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建筑机械的发展,直接影响着建筑工程的机械化程度,而建筑起重机械在建筑机械中又占有重要地位。建筑用起重机主要有臂式(或车辆式)和塔式两大类。龙门式起重机在施工中少见,在混凝土预制厂和其他工业部门使用较多。
The development of construction machinery has a direct impact on the degree of mechanization of construction projects. Building cranes also play an important role in construction machinery. Construction cranes are mainly arm type (or vehicle type) and tower type. Gantry cranes are rare in construction and are used in concrete precast plants and other industrial sectors.