sealant, a type of paint that protects the bridge from water and humidity. People liked the color because it looked good with the bridge's surroundings and it was easy to see in the fog, so the bridge was officially painted with the color, called International Orange. Today People can cross the bridge in cars or motorcycles any time. During daylight hours, they can cross by bicycle or on foot. They can not cross the bridge on roller skates, skateboards, or mopeds.
When the bridge opened, drivers had to pay 50 cents to cross the bridge in either direction. Today, when drivers go north on the bridge (leaving San Francisco) they do not have to pay, but starting on September 2, 2008, when going south (entering San Francisco), they have to pay $6 if they pay cash or $5 if they buy a Fastrak pass. People often jump off the bridge to commit suicide (kill themselves). Olympus ib software download for mac. They fall 75 meters and most of them die when they hit the water.
Over 1600 people committed suicide by jumping off the bridge. References.
Abstract: This report is an analysis of a suitable bridge design to span across a 300mm gap while also being able to support maximum load. Introduction: This report will investigate different bridge designs, from the gathered information a pasta bridge will be constructed replicating the bridge that: 1) Holds sufficient weight 2) Is economically viable 3) Has pleasing aesthetics The bridge must have enough deck room to accommodate a matchbox car.
The bridge design that seems most appropriate will be scaled and down and constructed than tested. Analysis There are many designs that would be suitable for this project that meet the criteria of economic viability, ability of holding weight and of aesthetic appearance. In this report the best solution will be based on the criteria and the advantages and disadvantages of the materials. Bridge Designs: After choosing between many different designs of bridges the list was narrowed the list to two, taking account economics, aesthetics and the bridges ability to hold weight. Arch Bridge: Arch bridges are one of the classic architectural components that you can see throughout much of modern human history.By incorporating arches into a bridge design, there are some definite advantages that can be gained to improve the overall structure. An arch bridge can be constructed out of nearly anything as long as the material is able to withstand compression. This feature of the arch bridge allows for simple forms of the arch bridge to be constructed out of materials that are purely based around the budget of the project.
The ability to please aesthetics is another pro of an arch bridge design. As mentioned earlier, an arch bridge may be constructed out of all different types of material, thus leav. Middle of paper.ally impacts the environment it is able to recycle as soon as it is not needed anymore thus reducing its environmental destruction. Construction of Bridges: Sometime ago the construction of bridges was completely reliant on men to move, lift, place and secure the materials used in the construction of bridges. However, trucks and trains are used to transport the required construction materials to the building site. Cranes are now used to lift the beams and place them in position. Men still generally have to secure the beams together whether it would be via welding or mechanical securing.
Bibliography: www.historyofbridges.com www.garrettsbridges.com www.hsc.csu.edu.au www.sciencebuddies.org www.selah.k12.wa.us apecsec.org www.design-technology.org www.physicsforums.com www.quora.com www.historyofbridges.com www.aboutcivil.org www.metsec.com www.waagner-biro.com. A bridge is a structure,built by many different materials, to travel over physical objects. For example, bridges were made over bodies of water, roads or intersections, and valleys. The first welded road bridge was designed by Polish engineer Stefan Bryla in 1927.There is an average of about 607,380 bridges throughout the Unites States.
There are many different bridges throughout the world and there is also different causes for bridges. There are also many different designs that all have different purposes and apply to different situations. tags: Bridge, Bridges, Box girder bridge Strong Essays 1023 words (2.9 pages). Introduction A bridge is required to span a gorge in New Guinea. The goal of this project is to design a bridge that meets the requirements for that bridge and then construct and test that bridge on a 1:20 scale.
The requirements for the bridge are that it has to span across the 600mm (12m to scale) wide gorge which has two square flat areas on either side of the bridge which are 100mm (2m to scale) wide. The bridge must be able to hold the maximum possible weight while remaining as light as possible. tags: Bridge, Truss, Truss bridge, Covered bridge Strong Essays 1773 words (5.1 pages). Johnny Tran 11-14-14 Physics Period 4 There are many types of bridges. Some bridges has many strength and weaknesses. For example, a beam bridge’s weakness would be that you have to use a lot of stone starting up from the ground.
