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weight is misunderstood by some people. weight is defined as; mass x gravity, but, mass is not weight, and gravity is an accelerating force which pulls every mass towards the earth surface, which if there were no normal reaction force from the ground, each person standing on it would sink into it. Bridges react to the accelerating forces imposed upon them, so if a car was parked on a bridge, a reaction force would be set up from the bridge to counteract the accelerating force from the car on the road surface. Weight is really a balance of energy, therefore; mgh = KEV^2. If you pick up a shopping bag with lots of food stuff in, you say it is heavy, but what it is really, is energy, your energy mgh, against KEV^2, when the energy in the bag is greater than your energy, like picking up a concrete block, then you will not have sufficienct energy to pick it up? The bridge works in the same way, the energy the bridge has is significantly greater than any mass allowed to pass over it, or park on it.
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Are arch bridges better that beam bridges?
arch bridges can support more weight than beam bridges but for price i say beam won.
How do beam bridges support weight or load on them?
Instead of pushing straight down, the load of an arch bridge is carried outward along the curve of the arch to the supports at each end. The weight is transferred to the supports at either end.
Are truss bridges strong for their weight?
Yes they are
What advantages and disadvantages of an suspension bridge?
An advantage to covered bridges is that they shield traffic from the elements (rain, snow, high winds, ect.). One semi-common disadvantage is that covered bridges tend to burn more easily than other types of bridges.
What type of bridge was the first to be built?
The first bridges were built by nature in the form of trees falling across streams. The first bridges build by humans were also made of wood logs and were simple in design, but did not support much weight.
What is a curve in bridges or over doorways?
The curve that is used in bridges and over doorways is an arch. An arch is the curved part that is over an opening and it helps support the weight above the opening.
Are arch bridges better that beam bridges?
arch bridges can support more weight than beam bridges but for price i say beam won.
What is the best type of bridge?
truss bridges are able to support the most weight applies to the bridge, especially when the weight is applied to the middle
Why do you think pillars supporting bridges and high buildings are built broad at the bottom?
To make themstudier and so they can support the weight of themselves.
How much do beam bridges cost to build?
No one answer. How big is the bridge you want? How high, how wide, how long, to support how much weight?
How do beam bridges support weight or load on them?
Instead of pushing straight down, the load of an arch bridge is carried outward along the curve of the arch to the supports at each end. The weight is transferred to the supports at either end.
Why do female hips expand?
support weight when you get pregnant Hope this helps :D
How can bridges support cars?
hold it
Can you eat a pear at night?
Yes Very low calories and helps support weight loss
What shapes support bridges the most?
Triangles
What are the weaknesses of a cable bridge?
The bridges weight.
Are truss bridges strong for their weight?
Yes they are
