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The LH- and DLH-Series have been designed for the purpose of extending the use of joists to spans and loads in excess of those covered by Open Web Steel Joists, K-Series. LH-Series Joists have been standardized in depths from 18 inches (460 mm) through 48 inches (1,200 mm), for spans through 96 feet (29,000 mm).
Diagram of double tee beam. A double tee or double-T beam is a load-bearing structure that resembles two T-beams connected to each other side by side. The strong bond of the flange (horizontal section) and the two webs (vertical members, also known as stems) creates a structure that is capable of withstanding high loads while having a long span.
Portal frame is a construction technique where vertical supports are connected to horizontal beams or trusses via fixed joints with designed-in moment-resisting capacity. [1] The result is wide spans and open floors. Portal frame structures can be constructed using a variety of materials and methods.
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As of 2005, approximately 50% of all wood light framed floors used I-joists. [2] [clarification needed] I-joists were designed to help eliminate typical problems that come with using solid lumber as joists. The advantage of I-joists is they are less likely to bow, crown, twist, cup, check, or split as would a piece of dimensional lumber. I ...
Data from the National Weather Service in Boise shows that from around 4:30 p.m. to 5:30 p.m. on Wednesday, the area near the airport sustained winds of 14-17 mph, the Statesman previously ...
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Boise native William Agee joined the company in 1964 and was the chief financial officer from 1969 to May 1972; [5] [6] the stock price rapidly rose to $77 in 1969, but was down to $15 by the fall of 1971. [7] [8] Boise Cascade's current headquarters in Boise was built in 1970, designed by architecture firm Skidmore, Owings & Merrill.