Essay on The Physics of Bridges

A simple beam bridge that is flat across and supported at the two ends. A longer beam bridge can be held up along the middle by piers standing in the river. The weight of the bridge itself, plus the load that it carries, plus gravity are the downward forces are spread evenly across the length of the bridge. The upwards forces that hold the bridge up come from the piers. The Confederation Bridge in Canada is a famous beam bridge.

In Mary Lawson’s The Other Side Of the Bridge, the proginist, Arthur Dunn faces many problems and obstacles throughout the novel, Arthur eventually overcomes his negative emotions and obstacles and comes to peace with them. Arthur overcomes his resentment and emotions towards Jake and overcomes his negative feelings towards Laura and the farm.

The first example of an external force is the static (dead) load, this refers to the gravitational forces acting on the bridge itself. Every structure has to be able to support the weight of its own materials in order for it not to collapse, this is before any live load is applied to it. Another example is dynamic (live) load which refers to traffic, from people or vehicles, which move across the bridge and apply additional weight to it increasing the magnitude of vertical forces acting on the bridge. But environmental factors such as changes in temperature, precipitation and winds can also create vertical and horizontal loads on the bridge. (Bagga

Suspension bridges were important before 1940 and are still important today. Major cities such as San Francisco, and Manhattan both have a suspension bridge. Suspension bridges are,” a bridge having a deck suspended from cables anchored at their extremities and usually raised on towers” (dictionary.com). Due to the fact that suspension bridges are not completely supported throughout the length of the bridge, past bridges were unsafe. For example, the Tacoma Narrows Bridge was a suspension bridge opened on July 1st, 1940 (Mark Ketchum). This bridge marked a huge point in suspension bridge safety and engineering, because in collapsed approximately four months after it was opened (Parsons). The collapse caused such a shock, that suspension

Dead load refers to the load of the structure itself while live load refers to the maximum load that can be applied to the bridge before it stops being static. When taking in to account the information gained in week 3 regarding the distance between applied forces and their reaction it is made apparent that taking the live load of a structure into account becomes more complex.

A load path is the transfer of loads and forces from the through the building to the bottom of the building, following the most direct structural path.

In our reading, there were many things that jumped out to me, but I wanted to touch on a couple of them. Firstly, I wanted to discuss the whole idea of “the bridge” in the story. On page 11, at the end of the 2nd paragraph, Carnehan talks about how he came to the first village. Carnehan speaks of how he and Dravot arrived “without any trouble”, and then proceeds to explain how they gained control of the village. The idea of bridges shows up again on page 14, as Carnehan makes the natives builds bridges that “cut up the country horrid”, and finally at the bottom of page 18, as Dravot falls to his death. I feel that the “bridges” are a representation of the connections between the foreigners (Dravot

Calculations were performed to determine the effectiveness of the design of the platform. Allowing for a safety factor of 1.5 times the design weight of 10kg and considering the bridge must not be overdesigned; plans were made for the bridge to fail at 25kg, 2.5 times that of the design weight. According to the calculations, the bridge would hold a load of over 15kg and experience failure at 20kg in the members. These calculations were later disproven in the testing, breaking 8kg earlier than expected, due to unforseen errors. An analysis of the bridge design and calculations has been included at the end of this report.

The final primary component of a suspension bridge is the deck, or the roadway upon which cars drive and pedestrians walk. The deck is built from massive pieces of steel-reinforced concrete hoisted into the air and laid into place upon the bridge. Deck pieces are connected with bolts and rivets, then suspension cables connect each section of deck to the main

Since the early days, the men try overcome environmental challenges and, in this process, ends up creating amazing masterpieces of engineering. Among this works, the bridges appears as the clearest representatives of how the mankind could adapt to Earth’s contours. If the shape of landscape can’t be changed, the bridges are the solution to link two places and allows the connection of the traffic to improve aspects such as the communication and the trade. Depending to the need, to the sources and to the environment, the bridge can be constructed in a specific configuration. There are five main sorts of bridges configurations. First, there is the simplest bridge, the beam bridge. Second, the arch bridge, one of the oldest kind. There are the truss, composed of set of trellises. Lastly, there are the cable-stayed and

Students have had to see Newton’s laws at least once in their lives, and even with that they probably do not know their application to such things as bridges.

A culture’s literary and historical fiction remains as one of the most accurate sources (next to direct primary sources, of course) for gaining a unique perspective on a region’s history. The Ottoman Empire stands as a culture that few Americans care to experience or study, perhaps because they feel threatened by the idea of learning from the ancient pas of a people they consider “enemies” or “inferior.” Ivo Andric, however, provides a beautifully woven together history of the very culture few westerners study. The Bridge on the Drina provides a unique insight to culture, geography, and human experience through excellent and descriptive storytelling.

Superstructure bears the load that is being passed over the bridge and it transmits the forces caused by the same to substructure. Load received from the decking is transferred on to the substructure by Bearings. They also distribute the load evenly over the substructure material as it may not have sufficient strength to bear the superstructure load directly. Piers and Abutments are the vertical substructures which transfer the load to the earth in the foundation. Wing walls and returns are constructed as the extension of

The beam was loaded the mid-length in 2.745 lbs. increments up to 6.745 lbs. The change in clearance of every load step was measured and data was recorded.

adopted for the Rion-Antirion bridge is further described in details to highlight how capacity design