How Do Bridges in the Seas Not Sink?

Sometimes when traveling by car over big bridges We can pass. The same question probably arises in all our minds, “How do bridges not sink even though they carry tons of weight?”

These magnificent structures by waves, wind and other natural factors It copes magnificently. But how?

The basic structure of bridges is that they not only go over things, but also leave space underneath for a river, railway or road.

This means bridges present a unique structural challenge. On a normal road, forces is transferred directly to the ground.

However, on a bridge, these forces on the feet or supports on each side intensifies. That’s why bridge infrastructures are among the strongest engineering systems on the planet.

Rivers and oceans have muddy soils that are too soft to support heavy loads. So, how can bridges survive on such grounds? Here it is Pile foundations come into play.

Piles are long poles driven into the ground, and these poles to carry the weight of bridges designed. By compressing and densifying the ground, the piles create friction in the soil around it and help keep the bridge stable.

The first stakes were made of wood, but the wood rots over time and is limited in length.

Concrete piles solve these problems because stronger and in various sizes They may be. Steel piles are thinner and more durable. Steel tube piles and H-piles can be driven more easily and go deeper than concrete piles.

During pile driving Newton’s third law comes into play. Pushing the stakes deeper creates an equal and opposite reaction. Therefore, piles are driven in with a large hammer. The process increases the pile’s capacity to support the ground and enables it to safely support the weight of the bridge.

Bridge abutments are usually built underwater.

Pouring concrete under water is difficult because Water can weaken concrete. A pipe called tremie is used to solve the problem. The pipe prevents the concrete from mixing with water when pouring it under water. As the concrete is placed under water, it pushes the water out and creates a solid foundation.

Bridges must also cope with horizontal loads. Wind and water currents apply horizontal forces to the bridge. Therefore the stakes sometimes placed at an angle which provides stronger resistance to horizontal loads.

In short, the secret of bridges standing strong over the seas is, engineering and design It is hidden in its wonders.

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