3.1 dead load<br>(1) The dead weight of camera and auxiliary equipment is F1 = 60kg, and the dead weight of fixed steel suspender is F2 = 10kg.<br>(2) The self weight of 450x450 aluminum alloy truss is Q1 = 10kg / m, and that of 450x710 aluminum alloy truss is Q2 = 15kg / m.<br>(3) The self weight of camera horizontal positioning system is Q3 = 5kg / m.<br>(4) The self weight of electric chain hoist and chain is F3 = 15kg, and the maximum load is 500kg.
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