Pre-Engineered Steel Buildings

Much depends on how the building is use, will it have a highly used bridge crane? operators will often slam them into the buffers to true them up when they "crab", will it have production forklifts running around at high speed? operators get careless in their haste to make production goals.

I would elect to use the fabricated building, it is much more able to withstand mistreatment because it has reserve capacity. The fabricated building uses standard shapes that are rarely an exact fit, so they have spare capacity. The PEB uses custom material that just meets minimum requirements.

Generally, PEBs are useful when they just provide a protective envelope but not when they are part of the process.

There will be three EOT Cranes running in the shed, 1 No. 50 Tonne Laddle pouring crane, 2 Nos. 20 Tonne billet handling cranes. There will not be any fork lifts in the shed.Of course there will be rough and tough conditions in the plant.

Excel Engineering Company-Bangalore, Manufacturer and Service Provider for Pre-Engineered Building Systems, Offers Flexibility in Design, Fabrication and to Erect Steel Structures to Suit Construction Needs at Home, Office, Factory etc.,

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excellent! ga

There's a lot of "what ifs" and other conditions that affect the ultimate design of a traditional steel framed building versus a PEB, and what is finally acceptable to you the owner or operator, including management.

I'll go with passingtongreen on his assessment......PEB's offer better economy as well as specific engineering design customized to the specific uses and manufacturing processes. Most well experienced PEB fabricators that are larger in nature and have been a long time have professional structural engineers on their staff that can design proper steel frames to accept overhead crane rail loads and other needs, all tailored to your shopping list. You can get this also with traditionally design steel or reinforced concrete structures, but the end result will be a higher cost, a delay of construction, and a longer construction period.

Although I haven't been involved in the design of a new foundry buildings that featured overhead crane systems I have been involved in the design of other heavy industry and manufacturing facilities. Closest that I have come to deigning a building for a steel foundry has been a retrofit of certain heavy manufacturing buildings at the Watervliet Arsenal (Watervliet, NY), whose operations are overseen by the US Army's Material Command. But then the steel frame was a traditional one, not a PEB type. [The Arsenal currently manufactures 120mm smooth barrel tank cannons used in the Army's M1A1 Abrams Main Battle Tank, as well as 105mm artillery tubes. It is the oldest continuously operated military arsenal in the US (since 1812 I believe, but don't quote me on that).]. I've designed other heavy massive lift overhead crane systems (w/ retrofits and upgrades) for GE Steam Turbine Assembly Building and at a couple of buildings within KAPL, both located in Schenectady NY and it's suburb Niskayuna respectively.

ps: Anyhow, sometimes it's advantageous to have a "stand-alone" overhead crane system, purely based on the need for flexibility, maintenance and economy.

I think I would coat the steel with a Coal Tar Paint is resist almost all attacks and will make the steel of the building last a long time.

The only bad thing about the coating I have ever seen is it will get very brittle and chip if hit a lot .

Of the owner can keep things from hitting the walls he will get a long life out of the material, in my opinion

If you are from India then it is ok otherwise shipment of 800 Tonnes of steel is biggest problem.

I don't think a coal tar coating would hold up well in a extremely hot environment such as a steel foundry. There is a very high potential for the coating to ignite, as the furnaces reach several thousands of degrees (F) temperature...then there is radiated heat to deal with. You need an ample amount of air space between the furnace, hoppers and rolling beds and the steel structure.

A better coating such as hot-dipped zinc galvanizing or hot-temperature resistant epoxy paint would last a much longer time period.

we've had very good luck with hot dipped zinc sheeting, as captmoose has suggested, in these situations. heat shields should prevent the sheets from warping if thats a problem i'ld stay away from buying a pre-fab. they try to sell buildings that they've already designed for general useage.

It is question not about only surface finish of the structures it is suitability of such buildings for industrial purpose. Its stability, load taking factors, corrosion resistance from furnace fumes and heat.So far PEB mfrs do not have track record in this sector but they are confident their building can meet all requirements.

yes i realize that, but it was just one example as to why a pre-fab would not be a good chose. your customer will need a speially designed building to suit his needs. i've erected dozens of pre-fabs, and i assure you that you will end up with what we call in the trade as a "tin building" that is'nt suitable for anything industrial.

Thanks for your reply.I will convey my customer accordingly.