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design and construction of a prestressed concrete tank
Engineering and Construction
Pages 8 (2008 words)
Design and construction of a prestressed concrete tank Introduction Prestressed concrete tank did not come out as an acknowledged building material up to a half-century later despite it being patented by an engineer of San Francisco in 1886. The scarcity of steel in Europe subsequent to World War II together with technological improvements in high-strength steel and concrete made prestressed concrete tank a building material of choice throughout European post-war reconstruction…
The principle behind the prestressed concrete tank is that the compressive stresses induced by the high-strength steel tendons inside a concrete member prior to the loads being applied will balance tensile stresses inflicted in the member during the service. It`s recognized that prestressing eliminates several design limitations and conventional concrete places on load and span and allows the building of roofs, bridges floors, and walls with elongated unsupported spans. With this in mind, architects and engineers design as well as build lighter concrete tanks without sacrificing strength. This principle behind prestressing in concrete tank can be illustrated in a row of books being moved from one place to another. Instead of vertically stacking the books and carrying them, they may perhaps be shifted in horizontal position by putting pressure to the books right at the end of row. Whenever sufficient pressure is applied, the compressive stresses are induced all over the entire row, and so the whole row can always be carried and lifted horizontally at once. ...
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