There are 3 ways to prevent rusting
A. Plate the metal with another metal, expensive.
B. Paint or coat the metal with a chemical that prevents the metal from getting wet.
C. Chemically treat the metal so it can only rust a little and it cannot rust through.
Depending on what you are working with would determines the method you use.
Torsion effects a bridge when high winds blow on the structure causing it to twist like a rolling wave, thus causing torsion.
the force was torsion. the wind made it bend like silly puddy ************** The force exerted TO the Tacoma narrows bridge was initially the wind resistance. The wind resistance caused the whole bridge to act as a system with forced vibration with damping.
It is very important to find the shear center for the beams or sections that are undergoing majority of the load under torsion or twisting then the material will not fail under torsion as at shear centre there will be no effect of torsion or twisting. It will fail only by bending or any other force.
A mangonel is the perfect example of a torsion engine. The drive provided to this ancient catapult comes from a mass of twisted ropes which create torsion and when released provide the energy required to hurl whatever it is you wish.
1. for support of bracing 2. reduce the torsion effect. 3.reduce the slenderness ration Regard Ravi
The primary effect of gravity on a bridge is that it keeps it "in place" in the wind. The massive weight of the bridge is a key part of its structure and of its structural integrity. Certainly gravity acts to "pull the bridge down" in effect, but we use that to stabilize the structure, turning a "negative" into a "positive" in that light. Gravity transfers forces to the structures that support the bridge, and, in the case of (most) suspension bridges, hold the ends of the main cables to the massive blocks set to maintain the tension of those cables.
penis
A suspension bridge twisting in the wind.
a twisting force that causes torsion.
Tacoma Narrows Bridge
When ever you cross a bridge torsional strain is at work, the engineers utilized it to determine the payload of each bridge and your car creates torsional strain on the bridges members.
Torsion
There are many forces acting on a truss bridge compression, tension, and torsion. The truss bridge uses equilateral triangles to spread out the stress of the load on these forces along the hold structure.
tension pulls on the bridge, compression acts upon the supports of the bridge, and shear is created because of the wind blowing on the wind. extreme weather or earthquakes may cause torsion, but it's very rare that you'll find that in a bridge.
the force was torsion. the wind made it bend like silly puddy ************** The force exerted TO the Tacoma narrows bridge was initially the wind resistance. The wind resistance caused the whole bridge to act as a system with forced vibration with damping.
Torsion means twisting or being twisted. Intestinal torsion can be fatal.
torsion
The answer is the weight of the bridge design you build