Rafter Supported Dome Roof Tank

Traditionally their construction is composed by radial elements girders ring shaped elements rings and roof cover.

Rafter supported dome roof tank.

Design and construction requirements for dome roof tank of capacity 70 000 m3. A self supporting dome roof is a roof formed similar the spherical surface supported on its periphery. Easy to install central platform for all the accessories on the top. Tank connection can provide the right solutions the.

Self supporting roofs especially dome roof are very suitable when internal pressure is increased. Rafter supported dome roof tank free download as pdf file pdf text file txt or read online for free. In many instances an aluminum dome may be requested to replace an existing roof that is failing or the customer may wish to add a dome to an open top tank. A major part of the domes are used to cover steel tanks for oil storage.

The dome roof tank is usually used for storing volatile liquids at low pressure. More accuracy and tightness with lock bolt connection. The dome roof tank comes in a single and double wall type. When the roof is self supporting internal space of the tank is free and it is more convenient to install internal floating roof.

No other means of support is used. Design of steel storage tanks as per api 650 self supported cone roof design data service hsd service allowable design st capacity 21 kl allowable test stre type of tank self supported cone roof specific gravity of l dia of tank feet 10 004 corrosion allowance height of tank feet 9 512 slope of roof 1. Zero hot work at site. The center column and rafters themselves do involve some extra maintenance liability but also lower the initial cost.

Latterly internal floating roofs can be mounted when fixed roofs is supported and there are columns inside. You can use a columnless arrangement with rafters or use trusses but these don t really improve the maintenance aspect. Another option would be an aluminum dome roof. On a tank of that size an umbrella would work pretty well.

5 slope of bottom flat bottom plate data. Tank connection can also design and install stand alone domes for any type of steel tanks bolted or welded as well as concrete tanks.