Another example would be how a suspension bridge’s strength would be it flexibility, like the Golden Gate Bridge. The engineering process for a bridge would be to first make sure everything will be symmetrical. Secondly, from that symmetrical blueprint, the construction of the bridge is now good to go. tags: Bridge, Bridges, Alameda, California Strong Essays 928 words (2.7 pages). An ethical dilemma does not have a distinct solution as no action is completely without an error in morality, in order to achieve a good outcome, it is essential to dissect the issue and identify the primary stakeholders.
Before a good outcome to an ethical dilemma is achieved obstacles must be overcome through argumentation and analyzing the stakeholders. The primary obstacle that had to be overcome was the debate between the opponents and proponents of the suicide barrier that covered social, political, and economic factors. tags: design, suicide prevention system Strong Essays 1235 words (3.5 pages). About eighty years ago, engineers were able to build a bridge on time and within budget with no problem; today, most of the projects take extra time and money to finish. What exactly happened between now and eighty years ago that caused such a drastic shift.
Golden Gate Bridge Description Essay
It is clearly not the engineers nor the technology; in fact, those have only improved over time. Today, engineers are faced with much more than designing and building the infrastructure, as they were before. They compete with politicians for funds, fight for the safety of workers, and protect our environment by adhering to the numerous laws and acts set forth by the government. tags: Transportation, bridge Strong Essays 1881 words (5.4 pages). One of the great engineering feats when building this bridge was the use of steel.
Despite its maximum height of 343m span of 2.46km, 280m above the valley floor, the bridge is actually quite light. 242,000 tonnes seems like a lot but without the use of steel on the structure, this bridge would have been more than twice as heavy. Steel is a much stronger material than concrete, so can support more weight with less mass. The actual road deck, which is comprised almost entirely of steel, only weighs 36,000 tonnes.
tags: tallest suspension bridge, wagga Strong Essays 775 words (2.2 pages). Suspension bridges are visually appealing and light yet strong and durable. Suspension bridges are made from enormous cables that reach from one end of the bridge to the other.
These cables rest on top of high towers and swoop down. They are fastened by anchorages that are on both ends of the bridge, which help stabilize the bridge.
Most of the weight of the bridge is carried by wires that drop to the road surface from the main cables. These wires help evenly allocate the weight of the bridge and keep the cables sturdily in place.
tags: bridge, ocean, distance Strong Essays 613 words (1.8 pages). It’s been the venue for significant cultural events like the first modern bungee jump in 1979, the last Concorde flight in 2003 and a handover for the Olympic Torch relay in 2012. This bridge has made a rather small city in England notable because of its long lasting structure.
The bridge towers are not identical in design. The Clifton tower has sides cut-outs, the Leigh tower has more pointed arches. The 25metre tall Leigh Woods tower stands on top a 34 metre red sandstone-clad abutment.
In 2002 it was people found out that the tower was not a solid as it could but it did contain 12 vaulted chambers up to 11 metres high, linked by only shafts and tunnels. tags: bristol, england, arch bridge Free Essays 693 words (2 pages). Clifton Suspension Bridge The Clifton Suspension Bridge is located in Bristol England, and spans the beautiful Avon gorge. This bridge has become the symbol of Bristol much like the Eiffel tower has of Paris, and the Opera house has of Sydney. The story of the Clifton Suspension Bridge began in 1754 with the dream of a Bristol wine merchant who donated his life savings to build a bridge over the gorge.
To decide on a suitable design for the bridge a competition was held. Thomas Telford, the leading civil architect of the time was the judge. tags: History Historical Bridge Architecture Essays Strong Essays 1045 words (3 pages). Bridge Design Concept Our bridge consists of three levels supported by 1' high cylinders to support each level. On each level we will have rows of both three and four cylinders extending across the middle.
Each cylinder will be stacked on another, evenly offset and centered to gain support. Our bridge will be 28' X 2 -7/8'. The length of our bridge is probably the biggest and most significant contributor to our outcome. The desk table gap is 14' long, while our bridge length is 28' long. tags: essays research papers Free Essays 407 words (1.2 pages).