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Civil Engineering
Civil Engineering is a profession of designing and executing structural works that serve the general public, like houses, buildings, roads, etc. A Civil Engineer is an engineer trained in the design and construction of public works, such as bridges or dams, and other large facilities.
4,921 Questions
Usually bridges are made of steel and/or concrete. Concrete bridges have steel reinforcement embedded within the concrete, because concrete is weak in tension. Steel is strong in tension and compression, which makes suspension bridges practical. Every nut and bolt, steel member size and thickness, and every other component on a bridge has been located and sized by using mathematics to calculate all the forces applied to each component of the bridge, which must be resisted by the materials used.
What freezes first a bridge or tunnel?
The bridge freezes first unless it has something over it. Because the heat is not trapped on the top of the bridge like it is in a tunnel. In a tunnel the heat does not radiate back out which is similar to the fact that you won't develop near as much frost on a windshield when it is parked under a carport than when out in the open.
Why are bridges built symmetrically?
they are symmetrically designed to help support the stability of the bridge. this is so that the weight is even n both sides. For example when you alliance a ruler on your finger you need to find its line of symmetry so that its weight is even on both sides. If you do not put your finger on its center of gravity the ruler is sure to tip.
What is the forth bridge made from?
i think but am not entirely sure that it is made from steel bars and concrete
Tappan zee bridge to Delaware memorial bridge?
To get to the Tappan Zee from the Delaware Memorial, continue straight when you get off the Delaware Memorial, and you'll be on the New Jersey Turnpike. Take that to the Garden State Parkway. Go north on the Garden State Parkway to where it ends. It ends at I-87 in New York. Go south on I-87 which is also eastbound I-287 because it's concurrent to I-87 and you'll be at the Tappan Zee.
A beach groyne works when you put a groyne on the water (usually made of timber, bamboo, or other materials), the only source for a groyne is so that the whole beach/island doesn't "wash away" and all of it's sand get washed off into the ocean.
Values of a and b in skemptons pore water pressure parameter?
Skempton's pore pressure parameters A and B are used to check the saturation of the sample. As when the sample is fully saturated if we increase the cell pressure there will be same amount of increment in the pore pressure too. The reason behind this is that the system acts more like a confined bulb . Similarly the parameter A gives the change in the pore pressure as we increase the deviatoric stress
Δu3=BΔσ3
Δud=AΔσd
The rank of KUET as a university in Bangladesh?
It's 3rd in Bangladesh.
KUET is the place where you have to compete to get yourself in a university for higher studies. Students have to go through a rigorous admission test to enter the university and therefore, some very bright students of the country get into Khulna University of Engineering and Technology. After passing from KUET students go for higher studies in foreign countries like USA, Canada, countries in EUROPE and a good number of them are holding faculty positions outside Bangladeshi universities.
How can you make a bridge out of paper and tape?
First, construct three cuboids out of the paper. If you find this too difficult, you can simply just cut a huge pile of paper the same size and stack them together. Don't forget to seal it with tape! (Make 3 stacks)Lastly, put them all together. Done!
What is the safest bridge in the world?
That depends on your idea of 'safest'... For deaths, there are many where nobody has died. As far as injuries go, it is unknown. However, I built a bridge in the woods and nobody has died or been injured on it. I call it the Way-To-Uncle-Tommy's-House-That-Mom-And-Dad-Said-Not-To-Go-To-Because-He-Was-A-Pedophile-But-He-Gave-Me-Cigarettes-And-It-Didn't-Hurt-That-Much-Anyway-Bridge.
What is an example of a suspension bridge?
Local examples- New York City area- On the Hudson- George Washington Bridge. On the East River, Brooklyn(l882) Manhattan ( over l00) and Williamsburg are traditional suspension spans. Both the Golden Gate and the San Francisco- Oakland Bay Bridge are also of this type.
Which is the oldest cable stayed bridge?
The Sutong Bridge in China, the longest cable-stayed bridge in the World, has a span of 1,088 metres or 3,570 feet
What came first horizon or horizontal line?
The concept of a "horizontal line" or "horizontal" existed before the concept of a "horizon." The term "horizontal" is used in geometry and mathematics to describe a line or plane that is parallel to the horizon or perpendicular to the vertical direction (i.e., it runs flat from left to right). The word "horizontal" has been used in this geometric sense for centuries.
On the other hand, the term "horizon" primarily refers to the apparent boundary between the Earth and the sky as seen from a specific point. The concept of the horizon has been part of human observation and language for much longer than precise geometric terminology. It's a fundamental aspect of how we perceive the world, particularly the natural world.
