重型吊车 meaning in Chinese

heavy crane
sling cart

Based on practical project of inspecting , appraising and reinforcing a main heavy factory building , especially its steel crane girder system , of the second steel mill belonging to taiyuan steel & iron corporation , whose technology renovation leads to increase tonnage of many heavy cranes and vertical load of frame - bent structure , first the structure and its members were investigated , inspected , calculated and analyzed , and their reliability was appraised respectively and the strengthening projects or the measures to remedy were given . then , in accordance with the requirement to strengthen the girders under non - stop production , the feasibility of strengthening the crane girders by adding steel diagonal braces underneath the existing girders has been studied by inspecting and evaluating the strengthening effect of the crane girders and comparing with other reinforcing scheme
本文结合太钢(集团)有限公司第二炼钢厂主厂房由于生产工艺改造要求，加大多台重型吊车吨位及bc跨( 1 ) ( 8 )轴线框排架各层竖向(设备)荷载后，对厂房结构，尤其钢吊车梁系统进行检测鉴定与加固设计的实际工程，首先对厂房结构进行了现场调研、技术检查、测试以及内力和承载能力的计算与分析(考虑抗震) ，并根据检测、计算与分析结果，对厂房结构、构件的可靠性进行了评定，并综合提出鉴定结论和加固处理建议。