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Five years of collaboration and research has focused on rolling steel overhead doors and the effects of wind on the doors and the building. [13] As a result of this collective effort in the summer of 2010, DASMA released a technical guide to ensure that metal building framing can adequately support a rolling door. [14]
The 16 Divisions of construction, as defined by the Construction Specifications Institute (CSI)'s MasterFormat, is the most widely used standard for organizing specifications and other written information for commercial and institutional building projects in the U.S. and Canada.
With $48.666 billion in business with the U.S. federal government, Lockheed Martin, based in Bethesda, Maryland, is the largest U.S. federal government contractor. The Top 100 Contractors Report (TCR 100) is a list developed annually by the General Services Administration as part of its tracking of U.S. federal government procurement.
This is a list of properties and districts listed on the National Register of Historic Places in Connecticut. There are more than 1,500 listed sites in Connecticut. There are more than 1,500 listed sites in Connecticut.
Bulkhead door, an angled door covering the exterior stairwell of a basement; Bulkhead flatcar, a type of rolling stock designed with sturdy end-walls to prevent loads from shifting past the ends of the car; Rear pressure bulkhead, an airtight structural feature of an aircraft
A bulkhead is a retaining wall, such as a bulkhead within a ship or a watershed retaining wall. It may also be used in mines to contain flooding. Coastal bulkheads are most often referred to as seawalls, bulkheading, or riprap revetments. These manmade structures are constructed along shorelines with the purpose of controlling beach erosion.
A bulkhead is a flatcar with walls on the front and rear. A center-beam bulkhead is a bulkhead flatcar with an additional wall dividing one side of the flatcar from the other, but still without any sides. [104] Flatback Industry slang for trailer-on-flatcar service in the 1970s, especially in the trade journal Railway Age [113] Foamer
In 1985, Japan Air Lines Flight 123 crashed after a catastrophic failure of the aft pressure bulkhead. [18] The failure occurred due to faulty repair of the bulkhead after a tailstrike seven years earlier, when a single repair patch plate was incorrectly cut in two "to make it fit". Failure of the bulkhead damaged hydraulic pipes passing through.