So, to summarize, the concept of a "horizontal line" came first in the context of mathematics and geometry, while the concept of the "horizon" has been a fundamental part of human observation and understanding of the Earth's curvature for a much longer time.
Composition: PCC flooring is made up of a simple mixture of cement, fine aggregates (usually sand), and coarse aggregates (typically crushed stone or gravel). Water is added to this mixture to create a workable concrete mix.
Installation: The installation process for PCC flooring involves pouring the concrete mix onto the prepared subfloor or ground surface. It is then leveled, compacted, and finished to achieve a smooth and level surface.
Use: PCC flooring is often used in areas where aesthetics are not a primary concern but where durability and functionality are essential. It is commonly found in industrial buildings, warehouses, basements, garages, and outdoor spaces like driveways and sidewalks.
Finish: PCC flooring typically has a basic, rough, or troweled finish. It is not as smooth or polished as decorative concrete finishes. However, it can be further finished or covered with other flooring materials if a smoother or more decorative surface is desired.
Strength and Durability: PCC flooring is known for its strength and durability, making it suitable for heavy loads and high traffic areas. Properly constructed PCC floors can last for many years with minimal maintenance.
Cost-Effective: PCC flooring is generally more cost-effective compared to some other flooring options like tile or decorative concrete. It is often chosen when budget constraints are a consideration.
Maintenance: While PCC flooring is durable, it may require periodic maintenance such as sealing to protect against stains and moisture infiltration.
Define pressure bulb in soil mechanics?
Shape: The pressure bulb is typically depicted as a three-dimensional shape, often resembling an inverted cone or pyramid. It extends downwards from the base of the loaded area or foundation into the soil.
Distribution: Within the pressure bulb, the pressure is not uniformly distributed. It is highest at the base of the loaded area and decreases with depth. The pressure distribution is influenced by factors such as the shape and size of the foundation, the load magnitude, and the properties of the soil.
Depth: The depth of the pressure bulb varies depending on the characteristics of the foundation and the soil. Deeper foundations will have deeper pressure bulbs.
Sections of bridges expand due to heating and/or changes over time in the bridge structural material (e.g. wood). [[User:Cjonb|Cjonb]] 18:33, 2 Jun 2008 (UTC)
What is the frost depth for Maryland?
Frost line here in Maryland is 24 inches. Foundations are normally dug to 30" where the footings are poured.
The year the mackinaw bridge was complete?
They started building the Mackinac Bridge in 1957. The bridge was finished and allowed traffic to cross it in 1957.
How do you solve konigsberg bridge problem?
Leonhard Euler proved that the problem has no solution.
What are the advantages and disadvantages of river bridges?
Mainly for transportaion/commuting. The downsize is when the river swells. A town near where I live had two (2) bridges to access it here in Arizona. They both were washed away during monsoon and the town was officially declared an "island" for a short while. All 3000+ residents had to be evacuated by helicopter...luckily the waters did not rise too much
How are the streets arranged in New York?
The streets of New York City are arranged on a grid pattern, except for Lower Manhattan. Lower Manhattan is the oldest part of New York City, and its streets were formed long before the urbanization of the remainder of Manhattan.
The strongest bridge in the world?
Arguably the longest bridge is the Bang Na Expressway, in Bangkok, Thailand. It is 33.5 miles long (54 km), but is not considered a bridge because it does not cross a single body of water, instead crossing a river and canals.
The longest bridge running over a single body of water in the world is now the Jiaozhou Bay Bridge in China. 42km in length, it links China's eastern port city of Qingdao to the island of Huangdao. The bridge cost over $1.4 billion to build and was completed in mid-2011.
Other record-holding bridges:
The longest bridge in the world for many years was the 36km-long Hangzou Bay Bridge, which opened in May 2008. The record-breaking bridge has main cable-stayed spans of 448m and 318m.
The world's longest bridge used to be the Confederation Bridge. It connects the Canadian province of Prince Edward Island to the province of New Brunswick. The 12.9 kilometre long bridge was the world's longest road bridge, crossing ice-covered water. It was opened to traffic in 1997.
The longest suspension bridge in Japan and the world is the Akashi-Kaikyo Bridge, completed in 1998 at a length of 1,991 metres.
The world's longest footbridge is believed to be the the Capilano Suspension Bridge, which crosses the Capilano River in Vancouver, British Columbia, Canada. This footbridge is 136m or 446 feet in length, with a height of 70m (230 feet) above the canyon.
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.
