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1. IntroductionThe gantry crane is a bridge type crane that is supported on the ground track by the legs on both sides of the bridge. It is also called a gantry crane. It is a kind of material transfer by lifting the vertical weight and horizontal movement of the heavy objects on the hook or other taking device. Heavy-duty lifting equipment. The gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility; it is widely used in construction engineering and bridge construction, power, shipbuilding, automobile manufacturing, metall...