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Bridges and Tunnels
A bridge is a link between two places, such as over a river, a road or a depression, that caters to pedestrians and/or vehicles. A tunnel is an underground link between two places, often underneath a riverbed, for pedestrians and/or vehicles.
4,393 Questions
What is the concrete mixing ratio in m60 concrete?
cemet: sand: Agg=1:1:2 (Nominal Mix)
Above answer is not as per engineering standards. For concrete mixing ration in M30 grade concrete, the mix has to be designed after testing all the materials including water in labs. When you go for higher grade of concretes the mix has to be designed , it is the water to cement ratio which has to be monitered for higher grades of concrete
How long is the longest arch bridge in the world?
the lupu arch bridge in shangai, china is the longest arch bridge in the world at 12,795 feet long. In the related links box below I posted a site where you can see many great pictures of it. they are very interesting. Even the arch has a trolly type train that passes on top. Check it out.
When was Chesapeake City Bridge created?
1952
The parralel span was built in 1973
Chesapeake Bay Bridge-Tunnel, was opened in 1964
:)
What is the shortest street in the world?
According to the first Related Link (see below), Edgar Street is the shortest, at 63 feet (19 meters). However, according to the measurements I got from Google Maps, Edgar Street is actually 131.25 feet (40 meters) long. Edgar Street is located in the Financial District. Its one-block span runs between Greenwich Street and Trinity Place, one block south of Rector Street.
According to the New York Times (see the second Related Link) Mill Lane is the shortest. Oddly enough, the writer of the Times article apparently did not think it necessary to provide the length of Mill Lane, but, according to the measurements I got from Google Maps, it is just a hair's breadth shorter than 100 feet (30.5 meters) in length.
So, at this time, Mill Lane seems the most likely contender for the title of Shortest New York City Street. Mill Lane is also located in the Financial District. Its one-block span runs between South William Street and the eastern stretch of Stone Street (a tiny street that is actually two streets, as its path is broken), one block south of Hanover Square.
How does a bridge stay together?
The towers are built first. Steel ropes are suspended from the towers. Special machines spin these into strong steel cables. Next, long steel cables called hangers are attached to the suspending bridge. Sections of the deck are lifted into place and fixed to the hangers.
Can you walk over Westminster bridge?
Yes in London from Southwark to the City of London or you can walk across the previous bridge , which was bought and reconstructed in state of Arizona, USA. The old medieval bridge no longer exists and was demolished at the beginning of the 19th century.
Why do big bridges have small gap in them?
Bridges, along with many other structural elements, expand (get wider and longer) when heated by the climate or by the Sun. If the bridge decks were fit tightly together, the heat expansion would cause them to buckle up and create a serious hazard to vehicles crossing. The gaps let the bridge expand into them, and nothing buckles.
How is a cantilever bridge built to withstand forces?
A cantilever is a beam supported on only one end. The beam carries the load to the support. Cantilever construction allows for overhanging structures without external bracing. Cantilevers can also be constructed with trusses or slabs.
Instructions on how to make popsicle stick bridges?
Use a truss design. Remember to use lots of triangles as they are the strongest geometrical shape, and also, if you are just testing only the strongest Popsicle stick bridge, use many reinforced Popsicle sticks (two or more popsicle sticks laid on-top of each other). Make your bridge as symmetrical as possible, as this well help your bridge endure more surface and joint tension.If you are using popsicle sticks for your deck as well, you should probably double layer it, then add a zigzag or triangles pattern of sticks on the bottom the deck, to further reinforce it. When you make joints with your popsicle sticks, make it look something like this:
--------_______-------- <stick layout
keep that pattern consistent, with out laying them in a stair type pattern.
Think of those small sturdy bridges with wide, geometrical beams.
What are toll fees on Gateway Bridge Brisbane?
Toll fees on Brisbane's Gateway Bridge are as follows:
- Class 1: Motorcycles - $2.00
- Class 2: Cars - $3.99
- Class 3: Light commercial - $5.99
- Class 4: Heavy commercial - $10.57
More information on the tollways in Brisbane can be found at the related link below. The link also specifies in more detail which vehicles are included in each of the classes.
How long did it take to build the Eurostar tunnel?
The word 'chunnel' was a media generated word in the 1980's and is no longer used. It was an amalgamation of 'channel' and 'tunnel'. Work on the Channel Tunnel started in 1988 and the first trains went through the tunnel in 1994. It is the longest undersea tunnel in the world although not the longest tunnel overall.
How long is the san mateo bridge?
you mean the Golden Gate Bridge at San Francisco Bay right.. well The bridge is 4,200 feet (1,280 m).
Who is the design engineer of the Chaotianmen Bridge?
he was a chinese man i forgot his name but research china and ull see
- Suspension bridge
- Cable stayed bridge
- Arch bridge
- Truss bridge
When was Seven Bridges Road created?
"Seven Bridges Road" is the title of a song written by Steve Young that he recorded in 1969 for his Rock Salt & Nailsalbum. The definitive version is the cover recorded by The Eagles in 1980 which still receives significant airplay on classic rock stations.
How tall is the tallest bridge?
The Millau Viaduct bridge is the tallest bridge in the world. The mast of the Millau Viaduct bridge is 1,125 feet or 343 meters high.
When and where was the bridge on the river kwai built?
The Bridge on the River Kwai is a 1957 World War II film based on the novel Le Pont de la Rivière Kwaï by French writer Pierre Boulle. The film is a work of fiction but borrows the construction of the Burma Railway in 1942-43 for its historical setting. It was directed by David Lean and stars Alec Guinness, Sessue Hayakawa, Jack Hawkins and William Holden.
In 1997, this film was deemed "culturally, historically, or aesthetically significant" and selected for preservation in the United States Library of Congress National Film Registry.
Source: Wikipedia
Who wanted to build the Millau Viaduct?
The Tower Bridge in London that spans the River Thames gets it name from the close by Tower of London. In 1884 Sir Horace Jones, who was then the City Architect, submitted the design that would be used to build the bridge.
The world's first cast iron bridge was built over the River Severn at Coalbrookdale in the year 1779.
Why was the millennium bridge built?
The London Millennium Footbridge, commonly known simply as the Millennium Bridge, was built in 1998 to celebrate the new millennium starting in 2000, along with the Millennium Dome and the London Eye, among others.
