The bottom strap on a water heater should be a minimum of 4 inches above the gas valve controls.
Water storage tank roof rafter earthquake straps.
The event of earthquake the design spectrum for sloshing in tanks the design pressure for silos.
The sloshing phenomena and pressures by the sloshing on the tank roof have been presented.
If the existing strapping is not 4 inches up then it is rather easy to move the strap up.
In the three dimensional tank most developed models use shell element for the wall the roof and the tank bottom beam elements for the roof rafters and fluid element for liquid containing cylindrical tank.
6 straps should be secured to the wall studs using lag bolts that are a quarter inch in diameter by 3 inches long.
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In this work the tank used has been treated by several authors 8 15 the tall tank has a height to a radius ratio h r of 2.
Awwa also has standards for coating steel water storage tanks d102 14 and factory coated bolted carbon steel tanks d103 09.
Roof rafters designed using a roof live load greater than 50 lb ft 2 2 400 n m 2 may utilize higher allowable stresses when using material with minimum specified yield strength greater than a36 material.
Holdrite quick strap stainless steel gas electric tankless water heater expansion tank mounting bracket model qs u 16 61 16 61.
Extensive requirements were added for anchor bolts and anchor straps.
What follows is advice from four manufacturers of water storage tanks and two tank consultants whose job it is to independently inspect water tanks as they are being built repaired or recoated.
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Rheem protech earthquake strap model sp13345 26 99 26 99.
Tank damage mode at hanshin awaji earthquake.
It begins with design.
Water heaters should be strapped so that in an earthquake they cannot shift about or move in any.
To obtain an illustrated copy of these standards contact the state and.
Second secure tank with heavy gauge metal straps top and bottom.
Water heater should resist horizontal displacement.
Storage tank dome roof storage tank conical roof fuel storage tank capacity approx 2 000 000 liters fixed roof and internal floating roof irrigation water storage tank.
Commercially available strapping kits make this a relatively easy process.
The storage of water spherical tanks pressure vessels for the storage of high pressure liquefied.
