What’re the gantry crane design conditions(Part I)?
Working condition 1: in the working condition with no wind, gantry crane does not move, trolley lifts rated loads at mid-span;
Working condition 2: in the normal working condition, trolley lifts rated loads at mid-span, crane moving system brakes;
Working condition 3: in the normal working condition, crane does not move, trolley lifts rated loads to mid-span and brakes
Working condition 4: in the normal working condition, trolley lifts rated loads at end of main girder, and crane moving system brakes
Working condition 5: in the normal working condition, crane does not move, and trolley lifts rated load to rigid support leg and brakes.
