Transcription of SELECTING and SPECIFYING - American Institute of Steel ...
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SELECTING . and SPECIFYING . Wesley B. Myers, An insider's guide to SELECTING and SPECIFYING K-series, LH, DLH-series joists and joist girders S. ince the Steel Joist Institute based on L/360 allowable deflection, double KCS joists can be used, or an adopted the first standard erection stability bridging require- LH-series joist can be selected. specification and first load ments and approximate joist weight. It table in 1928 and 1929, respec- also includes the K-series economy LH AND DLH JOISTS. tively, the building designer table so the lightest joist for a given The second series, the Long Span has been able to specify standard joist load can easily be selected. The ends of and Deep Long Span Steel joist or the designations rather than design each K-series joists must extend at least 2 LH and DLH series, is defined as sim- structural component of each Steel over Steel supports (see Figure 2).
Weight Tables for Steel Joists and Steel Girders contains three standard specifi-cations for three distinct series. K-SERIES Open Web Steel Joists or K-series are defined as simply supported uniformly loaded trusses that can support a floor or roof deck (see Figure 1). The top chord of the joist is assumably braced against lateral buckling by ...
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