对冂型桁架门式起重机金属结构的检测与分析

The Test and Analysis of the Metal Structure of 冂 Type Trussed Portal Cranes

介绍冂型桁架门式起重机金属结构检测的内容与方法，并对其强度、疲劳、静刚度、动刚度、锈蚀情况作会面评述。指出了原结构存在的不足及解决的措施。进而引出增吨使用的问题，以发挥设备的潜在能力。

The contents and process of the test of 冂 type trussed portal cranes are introduced. And the strength. fatigue, static stiffness, dynamic stiffness and rustiness of the abovestructure are also discussed comprehensively. The shortcomings of the structure are pointed outand remedial measures are given. Then the problem of increasing the lift capacity in crane operation is proposed in order to give the reins to the latent potentialities of the equipment.