Some Vital Guidelines to Erect a Bridge

Given below, some necessary stages to construct a?bridge?in the public works sector.

Step One

The Foundations

The purpose of foundation is to disperse different types of loads of the bridge (mass, weight, overload, forces) perfectly based on the type of the ground of the structure.

The foundations are categorized as the following two types :-

The superficial foundations

These?foundations?are ideal for the bridges with level adjacent to the ground since the structures are susceptible to reduced constraints in?comparison?with the wind and their gravity. It is also necessary that the rocks within the structure should be strong, undecomposed and not greatly cracked.

Deep foundations

This type of foundation is effective while the bridge starts to obtain the height. Under this situation, it occurs consistently that the soil exposes a layer more stable in depth. At the time of construction, there are three situations which produce the following three types of foundation:

• Referred to as "good" soil, when it allows to set the foundations directly on a durable ground, is known as flat foundation.
• Referred to as "bad then good" soil, when it is required to place four piles in the unsteady ground unless they attain the steady ground.
• The soil becomes "unsettled", when the?quality of soil?in the ground is not good. Under this circumstance,?lots of piles?should be installed to provide good resistance capacity severe compression.

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