It is a standard way of communicating the girder design loads such as 48G6N10.5K where the first number is the nominal girder depth at midspan, 6N is the number of joist spaces on the span of girder, and 10.5K is the kip load on each panel point of the girder. The approximate dead load weight of the member is included in the kip load. See Joist Designation and Longspan Designation.
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It is a seat which is sloped perpendicular to the member which most joist manufactures do not do. Usually the steel contractor furnishes a bent plate shim to provide level bearing for the seat.
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It is a series of joist adopted in 1961 so proportioned that the allowable tension or bending stress does not exceed 22,000 psi or 30,000 psi depending on whether 36 ksi or 50 ksi yield steel was used.
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These are two angles or other structural shapes connected from the top chord of one joist to the bottom chord of the next joist to form an 'X' shape whose l/r ratio cannot exceed 200. The bridging members are almost always connected at their point of intersection.
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These are two angles or other structural shapes connected from the top chord of one joist to the bottom chord of the next joist to form an 'X' shape whose l/r ratio cannot exceed 200. The bridging members are almost always connected at their point of intersection.
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It is the out-to-out distance from the top of the top chord to the bottom of the bottom chord taken a some reference location, usually at the midspan of the joist or joist girder.
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