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5月12日四川汶川8.0级地震发生后,对西安运行的塔式起重机(以下简称塔吊)造成了较大的损坏,全市1200多台塔吊,30%塔吊不同程度出现了故障和损坏而被迫停用。其中使用高度较高的20台塔吊受到严重的损害,有的起重臂上翘,有的平衡臂断裂下垂,有的起重臂折弯,有的塔帽失稳,特别严重的是塔身断裂,上部分部件高空坠落横躺在马路中间,砸毁了两辆汽车造成了人员伤亡;其他大多数塔吊附墙装置损坏或松动,标准节连接螺栓松动、焊缝开裂塔身倾斜等,直接影响着建筑工地的正常施工。
On May 12, after the Wenchuan 8.0 earthquake in Sichuan Province, great damage was caused to the tower crane operating in Xi’an (hereinafter referred to as the tower crane). Over 1,200 crane towers and 30% crane towers in the city were damaged and damaged in varying degrees and forced to be forced Disabled Among them, 20 tower cranes with high heights were seriously damaged. Some of them were upturned, some were broken by sag, some were bent and others were unstable. The most serious problem was the tower Fracture, part of the upper part of the high-altitude crash lying in the middle of the road, smashed two cars caused casualties; other most of the tower crane wall damage or loosening, the standard section of loose bolts, weld cracking tower tilt, direct Affect the normal construction site construction.