Cargas Impacto

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    Shear onnectors

    Steel stud shear conn shall conform to the requirements of Structural

    Welding Code-Steel, D1.l.

    Manufacturer's certification shall constitute sufficient evidence of conformity

    with the code.

    The nominal loads shall be the minimum design loads stipulated by the applica-

    ble code under which the structure is designed or dictated by the conditions in-

    volved. In the absence of a code, the loads and load combinations shall be

    those stipulated in the American National Standard inimum Design Loads

    for Buildings and Other Structures, ANSI A58.1.

    The dead load to be assumed in design shall consist of the weight of steelwork

    and all material permanently fastened thereto or supported thereby.

    The live load, including snow load if any, shall be that stipulated by the appli-

    cable code under which the structure is being designed or that dictated by the

    conditions involved. Snow load shall be considered as applied either to the en-

    tire roof area or to a part of the roof area, and any probable arrangement of

    loads resulting in the highest stresses in the supporting members shall be used

    in the design.

    For structures carrying live loads* which induce impact, the assumed live load

    shall be increased sufficiently to provide for same.

    If not otherwise specified, the increase shall be not less than:

    For supports of elevators 100

    For cab-operated traveling crane support girders and their con-

    nections

    25

    For pendant-operated traveling crane support girders and their

    connections 10

    For supports of light machinery, shaft or motor driven 20

    For supports of reciprocating machinery or power driven units 50

    For hangers supporting oors and balconies 33

    e lateral force on crane runways to provide for the effect of moving crane

    trolleys shall be not less than 20 of the sum of weights of the lifted load and

    of the crane trolley, but exchive of other parts of the crane. The force shall

    *Live loads on crane support girders shall be taken as the maximum crane wheel loads .

    AMEREAN ~ S T I T U T E F STEEL ONSTRUCTION