A bridge
must have expansion gaps or else they will waver when they expand in warm temperatures. This is thermal expansion
Thermal expansion means that the length of the bridge changes.
When the metal bridge heated up in the summer sun, it expanded due to thermal expansion, causing the joints to shift slightly.
Two examples of thermal expansion in solids are the expansion of a metal rod when heated, causing it to increase in length, and the expansion of a bridge beam on a hot day, resulting in the beam bending slightly due to the increase in temperature.
because in the summer, its hot and the bridge will expand and if you dont have enough room to expand the bridge will crack under pressure and in the winter the bridge may shrink a bit and might also crack. hope it helps :)
Thermal expansion and contraction can put huge stresses into a large structure such as a bridge. To minimise this effect, the rollers are designed to allow the end of the bridge to move with the expansion and contraction.
Thermal expansion can affect the performance of a pressure regulator by changing the volume of the fluid inside the regulator as the temperature increases or decreases. This change in volume can impact the pressure setting and accuracy of the regulator, leading to potential fluctuations in the output pressure. It is important to consider thermal expansion effects when designing or selecting a pressure regulator for a specific application.
bridge expansion is when one side of the bridge needs to be propped up
The temperature of an object affects its thermal expansion by causing its particles to move faster and spread out, leading to an increase in volume. Conversely, when the temperature decreases, the particles move slower and the object contracts.
The increase in volume of a substance due to an increase in temperature is called thermal expansion. This occurs because as the temperature of a substance rises, the particles within it gain energy and move more, causing them to spread out and increase in volume.
thermal expansion
Thermal expansion can affect the length of the pendulum, which can alter its period. As the pendulum lengthens due to thermal expansion, its period will slightly increase. Conversely, if the pendulum shortens due to thermal contraction, its period will slightly decrease.
Thermal expansion (TE) is a process in which materials expand due to changes in temperature. How different structures deal with or compensate thermal expansion (just some examples): Bridges and other structures have expansion joints (there are gaps in the road, which you hear/feel when crossing them in a car for example - usually in both ends of the bridge and sometimes in between as well, depending on the lenght of the bridge). Sidewalks - depends on the material of the sidewalk (sometimes there may be some spaces between different sections, but the temperature fluctuations are not so huge that it is reasonable to use any predicament against TE. Railroads - do you know the banging sound really associated with trains and railroad? This is a basic example of thermal expansion compensation. The tracks are assembled so that the ends of two track sections are not touching each other. The gap in between allows the track to expand in heat (therefore the sound of train wheels rattling is louder in the winter when the gaps are bigger and less in the summer)