Confederation Bridge

Summary We have designed a truss to support a point load, placed at 190mm from the edge of a 450mm gap. The vertical face of the trusses is modelled on the already established ‘K’ truss design, but the overall shape of the structure is our own. There are three ‘K’ units on each truss. The two vertical faces are held together at the top by another truss-like design. We modelled this on the ‘N’ truss. The truss is constructed from hot-dog sticks, glue and bolts. Introduction The task was

This report mainly presents causes and consequences that resulted in the structural failure of the I-35W Mississippi River bridge which was constructed since 1964 and the further implication for me. It was found that the bridge collapsed due to undersized gusset plates, inefficient maintenance project and overloaded equipments. As a result of the abrupt collapse that brought about 13 dead and 145 injurers, the state government carried out a series of effective rescue, forced the designing company

why we use bridges on a daily bases. Such as for roadway use, waterway, railway etc. Many people don’t think about the reasons behind a simple truss bridge because it takes no effort to drive over one, and because they are there for your use. If you don’t consider truss bridges you most likely don’t think of the physics, the timing, effort, and hard work to make the truss bridge. On my essay on Truss bridges I will over run the history of a truss bridge, the process, types of truss bridges, roadbed

group 5 the name of our bridge is “Beam 5”. Yarden: While creating our bridge our initial plans were much different than what our final product was. The more we worried about the strength of the bridge, the less time we had. We started off with the idea to have a truss bridge made of wood and cardboard. As shown here, (show picture from journal entry), but as the project progressed our ideas continued to change. Arielle: (show drawing) In the end we had made a beam bridge out of hot glue, cardboard

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

Balls Bridge and Truss Bridges: A Brief Historical Overview Nathan Holth Foreword: I composed this brief and informal overview of truss bridges and Balls Bridge to put this beautiful historic bridge 's history and significance into context. A version of this document with full-color photos is available on my website 's Balls Bridge Page located at www.historicbridges.org/ontario/balls/index.htm which also has more information and photos. The general truss bridge information in this document was

Golden Gate Bridge, were built out of necessity. Another reason for building a structure is an artistic expression or to express a sentiment, such as the Statue of Liberty, the Gateway Arch, or the Eiffel Tower. A third reason for building a structure is

I decided to make a warren truss bridge for this project (Wikipedia, 2015). This type of bridge uses equilateral triangles to help bare tension or compression forces that the bridge may undergo (Mudaliar, 2015). I picked this design because it is a popular bridge design and it will have a smaller mass then some other bridge designs. This design has the potential to be very efficient in the amount of weight it can hold because of it being lighter than other designs. The one problem you have to solve

To understand the difference between a hoist and a crane, one needs to understand what each is. Hoist A hoist is the machine that does the lifting. It can move in a vertical direction and runs along the bridge girder. A hoist can either be fixed to a single beam (single girder) or it can run on the top of the trolley trucks in between two beams (double girder). The hoist lifts or lowers an openly suspended (unguided) load. The hoist runs along the girder (the principal horizontal steel beam) with

The Holland Tunnel was built in 1920-1924 by pushing cylindrical shields through the river bottom. The shields not only dug through mud but also served as the shell beneath which the actual tunnel walls were constructed. The tunnel walls were built of iron rings filled in with concrete making sure it was not hollow. Two shields were used; one began on the New York shore and the other on the New Jersey shore. They finally were able to meet in October 1924. The 1.6-mile span of the Holland Tunnel