Load combinations for blast load
Load combinations for blast load
(OP)
I am looking for load combinations that incorporate blast loads on a pre-engineered blast building for foundation design purposes. Does anyone have any suggestions?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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Load combinations for blast load
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RE: Load combinations for blast load
RE: Load combinations for blast load
RE: Load combinations for blast load
RE: Load combinations for blast load
The first building I designed was a reinforced concrete "blockhouse" housing observers, computers and instrumentation complete with blast and impact resistant (8" thick) windows. It was a proven system/configuration.
We looked at blast and pressure effects from the rocket facility and designed the building including the windows, doors, walls and roof for any possible situation. It worked perfectly for the first few situations.
A few weeks later, I got called at night because of a failure. During maintenace, a liquid hydrogen tank was vented with nitrogen, but the weather conditions permitted a bubble of hydrogen gas to stay over the area above the blockhouse. Static electricity (warm, dry air) caused an ignition that created an explosion that pushed down the roof into the equipment below. The load was more than a traditional analysis (wind, blast, etc.) for roof loading
Bottom line - If you are around unusual conditions AND materials, you should widen your scope for possibility beyond the normal. For industrial or unique situations the downtime cost is many, many times greater than a little extra effort and material. This may not apply to your situation, but it was definitely a learning experience.
Dick