What is prestressed concrete?

Prestressed concrete is a combination of high -firm concrete and steel springs. This combination creates a very strong structural material that is used in the construction of roof plates, bridge beams and rail bonds. The prestressed concrete was invented and patented in 1886 by Henry Jackson, an engineer in San Francisco. This type of concrete has become the material of choice in Europe after World War II due to lack of steel. The Walnut Lane Memorial Bridge, built in 1951 in Philadelphia, Pennsylvania, became the first structure in America made of this type of material. When the service loads are added to the beam weight, the hairline cracks develop. Over time, these cracks increase and eventually the concrete breaks up. Thin concrete pads tend to bow when another weight is added, resulting in a shift of the house. These changes are why prestressed concrete was invented.

prestantEsted concrete can be created using two different methods; prestress and expression. The preload method involves stretching high tensile steel strands between the abutments located at both ends of concrete casting. After teaching the strands, the concrete is poured into bed, where it surrounds and holds the springs. Once the concrete is dry, it will be associated with steel. After the concrete reaches the required force, the springs are released, resulting in the concrete developing a slight arch that makes it more resistant to heavy loads.

There are several reasons for using this type of concrete in different structures. The beams are made of prestressed concrete to withstand stress without cracking. The pile is prescribed, so it is not covered by the forces of strong transport and driving. The columns are made of prestressed concrete, so that the Under does not fit the weight of heavy loads. Thin concrete cushions are prestressed to prevent leaning below normal weight.

creating prestressed concrete using a voltage method involves the use of compressionAfter pouring and hardened concrete. The concrete is poured around a curved canal that passed through it steel springs. After curing, the voltage is applied to the springs using hydraulic connectors. The springs are then wedged in place, so the voltage remains after the hydraulic connectors are removed.

Concrete created by voltage method is used as monolithic boards for houses located in areas with large soils such as Adobe Clay. This type of concrete is also used to create structures where seasonal expansion and soil contraction are a problem. The continuing concrete is highly efficient for building buildings with a more complicated design.