A: The Hat section is a much more rigid design than the Channel section: 1.) A higher moment of inertia and section modulus are achieved with less overall height. 2.) The bottom flanges increase the ability of the beam section to resist buckling when compared with a plain channel section. 3.) The beam is extremely rigid when it is subjected to eccentric loading from the broadside direction. The fact that the beam is bolted at the top and at the two bottom flanges creates an extremely rigid member. The DESIGNCO three place bolting method is a much more desirable and practical method when compared to channels which are only bolted at the top.
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A: We started using pins at all of the joining plates and at the center of the cross beams but discovered that it is only necessary to use the pins at the 4' intersection and at the 6' intersections.Click to edit FAQ text. Here is your opportunity to tell customers what they need to know about your products and services, and how your company operates. Do you ship products? Is there parking available for visitors? Do you do any custom orders? The more information you give customers up front, the more prepared they are to make a purchase when they come in or call.
A: Aluminum is the most practical and acceptable material for clean room use, as is stainless steel. DESIGNCO furnishes aluminum in Mill Finish or Baked on Powder Coat, both conductive or non-conductive. No carbon steel plated fasteners are used by DESIGNCO and their system.
A: Yes. The DESIGNCO 4'X4' or 6'X6' system can be manufactured in steel (powder coated) or stainless steel if desired. Aluminum, stainless steel, or powder coated carbon steel may be mixed in the same system if desired. DESIGNCO recommends aluminum as the most satisfactory because of its universal acceptability for cleanroom use. It's lighter weight for lower shipping costs, ease of installation, and ease of field modification when required.
A: Mainly because of the ability of the hat section to resist twisting and buckling better than the channel section plus we can bolt in three places instead of just one place. The hat section also develops a higher "Moment of Inertia" than does a channel section of the same height.
A: Yes! DESIGNCO's understructure will work with any available panel, aluminum, or steel. The panel manufacturer normally supplies his standard pedestal head. When the standard pedestal head requires upgrading because of higher than normal lateral or vertical loads, DESIGNCO can manufacture a pedestal head to suit.
A: All DESIGNCO pedestals are designed to act as cantilevered beams. There is no necessity for diagonal bracing which only wastes valuable under floor space and makes it more difficult for other trades to work around.
A: The diagonal beam system in a 4'X'4 system interferes with underside access to half of the panels on the job. With the 6'X6' system it is even worse. In a 6'X6' cell 5 of the 9 panels have the same problem. The 6'X6' diagonal beam system does not truly qualify as a 6'X6' system as it is necessary to add a prop pedestal in the center of the 6' diagonal beam.
This is one of the major benefits of the DESIGNCO system. Every panel on a DESIGNCO job has clear access to the underside!
A: DESIGNCO approaches each job on an individual basis. The understructure beams, H.D. pedestals and anchoring to the concrete are all designed, engineered, and calculated to meet the specific job requirements. Engineering calculations furnished A.R.O. -State Certified Structural engineer stamped engineering calculations furnished at no charge on the larger jobs. DESIGNCO specializes in doing the more difficult jobs as are required in UBC zones 3 and 4. Design, engineering, calculations, and manufacturing are all done in the house.
A: The reason is the basic cost of steel is less than aluminum. Manufacturing and installation is faster with aluminum because of its lesser weight. However, aluminum is 1/3 the weight of steel and shipping costs are less.
Example: A 6' Module Steel Beam is about 97 lb.., vs. an aluminum unit of about 35 lb.. A 97 lb.. Beam requires two work men to handle etc. Any modification for tool fit up becomes very difficult and slow with the steel, when compared to the modification of aluminum understructure.
A: The DESIGNCO 4'X4' System has all of the beams placed perpendicular to one another. There are no beams placed at a 45 degree angle which are difficult to cut and fit to. All cuts with the DESIGNCO System are Square Cuts.
In some cases main beams may be made purposely longer than the 4' or 6' module and cantilevered with no support required at the end. On longer beam extensions the beam can be braced back to the H.D. Pedestal at the base, in order to clear process piping, equipment, etc. that might be in the way. Much time is saved with the DESIGNCO System at tool fit up time, especially when compared to competitive steel systems and systems with 45 degree beams.