LNG Tanks/Silos

Over the past few decades, world consumption of LNG has increased more than five-fold and it is predicted that this growth will continue to be very strong. The growing demand from large markets combined with the increasing popularity in a number of other smaller markets has resulted in the development of many new LNG facilities throughout the world.

Silos are used in agriculture to store grain (see grain elevators) or fermented feed known as silage. Silos are commonly used for bulk storage of grain, coal, cement, carbon black, woodchips, food products and sawdust. Three types of silos are in widespread use today: tower silos,

LNG Tanks

Liquid retaining structures, such as circular pipes, tanks and pressure vessels are admirably suited for circular prestressing. Circular prestressing eliminates cracks and provides for an economical use of materials. In addition pre-stressing safeguards against shrinkage cracks in liquid retaining structure.

In circular prestressing, the member may be pre stressed by overlapping tendons within the ducts so as to minimize friction losses. An alternative method is to wrap the high tensile wire under tension around precast cylinder member. 

Cylindrical tanks are by far the most commonly used types from structural and construction considerations. Some of the largest pre - stressed concrete tanks constructed are circular in shape. A cylindrical shape is well suited for circumferential wire wrapping, which constitutes the major pre-stressing operation in tanks.

Square or Rectangular tanks, spanning either vertically or horizontally, are required for industrial use. Square tanks are advantageous for storage in congested urban and industrial sites where land space is a major constraint.