Horton Double Deck Floating Roof

Double deck roof is more rigid than the single deck and the air gap between the upper deck and bottom deck plates works as an insulation which reduces the solar heat reaching the product during the hot weather.
Horton double deck floating roof. Some e f t of 86m in diameter in our plant. Diameter to store crude oil. It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. Advance tank performs all floating roof repairs in strict compliance with api 653 and api 650 standards.
If your floating roof is beyond repair we can demo your existing roof and design a new floating roof that is compliant with the current requirements of api 650. A pan type floating roof comprises a single circular deck or plate having a vertical rim at the periphery thereof. So the transfered weight from live load is 125t for 118. A double deck floating roof comprises a circular like pontoon made up of two.
The sketches shown illustrate the above single deck and double deck floating roof with the critical components for these structures. External floating roof tank double deck type an external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. Does anyone have cad drawings or pdf files for a ddfr showing details for tank of diameter 300 ft say eg pontoon layout location of support legs etc any information will be. A horton double deck floating roof consists of two complete decks top and bottom joined by a series of concentric rims forming buoyant annular bays.
Internal floating roof tank is known as internal floating roof storage tank floating roof oil tank internal floating plate storage tank and internal floating plate oil tank etc. Enhanced design requirements improve reliability for floating roofs. Meyers only has a cross section and a vague picture. Double deck floating roof details double deck floating roof details gerrytt structural op 23 jan 03 09 13.
Specifically it is an environment friendly and economical storage tank or oil tank installed a floating roof under the vault of the tank usually made of aluminum stainless steel or other material to prevent the. The outer annular bay is divided into smaller compartments by radial bulkheads. The tank calculation sheets showed the load combinations for supporting lugs are 1 long term is dead load of roof live load 122kg m2 25psf 2 short term is dead load of roof rain fall 250mmaq. Figure 2 double deck floating roof.